| Patent application number | Description | Published |
|---|
| 20090250693 | Thin film transistor, display device, including the same, and associated methods - A thin film transistor (TFT), including a substrate, a gate electrode on the substrate, an oxide semiconductor layer including a channel region, a source region, and a drain region, a gate insulating layer between the gate electrode and the oxide semiconductor layer, and source and drain electrodes in contact with the source and drain regions of the oxide semiconductor layer, respectively, wherein the oxide semiconductor layer has a GaInZnO (GIZO) bilayer structure including a lower layer and an upper layer, and the upper layer has a different indium (In) concentration than the lower layer. | 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 |
| 20110042666 | Organic light emitting display device - An organic light emitting display device including a plurality of scan lines arranged in a first direction, a plurality of data lines arranged in a second direction, the plurality of data lines intersecting with the plurality of scan lines, and pixels respectively disposed at intersection portions of the scan and data lines, each pixel including at least one thin film transistor (TFT) and an organic light emitting diode, wherein the TFT is an oxide TFT, the oxide TFT including a first oxide semiconductor layer as an active layer, and a second oxide semiconductor layer is disposed between intersecting scan and data lines. | 02-24-2011 |
| 20110057181 | Organic light emitting diode display - An organic light emitting diode (OLED) display includes a substrate main body, a thin film transistor formed on the substrate main body, and an OLED formed on the substrate main body. The thin film transistor includes a gate electrode, an oxide semiconductor layer disposed on the gate electrode in an insulated manner, and source and drain electrodes respectively contacting the oxide semiconductor layer. Parts of the source and drain electrodes contacting the oxide semiconductor layer are separated from the gate electrode in a direction that is parallel with the substrate main body by a predetermined distance. | 03-10-2011 |
| 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 |
| 20110163309 | Organic light-emitting display device and method of manufacturing the same - An organic light-emitting display device includes a substrate, a plurality of thin-film transistors on the substrate, each thin-film transistor including an active layer, a planarization layer on the thin-film transistors, a first electrode on the planarization layer and electrically connected to a thin-film transistor, and an ion blocking layer on the planarization layer, the ion blocking layer overlapping the active layer. | 07-07-2011 |
| 20110220879 | Organic light emitting display - An organic light emitting display (OLED) including a thin film transistor (TFT) including a gate electrode, an active layer, and source and drain electrodes, the active layer being insulated from the gate electrode and including an oxide semiconductor and the source and drain electrodes being insulated from the gate electrode and contacting the active layer; a first insulation layer covering the TFT; a second insulation layer on the first insulation layer, the second insulation layer being formed of amorphous silicon without doping; a pixel electrode on the second insulation layer; a third insulation layer on the second insulation layer, the third insulation layer covering an edge of the pixel electrode; an organic light emitting layer on the pixel electrode; and a facing electrode on the organic light emitting layer and the third insulation layer. | 09-15-2011 |
| 20110273419 | PIXEL CIRCUIT OF A FLAT PANEL DISPLAY DEVICE AND METHOD OF DRIVING THE SAME - A pixel circuit of a flat panel display device and a method for driving thereof are provided. The pixel circuit includes a first transistor having a first gate electrode coupled to a scan line, a second electrode coupled to a data line, a second gate electrode coupled to a controlling signal line, and a first electrode, a second transistor having a first gate electrode coupled to the first electrode of the first transistor, a second electrode coupled to a first voltage source, a second gate electrode coupled to the controlling signal line, and a first electrode, a capacitor coupled between the first gate electrode of the second transistor and the first electrode of the second transistor, and an organic light emitting diode coupled between the first electrode of the second transistor and a second voltage source, in which the threshold voltage of the first and second transistors may be controlled to the required level by supplying a controlling signal of a fixed voltage level to the second gate electrodes of the first and second transistors through the controlling signal line. | 11-10-2011 |
