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Temporal processing (e.g., pulse width variation over time

Subclass of:

345 - Computer graphics processing and selective visual display systems

345204000 - DISPLAY DRIVING CONTROL CIRCUITRY

345690000 - Intensity or color driving control (e.g., gray scale)

Patent class list (only not empty are listed)

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Class / Patent application numberDescriptionNumber of patent applications / Date published
345692000 Binary weighted 5
20100165013LIQUID CRYSTAL DISPLAY DEVICE - Disclosed is a liquid crystal display device, which is capable of reducing a required response speed and increasing a pixel aperture ratio, as compared with a field sequential driving scheme. A unit pixel of a liquid crystal display panel is made up of a first sub-pixel adapted to allow only any two of red, green and blue lights to pass therethrough, and a second sub-pixel adapted to allow only a remaining one of the red, green and blue lights to pass therethrough, wherein one frame of image is time-divided into n pieces (wherein n is an integer of two or more), and respective image information about the two lights are applied to the first sub-pixel during every duration of the 1/n frame, while applying image information about the remaining one light to the second sub-pixel during a duration of the one frame of image. Further, the respective two lights are emitted during every duration of the 1/n frame in synchronization with applying the respective image information about the two lights, while continuously emitting the remaining one light during the duration of the one frame of image.07-01-2010
20110199405DIGITAL GRAY SCALE METHODS AND DEVICES - Methods and devices for generating grayscale using digital pulse width modulation between optical states. Grayscale may be generated for each component color using multiple algorithm cycles per display field. Subsets of binary weighted bit values for data values of each component color may be split across algorithm cycles to reduce the number of data comparisons per color per display field. The total number of data comparisons per color per display field may be reduced by half or more.08-18-2011
20110109670METHOD AND DEVICE FOR DRIVING AN ACTIVE MATRIX DISPLAY PANEL - An active matrix display panel comprises a substrate, an array of pixel circuits being arranged in a matrix of at least one column and a plurality of rows on the substrate, each pixel circuit comprising a light-emitting element, capable of emitting light of an intensity determined by the value of a current passed through it, and at least one column line, each column line arranged to conduct a reference current, provided by a current driving circuit, when connected to the panel. The pixel circuits in a column are divided into a plurality of groups of at least one pixel circuit. The active matrix display panel comprises at least one current mirror circuit associated with a first group, comprising a first current mirror, arranged to mirror a reference current flowing through a column line to a first current mirror output. Each pixel circuit in the first group comprises at least a first current-memory stage, having an output terminal connected to the light-emitting element, wherein the first current-memory stage is capable of drawing a current determined at least partly by the current mirrored to the first current mirror output through the output terminal. Each current mirror circuit comprises at least one additional current mirror, arranged to mirror a reference current flowing through an associated column line to an additional current mirror output, wherein each additional current mirror output is connected in parallel to the first current mirror output.05-12-2011
20120218323MITIGATION OF ARTIFACTS IN PWM ILLUMINATION IMAGING - A system and method for reducing pulse width modulation contouring artifacts. Each input intensity value is translated to at least one non-binary bit pattern for display. Many of the input intensity values are translated to at least two alternate non-binary bit patterns. The alternate codes are used to smooth the transition between intensity codes as major bits are turned on. The smoothing occurs by the gradual transition from codes that do not use the major bit to codes that do use the major bit. Typically the alternate codes are selected based on the location of the pixel in a spatial pattern (08-30-2012
20080198184Fast and Interruptible Drive Scheme For Electrosphoretic Displays - An image update scheme for an electrophoretic display reduces driving delays while allowing display of a reduced quality image when driving is interrupted. A first portion (08-21-2008
345693000 Non-binary weighted 1
20090079769DRIVING METHOD, DRIVING CIRCUIT, ELECTRO-OPTICAL DEVICE, AND ELECTRONIC APPARATUS - A display device includes a data converting section that converts display data that is to be supplied to pixel units. The data converting section converting on the basis of a predetermined conversion rule for each of a plurality of fields. The plurality of fields corresponds to respective light emission time periods of the plurality of light beams and following one after another in a successive manner on a time axis. The predetermined conversion rule converts data for a preceding field of one color to achieve a value in a successive field of a different color, such that the value approaches a desired value for at least one of brightness and color obtained when an image is displayed in the display area during the successive field.03-26-2009
Entries
DocumentTitleDate
20100156963Drive Unit of Display Device and Display Device - In one embodiment of the present invention, a drive unit of a display device is a drive unit that drives a display device in which one frame is divided into a plurality of sub-frames so that display of input video data is realized by summation of displays of the sub-frames, and the drive unit includes: a sub-frame data generating section generating sets of sub-frame data corresponding to the respective sub-frames; and a sub-frame period fixing section setting at least one sub-frame period to a given value regardless of a type of the input video data. This makes it possible to prevent variations of display quality with respective to various kinds of input video signals.06-24-2010
20130083095DISPLAY DEVICE AND METHOD FOR DISPLAYING 3D IMAGES THEREOF - A method for displaying 3D images of a display device is disclosed. The display device includes a display panel and a backlight module. The method includes determining a first turn-on time length of the backlight module according to a gray level of at least a pixel of a first frame; when the display panel displays the first frame, turning on the backlight module for the first turn-on time length; determining a second turn-on time length of the backlight module according to a gray level of at least a pixel of a second frame; and when the display panel displays the second frame, turning on the backlight module for the second turn-on time length. The method for displaying 3D images can reduce crosstalk effect of the display device.04-04-2013
20110181633DRIVING METHOD FOR IMAGE DISPLAY APPARATUS AND DRIVING METHOD FOR IMAGE DISPLAY APPARATUS ASSEMBLY - Disclosed herein is a driving method for an image display apparatus which includes an image display panel and a signal processing section. Each of the pixels includes a first subpixel for displaying a first primary color, a second subpixel for displaying a second primary color, a third subpixel for displaying a third primary color and a fourth subpixel for displaying a fourth color. The signal processing section is capable of calculating a first subpixel output signal, a second subpixel output signal, and a third subpixel output signal. The driving method includes the step, further carried out by the signal processing section, of calculating a fourth subpixel output signal based on a fourth subpixel control second signal and a fourth subpixel control first signal, and outputting the calculated fourth subpixel output signal to the fourth subpixel of the (p,q)th pixel.07-28-2011
20120162291DRIVING CONTROL CIRCUIT OF DISPLAY DEVICE - The present invention aims to provide a driving control circuit of a display device that is capable of preventing an unnatural black screen. To this end, the driving control circuit is configured to include a plurality of TMICs, each of which is merged with a timing controller and a source driver, and the time controller is configured to adjust end locations of the horizontal blank intervals of data enable signals to match the end locations outputted from TMICs to an end location of a horizontal blank interval of a data enable signal outputted from another TMIC, and, when a gate output enable signal is supplied, perform adjustment so as to indicate a rising edge of the gate output enable signal before the data latch enable signal having the highest frequency is supplied.06-28-2012
20120169802LIGHT EMITTING PERIOD SETTING METHOD, DRIVING METHOD FOR DISPLAY PANEL, DRIVING METHOD FOR BACKLIGHT, LIGHT EMITTING PERIOD SETTING APPARATUS, SEMICONDUCTOR DEVICE, DISPLAY PANEL AND ELECTRONIC APPARATUS - Disclosed herein is a light emitting period setting method for a display panel wherein the peak luminance level is varied through control of a total light emitting period length which is the sum total of period lengths of light emitting periods arranged in a one-field period, including a step of setting period lengths of N light emitting periods, which are arranged in a one-field period, in response to the total light emitting period length such that the period lengths of the light emitting periods continue to keep a fixed ratio thereamong, N being equal to or higher than 3.07-05-2012
20100013872LIQUID CRYSTAL DISPLAY DEVICE - One embodiment of the present invention discloses a liquid crystal display device, and more particularly a transmissive-type liquid crystal display device including a backlight on a back of a panel. The liquid crystal display device includes a gray scale signal generating portion including an input image luminance level analyzing circuit that obtains luminance level distributions of respective colors based on RGB image signals, a correction coefficient calculating circuit that calculates correction coefficients based on the luminance level distributions of the respective colors, and an image signal correcting circuit that corrects luminance levels indicated by the RGB image signals, based on the correction coefficients; and an amount-of-backlight-light control circuit that adjusts amounts of lights emitted from LEDs for the respective colors based on the correction coefficients. In the correction coefficient calculating circuit, correction coefficients are calculated such that a difference in luminance level distribution between the RGB colors is reduced by corrections to luminance levels. In the amount-of-backlight-light control circuit, the amounts of lights emitted for the respective colors are adjusted such that changes in luminance levels and changes in the amounts of lights emitted are mutually cancelled out.01-21-2010
20110193897METHOD AND APPARATUS FOR CONTROLLING THE PARTITIONS OF A BACKLIGHT UNIT OF A 3D DISPLAY APPARATUS - A method and apparatus for controlling a backlight unit of a three-dimensional (3D) display apparatus receiving a 3D video sequence is provided. The method includes determining the image brightness level of the 3D video sequence displayed on a liquid crystal display (LCD) unit, for each of a plurality of partial regions of the LCD unit to which a plurality of sub-blocks of the backlight unit emit light; determining turn-on times of the plurality of sub-blocks of the backlight unit, based on the image brightness of each of the partial regions of the LCD unit; and determining turn-on periods of the plurality of sub-blocks of the backlight unit by synchronizing with a switching period between a set including a left visual point frame and a right visual point frame of the 3D video sequence.08-11-2011
20100073406Display Device, and Driving Method and Electronic Apparatus of the Display Device - The present invention provides a driving method of a display device for expressing gray scales with n bits (n is an integer) by dividing one frame into a plurality of subframes. By this driving method, pseudo contours which occur in displaying images by a time gray scale method can be reduced.03-25-2010
20130033531DISPLAY APPARATUS AND METHOD OF DRIVING THE SAME - A display apparatus includes an image data comparator which receives first, second and third color image data, extracts first, second and third image data from the first, second and third color image date by comparing gray scale values of the first, second and third color image date such that each of grayscale values of the second and third image data is greater than or equal to a gray scale value of the first image data, and compares the gray scale value of the first image data with a predetermined gray scale value, a driving circuit which generates a gray scale signal based on a result of the comparison and generates first and second color signals based on the first, second or third image data, and a pixel including a first sub-pixel which receives the gray scale signal, second and third sub-pixels which receive the first and second color signals, respectively.02-07-2013
20130038645METHOD FOR DRIVING PLASMA DISPLAY DEVICE, PLASMA DISPLAY DEVICE, AND PLASMA DISPLAY SYSTEM - Crosstalk is reduced to provide a high quality of image display when displaying a stereoscopic image on a plasma display panel. For this purpose, a driving method is provided in which one field is formed of a plurality of subfields each having an address period and a sustain period, image data is set to indicate light-emission/no light-emission for respective discharge cells for each of subfields in accordance with an image signal, and a field for right-eye for displaying an image signal for right-eye and a field for left-eye for displaying an image signal for left-eye are alternately repeated, which thereby displays the image on the plasma display panel. The method is such that, for a discharge cell displaying a gradation not smaller than a predetermined threshold, address operation is prohibited in the last subfield of each of the field for right-eye and the field for left-eye.02-14-2013
20130033530APPARATUS AND ASSOCIATED METHODS FOR DYNAMIC SEQUENTIAL DISPLAY UPDATE - A controller and method have been described for use in conjunction with a sequential display system including a display having a plurality of pixels. A series of update cycles is performed on the display to establish the grayscale value of each pixel for viewing on the display based on the pixel values for a video frame by selectively switching each pixel responsive to the update cycles such that a total number of the update cycles is less than the total number of pixel values of the frame. Statistical characterization of frame data can be the basis of the reduction of the number of update cycles.02-07-2013
20130027443LIGHT EMISSION DEVICE, LIGHT EMISSION DEVICE DRIVING METHOD, AND PROJECTOR - A light emission device includes: first and second clad layers sandwiching an active layer; a first electrode connected with the first clad layer; and second electrodes connected with the second clad layer, at least part of the active layer forms gain areas corresponding to the second electrodes, the gain areas extend from a first side to a second side of the active layer while inclined to a vertical of the first side, at least first and second gain areas form a set of gain areas and a plurality of sets are provided, the first and second gain areas in each set are disposed perpendicular to a direction extending from the first side to the second side, the second electrodes above the first gain areas are interconnected by a first common electrode, and the second electrodes above the second gain areas are interconnected by a second common electrode.01-31-2013
20120182333IMAGE PROCESSING APPARATUS AND IMAGE DISPLAYING APPARATUS - There is provided an image displaying apparatus in which a light-source luminance calculator calculates light-source luminance of the light emitted by a backlight based on pixel values of an input image, a cumulative light-emission amount calculator calculates a cumulative light-emission amount by summing up light-source luminance for an arbitrary period for which an image is displayed at a time before the input image is displayed, the cumulative light-emission amount is compared with a reference light-emission amount determined in advance, and if the difference between the cumulative light-emission amount and the reference light-emission amount is smaller than a reference, a light-source luminance correcting unit corrects the light-source luminance to a smaller value to obtain corrected light-source luminance corrected.07-19-2012
20120182332LIQUID CRYSTAL DISPLAY APPARATUS - The invention discloses a liquid crystal display (LCD) apparatus and a brightness/luminance holding ratio compensation method. A backlight module of the LCD apparatus may form a plurality of backlight shield-blocking periods in a display frame cycle or adjust output brightness gradually, for compensating a brightness/luminance bias caused by a transmittance variance of liquid crystal cell in the low refresh rate driving LCD apparatus, so as to avoid some abnormal display effects, such as screen flicker. Besides, the LCD apparatus has better energy efficiency by utilizing a low-voltage gray level driving method or saving the power consumption of the backlight module.07-19-2012
20130050300ELECTRO-OPTIC APPARATUS AND ELECTRONIC APPARATUS - A driving circuit perform first driving in which, in a first write period, a grayscale potential in an odd-numbered row is supplied to the pixels of a first group and, in a second write period, the grayscale potential is supplied to the pixels in an even-numbered row, and can perform second driving in which, in the first write period, the grayscale potential in the even-numbered row is supplied to the pixels of a second group and, in the second write period, the grayscale potential is supplied to the pixels in the odd-numbered row. In a right eye display period, the first driving is performed in a unit period U02-28-2013
20130050299DRIVING CIRCUIT, DISPLAY, AND METHOD OF DRIVING THE DISPLAY - There is provided a driving circuit driving pixels each including an electro-optical device and a memory, in a display. The driving circuit includes: a dividing section dividing one frame period into subblocks composed of subfields, the subfields corresponding to respective bits of gray-scale data and having period lengths commensurate with weights of the corresponding bits; and an ON-OFF period control section controlling a ratio of an ON period or an OFF period to one frame period by bringing an electro-optical device of the pixel into an on state or an off state according to a corresponding bit in each of the subfields. On a subblock by subblock basis, the ON-OFF period control section selects scan lines whose number is less by one than a number of the subfields included in a relevant subblock, and again selects one of the selected scan lines during a same subblock period.02-28-2013
20130050298DISPLAY AND OPERATING METHOD THEREOF - A display and an operating method thereof are provided. The display includes a display panel, a timing controller, and a plurality of source drivers. The source drivers are coupled to the timing controller and the display panel, and the source drivers are coupled to one another. The timing controller outputs a plurality of training packets to the source drivers. When the source drivers lock a clock of the timing controller according to the training packets, a lock signal is output to the timing controller. The timing controller outputs a plurality of color data packets and at least one latch signal to the source drivers based on the lock signal. The source drivers respectively output a plurality of pixel voltages to the display panel according to the latch signal. The training packets and the color data packets are serially transmitted to the source drivers.02-28-2013
20130050297Illumination Device Having User-Controllable Light Sequencing Circuitry - An illumination device comprises a plurality of light sources, light sequencing circuitry coupled to the light sources, a light guide structure for directing light from the plurality of light sources over a surface of a display screen to be illuminated, and a user interface for providing control input to the light sequencing circuitry. The light sequencing circuitry comprises a logic state machine responsive to the control input to select one of a plurality of available sequencing modes for the plurality of light sources, a code generator operative to generate output signals controlling respective ones of the light sources responsive to the selected one of the sequencing modes, and timing circuitry for defining timing intervals for processing of the control input by the logic state machine to determine the selected one of the sequencing modes and for generation of the corresponding output signals by the code generator.02-28-2013
20130070005ELECTRO-OPTICAL DEVICE AND ELECTRONIC APPARATUS - A driving circuit applies a voltage according to an assigned grayscale during each unit period of each display period, in such a manner that the applied voltage to a liquid crystal element during one of the unit periods and the applied voltage to the liquid crystal element during the other of the unit periods are opposite in polarity during each of the display periods, and an overdrive control unit enables the drive circuit to perform overdrive of a compensation grayscale according to a display image during the corresponding display period and to a display image during the immediately preceding display period during each of the first and second unit periods of each of the display periods, during each of the display periods.03-21-2013
20130088533DRIVING METHOD OF BLUE PHASE LIQUID CRYSTAL DISPLAY APPARATUS - A driving method of a blue phase liquid crystal (BPLC) display apparatus cooperated with a BPLC display apparatus having at least one data line, at least one scan line and at least one pixel comprises the steps of: transmitting a first gray level voltage to the pixel through the data line; transmitting a first recovery voltage to the pixel through the data line; and transmitting a first black frame insertion voltage to the pixel through the data line, wherein the absolute value of the first recovery voltage is higher than those of the first gray level voltage and the first black frame insertion voltage. The invention can diminish the dark-state leakage of the BPLC display apparatus.04-11-2013
20130088531DISPLAY AND OPERATING METHOD THEREOF - A display and an operating method thereof are provided. The display includes a display panel, a timing controller, and a plurality of source drivers. The timing controller has a plurality of signal output terminals The source drivers are coupled to the timing controller and the display panel. The timing controller outputs a plurality of training packets to the source drivers. When the source drivers lock a clock of the timing controller according to the training packets, the timing controller outputs a plurality of control packets and a plurality of color data packets to the source drivers. The source drivers respectively output a plurality of pixel voltages corresponding to the color data packets to the display panel according to the corresponding control packets. The training packets, the control packets, and the color data packets are serially transmitted to the source drivers via the signal output terminals.04-11-2013
20130088532DISPLAY DEVICE FOR DISPLAYING PLANAR IMAGE AND THREE DIMENSIONAL IMAGE - A display device includes a gray scale voltage generating unit configured to generate at least one gray scale voltage set, a timing control unit configured to convert an externally input image signal into a predetermined format to output a converted image signal, a data driving unit configured to convert the converted image signal into a data voltage based on the at least one gray scale voltage set, and a display panel configured to control a plurality of sub pixels based on the data voltage, where the display panel controls the plurality of sub pixels using one gamma setting when the externally input image signal is a three-dimensional image signal, and controls the plurality of sub pixels using different gamma settings when the externally input image signal is a planar image signal.04-11-2013
20130088534Display Device, Method for Driving Display Device, and Electronic Apparatus - A display device includes an illumination unit that delivers a first light, a second light and a third light. The display also includes a driving circuit that supplies a pixel with a first data signal for displaying a first image by illuminating the first light, the driving circuit supplying the pixel with a second data signal for displaying a second image by illuminating the second light, the driving circuit supplying the pixel with a third data signal for displaying a third image by illuminating the third light.04-11-2013
20130057600DISPLAY APPARATUS AND DRIVING METHOD THEREOF - A display device which includes pixels, a plurality of gate lines, a plurality of data lines, a gate driver configured to drive the plurality of gate lines, a data driver configured to drive the plurality of data lines, and a timing controller configured to control the gate driver and the data driver. The timing controller receives a first image signal and outputs a second image signal to the data driver. The timing controller sequentially outputs a boosting signal and the first image signal as the second image signal. The boosting signal is based on the first image signal and the previous first image signal.03-07-2013
20110057969BACKLIGHT CONTROL CIRCUIT - A backlight control circuit includes a logic unit, a drive unit, a decoder, a current setting unit, a current stabilizer, a pulse width modulated generator, a plurality of light sources, and a control unit. The control unit controls the brightness of each light source according to the pulse width modulated signals from the pulse width modulated generator. The logic unit sends an enable signal to the control unit. The drive unit sends a first control signal to the decoder. According to a decoded signal from the decoder, the current setting unit sends a second control signal and an output voltage to the current stabilizer, the current stabilizer generates a steady current. According to the second control signal, the control unit selectively provides the steady current to the corresponding light source.03-10-2011
20120306944CONTROL OF LIGHT-EMITTING-DIODE BACKLIGHT ILLUMINATION THROUGH FRAME INSERTION - System(s) and methode s) are provided to regulate backlighting in a light emitting diode (LED)-based display through a sequence of alternate pulse-width-modulation (PWM) frame or sub-frame insertions. Alternate PWM frames or sub-frames can be black or non-black. A plurality of pixels in the display is partitioned into at least one zone including one or more rows of pixels; the at least one zone determines sub-frame period based on refresh frequency of the display. A sequence of alternate PWM sub-frames includes at least one alternate sub-frame and at least one normal sub-frame. Alternate PWM frames or alternate PWM sub-frames include a phase delay during which a backlight unit is turned off, and a PWM sequence in which the backlight unit is turned on with a finite duty cycle for the remainder of the PWM frame or sub-frame.12-06-2012
20090267974METHOD FOR DRIVING PLASMA DISPLAY PANEL - A plasma display device and a method for driving a Plasma Display Panel (PDP), which can reduce power consumption without causing display malfunction or reducing image quality, are provided. When the input of an image signal is stopped or when an input image signal is in an entirely-black image state, the application of a drive pulse for driving the PDP is stopped. Here, when the input of the image signal is resumed or when the input image signal switches from the entirely-black image state to a normal image state, the absolute value of a peak potential of the drive pulse or the pulse width thereof is increased to increase the strength of discharge until a predetermined period elapses after the resumption or switching and then the absolute value of a peak potential of the drive pulse or the pulse width is returned to a normal absolute value or a normal pulse width.10-29-2009
20130063502DISPLAY DEVICE AND METHOD OF DRIVING THE SAME - A display device includes a color converter, a timing controller, and a display panel. The color converter converts R, G, and B data into R′, G′, B′, and W′ data. The R′, G′, B′, and W′ data includes first component data and second component data. The timing controller provides the first component data to a data driver during a first driving time and provides the second component data to the data driver during a second driving time. The data driver provides gray level display voltages corresponding to the first component data and the second component data to a data line, and the display panel displays the R′, G′, B′, and W′ data in response to the gray level display voltage.03-14-2013
20120194577DRIVING METHOD FOR DISPLAY DEVICE - A liquid crystal display includes pixels each having an switching element, drain drivers and gate drivers for operating the switching elements and the pixels, and drain lines and gate lines supplying signals from the drain drivers and the gate drivers to the switching elements being formed on one of a pair of substrates sandwiching a liquid crystal layer. Wiring lines are formed on the one of a pair of substrates for transferring display data signals and a clock signal to the gate drivers.08-02-2012
20130162701SYSTEM AND A METHOD OF ADAPTIVELY CONTROLLING AN LED BACKLIGHT - The present invention is directed to a system and method of adaptively controlling a light-emitting diode (LED) backlight. A content analyzer analyzes luminance of image data to be displayed on a display panel. An LED current controller controls illumination of the LED backlight via an LED driver according to an analysis result of the content analyzer. The LED current controller over-drives the LED backlight such that a drive current flowing in the LED backlight is above a normal current, when the analysis result of the content analyzer indicates that the luminance of image data is above a predetermined value.06-27-2013
20090046114APPARATUS AND METHOD FOR DRIVING AN ELECTROPHORETIC DISPLAY - An apparatus for driving an electrophoretic display comprising a data driver applying data voltages to a plurality of pixels where electrophoretic particles are respectively disposed includes a memory storing gray information, level information of data voltages, and application time information of the data voltage, and a signal controller, wherein the signal controller reads the gray information, the level information of the data voltage and the application time information of the data voltage stored in the memory to apply an output image signal to the data driver, again stores the updated application time information of the data voltage to the memory by counting the application time information of the data voltage, compares the gray information stored in the memory with the gray information newly input from the external device, and when the gray information stored in the memory and the gray information nexly input are different from each other, again stores the level information of the data voltage and the application time information of the data voltage that are newly updated in the memory based on the gray information that is newly input.02-19-2009
20120113169Method for Displaying Stereoscopic Image and Display Apparatus for Performing the Same - A method of displaying a stereoscopic image includes outputting a left-eye image to a first and a second display block of a display panel during an N-th frame. Light is provided to the first display block during a first period of the N-th frame and light is provided to the second display block during a second period of the N-th frame. A right-eye image is output to the first and second display blocks of the display panel during an M-th frame. Light is provided to the first display block during a first period of the M-th frame and light is provided light to the second display block during a second period of the M-th frame.05-10-2012
20120113168Stereoscopic image display device and driving method thereof - A stereoscopic image display device includes a scan driver, a data driver, a light emission control driver, a display unit including a plurality of pixels, and a controller controlling the scan driver, the data driver, and the light emission control driver. The controller generates image data signals corresponding to a left-eye image display period, a right-eye image display period, and a black image display period during one frame and supplies the image data signals to the data driver. The black image display period, in which a black image according to the black data signal is displayed, and a shutter stabilization period, in which a left eye glass and a right eye glass of shutter spectacles are opened/closed, overlap each other between the left-eye image display period and the right-eye image display period.05-10-2012
20120236048LIQUID CRYSTAL DISPLAY AND CONTROLLER AND DRIVING METHOD OF PANEL THEREOF - A liquid crystal display (LCD), a controller and a driving method of a panel thereof are provided. Before the controller drives each data line, the driving polarity of the data lines is adjusted according to the display property of the sub-frame data signal. A first inversion driving method is employed for adjusting the data lines when the display property of the sub-frame data signal is a black frame, and a second inversion driving method is employed for adjusting when the display property of the sub-frame data signal is a color frame. Accordingly, power consumption can be lowered during the process of driving pixels, thereby achieving the purpose of power saving while not affecting the display quality.09-20-2012
20110043551IMAGE PROCESSING APPARATUS, DISPLAY SYSTEM, ELECTRONIC APPARATUS, AND METHOD OF PROCESSING IMAGE - An image processing apparatus that performs display control of an image displayed on a display unit, includes a first control circuit for controlling image data of a frame in question or a display timing control signal corresponding to the image data so as to display each pixel forming the image with different brightness at given intervals, and a second control circuit for controlling the image data or the display timing control signal by different control from that by the first control circuit so as to display each pixel forming the image with different brightness at given intervals, wherein the first control circuit and the second control circuit control image data of an identical frame or a display timing control signal corresponding to the image data.02-24-2011
20120306946DEVICE FOR CONTROLLING LIGHT-EMITTING DIODES WITH VERY HIGH LUMINANCE RANGE FOR VIEWING SCREEN - The general field of the invention is that of devices for controlling luminance of lighting devices comprising light-emitting diodes. The control device is driven by a cyclic input signal of determined period, each period comprising an activation time representative of a determined luminance level. The control device comprises analogue electronic means generating a second control signal for the intensity of the electric current passing through the light-emitting diodes, the amplitude of the second control signal being an increasing function of the activation time in such a way that the combination of the cyclic input signal and of the second signal applied to the light-emitting diodes gives a greater luminance range than the range of the cyclic input signal.12-06-2012
20110279490IMAGE DISPLAY DEVICE - An image display device comprises a liquid crystal display panel, panel driving circuits, a backlight configured to include a plurality of light source blocks, and a controller configured to modulate input data to generate image data synchronized with N multiple frame frequency, control the panel driving circuits such that same image data are displayed every two consecutive frame periods, control the light source blocks to be sequentially turned on during a light source scanning period, and control the light source blocks to be simultaneously turned off during a light source blinking period between neighboring light source scanning periods.11-17-2011
20110279492ORGANIC LIGHT EMITTING DISPLAY AND CONTROL SIGNAL GENERATING CIRCUIT OF ORGANIC LIGHT EMITTING DISPLAY - A signal generating circuit generating an output signal corresponding to a controlling input, the signal generating circuit including a rising path increasing the output signal during a rising period in synchronization with a time that the controlling input is increased, and a falling path decreasing the output signal during a falling period in synchronization with a time that the controlling input is decreased, wherein the rising period and the falling period are different from each other.11-17-2011
20110279491DRIVING METHOD OF BISTABLE DISPLAY DEVICE - An exemplary driving method is adapted for a bistable display device including a pixel array. The pixel array includes a plurality of first pixels and a plurality of second pixels arranged in a predetermined manner. The driving method includes the following steps of: during a first time period, providing the first pixels with a first pixel voltage for black insertion and providing the second pixels with a second pixel voltage different from the first pixel voltage; during a second time period following the first time period, providing the first pixels with the second pixel voltage for white insertion and maintaining the second pixels provided with the second pixel voltage for white insertion; and during a third time period following the second time period, initiating the first pixels to display a gray scale image and providing the second pixels with the first pixel voltage for black insertion.11-17-2011
20100171776PICTURE DISPLAY DEVICE - A picture display device including a picture display section for projecting an input picture signal; a light source for visualizing a picture in the picture display section; a moving picture detecting section for outputting a scanning line movement determination signal for every scanning line based on a movement amount of a picture signal for every scanning line; a PWM pulse generating section for controlling flashing of the light source; and a PWM control section for outputting a moving image specifying signal that specifies a moving image area included in a frame based on the scanning line movement determination signal to control the PWM pulse generating section. The PWM control section controls the PWM pulse generating section in a blinking mode by turning off the light source in a period for scanning the moving image area including a scanning line having a largest movement amount.07-08-2010
20120287181PLASMA DISPLAY DEVICE AND METHOD FOR DRIVING PLASMA DISPLAY PANEL - The image display quality of the plasma display apparatus is improved. For this purpose, the plasma display apparatus corrects the number of generated sustain pulses in each subfield using a first correction coefficient that is read from look-up table (11-15-2012
20080198183INVERTER FOR LIQUID CRYSTAL DISPLAY - An inverter of driving a light source for a display device is provided. The inverter includes a temperature sensor sensing a temperature and generating an output voltage based on the sensed temperature, a buffer generating an output signal having a state depending on the output voltage of the temperature sensor, an oscillator generating an oscillating signal having a frequency depending on the state of the output signal of the buffer, and an inverter performing a switching operation in response to the oscillating signal from the oscillator. Therefore, the inverter increases the voltage applied to the light source when the temperature near the light source is lower than a predetermined temperature since the frequency of the oscillating signal is increased.08-21-2008
20090189925LIQUID CRYSTAL DISPLAY AND DRIVING METHOD THEREOF - A liquid crystal display (LCD) and a driving method thereof are provided. The driving method includes the steps of: transmitting video data to the LCD according to a first frequency, and processing the video data according to a first gamma look-up table to obtain a bright region image; transmitting the video data to the LCD according to the first frequency, and processing the video data according to a second gamma look-up table to obtain a dark region image; and stacking the bright region image and the dark region image in sequence so as to display an image displayed on an LCD panel of the LCD.07-30-2009
20110128312PULSE WIDTH MODULATION SIGNAL GENERATING DEVICE, IMAGE DISPLAY APPARATUS INCLUDING PULSE WIDTH MODULATION SIGNAL GENERATING DEVICE, AND PULSE WIDTH MODULATION SIGNAL GENERATING METHOD - A pulse width modulation signal generating device which generates a pulse width modulation signal for modulating laser beam according to image data includes: a cycle signal output circuit which outputs a cycle signal having a cycle corresponding to a drawing rate for drawing the image data by the laser beam; and a pulse width modulation circuit which receives supply of the image data and the cycle signal and modulates a pulse wave having a cycle determined by the cycle signal by changing duty ratio of the pulse wave based on the image data to produce the pulse width modulation signal.06-02-2011
20100013874CONTROLLED GAP STATES FOR LIQUID CRYSTAL DISPLAYS - The present invention relates to a bistable matrix-addressable display element comprising a substrate, a bistable electrically modulated imaging layer having a reflection maximum, at least one conductor, and at least one field-spreading layer between said bistable electrically modulated imaging layer and said at least one conductor, wherein said field-spreading layer has a sheet resistance (SER) of less than 1001-21-2010
20110069098DEVICE AND METHOD FOR CONTROLLING BRIGHTNESS OF ORGANIC LIGHT EMITTING DIODE DISPLAY - A device and a method for controlling brightness of an OLED display device are disclosed.03-24-2011
20120105515LIQUID CRYSTAL DISPLAY DEVICE - In an LCD device, picture quality luminance is controlled through the combination of pulse-width modulation (PWM) system and current value control system, reducing the electrical power consumption associated with turning on an LED. In the LED backlight, the light emitting luminance of the LED is controlled by both PWM and also by current value control, which selects the value of the current supplied to the LED from a plurality of set values. At least one of the plurality of set values is a predetermined current value at which duty reaches a maximum value at the maximum luminance value used in a specified picture quality mode of the picture quality modes established in the liquid crystal display device. In the aforementioned specified picture quality mode, the greatest luminance value to be used is smaller than at least the greatest luminance value used in other specified picture quality modes.05-03-2012
20110285761Control Apparatus Used in Three-Dimensional Display Apparatus and Associated Three-Dimensional Glasses - A control apparatus for controlling a three-dimensional (3D) display apparatus includes: an image processing unit to receive an image source signal and convert the image source signal to an interval signal. The interval signal is defined as a first timing interval and a second timing interval. A backlight control device, coupled to the image processing unit, receives the interval signal and generates a plurality of backlight control signals according to the interval signal. A backlight device, coupled to the backlight control device, receives the plurality of backlight control signals and provides a lighting source to a display device during the first timing interval and/or the second timing interval according to the plurality of backlight control signals.11-24-2011
20120098877ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE - Disclosed in an organic light emitting diode display device including: a driving element for controlling a driving current, a first TFT that switches a current path between the first node and the second node, a second TFT that switches a current path between a data line and a third node, a third TFT that switches a current path between the third node and a reference voltage input terminal, a fourth TFT that switches a current path between the second node and a fourth node, an organic light emitting diode connected between the fourth node and a ground voltage input terminal to emit a light by the driving current, a storage capacitor connected between the first node and the third node, and a variable capacitor connected between the first node and the first gate line and having a capacity changed when the first TFT is turned on and off.04-26-2012
20120154464Techniques for Quantum Dots - Techniques for configuring light conversion materials such as quantum dots in a display system are described. A display system includes light source components that emit a first light. The display system further includes a light converter illuminated by the first light. The light converter converts the first light into second light comprising one or more color components to support a specific color gamut. The second light forms, based at least in part on image data for images to be rendered, an emission pattern that varies with space and time.06-21-2012
20110292099LIQUID CRYSTAL DISPLAY AND METHOD OF DRIVING THE SAME - A liquid crystal display and a method of driving the same are disclosed. The liquid crystal display includes a liquid crystal display panel on which data lines and gate lines cross each other, a data driving circuit that converts data of an input image into positive and negative analog data voltages and outputs the data voltages to the data lines, a gate driving circuit sequentially supplying a gate pulse synchronized with the data voltages to the gate lines, and a timing controller that supplies the input image data to the data driving circuit, controls an operation timing of each of the data driving circuit and the gate driving circuit, compares the input image data with a previously stored reference data pattern, and decides whether or not the input image data is the same as the reference data pattern.12-01-2011
20100265280DRIVING CIRCUIT AND GRAY INSERTION METHOD OF LIQUID CRYSTAL DISPLAY - A driving circuit and a gray insertion method of a liquid crystal display (LCD) are described. In the gray insertion method, whether a dynamic frame or a static frame display by the LCD is determined. When the LCD displays the dynamic frame, a gray insertion level of a frame of the display and a duty cycle of a pulse width module (PWM) signal are increased synchronously, wherein the PWM signal drives a back light module of the display. When the LCD displays the static frame, the gray insertion level of a frame of the display and the duty cycle of the PWM signal are decreased synchronously. As a result, a motion blur on LCD is reduced and luminance of a display frame is maintained.10-21-2010
20090256868Time-Overlapping Partial-Panel Updating Of A Bistable Electro-Optic Display - A method for updating two or more regions of the display area of a bistable, electro-optic display device comprises selecting at least one first waveform for at least one pixel of a first region; (b) selecting at least one second waveform for at least one pixel of a second region; (c) updating the first region by generating and providing the first waveform to the at least one pixel of the first region; and (d) updating the second region by generating and providing the second waveform to the at least one pixel of the second region, wherein the first and second updates at least partially coincide in time. The first waveform is selected from a first drive scheme for use in a first update mode having a first period. The second waveform is selected from second a drive scheme for use in a second update mode having a second period.10-15-2009
20090289967DUTY CYCLE CALCULATION AND IMPLENTATION FOR SOLID STATE ILLUMINATORS - A display uses x illuminator systems to produce x primary colors and y overlap colors, which are combinations of primary colors, to illuminate a spatial light modulator in a display system. A first set of n duty cycles for the x primary colors over a frame is provided, wherein the display system can select any one of the duty cycles to produce a desired white point. A second set of n duty cycles of x+y colors over a frame corresponding to the first set of duty cycles is determined, where the second set of duty cycles are generated responsive to a specified desired allocation of the frame to the y overlap colors, such that each of the overlap colors can be displayed from a dark shade to a bright shade while maintaining a constant color point.11-26-2009
20080266333HYBRID COLOR SYNTHESIS FOR MULTISTATE REFLECTIVE MODULAR DISPLAYS - A display device including a plurality of optical modulators and a plurality of filter elements on a reflective side of the plurality of optical modulators is provided. The plurality of optical modulators includes a first set of optical modulators and a second set of optical modulators. Each optical modulator of the plurality of optical modulators is configured to be selectively switched among at least a first state, a second state, and a third state. Each state has a different spectral reflectance. The plurality of filter elements includes a first set of filter elements corresponding to the first set of optical modulators and a second set of filter elements corresponding to the second set of optical modulators. The first set of filter elements has a different spectral transmittance than the second set of filter elements.10-30-2008
20100079507PIXEL CIRCUIT DRIVING METHOD, LIGHT EMITTING DEVICE, AND ELECTRONIC APPARATUS - Provided is a method of driving a pixel circuit including a light emitting element and a driving transistor which are connected in series, and a storage capacitor disposed between the path between the light emitting element and the driving transistor and the gate of the driving transistor, the method including the steps of: supplying a driving signal, of which the time rate of change of the potential varies over time, to a gate of the driving transistor; stopping the supply of the driving signal at a point in time which is set to be variable in accordance with a gradation specified for the pixel circuit; and supplying a driving current corresponding to an open circuit voltage of the storage capacitor to the light emitting element.04-01-2010
20100085392TIMING CONTROL CIRCUIT - A reception interface circuit receives a luminance signal for each of multiple colors and a clock signal as input signals. A timing control unit receives the luminance signals received by the reception interface circuit, and controls the timing and format thereof such that they match drivers. A transmission interface circuit transmits the signals generated by the timing controller IC to the drivers. The timing controller IC is included within a rectangular package as a built-in component. The reception interface circuit is arranged on a first short side of the package. The transmission interface circuit is arranged on a second short side of the package. The image data is input via input terminals arranged on the first short side. The output signals of the transmission interface circuit are output via output terminals arranged on the second short side.04-08-2010
20120033000DISPLAYING APPARATUS - To achieve both suppression of a flicker and high moving image performance, there is provided a displaying apparatus which comprises plural pixels each including a light-emitting element and a driving transistor for supplying a current to the light-emitting element according to gradation display data, a data line, and a light emission period control line, in which the gradation display data according to a video signal is supplied from the data line to each pixel for one frame, and a light emission period control signal is supplied from the light emission period control line, and which controls light emission of the light-emitting element based on the light emission period control signal. Here, a light emission period of one frame is a period during which the light-emitting element intermittently emits light and is a period in which luminance of the light emission period is gradually decreased.02-09-2012
20100091050Hierarchical Multicolor Primaries Temporal Multiplexing System - This invention describes an apparatus, methods and a system for high speed hierarchical multiplexing the native color primaries of SSL-based display systems in order to improve color quality and stability as well as brightness and the efficiency of the display system.04-15-2010
20090244113Display device with dynamic color gamut - The specification and drawings present a new method, apparatus and software product for dynamically adjusting a color gamut of a display (e.g., a field sequential color display) and further adjusting a luminance of the display in an electronic device by adjusting and turning on field duties of primary colors. During each color field, the other primary colors of light sources supporting the display can be turned on at their respective fractions of their color field. These fractions can be continuously tunable in order to control the color coordinate of each primary color dynamically thus adjusting the color gamut and the luminance of the display.10-01-2009
20110199403COLOR DISPLAY DEVICE - A color display device includes a plurality of pixel display elements and a driving circuit. Each of the pixel display elements includes a plurality of sub-pixel display elements. Each of the sub-pixel display elements includes first and second supports, first and second electrodes attached to inner faces of the first and second supports, respectively, a solution disposed between the first and second electrodes, and particles dispersed in the solution. The particles of the sub-pixel display elements of a same one of the pixel display elements are electrically polarizable by voltage signals supplied by the driving circuit, the voltage signals having the same predetermined driving frequency.08-18-2011
20110199404LIQUID CRYSTAL DISPLAY DEVICE AND ELECTRONIC DEVICE - It is an object to suppress deterioration of a displayed still image which is caused when a refresh rate is reduced. A liquid crystal display device includes a display portion controlled by a driver circuit and a timing controller for controlling the driver circuit. An image signal for displaying a still image is supplied to the timing controller. By the timing controller, a refresh rate in displaying an image corresponding to an image signal on the display portion reduced as a gray level number of the image signal is smaller.08-18-2011
20090278869Display Device - A one-frame interval is divided into a light field interval and a dark field interval. In the light field interval, the display data of high tones is displayed, while in the dark field interval, the display data of low tones is displayed. This divisional display makes it possible to pseudoly display the tones of the input display data. Then, in a case that the tones of the input display data is on the lower tone side, the display data of the dark field is set to the corresponding minimum tone with the minimum luminance, while in a case that the tone of the input display data is on the higher tone side, the display data of the light field is set to the corresponding maximum tone with the maximum luminance.11-12-2009
20090278870Method of Displaying Pixels Using Fractional Pulse Width Modulation - A method for displaying a pixel on a display system using a series of digital pulses obtained by first determining a minimum pulse width (MPW) capable of displaying a pixel on the display system and then using a series of pulses for the display of the pixel, where at least some of the pulses have different pulse widths, and where at least one pulse has a width that is a non-integer multiple greater than 1 of the MPW. In this way, the number of unique intensity levels of the pixels of the displayed image can be increased and display resolution is improved. Even better resolution is obtained using two different, alternating series of digital pulses.11-12-2009
20090289968DISPLAY DEVICE - A display device in which the image quality is improved by control of the peak luminance. A plurality of instantaneous luminances are expressed by performing signal writing to each pixel plural times within one frame period. The gray level is expressed by controlling time integration levels of the plurality of instantaneous luminances. Moreover, the time integration level is increased as the level of gray level data of the pixel is higher, and the time integration level is increased as the average value of gray level data of an image to be displayed is smaller.11-26-2009
20110169882ADJUSTMENT OF DISPLAY ILLUMINATION TIMING - A display device adjusts the operational timing of the illumination source relative to pixels of the display device. Grayscale may be generated in the pixels using pulse width modulation. The operational timing may be adjusted based on the temperature of the display device. The display device may be a liquid crystal display device and the operational timing of the illumination source may be adjusted to compensate for variation in the response time of the liquid crystal material based on temperature.07-14-2011
20100201723Transflective Liquid Crystal Display - The apparatus, methods, system and devices of the present invention provides transflective LCD system structure wherein each pixel is composed of at least three reflective sub-pixels and at least one transmissive sub-pixel. The reflective sub-pixels have a color filter layer for displaying color reflective images and the transmissive sub-pixel it is driven by color sequential imaging method for displaying a color transmissive image. The configuration of the sub-pixels and the location of the sub-pixel electronics increases the aperture ratio of both transmissive sub-pixel and reflective sub-pixel to improve the image brightness and lower the overall power consumption of the device.08-12-2010
20100201722DISPLAY DEVICE AND CONTROL METHOD THEREOF - A display device includes a luminescence element. A power line provides the luminescence element with an electric current. A capacitor accumulates a driving voltage corresponding to a data voltage. A driver flows the electric current according to the driving voltage accumulated in the capacitor through the luminescence element via the power line. A controller is configured to set a reverse bias voltage and an application time period according to an amount of luminescence produced by the luminescence element, and to determine luminance levels in luminescence periods. The controller sets the reverse bias voltage and the application time period according to a peak luminance of the luminance levels when a difference between the peak luminance and an average luminance of the luminance levels exceeds a predetermined threshold, and applies the reverse bias voltage for the application time period within an OFF period of the data voltage for removing an electric charge accumulated in the luminescence element. The OFF period is within one of the luminescence periods.08-12-2010
20090167791Image Display Method, Image Display Device, Image Display Monitor, and Television Receiver - In one embodiment of the present invention, when an image is displayed in an image display device which has a frequency of 50 to 70 Hz in one frame period, a control LSI is set so that, in the case where the frame average luminance of a pixel is in the range of 150 [cd/m07-02-2009
20100060676Liquid crystal display - The present invention provides a liquid crystal display including a liquid crystal display panel and a drive section performing divisional drive operation which includes first and second drive operations. The first drive operation performs a driving process with a first drive voltage higher than an original application voltage, and the second drive operation performs a driving process with a second drive voltage lower than the original application voltage. The liquid crystal display panel includes one or more pixel electrodes each having a plurality of slits, and one or more alignment control electrodes provided in one or more regions corresponding to one or more of the slits of the pixel electrode. The alignment control electrode configures a capacitive element in cooperation with the pixel electrode. Electric potential of the pixel electrode is lower than that of the alignment control electrode.03-11-2010
20100060675METHOD OF DRIVING A DISPLAY APPARATUS, AND DISPLAY APPARATUS AND TIMING CONTROLLER FOR PERFORMING THE METHOD - A method of driving a display apparatus for an embodiment comprises a light source module divided into a plurality of light-emitting blocks to provide light to a display panel, a local dimming driving part driving the light-emitting blocks, and a timing controller controlling the driving timing of the display panel and the local dimming driving part. The timing controller transmits a luminance pulse having representative grayscale values of an image corresponding to the light-emitting blocks and a synchronization signal including information of a start position of the representative grayscale values to the local dimming driving part. The local dimming driving part drives the light-emitting blocks using the representative grayscale values obtained from the luminance pulse.03-11-2010
20120293572DISPLAY DEVICE - A display device includes: a light emission control part which allows a light source to emit the light having one of the plural different main wavelengths in each of plural sub frames; a display panel which controls the transmission of light in each pixel; and a display control part which controls the display panel corresponding to a gray level value with respect to the each pixel, wherein the light emitting control part performs the light emission of light having a first main wavelength in a first sub frame in accordance with a light emission amount weighted based on a time for calculation including a first interval which is a interval between the first sub frame where the first main wavelength is emitted and a second sub frame where the first main wavelength is emitted after the first sub frame.11-22-2012
20110205260LIQUID CRYSTAL DISPLAY DEVICE AND DRIVING METHOD THEREOF - A liquid crystal display device includes a plurality of gate lines, a plurality of main data lines, a plurality of sub-data lines, a switch circuit and a pixel array. The gate lines are configured to transmit a plurality of gate driving signals, while the data lines and sub-data lines are configured to transmit a plurality of data driving signals. The switch circuit controls the paths through which the data driving signals are transmitted to the sub-data lines. The pixel array includes a plurality of first and second pixel units. Each first pixel unit displays images according to the gate driving signal received from a corresponding gate line and the data driving signal received from a corresponding main data line. Each second pixel unit displays images according to the gate driving signal received from a corresponding gate line and the data driving signal received from a corresponding sub-data line.08-25-2011
20120044282Method for Reducing Ripple Noise of a Display Image - The present invention discloses a method for reducing ripple noise on the image of a display. The steps of the method include: (a) providing a first potential signal to a backlight module by an inverter; (b) resetting the inverter; (c) providing a second potential signal to the backlight by the inverter, wherein the phase difference between the first potential signal and the second potential signal is 180 degrees; (d) resetting again the inverter; and (e) repeating the steps (a) to (d) Consequently, the ripple noise present on the display would be effectively reduced by the alteration of the bright areas and dark areas on the display panel in conjunction with the persistence of vision of the user's eyes.02-23-2012
20100265281IMAGE DISPLAY DEVICE - The image display device includes a light source section having light emitting subsections; a display panel; and a display control section performing a control. An input frame image is decomposed into a plurality of field images and the field images are displayed in a field sequential manner. A differential image for each of the three primary-color components is obtained by subtracting a common luminance portion from the subsection-drive frame image. The differential image and a common image configured of the common luminance portion are sequentially outputted to the display panel in a time-divisional manner. In the first field period for outputting the differential image of a primary color component, corresponding primary color light is emitted, and in a second field period for outputting the common image, multiple kinds of primary color light, corresponding to the primary-color components configuring the common luminance portion, are emitted together.10-21-2010
20090079768METHOD OF CONTROLLING BACKLIGHT MODULE, BACKLIGHT CONTROLLER AND DISPLAY DEVICE USING THE SAME - A method of controlling a backlight module, a backlight controller and a display device using the same are provided herein. The method includes receiving an image having a plurality of regions, wherein the image is displayed by a plurality of color backlights. Next, a feature in a first region of the image and the feature in a second region of the image are analyzed to obtain a spatial weight, wherein the first region and the second region of the image is one of the regions and the second region is neighboring to the first region. Next, the feature in the first region of the image and the feature in the corresponding first region of the preciously received image are analyzed to obtain a temporal weight. One of the color backlights provided to the first region of the image is adjusted according to the spatial weight and the temporal weight.03-26-2009
20110267387CIRCUIT AND METHOD FOR DRIVING A LIGHT EMITTING DIODE FOR A BACKLIGHT, AND BACKLIGHT DRIVING APPARATUS USING THE SAME - A circuit and method for driving a light emitting diode for a backlight, and a backlight driving apparatus using the same is provided. A circuit for driving a light emitting diode (LED) for a backlight includes a filtering unit configured to receive a pulse width modulation (PWM) signal and remove noise of a predetermined band, a duty stabilization unit configured to stabilize a duty of a PWM signal filtered by the filtering unit, a dimming signal generation unit configured to generate a dimming signal based on a PWM signal stabilized by the duty stabilization unit, and an LED driving unit configured to drive the LED for the backlight based on the dimming signal generated by the dimming signal generation unit.11-03-2011
20120069065ELECTRONIC PAPER DISPLAY DEVICE - There is provided an electronic paper display device. The electronic paper display device includes a substrate including a plurality of cells formed by a plurality of barrier ribs; an upper electrode and a lower electrode respectively formed on an upper surface and a lower surface of the substrate; and an electronic paper display element mounted in each of the cells and having optical and electrical anisotropy. Here, torque applied to the electronic paper display element is controlled to express grayscale.03-22-2012
20110141166LOCAL DIMMING DRIVING METHOD AND DEVICE OF LIQUID CRYSTAL DISPLAY DEVICE - Disclosed herein is a local dimming driving method and device of a Liquid Crystal Display (LCD) device, which is capable of preventing color change due to gray scale saturation when data is compensated while enabling local dimming. The local dimming driving method of the LCD device includes detecting maximum values per pixel from input image data, analyzing the maximum values per pixel on a block-by-block basis, and determining local dimming values per block according to the analysis result, calculating a first gain value using the local dimming values per block, calculating a maximum gain value per pixel using the maximum value per pixel as a second gain value, selecting a smaller value of the first and second gain values as a final gain value, compensating the input image data using the final gain value, and controlling luminance of a backlight unit on the block-by-block basis using the local dimming value per block.06-16-2011
20130215160DISPLAY APPARATUS AND METHOD OF DRIVING THE SAME - A display apparatus includes pixels connected to gate lines and data lines crossing the gate lines, a data driver which drives the data lines, a gate driver which drives the gate lines, a timing controller which controls the data driver and the gate driver in response to an image signal and a control signal and outputs a first kickback signal and a second kickback signal, and a voltage generator which outputs a first gate-on voltage and a second gate-on voltage in response to the first and second kickback signals to drive the gate lines. The gate driver drives a first group of gate lines in response to the first gate-on voltage and drives a second group of the gate lines in response to the second gate-on voltage.08-22-2013
20110227969Image Projection through grid scanning of a modulated light beam using mirrors - In various embodiments, a method for projecting at least one light beam is provided. The method may include providing at least one light beam; and setting a time base of a processor configured to control the at least one light beam as a function of a deflection of the at least one light beam.09-22-2011
20090102867DISPLAY METHOD - A display method for a color sequential display to display a frame in a frame time is provided. The frame time includes a first sub-frame time and a second sub-frame time, and the frame includes a first sub-frame and a second sub-frame. The display method includes displaying the first sub-frame in the first sub-frame time which is divided into a first liquid crystal (LC) response time and a first optical display time. In addition, the second sub-frame is displayed in the second sub-frame time which is divided into a second LC response time and a second optical display time. The scales of the first sub-frame time and the second sub-frame time are different from each other according to a default value. The display method improves the optical performance of the color sequential display.04-23-2009
20090244112DISPLAY APPARATUS AND METHOD THEREOF - A display apparatus and method thereof are provided in order to provide a high quality image. The display apparatus includes a driving unit which drives light sources, and a controller which controls the driving unit. Therefore, it is possible to reduce motion blur and flicker and maximize the gray level difference, so that a user may be provided with a clear image.10-01-2009
20100013871BACKLIGHT CONTROLLER, DISPLAY DEVICE USING THE SAME AND METHOD FOR CONTROLLING BACKLIGHT MODULE - A backlight controller, a display device using the same and a method for controlling a backlight module are provided. The backlight controller includes a temporal weighting module and a dimming controlling module. The temporal weighting module calculates a weight sum of a first backlight luminance provided in a current frame and a target backlight luminance to serve as an adjusted backlight luminance. The target backlight luminance is obtained according to an image content of the current frame. The dimming controlling module increases or decreases the adjusted backlight luminance by a step value according to the target backlight luminance and generates a second backlight luminance provided in a next frame. Therefore, a backlight luminance of the backlight module not only can be smoothly adjusted to the target backlight luminance at high speed for avoiding backlight flicker, but also can be adaptive to image content for saving electric power consumption.01-21-2010
20120105516PLASMA DISPLAY PANEL DRIVING METHOD AND PLASMA DISPLAY DEVICE - An image display region is divided into a plurality of partial display regions, the scan electrodes included in each partial display region are classified into two scan electrode groups: a scan electrode group formed of the odd-numbered scan electrodes; and a scan electrode group formed of the even-numbered scan electrodes. Scan pulses are sequentially applied to one scan electrode group, and then scan pulses are sequentially applied to the other scan electrode group. The pulse width of the scan pulses applied to the first through predetermined-number-th scan electrodes belonging to the one scan electrode group is set to be longer than the pulse width of the scan pulses applied to the remaining scan electrodes belonging to the one scan electrode group. The pulse width of the scan pulses applied to the first through predetermined-number-th scan electrodes belonging to the other scan electrode group is set to be longer than the pulse width of the scan pulses applied to the remaining scan electrodes belonging to the other scan electrode group.05-03-2012
20120105514Liquid Crystal Driving Circuit And Liquid Crystal Display Device - A liquid crystal driving circuit is disclosed which carries out time-division driving with respect to each pixel constituting a liquid crystal display panel by causing a bright and dark frame period and a positive and negative frame period to be different from each other, the bright and dark frame period being a period of brightness and darkness of luminance at which to drive the each pixel, the positive and negative frame period being a period of polarities of a voltage to be applied to liquid crystal of the each pixel.05-03-2012
20120105513LIQUID CRYSTAL DISPLAY DEVICE FOR COMPENSATING A PIXEL DATA IN ACCORDANCE WITH AREAS OF A LIQUID CRYSTAL DISPLAY PANEL AND SUB-FRAMES, AND DRIVING METHOD THEREOF - A liquid crystal display device includes a liquid crystal panel, a timing controller, a compensation unit and a panel drive circuit. The liquid crystal panel has a plurality of color pixels, each of the color pixels including two sub-pixels which represent two different colors. The timing controller generates a sub-pixel data stream of two sub-frame format. The sub-pixel data stream of two sub-frame format includes a first sub-pixel data for a first sub-frame and a second sub-pixel data for a second sub-frame. The first sub-pixel data and the second sub-pixel data have different gamma characteristics. The compensation unit is operable to compensate the first sub-pixel data and the second sub-pixel data with different rates. The panel drive circuit drives the sub-pixels on the liquid crystal panel and supplies the sub-pixels with the compensated first sub-pixel data for the first sub-frame and the compensated second sub-pixel data for the second sub-frame.05-03-2012
20120105512METHOD FOR CONTROLLING GATE SIGNALS AND DEVICE THEREOF - A method for controlling gate signals of a liquid crystal display (LCD), including generating gate signal with a modulated pulse width according to the gate signal with a default pulse width; when the LCD is booting up, outputting the gate signal with the modulated pulse width; and when a backlight module of the LCD is turned on, switching the gate signal with the modulated pulse width to the gate signal with the default pulse width. This way, the pulse width of the gate signal is increased after the LCD is boot up and before the backlight module is turned on, enabling the LCD to be boot properly in low temperature, without the need to raise the voltage level of the gate signal.05-03-2012
20120105511Signal Controlling Method for 3D Image Display Device - The present invention provides a 3D image signal controlling method. The method comprises inputting a left eye image into the first liquid crystal layer, turning off the backlight module and switching gray levels of the second liquid crystal layer to a minimum gray level during (4N−3)th time interval, wherein N is natural number; stopping inputting the left eye image, turning on the backlight module and remaining the gray levels of the second liquid crystal layer as the minimum gray level during (4N−2)th time interval; inputting a right eye image into the first liquid crystal layer, turning off the backlight module and switching the gray levels of the second liquid crystal layer as a maximum gray level during (4N−1)th time interval; and stopping inputting the right eye image, turning on the backlight module and remaining the gray levels of the second liquid crystal layer as the maximum gray level during (4N)th time interval.05-03-2012
20100156967LIQUID CRYSTAL DISPLAY ELEMENT, METHOD OF DRIVING THE ELEMENT, AND ELECTRONIC PAPER UTILIZING THE ELEMENT - A method of driving a liquid crystal display element having a cholesteric liquid crystal is provided. The driving method includes a first step for driving a liquid crystal for a relatively short voltage application period after resetting the liquid crystal at pixels to a planar state to display preliminary gray levels and a second step for driving the liquid crystal for a voltage application period longer than the above voltage application period to display desired gray levels.06-24-2010
20100177129ARTIFACT REDUCTION IN OPTICAL SCANNING DISPLAYS - When producing an image in an optical scanning device, such as an optical scanning device employing pulse width modulation, for example, a pixel or its adjacent pixels are illuminated over a period at least as a function of a sequence of illumination data. Such pixel or its adjacent pixels are illuminated, however, at different locations within the pixel or its adjacent pixels over the period. This varying of the illumination-location within pixels over time reduces the “screen-door effect” present in conventional displays.07-15-2010
20100156966IMAGE DISPLAY DEVICE - An image display device includes a first drive mode and a second drive mode. When N indicates an integer equal to or larger than 2(N≧2), a first to N-th frames are N successive frames, and j indicates an integer equal to or larger than 1. During a write period for a k-th (1≦k≦N) frame in the first drive mode, a scanning circuit sequentially selects a (k+N(j−1))-th display line, and a drive circuit supplies analog video voltages for the (k+N (j−1))-th display line to a plurality of signal lines. During a write period for all frames in the second drive mode, the scanning circuit sequentially selects all display lines, and the drive circuit supplies the analog video voltages for all the display lines to the plurality of signal lines.06-24-2010
20100156965LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display is disclosed. The liquid crystal display includes a liquid crystal display panel; a backlight unit; a panel drive circuit; a timing controller; a data stretching unit that modulates an internal video signal using a data stretching curve determined depending on a brightness of the internal video signal for a self-screen drive; an internal memory; a self-screen drive controller; a scaler unit; a selection unit; an internal power circuit; an external power circuit; and a microprocessor that blocks an output of the external power circuit from being supplied to the scaler unit in the self-screen drive.06-24-2010
20100156964Liquid crystal display Device - A backlight illumination control circuit changes the ratio of an illumination period BL to a non-illumination period in a frame period V of a backlight according to a gradation level in the one frame period V of an image displayed on a liquid crystal panel in such a manner that the higher the gradation level, the backlight illumination control circuit increases the ratio of the illumination period BL to the non-illumination period in the frame period V of the backlight, and the lower the gradation level, the backlight illumination control circuit decreases the ratio of the illumination period BL to the non-illumination period in the frame period V of the backlight and thereby controls illumination intensity toward the liquid crystal panel. A time center of illumination intensity in each one frame period V of the backlight is controlled in order that the time center exists in a constant temporal position T from the beginning of each frame period V. This realizes a liquid crystal display device being free from perceived flickers, giving a high contrast feeling, and being excellent in the performance of moving image display.06-24-2010
20120127221ORGANIC ELECTROLUMINESCENCE DISPLAYING APPARATUS - An organic EL displaying apparatus which suppresses a defective display caused by a leak current at a time when an emission period controlling transistor is off is provided. The organic EL displaying apparatus comprises a plurality of pixels each of which includes an organic EL element, a power supply line, a driving transistor and the emission period controlling transistor, a data line, and a control line. In this apparatus, in a certain one of the pixels, a resistance R05-24-2012
20100188444ELECTRO-OPTICAL DEVICE, ELECTRONIC APPARATUS, AND METHOD OF DRIVING ELECTRO-OPTICAL DEVICE - An electro-optical device includes pixels that is driven in response to an ON voltage or an OFF voltage supplied to the signal lines at a time when each of scanning lines is selected, a scanning line driving circuit that sequentially selects the scanning lines in each of a plurality of subfields within a field, a signal line driving circuit that outputs the ON voltage to the signal lines in at least one temperature compensation subfield and outputs either the ON voltage or the OFF voltage to each of the signal lines in accordance with a designated gray scale of each of the pixels in each of a plurality of gray scale control subfields, which is different from the temperature compensation subfield, and a control unit that sets a time length of the temperature compensation subfield to be changed in accordance with the temperature detected by a temperature detecting unit.07-29-2010
20100194792ILLUMINATION UNIT AND METHOD FOR DRIVING THE ILLUMINATION UNIT - An illumination unit may include at least one luminous means; a detector, which is configured to be used to detect at least one brightness of an image; at least one controller connected to the at least one luminous means and to the detector, wherein the at least one luminous means can be driven in a manner dependent on the at least one brightness of the image with the aid of the controller; a plurality of luminous means whose brightnesses can be set in each case at least one of individually and in clusters with the aid of the controller; and at least one switch which is configured to be used to short-circuit at least one luminous means.08-05-2010
20100259571ELECTRO-OPTICAL APPARATUS, DRIVING METHOD THEREOF AND ELECTRONIC DEVICE - An electro-optical apparatus includes a plurality of unit circuits arranged to correspond to intersections of a plurality of scanning lines and a plurality of data lines, a plurality of control lines, a scanning line driving circuit which sequentially selects one scanning line in every driving period included in a unit period, and selects the plurality of control lines, and a data line driving circuit which outputs, data electric potentials corresponding to gradation data of the unit circuits corresponding to the scanning line selected in the driving period in the unit period, in every writing period included in each unit period before the driving period begins, wherein each plurality of unit circuits includes an electro-optical element, and a capacitor element which has a first electrode connected to a capacitor line through a first switching element and a second electrode connected to the electro-optical element through a second switching element.10-14-2010
20100013873IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND PROGRAM - The present invention relates to an image processing device that can reproduce a state in which, using a first display device, an image is displayed on a second display device having a characteristic different from that of the first display device, an image processing method, and a program. A motion detecting unit 01-21-2010
20100188443SENSOR-BASED FEEDBACK FOR DISPLAY APPARATUS - The invention relates to methods and apparatus for feedback control of image and color quality in a direct-view MEMS display apparatus. The display apparatus includes a lamp capable of providing light, a sensor capable of detecting information indicative of characteristics of light provided by the lamp and outputting a sensor signal based at least partially on the information, and control circuitry for controlling illumination of the lamp based at least partially on the sensor signal.07-29-2010
20100214329PLASMA DISPLAY DEVICE - The protective layer of the plasma display device is formed of a base protective layer and a particle layer. The base protective layer is a thin film of magnesium oxide containing at least one of magnesium oxide, strontium oxide, calcium oxide, and barium oxide. The particle layer is formed in a manner that magnesium-oxide single-crystal particles, which have a structure surrounded by the specified two-type orientation face formed of (100) and (111) faces or the specified three-type orientation face formed of (100), (110), and (111) faces, are stuck to the base protective layer. The panel driving circuit drives the panel in a manner that one field period is formed of a first subfield group having a plurality of subfields and a second subfield group having a plurality of subfields temporally disposed after the first subfield group. Each subfield of the first subfield group has initializing period Ti, address period Tw for forming wall charge to generate a sustain discharge, and sustain period Ts. On the other hand, each subfield of the second subfield group has address period Tw for erasing wall discharge necessary for generating a sustain discharge and sustain period Ts.08-26-2010
20100207968EMISSION DRIVER AND ORGANIC LIGHT EMITTING DISPLAY DEVICE INCLUDING THE SAME - An emission driver includes a plurality of stages, each including: a first driver for outputting an emission control signal through a corresponding emission control line in accordance with either the emission control signal and an inverse emission control signal output from a previous stage of the plurality of stages or a start signal and an inverse start signal; and a second driver for outputting an inverse emission control signal in accordance with the emission control signal and the inverse emission control signal output from the previous stage or the start signal and the inverse start signal, wherein odd numbered stages of the plurality of stages coupled to corresponding odd numbered emission control lines are configured to be driven by a first clock signal, and even numbered stages of the plurality of stages coupled to corresponding even numbered emission control lines are configured to be driven by a second clock signal.08-19-2010
20110175953PROJECTOR AND METHOD FOR PROJECTING AN IMAGE - A projector, having an illumination modulator having multiple illumination pixels a projection lens projecting the light being modulated in a pixel-individual manner onto an image modulator having multiple image pixels to generate the image. A controller generates illumination control data for the illumination modulator and generates image control data for the image modulator. The illumination control data has either an on-value or an off-value The illumination control data (MS) is generated such that the on-value for each illumination pixel is associated with at least one image pixel that is to represent a brightness value within the image and an off-value for all other illumination pixels, with the exception that the illumination control data for at least one of the other illumination pixels that is at a distance by not more than one predetermined pixel number, has an on-value.07-21-2011
20130127933CONTROL DEVICE, ELECTROOPTICS DEVICE, ELECTRONIC APPARATUS, AND CONTROL METHOD - An acquisition device acquires temperature information indicative of temperature. When rewriting of the gray level of a target pixel to be processed among plural pixels starts, in case the temperature indicated by the temperature information acquired by the acquisition device is less than a threshold value, a remainder frequency setting device writes a value b (b05-23-2013
20100220123Display Device - An object of the present invention is to provide a display device which enables multi-gray scale display without complicating the structure of D/A converter circuit.09-02-2010
20110128310ELECTRONIC DEVICE AND METHOD FOR ADJUSTING PIXEL CLOCK FREQUENCY THEREOF - An electronic device and a method for adjusting a pixel clock frequency thereof are provided. The electronic device automatically detects whether or not the electronic device has a wireless communication module during a boot procedure. If the electronic device has the wireless communication module, the electronic device reads an adjustment parameter corresponding to a panel model of the electronic device through a lookup table stored in the electronic device and adjusts the pixel clock frequency according to the adjustment parameter so as to avoid generating harmonics of the panel pixel clock in an operating frequency band of the wireless communication module.06-02-2011
20110001767IMAGE DISPLAY DEVICE - An image display device includes signal lines; a video signal generating means which generates a video signal based on gray level information from the outside; a compensation signal generating means which generates a compensation signal based on the gray level information; a selecting means which alternately supplies the video signal and the compensation signal to the signal lines; and a plurality of pixel circuits which are connected to the signal lines. The compensation signal generating means generates the compensation signal based on the gray level information such that the larger the time integration of the potential of the video signal is, the smaller the time integration of the potential of the compensation signal is.01-06-2011
20130147863METHOD OF DISPLAYING THREE-DIMENSIONAL STEREOSCOPIC IMAGE AND DISPLAY APPARATUS FOR PERFORMING THE SAME - A method of displaying a three-dimensional stereoscopic image includes providing a display panel with a data signal including a left-eye data signal and a right-eye data signal, sequentially providing each of a plurality of segment blocks of an active polarized panel with a driving signal including a high level and a low level, where the active polarized panel emits first polarized light in a first polarizing mode of the driving signal based on the data signal, and the active polarized panel emits second polarized light in a second polarizing mode of the driving signal based on the data signal, and selectively providing the display panel with light based on a level changing interval, during which a level of the driving signal is changed.06-13-2013
20110109669DISPLAY DRIVING CIRCUIT AND DISPLAY DRIVING SYSTEM - A display driving circuit (05-12-2011
20110109668DISPLAY DRIVING CIRCUIT AND DISPLAY DRIVING SYSTEM - A display driving device (05-12-2011
20110025732Timing Controller Utilized in Display Device and Method Thereof - A timing controller utilized in a display device includes an image processing circuit, a luminance adjusting circuit, a data converting circuit and a driving signal generating circuit. The image processing circuit performs image processing on image data of an image signal. The luminance adjusting circuit adjusts luminance of the processed image data according to a luminance characteristic of the display panel of the display device. According to a pixel arrangement of the display panel, the data converting circuit converts the adjusted image data to display data provided to a driving circuit of the display panel. The driving signal generating circuit generates a driving signal to control the driving circuit according to a synchronous signal of the image signal.02-03-2011
20110115838LIQUID CRYSTAL DISPLAY DEVICE AND LIQUID CRYSTAL DISPLAY UNIT - At least one of a first control circuit (05-19-2011
20110115834CHARGE PUMP AND DISPLAY DRIVING SYSTEM INCLUDING THE SAME - Provided is a boosting voltage generating element used in a semiconductor integrated circuit, more particularly, is a charge pump. The charge pump includes a first converting unit and a second converting unit. The first converting unit is configured to receive a first voltage in response to a first clock signal to generate a first pumping voltage. The first converting unit is also configured to alternately output the first pumping voltage to a first terminal and a second terminal. The second converting unit is configured to receive the first pumping voltage through the first terminal or the second terminal in response to a second clock signal and a third clock signal respectively, to generate a second pumping voltage The second converting unit is also configured to provide the second pumping voltage to an output terminal. The second converting unit is configured to provide the second pumping voltage to the output terminal for at least half of a period of the second clock signal or the third clock signal.05-19-2011
20110115835PIXEL CIRCUIT AND ORGANIC LIGHT- EMITTING DIODE DISPLAY USING THE PIXEL CIRCUIT - A pixel circuit and an organic light emitting diode (OLED) display including the pixel circuit. The pixel circuit includes an organic light emitting diode OLED having an anode; a storage capacitor having a terminal connected to a first electric power and another terminal connected to a first node; a third transistor having a gate connected to a first scan line, a first electrode connected to the first node, and a second electrode connected to the anode of the OLED; a second transistor having a gate connected to the first scan line, a first electrode connected to a data line, and a second electrode connected to a second node; a fourth transistor having a gate connected to a light emission control line, a first electrode connected to the first electric power, and a second electrode connected to the second node; and a first transistor having a gate connected to the first node, a first electrode connected to the second node, and a second electrode connected to the anode of the OLED. A voltage at the first node is adjusted by controlling a pulse width of a first scan signal provided from the first scan line in order to control a current supplied to the OLED.05-19-2011
20110115837Monitor Retraining Device - A monitor retraining device includes a handheld housing, a controller disposed within the housing, and a connector connected to the controller and connectable directly to a monitor having a screen. The controller has a first state wherein the controller provides an output signal to the connector to cause the monitor to display a white image over the entire screen for a first time period, and a second state wherein the controller provides no output signal to the connector to cause the monitor to display a black image over the entire screen for a second time period, the controller automatically alternating between the first and second states without feedback as to the white image or the black image displayed.05-19-2011
20090033688BRIGHTNESS ADJUSTING METHOD AND DEVICE FOR AN LED-BASED DISPLAY PANEL - A brightness adjusting device for a light-emitting diode (LED) display panel has at least one photo sensor, a control circuit, a timing controller and a driving circuit. The LED display panel is composed of multiple LEDs being divided into groups according to color. The photo sensor sequentially senses brightness of the groups of LEDs and generates brightness values. The control circuit compares the brightness values to standard brightness values. Based on the compared results, the driving circuit adjusts the brightness of corresponding LEDs.02-05-2009
20110128311DISPLAY DEVICE FOR VEHICLE - A display device for a vehicle includes: a self-luminous indicator which has a display screen with a plurality of pixels; a display control unit that displays image information indicating at least a given display pattern on a display screen of the self-luminous indicator; a display time measuring unit that measures a display time of the self-luminous indicator; and a brightness adjusting unit that adjusts the brightness of the display screen on the basis of at least the display time measured by the display time measuring unit in order to suppress non-uniform brightness deterioration of the display screen when the non-uniform brightness deterioration occurs on the display screen. The display control unit displays the image information on the display screen of the self-luminous indicator with the brightness adjusted by the brightness adjusting unit.06-02-2011
20100182352DISPLAY APPARATUS AND CONTROL METHOD FOR DISPLAY APPARATUS - A display apparatus is provided which optimally restores decreased luminance and extends a life of a light emitting element. The display apparatus includes a memory that stores a plurality of trap levels in association with a plurality of use durations of the light emitting element. An obtainer determines one of the plurality of use durations of the light emitting element. A controller reads, from the memory, one of the plurality of trap levels associated with the one of the plurality of use durations, and removes a charge from the light emitting element by application of a reverse bias voltage having a level associated with the one of the plurality of trap levels. The controller changes the level of the reverse bias voltage which is applied to the light emitting element so that as the one of the plurality of use durations increases, the level of the reverse bias voltage increases.07-22-2010
20110084993OLED DISPLAY PANEL WITH PWM CONTROL - A display panel which applies a PWM drive to a drive transistor (04-14-2011
20120242722DISPLAY PANEL DRIVE DEVICE, SEMICONDUCTOR INTEGRATED DEVICE, AND IMAGE DATA ACQUISITION METHOD IN DISPLAY PANEL DRIVE DEVICE - A display panel drive device for applying a drive pulse to data lines of a display panel according to a video signal includes a latch portion and an output amplifier. The latch portion includes a first latch section, a delay circuit, and a second latch section. The first latch section is provided for capturing the pixel data pieces or retaining the pixel data pieces. The delay circuit is provided for generating a delayed load clock signal. The second latch section is provided for capturing the pixel data pieces or retaining the pixel data pieces. The delayed load clock signal is transited to the first level state after a first delay time, and the delayed load clock signal is transited to the second level state after a second delay time shorter than the first delay time.09-27-2012
20110249046LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display (LCD) device is disclosed. In the device an R or B pixel is driven and then a G or W pixel is driven, so that the polarity of the pixels is inversed every two data lines. Thus, problems, such as flicker and a non-uniform picture quality are reduced.10-13-2011
20100277519Liquid crystal display capable of automatically adjusting gamma value and brightness - A liquid crystal display that is capable of maintaining a consistent display quality regardless of variations in the liquid crystal panel temperature is presented. The liquid crystal display includes a liquid crystal panel that displays an image and a driving circuit that drives the liquid crystal display panel. The liquid crystal display panel has a temperature sensor that senses temperature variation in the liquid crystal panel and outputs a sensing signal. The driving circuit adjusts a gamma value in response to the sensing signal and drives the liquid crystal panel based on the adjusted gamma value. The gamma value is adjusted by measuring a shift in the gamma value and applying a compensation factor that is opposite in polarity but similar in magnitude to the shift.11-04-2010
20100097412LIGHT SOURCE DEVICE AND LIQUID CRYSTAL DISPLAY UNIT - A light source device, performing partial lighting operation and having a function of detection of illuminated light with improved precision is provided. The light source device including: a light source section having a plurality of partial lighting sections each controlled separately; a drive means for time-divisionally driving the light source section with a pulse signal so that a whole lighting time period and a partial lighting time period are mixed along time base; a photoreception device receiving light from the light source section; and a sampling means for sampling, at a timing in the partial lighting time period, a photoreception signal from the photoreception device. The drive means controls a width of the pulse signal immediately before a transition from the whole lighting time period to the partial lighting time period so that the width is equal to or less than a given threshold value.04-22-2010
20100097413PLASMA DISPLAY DEVICE, AND DRIVING METHOD USED IN THE PLASMA DISPLAY DEVICE - [Problem] A plasma display device is provided which is capable of reducing an afterimage (burning) in a short time.04-22-2010
20110254884APPARATUS AND METHOD FOR DRIVING IMAGE DISPLAY APPARATUS - An apparatus and method for driving an image display apparatus are disclosed. The apparatus includes a display panel having a plurality of pixels, for displaying an image, a panel driver for driving the pixels of the display panel, an image data converter for detecting a smooth region, an edge region, and a detail region from externally input image data in units of at least one frame and generating converted image data by changing a gray scale or chrominance of the image data at different rates in the smooth region, the edge region and the detail region, and a timing controller for arranging the converted image data suitably for driving of the display panel, providing the arranged image data to the panel driver, and controlling the panel driver by generating a panel control signal.10-20-2011
20110164076COST-EFFECTIVE DISPLAY METHODS AND APPARATUSES - In first aspect of the invention, driving methods of gate interlaced scanning for color LCD are disclosed. This interlaced scanning involves powering odd gate lines sequentially first and then powering even gate lines sequentially, which can minimize the voltage polarity swing to reduce power consumption in source output block. In second aspect of the invention, driving methods of FSCLCD having an RGB LED backlight unit scanning with an increased LED lamp turn on time and reduced potential non-uniformity near modular light guide panel are disclosed. Novel driving methods of variant sub-color frame periods are also disclosed with various color sub-frames. In third aspect of the invention, a dual common electrode color LCD with a source driver IC block with lower driving voltage and lower power consumption in the display panel is disclosed, wherein each common electrode voltage has opposite voltage phase to reduce the source driving voltage.07-07-2011
20110164075DISPLAY DEVICE - A display device is provided that can eliminate feeling of discomfort of a user while preventing cost from being increased. The display device includes display means 07-07-2011
20110134169LIQUID CRYSTAL DISPLAY AND DRIVING METHOD THEREOF - A liquid crystal display device includes a data transition part to compare a number of transitions between a previous data and a current data and to compare a number of transitions between the current data and a next data to determine whether or not the current data is to be inverted in accordance with a comparison result thereof, and to determine whether or not the current data is to be inverted in accordance with a high level number difference of the data, thereby generating a reverse signal when the current data is inverted, a memory to store a data from the data transition part, a data reverse transition part to reversely convert the data from the memory using the reverse signal, a lookup table to compare the current data and the previous frame data reversely converted by the data reverse transition part to select a modulated data and a display drive circuit to display the data from the lookup table on a liquid crystal display panel.06-09-2011
20110134168LIQUID CRYSTAL DISPLAY AND METHOD OF DRIVING THE SAME - A liquid crystal display (LCD) includes: a light source unit to provide light to a liquid crystal panel and includes first point light sources and second point light sources; a first timing controller to transmit a first image signal and a second image signal to the liquid crystal panel; a second timing controller to transmit optical data, which includes first information to turn on the first point light sources and the second point light sources at different times; and a light source driver to control the first point light sources and the second point light sources to be turned on and off according to the optical data. A method of driving an LCD includes turning on and off first and second point light sources according to received first and second image signals.06-09-2011
20110254883PIXEL CIRCUIT RELATING TO ORGANIC LIGHT EMITTING DIODE AND DISPLAY USING THE SAME AND DRIVING METHOD THEREOF - A pixel circuit relating to an organic light emitting diode (OLED) and a display using the same and a driving method thereof are provided. The pixel circuit submitted by the present invention adopts a 3T2C architecture (i.e. three TFTs plus two capacitors), and which circuit topology being driven by the corresponding scan signals and data signal may make the luminance shown by the pixel circuit only relate to the data signal and do not relate to the threshold voltage of a transistor used to drive a lighting element (i.e. OLED), a system high voltage received by the pixel circuit, and a potential between an anode and a cathode of the lighting element, such that the problem of non-uniform displaying on the OLED display panel may be improved or resolved effectively.10-20-2011
20120147069LIQUID CRYSTAL DISPLAY AND METHOD FOR DRIVING PANEL THEREOF - A liquid crystal display and a method for driving a liquid crystal display panel thereof are provided. The method includes sequentially generating a plurality of first scan signals to first ends of a plurality of scan lines in the liquid crystal display panel; sequentially generating a plurality of second scan signals to second ends of the scan lines; and coordinating with the generation of each of the first scan signals or the generation of each of the second scan signals to correspondingly generate a plurality of data signals to a plurality of data lines in the liquid crystal display panel. The i06-14-2012
20110080440DISPLAY DEVICE APPARATUS, APPARATUS AND METHOD FOR DRIVING THE SAME - An apparatus for driving a display device includes a timing controller and a data driver. The timing controller encodes first gray scale data of a present frame, decodes encoded second gray scale data of a previous frame, compares the first gray scale data with the second gray scale data, and generates compensated gray scale data based on a result of comparing the first gray scale data with the second gray scale data. The data driver generates data signal based on the compensated gray scale data to provide the data lines with the data signal. The gray scale data are encoded so that the toggle number between adjacent data pins into which the gray scale data are output may be reduce. The encoded gray scale data are stored in a memory. Thus, the power consumption is reduced, and the EMI may be reduced.04-07-2011
20100110114Liquid crystal display device and method of driving thereof - A liquid crystal display device has: a liquid crystal panel having liquid crystal cells arranged at respective intersections of data lines and scanning lines; and a data line driver circuit. Six kinds of data signals include: a first data signal of positive polarity associated with a first color image data; a second data signal of negative polarity associated with the first color image data; a third data signal of positive polarity associated with a second color image data; a fourth data signal of negative polarity associated with the second color image data; a fifth data signal of positive polarity associated with a third color image data; and a sixth data signal of negative polarity associated with the third color image data. The data line driver circuit supplies each of the six kinds of data signals for the same number of times during a predetermined period with respect to each data line.05-06-2010
20100214330Image display device - An image display device includes a gain calculator, a multiplier and an overdrive unit. The gain calculator calculates a ratio “Gmax0/Gmax1” as gain, with respect to each segmented region of liquid crystal panel. The symbol “Gmax1” represents a maximum gradation in one frame period of an image signal to be supplied to each segmented region. The symbol “Gmax0” represents a maximum gradation to be determined depending on the number of bits in the image signal. The multiplier multiplies an image signal subjected to frame frequency conversion in a frame frequency conversion unit by the gain to generate an image signal subjected to the area control processing, with respect to each segmented region. The overdrive unit emphasizes the image signal subjected to the area control processing, using an image signal generated by delaying the image signal subjected to the area control processing for one frame period.08-26-2010
20100066770Pulse Width Modulation Display Pixels with Spatial Manipulation - Systems and methods of producing images are provided. Data corresponding to a first set of display pixels is received. When it is determined that a transition occurs in the first set of display pixels, a position of at least one display pixel in the first set of display pixels is adjusted based on the determined transition. The adjustment can involve adjusting a center of a pulse that causes formation of the display pixel away from a center of a modulation window.03-18-2010
20100194794DISPLAY DEVICE HAVING DISPLAY ELEMENT OF DOT MATRIX TYPE AND A DRIVE METHOD OF THE SAME - A display device includes a matrix-type display element, a drive circuit, a control circuit, and a temperature sensor, the control circuit controls the drive circuit so that an initialization pulse to initialize a pixel to be rewritten is applied to bring about an initial gradation state and then a gradation pulse is applied to the initialized pixel to bring about a gradation state, the cumulative time during which the gradation pulse is applied is related to the value of the gradation state, the control circuit fixes the pulse voltage of the initialization pulse and varies the pulse width of the initialization pulse in accordance with the temperature detected by the temperature sensor, and varies the pulse width of the gradation pulse when the temperature is low and varies the pulse voltage of the gradation pulse when the temperature detected is high.08-05-2010
20100194793CHOLESTERIC LIQUID CRYSTAL DISPLAY DEVICE - A display device includes: a display element of a dot matrix type; a row driver that drives a row electrode of the display element; a column driver that drives a column electrode of the display element; and a multiple voltage power source that supplies a drive voltage to the row driver and the column driver, wherein: the row driver and the column driver are configured by a segment driver; and the device includes a power source switching switch which switches drive voltages to be supplied to the row driver in accordance with the polarity of an applied voltage to be applied to a pixel of the display element.08-05-2010
20100194791VIDEO DISPLAY APPARATUS - For the purpose of obtaining a video signal by suppressing a black float while not consuming an excess electric power therein, not contributing to display of a backlight, a video display apparatus having a plural number of backlights for irradiating lights upon a display panel, comprises a histogram detector for conducting a histogram detection for each display region corresponding to that backlight from an input video signal of one (1) frame, a means for determining a control value of that plural number of backlights depending on a specific picture or video, which is detected by the histogram detector, and a video signal processor for controlling an amount of a controlled light the display panel of a display region, i.e., a put-out region, depending on the backlight control value, which is determined by the means for determining the control value of the backlight.08-05-2010
20100265282DRIVING APPARATUS FOR LIQUID CRYSTAL LIGHT MODULATOR AND VARIABLE OPTICAL ATTENUATOR EMPLOYING DRIVING APPARATUS - A liquid crystal light modulator 10-21-2010
20110115836COLOR MANAGEMENT METHOD AND DEVICE - The embodiments of the present invention relate to a color management method and device, the method comprises: RGB values is acquired from image signal inputted from external device; the corresponding transmittance of red pixel, transmittance of green pixel, and transmittance of blue pixel are calculated with an formula according to said RGB values and pre-stored system transition matrix with standard transition matrix; a control signal to control a driving voltage and/or luminance of light source corresponding to the red, green and blue pixels of the display device is generated according to the calculated transmittance of red pixel, transmittance of green pixel, and transmittance of blue pixel, so as to control the display device to perform the color display. The color management method enables the display device to accurately restore the reproduction color information, thereby effectively solving the color distortion problem of the display device.05-19-2011
20110018914DRIVING CIRCUIT FOR LIGHT EMITTING DIODE - An LED driving circuit drives multiple channels of light emitting units which provide a function as a backlight for a liquid crystal panel. An interface unit receives a luminance setting signal that specifies the luminance for each channel. The LED driving circuit drives each of the multiple channels of light emitting units with a luminance that corresponds to the luminance setting signal.01-27-2011
20120306945IMAGE SIGNAL PROCESSING DEVICE FOR SEQUENTIALLY DRIVING A PLURALITY OF LIGHT SOURCES, DISPLAY APPARATUS USING THE IMAGE SIGNAL PROCESSING DEVICE, AND DISPLAY METHOD THEREOF - An image signal processing device, a display apparatus, and a display method are provided. The image signal processing device includes: a light source driver which turns on a plurality of light sources providing different colors, in a given order; a sub-frame calculator which divides a frame of an input image signal into a plurality of sub-frames; a display processor which sequentially outputs the plurality of sub-frames on a display panel; and a sync signal processor which outputs a sync signal to the backlight driver to turn on the plurality of light sources in each of the plurality of sub-frames, in the given order.12-06-2012
20110304658STEREOSCOPIC IMAGE DISPLAY AND DRIVING METHOD THEREOF - The present invention relates to a stereoscopic image display and to a driving method thereof, and more particularly, to a stereoscopic image display capable of preventing the occurrence of crosstalk, and to a driving method thereof. The method for driving the stereoscopic image display of the present invention, comprises the steps of: generating a double-speed image signal containing a left eye image signal and a right eye image signal having a period shorter than one frame of input frame units, and a black image signal with no scene signal for image signals input by said frame units which separately contain a left eye image and a right eye image; and outputting a driving signal for driving a display panel in accordance with the double-speed image signal.12-15-2011
20120038693High Dynamic Range Projection System - Embodiments relate generally to computer-based image processing, and more particularly, to systems, computer-readable media, methods, integrated circuits, and apparatuses to facilitate operation of a projection system with relatively high dynamic range output by, among other things, providing subsets of light patterns along an optical path during respective first and second temporal fields associated with respective first and second illuminants. The projection system can synthesize color for projectable images by combining or otherwise using the subsets of light patterns with an array of color elements to produce projectable images with color in at least the visible spectrum.02-16-2012
20110050757CONFIGURATION OF CURRENT REGULATORS FOR LED-BASED FLEXIBLE VIDEO SCREENS - The present invention presents a distribution of four pixels (03-03-2011
20120038692ELECTRO-OPTIC DEVICE AND ELECTRONIC APPARATUS - A signal supply circuit supplies, to a control line, a control signal which is set so as to have a precharge potential during a precharge period before start of a writing period and which is set so as to have a gray scale potential corresponding to a designated gray scale of each pixel in a time division manner during the writing period. A plurality of switches controls connection between the signal lines and the control line. A control circuit controls the plurality of switches so as to be concurrently turned on during a precharge period and controls the plurality of switches so as to be turned on sequentially during a plurality of unit periods of the writing period. The control circuit sets an initial unit period after elapse of the precharge period among the plurality of unit periods so as to be longer than the other unit periods.02-16-2012
20120038691METHOD OF DRIVING A LIGHT SOURCE AND DISPLAY APPARATUS FOR PERFORMING THE METHOD - A method of driving a light source, which comprises a first light-emitting module including first to k-th light source blocks and disposed at a first edge of a light guide plate, and a second light-emitting module including first to m-th light source blocks and disposed at a second edge of the light guide plate, wherein k and m are natural numbers, includes generating a plurality of duty control signals corresponding to the first to k-th top light source blocks and the first to m-th bottom light source blocks based on an image signal, and selectively generating first to k-th top driving signals and first to m-th bottom driving signals using the plurality of duty control signals based on a three-dimensional image enable signal, where the first to k-th top driving signals drive the first light-emitting module, and the first to m-th bottom driving signals drive the second light-emitting module02-16-2012
20130010018Method Of Optically Transmitting Digital Information From A Smart Phone To A Control Device - A load control device is able to receive radio-frequency (RF) signals from a Wi-Fi-enabled device, such as a smart phone, via a wireless local area network. The load control device comprises a controllably conductive device adapted to be coupled in series between an AC power source and an electrical load, a controller for rendering the controllably conductive device conductive and non-conductive, and a Wi-Fi module operable to receive the RF signals from the wireless network. The controller controls the controllably conductive device to adjust the power delivered to the load in response to the wireless signals received from the wireless network. The load control device may further comprise an optical module operable to receive an optical signal, such that the controller may obtain an IP address from the received optical signal and control the power delivered to the load in response to a wireless signal that includes the IP address.01-10-2013
20110157262POWER CONTROL METHOD OF LIGHT EMITTING DEVICE FOR IMAGE DISPLAY, LIGHT EMITTING DEVICE FOR IMAGE DISPLAY, DISPLAY DEVICE AND TELEVISION RECEIVER - In a method of controlling power of a light emitting device for image display that irradiates illumination light from divided regions, light emission brightness data of each light emitting element of the light emitting device is determined based on image data for image display (S06-30-2011
20110157261MEASURING DEVICE AND MEASURING METHOD FOR THRESHOLD OF FLICKER - This invention relates to a flicker threshold measurement device including: an arithmetic processing unit 06-30-2011
20100194790Set of light emissive diode elements for a backlight device and backlight display - The invention relates to a backlight device with light emissive diodes not requiring the supply of a large current. According to the invention, each light emissive diode of the backlight device is combined with a voltage converter capable of storing energy during part of the operating cycle and then discharging this energy into the light emissive diode during another part of the cycle.08-05-2010
20120062623ORGANIC LIGHT EMITTING DISPLAY AND METHOD OF DRIVING THE SAME - A method of driving an organic light emitting display in which a frame is divided into a plurality of sub frames, includes: storing a plurality of bit change values corresponding to emission times in a plurality of lookup tables; selecting one of the lookup tables from among the plurality of lookup tables; measuring and storing emission times of pixels included in the organic light emitting display; extracting one of the bit change values from the selected lookup table corresponding to the emission time of one of the pixels when first data to be supplied to the one of the pixels is input; and changing a bit value of the first data to generate second data to be supplied to the one of the pixels utilizing the extracted bit change value.03-15-2012
20120056916Display device and driving method thereof - A display device includes: a display unit including a plurality of pixels connected to a plurality of scan lines and a plurality of data lines and emitting light according to corresponding image data; a dummy pixel connected to a dummy scan line and a dummy data line; and a compensation image data generator calculating a compensation amount according to an accumulation light emitting time of the first organic light emitting element to detect the compensation amount corresponding to each accumulation light emitting time of a plurality of second organic light emitting elements of the plurality of pixels by using a decreasing amount of luminance corresponding a resistance of a first organic light emitting element according to an accumulation light emitting time of the first organic light emitting element of the dummy pixel, and compensating the corresponding image data according to the detected compensation amount.03-08-2012
20110096107COLOR SEQUENTIAL LIQUID CRYSTAL DISPLAY DEVICE AND RELATED DRIVING METHOD - A method for driving a color sequential liquid crystal display device first provides a vertical synchronization signal for defining a driving period, a field synchronization signal for defining a plurality of fields in the driving period, and a plurality of gamma voltages each related to a corresponding field in the driving period. Next, a plurality of control signals are outputted according to the vertical synchronization signal and the field synchronization signal. In a specific field, a corresponding gamma voltage among the plurality of gamma voltages is outputted according to the plurality of control signals.04-28-2011
20110096106TIMING CONTROL CIRCUIT - A timing controller is connected via a common bus to multiple data drivers which drive a display panel. A reception interface circuit receives image data including each color (R, G, and B). A timing control unit controls the timing of the luminance data for each color, i.e., R, G, and B, such that it conforms to the multiple data drivers provided as the transmission destinations. A transmission interface circuit transmits the luminance data for each color, the timing of which is controlled by the timing control unit, and a synchronization clock, to the multiple data drivers via the common bus. The transmission interface circuit is configured so as to independently adjust the respective phases of the synchronization clock and the luminance data for each color to be output to the bus.04-28-2011
20120206512LIQUID CRYSTAL DISPLAY DEVICE AND DRIVING METHOD THEREOF - Disclosed are an LCD device and a driving method thereof, which save the manufacturing cost that is expended by the application of four-color (RGBW) sub-pixels, and enhance an aperture ratio and brightness, thus increasing display quality. The LCD device includes an upper substrate, a lower substrate, and a liquid crystal layer. A plurality of R, G, B and W color filters are formed at the upper substrate. In the lower substrate, a plurality of R, G, B and W sub-pixels are formed in respective regions defined by intersection of a plurality of gate lines and data lines. The liquid crystal layer is formed between the upper substrate and the lower substrate. Each of the pixels is configure with three-color sub-pixels of the R, G, B and W sub-pixels. Pixels of the plurality of pixels including a W sub-pixel share a one-color sub-pixel included in a pixel adjacent thereto, and display a color image.08-16-2012
20120013655METHOD FOR MODULATING DISPLAY DATA OF FLAT DISPLAY AND FLAT DISPLAY USING THE SAME - A method for modulating display data of a flat display, comprises receiving a display datum with a digital count between a maximum digital count and a minimum digital count; modulating the display datum to correspondingly generate a modulated display datum, wherein the modulated display datum has a digital count same as that of the corresponding display datum when the digital count of the corresponding display datum is the same as the maximum digital count, and the modulated display datum has the digital count less than that of the corresponding display datum when the digital count of the corresponding display datum is less than the maximum digital count, wherein at least one modulated display datum has the digital count less than that of the corresponding display datum; and outputting the modulated display datum.01-19-2012
20120056917ELECTROOPTICAL DEVICE AND ELECTRONIC APPARATUS - A scanning line driving circuit sequentially selects each of a plurality of scanning lines for each unit period. A signal supply circuit supplies, to a signal line, a gradation potential in accordance with a designated gradation of a pixel in a write period within the unit period. The signal supply circuit supplies a pre-charge potential to the signal line in a pre-charge period before the start of the write period in a first unit period of the plurality of unit periods, and the supply of the pre-charge potential to the signal line stops in a second unit period.03-08-2012
20120154462REGULATION OF GAMMA CHARACTERISTIC IN A DISPLAY - System(s) and method(s) are provided for regulation of gamma characteristic of a display having solid-state-based backlight illumination. Regulation of the gamma characteristic can be accomplished at least in part through synchronization of data writing to a set of pixels in a display within a video frame with backlight illumination of a region of the display during a predetermined period, wherein the region is spanned by the set of pixels. Collection of data indicative of illumination intensity of light to be emitted in a region of a backlight source of the display during the predetermined period enables determination of at least one gamma value and at least one gamma reference voltage related to the at least one gamma value. Application of the at least one gamma reference voltage to the set of pixels adjusts the gamma characteristic thereof within the video frame.06-21-2012
20120026215DISPLAY DEVICE AND DRIVE METHOD FOR DISPLAY DEVICES - A display device supplies, during a vertical blanking interval, a data signal for a gray display to each data signal line so as to cause the each data signal line to retain the data signal for the gray display. In at least one example embodiment, the data signal for the gray display has a polarity identical to a polarity of a data signal supplied immediately before the vertical blanking interval. This achieves a display device and a method for driving a display device in each of which, while an AC driving is carried out so that (i) data signals having opposite polarities are written to respective picture elements adjacent to each other within the same row, (ii) a polarity of a data signal supplied to each data signal line is reversed at least once during one vertical period, and (iii) a polarity of a data signal written to each picture element is reversed for every predetermined period, an effective value of a voltage applied to liquid crystal is less likely to differ between a picture element to which a data signal having a positive polarity is written and a picture element to which a data signal having a negative polarity is written.02-02-2012
20120062625PROJECTION APPARATUS, PROJECTION METHOD, AND PROGRAM STORAGE MEDIUM - A projection apparatus includes a storage unit configured to store an image signal input via the input unit, a comparison unit configured to compare an image signal input via the input unit with an image signal already stored in the storage unit and determine one of coincidence and inconsistency between the compared two image signals, a time-measurement unit configured to measure a time of a state in which coincidence between the compared two image signals is determined by the comparison unit, a determining unit configured to determine whether or not a time-measurement result by the time-measurement unit exceeds a preset time, and a projection control unit configured to variably set the light-emission luminance of the light source to be lowered according to a determination result of the determining unit.03-15-2012
20120062624STEREOSCOPIC DISPLAY AND DRIVING METHOD THEREOF - A driving method for stereoscopic display is provided, and the method comprises: obtaining a distance between a viewer and the stereoscopic display; obtaining an offset amount for sub-pixels of different colors displaying the same image point for the different eyes based on the above distance; obtaining a transformed transmission sequence of 2D image sub-pixel signals based on the offset amount, in which the sub-pixels of different colors for displaying the same image point for the different eyes are offset by the offset amount on the stereoscopic display; and outputting the 2D image sub-pixel signals according to the transformed transmission sequence so as to display sub-images of different colors for the different eyes.03-15-2012
20120154465Liquid Crystal Display Controller - The present invention provides a liquid crystal display controller device and method which provides for a full and/or partial display with good display quality and/or low power consumption based on the scanning period for an active scan line being dependent upon a number of reference clock pulses. Some embodiments of the present invention include one or more of the following features: keeping the frequency substantially constant for different numbers of active scan lines, allowing change of the frequency due to characteristics of the LCD, displaying gradation with near linear effective voltage characteristics, displaying graduation data with lower power, or displaying a partial or full screen in a mobile device, for example, a cell phone.06-21-2012
201201544633D IMAGE DISPLAY APPARATUS AND DRIVING METHOD THEREOF - A 3D image display apparatus includes a first display panel which alternately displays a left eye image and a right eye image, a second display panel having a plurality of pixels including a left eye pixel and a right eye pixel, a backlight unit which is disposed at a back side of the second display panel, a lens array which is disposed at a front side of the second display panel and has a plurality of lenticular lenses dividing light emitted from the backlight unit into a left eye visual field and a right eye visual field and emitting the divided light, and a control unit which controls on and off of the left eye pixel and the right eye pixel of the second display panel according to a time when the left eye image and the right eye image are displayed.06-21-2012
20110080441METHOD OF DRIVING AN ORGANIC LIGHT EMITTING DIODE (OLED) PIXEL, A SYSTEM FOR DRIVING AN OLED PIXEL AND A COMPUTER-READABLE MEDIUM - A new drive scheme is provided for OLED displays that uses a pulsed drive mode. The pulsed drive mode results in a reduced duty cycle for pixel operation. The peak OLED current is increased correspondingly to maintain a constant average luminance over the frame period so that there is no brightness loss. The method, system and computer-readable medium according to the present innovation uses a blanking signal to set the OLED pixel to black by discharging a capacitive element prior to re-programming the OLED pixel during a next synchronization cycle. An organic light emitting diode (OLED) pixel system is provided. A computer-readable medium having stored thereon computer-executable instructions is provided.04-07-2011
20120249617DISPLAY UNIT AND DISPLAYING METHOD - A display unit includes: a liquid crystal display section displaying a series of original frame images and a series of interpolated frame images in a time-divisional manner, the interpolated frame images being generated based on the original frame images; a backlight emitting light intermittently; and a backlight control section controlling a first light-emission amount and a second light-emission amount of the backlight independently of each other, the first light-emission amount being an amount during a first period corresponding to a period for displaying the original frame images, and the second light-emission amount being an amount during a second period corresponding to a period for displaying the interpolated frame images.10-04-2012
20120120129DISPLAY CONTROLLER DRIVER AND METHOD FOR TESTING THE SAME - A display controller driver and a testing method therewith are provided. The display controller driver includes a timing control circuit, an image data memory, a data line driving circuit and a scan line driving circuit. The testing method includes controlling the scan line driving circuit by a control signal in a test operation mode, wherein the control signal is generated by an external test platform. The scan line driving circuit is tested and measured in accordance with a test pattern of the control signal.05-17-2012
20120120128DISPLAY APPARATUS AND METHOD OF DRIVING THE SAME - A display apparatus includes a display panel including nxm array of pixels and which sequentially drives the pixels from pixels in a first row to pixels in an n-th row, a panel driving circuit which sequentially applies first, second, third or fourth image data to the display panel, a backlight unit including a first light source disposed adjacent to the pixels in the first row and a second light source disposed adjacent to the pixels in the n-th row, and a backlight control circuit which divides each of first and second time periods into first, second, third and fourth blinking time periods, and applies a control signal to the backlight unit, where the first time period corresponds to two frames during which the first and second image data are applied, and the second time period corresponds to two frames during which the third and fourth image data are applied.05-17-2012
20110102484 A DISPLAY - A display includes a plurality of display elements. Each display element includes two opposed electrodes, a first dielectric layer, a fluid including a plurality of colorants, and a second dielectric layer. The first dielectric layer is disposed between the electrodes and has at least one reservoir defined therein. The second dielectric layer exhibits non-linear resistance, and is disposed on at least one of the electrodes and adjacent to the fluid. The fluid is disposed in a space defined between the electrodes, and the plurality of colorants is configured to move in response to an applied electric field.05-05-2011
20120212522METHOD AND APPARATUS FOR CONTROLLING SCREEN BACKLIGHT - The present invention discloses a method and an apparatus for controlling a screen backlight, and the method comprises: receiving a trigger instruction of the screen backlight; querying in preset information for active screen backlight attributes corresponding to a time period which contains a current time point; and controlling the screen backlight according to the active screen backlight attributes. The method and apparatus for controlling the screen backlight of the present invention achieves the automatic control of the screen backlight, eliminating the need for manual control by a user by way of querying in preset information for active screen backlight attributes corresponding to a time period which contains a current time point and controlling the screen backlight according to the active screen backlight attributes.08-23-2012
20100289840Light Emitting Device and Driving Method Thereof - A light emitting device which is able to suppress power consumption while a balance of white light is maintained is provided. According to the present invention, either the potential level of the Hi video signal or Lo video signal which is given to a gate electrode of a transistor, and the potential level of the power source lines are changed by the respective corresponding colors. Concretely, the potential level at the side of Lo and the potential level of the power source line are made to be changed by the respective corresponding colors when a transistor which controls current supplied to a light emitting element is a p-channel type. Conversely, the potential level at the side so of the Hi and potential level of the power source line are made to be changed by the respective corresponding colors when a transistor which controls current supplied to a light emitting element is an n-channel type.11-18-2010
20100289839LIQUID CRYSTAL DISPLAY - A liquid crystal display is disclosed. The liquid crystal display includes a timing controller outputting a pair of R digital video data, a pair of G digital video data, a pair of B digital video data, and a pair of clocks, a plurality of source driver integrated circuits (ICs), each of which receives the pair of each of R, G, and B digital video data and the pair of clocks from the timing controller to generate a positive analog data voltage and a negative analog data voltage, and a source printed circuit board (PCB) on which three pairs of data bus lines and a pair of clock lines are formed, the three pairs of data bus lines and the pair of clock lines connecting output terminals of the timing controller to input terminals of the source driver ICs.11-18-2010
20100289838VARIABLE COMMON ELECTRODE - A display device (11-18-2010
20120299986Display Control Apparatus and Method and Image Processing Method - A display control apparatus is capable of reducing image scaling times, maintaining image quality, and extending a turn-on time of a pair of 3D glasses. The display control apparatus includes a data processing unit and a timing generating unit. The data processing unit provides an image frame comprising a valid data region, which is larger than a visual region of a display panel. The timing generating unit generates an output timing signal according to a relative position of the visual region corresponding to the valid data region, so that a partial region of the valid data region corresponds to the visual region of the display panel. The partial region of the valid data region is displayed in the visual region of the display panel according to the output timing signal.11-29-2012
20120299984DISPLAY DEVICE AND DISPLAYING METHOD - A display device includes: a display section; a barrier section including a plurality of light barriers, wherein each of the light barriers is switched to be opened or closed; and a shutter control section switching each of a left-eye shutter and a right-eye shutter of one or more shutter glasses to be opened or closed, in synchronization with timing of opening or closing of the light barriers.11-29-2012
20120299983WRITING DATA TO SUB-PIXELS USING DIFFERENT WRITE SEQUENCES - With respect to liquid crystal display inversion schemes, a large change in voltage on a data line can affect the voltages on adjacent data lines due to capacitive coupling between data lines. The resulting change in voltage on these adjacent data lines can give rise to visual artifacts in the data lines' corresponding sub-pixels. Various embodiments of the present disclosure serve to prevent or reduce persisting visual artifacts by offsetting their effects or by distributing their presence among different colored sub-pixels. In some embodiments, this may be accomplished by using different write sequences during the update of a row of pixels.11-29-2012
20110181634DRIVING METHOD FOR IMAGE DISPLAY APPARATUS AND DRIVING METHOD FOR IMAGE DISPLAY APPARATUS ASSEMBLY - Disclosed herein is a driving method for an image display apparatus which includes an image display panel and a signal processing section; the driving method including the steps, further carried out by the signal processing section, of calculating a third subpixel output signal to a (p,q)th first pixel, based at least on a third subpixel input signal to the (p,q)th first pixel and a third subpixel input signal to the (p,q)th second signal, and outputting the third subpixel output signal to the third subpixel of the (p,q)th first pixel; and further calculating a fourth subpixel output signal to the (p,q)th second pixel based at least on the third subpixel input signal to the (p,q)th second pixel and the third subpixel input signal to the (p+1,q)th first pixel and outputting the fourth subpixel output signal to the fourth subpixel of the (p,q)th second pixel.07-28-2011
20110181632METHOD AND DRIVER FOR ACTUATING A PASSIVE-MATRIX OLED DISPLAY - A method and unit for controlling a passive matrix-OLED-display with OLEDs assembled in matrix form, wherein columns for controlling an OLED are connected with a current source, and rows are connected consecutively during row addressing time. The lightness of a pixel located on the intersection point of a column with an addressed row is influenced by the turn-on time being within the row addressing time and by the amplitude of the column current. To reach an energy-efficient control it is proposed to control the lightness of the pixel subject to the charge quantity converted into light and subject to a charge quantity during a post luminescence time and converted into light by switching the column potential-free during post luminescence time and considering the charge quantity stored in the capacity of OLEDs before the addressing at determination of the charge quantity converted at the OLED.07-28-2011
20120313985LIQUID CRYSTAL DISPLAY DEVICE AND LIQUID CRYSTAL DISPLAY METHOD - A liquid crystal display device (12-13-2012
20120162292SUSPENDED PARTICLE DEVICE, LIGHT CONTROL DEVICE USING THE SAME, AND METHOD FOR DRIVING THE SAME - Disclosed is a suspended particle device having a higher response speed of particles upon shutdown of the device. The suspended particle device includes a first substrate; a first electrode arranged on a surface of the first substrate; a second substrate; a second electrode arranged on a surface of the second substrate; and a suspension arranged between the first substrate and the second substrate, in which the suspension includes particles and a disperse medium, the particles are dispersed in the disperse medium, an orientation of the particles is controlled by an alternate-current voltage to be applied between the first electrode and the second electrode, and “a” which represents a frequency of an alternate-current voltage in a driving period is greater than “b” which represents a frequency of an alternate-current voltage in a shutdown period.06-28-2012
20120162293GRAY SCALE DRIVE SEQUENCES FOR PULSE WIDTH MODULATED DISPLAYS - Methods, apparatus, and systems for generating drive sequences for pulse width modulated displays are described. A pulse width modulated signal that includes a drive sequence of temporal segments that are activated and deactivated to produce a desired gray scale. The temporal segments can be non-binary, non-equally weighted. The drive sequence can also include at least two of the temporal segments are least significant bit segments and the other segments are higher order segments.06-28-2012
20120169801METHOD AND CIRCUIT FOR SYNCHRONIZING INPUT AND OUTPUT SYNCHRONIZING SIGNALS, BACKLIGHT DRIVER IN LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME, AND METHOD FOR DRIVING THE BACKLIGHT DRIVER - A method and a circuit for synchronizing input and output synchronizing signals are disclosed. The method for synchronizing input and output synchronizing signals includes detecting an Nth (N is a positive integer) input period of the input synchronizing signal, determining whether the detected Nth input period is the same with a prior (N−1)th output period of the output synchronizing signal, detecting a difference between an end time of the (N−1)th output period and an end time of the Nth input period, if the detected Nth input period is not the same with the (N−1)th output period, operating the detected difference with the Nth input period, and setting the operated value as an Nth output period, and generating and outputting the output synchronizing signal having the set Nth output period.07-05-2012
20120169800Display device and driving method thereof - A display device includes a display panel having a plurality of source and gate lines and a plurality of pixels at intersection points of the gate lines and source lines, a gate driver configured to output a plurality of gate driving signals for driving the gate lines, a source driver configured to output a plurality of source driving signals for driving the source lines, a gray voltage generator configured to supply a plurality of gray scale voltages to the source driver, and a common voltage generator configured to generate a plurality of common voltages having different levels and to alternately supply one of the generated common voltages in sequence to the pixels per frame, the source driver being configured to output a source driving signal in response to a data signal in accordance with a level of the common voltage supplied by the common voltage generator.07-05-2012
20120249619DISPLAY DEVICE - In a liquid crystal display device (10-04-2012
20120176426DISPLAY DEVICE AND METHOD OF DRIVING THE SAME - The display device including pixels has formed therein at least two drive blocks each made up of pixel rows. Each of the pixels includes: a drive transistor; a capacitor element, a luminescence element; a first switching transistor which causes conduction between the gate of the drive transistor and a fixed potential line; and a second switching transistor which causes conduction between the source of the drive transistor and the capacitor element. Each of the pixels further includes a third switching transistor which connects a pixel in a k-th drive block and a first signal line or a fourth switching transistor which connects a pixel in a (k+1)-th drive block and a second signal line.07-12-2012
20120075363PIXEL AND ORGANIC LIGHT EMITTING DISPLAY USING THE SAME - A pixel of an organic light emitting display in which the pixel includes: a first transistor including a first electrode coupled to a first power source, a second electrode, and a gate electrode coupled to a first node; a second transistor including a first electrode coupled to a third power source, a second electrode coupled to the first node, and a gate electrode coupled to a reset control line; a third transistor including a first electrode coupled to the first node, a second electrode coupled to a fourth power source, and a gate electrode; a fourth transistor including a first electrode coupled to the gate electrode of the third transistor, a second electrode coupled to a scan line, and a gate electrode coupled to a data line; and an organic light emitting diode (OLED) including an anode electrode coupled to the second electrode of the first transistor, and a cathode electrode coupled to a second power source.03-29-2012
20120229530ACTIVE MATRIX DRIVING DISPLAY DEVICE AND IMAGE DISPLAYING METHOD USING THE SAME - LCD device includes two substrates, a first and second color filters, two liquid crystal layers. The first color filters are formed on portions of the second substrate corresponding to border area The second color filters are formed on portions of the second substrate corresponding to the display area except the border area. A first liquid crystal layer between the first and the second substrate is comprised in border area, and a zero electric field is formed on the first liquid crystal layer so as to completely transmit light incident into the first liquid crystal layer therethrough. A borderline having various colors can be displayed by forming various patterns of color filters having various colors on portions of the second substrate corresponding to the border area under normally white mode, thereby producing picture frame effect while images are displayed on the screen.09-13-2012
20120249618DATA TRANSMISSION SYSTEM FOR DISPLAY DEVICE, DATA TRANSMISSION METHOD FOR DISPLAY DEVICE AND DISPLAY DEVICE - A data transmission system for a display device, which is an mBnB encoding system encoding a signal of m (m is a natural number) bits into a signal of n (n is a natural number and n>m) bits on the basis of a certain translation table to be transmitted thereafter, the system including: an output driver of outputting a gray scale voltage in accordance with the data decoded at a receiver side, in which in the translation table, a bit pattern with a larger data change index from among 210-04-2012
20120249614VISUAL DRIVE CONTROL METHOD AND APPARATUS WITH MULTI PHASE ENCODING - A visual drive control method with multi-phase encoding includes the following steps. A plurality of flickering sequences are generated by an encoding process according to a reference phase and a plurality of shifting phases divided in time division under at least one phase shift state, then a display unit is driven to display corresponding optical images. An optic nerve of an organism is evoked by the optical images, such that the organism generates a corresponding biological signal. Next, a computation process is performed to a digital biological signal converted from the biological signal to acquire an average captured reference phase and an average captured shifting phase of the digital biological signal. Then, the frequencies and the phase states of the digital biological signal and the flickering sequences are compared to output a corresponding control signal. A visual drive control apparatus with multi-phase encoding is disclosed herein.10-04-2012
20120249616DISPLAY DEVICE INCLUDING A DATA SELECTOR CIRCUIT - A display device includes a plurality of gate lines, a plurality of data lines, a gate circuit, a driver, and a data selector circuit that includes a plurality of switch groups each of which has a time division switch and a timing adjustment switch that are connected in parallel. The data selector circuit outputs output signals from the driver, which have different polarities every one or more data lines of the plurality of data lines, to the respective data lines. Each of the time division switches and the timing adjustment switches is an NMOS transistor. The driver turns on the timing adjustment switches connected to the data lines to which positive output signals are output from the driver, earlier than the time division switches connected to the data lines to which negative output signals are output from the driver, by a predetermined period.10-04-2012
20120249615DISPLAY DEVICE AND DRIVING METHOD THEREOF - A method of driving a display device including a plurality of pixels, the method including transmitting a plurality of data signals to first group pixels during a first scan period, simultaneously emitting light through the first group pixels according to a programmed data signal during a first light emitting period adjacent to the first scan period, transmitting a plurality of data signals to second group pixels, different from the first group pixels, during a second scan period, and simultaneously emitting light through the second group pixels according to a programmed data signal during a second light emitting period adjacent to the second scan period. A first field including the first scan period and the first light emitting period and a second field including the second scan period and the second light emitting period are temporally divided.10-04-2012
20120256978METHOD OF DRIVING PLASMA DISPLAY DEVICE, PLASMA DISPLAY DEVICE, AND PLASMA DISPLAY SYSTEM - An address period is shortened while degradation of image display quality of a plasma display apparatus is suppressed. For this purpose, in a driving method for a plasma display apparatus, the following operation is performed. A field for the right eye and a field for the left eye are alternately displayed on the plasma display panel. In each of the field for the right eye and the field for the left eye, a subfield having a smallest luminance weight occurs first, a subfield having a largest luminance weight occurs next, and the other subfields occur thereafter. In the subfield having the smallest luminance weight and the subfield having the largest luminance weight, one-line address operation for applying a scan pulse to each scan electrode is performed. In the other subfields, two-line simultaneous address operation for applying a scan pulse simultaneously to two adjacent scan electrodes is performed.10-11-2012
20120256977METHOD OF DRIVING A DISPLAY PANEL AND A DISPLAY APPARATUS PERFORMING THE METHOD - A method of driving a display panel includes driving a first sub area and a second sub area of a pixel part in a two-dimensional (2D) image mode, wherein a first luminance difference exists between the first and second sub areas in the 2D image mode, and driving the first sub area and the second sub area of the pixel part in a three-dimensional (3D) image mode, wherein a second luminance difference exists between the first and second sub areas in the 3D image mode, the second luminance difference being smaller than the first luminance difference.10-11-2012
20090021540Boundary Dispersion for Mitigating PWM Temporal Contouring Artifacts in Digital Displays - A method and system providing boundary dispersion to pixel values displayed on a binary spatial light modulator to reduce temporal contouring artifacts. Pixel code values are offset from a nominal value when displayed on the SLM to disperse a large bit transition for a pulse width modulation (PWM) system. The offset value varies as a function of the pixel digital code, the pixel spatial location on the screen, and pixel temporal location in time. The set of offsets applied to pixels is varied over a repeating sequence of 2 displayed frames.01-22-2009
20120262506PULSE-WIDTH MODULATION CONTROL FOR BACKLIGHTING OF A VIDEO DISPLAY - A pulse-width modulated backlight control for a video display restarts the pulse-width modulated pulse train on occurrence of a video refresh pulse. In order to prevent an undesirable momentary increase in brightness in the event that the last pulse of the pre-refresh pulse train occurs too close to the first pulse of the post-refresh pulse train relative to the normal pulse interval, the width of the first pulse following refresh may be reduced from a first value determined by the desired brightness to a second value that bears the same proportion to the first value that the interval between the beginning of the previous pulse and the occurrence of the refresh pulse bore to the normal pulse interval. In that way, the duty cycle during the shortened pulse interval is the same as during a normal pulse interval, avoiding or minimizing perceptible increase in backlight brightness.10-18-2012
20120262504DISPLAY CONTROL METHOD AND DEVICE FOR LIQUID CRYSTAL DISPLAY SCREEN - A method and apparatus for controlling the display of a liquid crystal display are provided. The method comprises: receiving an image to be displayed (10-18-2012
20120262505METHOD OF CONTROLLING ELECTRO-OPTICAL DEVICE, CONTROL DEVICE FOR ELECTRO-OPTICAL DEVICE, ELECTRO-OPTICAL DEVICE, AND ELECTRONIC APPARATUS - A method of controlling an electro-optical device includes, during image rewriting, executing a first control operation to supply a potential different from a potential on a counter electrode to a pixel electrode of a first pixel in a plurality of frame periods, executing a second control operation to supply the same potential as the potential on the counter electrode to a pixel electrode of a second pixel, which is adjacent to the first pixel and in which a gradation to be displayed during image rewriting is not changed, in at least some frame periods of a plurality of frame periods, and executing a third control operation to supply a potential different from the potential on the counter electrode to the pixel electrode of the second pixel in a frame period after the potential has been supplied in at least one frame period during the first control operation.10-18-2012
20110037792METHOD FOR DRIVING PLASMA DISPLAY PANEL AND PLASMA DISPLAY DEVICE - An object is to provide a method for driving a PDP, which may be a super high-definition panel, and a PDP device capable of assuring the sufficient number of subfields to maintain the image quality and displaying images with the sufficient luminance.02-17-2011
20120092396LUMINANCE BALANCING - A composite display is disclosed. In some embodiments, a composite display comprises a paddle configured to sweep out an area and a plurality of pixel elements mounted on the paddle. Selectively activating one or more of the plurality of pixel elements while the paddle sweeps the area causes at least a portion of an image to be rendered. In some embodiments, a characteristic of at least one pixel element of the plurality of pixel elements that is associated with balancing luminance across at least a portion of the composite display associated with the paddle is based at least in part on a radial distance of the one pixel element from an axis of rotation of the paddle.04-19-2012
20100053234DRIVING OF ELECTROWETTING DISPLAYS - The invention relates to a method of driving an electrowetting display which includes a plurality of electrowetting elements, the display comprising at least one first fluid and a second fluid immiscible with each other, each of the electrowetting elements comprising at least one surface area. In a first, relatively low voltage, driving state of an electrowetting element the second fluid tends to cover the at least one surface area, and in a second, relatively high voltage, driving state of an electrowetting element the first fluid tends to cover the at least one surface area. The method comprises: providing a voltage booster circuit to generate a voltage signal to be applied across one or more selected ones of the plurality of electrowetting elements; and during driving of the one or more selected elements in the second driving state, selectively switching the voltage booster circuit on and off such that the voltage booster circuit is operative only some of the time and the voltage signal includes a voltage ripple variation. The invention further relates to electrowetting display apparatus adapted to perform the method of the invention.03-04-2010
20120139977Organic Light Emitting Diode Display and Method for Driving the Same - Embodiments of the invention relate to an organic light emitting diode (OLED) display and a method for driving the same. The OLED display includes a data driving circuit configured to output a data voltage to the display panel; a scan driving circuit configured to sequentially output a scan pulse synchronized with the data voltage to a display panel; and a timing controller configured to decide whether or not the multicolor data are inputted, to control the scan driving circuit and the data driving circuit in a normal mode when the multicolor data are inputted, and to control the scan driving circuit and the data driving circuit in a current saving mode when the multicolor data are not inputted.06-07-2012
20130016141METHOD AND APPARATUS OF COMPENSATING IMAGE IN A BACKLIGHT LOCAL DIMMING SYSTEMAANM CHANG; Chih-KaiAACI Taichung CityAACO TWAAGP CHANG; Chih-Kai Taichung City TWAANM WU; Yu-LiAACI Hsinchu CityAACO TWAAGP WU; Yu-Li Hsinchu City TW - An apparatus compensates image in a backlight local dimming system for estimating pixels of the image after backlight spreading of a plurality of backlight sources in the backlight local dimming system. The apparatus includes a block dimming value decision unit, a quality/power-saving priority decision unit, a temporal filter, a backlight spread approximation unit, and an image compensation unit. The block dimming value decision unit calculates an average value, a maximum value and a initial value for each image block. The quality/power-saving priority decision unit generates a backlight control signal based on the average value, the initial value, and two thresholds. The temporal filter adaptively generates a backlight pulse width modulation signal based on the backlight control signal. The backlight spread approximation unit generates a backlight spread image based on the backlight pulse width modulation signal. The image compensation unit compensates the image based on the backlight spread image.01-17-2013
20130016142SYSTEMS AND METHODS OF MANAGING METAMERIC EFFECTS IN NARROWBAND PRIMARY DISPLAY SYSTEMS - Several embodiments of display systems that use narrowband emitters are disclosed herein. In one embodiment, a display system comprises, for at least one primary color, a plurality of narrowband emitters distributed around the primary color point. The plurality of narrowband emitters provides a more regular power vs. spectral distribution in a desired band of frequencies.01-17-2013
201101572603D IMAGE DISPLAY DEVICE - A 3-dimensional (3D) image display device includes a liquid crystal panel configured to alternately display a left-eye image and a right-eye image in a cycle of unit frame period, a data driving circuit configured to drive data lines of the liquid crystal panel, a gate driving circuit configured to drive gate lines of the liquid crystal panel, a timing controller configured to divide the unit frame period into N sub-frame periods for each of the left-eye image and the right-eye image, where N is an integer equal to or greater than 2, a plurality of light sources configured to generate light to be radiated to the liquid crystal panel, a light source control circuit configured to generate a backlight control signal to control a turn-on time of the plurality of light sources, and a light source driving circuit configured to turn off all the light sources during a first N-1 subframe periods and turn on all the light sources during a last subframe period.06-30-2011
20110157259LAMP ON/OFF OPERATION CONTROL METHOD, CLOCK GENERATION METHOD, CLOCK GENERATION CIRCUIT, LIGHT SOURCE CONTROL CIRCUIT, AND DISPLAY DEVICE - A PLL as a clock generation circuit that generates a PWM clock based on a reference clock, which PWM clock is used for controlling, in a pulse width modulation method, a lamp on time and a lamp off time of a light source illuminating a liquid crystal panel by synchronizing with a video signal that performs display in a set period on the liquid crystal panel, includes a configuration that generates a PWM clock that can maintain a fixed ratio of the lamp on time to the lamp off time within one period even if the set period is changed, by changing a pulse interval of the reference clock in conjunction with the change in the set period.06-30-2011
201300213912D and 3D Compatible Receiving Device and Receiving Method of the Same - A 2D and 3D compatible receiving device includes a signal receiving module, a signal process module, an adjustable receiving mode module, a left shutter control module, a right shutter control module, a left shutter, a right shutter and a receiving mode status display so as to allow the user to freely view a 3D or a 2D content without change to the exterior display.01-24-2013
20080225062Drive Circuit, Display Apparatus, and Method for Adjusting Screen Refresh Rate - A display apparatus and a drive circuit for adjusting a screen refresh rate of the display apparatus and a method thereof are disclosed. The display apparatus comprises an OLED diode display array and a drive circuit. The drive circuit comprises a detection unit, a clock generating unit, and a timing control unit. The detection unit determines whether a plurality of frames displayed by the OLED diode display array are configured as a dynamic frame. The detection unit generates a first control signal when the displayed frames are not configured as a dynamic frame, and the detection unit generates a second control signal when the displayed frames are configured as a dynamic frame. The clock generating unit generates a clock signal, the frequency of which is a first frequency in response to the first signal, or a second frequency in response to the second signal. The first frequency is greater than the second frequency. The timing control unit sets the screen refresh rate of the display apparatus in response to the frequency of the clock signal.09-18-2008
20130169704IMAGE DISPLAY APPARATUS - An image display apparatus according to the present disclosure includes: an image display panel; a backlight device; a first optical element located between the image display panel and the backlight device and configured to deflect a light incident thereon; a second optical element located between the first optical element and the image display panel and configured to change a deflection angle of emitted light according to a voltage applied thereto; a plurality of first lenses located between the first optical element and the backlight device; a plurality of second lenses located between the second optical element and the image display panel; a position detection section configured to detect a viewing position of a viewer; and a control section configured to control the voltage applied to the second optical element, according to the detected viewing position. The first lenses and the second lenses constitute an afocal optical system.07-04-2013
20130176353IMAGE DISPLAY APPARATUS AND METHOD - An image display apparatus and method are provided. The image display apparatus includes an image analyzing unit which inserts an insertion frame into an image of a color sequence and outputs an image of a color sequence in which the insertion frame is inserted, and changes a position of the insertion frame based on at least one dominant color and outputs an image in which the position of the insertion frame is changed, a display panel which receives the image of the color sequence, in which the insertion frame is inserted, from the image analyzing unit and displays the received image, and a backlight unit which receives information for the color sequence, in which the insertion frame is included, from the image analyzing unit and provides light of a color corresponding to the color sequence, in which the insertion frame is included, according to the received information.07-11-2013
20130169703DRIVER UNIT FOR ELECTRO-OPTICAL DEVICE, ELECTRO-OPTICAL DEVICE, ELECTRONIC EQUIPMENT, AND METHOD FOR DRIVING ELECTRO-OPTICAL DEVICE - A liquid crystal display device is configured so that one frame is divided into two fields and a pixel of a liquid crystal panel is driven. The liquid crystal display device performs overdrive when a gray-scale level to be supplied to the pixel is different between a previous frame and a current frame. The liquid crystal display writes a voltage corresponding to the gray-scale level of the pixel with a positive voltage in a first field, and writes a voltage corresponding to the gray-scale level to be supplied to the pixel with a negative voltage in a second field. When performing overdrive, the liquid crystal display device performs overdrive in both of the first field and the second field. Also, when performing overdrive, the liquid crystal display device corrects the gray-scale level to be supplied to the pixel.07-04-2013
20130113849DISPLAY APPARATUS AND DRIVING METHOD THEREOF - A display apparatus is provided. A display apparatus includes a display panel which displays a 3D image with a left-eye image frame including a plurality of subfields and a right-eye image frame including a plurality of subfields, a driving unit which drives the display panel and a control unit which controls the driving unit to drive remaining subfields in advance as much as a subfield section of a plurality of subfields which are unused when an image having a grayscale level less than a predetermined value is being displayed.05-09-2013
20130113848DISPLAY DEVICE AND DRIVING METHOD OF DISPLAY DEVICE - A method of driving a display device includes analyzing input data of the display device to confirm whether there is a predetermined image pattern in an image corresponding to the input data, where a common voltage is distorted to an extent that a clock signal for a gate driver of the display device is distorted when the display device displays the image including the predetermined image pattern, and changing a slew rate of an output buffer of a data driver of the display device based on a result of the analyzing the input data.05-09-2013
20130100181DIGITAL HOLOGRAM IMAGE REPRODUCING DEVICE AND SYNCHRONIZATION CONTROL METHOD THEREOF - A digital hologram image reproducing device includes a light modulator reproducing a hologram interference fringe image, a first panel driving circuit which scans a first display panel and writes data of the hologram interference fringe image to the first display panel, a first timing controller controlling an operation timing of the first panel driving circuit, a second panel driving circuit which scans a second display panel and writes data of the hologram interference fringe image to the second display panel, a second timing controller controlling an operation timing of the second panel driving circuit, and a panel synchronization circuit which simultaneously transfers a polarity control signal received from one of the first and second timing controllers to the first and second panel driving circuits.04-25-2013
20130100180COLOR LCOS DISPLAY CHIP AND CONTROL METHOD - The present invention relates to a color LCOS display chip and the drive and control method thereof. With new structure design and drive and control method, the video signal nonlinear correcting chip, display drive signal control chip and other high cost special chips which are used in conventional control and drive circuit are abandoned. Multiple systems are integrated in a single chip to save PCB required for combination of multi-system chips, which leads to a lower production cost. The weight and size of control and drive circuit are reduced due to fewer integrated circuit chips and save of PCB. Power consumption is reduced without nonlinear correcting chips and display drive signal control chips. With the finite state machine (FSM) Scheduler as the core of digital signal processing module, the voltage coding value could be adjusted as per nonlinear characteristics of different crystal materials so as to achieve an optimal nonlinear correcting performance, which enhances the universality of the chip.04-25-2013
20110267386DISPLAY CONTROL DRIVE DEVICE AND DISPLAY SYSTEM - A display control drive device sequentially reads display data from a display memory in which the display data is stored, produces three primary color image signals that are applied to pixel locations in a dot-matrix color display device, and transmits the signals through a common external output terminal in a time-sharing manner. The display control drive device produces control signals applied to selection switching elements in the display device and that selectively apply an input image signal to any of three source lines. The display control drive device includes: a unit that determines one horizontal period based on a clock received from outside synchronously with display data; and a signal production circuit that produces and transmits the control signals, applied to the selection switching elements, so that the control signals will have a pulse duration equivalent to a time calculated by trisecting one horizontal period.11-03-2011
20130127932PIXEL, DISPLAY DEVICE AND DRIVING METHOD THEREOF - A pixel, a display device using the pixel and a method of driving the display device are provided. The pixel may include an organic light emitting diode, a driving circuit for generating and transmitting driving current depending on data signals to the organic light emitting diode, and at least one switch connected between a power wire for applying a first voltage to the organic light emitting diode and a data line for transmitting the data signals. The at least one switch may include a compensating circuit for electronically connecting the power wire to the data line for a predetermined period to transmit the first voltage through the data line.05-23-2013
20130127934MULTIPLE RATE PROJECTOR - A multiple rate projector comprises at least three different color light sources each configured to emit a different color of light, respectively. A color control module is coupled to the at least three different color light sources, and is configured to switch the at least three different color light sources on, respectively, to allow turn-on times of two of the at least three different color light sources to be overlapped or not overlapped. Overlapped turn-on times can be overlapped by a half cycle, or longer or shorter than a half cycle, of the on cycle of each of the respective different color light sources. A two-dimension reflector reflects light from the different color light sources to a projection location (e.g., on a projection screen).05-23-2013
20130141479Method and Circuit for Synchronizing Input and Output Synchronization Signals, Backlight Driver of Liquid Crystal Display Device Using the Same and Method for Driving the Backlight Driver - Disclosed are method and circuit for synchronizing input and output synchronization signals, which can synchronize an output synchronization signal based on frequency change of an input synchronization signal and limit input and output periods, thereby preventing flickering, a backlight driver of a liquid crystal display device using the same, and a method for driving the backlight driver. The method for synchronizing input and output synchronization signals, includes generating an output synchronization signal whose output period is set based on a comparison result between an input period of an input synchronization signal and a previous output period of the output synchronization signal, and limiting the output period of the output synchronization signal within a predefined limit range from the previous output period.06-06-2013
20110273492DISPLAY APPARATUS AND DISPLAY PANEL DRIVING METHOD - An apparatus includes a display panel, a scanning circuit, a modulation circuit and a potential generation circuit. The display panel includes a matrix wiring including a plurality of row wirings and column wirings, an electron source connected to the matrix wiring, a display member opposed to the electron source, an anode provided on the display member in an overlapping manner, and a feeding member connected to the anode in a joint portion, a scanning circuit, connected to the plurality of row wirings, a modulation circuit configured to output a modulated potential to the plurality of column wirings, and a potential generation circuit configured to output a first potential, which is higher than a potential of the electron source, to the feeding member during the first selected time period and a second potential, which is higher than the first potential, to the feeding member during the second selected time period.11-10-2011
20110221798LINE MULTIPLYING TO ENABLE INCREASED REFRESH RATE OF A DISPLAY - This disclosure provides systems, methods, and apparatus for reducing a frame write time or increasing a refresh rate of a display. In one aspect, displays may include a plurality of pixels arranged along segment lines and common lines, and all or a portion of the display may be driven in a manner which simultaneously addresses multiple common lines. Display resolution or color range of all or a portion of the display may thus be temporarily sacrificed in exchange for a reduced frame write time, enabling the use of higher refresh rates.09-15-2011
20130147864Timing Controller, Liquid Crystal Display Device Having the Same, and Driving Method Thereof - A timing controller capable of adjusting luminance of a maximum gradation according to an amount of white of image data to thus enhance picture quality and reduce power consumption of a liquid crystal display device, a liquid crystal display device having the same, and a driving method thereof are provided. The timing controller includes: a gamma adjusting unit for receiving image data and a plurality of driving signals input from the outside, generating a gate control signal and a data control signal according to the plurality of driving signals, adjusting luminance according to an amount of white in the image data, and generating a corresponding gamma control signal.06-13-2013
20100302289BACKLIGHT DEVICE AND DISPLAY APPARATUS HAVING THE SAME - In a backlight device and a driving method thereof, a voltage controller controls a voltage level of a first input voltage in response to a dimming signal to output a second input voltage. A pulse generator receives the second input voltage from the voltage controller and generates a pulse signal having a duty ratio corresponding to the dimming signal and a high voltage level corresponding to the second input voltage. An inverter generates a lamp driving signal based on the pulse signal. At least one lamp included in the backlight device is turned on or turned off in response to a lamp driving signal to adjust luminance of the backlight device.12-02-2010
20100309237METHOD AND DEVICE FOR DRIVING A PLURALITY OF DISPLAY DEVICES - A device includes a plurality of display modules configured to commonly receive a stream of video data from a controller and a video control masking unit. Each display module includes a display device. The video control masking unit receives one or more control signals that indicate how the video data is to be displayed by the display modules, and further receives at least one of: a clock signal for clocking the stream of video data that is provided in common to the plurality of display modules, and a data enable signal for enabling the display modules to process the video data; and in response thereto the video control masking unit masks at least one of the clock signal and the data enable signal to generate a plurality of masked signals each corresponding to one of the display modules, and provides each of the masked signals to the corresponding display module.12-09-2010
20100309236LIQUID CRYSTAL DISPLAY - An LCD has a drive power supply structure simplified to simplify manufacturing processes of LCDs and to reduce manufacturing costs thereof. The LCD includes a liquid crystal panel, a drive unit, a controller, a backlight drive unit, and a drive voltage generator. The liquid crystal panel includes image display regions. The drive unit drives gate and data lines in the panel. The controller controls the drive unit using image data and synchronization signals from outside. The drive voltage generator is provided on a system or at least one source printed circuit board on which at least one of the drive unit or the controller is formed and converts a voltage level of a drive power provided from outside to generate drive powers of different voltage levels and provides the drive powers to the drive unit, the controller, and the backlight drive unit.12-09-2010
20100309235DISPLAY CONTROL DEVICE WITH FRAME RATE CONTROL - A display control device uses frame rate control, and converts m-bit input data (m is an integer) representing brightness of each pixel, to n-bit output data (n is an integer, n12-09-2010
20120274678PROJECTION APPARATUS, PROJECTION METHOD, AND STORAGE MEDIUM HAVING PROGRAM STORED THEREON - light emission state of each of the plurality of different types of light-emitting elements is controlled in accordance with i) a color image formation period in which a color image is formed by using light emitted from The different types of light-emitting elements, ii) a synchronization period in which at least two different types of light-emitting elements are simultaneously driven to output a synchronization signal synchronized with projection timing of a left-eye image or a synchronization signal synchronized with projection timing of a right-eye image, and iii) off-state periods between which the synchronization period is interposed, and in which all the light-emitting elements are in the off-state.11-01-2012
20120274677DISPLAY APPARATUS AND CONTROL METHOD THEREOF - A display apparatus according to the present invention comprises a display panel having a transmittance that can be changed for each frame of an input video signal, an adjusting unit that adjusts a timing at which the transmittance of the display panel changes, and a backlight unit that emits light in a period corresponding to a period of an applied alternating-current voltage, wherein the adjusting unit adjusts the timing at which the transmittance of the display panel changes on the basis of the period of the alternating-current voltage.11-01-2012
20130155127THREE-DIMENSIONAL IMAGE DISPLAY DEVICE AND DRIVING METHOD THEREOF - A 3D image display device is provided. The 3D image display device includes a display panel, a filter, a filter driver and a timing controller. The filter is disposed at a front surface of the display panel and comprises a light transmitting area for transmitting an images and a light blocking area for blocking an images. The timing controller converts a received 3D image into a copied 3D image, outputs the copied 3D image through the display panel in units of a frame, and controls the filter driver for switching between a position of the light transmitting area and a position of the light blocking area in units of a frame.06-20-2013
20130155128LIGHT SOURCE DEVICE HAVING FIRST LIGHT SOURCE, SECOND LIGHT SOURCE, AND CONTROL SECTION TO CONTROL DRIVE TIMING OF FIRST LIGHT SOURCE AND SECOND LIGHT SOURCE SUCH THAT DRIVE PATTERN OF SECOND LIGHT SOURCE IS INVERSION OF DRIVE PATTERN OF FIRST LIGHT SOURCE, AND PROJECTION APPARATUS AND PROJECTION METHOD WHICH UTILIZE SAID LIGHT SOURCE DEVICE - A light source device includes a first light source configured to emit light within a first wavelength band, a second light source configured to emit light within a second wavelength band, and a light source control section configured to control drive timing of the first light source with a first drive pattern, and to control drive timing of the second light source with a second drive pattern which is an inverted pattern of the first drive pattern of the first light source, such that a light emission period for light-source light using light emitted by the second light source is positioned between light emission periods for the light-source light emitted by the first light source, and such that a frequency of the light-source light using light emitted by the second light source is higher than a frequency of light emitted by the first light source.06-20-2013
20120281032PLASMA DISPLAY DEVICE, PLASMA DISPLAY SYSTEM AND PLASMA DISPLAY PANEL DRIVING METHOD - In a plasma display apparatus capable of displaying an image for stereoscopic view, the image display quality is enhanced. For this purpose, the plasma display apparatus includes a driver circuit and a timing generation circuit. The driver circuit drives the plasma display panel by alternately repeating a field for the right eye and a field for the left eye. The timing generation circuit generates shutter opening/closing timing signals. The driver circuit applies the sustain pulses equal in number to the luminance weight multiplied by a luminance magnification to each scan electrode and each sustain electrode, in the subfields except the first subfield. In the first subfield, the driver circuit applies the sustain pulses greater in number than the luminance weight multiplied by the luminance magnification to each scan electrode and each sustain electrode.11-08-2012
20130187960LIQUID CRYSTAL DISPLAY AND METHOD OF DRIVING THE SAME - A liquid crystal display (“LCD”) includes: a liquid crystal panel, a timing controller which receives previous image data and current image data, corrects or does not correct the current image data according to a reference bit of conversion image data generated using the previous image data, and outputs a display image signal to the liquid crystal panel, and a data driver which receives the display image signal and applies a data voltage corresponding to the display image signal to the liquid crystal panel.07-25-2013
20130194322DISPLAY APPARATUS AND DISPLAY METHOD THEREOF - A display apparatus is provided. The display apparatus includes a display unit that includes a plurality of pixels and is configured to display at least one image frame by illuminating the plurality of pixels on a pixel basis; a motion measuring unit that measures a motion per pixel of the at least one image frame by comparing a plurality of image frames to be displayed on the display unit; and a controller that adjusts a light emission intensity and a light emission time per pixel of the display unit according to a magnitude of the measured motion.08-01-2013
20120038690STEREOSCOPIC IMAGE DISPLAY AND METHOD FOR DRIVING THE SAME - A stereoscopic image display and a method for driving the same are disclosed. The stereoscopic image display includes a display panel that displays a 2D image data in a 2D mode and displays a 3D image data in a 3D mode, a backlight unit providing light to the display panel, a timing controller that supplies a left eye image data during a data addressing period of a (2N−1)th frame period and supplies a right eye image data during a data addressing period of a 2Nth frame period in the 3D mode, where N is a natural number, and a backlight controller generating a backlight control signal for controlling light sources of the backlight unit so that the light sources of the backlight unit are turned on during a vertical blanking interval of each of the (2N−1)th frame period and the 2Nth frame period in the 3D mode.02-16-2012
20120299985Luminous Intensity Distribution System and Stereoscopic Image Display Device - A luminous intensity distribution system includes a first optical element extending in a first direction, and distributes, given that a first direction is taken to be leftward-rightward when viewed frontward-rearward, light having entered a light-incident surface from a right-rear direction and emits the light through a light-emitting surface toward a right-forward direction when viewed from the frontward end, and distributes light having entered the light-incident surface from a left-rear direction and emits the light through the light-emitting surface toward a left-forward direction when viewed from the frontward end; and a second optical element extending in the first direction and that diffuses light having entered the light-incident surface and emits the light through the light-emitting side, with the first optical element and the second optical element being arranged in parallel with each other vertically when viewed frontward-rearward.11-29-2012
20120081419IMAGE DISPLAY APPARATUS AND CONTROL METHOD THEREOF - An image display apparatus comprises: a liquid crystal panel; a backlight system divided into a plurality of blocks; and a control unit that controls emission of each block of the backlight system. The control unit analyzes an inputted video image signal and detects motion in a video image to be displayed at each of the portions of the display screen corresponding to each of the plurality of blocks, and controls emission time and emission intensity of each block in such a manner that in a block corresponding to a video image of little motion, the emission time is made relatively longer and the emission intensity is made relatively smaller, and in a block corresponding to a video image of significant motion, the emission time is made relatively shorter and the emission intensity is made relatively larger.04-05-2012
20120086742DISPLAY APPARATUS - A gradation display apparatus includes: a plurality of pixels, each including a light emitting element, a driving transistor, and a storage capacitor; a data line; a reference voltage line; and a control circuit. During a one frame period, the control circuit supplies a data voltage to each of the pixels through the data line, to write the data voltage in the storage capacitor, and, thereafter, supplies to the reference voltage line respectively different first and second voltages successively in this order or reversed order, so that, in each of the pixels, a sum of a light emitting quantity of the light emitting element during a period of supplying the first voltage and a light emitting quantity of the light emitting element during a period of supplying the second voltage equals to a predetermined light emitting quantity of the light emitting element predetermined according to image data.04-12-2012
20130208029Method for Realizing Dual Operation Mode Liquid Crystal Display Device - A method for realizing a dual operation mode liquid crystal display device includes: (08-15-2013
20130208030ACTIVE MATRIX LIGHT-EMITTING DIODE DISPLAY SCREEN PROVIDED WITH ATTENUATION MEANS - An active matrix light-emitting diode display screens, and in particular those with organic diodes is discussed. The display screen includes an active matrix of pixels, each pixel including a light-emitting diode, a control MOS transistor for applying a variable voltage or current to the anode of the diode, a selection transistor for applying a variable analog voltage representing a relative level of luminance of the pixel in the image, to the gate of the transistor, during a write phase of this pixel, a storage capacitor for maintaining this voltage on the gate of the transistor outside the write phase. A mean luminance attenuation circuit including a switch for periodically connecting one of the electrodes of the diode, preferably the cathode, to one or other of two fixed potentials, and a switch control circuit for switching with a variable duty cycle according to the desired attenuation.08-15-2013

Patent applications in class Temporal processing (e.g., pulse width variation over time

Patent applications in all subclasses Temporal processing (e.g., pulse width variation over time