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Dong-Hwi
Dong-Hwi Kim, Yongin-City KR
| Patent application number | Description | Published |
|---|---|---|
| 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 |
| 20110102403 | PIXEL AND ORGANIC LIGHT EMITTING DISPLAY USING THE SAME - A pixel capable of compensating for the deterioration of an organic light emitting diode (OLED). The pixel includes an OLED coupled between first and second power sources, a pixel circuit including a driving transistor coupled between the first power source and the OLED and having a gate electrode coupled to a first node so that driving current corresponding to a voltage applied to the first node is supplied to the OLED, and a compensation circuit for controlling the voltage of the first node in accordance with deterioration of the OLED to compensate for the deterioration of the OLED. The compensation circuit includes first and second transistors coupled between the OLED and a third power source, first and second feedback capacitors coupled between the first node and a second node that is between the first transistor and the second transistor, and a third transistor coupled to the third power source. | 05-05-2011 |
Dong-Hwi Kim, Suwon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090146987 | PIXEL AND ORGANIC LIGHT EMITTING DISPLAY - A pixel at an ith pixel row (i is a natural number) includes an organic light emitting diode (OLED); a driving transistor for supplying a current to the OLED and a storage capacitor between a gate electrode of the driving transistor and an (i−1)th emission control line; and a compensating unit for controlling a voltage of the gate electrode of the driving transistor to compensate for deterioration of the OLED. The compensating unit includes: a first compensating unit transistor and a second compensating unit transistor between the OLED and a first power source; first and second feedback capacitors between a second node between the first and second compensating unit transistors and a first node between the gate electrode of the driving transistor and the storage capacitor; and a third compensating unit transistor coupled between a third node between the first and second feedback capacitors and a reference voltage source. | 06-11-2009 |
| 20090251392 | PIXEL AND ORGANIC LIGHT EMITTING DISPLAY DEVICE - A pixel and an organic light emitting display device using the same is provided. The pixel includes an organic light emitting diode (OLED). A pixel circuit controls an amount of current that flows into the OLED. In the pixel, the pixel circuit includes a first transistor controlling an amount of current that flows into a second power source via the OLED from a first power source. A storage capacitor is positioned between a gate electrode of the first transistor and the second power source. A boosting capacitor is positioned between the gate electrode of the first transistor and a boost line. | 10-08-2009 |
| 20100110050 | Organic light emitting display device - An organic light emitting display device comprising: a data driver supplying data signals to data output lines; a scan driver supplying scan signals sequentially to scan output lines; a light emitting control line driver supplying light emitting control signals to light emitting control output lines; and a pixel unit including a plurality of pixels connected to the output lines of each driver, at least one driver having a buffer circuit disposed at each output line. Each buffer circuit comprises a transistor having a gate layer, source and drain layers and a metal layer for shielding Electro-Static Discharge (ESD), wherein the metal layer is formed over the gate layer when the gate layer is overlapped by one of the source or a drain electrodes, or the metal layer is formed to not overlap the gate layer when the gate layer is not overlapped by the source or a drain electrodes. | 05-06-2010 |
Dong-Hwi Lee, Seoul KR
| Patent application number | Description | Published |
|---|---|---|
| 20100010977 | Dictionary Suggestions for Partial User Entries - In accordance with some embodiments, a server receives a partial search query from a client device that is located remotely from the server, and predicts from the partial search query a set of predicted complete queries relevant to the partial search query, where the predicted complete queries comprise previously submitted complete queries submitted by a community of users. The partial search query and the set of predicted complete queries are in the same language. In addition, the server obtains translations of at least a subset of the set of predicted complete queries, where the translations are in a different language from the set of predicted complete queries, and conveys both the set of predicted complete queries and the corresponding translations to the client device. | 01-14-2010 |