Patent ID: 9052539
Filing Date: 2015-06-09
Classification: G02F,G09G

Abstract:
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.