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
- Patent Title: Liquid crystal display device, compensation circuit and TFT voltage shutdown method thereof
- Patent Title (中): 液晶显示装置,补偿电路及其TFT电压关断方法
-
Application No.: US13824394Application Date: 2013-02-06
-
Publication No.: US09052539B2Publication Date: 2015-06-09
- Inventor: Poshen Lin , Yu Wu
- Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
- Applicant Address: CN Shenzhen, Guangdong
- Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
- Current Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
- Current Assignee Address: CN Shenzhen, Guangdong
- Agent Andrew C. Cheng
- Priority: CN201310046003 20130205
- International Application: PCT/CN2013/071477 WO 20130206
- International Announcement: WO2014/121474 WO 20140814
- Main IPC: G02F1/133
- IPC: G02F1/133 ; G09G3/36

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.
Public/Granted literature
- US20140333863A1 Liquid Crystal Display Device, Compensation Circuit and TFT Voltage Shutdown Method Thereof Public/Granted day:2014-11-13
Information query