发明名称 |
Display device and driving method thereof |
摘要 |
A display device includes a display unit including a plurality of scan lines, a plurality of data lines to which a plurality of compensation data signals are transmitted, a plurality of light emitting signal lines, and a plurality of pixels respectively connected to the plurality of scan lines, the plurality of data lines, and the plurality of light emitting signal lines, and a data driver generating a data voltage corresponding to a image data signal, and converting the data voltage to the compensation data signal. The data driver includes a compensator generating the compensation data signal in accordance with a feedback voltage. The feedback voltage is determined by a degree of deterioration associated with each pixel, and increases with an increasing deterioration degree of the pixel. |
申请公布号 |
US8896585(B2) |
申请公布日期 |
2014.11.25 |
申请号 |
US201112929802 |
申请日期 |
2011.02.16 |
申请人 |
Samsung Display Co., Ltd. |
发明人 |
Yoo Myoung-Hwan;Oh Choon-Yul |
分类号 |
G06F3/038;G09G5/00;G09G3/32 |
主分类号 |
G06F3/038 |
代理机构 |
Lee & Morse, P.C. |
代理人 |
Lee & Morse, P.C. |
主权项 |
1. A display device, comprising:
a display unit including a plurality of scan lines to which a plurality of scan signals are transmitted, a plurality of data lines to which a plurality of compensation data signals are transmitted, a plurality of light emitting signal lines to which a plurality of light emitting signals are transmitted, and a plurality of pixels respectively connected to the plurality of scan lines, the plurality of data lines, the plurality of light emitting signal lines, and a first power source voltage; and a data driver configured to generate a data voltage corresponding to an image data signal and to convert the data voltage into a compensation data signal, wherein the data driver includes a compensator configured to generate an additive voltage by adding the first power source voltage to the data voltage, to receive a feedback voltage corresponding to a threshold voltage of a driving transistor of each pixel according to a compensation control signal generated in synchronization with the scan signal, the feedback voltage corresponding to a voltage difference between the first power source voltage and the threshold voltage of the driving transistor, and to generate a difference between the additive voltage and the feedback voltage as the compensation data signal. |
地址 |
Yongin, Gyeonggi-Do KR |