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Solid body light emitter (e.g., LED)

Subclass of:

345 - Computer graphics processing and selective visual display systems

345030000 - PLURAL PHYSICAL DISPLAY ELEMENT CONTROL SYSTEM (E.G., NON-CRT)

345055000 - Display elements arranged in matrix (e.g., rows and columns)

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Class / Patent application numberDescriptionNumber of patent applications / Date published
345083000 Color 51
Entries
DocumentTitleDate
20080316153Flexible LED Screen - A flexible LED screen includes a flexible printed circuit board having a front surface and a rear surface, a plurality of SMT-LEDs mounted on the front surface of the flexible printed circuit board, and a plurality of integrated circuits mounted on the rear surface of the flexible printed circuit board.12-25-2008
20090121987LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device is provided, which includes a liquid crystal element including a pixel electrode, a counter electrode, and a liquid crystal disposed between the pixel electrode and the counter electrode, a light source, a comparing circuit configured to compare a potential of the pixel electrode and a reference potential, and supply an output potential in accordance with the result of the comparison, and a control circuit configured to switch turning-on and turning-off of the light source in accordance with the output potential supplied from the comparing circuit.05-14-2009
20090121988LARGE SCALE FLEXIBLE LED VIDEO DISPLAY AND CONTROL SYSTEM THEREFOR - A flexible display for displaying images comprises a plurality of columns of pixel elements, each pixel element having display elements, a pixel driver for processing an output signal from a preceding adjacent pixel element in the same column and generating and transmitting an output signal to a succeeding adjacent pixel element in the same column; electrical conductors extending between pixel elements of each column for electrically connecting the pixel driver of the preceding adjacent pixel element to the pixel driver of the succeeding adjacent pixel element; an image signal processor for generating and delivering pixel element actuating signals to a first pixel element of each the column; and support connectors extending between adjacent pixel elements in the same column and between adjacent pixel elements of adjacent columns and permitting relative movement of the adjacent pixel elements.05-14-2009
20090121986DISPLAY APPARATUS WITH SOLID STATE LIGHT EMITTING ELEMENTS - A display apparatus includes a display system and a control system. The display system includes pixel units and a network interface based on a network protocol. The pixel units are arranged in a matrix and each of the pixel units includes solid state light emitting elements. The control system includes a control module, an input module, and an output module. The output module is electronically coupled to the network interface. The control system is configured to receive an input signal through the input module, generate a corresponding control signal by the control module, and output the control signal by the output module to the display system via the network interface according to the network protocol to control the display contents of the display system.05-14-2009
20090121985Organic light emitting display and driving method thereof - A translucent organic light emitting display having high image quality is disclosed. The display includes a substantially transparent organic light emitting display (OLED) panel, and a liquid crystal display (LCD) panel. The pixels in the OLED panel overlap the pixels in the LCD panel. The LCD panel pixels are configured to be opaque when the corresponding pixels of the OLED display do not emit light.05-14-2009
20130082912Display Drives Circuits and Techniques - A pixel driver architecture for an active matrix OLED display, the pixel driver architecture comprising a voltage-programmed master pixel programming circuit, and a first plurality of current-programmed slave pixel driver circuits, each coupled to said master pixel programming circuit.04-04-2013
20130076604NOVEL ORGANIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME - Provided are a novel organic compound appropriate for emission of green light and an organic light-emitting device including the organic compound. Provided is a substituted or unsubstituted indeno[1,2,3-cd]naphtho[2,3-k]fluoranthene appropriate for emission of green light. The substituents of the indeno[1,2,3-cd]naphtho[2,3-k]fluoranthene are each independently selected from a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted amino group, a substituted or unsubstituted aryl group, and a substituted or unsubstituted heterocyclic group.03-28-2013
20130038515NOVEL ORGANIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME - There is provided a novel organic compound suitably used for a blue light-emitting device and an organic light-emitting device including the novel organic compound. The organic compound is an acephenanthryleno[4,5-k]benzo[e]acephenanthrylene derivative.02-14-2013
20100066654THREE-DIMENSIONAL DISPLAY DEVICE - A three-dimensional display device including a collimated backlight module, a first display panel, a second display panel, and a lens array is provided. The collimated backlight module has a light-emitting surface and provides a light with a divergent angle smaller than 10° from the light-emitting surface. The first display panel having a plurality of first pixels is disposed on the collimated backlight module. The second display panel has a plurality of second pixels corresponding to the first pixels. The first display panel is disposed between the second display panel and the collimated backlight module. A depth distance is formed between the first display panel and the second display panel. The lens array is disposed adjacent to the second display panel and has a plurality of lenses corresponding to the second pixels. Therefore, the three-dimensional display device is capable of providing a wide visual angle and desirable depth characteristics.03-18-2010
20130069854DISPLAY DEVICE AND DRIVING METHOD THEREOF - In an organic light emitting diode display, a plurality of sub-pixels sharing a select scan line that extends in a row direction forms a unit pixel, and the plurality of sub-pixels are arranged in a column direction in the unit pixel. A field is divided into a plurality of subfields, and corresponding one of the plurality of sub-pixels emits light in each of the plurality of subfields.03-21-2013
20130088417ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE AND METHOD FOR DRIVING THE SAME - An OLED display device is provided. The OLED display device includes a first transistor connected to a data line and a first node; a second transistor connected to the first node and a second node; a third transistor connected to a reference voltage terminal and a third node; a fourth transistor connected to an initialization voltage terminal and the second node; a fifth transistor connected to the reference voltage terminal and the second node; a driving transistor; and an OLED connected to a low-level power supply voltage terminal and the second node. The driving transistor has a source connected to the second node, a gate connected to the third node, and a drain connected to a high-level power supply voltage terminal.04-11-2013
20090315816DISPLAY APPARATUS - A display apparatus includes a display panel, a light generator disposed under the display panel to generate light, a light sensor disposed between the display panel and the light generator and which senses a first portion of the light generated by the light generator and reflected by an object disposed above the display panel, a light diffuser disposed between the display panel and the light sensor, and an image processor which provides image data corresponding to the first portion of the light sensed by the light sensor to the display panel.12-24-2009
20090040152GRAPHICAL DISPLAY COMPRISING A PLURALITY OF MODULES EACH CONTROLLING A GROUP OF PIXELS CORRESPONDING TO A PORTION OF THE GRAPHICAL DISPLAY - A graphical display includes multiple networked modules for controlling different group of pixels in the graphical display. In one embodiment, each module includes a network interface for receiving data and control signals, LED drivers for the pixels in the portion of the graphical display, and a control circuit that controls the currents in the LEDs in accordance with the control and data signals received. Memory modules may be provided to store data and programs for the control circuit. The network interfaces of the modules may comply with an industry standard computer network protocol.02-12-2009
20110012819CURRENT GENERATOR AND ORGANIC LIGHT EMITTING DISPLAY USING THE SAME - A current generator for supplying or sinking current to/from pixels. The current generator includes a variable power source, a first amplifier having a first input terminal coupled to the variable power source, a sensing resistor coupled between an output terminal of the first amplifier and an external terminal of the current generator, and a second amplifier having a first input terminal and a second input terminal coupled to respective ends of the sensing resistor and an output terminal coupled to a second input terminal of the first amplifier.01-20-2011
20110063198PIXEL CIRCUIT AND ORGANIC LIGHT-EMITTING DIODE DISPLAY USING THE SAME - A pixel circuit and an organic light-emitting diode (OLED) display using the pixel circuit is provided. The pixel circuit includes: an OLED; a third N-channel metal-oxide semiconductor (NMOS) transistor coupled to a data line and a first scan line and configured to apply a data signal to a first node; a storage capacitor having one terminal coupled to the first node and the other terminal coupled to a second node; a fourth NMOS transistor coupled between a first power and the second node and configured to apply a voltage of the first power to the second node; a first NMOS transistor having a first electrode, a second electrode, and a gate electrode coupled to the second node; and a second NMOS transistor coupled between the second node and the first electrode of the first NMOS transistor and configured to diode-connect the first NMOS transistor.03-17-2011
20110063197PIXEL CIRCUIT AND ORGANIC LIGHT EMITTING DISPLAY APPARATUS INCLUDING THE SAME - A pixel circuit includes: a second NMOS transistor coupled to a data line and a scan line, the second NMOS transistor for supplying data signals to a first node; a capacitor having a first terminal coupled to the first node and a second terminal coupled to a second node; an OLED having a first terminal coupled to the second node and a second terminal coupled to a second power source; a first NMOS transistor including a first electrode, a second electrode, and a gate electrode coupled to the first node, and for supplying a current corresponding to a voltage applied to the first node from a first power source to the second power source via the OLED; and a third NMOS transistor coupled to the first NMOS transistor in series and configured to be turned on when a light emission control signal is supplied from a light emission control line.03-17-2011
20100085286ACTIVE MATRIX TYPE DISPLAY DEVICE AND PORTABLE MACHINE COMPRISING THE SAME - An active matrix type display device utilizing multi-bit memory in pixel technology, capable of displaying still and moving pictures are provided. A display device of an embodiment includes a plurality of pixels P04-08-2010
20120112990LIGHT BAR STRUCTURE AND DISPLAY DEVICE - A light bar structure includes a circuit board and a plurality of light emitting units. A plurality of holes is formed on the circuit board. Each light emitting unit includes a main body and a plurality of leads. The main body is disposed in one of the holes. The main body has a light emitting surface and a non-light emitting surface opposite to the light emitting surface. Each lead has a first connecting portion, a second connecting portion and an extending portion. The first connecting portion is connected to the non-light emitting surface. The extending portion is extended from the first connecting portion toward the light emitting surface. The second connecting portion is extended from the extending portion and connected to a surface of the circuit board.05-10-2012
20130162506DISPLAY MODULE AND DISPLAY APPARATUS HAVING THE SAME - A display module including a backlight to more effectively dissipate heat generated at light emitting diodes (LEDs) and heat dissipation units to effectively dissipate heat generated at driver chips and prevent movement of the driver chips by attaching porous fillers to the heat dissipation units, and a display apparatus having the same are provided. The display module includes a display panel, a backlight disposed on a rear side of the display panel and including a plurality of printed circuit boards, a bottom chassis adapted to accommodate the backlight unit and provided with a plurality of seating grooves, a driving printed circuit board, a plurality of flexible printed circuit films which electrically connect the display panel and the driving printed circuit board, at least one heat dissipater disposed on an opposite surface of a corresponding one of the flexible printed circuit and provided with a porous filler.06-27-2013
20090146931Large scale LED display system - A system distributes data in a robust manner to a large scale LED display formed of a number of display panels. The system includes a plurality of data hubs wherein each display panel is connected to at least two data hubs to receive redundant pixel data for each pixel of the panel. Each data hub is further connected to at least two panels of the display to provide pixel data for each pixel of the panels to which the data hub is connected.06-11-2009
20110140999APPARATUS AND METHOD FOR MAPPING VIRTUAL PIXELS TO PHYSICAL LIGHT ELEMENTS OF A DISPLAY - Methods and displays are disclosed for presenting media content on display systems. A display is configured as an array of LEDs. The array of LEDs includes a first set of rows including first LEDs in a repeating pattern of a first color LED, a second color LED, and a third color LED. A second set of rows includes second LEDs in a repeating pattern of the first color LED, the second color LED, and the third color LED, wherein the second set of rows are interleaved between the first set of rows and the second LEDs are offset relative to the first LEDs. Visual content to be presented on the display includes a repeating sequence of four frames of an array of virtual pixels such that each virtual pixel of the array comprises at least one of the first LEDs and at least one of the second LEDs.06-16-2011
20110141000PIXEL AND ORGANIC LIGHT EMITTING DISPLAY DEVICE USING THE SAME - A pixel circuit and an organic light emitting display using the pixel circuit are disclosed. The pixel circuit compensates for variation of the threshold voltage of a driving transistor and for variation in the power supply to the pixel.06-16-2011
20100171686EXPANDED BIT MAP DISPLAY FOR MOUNTING ON A BUILDING SURFACE AND A METHOD OF CREATING SAME - An expanded bit map display (“EBMD”) (07-08-2010
20120026075APPARATUS AND METHOD FOR CREATING A CROWD-BASED VISUAL DISPLAY WITH PIXELS THAT MOVE INDEPENDENTLY - The present invention provides a light-emitting apparatus and a method by which a crowd-based display is created wherein each light-emitting apparatus represents one of many independently moving pixels in the crowd-based display. This invention also provides methods, both internal and external to the light-emitting apparatus, by which the visual display sequence is controlled to provide various forms of colorful illumination. This invention discloses a shock wave method, a time-synchronized playback method, and a laser-based actuation method for creating the visual displays of illumination.02-02-2012
20080198106Electronic Circuit and Method for Dynamic Piloting of Light Sources in Variable Message Information Panels - The invention concerns an electronic circuit for dynamic command of light sources in variable message information panels. It includes a number of elementary circuits consecutively connected between them, each having at least one LED connected through respective switchable branches, to a feed voltage, to a LED short-circuiting line, to a contiguous elementary circuit and to a component or a control circuit output. Thus, by commanding the switching elements through the control circuit several elementary circuits can be selectively configured as closed circuits, each of which having a chain of LEDs activated in dynamically variable numbers wherein the feed voltage is applied to the feed branch of the first active LED of the chain and the control circuit output is closed on the last active LED of the activated LEDs chain.08-21-2008
20100039357DISPLAY DEVICE WITH CHIPLETS - A display device includes: a substrate; one or more pixels arranged on the substrate, each pixel including a control electrode; a wiring layer located over the substrate, the wiring layer having a continuous line and a discontinuous pass-thru line formed therein. The active-matrix device includes at least one chiplet located over the substrate and including first, second, third, and control connection pads including; a control line electrically connecting the control connection pad to the control electrode; a first end of the discontinuous pass-thru line connected to the first connection pad and a second end of the discontinuous pass-thru line connected to the second connection pad; circuitry electrically connecting the first and second connection pads; and the continuous line electrically connected to the third connection pad, wherein the continuous line extends to opposite sides of the chiplet.02-18-2010
20090153448Self-luminous display device and driving method of the same - A self-luminous display device includes: pixel circuits; and a drive circuit, wherein each of the pixel circuits includes a light-emitting diode, a drive transistor connected to a drive current channel of the light-emitting diode, and a holding capacitor coupled to a control node of the drive transistor, the drive circuit applies a light emission enabling bias to the light-emitting diode after correcting the drive transistor and writing a data voltage to the control node, provides, during a light emission enabled period in which the light emission enabling bias is applied, a light emission interruption period adapted to change the light emission enabling bias to a non-light emission bias with the data voltage held by the holding capacitor, and performs a light emission disabling process, adapted to reverse-bias the light-emitting diode to stop the light emission, for a constant period after the light emission enabled period.06-18-2009
20090153449PICTURE IMAGE DISPLAY DEVICE AND METHOD OF DRIVING THE SAME - A display device including: a display portion with gate lines to which scanning signals are fed, a plurality of data lines to which picture image signals are fed, wherein the gate lines and data lines are crossed with each other in a matrix shape, TFTs and OLED elements disposed in regions surrounded by the gate lines and data lines; a scanning line driving circuit which feeds the scanning signals for the gate lines; a data line driving circuit which feeds the picture image signals for the data lines; a display control controller which provides timing control signals to the scanning line driving circuit and the data line driving circuit and further provides the picture image signals to the data line driving circuit; a timing regulation circuit which regulates the timing (clock frequency) of the timing control signals; and a picture image memory which stores the picture image signals.06-18-2009
20090146932APPARATUS FOR DRIVING LIGHT EMITTING ELEMENTS AND ELECTRONIC APPLIANCE EMPLOYING THE APPARATUS - An apparatus for driving light emitting elements includes a constant-current driver arranged for each of arrays of light emitting elements including a constant-current drive element and a current regulator; a first selector configured to select one having a highest signal level from among control signals of the constant-current drivers and output the selected control signal; a second selector configured to select a lowest one from among output voltages of the constant-current drivers and output a signal representative of the selected output voltage; a differential amplifier configured to output an amplified differential signal that is obtained by amplifying a difference between the signals output from the first and second selectors; and a power source circuit configured to control, according to the amplified differential signal, a voltage supplied to a second end of each of the arrays of light emitting elements.06-11-2009
20090079679Pixel driving method and apparatus for organic light emitting device - A pixel driving method for an organic light emitting device includes charging a data voltage supplied through a data line to a storage capacitor and driving an N-channel switching transistor while cutting off supply of an upper power supply voltage to an organic light emitting diode; and powering the organic light emitting diode emit light by driving the N-channel driving transistor by the data voltage charged onto the storage capacitor while supplying the upper power supply voltage to the light emitting diode.03-26-2009
20090309819Collapsible Support Structure for a Display - A support structure for a lighting display can be collapsed down towards the display. In an implementation, the support structure includes a set of first structural members onto which one or more tiles are attached. A second structural member is connected across the first structural members. When the second structural member is removed, the set of first structural members can be collapsed.12-17-2009
20090207109CIRCUIT AND METHOD FOR DRIVING LIGHT EMITTING DIODES - A circuit and a method for driving light emitting diodes (LEDs) are provided. First, an input voltage is converted into an output voltage and the output voltage is transmitted to the anode terminals of LED strings. The output voltage is reduced when the output voltage is greater than a first threshold voltage and the output voltage is reduced when the lowest level among the cathode terminal voltages of all the LED strings is greater than a second threshold voltage. Thus, the output voltage can be maintained at a lower level for driving all the LED strings to reduce unnecessary power wastage.08-20-2009
20090096725ORGANIC ELECTROLUMINESCENT DISPLAY - In an organic light-emitting display screen, each picture dot includes an organic diode (OLED) and first and second current driver circuits for the diode. Each driver circuit includes: a driving transistor connected between a reference voltage and one electrode of the said diode, a switching transistor for switching a gate voltage onto the gate of the said driving transistor, and a capacitor connected to the gate of the said driving transistor, to maintain the gate voltage. The gate voltage of a driving transistor is alternately a video voltage controlling a display phase, or a turn-off voltage, controlling a recovery phase. The driving transistors are controlled alternately, one in recovery phase, the other in display phase, and vice versa.04-16-2009
20090201235Active matrix organic light emitting diode display - Provided is an active matrix light emitting diode (AMOLED) display. A driver circuit of the AMOLED display can be easily manufactured in a simple structure in a current programming method. The AMOLED display programs a voltage corresponding to a current necessary for the operation of an OLED in a memory capacitor, and induces and stores a voltage corresponding to a driving voltage in the memory capacitor while making a preset current flowing between a source and a drain of a driving transistor.08-13-2009
20090284454Organic light emitting display device - An organic light emitting display device capable of stabilizing the output of an external condition detection sensor is disclosed. The organic light emitting display device has an external condition detection sensor configured to sense an external condition and to output a detection signal to be used for adjusting the display parameters according to the external condition. The display device also has a sensor output stabilizing unit coupled to an output line of the external condition detection sensor, which is configured to compensate for parasitic coupling of signals onto the detection signal.11-19-2009
20090284453DISPLAY DEVICE AND METHOD OF DRIVING THE SAME - In accordance with one or more embodiments of the present disclosure, an organic light emitting device is provided. By including a current leakage unit in each pixel and slowly decreasing an amount of a current flowing to the organic light emitting element, both normal luminance and black luminance can be displayed in a frame. Thus, for example, impulsive driving can be simply performed without a separate manipulation.11-19-2009
20090289877Display apparatuses and methods of fabricating the same - A display apparatus may include: a flexible base having a first surface and a second surface; a hard base including a plurality of base members adhered onto the first surface of the flexible base; and/or an image display structure formed on the second surface of the flexible base. A method of manufacturing a display apparatus may include: preparing a flexible base having a first surface and a second surface; adhering a hard base onto the first surface of the flexible base; forming an image display structure on the second surface of the flexible base; and/or dividing the hard base into a plurality of base members.11-26-2009
20110199286Spherical Electronic LCD Display - A spherical electronic display is disclosed that includes a spherical display screen that is able to display electronically generated images on its surface using electronic display technology included in the surface, and an electronic control unit in communication with the spherical display screen, the electronic control unit being able to cause the spherical display screen to display images. The electronically controlled spherical display uses low energy display technology, such as LCD and/or OLED electronics, included within the spherical surface. This approach avoids the need to project images onto a spherical screen, and thereby avoids any need for high energy optical projectors and their associated costs and maintenance requirements. The spherical display is connectable to an electronic control unit that can be located either within the sphere or within a support base. The electronic control unit can be a conventional computer or a self-contained, dedicated controller.08-18-2011
20100201610LIGHT EMITTING DIODE LIGHT ARRAYS ON MESH PLATFORMS - Light emitting diodes (LED) panels are provided that are made using a flexible or solid platform in a mesh form, the mesh being constructed from a first plurality of conductive strips, arranged in a first direction, and a second plurality of conductive strips, arranged in a second direction such that the first and second plurality of conductive strips form plural intersection therebetween, and a plurality of LED modules, each of the plurality of LED modules being arranged at one of the plural intersections, each LED module configured to receive display signals from at least one of the braided wire conducting strips and display light in accordance with the received signals. Also, multi-layer LED panels are provided with LEDs bonded on a base layer which conducts thermal energy. Further, LED devices are provided comprising a plurality of dynamically addressing LED modules.08-12-2010
20090267875AUTO-ADDRESSING METHOD FOR SERIES CIRCUIT AND AUTO-DETECTING METHOD FOR DETECTING THE NUMBER OF CIRCUITS CONNECTED IN SERIES - An auto-addressing method for a series circuit and an auto-detecting method for detecting the number of circuits connected in series are disclosed. The series circuit includes a number of same integrated circuits connected in series. The auto-detecting method is based on the auto-addressing method. In the auto-addressing method, the integrated circuits are enabled to transmit an initial address command sequentially. Each integrated circuit is provided with corresponding address information upon receiving the initial address command.10-29-2009
20080303757LIGHT EMITTING DEVICE, AREA LIGHT SOURCE APPARATUS AND IMAGE DISPLAY APPARATUS - Disclosed herein is a light emitting device, including: a light emitting diode; an sealing resin member having an arrangement face and configured to seal the light emitting diode; and a lens disposed on the arrangement face of the sealing resin member and formed so as to have a circular shape as viewed in the direction of an optical axis of light emitted from the light emitting diode, the lens having a concave portion formed at a central portion in such a manner as to be concave toward the sealing resin member.12-11-2008
20080211750Resistance balance circuit - This invention discloses a resistance balance circuit including: at least two electronic components aligned in a row matrix, connected to one another in parallel, thereby forming a row matrix structure; an input end disposed at one end of the row matrix structure and configured for entry of current passing the electronic components in the row matrix structure; and an output end disposed diagonally opposite to the input end in the row matrix structure and configured for exit of the current passing the electronic components in the row matrix structure, wherein routes for the current passing the electronic components from the input end to the output end are equal in length, and thus the same current passes the electronic components in the matrix structure.09-04-2008
20110012820PIXEL ARRANGEMENT STRUCTURE FOR ORGANIC LIGHT EMITTING DISPLAY - A pixel arrangement structure for an organic light emitting display including a plurality of sub-pixel groups repeatedly arranged, wherein each of the sub-pixel groups includes: four first sub-pixels for emitting light of a first color and each having a hexagonal structure, two second sub-pixels for emitting light of a second color and each including two hexagonal structures sharing one side, and two third sub-pixels for emitting light of a third color and each including two hexagonal structures sharing one side. Two of the four first sub-pixels are arranged in a same column and share a symmetrical axis, and the two second sub-pixels and the two third sub-pixels are alternately arranged on either side of the symmetrical axis.01-20-2011
20090128460Apparatus and Methods for Selecting Light Emitters for a Transmissive Display - Provided are devices and methods for providing front-of screen uniformity. Methods include estimating a filter function corresponding to the display and selecting multiple light emitters as a function of characteristics corresponding to light transmitted from the display as determined via the filter function. Devices are provided that include multiple light emitters including a first chromaticity difference corresponding to the multiple light emitters and a second chromaticity difference corresponding to the multiple light emitters and a filter function, wherein the second chromaticity difference is less than the first chromaticity difference.05-21-2009
20090184904System and Method for Backlight Control for An Electronic Display - The present invention discloses apparatus and techniques relating to the intelligent control of a display's backlight LED strings. The present invention provides for controlling the display intensity on a region-by-region basis and for adjusting the intensity multiple times within the duration of a frame. The present invention also provides backlight adjustment in a manner that emphasizes certain colors and deemphasizes certain colors. The present invention also provides for adjustment of the backlight based on the ambient temperature.07-23-2009
20090002287Light-emitting device and image forming apparatus - A light-emitting device has a plurality of pixel circuits arranged in one direction, each of the plurality of pixel circuits having a light-emitting element that emits light according to the amount of driving current, a driving transistor that supplies the driving current to the light-emitting element, a holding transistor that supplies a data signal supplied via a data line to the driving transistor, and a connecting line that connects the driving transistor to the holding transistor. The holding transistor, the light-emitting element, and the driving transistor are arranged in a direction crossing the arrangement direction of the plurality of pixel circuits. The light-emitting element is provided between the holding transistor and the driving transistor.01-01-2009
20090051629System and Method for Sequential Driving of Information Handling System Display Backlight LED Strings - An information handling system display backlight illuminates an image with plural strings of LEDs driven by a backlight driver integrated circuit with pulse width modulation. A string detection module detects the number of active LED strings and divides the time period by number of active LED strings into an equal number of time delays or shifts so that the backlight driver sequentially turns on an LED string at a predetermined time period. The active number of LED strings is detected by reading a total number of LED strings from a management interface and subtracting from the total number any detected failed LED strings or any LED strings powered down to reduce power consumption.02-26-2009
20090051630Light Emitting Device - The invention has a monitoring portion which detects change of ambient temperature and degradation with time, provided with a plurality of monitoring pixels and a monitoring line. Each of the plurality of monitoring pixels has a light emitting element for monitoring, a constant current source, a switch, and a detecting circuit, and one electrode of the light emitting element for monitoring is connected to the monitoring line through the switch. The detecting circuit controls on and off of the switch, and specifically in the case where both electrodes of the light emitting element for monitoring are short-circuited, the switch is turned off. The invention having the aforementioned configuration generates no potential change of the power supply line of the pixel portion when both electrodes of a light emitting element for monitoring are short-circuited.02-26-2009
20090096724Display apparatus, quantity-of-light adjusting method for display apparatus and electronic equipment - A display apparatus includes display means for displaying an image, a light source that irradiates light to the display means, and control means for controlling the quantity of light of the light source with pulse width modulation. The control means controls the quantity of light of the light source based on the ratio of the light-on period with pulse width modulation to the light-off period when the light source is turned off.04-16-2009
20090184905DISPLAY APPARATUS - A display apparatus includes a display panel, a front cover attached to the display panel, a plurality of emitting units disposed on the front cover, and a switching unit. The display panel is used for displaying images. The emitting unit is used for receiving power from a power module and emitting light in different colors. The switching unit is used for controlling an electrical connection between the power module and the emitting unit. When the display panel is powered off, the switching unit closes the electrical connection.07-23-2009
20110227815PWM precharge of organic light emitting diodes - Methods for PWM precharging of organic light emitting diodes (OLEDs) have been disclosed. Image quality has been improved by including the light generated during pre-charge phase is included in the overall budget. The approach invented is especially beneficial to displays using Multi-Line Algorithms (MLA). Constant discharge time for anodes, discharging the anodes to just below the luminance level saves power by reducing the pre-charge requirements for the next driving phase. High impedance terminal (HiZ) discharge is performed after a fixed discharge of anodes.09-22-2011
20090231247METHODS AND CIRCUITS FOR SELF-CALIBRATING CONTROLLER - The present invention relates to circuits and methods for controlling one or more LEDs or LED drivers. The circuit comprises a programmable decentralized controller coupled to one or more detectors, wherein the one or more detectors are configured to detect one or more measurable parameters of one or more LEDs or LED drivers. The controller is configured to receive information from the one or more detectors related to the one or more measurable parameters. The controller is also configured to adjust one or more controllable parameters until one or more detectors indicate that one or more measurable parameters in one of the LEDs or LED drivers meet a reference condition. The controller is configured to then set one or more of the controllable parameters to operate at a value relative to the value of the controllable parameters at which the reference condition was met.09-17-2009
20090015525ELECTRO-OPTICAL DEVICE, METHOD OF CONTROLLING THE SAME AND ELECTRONIC APPARATUS - Light having a color component that corresponds to a present field is irradiated on a plurality of pixels for a time duration that starts during the scan period of the present field and that ends during the scan period of a next field that is subsequent to the present field. The light is irradiates so that the light having the color component that corresponds to the present field is not mixed with light having a color component that corresponds to a previous field that is previous to the present field and with light having a color component that corresponds to the next field01-15-2009
20090207110ORGANIC LIGHT EMITTING DISPLAY DEVICE AND DRIVING METHOD THEREOF - The organic light emitting display device according to the present invention includes a scan driver for supplying a scan signal to scan lines during a frame time-divided into a plurality of subframes, a data driver coupled to output lines for supplying data signals on each of the output lines, data distributors coupled to the output lines for distributing the data signals to data lines, concurrently, in synchronization with the scan signal, and pixels located at crossing regions of the data lines and the scan lines. Each of the data distributors includes a sampling latch for distributing the data signals to different channels and for storing the data signals, and a holding latch coupled to the sampling latch for supplying the data signals of the channels to the data lines concurrently.08-20-2009
20090251393SCALABLE LED DISPLAY SYSTEM - The scalable LED display system has multiple scalable pre-assembled display blind panels to construct a display screen to meet the customer demands of various display sizes. An image controlling device is electronically connected to the LED display screen to drive the LED display screen. Therefore, the present invention simplifies the wiring from an image controlling device to thousands or millions of LED chips of the display screen, resulting in the simplification of the wiring and savings in time and effort for assembly, disassembly, and installation of the display system.10-08-2009
20100265167LIGHT EMITTING APPARATUS AND DISPLAY APPARATUS USING LIGHT EMITTING APPARATUS - A light emitting apparatus according to the present invention having an illuminant surface and configured to be able to adjust brightness for each of a plurality of divided areas of the illuminant surface, includes: an LD chip as a light source including a plurality of light emitting elements that can be independently driven, and configured to emit light from the plurality of light emitting elements; a plurality of fiber waveguide portions each coupled to at least one of the plurality of light emitting elements and configured to transmit light from the at least one of the plurality of light emitting elements coupled; and a plurality of minute wavelength conversion members each placed for each of the areas, configured to take in the light transmitted via corresponding fiber waveguide portions, and emit the taken-in light.10-21-2010
20090315815DISPLAY DEVICE AND DRIVING METHOD THEREOF - The present invention relates to a display device and a driving method thereof. The display device includes a light emitting device, a capacitor connected between a first electrical contact and a second electrical contact, a driving transistor, a switching transistor being controlled by a scanning signal to be connected between a data voltage and the first electrical contact, a first compensation transistor being controlled by a first compensation signal to be connected between the first electrical contact and a first voltage, and a second compensation transistor being controlled by a second compensation signal to be connected between the second electrical contact and a second voltage. The driving transistor includes an input terminal that is connected to a driving voltage, an output terminal that is connected to the second electrical contact, and a control terminal that is connected to the first electrical contact.12-24-2009
20100156767ELECTRONIC LED DISPLAY DEVICE FOR DISPLAYING PATTERN ON ROTATABLE OBJECT - An electronic LED display device for displaying a pattern on a rotatable object; wherein when the rotating object rotates with a high speed, the pattern will display; the device comprises a printed circuit board on the rotatable object is arranged with a bank of light emitting diodes; a speed detection sensor for detecting speeds of the rotatable object; a memory storing with at least one pattern and algorithms for displaying; a processor being a controlling center; the processor receiving signals from the synchronous unit; wherein the processor processing a simulation calculation for displaying the light emitting diodes by using a simulated projection line to be projected to the pattern; and a current controller receiving signals from the processor; the current controller controlling on-and-off operation of each of the light emitting diodes in the printed circuit board.06-24-2010
20100188321LED DISPLAY DEVICE WITH HIGH TRANSMITTANCE - A LED display device with high transmittance is revealed. The LED display device with high transmittance consists of a plurality of horizontal display strips arranged at certain intervals and parallel to one another, a plurality of support members for connecting and supporting the plurality of display strips, a power cable together with a signal wire for sending electrical signals and driving the LEDs to emit light. The horizontal display strip includes a long horizontal frame, a strip circuit board, and a plurality of light emitting diodes (LED). The LED is side LED arranged on the circuit board at equal intervals and the circuit board is horizontally mounted in a long chamber of the long horizontal frame so as to reduce forward height as well as forward area of the long horizontal frame for increasing light transmittance of the LED display device.07-29-2010
20100238095PIXEL STRUCTURE OF ACTIVE MATRIX ORGANIC LIGHT EMITTING DISPLAY AND MANUFACTURING THEREOF - An embodiment of the invention provides a pixel structure of an active matrix organic light emitting display comprising a gate line, a common electrode line, a signal line, a power line, a first thin film transistor which is used as an addressing element, and a second thin film transistor which controls the organic light emitting display. A short-circuit-ring structure is connected between the common electrode line and the signal line and the short-circuit-ring structure communicates the signal line and the common electrode line in the case where a large current flows.09-23-2010
20100238094ESD PROTECTION CIRCUIT AND ORGANIC LIGHT EMITTING DISPLAY DEVICE HAVING THE SAME - An organic light emitting display device having an electrostatic discharge (ESD) protection circuit. The organic light emitting display device according to an embodiment of the present invention includes: a display panel; a plurality of signal input lines for transferring driving power and driving signals received from a pad unit at one side of the display panel to the inside of the display panel; and an ESD protection circuit coupled to one or more of the signal input lines. The ESD protection circuit includes at least one transistor having a gate electrode, a first electrode, and a second electrode, the gate electrode being diode-coupled to the first electrode. A distance from the gate electrode to the first electrode of the transistor and a distance from the gate electrode to the second electrode are different from each other.09-23-2010
20110057866Active Matrix Emissive Display and Optical Scanner System - An active matrix emissive display (ED) is disclosed that also includes optical scanning capability. Each display pixel is independently addressable and independently internally driven for light generation. Each display pixel is also given the ability to be coupled to detection circuitry in order to sense currents or voltages that are optically generated or leaked by its internal LED when exposed to light (and thus acting in a photodiode capacity). Since the intensity of the light illuminating the diode determines the magnitude of generated currents and/or voltages or leakage current through the diode (when reverse biased), these sensed currents or voltages give an indication of the intensity of the light striking the pixel. In this manner, active matrix ED pixels are configured to serve the dual purpose of being able to generate and detect light.03-10-2011
20090256786LIGHT SOURCE DRIVING APPARATUS, LIGHT SOURCE DRIVING METHOD, AND DISPLAY APPARATUS - A light source driving apparatus includes: a switching driver which performs switched-mode power conversion and outputs a first current toward a light source, to control quantity of light emitted from the light source; and a current bypasser which bypasses at least a part of the first current so that a second current branched from the first current flows in the light source.10-15-2009
20130127694AMORPHOUS OXIDE SEMICONDUCTOR THIN FILM TRANSISTOR FABRICATION METHOD - This disclosure provides systems, methods and apparatus for fabricating thin film transistor (TFT) devices. In one aspect, a substrate having a source area, a drain area, and a channel area is provided. Metal cations are implanted in the oxide semiconductor layer overlying the source area and the drain area of the substrate. The metal cation implantation forms a doped n-type oxide semiconductor in the oxide semiconductor layer overlying the source area and the drain area of the substrate.05-23-2013
20090322658Information Processing Apparatus - According to the invention, an information processing apparatus includes: a non-self-emission type display panel; a light source configured to apply light to the display panel; a light source driver configured to control luminance of the light source and provided independently from the display panel; and a flexible printed circuit board that connects the light source and the light source driver and has a plurality of terminals connected to the light source driver, wherein the terminals includes a plurality of cathode terminals and a plurality of anode terminals, the number of the cathode terminals being a multiple of three times of the number of the anode terminals.12-31-2009
20090109150PIXEL AND ORGANIC LIGHT EMITTING DISPLAY USING THE SAME - A pixel includes a light emitting diode, and a switching circuit that is coupled to a data line, and includes a transistor including a control terminal, a first main terminal coupled to a power source line, and a second main terminal coupled to the light emitting diode. The switching circuit generates a control signal based on at least a voltage of a data signal transmitted through the data line and a voltage drop of the light emitting diode, and applies the control signal to the control terminal of the first transistor to control a current flowing in the light emitting diode so that the current varies in accordance with the voltage of the data signal and is independent of variations in the voltage drop of the light emitting diode.04-30-2009
20100207851CHIPLET DRIVER PAIRS FOR TWO-DIMENSIONAL DISPLAY - A display device, including a substrate; a first layer having an array of row electrodes formed in rows across the substrate in a first direction and a second layer having an array of column electrodes formed in columns across the substrate in a second direction different from the first direction wherein the row and column electrodes overlap to form pixel locations; one or more layers of light-emitting material formed between the row and column electrodes to form a two-dimensional array of pixels, the pixels being located in the pixel locations; and a plurality of row driver chiplets and a separate plurality of column driver chiplets distributed relative to the two-dimensional array of pixels, each row driver chiplet exclusively connected to and controlling an independent set of row electrodes and each column driver chiplet exclusively connected to and controlling an independent set of column electrodes.08-19-2010
20100207850MATRIX STRUCTURE OF LED (LIGHT EMITTING DIODE) - The present invention is to provide a matrix structure of LED that is a matrix composed of two horizontal scan lines and two vertical scan lines. There is separately set the first and second LEDs with their one ends connect-assemble with the horizontal line and their other ends connect-assemble with the vertical line at the cross points of each horizontal scan line and each vertical scan line. And, each LED has two or more than two light source points with their positive/plus and negative/minus circuitry reversed. By utilizing the method of alternately outputting the positive/plus and negative/minus voltages to horizontal scan lines and vertical scan lines, the four first LEDs and four second LEDs are driven simultaneously. And, while the positive/plus and negative/minus voltages are alternately output, every LEDs all have one light source points lightened such that a matrix is formed to control sixteen LEDs and has the form with eight light source points alternately flashing.08-19-2010
20100134389ORGANIC LIGHT EMITTING DIODE DISPLAY - An organic light emitting diode display includes a plurality of pixels. Each pixel includes a light emitting element and a driving transistor coupled to the light emitting element. The pixels may be arranged in a matrix. The pixels include first pixels, second pixels, and third pixels, the driving transistors of the first to the third pixels occupy different areas, and the light emitting elements of the first to the third pixels occupy substantially equal area.06-03-2010
20110001689ACTIVE MATRIX TYPE DISPLAY APPARATUS - A light emitting element is provided to allow for resetting a shift register while keeping a frame narrow without increasing complexity of a shift register circuit. A display apparatus has a data line, a scanning line, a pixel circuit, a shift register circuit, a first power supply supplying a voltage to the shift register circuit and a second power supply supplying a voltage to the pixel circuit. One end of the scanning line is connected to an output of the shift register circuit, and writing of a data signal from the data line to the pixel circuit can be controlled by a scanning signal from the scanning line. When the first power supply is on, any one of a high-level signal and a low-level signal is input into the shift register circuit for the number of stages of the shift register, and thereafter, the second power supply is turned on.01-06-2011
20130147694ORGANIC LIGHT-EMITTING DISPLAY DEVICE WITH DATA DRIVER OPERABLE WITH SIGNAL LINE CARRYING BOTH DATA SIGNAL AND SENSING SIGNAL - An organic light emitting display device having a data line that is used for sending data voltage signals to pixels from a data driver as well as send sensor signals for detecting threshold voltage levels of driving transistors in the pixels at different times. By using the same data line to transmit the data voltage signals and the sensor signals, the number of signal lines in the organic light emitting display can be reduced. The data driver also includes switches for selectively coupling the data line to a driver unit or an analog to digital converter (ADC) unit.06-13-2013
20100214199DISPLAY DEVICE FOR PREVENTING ELECTROMAGNETIC INTERFERENCE - A display device includes a display panel, a back light module, a printed circuit board and a ground slice. The back light module includes a first frame, a second frame and a light source disposed between the first frame and the second frame. The first frame has a first side plate having an opening, and the second frame has a second side plate opposite to the first side plate. The printed circuit board includes a control circuit electrically connected to the display panel. The printed circuit board is disposed at a side of the back light module, and the control circuit is disposed at the outer side of the first side plate and the second side plate, such that the control circuit is opposite to the second side plate through the opening. The ground slice is connected between the control circuit and the second side plate through the opening.08-26-2010
20110115694BACKLIGHT UNIT AND DISPLAY APPARATUS HAVING THE SAME - Disclosed are a backlight unit and a display apparatus. The display apparatus including: an image receiver receiving an image signal; an image processor processing an image signal received by the image receiver; a display panel displaying an image signal processed by the image processor into an image; a plurality of light guide plates providing light to divided display regions of the display panel, respectively; and a plurality of light sources sequentially disposed along a lateral surface of each of the light guide plates and providing light to the lateral surface of each of the light guide plates, a row of at least part of the plurality of light sources corresponding to the lateral surface of one of the light guide plates being different from a row of at least part of a remaining portion of the plurality of light sources.05-19-2011
20090033603PROJECTION TYPE DISPLAY APPARATUS - A display apparatus has several light emitting elements and several lenses. The light emitting elements generate light of a first and second part of a frame respectively during a first and second period. The lenses pass through by the light from the light emitting elements, and operate to form images of the first and second part of the frame at a first and second location during the first and second period, respectively.02-05-2009
20110128212DISPLAY DEVICE HAVING AN INTEGRATED LIGHT SOURCE AND ACCELEROMETER - A display device having an illumination system with integrated accelerometer is disclosed in which a portion of the illumination system is used as the proof mass for the accelerometer. In one embodiment, the display device includes a plurality of display elements, one or more light sources, one or more light redirectors configured to redirect at least a portion of the light generated by the light sources to at least a portion of the plurality of display elements, one or more light detectors each configured to determine a light intensity, and a processor configured to determine one or more accelerations based on the determined light intensity.06-02-2011
20100220041Optoelectronic Device - A passive matrix display comprising an array of diodes disposed between a plurality of anode lines and a plurality of cathode lines, wherein at least some of the diodes are emissive diodes which are orientated in a forward direction relative to the cathode and anode lines and others of the diodes are sensing diodes orientated in a reverse direction relative to the cathode and anode lines.09-02-2010
20090219236Organic light emitting display device and method of driving the same - An organic light emitting display device is disclosed. The device has a drive circuit which generates a reference clock to be used for synchronizing data signals supplied to the pixels. The reference clock is based on the frame frequency. As a result, the display will provide images of consistent quality which do not vary with input data frequency.09-03-2009
20100053045ACTIVE MATRIX LIGHT EMITTING DISPLAY DEVICE AND DRIVING METHOD THEREOF - An active matrix display device comprises an array of display pixels, each pixel comprising: a current-driven light emitting display element (03-04-2010
20100053046BACKLIGHT DEVICE AND IMAGE DISPLAY APPARATUS USING THE SAME - In a backlight device that performs an area control, part of a plurality of light emitting sections is configured based on a relationship where, between at least two light emitting sections controlled by a first control unit, at least one light emitting section controlled by a second control unit that is different from the first control unit, is provided.03-04-2010
20100060555LIQUID CRYSTAL DISPLAY DEVICE AND DRIVING METHOD THEREOF - An LCD device adapted to apply an optimized luminance in correspondence with a brightness of each divisional region of image is disclosed. The LCD device uses dimming curves, which are provided differently from each other, for divisional regions which are divided from one frame and have different pixel numbers. Therefore, the LCD device can a luminance optimized to a brightness of each divisional region of image, thereby preventing a luminance mismatching phenomenon and a luminance nullity phenomenon.03-11-2010
20110084896LIGHT EMITTING DEVICE, DISPLAY DEVICE, AND IMAGE PICKUP APPARATUS - High visibility is ensured in indoor or outdoor environment by suppressing external light reflection while maintaining light extraction efficiency without accelerating degradation of the light emitting layer.04-14-2011
20100295760Advanced multi line addressing - A circuit for a flat panel display, capable of displaying images, is provided. The circuit includes an image storage and processing block for the images to be displayed, a display and timing controller block controlling the display operation, an image pixel matrix containing a multitude of rows and columns arranged pixel elements. The circuit also includes one or more controlled row driver blocks, one or more controlled column driver blocks, and a pixel display operation for displaying pixel elements employing an advanced multi line addressing operation applied to a row and/or column drive activated pixel element display operation. The advanced multi line addressing operation signifies that during every operating sequence a decomposition operation of image data is taking place by analyzing image data from multiple lines for common contents by pixel data comparison, separating common parts of the image data into a multi line data domain and residual parts of the image data into a single line data domain thus allowing for a display of these two data domains in separately activated pixel element display operations.11-25-2010
20110148746SEALED FLEXIBLE LIGHT EMITTING DIODE DISPLAY SYSTEM WITH REMOTE WATERPROOF CONTROL - A sealed flexible light emitting diode (LED) display system with remote waterproof control includes: a flexible light emitting diode display; a circuit board that controls the display; a connector that provides signals to the circuit board; an encapsulating material that encloses the circuit board and exposes the connector; and a control device that provides signals to the connector to display the information.06-23-2011
20080246705OFF-STATE LIGHT RECAPTURING IN DISPLAY SYSTEMS EMPLOYING SPATIAL LIGHT MODULATORS - In display systems employing spatial light modulators, the OFF-state light from OFF-state pixels of the spatial light modulator can be captured and directed back to the pixels of the spatial light modulator so as to recycle the OFF-state light in the display system.10-09-2008
20080252574LED display apparatus - An LED display apparatus 10-16-2008
20110163940OPTICAL ASSEMBLY AND DISPLAY APPARATUS THEREOF - An optical assembly is provided that may include a light emitting module that includes a plurality of light emitting devices to emit light, a light guide plate, and a side cover. The light guide plate may include at least one protrusion on a top surface of a first part of the light guide plate. The side cover includes a plurality of holes to receive the at least one protrusion.07-07-2011
20080198105Organic Light-Emitting Display Device and Driving Method Thereof - Provided is an organic light-emitting display device. The organic light-emitting display device includes a light-emitting unit having a plurality of OLEDs to emit light, a light-emitting level setting unit setting a light-emitting level depending on a light-emitting area and/or change in a light-emitting degree of the light-emitting unit, a look-up table in which data for the light-emitting degree of the light-emitting unit that corresponds to each light-emitting area for each light-emitting level is set and stored, a light-emitting control unit controlling the light-emitting area of the light-emitting unit and/or the light-emitting degree depending on a light-emitting level with reference to the data set on the look-up table.08-21-2008
20090201234Active matrix organic light emitting diode display - Provided is an active matrix light emitting diode (AMOLED) display. A driver circuit of the AMOLED display can be easily manufactured in a simple structure in a current programming method. The AMOLED display programs a voltage corresponding to a current necessary for the operation of an OLED in a memory capacitor, and induces and stores a voltage corresponding to a driving voltage in the memory capacitor while making a preset current flowing between a source and a drain of a driving transistor.08-13-2009
20100214198DISPLAY DEVICE - A display device includes a display panel, a flexible printed circuit and a back light module. The flexible printed circuit is suitable for supporting the driving element and is electrically connected to the display panel. The back light module includes at least one light source, a first frame and a second frame. The light source is disposed between the first frame and the second frame, and the display panel and the flexible printed circuit are disposed at one side of the first frame, wherein the first frame has at least an opening, the second frame has a element contacting surface, the driving element is disposed on the flexible printed circuit, and the element contacting surface protrudes from the opening for being connected to the driving element.08-26-2010
20100214200DISPLAY APPARATUS - A high-definition, high-intensity display apparatus having a plurality of semiconductor thin film light emitting elements and a plurality of linear electrodes connecting a power source to the light emitting elements, the linear electrodes being disposed so as to minimize the voltage drop across the linear electrodes.08-26-2010
20100026614METHOD AND APPARATUS FOR AUTO-COMMISSIONING OF LED BASED DISPLAY CONFIGURATIONS - A method of auto-commissioning a display configuration (02-04-2010
20090174633ORGANIC LIGHT EMITTING DIODE IDENTIFICATION BADGE - An organic light-emitting diode (OLED) display device used as an identifier of an entity, person, or user access level in an identification badge. With the illustrative embodiments, the access and/or identifying information displayed on the badge can be altered or concealed as needed. The identification badge comprises at least one OLED display device for displaying identification information about a user associated with the identification badge. The identification badge also comprises one or more buttons affixed to the identification badge for selection by the user. User selection of a first button on the identification badge conceals visibility of the identification information displayed in the OLED display device. User selection of a second button on the identification badge enables the identification information concealed from display in the OLED display device to become visible again.07-09-2009
20110134020ORGANIC LIGHT EMITTING DIODE DISPLAY - An organic light emitting diode display is disclosed. The display includes a first semitransparent electrode, an organic emissive layer placed on the first semitransparent electrode, a second semitransparent electrode placed on the organic emissive layer, and a first selective reflection layer placed on the second semitransparent electrode.06-09-2011
20110304525DISPLAY DEVICE AND ELECTRONIC DEVICE - It is an object of the present invention to provide a display device in which a reverse current sufficient enough to insulate a short-circuited point flows and a transistor using amorphous silicon is used is applied. The display device includes a switching transistor that controls an input of a video signal, a driving transistor that controls a current flowing in a forward direction to a light emitting element, and an AC transistor that controls a current flowing in a reverse direction to the light emitting element; and a reverse bias current can be applied to the light emitting element. Furthermore, the above-described transistors are N-channel transistors.12-15-2011
20080231566MINIMIZING DARK CURRENT IN OLED DISPLAY USING MODIFIED GAMMA NETWORK - The current drivers of an emissive display device such as an OLED display are shut off to have minimum drain current when sub-pixel current is measured, in order to minimize dark current during sub-pixel current measurement. The current drivers in the sub-pixels not under test are biased in such a manner as to reduce their leakage current to a minimum. Therfore, the signal to noise ratio between the OLED sub-pixel current and the panel dark current can be maximized.09-25-2008
20120146887LIGHT EMITTING DEVICE AND ELECTRONIC APPLIANCE - The present invention is to provide a light emitting device capable of obtaining a certain luminance without influence by the temperature change, and a driving method thereof. A current mirror circuit formed by using a transistor is provided for each pixel. The first transistor and the second transistor of the current mirror circuit are connected such that the drain currents thereof are maintained at proportional values regardless of the load resistance value. Thereby, a light emitting device capable of controlling the OLED driving current and the luminance of the OLED by controlling the drain current of the first transistor at a value corresponding to a video signal in a driving circuit, and supplying the drain current of the second transistor to the OLED, is provided.06-14-2012
20120154260Driving LED's - A drive circuit (DR) drives a plurality of LED strings (DS06-21-2012
20090073096PROGRAMMABLE LED DRIVER - An LED driver includes an embedded non-volatile memory (NVM) capable of being programmed and storing control data for setting a variety of features of the LED driver, such as the maximum current for driving the LEDs, analog parameters such as the resistance of the internal resistor for setting the reference current for the LEDs, and the operation modes of the charge pump of the LED driver. This enables implementation of multiple LED driver product options without the need for different metallization steps during the fabrication process for the LED driver.03-19-2009
20110090138LED display screen assembled from the front - A LED display screen includes a case, a LED display module and a front assembling system. The case has a front opening. The LED display module is received in the case via the front opening, including a supporting base, a LED display unit mounting in front of the supporting base, and a LED shade shading in front of the LED display unit. The front assembling system has a base channel, a display unit channel and a shade channel. The front assembling system includes a still member, a supporting member and a supporting member. The still member mounts behind the supporting base. The supporting member is provided on the case. The supporting member includes a body and a head. The body is inserted through the mounting hole to engage with the supporting member. The head is hidden inside the base channel to combine the LED display unit with the supporting base.04-21-2011
20110102306BACKLIGHT UNIT AND DISPLAY APPARATUS HAVING THE SAME - Disclosed is a display apparatus. The display apparatus includes: an image receiver configured to receive an image signal; an image processor configured to process the image signal received by the image receiver; a display panel configured to display an image based on the image signal processed by the image processor; a plurality of light guide plates configured to output light to corresponding display regions of the display panel; and a light source module configured to generate the light toward side surfaces of the light guide plates, wherein the light source module includes a plurality of light sources, coupled to the side surfaces of the light guide plates, to generate and transmit the light toward the respective light guide plates at corresponding positions of the side surfaces of the light guide plates which are changed from prior positions according to bends of the light guide plates.05-05-2011
20120299807LED DISPLAY SYSTEM - The present invention relates to a LED display system (11-29-2012
20090058772Organic light emitting display and method for driving the same - A method of driving an organic light emitting display device includes generating a luminance map for a plurality of pixels by applying the same driving voltage to driving transistors formed in the plurality of pixels of a panel and by capturing luminances of the pixels, generating a threshold voltage map by calculating threshold voltage correction values that compensate for threshold voltages of the driving transistors associated with the luminances of the pixels. A lookup table is generated by sampling the threshold voltage correction values stored in the threshold voltage map. Threshold voltage correction values are restored by interpolating the sampled threshold voltage correction values, and correcting a driving voltage by adding the restored threshold voltage correction values to input gray level data and by providing the added value to the panel.03-05-2009
20120176299ORGANIC LIGHT EMITTING DIODE DISPLAY - An organic light emitting diode display includes: a panel; a data driver connected to a data line formed on the panel; a gate driver crossing the data line in an insulated manner and connected to gate lines formed on the panel; an input line for receiving clock signals from the outside; a first connecting line electrically connected to the input line to supply the clock signal to the gate driver; a second connecting line electrically connected to the input line; and a third connecting line extended from the second connecting line to electrically connect the second connecting line and the first connecting line.07-12-2012
20120176298ORGANIC LIGHT EMITTING DIODE (OLED) DISPLAY APPARATUS HAVING LIGHT SENSING FUNCTION - An organic light emitting diode (OLED) display apparatus having an optical sensing function is provided. The OLED display apparatus may photograph an external object by sensing input light from the external object that passes through an imaging pattern included in a display panel.07-12-2012
20120256815DISPLAY MODULE - A display module to prevent the leakage current generated between a first electrode layer and a second electrode layer that constitute a pixel via an organic light emitting layer and obtains uniform luminance. An interlayer insulation layer is provided between an edge of a first electrode layer and an organic light emitting layer that constitute the pixel and the distance between the edge and a second electrode layer is secured sufficiently. Further, the interlayer insulation layer ILI is coated with a resin material having fluidity, and flatness is improved as a whole. An aperture that accommodates the organic light emitting layer is formed in this interlayer insulation layer and the coated organic light emitting layer is formed in uniform thickness and through a necessary and sufficient spread.10-11-2012
20120256814PIXEL CHIP, DISPLAY PANEL, LIGHTING PANEL, DISPLAY UNIT, AND LIGHTING UNIT - There are provided a pixel chip capable of preventing false lighting of a light emitting device, a display panel including the pixel chip as a pixel, a lighting panel including the pixel chip as a pixel, a display unit including the display panel, and a lighting unit including the lighting panel. The pixel chip includes: one or a plurality of light emitting devices; a driver IC driving the light emitting devices; a connection section that is arranged between the light emitting devices and the driver IC, and electrically connects the light emitting devices to the driver IC; and a light shielding section that is arranged between the light emitting devices and the driver IC, and blocks direct entrance of light emitted from each of the light emitting devices into the driver IC together with the connection section.10-11-2012
20120256813LOW TEMPERATURE CONTACT STRUCTURE FOR FLEXIBLE SOLID STATE DEVICE - A lighting assembly includes a light source having a first generally planar, light source including a perimeter edge. A backsheet is disposed in substantially parallel relation with the light source, and includes at least one electrical feedthrough region extending through the backsheet and substantially covered by a contact patch disposed in substantially planar relation between the backsheet and the light source. A generally planar, connector cable extends over the backsheet and has connector pad(s) positioned thereon to associate with each feedthrough and to the light source through the contact patch. A low temperature solder material is disposed between each connector pad and contact patch for establishing electrical connection with the light source, wherein one or more of the light source, connector cable, backsheet, or any portion thereof is constructed of one or more plastics.10-11-2012
20090021457Method for Displaying an Image on an Organic Light Emitting Display and Respective Apparatus - The driving of an active matrix organic light emitting display (AMOLED) shall be improved. A pulsing grayscale rendition shall be combined with an improved motion rendition when driving the AMOLED with analog signals. Therefore, there is provided a data signal which is applied to each cell of the AMOLED for displaying a first grayscale level of a pixel of the image during a first group of sub-frames for displaying at least a second grayscale level of a pixel of the image during at least a second group of sub-frames. The first group of sub-frames and the at least second group of sub-frames are constituting a video frame N. Each group of sub-frames is divided into a plurality of sub-frames. Each, the first group of sub-frames and the second group of sub-frames is belonging to a separate complete image of the display (AMOLED). The data signal of a cell comprises plural independent elementary data signals wherein each of the elementary data signals is applied to the cell during a sub-frame and the grayscale level displayed by the cell during the respective group of sub-frames depends on the amplitude of the elementary data signals and the duration of the sub-frames. With this concept, a flicker-free and a very high level of motion rendition can be offered.01-22-2009
20100328197ORGANIC LIGHT-EMITTING DISPLAY DEVICE AND THIN FILM DEPOSITION APPARATUS FOR MANUFACTURING THE SAME - A thin film deposition apparatus that can be used to manufacture large substrates on a mass scale and that improves manufacturing yield, and an organic light-emitting display device manufactured using the thin film deposition apparatus. The organic light-emitting display device includes: a substrate including a plurality of sub-deposition areas arranged parallel to each other; at least one thin film transistor formed on the substrate, the at least one thin film transistor comprising a semiconductor active layer, a gate electrode insulated from the semiconductor active layer, and source and drain electrodes contacting the semiconductor active layer; a plurality of pixel electrodes formed on the thin film transistor; a plurality of organic layers formed on each of the pixel electrodes; and a counter electrode formed on the organic layers, wherein the plurality of organic layers lie in each of the sub-deposition areas and have a larger shadow zone the further a distance from a center of the corresponding deposition area.12-30-2010
20080297452Apparatus, systems, and methods for dimming an active matrix light-emitting diode (LED) display - Apparatus, systems, and methods are provided for dimming pixels on an active matrix light-emitting diode display. One apparatus includes an LED couplable between a voltage source and ground. First and second pulse-width modulation (PWM) drivers are also coupled to the LED. A system includes a plurality of LEDs forming a plurality of rows coupled between a voltage source and ground. A plurality of PWM drivers, each coupled to each of the LEDs in one of the plurality of rows, and a global PWM driver coupled to each of the plurality of LEDs in each of the plurality of rows are also included. One method includes providing current to each LED of a row of LEDs for a first portion of a cycle via a PWM driver, and providing current to each LED in the row for a second portion of the cycle via a different PWM driver.12-04-2008
20080297453Method of Manufacturing Addressable and Static Electronic Displays - The present invention provides a method of manufacturing an electronic display. The exemplary method includes depositing a first conductive medium within a plurality of cavities of a substrate to form a plurality of first conductors. A plurality of electronic components in a suspending medium are then deposited within the plurality of cavities, and the plurality of electronic components are oriented using an applied field, followed by a bonding of the plurality of electronic components to the plurality of first conductors. A second, transmissive conductive medium is then deposited and bonded to the plurality of electronic components.12-04-2008
20100090934ISOLATING ALIGNMENT AND STRUCTURAL STRENGTH IN LED DISPLAY SYSTEMS - A display system, a method of constructing a display system, and a method of displaying an image are provided. In one embodiment, a display system includes a support structure having a plurality of attachment members and a plurality of tiles. Each of the plurality of tiles is attached to a corresponding attachment member of the plurality of attachment members. The support structure is configured to structurally support each of the plurality of tiles, and at least one of the plurality of tiles includes at least one connection configured to removably connect and align the at least one of the plurality of tiles with another one of the plurality of tiles.04-15-2010
20080231565Light emitting display device and driving method thereof - A method of driving an organic light emitting display device includes: receiving an image signal by sub-field with respect to a single frame comprising the N number of sub-fields (N is a natural number greater than 2) from the exterior; dividing a single sub-field into an address period and a display period and selectively calling a data signal of a single sub-field from the M number of sub-field memories (M is a natural number greater than 2); and applying the called data signal of the single sub-field to a sub-pixel.09-25-2008
20080224967LIGHT SOURCE CONTROL APPARATUS AND METHOD FOR CONTROLLING LIGHT SOURCE - A light source control apparatus and a method for controlling light source are provided. The light source control apparatus is used to controlling N light-emitting devices connected in series. N+1 nodes are sequentially defined at two terminals of each light-emitting device mentioned above, where N is a natural number. The light source control apparatus includes a testing circuit and a compensation circuit. The testing circuit is coupled to the nodes to transmit a testing current to light-emitting devices between Ith node and Jth node, where I and J are natural numbers, and N+1>=J>I>=1. The compensation circuit is coupled to the nodes to measure a brightness of light-emitting devices between Ith node and Jth node, decide a value of a compensation current according to an intensity of the brightness, and provide the compensation current to light-emitting devices between Ith node and Jth node.09-18-2008
20080224966LED DEVICE COMPENSATION METHOD - A method for controlling and compensating aging in an LED device includes measuring a performance change in light output of the LED device. The LED device is controlled with a first compensation algorithm derived from the measured performance change, during a first period, to effect a luminance change over time in the light output of the LED device. Subsequently, a second compensation algorithm, derived from the measured performance change, and different from the first compensation algorithm, during a second period, effects a second luminance change over time in the LED device's light output. The second luminance change over time in the second period is different from the first luminance change over time in the first period. Furthermore, the first and second periods together are less than the lifetime of the LED device.09-18-2008
20130169517POWER SUPPLYING APPARATUS, POWER SUPPLYING METHOD, ORGANIC LIGHT-EMITTING DIODE DISPLAY APPARATUS - A power supplying apparatus, a power supplying method, an organic light-emitting diode (OLED) display apparatus are provided. The OLED display apparatus includes: a plurality of components which are to perform an operation of the OLED display apparatus; a power supplying unit; a rectifier which rectifies an input voltage supplied from the power supplying unit; and a voltage level converter which converts a level of the input voltage rectified by the rectifier and supplies the input voltage having the converted level to the plurality of components.07-04-2013
20130176196Light Emitting Device - The invention provides a light emitting device which is capable of displaying on both sides, has a small volume, and is capable of being used as a module. A light emitting element represented by an EL element and the like is used in a pixel portion, and two pixel portions are provided in one light emitting device. A first pixel portion has a structure to emit light only from a counter electrode side of the light emitting element. A second pixel portion has a structure to emit light only from a pixel electrode side of the light emitting element. That is, in the first pixel portion and the second pixel portion, directions of light emission are reverse in front and back.07-11-2013
20130093655USER INTERFACE, APPLIANCE OF HOUSEHOLD OR INDUSTRIAL TYPE AND ARRANGEMENT OF APPLIANCES - The present application in particular is directed to a user interface 04-18-2013
20080204381Light emitting element drive apparatus and portable apparatus using same - A light emitting element drive apparatus capable of always outputting the lowest voltage satisfying the drive conditions and having a high light emitting efficiency and a low power loss, and a portable apparatus using the same, comprising an LED drive apparatus 08-28-2008
20130147695DISPLAY, METHOD FOR DRIVING DISPLAY, ELECTRONIC APPARATUS - Disclosed herein is a display including, a pixel array section configured to include power feed lines, scan lines disposed along rows, signal lines disposed along columns, and pixels that are disposed at intersections of the scan lines and the signal lines and are arranged in a matrix, each of the pixels including a drive transistor and a light-emitting device, one of a pair of current terminals as source and drain of the drive transistor being connected to the power feed line, and a power supply scanner configured to sequentially switch potential of each power feed line between higher potential and lower potential, wherein the power supply scanner switches the higher potential applied to the power feed line between first higher potential and second higher potential at different levels in a predetermined sequence.06-13-2013
20130147693ORGANIC LIGHT EMITTING DISPLAY AND DEGRADATION COMPENSATION METHOD THEREOF - An organic light emitting display includes a display panel including pixels, a degradation sensing circuit which senses a threshold voltage of organic light emitting diodes included in the pixels and calculates an average degradation value defined by an average luminance value due to the degradation based on the sensed threshold voltage, a compensation target adjustor which adjusts a compensation target based on the average degradation value, each time the average degradation value is reduced by a previously determined reference value, and a data modulator which adds and subtracts a luminance compensation value determined depending on the adjusted compensation target to and from digital video data and modulates the digital video data.06-13-2013
20100309102DISPLAY APPARATUS AND CONTROL METHOD THEREOF - A display apparatus including a light emitting body to improve external appearance thereof. The light emitting body is disposed inside a bezel to emit light. The bezel has a reflective surface to reflect light emitted from the light emitting body in front of the display apparatus. The bezel also has a light interruption groove to prevent light emitted from the light emitting body from affecting an image formed on the display module. The light emitting body is operatively connected to a user interface unit. A user manipulates a manipulation panel or a remote control to set an operation mode of the light emitting body from a menu item on an on screen display, and the light emitting body emits light in various forms based on the set mode.12-09-2010
20130093654Organic Light Emitting Diode Display - An organic light emitting diode (OLED) display according to the present invention includes: a pixel portion wherein an organic light emitting diode including a pixel electrode, an organic emission layer, and a common electrode is formed, and a periphery portion surrounding the pixel portion and having a plurality of common voltage lines applying a common voltage to the common electrode. The common voltage lines include a plurality of common voltage pads to which the common voltage is applied from an external source, a common voltage contact portion overlapping an end of the common electrode and contacting the common electrode, a common voltage connection portion connecting a common voltage pad and the common voltage contact portion. A width of the common voltage contact portion is larger than that of the common voltage connection portion.04-18-2013

Patent applications in class Solid body light emitter (e.g., LED)

Patent applications in all subclasses Solid body light emitter (e.g., LED)