Liquid Crystal Display Device, Compensation Circuit and TFT Voltage Shutdown Method Thereof

摘要

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.

主权项

1. A compensation circuit for liquid crystal display device, which comprises: a first capacitor, a first resistor, a second resistor and an operational amplifier;
wherein the first terminal of the first capacitor being connected to the receiving terminal of the gate driver of the liquid crystal display device for receiving shutdown voltage to shutdown TFT; the first terminal of the first resistor being connected to the second terminal of the first capacitor; the first terminal of the second resistor being connected to the second terminal of the first resistor and the second terminal of the second resistor being connected to the output terminal of the operational amplifier; the positive input terminal of the operational amplifier receiving an externally supplied shutdown voltage for the gate driver, and the negative input terminal of the operational amplifier being connected to the second terminal of the first resistor; wherein the connection between the first capacitor and the receiving terminal of the gate drive being independent from the connection between the output terminal of the operational amplifier and the receiving terminal of the gate driver.