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| 20100245269 | Organic light emitting display apparatus and method of manufacturing the same - An organic light emitting display apparatus includes a substrate; a display unit formed on the substrate and comprising an organic light emitting device; and a touch panel formed on the display unit, wherein the touch panel further includes a sealing substrate, a ground layer formed on a surface of the sealing substrate, a first pattern layer formed on a surface of the sealing substrate opposite to the surface of the sealing substrate on which the ground layer is formed, a first insulating layer formed on the first pattern layer, a second pattern layer formed on the first insulating layer, and a second insulating layer formed on the second pattern layer. | 09-30-2010 |
| 20110177640 | Method for manufacturing an organic light emitting diode display - A method for manufacturing an organic light emitting diode (OLED) display includes forming a first electrode having different thicknesses corresponding to a first pixel, a second pixel, and a third pixel, forming a first emission layer, a second emission layer, and a third emission layer respectively corresponding to the first pixel, the second pixel, and the third pixel, and forming a second electrode on the first emission layer, the second emission layer, and the third emission layer, wherein forming the first electrodes includes forming a first electrode material layer on the substrate, forming a photoresist pattern having different thicknesses corresponding to the first pixel, the second pixel, and the third pixel, respectively, and etching the first electrode material layer along with the photoresist pattern. | 07-21-2011 |
| 20120001206 | Organic light emitting diode display and fabricating method thereof - An organic light emitting diode display and a fabrication method thereof, the display including a substrate; a thin film transistor on the substrate; and an organic light emitting diode on the substrate, the organic light emitting diode including a pixel electrode, an organic emission layer, and a common electrode, wherein the organic emission layer includes a red (R) pixel, a green (G) pixel, and a blue (B) pixel, the pixel electrode includes a first pixel electrode, a second pixel electrode, and a third pixel electrode that respectively correspond to the red pixel, the green pixel, and the blue pixel, the first pixel electrode, the second pixel electrode, and the third pixel electrode each have different thicknesses, and the first pixel electrode, the second pixel electrode, and the third pixel electrode each include a first hydrophobic layer. | 01-05-2012 |
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| 20110121299 | ORGANIC LIGHT-EMITTING DISPLAY - An organic light-emitting display apparatus including a thin-film transistor (TFT) is disclosed. In one embodiment, the organic light-emitting display apparatus includes a thin-film transistor (TFT) and an organic light-emitting device electrically connected to the TFT. The apparatus further includes a light blocking portion formed directly above at least a portion of the TFT and configured to prevent light, emitted from the organic light-emitting device, from entering the portion of the TFT. | 05-26-2011 |
| 20110227505 | ORGANIC LIGHT EMITTING DISPLAY DEVICE - An organic light emitting display device includes a display unit having pixels located at crossing regions of scan, control, data and sensing lines. Scan, control line, and data drivers respectively supply scan, control, and data signals to the scan, control, and data lines. A switching unit selectively couples the data lines to output lines of the data driver, a reference voltage source, or a negative bias voltage source. A sensing unit senses degradation information of an organic light emitting diode in the pixels and threshold voltage of a driving transistor in the pixels through the sensing lines. A control block stores the sensed degradation information and threshold voltage information. A timing controller is configured to generate a second data by converting an externally inputted first data using the degradation information and the threshold voltage information, and supply the second data to the data driver. | 09-22-2011 |
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| 20090261322 | FULL-COLOR ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE AND METHOD OF FABRICATING THE SAME - A full-color organic light emitting diode display device and a method of fabricating the same. The display device includes a substrate having red, green and blue light emitting regions, a first electrode on the substrate, an organic layer on the first electrode and including red, green and blue light emitting layers respectively corresponding to the red, green and blue light emitting regions, and a second electrode on the entire surface of the substrate. Here, the organic layer includes a hole injection layer and an electron transport layer, and the organic layer in the red right emitting region includes a hole suppression layer including a material in the electron transport layer. The method includes forming the hole suppression layer on the red light emitting layer in the red light emitting region. In the method, the hole suppression layer is formed of a material for forming the electron transport layer. | 10-22-2009 |
| 20090261722 | ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE - An organic light emitting diode (OLED) display device for displaying a white color using a first color and a second color that are complementary to each other. The OLED display device includes a substrate, a lower electrode on the substrate in a first direction, a first organic layer on a first region of the lower electrode and having a first EML for displaying a first color, a second organic layer on a second region of the lower electrode and having a second EML for displaying a second color that is complementary to the first color, and an upper electrode disposed on the first and second organic layers in a second direction crossing the first direction, wherein the first organic layer has a different thickness from the second organic layer. In addition, a thin film transistor (TFT) may disposed between the substrate and the lower electrode. | 10-22-2009 |
| 20090302313 | ORGANIC LIGHT EMITTING DIODE AND METHOD OF FABRICATING THE SAME - Provided is an organic light emitting diode which can easily control color coordinates and improve a device's life span characteristic by using an auxiliary dopant having a higher band gap energy than that of a host, and preferably, having an absolute value of the highest occupied molecular orbital energy level equal to or higher than that of the host, or an absolute value of the lowest unoccupied molecular orbital energy level equal to or lower than that of the host. | 12-10-2009 |
| 20090302750 | ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE - Provided is an organic light emitting diode display device which can improve brightness and color coordinate characteristics in all emission wavelength ranges, and thus can enhance light extraction efficiency and color reproducibility. The organic light emitting diode display device includes a substrate, a first electrode disposed on the substrate, an organic layer disposed on the first electrode and having an emission layer, a second electrode disposed on the organic layer, and first and second refraction layers. A stack of the first and second refraction layers is disposed either between the first electrode and the substrate or on the second electrode. A refractive index of the first refraction layer is smaller than a refractive index of the second refraction layer. A thickness of the first refraction layer is no greater than 100 nm. | 12-10-2009 |
| 20090302759 | ORGANIC LIGHT EMITTING DIODE AND METHOD OF FABRICATING THE SAME - An organic light emitting diode and a method of fabricating the same. The organic light emitting diode includes a substrate, a first electrode on the substrate, emission layers on the first electrode including red, green and blue pixel regions, and a second electrode on the emission layers. The organic light emitting diode further includes an electron transport layer on the emission layers, and an intermediate layer formed by co-depositing metal quinolate and an organic material between at least one of the emission layers and the electron transport layer. The intermediate layer inhibits hole transport and increases a life span of the red pixel region. | 12-10-2009 |
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| 20090321732 | THIN FILM TRANSISTOR, METHOD OF MANUFACTURING THE SAME AND FLAT PANEL DISPLAY DEVICE HAVING THE SAME - A thin film transistor (TFT) using an oxide semiconductor as an active layer, a method of manufacturing the TFT, and a flat panel display device having the TFT include source and drain electrodes formed on a substrate; an active layer formed of an oxide semiconductor disposed on the source and drain electrodes; a gate electrode; and an interfacial stability layer formed on at least one of top and bottom surfaces of the active layer. In the TFT, the interfacial stability layer is formed of an oxide having a band gap of 3.0 to 8.0 eV. Since the interfacial stability layer has the same characteristics as a gate insulating layer and a passivation layer, chemically high interface stability is maintained. Since the interfacial stability layer has a band gap equal to or greater than that of the active layer, charge trapping is physically prevented. | 12-31-2009 |
| 20110095274 | ORGANIC LIGHT-EMITTING DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME - An organic light-emitting display device, which may be configured to prevent moisture or oxygen from penetrating the organic light-emitting display device from the outside is disclosed. An organic light-emitting display device, which is easily applied to a large display device and/or may be easily mass produced is further disclosed. Additionally disclosed is a method of manufacturing an organic light-emitting display device. An organic light-emitting display device may include, for example, a thin-film transistor (TFT) including a gate electrode, an active layer insulated from the gate electrode, source and drain electrodes insulated from the gate electrode and contacting the active layer and an insulating layer disposed between the source and drain electrodes and the active layer; and an organic light-emitting diode electrically connected to the TFT. The insulating layer may include, for example, a first insulating layer contacting the active layer; and a second insulating layer formed of a metal oxide and disposed on the first insulating layer. | 04-28-2011 |
| 20110108831 | ORGANIC LIGHT EMITTING DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME - An organic light emitting display device and a method of manufacturing the device are disclosed. The method includes forming a layer over an oxide semiconductor layer to protect the oxide semiconductor layer from damage as further layers are formed and etched. | 05-12-2011 |
| 20110114957 | THIN FILM TRANSISTOR AND ORGANIC LIGHT EMITTING DISPLAY APPARATUS - A thin film transistor (TFT) and an organic light emitting display apparatus are provided. The TFT includes: a substrate; a gate electrode on the substrate; an active layer insulated from the gate electrode; source/drain electrodes electrically connected to the active layer; a first insulating film on the source/drain electrodes; a light blocking layer on the first insulating film; and a second insulating film on the light blocking layer. | 05-19-2011 |
| 20110127533 | ORGANIC LIGHT-EMITTING DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME - An organic light-emitting display device which may be configured to prevent oxygen or water from penetrating from the outside and which may be more easily mass produced is disclosed. A method of manufacturing an organic light-emitting display device is also disclosed. The organic light-emitting display device may include, for example, a thin-film transistor (TFT) with a gate electrode, an active layer electrically insulated from the gate electrode, source and drain electrodes electrically insulated from the gate electrode and contacting the active layer, an organic light-emitting diode electrically connected to the TFT and an insulating layer interposed between the TFT and the organic light-emitting diode. The insulating layer may include, for example, a first insulating layer covering the TFT, a second insulating layer formed of metal oxide and formed on the first insulating layer and a third insulating layer formed of metal oxide or metal nitride and formed on the second insulating layer. | 06-02-2011 |
| 20110220888 | Capacitor and organic light emitting display device - A capacitor of an organic light emitting display device includes a first metal layer on a substrate, a first insulating layer on the first metal layer, an oxide semiconductor layer on the first insulating layer, the oxide semiconductor layer corresponding to the first metal layer, a second insulating layer on the first insulating layer, the second insulating layer including an opening exposing a portion of the oxide semiconductor layer, and a second metal layer on the second insulating layer and in the opening, the second metal layer being connected to the exposed portion of the oxide semiconductor layer. | 09-15-2011 |
| 20110297948 | ORGANIC LIGHT-EMITTING DISPLAY - An organic light-emitting display is disclosed. In one embodiment, the display includes i) a substrate, ii) a thin film transistor formed on the substrate, and comprising i) a gate electrode, ii) an active layer electrically insulated from the gate electrode, and iii) source and drain electrodes that are electrically connected to the active layer and iii) a first electrode electrically connected to the thin film transistor. The display further includes an intermediate layer formed on the first electrode and comprising an organic emission layer and a second electrode formed on the intermediate layer, wherein the source electrode or the drain electrode has an optical blocking portion extending in the direction of substrate thickness. | 12-08-2011 |
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| 20100013811 | PHOTO SENSOR AND ORGANIC LIGHT EMITTING DISPLAY USING THE SAME - A photo sensor capable of reducing the distortion of signals output from the photo sensor to output a correct measured value and an organic light emitting display using the same. The organic light emitting display includes a pixel unit formed on a transparent substrate to display an image in response to scan signals and data signals, a scan driver generating the scan signals to transmit the scan signals to the pixel unit, a data driver generating the data signals to transmit the data signals to the pixel unit, and a photo sensor including a sensing unit sensing brightness of ambient light to output a sensing signal and a control unit for receiving the sensing signal to output a brightness control signal for controlling brightness of the image. The sensing unit disposed in a predetermined region of the transparent substrate and includes a first photo diode receiving a first driving power source to generate optical current so that a magnitude of the optical current is controlled in response to the brightness of the ambient light, a first capacitor for storing the optical current, and a first switch coupled between the first driving power source and the first photo diode to perform a switching operation. | 01-21-2010 |
| 20100141593 | Stylus pen and flat panel display apparatus including the same - A stylus pen includes a body portion, and an end portion on the body portion, the end portion including a reflecting unit and adapted to contact a touch screen. The reflecting unit is adapted to reflect light toward a display apparatus including the stylus pen, so light receiving accuracy of a photosensor in the display apparatus is increased. | 06-10-2010 |
| 20110122096 | METHOD OF DRIVING TOUCH SCREEN DISPLAY APPARATUS, MEDIUM FOR RECORDING METHOD, AND TOUCH SCREEN DISPLAY APPARATUS - A touch screen display apparatus includes a touch detector for detecting a touch by an object and for generating an input signal, a panel including photo sensor units for capturing an image of the object, and a plurality of light emitting units for realizing an image to be displayed, a signal converter for converting the input signal into an output signal having a plurality of enable periods and at least one disable period, an updating unit for updating a noise determination reference of a sensing signal provided from the photo sensor unit during the at least one disable period, and a noise remove for removing noise from the sensing signal is according to the updated noise determination reference during an enable period of the enable periods. | 05-26-2011 |
| 20110233387 | Light sensor circuit and driving method thereof - Embodiments provide a light sensor circuit for a flat panel display which improves resolution at low luminance and increases the range of sensible ambient light by divisionally driving a frame period, in which light is sensed, into a plurality of sub-frames, and a method of driving the light sensor circuit. | 09-29-2011 |
| 20110254871 | DISPLAY DEVICE AND METHOD FOR DRIVING THE SAME - A display device includes a plurality of pixels, each of said plurality of pixels includes a driving transistor and a light emitting diode, a compensator to receive first and second pixel currents generated by the plurality of pixels according to first and second data voltages respectively applied to the plurality of pixels, the compensator to calculate an image data compensation amount to compensate for variations in characteristics of the driving transistor of each of said plurality of pixels and a data selector to transmit the first and second data voltages to the plurality of pixels and to transmit the first and second pixel currents to the compensator, the compensator to measure the first and second pixel currents generated as a result of the first and second data voltages corresponding to different gray scale levels and to calculate an actual threshold voltage and mobility of the driving transistor of each of the pixels, the compensator including a measurement resistor, the compensator to control a resistance value of the measurement resistor, the measurement resistor to convert the first pixel current corresponding to the first data voltage into a first measured voltage and the second pixel current corresponding to the second data voltage into a second measured voltage. | 10-20-2011 |
| 20110279436 | Display device and driving method thereof - An organic light emitting diode (OLED) display includes a display unit including a plurality of pixels, a plurality of scan lines, and a plurality of data lines, a data driver transmitting a plurality of data signals to the plurality of data lines, a scan driver transmitting a plurality of scan signals to the plurality of scan lines, a compensation controller supplying a predetermined first current to each organic light emitting diode in each of the plurality of pixels during a sensing period for measuring a driving voltage of the organic light emitting diode for each of a plurality of pixels, receiving the driving voltage of the organic light emitting diode supplied with the first current, and outputting measuring data for the transmitted driving voltage; and a signal controller compensating an input video signal according to the measuring data to generate image data. The compensation controller is separate from and external to the data driver. | 11-17-2011 |
| 20110279437 | Organic light emitting display and driving method thereof - An organic light emitting diode (OLED) display and a driving method thereof include an OLED, a driving transistor supplying a driving current to the OLED, a data line transmitting a data signal to the driving transistor, a first switch including a first electrode connected to one electrode of the OLED and a second electrode connected to the data line, and a second switch including a first electrode connected to the data line and a second electrode connected to the gate electrode of the driving transistor. The first switch is turned on such that a predetermined first current is transmitted to the OLED, the voltage of one electrode of the OLED is received through the data line, the deterioration degree of the OLED is detected according to the transmitted voltage, and the data signal transmitted to the data line is compensated according to the detected deterioration. | 11-17-2011 |
| 20110279444 | DISPLAY DEVICE TO COMPENSATE CHARACTERISTIC DEVIATION OF DRVING TRANSISTOR AND DRIVING METHOD THEREOF - A display device includes a display having a plurality of pixels, a compensator that for each of a plurality of pixels, calculates an image data compensation amount that compensates a characteristic deviation of a driving transistor of each pixel by measuring the first pixel current generated by the first data voltage and the second pixel current generated by the second data voltage obtained by amending the first data voltage, and initializes a panel capacitor that is parasitic on a plurality of data lines connected to the plurality of pixels in the measurement of the first pixel current and the measurement of the second pixel current; and a signal controller that generates an image data signal by reflecting the compensation amount of the image data. It is possible to shorten a compensation period for compensating a characteristic deviation between driving transistors, and since a data writing period in which a data signal is written in each pixel and a light emitting period in which, after the writing of the data signal corresponding to each pixel is completed, the entire pixel emits light at once, making it possible to more efficiently display the image. | 11-17-2011 |
| 20110298836 | ORGANIC LIGHT EMITTING DIODE DISPLAY AND DRIVING METHOD THEREOF - An organic light emitting diode display is disclosed. A signal from the pixels in the display is transmitted to a circuit which compensates the image data according to the signal, which is indicative of one or more of ageing of the organic light emitting diodes, the threshold voltages of the driving transistors, and current mobility of the driving transistors. | 12-08-2011 |
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| 20100013824 | ORGANIC LIGHT EMITTING DISPLAY AND METHOD OF DRIVING THE SAME - An organic light emitting display capable of preventing erroneous emission from being generated at the initial stage of driving the organic light emitting display and a method of driving the same. The organic light emitting display includes a display unit including data lines, scan lines, emission control lines, and pixels coupled to the data lines, the scan lines, and the emission control lines. A data driver is coupled to the data lines for transmitting data signals. A scan driver is coupled to the scan lines for transmitting scan signals. An emission control driver is coupled to the emission control lines for transmitting emission control signals. A controller is provided for transmitting a plurality of control signals for controlling the data driver, the scan driver, and the emission control driver, and outputting a first control signal for preventing currents from flowing to organic light emitting diodes of the pixels. | 01-21-2010 |
| 20100039423 | SCAN DRIVER AND ORGANIC LIGHT EMITTING DISPLAY USING THE SAME - An organic light emitting display generates scan signals with a scan driver that includes a plurality of stages. A first stage among the plurality of stages includes a first signal processor receiving a start pulse and a second clock to generate a first output signal, a second signal processor receiving the start pulse and a first clock to generate a second output signal, a third signal processor receiving the first output signal, the second output signal, and a third clock to generate a first scan signal, and a fourth signal processor receiving the first output signal, the second output signal, and a fourth clock to generate a second scan signal. | 02-18-2010 |
| 20110080393 | Driver and organic light emitting diode display using the same - A driver comprises odd-numbered stages configured to be driven by first and second clock signals and even-numbered stages configured to be driven by the second and third clock signals. Each stage is coupled to a corresponding emission control line, and includes a first driver, a second driver, and a third driver. In a first stage, the first and second drivers receive first and second start pulses and output first and second output signals, respectively. In each stage except the first stage, the first and second driver receives first and second output signals of a previous stage and outputs first and second output signals of each stage, respectively. In each stage, a third driver receives the first and second output signals of each stage and outputs an emission control signal to be transmitted to an emission control line coupled to each stage. | 04-07-2011 |
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| 20110216097 | ORGANIC LIGHT-EMITTING DISPLAY DEVICE AND DRIVING METHOD THEREOF - An organic light-emitting diode (OLED) display device capable of reducing power consumption within a range in which an image quality is not lowered, and a method of driving the OLED display device. The OLED display device includes: an image analyzer for obtaining an emission ratio and a saturation of an input source image, the emission ratio indicating light-emitted degrees of pixels constituting the input source image; an emission ratio adjuster for adjusting the emission ratio according to the saturation; a brightness adjuster for adjusting the brightness of the input source image according to the adjusted emission ratio; a data driver for establishing a data voltage of a data signal corresponding to the input source image based on the adjusted original brightness; and a pixel unit including an organic light-emitting diode (OLED), the pixel unit being configured to establish a driving current according to the data voltage. | 09-08-2011 |
| 20110227958 | FLAT PANEL DISPLAY APPARATUS AND METHOD OF COMPENSATING FOR DARK SPOTS THEREOF - A flat panel display apparatus capable of preventing a reduction in yield due to dark spots thereof, and a method of compensating for the dark spots are disclosed. The apparatus includes: a display unit including a plurality of pixels, each pixel including a subpixel of a first color, a subpixel of a second color and a subpixel of third color, where the first color, the second color and the third color are different from each other; an image signal input unit; a dark spot detection unit configured to detect a color and location of a dark spot subpixel that comprises a dark spot; a neighboring subpixel detection unit configured to identify location of one or more neighboring same color subpixels that are adjacent to the dark spot subpixel and having the same color as the dark spot subpixel; a luminance detection unit configured to detect a luminance of the one or more neighboring same color subpixels; and a control unit configured to coordinate increasing the luminance of all or a subset of the one or more neighboring same color subpixels. | 09-22-2011 |
| 20110273626 | Display Device and Gamma Setting Method for the Same - A display device receiving a video signal including grayscale data and displaying images according to the input video signal includes: a photosensor measuring illuminance of external light; a timing controller processing the data signal according to a target gamma value corresponding to the measured illuminance among a plurality of gamma values for a reference curved line representing a relationship of a lightness variation according to a change of grayscale data to be applied to the measured illuminance environment; a data driver applying the processed data signal to a plurality of pixels; and a scan driver applying a scan signal to the plurality of pixels for the data signal to be applied to the plurality of pixels. Accordingly, an image or a motion picture may be displayed with a desired grayscale without influence of external light, and the display quality may be obtained in an external light environment without increasing power consumption. | 11-10-2011 |
