发明名称 |
Organic light emitting display device and method of driving the same |
摘要 |
There is provided an organic light emitting display device and a method of driving the same. The organic light emitting display device includes pixels, a data driver, a scan driver to sequentially supply scan signals to scan lines, and a control line driver configured to supply emission control signals to emission control line. The data driver is to discharge the gate electrodes of the driving transistors of the pixels at a uniform discharge speed in a third period within a second period, wherein the second period is after the first period, the third period corresponds to a light emitting gray scale of each pixel, and after the second period, the pixels emit light. |
申请公布号 |
US9508288(B2) |
申请公布日期 |
2016.11.29 |
申请号 |
US201414558934 |
申请日期 |
2014.12.03 |
申请人 |
SAMSUNG DISPLAY CO., LTD. |
发明人 |
Kim Min-Cheol;Kim In-Hwan;Jun Byung-Geun |
分类号 |
G09G3/30;G09G3/32 |
主分类号 |
G09G3/30 |
代理机构 |
Lee & Morse P.C. |
代理人 |
Lee & Morse P.C. |
主权项 |
1. An organic light emitting display device, comprising:
pixels, each pixel including a driving transistor, gate electrodes of driving transistors being initially charged by a reference voltage through current paths formed between first electrodes of the driving transistors and second electrodes of the driving transistors in a first period; a data driver including a current sink, the data driver to discharge the initially charged gate electrodes of the driving transistors of the pixels at a constant discharge speed by the current sink in a third period within a second period, wherein: the second period is after the first period, a length of the third period corresponds to a light emitting gray scale of each pixel, and the pixels emit light after the second period; a scan driver to sequentially supply scan signals to scan lines; and a control line driver to supply emission control signals to emission control lines, wherein the current sink has a constant sinking current in the third period. |
地址 |
Yongin, Gyeonggi-Do KR |