| Patent application number | Description | Published |
|---|
| 20090027315 | Organic light emitting display and driving method thereof - An organic light emitting display is disclosed. The display comprises: a scan driver for sequentially supplying a scan signal to scan lines during scan periods of a plurality of sub-frames included in a frame; a data driver for supplying a data signal to data lines when the scan signal is supplied; pixels disposed at a display region of a panel to be coupled to the scan lines and the data lines, and receiving a first power source voltage and a second power source voltage; at least one dummy organic light emitting diode disposed at a non-display region of the panel; and a power source block for supplying an electric current to the dummy organic light emitting diode and for generating the first power source voltage based on a voltage of the dummy organic light emitting diode corresponding to the electric current. | 01-29-2009 |
| 20090027369 | Organic light emitting display and driving method thereof - An organic light emitting display configured to be driven using a frame divided into a plurality of sub-frames includes a data driver configured to supply a plurality of data signals to output lines during a first period of one horizontal period of the sub-frame, a scan driver configured to sequentially supply a scan signal to scan lines during a second period of the one horizontal period of the sub-frame, a demultiplexer coupled to each output line, the demultiplexer being configured to supply the data signals to a plurality of data lines, buffers configured to supply buffers supplying signals from the demulitplexers to the data lines, the buffers including PMOS transistors, and pixels disposed at intersections of the scan lines and the data lines, the pixels being configured to display images corresponding to the data signals. | 01-29-2009 |
| 20090207104 | DEMULTIPLEXER AND ORGANIC LIGHT EMITTING DISPLAY DEVICE USING THE SAME - An organic light emitting display device, wherein the device 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, demultiplexers coupled to the output lines for supplying the data signals to data lines, and pixels located at crossing regions of the data lines and the scan lines. Each of the demultiplexers includes a switch coupled between a corresponding one of the output lines and a first data line of the data lines, and a second data line of the data lines is directly coupled to the corresponding one of the output lines. | 08-20-2009 |
| 20090207110 | ORGANIC 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 |
| 20090295772 | PIXEL AND ORGANIC LIGHT EMITTING DISPLAY USING THE SAME - A pixel and an organic light emitting display using the same are provided. The display displays an image having desired gray levels while allowing the voltage of data signals to be reduced. The pixel includes an organic light emitting diode; a driving transistor for supplying a current to the organic light emitting diode; a switching transistor configured to supply a data signal from a data line to a gate electrode of the driving transistor based on a scan signal from a scan line; a storage capacitor coupled between the gate electrode of the driving transistor and a source electrode of the driving transistor; and an initialization transistor coupled between the source electrode of the driving transistor and an initialization power voltage. | 12-03-2009 |
| 20090295782 | ORGANIC LIGHT EMITTING DISPLAY AND METHOD OF DRIVING THE SAME - An organic light emitting display and a driving method thereof that reduces false contour noise and the occurrence of a stripe pattern generated in a digital driving manner. The organic light emitting display includes a scan driver for supplying a scan signal to scan lines, a data driver for supplying a data signal to data lines, and pixels coupled to the scan lines and the data lines. Each of the pixels includes an organic light emitting diode. The organic light emitting diodes of the pixels coupled to a scan line are alternately positioned in a first horizontal line and a second horizontal line adjacent to the first horizontal line, respectively. | 12-03-2009 |
| 20100091001 | Pixel and organic light emitting display device using the same - A pixel capable of preventing abnormal light emission thereof. A pixel includes an organic light emitting diode coupled between a first power source and a second power source; a pixel circuit unit having a driving transistor coupled between the first power source and the organic light emitting diode to supply driving current to the organic light emitting diode during a light emitting period; and a bypass unit coupled between the pixel circuit unit and a bias power source, the bypass unit being turned on during a non-light emitting period in which the driving transistor is turned off. | 04-15-2010 |
