Invention Grant
US09024540B2 Overvoltage protection method for backlight drive circuit of 2D/3D mode and backlight drive circuit using same
有权
二维/三维模式背光驱动电路的过电压保护方法及使用其的背光驱动电路
- Patent Title: Overvoltage protection method for backlight drive circuit of 2D/3D mode and backlight drive circuit using same
- Patent Title (中): 二维/三维模式背光驱动电路的过电压保护方法及使用其的背光驱动电路
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Application No.: US13814743Application Date: 2013-01-06
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Publication No.: US09024540B2Publication Date: 2015-05-05
- Inventor: Hua Zhang , Xianming Zhang
- 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
- International Application: PCT/CN2013/070085 WO 20130106
- International Announcement: WO2014/101309 WO 20140703
- Main IPC: G05F1/00
- IPC: G05F1/00 ; H05B33/08
Abstract:
The present invention provides an overvoltage protection method for backlight drive circuit of 2D/3D mode and a backlight drive circuit using the method. The method includes: providing a liquid crystal display, the liquid crystal display having a 2D mode and a 3D mode, the liquid crystal display including a backlight drive circuit; the backlight drive circuit using the first overvoltage protection voltage level as an overvoltage protection voltage level when the liquid crystal display is set in the 2D mode; and the backlight drive circuit using the second the overvoltage protection voltage level as an overvoltage protection voltage level when the liquid crystal display is set in the 3D mode, the second the overvoltage protection voltage level being greater than the first overvoltage protection voltage level. Different overvoltage protection voltage levels are provided for the 2D and 3D modes so as to alleviate impact on components by over voltage.
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Information query
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