Patent application number | Description | Published |
20090251452 | Organic light emitting display apparatus and method of driving the same - An organic light emitting display apparatus capable of preventing degradation of a driving transistor includes a third transistor in the pixel circuit with the third transistor removing a voltage stress applied to a gate electrode of the driving transistor by applying a ground voltage to the gate electrode of the first transistor according to a second scan signal. The third transistor is different from the driving transistor and the switching transistor. A method of driving the organic light emitting display apparatus is also provided. | 10-08-2009 |
20100128021 | PIXEL AND ORGANIC LIGHT EMITTING DISPLAY DEVICE USING THE SAME - The present invention provides a pixel comprising: organic light emitting diodes emitting corresponding to the amount of a driving current; a first transistor whose first electrode is coupled to a first power supply, second electrode is coupled to the organic light emitting diodes, and gate is coupled to a first node, the first transistor forming the driving current corresponding to a voltage of the first node; a second transistor transferring data signals to the first node corresponding to a first scan signal; a third transistor applying a negative voltage to the first node corresponding to a third scan signal; and a capacitor maintaining the voltage of the first node, and an organic light emitting display device using the same. | 05-27-2010 |
20110012104 | Organic light emitting display device and fabricating method thereof - An organic light emitting display includes data lines and scan lines intersecting each other, a scan driving unit for supplying a scan signal to the scan lines, a data driving unit for supplying a data signal to the data lines, and pixels defined at intersection points of the data and scan lines, each pixel having an organic light emitting diode, a first TFT with an inverted staggered top gate structure and connected to the organic light emitting diode, the first TFT including an oxide semiconductor as an active layer, and a second TFT with an inverted staggered bottom gate structure and configured to receive the scan signal from the scan lines, the second TFT including an oxide semiconductor as an active layer. | 01-20-2011 |
20110101330 | ORGANIC LIGHT EMITTING DISPLAY AND METHOD OF MANUFACTURING THE SAME - An organic light emitting display is disclosed. The display comprises a transistor with an active layer comprising an oxide semiconductor material. The oxide semiconductor material has conductivity suitable for the transistor because of a diffusion path allowing hydrogen to escape from the active layer. | 05-05-2011 |
20110104833 | ORGANIC LIGHT EMITTING DISPLAY AND METHOD OF MANUFACTURING THE SAME - An organic light emitting display is disclosed. The display has a pixel which includes a transistor and a capacitor. The active layer of the transistor and at least one of the electrodes of the capacitor comprise a semiconductor oxide. | 05-05-2011 |
20110127519 | ORGANIC LIGHT EMITTING DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME - An organic light emitting display device and a method for manufacturing the same. The organic light emitting display device includes: an insulating layer formed on a substrate; a resistance layer of oxide semiconductor formed on the insulating layer; a wiring layer connected to both side portions of the resistance layer; an organic layer formed on the upper portion including the resistance layer and the wiring layer; and a capping layer formed on the organic layer to be overlapped with the resistance layer. | 06-02-2011 |
20110175882 | PIXEL CIRCUIT, AND DISPLAY APPARATUS AND METHOD OF DRIVING DISPLAY APPARATUS USING THE PIXEL CIRCUIT - A pixel circuit for a display apparatus is disclosed. The pixel circuit includes two scan transistors. The scan transistors are driven such that when not connecting a storage capacitor to a data line, one of the scan transistors is off, and one of the scan transistors is driven with a voltage to reverse a threshold shift caused by the voltage applied to turn the transistor off. | 07-21-2011 |
20110279417 | DISPLAY PANEL OF A SOLID DISPLAY APPARATUS, FLEXIBLE DISPLAY APPARATUS, AND METHOD OF MANUFACTURING THE DISPLAY APPARATUSES - A display panel of a solid display apparatus including: a pixel unit having pixels formed on surfaces constituting a polyhedron; scan drive units generating scan signals and supplying the scan signals to the pixels; and data drive units generating data signals according to input images and supplying the data signals to the pixels, wherein the pixel unit is formed on a flexible substrate. | 11-17-2011 |
20120001885 | ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE AND MANUFACTURING METHOD OF THE SAME - An organic electroluminescent display device capable of improving yield by preventing voltage drop of a power supply wire and a manufacturing method of the same. An organic electroluminescent display device according to an exemplary embodiment of the present invention includes: a plurality of sub-pixels defined by an active area displaying an image and an inactive area other than the active area; a driving switching element formed in the inactive area of the sub-pixel to supply driving current; and a power supply wire supplying power to the sub-pixel, wherein the power supply wire includes a first power supply wire extending in a vertical direction at one portion of a long side of the sub-pixel, a dummy power supply wire disposed on the first power supply wire and electrically connected with the first power supply wire, and a second power supply wire extending in a horizontal direction at one portion of a short side of the sub-pixel. | 01-05-2012 |
20120026144 | ORGANIC LIGHT EMITTING DISPLAY DEVICE - There is provided an organic light emitting display device for preventing short and voltage drop between lines to improve yield. The organic light emitting display device includes: a plurality of sub-pixels located at crossing regions of a plurality of gate lines and a plurality of data lines; first power lines for supplying a voltage for driving the sub-pixels, each of the first power lines being shared by two adjacent sub-pixels from among the plurality of sub-pixels; and initial power lines for supplying an initial power to the sub-pixels, each of the initial power lines being shared by the two adjacent sub-pixels and located between the two adjacent sub-pixels. | 02-02-2012 |
20120074408 | ORGANIC LIGHT EMITTING DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME - An organic light emitting display device includes: a thin-film transistor (TFT) including an active layer, a gate electrode including a gate bottom electrode and a gate top electrode, a source electrode, and a drain electrode; an organic electroluminescent (EL) device electrically connected to the TFT and including a stack of a pixel electrode at the same layer as and including the same material as the gate bottom electrode, an intermediate layer including an emissive layer, and a counter electrode; a first pad electrode at the same layer as and including the same material as the gate bottom electrode; and a second pad electrode including a second pad bottom electrode at the same layer as and including the same material as the gate bottom electrode, and a second pad top electrode at the same layer as and including the same material as the gate top electrode. | 03-29-2012 |
20120074420 | Organic light emitting diode display and manufacturing method thereof - An organic light emitting diode (OLED) display includes: a substrate; a semiconductor layer on the substrate; a gate insulating layer covering the semiconductor layer; a gate electrode formed in the gate insulating layer and overlapping the semiconductor layer; a pixel electrode formed in a pixel area over the gate insulating layer; an interlayer insulating layer covering the gate electrode and the gate insulating layer, and exposing the pixel electrode through a pixel opening; a source electrode and a drain electrode formed in the interlayer insulating layer and connected to the semiconductor layer; and a barrier rib covering the interlayer insulating layer, the source electrode, and the drain electrode, and the drain electrode contacts a side wall of the pixel opening and is connected to the pixel electrode. Such an OLED display may have an improved aperture ratio. | 03-29-2012 |
20120104939 | ORGANIC LIGHT EMITTING DISPLAY DEVICE - An organic light emitting display device is disclosed. In certain embodiments, the display has improved quality and lower cost because the subpixels of the display are oriented to have their longer sides parallel to the longer sides of the display. With the orientation, during crystallization of the subpixels, laser radiation is projected across the display device in a direction parallel to the short sides of the display device. Accordingly, less expensive laser equipment producing a shorter beam width may be used. | 05-03-2012 |
20120105412 | ORGANIC ELECTROLUMINESCENCE EMITTING DISPLAY - An organic light emitting display capable of substantially preventing IR drop of a power source wiring line and coupling of data lines is disclosed. In one aspect, the organic light emitting display includes pairs of data lines between adjacent sub-pixels. The data lines are arranged to run parallel with a coupling blocking wiring line provided between each pair. | 05-03-2012 |
20120176299 | ORGANIC 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 |
20120176348 | Organic Light Emitting Diode Display - An organic light emitting diode display comprises: a panel including a first substrate and a second substrate facing each other; a data driver connected to a data line formed on the panel; a gate driver connected to a gate line crossing the data line in an insulated manner and formed on the panel; an input line for receiving a clock signal from the an external source; a first connecting line formed on the first substrate and electrically connected to the input line for supplying the clock signal to the gate driver; a second connecting line formed on the second substrate and electrically connected to the input line; and a third connecting line for electrically connecting the first connecting line to the second connecting line. | 07-12-2012 |
20120188290 | DRIVER AND DISPLAY DEVICE USING THE SAME - A driver and a display device using the same may be provided. The driver, according to an exemplary embodiment includes at least one logic unit, receiving a plurality of clock signals and a plurality of input signals, to generate and sequentially transmit output signals to a plurality of pixel rows included in a display unit, and a buffer unit, receiving a plurality of control signals, to generate and simultaneously transmit the output signals of a same waveform to a plurality of pixels included in the display unit, wherein the at least one logic unit is supplied with a logic power source voltage, and the buffer unit is supplied with a buffer power source voltage, the buffer power source voltage being different from the logic power source voltage. | 07-26-2012 |
20120211752 | ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE - An organic electroluminescent display device including a plurality of scan lines and a plurality of data lines crossing the scan lines, a plurality of pixels at regions defined by the scan lines and the data lines, and one or more thin-film transistors (TFTs) for selectively applying voltages to each of the pixels, wherein the data lines are successively located at a side of the pixels, and a first TFT of the TFTs is located at least partially between an area corresponding to an n | 08-23-2012 |
20120293496 | Organic Light Emitting Diode Display Device - An OLED display device includes first and second group pixels that emit light during first and second fields, respectively; first and second scan lines respectively coupled to the first and second group pixels; and first and second power lines for respectively supplying first and second power voltages to the first and second group pixels. The first and second power lines are coupled with first electrodes of the respective storage capacitors of the first and second group pixels, and the first power voltage is supplied as a first level voltage for a first period during which the first group pixels concurrently emit light. The first and second power lines are coupled with first electrodes of the respective storage capacitors of the first and second group pixels, and the first power voltage is supplied as a first level voltage for a first period during which the first group pixels concurrently emit light. | 11-22-2012 |
20130033465 | ORGANIC LIGHT EMITTING DIODE DISPLAY - An organic light emitting diode (OLED) display including: a substrate including a pixel area; a peripheral area enclosing the pixel area; a gate line; a data line; corresponding driving lines; a pixel electrode; an organic light emitting layer; a common electrode; and a getter formed at the peripheral area and partially overlapping the common electrode, wherein the driving lines overlapping the getter have a plurality of openings filled with the getter such that the getter amount may be increased, thereby increasing the moisture absorption amount. | 02-07-2013 |
20130044095 | ORGANIC LIGHT EMITTING DISPLAY DEVICE AND METHOD FOR MANUFACTURING THE SAME - An organic light emitting diode (OLED) display includes: a substrate; a first and a second thin film transistor (TFT) both disposed on the substrate and both having an active layer, a gate, a source and a drain electrode. A gate line is connected to the gate electrode of the first TFT, and a data line is connected to the source electrode of the first TFT. A common power source line is connected to the source electrode of the second TFT, intersects the gate line, and is parallel to the data line. A pixel electrode is connected to the drain electrode of the second TFT. An organic emission layer is disposed on the first electrode. A common electrode line is disposed on the organic emission layer. A secondary common power source line is formed with the same material as and is parallel to the common electrode line. | 02-21-2013 |
20130056735 | ORGANIC LIGHT EMITTING DISPLAY APPARATUS AND METHOD OF MANUFACTURING THE SAME - An organic light-emitting display apparatus includes a thin film transistor on a display region of a substrate, the thin film transistor faces an encapsulation member, an organic light-emitting device on the display region that includes an intermediate layer having an organic emission layer, a sealing member that is between the substrate and the encapsulation member and that surrounds the display region, an internal circuit unit between the display region and the sealing member, a passivation layer that extends to cover the internal circuit unit, a pixel defining layer on the passivation layer, and a getter between the substrate and the encapsulation member, and the getter at least partially overlaps the internal circuit unit. | 03-07-2013 |
20130299790 | ORGANIC LIGHT-EMITTING DISPLAY APPARATUS AND MANUFACTURING METHOD THEREOF - An organic light-emitting display apparatus includes a thin film transistor including an active layer, a gate electrode, a source electrode, and a drain electrode, an organic light-emitting device including a pixel electrode connected to the thin film transistor, an intermediate layer including a light-emitting layer, and an opposed electrode, and a first wiring and a second wiring arranged in different layers on a substrate. | 11-14-2013 |
20140103304 | ORGANIC LIGHT EMITTING DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME - An organic light emitting display device including: a plurality of first wirings extending in a first direction; and a plurality of second wirings extending in a second direction that crosses the first direction, wherein at least one of the plurality of first wirings includes a first conductive layer and a second conductive layer that extends from an upper portion of the first conductive layer to the same layer as the first conductive layer or a lower layer than the first conductive layer. | 04-17-2014 |
20140117860 | DISPLAY APPARATUS AND METHOD OF REPAIRING THE SAME - Provided is a display apparatus including a plurality of unit pixels, each including a plurality of sub-pixels; a first line branched in a first direction from a common line as many as the number of sub-pixels in each of the unit pixels so as to connect sub-pixels emitting light of the same color in neighboring unit pixels to each other; a second line extending in a second direction that crosses the first direction and connected to the sub-pixels; and a third line adjacent to the second line, extending in the second direction, and including a hole formed on a portion where the first line and the third line cross each other, and connected to the sub-pixels. | 05-01-2014 |
20140152646 | CUBIC DISPLAY AND MANUFACTURING METHOD THEREOF - A multisided display device includes a flexible substrate configured to have a shape of a polyhedron and including a plurality of flattened portions, a plurality of bending portions, a first surface having a plurality of pixels thereon, and a second surface opposite the first surface, a plurality of rigid substrates corresponding to the plurality of flattened portions and positioned at the second surface of the flexible substrate, a scan driver for supplying a scan signal to the plurality of pixels, and a data driver for supplying a data signal to the plurality of pixels. | 06-05-2014 |
20140167626 | ORGANIC LIGHT-EMITTING DIODE, ORGANIC LIGHT-EMITTING DISPLAY DEVICE INCLUDING THE SAME, AND METHOD OF CONTROLLING DUAL EMISSION OF ORGANIC LIGHT-EMITTING DIODE - An organic light-emitting diode, an organic light-emitting display device including the same, and a method of controlling dual emission of the organic light-emitting diode. The organic light-emitting diode includes: a first electrode and a second electrode facing each other; a common electrode interposed between the first electrode and the second electrode; a first organic layer interposed between the first electrode and the common electrode; and a second organic layer that is interposed between the second electrode and the common electrode and is reverse-symmetric to the first organic layer with respect to the common electrode. | 06-19-2014 |
20140186978 | METHOD OF MANUFACTURING ORGANIC LIGHT-EMITTING DISPLAY APPARATUS - Provided is a method of manufacturing an organic light-emitting display apparatus which may reduce white angular dependency (WAD). The method includes forming a common layer on each of subpixel areas at the same time without discretion within one pixel area, the common layer not being formed on connection areas between pixel areas. | 07-03-2014 |
20140291624 | ORGANIC LIGHT EMITTING DEVICE DISPLAY AND MANUFACTURING METHOD THEREOF - Provided is an organic light emitting display including a pixel circuit unit prepared over a substrate and comprising a plurality of thin film transistors (TFTs), and an organic light emitting device or diode (OLED) electrically connected to the pixel circuit unit. The pixel circuit unit and the OLED are connected through a repair unit comprising a semiconductor material, in order to facilitate easy repair. | 10-02-2014 |
20140292827 | ORGANIC LIGHT-EMITTING DISPLAY DEVICE, METHOD OF REPAIRING THE SAME, AND METHOD OF DRIVING THE SAME - An organic light-emitting display device includes a plurality of emission pixels aligned in columns and rows, each of the emission pixels including an emission device and a first pixel circuit coupled to the emission device, a dummy pixel including a second pixel circuit in each column of the emission pixels, and a repair line in each column, wherein a same data signal is provided to one of the emission pixels coupled to the repair line and to the dummy pixel coupled to the repair line, and wherein the emission pixels are configured to simultaneously emit light. | 10-02-2014 |
20150103103 | ORGANIC LIGHT-EMITTING DISPLAY APPARATUS - A display apparatus includes a plurality of sub-pixel groups. At least one of the sub-pixel groups includes a plurality of first sub-pixels to emit a first color of light, a plurality of second sub-pixels to emit a second color of light, and a dummy pixel between the first sub-pixels and the second sub-pixels. A first dummy driving transistor is connectable to one of the first sub-pixels and a second dummy driving transistor is connectable to one of the second sub-pixels. | 04-16-2015 |
20150349037 | ORGANIC LIGHT-EMITTING DISPLAY APPARATUS AND METHOD OF MANUFACTURING THE SAME - Provided is a method of manufacturing an organic light-emitting display apparatus which may reduce white angular dependency (WAD). The method includes forming a common layer on each of subpixel areas at the same time without discretion within one pixel area, the common layer not being formed on connection areas between pixel areas. | 12-03-2015 |