Invention Grant
- Patent Title: Direct backlight module
- Patent Title (中): 直接背光模组
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Application No.: US13807295Application Date: 2012-12-04
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Publication No.: US09405149B2Publication Date: 2016-08-02
- Inventor: Yewen Wang
- Applicant: Shenzhen China Star Optoelectronics Technology Co., LTD.
- Applicant Address: CN Shenzhen, Guangdong Province
- Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
- Current Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
- Current Assignee Address: CN Shenzhen, Guangdong Province
- Agent Cheng-Ju Chiang
- Priority: CN201210341641 20120914
- International Application: PCT/CN2012/085774 WO 20121204
- International Announcement: WO2014/040344 WO 20140320
- Main IPC: G09F13/04
- IPC: G09F13/04 ; F21V7/04 ; G02F1/1335 ; F21V8/00

Abstract:
The present invention provides a direct backlight module, which includes a backplane, a plurality of LED light bars retained on the backplane, a plurality of light guide plates arranged alternate with respect to the LED light bars, and a diffusion plate mounted on the backplane. The direct backlight module includes the light guide plates that are arranged between the LED light bars to improve utilization rate of light energy of the LED light bars so as to reduce the number of LED lights included in the LED light bars to thereby reduce the manufacturing cost. Further, the arrangement of the light guide plates effectively shortens the light mixing distance and enhances homogeneity of light illumination and also reduces the thickness of backlight module to thereby facilitate thinning of a liquid crystal display device.
Public/Granted literature
- US20150205165A1 Direct Backlight Module Public/Granted day:2015-07-23
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