Invention Grant
US09052539B2 Liquid crystal display device, compensation circuit and TFT voltage shutdown method thereof 有权
液晶显示装置,补偿电路及其TFT电压关断方法

Liquid crystal display device, compensation circuit and TFT voltage shutdown method thereof
Abstract:
The present invention provides a liquid crystal display device, compensation circuit and TFT voltage shutdown method. The compensation circuit includes first capacitor, first resistor, second resistor and operational amplifier; wherein first terminal of first capacitor connected to receiving terminal of gate driver of LCD for receiving shutdown voltage to shutdown TFT; first terminal of first resistor connected to second terminal of first capacitor; first terminal of second resistor connected to second terminal of first resistor and second terminal of second resistor connected to output terminal of operational amplifier; positive input terminal of operational amplifier receiving an externally supplied shutdown voltage for gate driver, and negative input terminal of operational amplifier connected to second terminal of first resistor; wherein connection between first capacitor and receiving terminal of gate drive independent from connection between output terminal of operational amplifier and receiving terminal of gate driver.
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