发明申请
US20130069852A1 LIGHT-EMITTING COMPONENT DRIVING CIRCUIT AND RELATED PIXEL CIRCUIT AND APPLICATIONS
审中-公开
发光元件驱动电路及相关像素电路及应用
- 专利标题： LIGHT-EMITTING COMPONENT DRIVING CIRCUIT AND RELATED PIXEL CIRCUIT AND APPLICATIONS
- 专利标题（中）： 发光元件驱动电路及相关像素电路及应用
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申请号： US13607811申请日： 2012-09-10
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公开(公告)号： US20130069852A1公开(公告)日： 2013-03-21
- 发明人: Wen-Tui Liao , Wen-Chun Wang , Hsi-Rong Han , Chih-Hung Huang
- 申请人： Wen-Tui Liao , Wen-Chun Wang , Hsi-Rong Han , Chih-Hung Huang
- 申请人地址： TW Taichung City
- 专利权人： WINTEK CORPORATION
- 当前专利权人： WINTEK CORPORATION
- 当前专利权人地址： TW Taichung City
- 优先权： TW100133558 20110919; TW101126310 20120720
- 主分类号： G09G3/32
- IPC分类号： G09G3/32
摘要：
A pixel circuit related to an organic light-emitting diode (OLED) is provided. When signals having appropriate operation waveforms are supplied, the circuit configuration (7T1C or 5T1C) of the pixel circuit keeps the current flowing through an OLED unaffected by the impact of IR drop on a power supply voltage Vdd (or mitigates the impact of the power supply voltage Vdd on the current) and prevents the current flowing through the OLED from changing with the Vth shift of a TFT for driving the OLED. Thereby, the luminance uniformity of an OLED display adopting the pixel circuit is greatly improved.
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