Patent application number | Description | Published |
20080204399 | DRIVING METHOD FOR ELECTROPHORETIC DISPLAY - A driving method for an electrophoretic display including first electrodes, a second electrode, and electrophoretic particles positioned in pixel areas, includes applying a reset voltage to the particles, applying a reset compensation voltage having an opposite polarity to that of the reset voltage to the particles after applying the reset voltage, applying an image displaying compensation voltage having a same polarity as the reset compensation voltage to the particles positioned in at least one of the pixel areas after applying the reset compensation voltage, and applying an image displaying voltage having an opposite polarity to that of the image displaying compensation voltage to the particles positioned in the at least one of the pixel areas. Accordingly, the pixel electrode may be refreshed without inversed images such that the display performance of the electrophoretic display may be improved. | 08-28-2008 |
20080224992 | ELECTROPHORETIC DISPLAY AND METHOD OF DRIVING THE SAME - In an electrophoretic display, a display panel includes a first electrode receiving a data voltage, a second electrode receiving a common voltage while facing the first electrode and a plurality of pixels each of which includes charged particles arranged between the first electrode and the second electrode. The display panel receives the data voltage in response to a gate signal at a high state during a data output period to display an image, maintains a current image in response to the gate signal at a low state during a maintaining period, and receives a refresh voltage in response to the gate signal at the high state to reset the image. Thus, the electrophoretic display may prevent distortion of the image during the maintaining period. | 09-18-2008 |
20080246739 | Touch Sensitive Display Device, Apparatus and Method for Driving the Same - A touch sensitive display device has a driving apparatus. The driving apparatus includes at least one of a plurality of stages, and each stage includes an input section, a middle processing unit, an output voltage generator, and an output path selection unit. The input section outputs a first voltage in response to an output signal from a previous stage or a scanning start signal. The middle processing unit outputs a second voltage in response to one of the plurality of clock signals or an output signal from a next stage. The output voltage generator charges the first voltage and generates the output signal in response to the first voltage from the input section and the second voltage from the middle processing unit. The output path selecting unit selects an output path for the output signal from the output voltage generator. Accordingly, the structure of the display device can be simplified. | 10-09-2008 |
20080246779 | DRIVING APPARATUS OF DISPLAY DEVICE, DISPLAY DEVICE INCLUDING THE SAME, AND METHOD OF DRIVING DISPLAY DEVICE - The driving apparatus of a display device calculates a slope using a minimum gray, a maximum gray, a gray average of frame data in a current frame, and a gray average of frame data in a previous frame, and corrects and outputs the input frame data according to the slope, using frame data of one frame. As a result, a gray range of the input image signal can be extended, thereby improving visibility. Further, in a case of a motion picture, even when a difference of a gray range of images of adjacent frames is large, an original image is not distorted due to extension of a gray range. Also, even when noise is included in the input image signal, a gray range can be extended after removing the noise. | 10-09-2008 |
20080259021 | METHOD OF DISPLAYING AN IMAGE AND ELECTROPHORETIC DISPLAY DEVICE FOR PERFORMING THE SAME - A method of displaying images on an electrophoretic display (“EPD”) panel includes displaying a (K)-th image on the EPD panel including a plurality of electrophoretic particles, wherein K denotes a natural number. Then, when an interrupt signal for converting images is inputted during one of a plurality of driving intervals, a charge of the electrophoretic particles is compensated, which is charged in correspondence with the (K)-th image displayed on the EPD panel before the interrupt signal is inputted, and then a (K+1)-th image is displayed on the EPD panel. Thus, when the interrupt signal is inputted during one of the driving intervals displaying the (K)-th image data, the charges that are charged in the particles are compensated in correspondence to the (K)-th image data, and then the (K+1)-th image is displayed so that display quality may be enhanced. | 10-23-2008 |
20080278433 | ELECTROPHORETIC DISPLAY AND METHOD THEREOF - An electrophoretic display (“EPD”) includes a display panel displaying an image and a gray-scale generator generating a gray-scale and providing a gray-scale voltage to the display panel. The gray-scale generator generates a gray-scale value of a white color using gray-scale values of red, green and blue colors and a brightness ratio between the red, green and blue colors. When a pure color is displayed, the EPD prevents the gray-scale of the white color from being fixed to 0. Thus, the EPD may enhance a chroma of the pure color and color brightness, thereby improving a display quality thereof. | 11-13-2008 |
20080291527 | DISPLAY DEVICE - An electrophoretic display includes a lower substrate, an upper substrate, a color display layer on the lower substrate, a pixel electrode on the lower substrate, and a common electrode on the lower substrate or the upper substrate. The common electrode does not overlap the pixel electrode, and an electrophoretic active layer having a dispersion medium and electrophoretic particles is arranged between the lower substrate and the upper substrate. The electrophoretic active layer is a single-polarity electrophoretic particle system, and grayscales are generated depending on the number of electrophoretic particles arranged in a portion of the electrophoretic active layer corresponding to the pixel electrode. The position of the electrophoretic particles is controlled by the magnitude of the electric field applied between the pixel electrode and the common electrode. | 11-27-2008 |
20080314652 | Touch sensitive display device, and driving method thereof - A display device having a contact sensing function, and a driving method thereof are disclosed in one embodiment. The driving method of a display device includes reading sense data signals of a current sensing unit row, determining whether the sense data signals are included in a contactable range and converting the sense data signals into preliminary signals that each have a predetermined value based on the determination result, determining whether a sensed area (an X axis sensed area) in an X axis direction exists using the preliminary signals, determining whether the X axis sensed area is effective when the X axis sensed area exists, determining whether a sensed area (a Y axis sensed area) in a Y axis direction exists when the X axis sensed area is effective, determining whether the Y axis sensed area is effective when the Y axis sensed area exists, determining a contact position when the Y axis sensed area is effective, and reading sense data signals of a next sensing unit row when the X axis sensed area or the Y axis sensed area is not effective. | 12-25-2008 |
20080316189 | DISPLAY DEVICE - A display device includes a display panel assembly that includes a plurality of pixels and a plurality of signal lines connected to the pixels, and a driver that includes a plurality of stages connected with one another for sequentially generating output signals in synchronization with a plurality of clock signals. Portions of the plurality of stages output the output signals to the display panel assembly. | 12-25-2008 |
20090009465 | DRIVING APPARATUS FOR A DISPLAY DEVICE AND ELECTROPHORETIC DISPLAY DEVICE INCLUDING THE SAME - An apparatus for driving a display device including first and second signal lines connected to a plurality of pixels, third and fourth signal lines connected to a plurality of sensors, and a display area displaying images includes a data driver to apply a data signal to the first signal line, an image scan driver to apply an image scanning signal to the second signal line, a sensing scan driver to apply a sensing scanning signal to the third signal line, a sensing signal processor connected to the fourth signal line, a signal controller to control the data driver, the image scan driver, the sensing scan driver, and the sensing signal processor, and a memory to store information from the sensing signal processor. The information is displayed and erased on a portion of the display area. | 01-08-2009 |
20090015546 | Electro-optic display device - There is provided an electro-optic display device which can be used in a folder type or in a roll type. The electro-optic display device comprises a substrate including an electro-optic layer having charged color particles and including a gate line and a data line; a timing controller for generating a control signal according to a signal applied from an external unit; and a driving integrated circuit disposed on one side of the substrate, the driving integrated circuit having a gate driver and a data driver for receiving the control signal from the timing controller and for respectively driving the gate line and the data line. | 01-15-2009 |
20090040201 | DEVICE AND METHOD FOR DRIVING ELECTROPHORETIC DISPLAY TO DESIRED OPTICAL STATE - A drive controller for an electrophoretic display includes a data driver for applying image-altering drive signals to selected ones of a plurality of pixels where the driver includes: a memory unit for storing an alteration progress indicator and a target state indicator. In each of predetermined time spans such as successive display frames, image-altering drive signals are applied and the corresponding progress indicators are updated to reflect the application of the image-altering drive signals in the predetermined time spans. When the progress indicators indicate that the image-altering jobs are finished, the driver stops applying the image-altering drive signals to the respective pixels and instead applies a compensating signal to recover their original optical states. Different pixels can be updated in time-overlapping manner so that the electrophoretic display responds to new image commands in real-time. | 02-12-2009 |
20090046052 | ELECTROPHORETIC DISPLAY DEVICE AND METHOD OF DRIVING SAME - An electrophoretic display (“EPD”) device includes an EPD panel to display an image, and a driving circuit to drive the EPD panel. To display an individual image, the driving circuit supplies a first refresh signal to display a black gray scale, a second refresh signal to display a white gray scale, an inverse image data signal to display an inversed image of the individual image, an image data signal to display the individual image, and a reset signal to provide a direct current unbalance between the first and second refresh signals to the EPD panel. | 02-19-2009 |
20090046114 | APPARATUS 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 |
20090058846 | METHOD FOR DRIVING AN ELECTROPHORETIC DISPLAY - The display of after-images is prevented in an electrophoretic display by applying one gray of at least three different grays through at least some of the pixels, applying a middle gray through at least some of the plurality of pixels, and applying a final compensation voltage to refresh the plurality of pixels | 03-05-2009 |
20090066636 | ELECTRO-OPTIC DISPLAY DEVICE AND METHOD OF DRIVING THE SAME - Disclosed is an electrophoretic display device including an electrophoretic display panel, a gate driver to supply a scan signal to a gate line of the electrophoretic display panel for a longer time during a refresh period than during a data output period, a data driver to supply at least one of a refresh voltage and a data voltage to a data line of the electrophoretic display panel, and a timing controller to supply a gate control signal and a data control signal to the gate driver and the data driver, respectively, and a method of driving the electrophoretic display device. | 03-12-2009 |
20090096744 | DISPLAY DEVICE AND GAMMA DATA ADJUSTING METHOD THEREOF - A display device including a display panel which displays an image, a signal controller which comprises a gamma data storing unit, and receives an external signal to drive the display panel. The signal controller extracts a gamma data signal from the external signal, stores the gamma data signal in the gamma data storing unit, and controls displaying of an image based on the gamma data signal to the display panel. | 04-16-2009 |
20090174829 | LIQUID CRYSTAL DISPLAY APPARATUS - In the provided liquid crystal display apparatus, a first switching element receives a first data signal and a second switching element receives a second data signal having a polarity opposite that of the first data signal. A first pixel electrode is electrically connected to the first switching element to receive the first data signal and a second pixel electrode is electrically connected to the second switching element to receive the second data signal. The second pixel electrode faces the first pixel electrode and is electrically insulated from the first pixel electrode. A liquid crystal layer has liquid crystal molecules aligned in response to the first and second data signals applied to the first and second pixel electrodes, respectively. Thus, the liquid crystal display apparatus may prevent afterimages on a screen thereof and a flickering phenomenon. | 07-09-2009 |
20090231266 | ELECTROPHORETIC DISPLAY APPARATUS AND OPERATING METHOD THEREOF - Disclosed are embodiments of an electrophoretic display apparatus and an operating method thereof. According to one or more embodiments, an update voltage compensating for the degradation of an image is applied to a related pixel after a predetermined time interval elapses, when a plurality of images are consecutively displayed on one screen. Thus, the update voltage may be prevented from being applied to the pixel before the image degradation occurs, thereby preventing the pixel from being over-charged. | 09-17-2009 |
20090244105 | METHOD OF DRIVING ELECTROPHORETIC DISPLAY - The present invention relates to a driving method of an electrophoretic display. The driving method of the electrophoretic display includes displaying a first gray at a first pixel and a second pixel, where a target gray of the first pixel is the first gray and a target gray of the second pixel is a second gray, and changing the second pixel from the first gray to the second gray. | 10-01-2009 |
20090251404 | ELECTROPHORETIC DISPLAY AND DRIVING METHOD THEREOF - An electrophoretic display includes first and second gate lines, a data line that crosses the first and second gate lines, a first pixel connected to the first gate line and the data line, and a second pixel positioned on the opposite side of the data line from the first pixel and connected to the second gate line and the data line. | 10-08-2009 |
20090273747 | LIQUID CRYSTAL DISPLAY AND METHOD FOR MANUFACTURING THE SAME - A liquid crystal display and a manufacturing method thereof, including: a first substrate; a thin film transistor formed on the first substrate; a pixel electrode connected to the thin film transistor; a second substrate facing the first substrate; a first spacer formed on the second substrate and overlapping the thin film transistor; a second spacer formed on the second substrate and overlapping the pixel electrode; a common electrode formed on the second substrate, the first spacer, and the second spacer; and a liquid crystal layer disposed between the first substrate and the second substrate, wherein the pixel electrode and the common electrode disposed on the second spacer form a storage capacitor. | 11-05-2009 |
20100007661 | METHOD FOR DISPLAYING A THREE-DIMENSIONAL IMAGE AND THREE-DIMENSIONAL IMAGE DISPLAY DEVICE FOR PERFORMING THE METHOD - A three-dimensional image display device includes a three-dimensional image generator and a display panel. The three-dimensional image generator includes a memory part, a control part, and an output buffer part. The memory part has a lookup table storing pixel-shift data corresponding to a plurality of viewpoints and depths. The control part stores image data and depth data in an internal memory, and outputs shifted image data based on the pixel-shift data. The output buffer part outputs three-dimensional image data based on the shifted image data. The display panel displays the three-dimensional image data. | 01-14-2010 |
20100103087 | THIN FILM TRANSISTOR ARRAY PANEL AND LIQUID CRYSTAL DISPLAY INCLUDING THE PANEL - A thin film transistor array panel according to an embodiment of the present invention includes: a substrate; a gate line disposed on the substrate and extending in a first direction; a capacitive electrode separated from the gate line and elongated in a second direction; a data line intersecting the gate line; a thin film transistor connected to the gate line and the data line and including a drain electrode; a coupling electrode overlapping the capacitive electrode and connected to the drain electrode; and a pixel electrode including at least one first subpixel electrode connected to the drain electrode and a second subpixel electrode connected to the capacitive electrode and spaced apart from the at least first subpixel electrode by a gap that overlaps the capacitive electrode or the coupling electrode. | 04-29-2010 |
20100141619 | DISPLAY DEVICE - Disclosed is a display device including a substrate having a unit pixel area, a fixed member formed on the substrate to receive a ground voltage, an insulating layer formed on the fixed member, a fixed electrode formed on the insulating layer to receive a common voltage, and a plurality of movable members partially fixed on the insulating layer. The movable members are spaced apart from the fixed electrode at regular intervals, and the plurality of movable members and the fixed electrode are placed within the unit pixel area. | 06-10-2010 |
20100232009 | DISPLAY DEVICE - An electrophoretic display includes a lower substrate, an upper substrate, a color display layer on the lower substrate, a pixel electrode on the lower substrate, and a common electrode on the lower substrate or the upper substrate. The common electrode does not overlap the pixel electrode, and an electrophoretic active layer having a dispersion medium and electrophoretic particles is arranged between the lower substrate and the upper substrate. The electrophoretic active layer is a single-polarity electrophoretic particle system, and grayscales are generated depending on the number of electrophoretic particles arranged in a portion of the electrophoretic active layer corresponding to the pixel electrode. The position of the electrophoretic particles is controlled by the magnitude of the electric field applied between the pixel electrode and the common electrode. | 09-16-2010 |
20110018910 | LIQUID CRYSTAL DISPLAY - A display apparatus includes a plurality of pixels arranged in a matrix array; a plurality of gate lines applying a same gate signal to at least two rows of the pixels; a plurality of data lines crossing the gate lines; a TFT disposed at an intersection of each gate line and each data line; and a light source part sequentially providing at least two colors of light to each pixel every frame, thus enhancing a charging rate of each. | 01-27-2011 |
20110128253 | TOUCH SCREEN DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME - A touch screen display device includes a common electrode, a base substrate disposed opposite to the common electrode, a display signal line formed on the base substrate, a plurality of pixel electrodes, a touch position sensing part formed between the base substrate and the pixel electrodes, the touch position sensing part sensing a change of electrostatic capacitance formed between the common electrode and the touch position sensing part, and a display layer disposed between the common electrode and the pixel electrodes. The display layer includes a plurality of micro capsules comprising positively charged pigment particles and negatively charged pigment particles. | 06-02-2011 |
20110169774 | TOUCH MODULE, DISPLAY DEVICE HAVING THE TOUCH MODULE, AND METHOD FOR DETECTING A TOUCH POSITION OF THE TOUCH MODULE - The present invention relates to a touch module including a light emitting part, a light waveguide, a frustration layer, and a light receiving part. The light emitting part emits light and is disposed along a first direction. The light waveguide includes a first side surface and a second side surface and transmits light incident to the first side surface to the second side surface. The light emitting part is disposed on the first side surface, and the second side surface is disposed opposite to the first side surface along a second direction substantially perpendicular to the first direction. The frustration layer is disposed over the light waveguide and contacts the light waveguide in response to a touch to frustrate a total internal light reflection. The light receiving part is disposed on the second side surface of the light waveguide to detect a position of the touch. The frustration layer includes a plurality of frustration parts, the total internal light reflection is frustrated at a contact surface between a frustration part and the light waveguide, and an area of a first frustration part differs from an area of a second frustration part that is spaced apart from the first frustration part. | 07-14-2011 |
20110221787 | METHOD OF DRIVING DISPLAY PANEL AND DISPLAY APPARATUS FOR PERFORMING THE SAME - A method of driving a display panel, the display panel comprising a plurality of color pixels, each of the color pixels comprising a cholesteric liquid crystal layer, the method including; generating a plurality of color sub-data from color data using a spatial division grayscale algorithm and converting the color sub-data into a data voltages to be provided to the color pixels | 09-15-2011 |
20110248988 | IMAGE CONVERTING DEVICE AND THREE DIMENSIONAL IMAGE DISPLAY DEVICE INCLUDING THE SAME - An image converting device includes; a downscaling unit which downscales a two-dimensional image to generate at least one downscaling image, a feature map generating unit which extracts feature information from the downscaling image to generate a feature map, a visual attention calculating unit which generates a low-level attention map based on a visual attention of the feature map, and an image expansion unit which up-scales the low-level attention map, wherein an increasing gray value may be added to image data disposed on the upper portion in the low-level attention map, and 0 or a decreasing gray value may be added to the image data disposed on the lower portion. | 10-13-2011 |
20110249886 | IMAGE CONVERTING DEVICE AND THREE-DIMENSIONAL IMAGE DISPLAY DEVICE INCLUDING THE SAME - An image converting device includes; a downscaling unit which downscales a two-dimensional image to generate at least one downscaling image, a feature map generating unit which extracts feature information from the downscaling image to generate a feature map, wherein the feature map includes a plurality of objects, an object segmentation unit which divides the plurality of objects, an object order determining unit which determines a depth order of the plurality of objects, and adds a first weight value to an object having the shallowest depth among the plurality of objects, and a visual attention calculating unit which generates a low-level attention map based on visual attention of the feature map. | 10-13-2011 |
20120098872 | METHOD OF DRIVING ELECTROPHORETIC DISPLAY PANEL - A method of driving an electrophoretic display panel includes: applying a first voltage having a first polarity with respect to a reference voltage to an electrophoretic display panel to display an N-th image, where N is a natural number; applying the first voltage to the electrophoretic display panel, on which the N-th image is displayed, to display a first full-grayscale image; applying a second voltage having a second polarity with respect to a reference voltage to an electrophoretic display panel, on which the first full-grayscale image is displayed, to display a second full-grayscale image, where the second polarity is opposite to the first polarity; and applying the first polarity voltage to the electrophoretic display panel, on which the second full grayscale image is displayed, to display an (N+1)-th image. | 04-26-2012 |
20120249506 | METHOD OF DRIVING LIQUID CRYSTAL LENS, LIQUID CRYSTAL LENS MODULE FOR PERFORMING THE METHOD AND DISPLAY APPARATUS HAVING THE LIQUID CRYSTAL LENS MODULE - A method of driving liquid crystal lens includes identifying a driving mode and driving unit lenses of the liquid crystal lens. The driving mode includes a two-dimensional (“2D”) mode and a three-dimensional (“3D”) mode. Driving timings of the unit lenses are different from each other in the 3D mode. | 10-04-2012 |
20120249526 | METHOD AND APPARATUS FOR PROCESSING AND DISPLAYING A THREE-DIMENSIONAL IMAGE - A method of processing a 3D image data includes calculating shift values of gray-scales for a reference view using a 3D effect selection signal having a selection depth value of the 3D image inputted by a user. Shift values of the gray-scales respectively corresponding to a plurality of views are calculated using the shift values of the gray-scales for the reference view. The shift values of the gray-scales respectively corresponding to the plurality of views are applied to a source image signal to generate a plurality of image frames. | 10-04-2012 |
20130009938 | DISPLAY DEVICE AND DRIVING METHOD THEREOF - A display device includes a first gate driver that applies a gate-on voltage to gate lines of a first gate line group in each period of n first scan periods for a first frame, n being a natural number. A second gate driver applies a gate-on voltage to gate lines of a second gate line group in each period of n second scan periods for a first frame. A data driver applies a data voltage to a plurality of data lines. A signal controller transmits a control signal to the first and second gate drivers and the data driver, wherein an interval between start points of the n first scan periods is gradually decreased according to time, and an interval between start points of the n second scan periods is gradually increased according to time. | 01-10-2013 |
20130063419 | STEREOSCOPIC IMAGE DISPLAY DEVICE AND METHOD OF DISPLAYING STEREOSCOPIC IMAGE - A stereoscopic image display device includes an image dividing module dividing an input image including a two dimensional (2D) image and a depth information image into a plurality of divisions, wherein each of the divisions includes a portion of the 2d image and a portion of the depth information image corresponding to the portion of the 2D image, an image rendering module rendering the divisions to output a plurality of rendered images, and a display panel assembly combining the plurality of rendered images. | 03-14-2013 |
20130076722 | DISPLAY APPARATUS - A display apparatus includes a display panel, a gate driver, and a data driver. The display panel includes a plurality of gate lines, a plurality of data lines, and a plurality of pixels connected to the gate lines and the data lines to display an image. The gate driver is configured to apply a gate signal to the gate lines and the data driver is configured to apply a data signal to the data lines. At least one intermediate voltage having a voltage level between a first voltage and a second voltage and a data voltage corresponding to a specific gray scale are sequentially applied to at least one pixel of the pixels as the data signal during a frame period. | 03-28-2013 |
20130127817 | METHOD FOR DRIVING AN ELECTRO-WETTING DISPLAY PANEL AND ELECTRO-WETTING DISPLAY APPARATUS FOR PERFORMING THE SAME - A method of driving an electro-wetting display panel including a pixel part is provided. In the method, data voltages are applied to the electro-wetting display panel during a first time of a frame. The frame has the first time and a second time. The first time has a plurality of horizontal periods. The data voltages are generated based on reference gamma voltages. At least one of reference gamma voltages of one of the horizontal periods is different from another of the reference gamma voltages of another of the horizontal periods. A reset voltage is applied to the electro-wetting display panel during the second time of the frame. | 05-23-2013 |
20130135545 | TWO-DIMENSIONAL/THREE-DIMENSIONAL SWITCHABLE DISPLAY APPARATUS - A two-dimensional/three-dimensional switchable display apparatus includes: a display panel; a first substrate disposed on the display panel; a first electrode layer disposed on the first substrate and including a plurality of first electrodes; a second substrate disposed on the first substrate; a second electrode layer disposed on the second substrate and including a plurality of second electrodes; and a liquid crystal layer disposed between the first and second substrates. A plurality of lens units are formed in association with a first position of the liquid crystal layer when a lens forming voltage profile is applied to the first electrodes and a common voltage is applied to the second electrodes. When the common voltage is applied to the first electrodes and the lens forming voltage is applied to the second electrodes, the plurality of lens units are formed in association with a second position spaced apart from the first position. | 05-30-2013 |
20130222355 | ELECTROWETTING DISPLAY DEVICE AND DRIVING METHOD THEREOF - The present invention applies the voltage that is swung to the notch electrode of each pixel of the electrowetting display device to reset the oil layer to not backflow such that an additional element is not disposed in the pixel, thereby increasing the aperture ratio of the pixel. Also, the reset signal generator generating and applying the reset signal is disposed inside the electrowetting display device such that additional wiring may not be disposed in the outer part of the panel. | 08-29-2013 |
20140022220 | DISPLAY DEVICE AND DRIVING METHOD THEREOF - A display device including: a display panel; and a signal controller which controls signals for driving the display panel, where the signal controller includes a representative value generator which sequentially operates a portion of image data of one frame, where the representative value generator moves a last position digit into another position digit of the portion of the image data and generates a representative value representing a portion of a frame image corresponding to the portion of the image data; a storage portion which stores the representative value therein; and a comparator which compares the representative values of present and prior frames to determine whether the portion of the frame image is a still image or a motion picture, and the signal controller controls the signals for driving the display panel such that a driving frequency for the still image is lower than a driving frequency for the motion picture. | 01-23-2014 |
20140028740 | METHOD OF DISPLAYING A THREE DIMENSIONAL IMAGE AND DISPLAY APPARATUS FOR PERFORMING THE METHOD - A method of displaying a three-dimensional image, the method includes sequentially displaying a first three-dimensional image on a plurality of horizontal lines of a display panel along a scan direction, and simultaneously displaying a black image on the horizontal lines of the display panel, the black image being inserted between the three-dimensional images having different images. | 01-30-2014 |
20140055501 | DISPLAY DEVICE AND DRIVING METHOD THEREOF - A method of driving a display device includes driving a light source unit with a first driving ratio and outputting received image data to a display panel of the display device, storing the received image data upon receipt of a signal indicating a still image is displayed, calculating a second driving ratio of the light source unit from a representative value of the stored image data, compensating the stored image data according to the second driving ratio, driving the light source unit with the second driving ratio that is lower than the first driving ratio, and outputting the compensated image data to the display panel. | 02-27-2014 |
20140184670 | DISPLAY DEVICE AND DRIVING METHOD THEREOF - A display device and a method of driving a display device including: storing information on a stitch pattern; setting a data processing region disposed in a vicinity of a horizontal center line of a display panel and including a plurality of pixels; and performing data processing of changing gray of data for a portion of the plurality of pixels of the data processing region according to the information on the stitch pattern. The display panel includes a plurality of pixels arranged in a form of a matrix, a plurality of first data lines disposed in a first display panel region on a first side of the horizontal center line, and a plurality of second data lines disposed in a second display panel region on a second side of the horizontal center line opposite the first side. | 07-03-2014 |
20140232711 | IMAGE PROCESSING PART, DISPLAY APPARATUS HAVING THE SAME AND METHOD OF PROCESSING AN IMAGE USING THE SAME - An image processing part includes an edge enhancing part, an artifact detecting part and a compensating part. The edge enhancing part emphasizes an edge portion of an object in input image data. The artifact detecting part detects a corner outlier artifact at an area adjacent to the edge portion of the object. The compensating part compensates the corner outlier artifact. Accordingly, the edge portion of the object may be enhanced and the corner outlier artifact is decreased so that the display quality may be improved. | 08-21-2014 |
20140232756 | DISPLAY DEVICE AND PROCESSING METHOD OF IMAGE SIGNAL THEREOF - A image signal processing method of a liquid crystal display according to an exemplary embodiment of the present invention includes: receiving a previous image signal and a current image signal as two sequential input image signals; performing a first correction (DCC) and a doubling for the current image signal to generate a correction image signal comprising a plurality of doubled frames for the current image signal; and post-processing the portion of the plurality of doubled frames to generate a final correction image signal. | 08-21-2014 |
20140240367 | LUMINANCE ADJUSTMENT PART, DISPLAY APPARATUS HAVING THE LUMINANCE ADJUSTMENT PART, AND METHOD FOR ADJUSTING LUMINANCE - A luminance adjustment part includes a luminance determination part and a data compensation part. The luminance determination part may determine a control value for controlling luminance of a backlight assembly using linear image data that has a linear luminance profile and is generated by performing a de-gamma process on a first copy of input image data that has a nonlinear luminance profile. The compensation part may compensate pixel data that corresponds to pixels of a display panel using the control value, the pixel data being generated using a second copy of the input image data. Thus, color distortion of a displayed image as perceived by a viewer may be minimized when power consumption of a display apparatus that includes the display panel is decreased. | 08-28-2014 |
20140247289 | DISPLAY DEVICE AND PROCESSING METHOD OF IMAGE SIGNAL - An image processing method includes: receiving an input image signal (IIS); doubling the IIS into frames; determining a TGM mode to control an order in which gamma curves (GC) are to be applied to the doubled IIS, the GCs including first and second GCs; applying the GCs to the doubled IIS based on the TGM mode to generate a doubled, TGM-processed image signal (DTIS); correcting the DTIS to generate a corrected image signal (CIS); and dither-processing the CIS to generate an output image signal. The dither-processing of the CIS includes: performing dither-processing by sequentially applying dithering patterns (DP) of a first DP set to the CIS in association with first ones of the frames with respect to the first GC, and performing the dither-processing by sequentially applying DPs of a second DP set to the CIS in association with second ones of the frames with respect to the second GC. | 09-04-2014 |
20150035739 | DISPLAY DEVICE AND DRIVING METHOD THEREOF - A gate-on voltage applied to a third gate line connected to the current stage pixel is configured to be applied during any one or more of a first pre-charge period, a second pre-charge period, and a main-charge period. Data voltages are applied, in order, to a before-previous stage pixel, a previous stage pixel, and a current stage pixel, and the signal controller is configured to control the gate driver to selectively apply the gate-on voltage to the gate line connected to the current stage pixel during at least one of the first pre-charge period while the before-previous stage pixel is being charged and the second pre-charge period while the previous stage pixel is charged, so as to at least partially pre-charge the current stage pixel. | 02-05-2015 |
20150049123 | DISPLAY DEVICE AND DRIVING METHOD THEREOF - A display device includes: a similar gray level block detector configured to detect a pixel data block in which a gray level difference between a plurality of pixel data included in an image signal is smaller than or equal to a threshold; a skin tone detector configured to detect the pixel data block including a skin tone; and a gamma processor configured to apply a first gamma to a plurality of pixel data included in the pixel data block when the pixel data block does not include the skin tone and apply a second gamma to the plurality of pixel data included in the pixel data block when the pixel data block includes the skin tone. | 02-19-2015 |
20150049274 | DISPLAY APPARATUS AND METHOD OF DRIVING THEREOF - A display apparatus includes: a display panel including a gate line, a data line, a switching element connected to the gate line and the data line, a liquid crystal capacitor having a first terminal connected to the switching element, and a storage capacitor having a first terminal connected to the switching element; and a leakage current generating part which generates a leakage current in the switching element. | 02-19-2015 |
20150062105 | DISPLAY DEVICE - A display device includes a timing controller configured to generate an image signal including a pre-emphasis voltage, a data driver configured to generate a plurality of data signals based on the image signal, and provide information about whether the image signal is normally received or not to the timing controller, and a display panel configured to receive the plurality of data signals and display images corresponding to the received data signals, where when the data driver fails to normally receive the image signal, the timing controller increases a level of the pre-emphasis voltage. | 03-05-2015 |
20150070343 | DISPLAY DEVICE - A display device includes a display panel including a plurality of scan lines, a plurality of data lines which crosses the plurality of scan lines, and a plurality of pixels that is connected to the plurality of scan lines and the plurality of data lines, a scan driving unit which provides a plurality of scan signals, each of which includes a scan-on signal and a scan-off signal, to the plurality of scan lines, a data driving unit that provides data voltages to the plurality of data lines, and a timing control unit that determines an order in which the scan signals are provided to the plurality of scan lines, where the scan-on signal is provided to each of the plurality of scan lines based on an order of averages of the data voltages transferred to the pixels connected thereto. | 03-12-2015 |
20150071550 | APPARATUS FOR DETECTING AFTERIMAGE CANDIDATE REGION AND APPARATUS INCLUDING THE SAME FOR PREVENTING AFTERIMAGE - An apparatus for detecting an afterimage candidate region includes: a comparison unit which compares gradation data of an n-th frame with integrated gradation data of an (n−1)-th frame and generates integrated gradation data of the n-th frame, where n is a natural number; a memory which provides the integrated gradation data of the (n−1)-th frame to the comparison unit and stores the integrated gradation data of the n-th frame; and an afterimage candidate region detection unit which detects an afterimage candidate region based on the integrated gradation data of the n-th frame, where each of the integrated gradation data of the n-th frame and the integrated gradation data of the (n−1)-th frame comprises a comparison region and a gradation region. | 03-12-2015 |