发明名称 |
Pixel and organic light emitting display device using the same |
摘要 |
A display device displays an image having a substantially uniform brightness by compensating for variations of the threshold voltages of driving transistors and compensating for the deterioration of an organic light emitting diode. A pixel includes an organic light emitting diode, two transistors, a storage capacitor, and a compensation unit. A driving transistor supplies a current to an OLED corresponding to the voltage in the storage capacitor. The compensation unit controls a voltage of a gate electrode of the driving transistor corresponding to a deterioration of the organic light emitting diode, and couples one electrode of the driving transistor to the data line during a compensation period, during which a threshold voltage of the driving transistor is compensated. |
申请公布号 |
US8599114(B2) |
申请公布日期 |
2013.12.03 |
申请号 |
US20100686885 |
申请日期 |
2010.01.13 |
申请人 |
KIM YANG-WAN;CHOI WOONG-SIK;SAMSUNG DISPLAY CO., LTD. |
发明人 |
KIM YANG-WAN;CHOI WOONG-SIK |
分类号 |
G09G3/30;G09G3/36;G09G5/00 |
主分类号 |
G09G3/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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