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发明授权
CN1987620B 液晶显示器及其补偿馈通电压的方法 失效 - 权利终止

液晶显示器及其补偿馈通电压的方法
摘要：
本发明涉及一种液晶显示器，其每一像素单元包括一薄膜晶体管、一公共电极与一像素电极，该像素电极与该公共电极形成一液晶电容，该薄膜晶体管包括栅极、源极和连接至该像素电极的漏极，上述电路中接入包括一比较器的电压补偿单元，当加载电压至该液晶电容时，该比较器可比较该薄膜晶体管从开启至关闭时间段的源极电位和该薄膜晶体管关闭后的漏极电位并输出补偿电压信号，以补偿该薄膜晶体管的馈通电压。本发明的液晶显示器可降低馈通效应引起的闪烁现象。另外，本发明还提供一种液晶显示器的补偿馈通电压的方法。
摘要（英）：

The invention relates to liquid crystal display (LCD). Each pixel unit of the LCD includes a thin film transistor (TFT), a common electrode, and a pixel electrode. The pixel unit and the common electrode form a liquid crystal capacitance. TFT includes a grid, a source electrode, and a drain electrode connected to a pixel electrode. Voltage compensation unit including a comparator is connected to the above circuit. When voltage is loaded to the liquid crystal capacitance, the comparator compares potential of source electrode of TFT in time period from starting up time to closing time with potential of drain electrode after TFT shuts down, and then outputs signal of compensation voltage in order to compensate feed through voltage of TFT. The disclosed LCD can lower twinkling caused by feed through effect. The invention also discloses method for compensating feed through voltage of LCD.

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