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Patent Searching and Data


Title:
LIQUID CRYSTAL DISPLAY DEVICE AND BACK LIGHT MODULE
Document Type and Number:
WIPO Patent Application WO/2012/155367
Kind Code:
A1
Abstract:
A liquid crystal display device and a back light module are provided. The back light module includes: an aluminum extrusion (202), an LED circuit board (203) arranged on the aluminum extrusion (202) and a light guide plate (201). An LED (204) is placed on the LED circuit board (203), wherein, the aluminum extrusion (202) is provided with a positioning part (207). The positioning part (207) is placed between the LED (204) and the light guide plate (201), and abuts against the incident surface of the light guide plate (201). The back light module can position the light guide plate (201) and the LED (204) by the positioning part (207) which is arranged between the LED (204) and the light guide plate (201) on the aluminum extrusion (202), and positioning factors which affect the light coupling distance between the LED (204) and the light guide plate (201) are reduced by the positioning and assembling mode of the LED (204), so that the light coupling efficiency can be assured.

Inventors:
CHANG KUANG YAO (CN)
FANG LINDONG (CN)
Application Number:
PCT/CN2011/075038
Publication Date:
November 22, 2012
Filing Date:
May 31, 2011
Export Citation:
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Assignee:
SHENZHEN CHINA STAR OPTOELECT (CN)
CHANG KUANG YAO (CN)
FANG LINDONG (CN)
International Classes:
G02F1/13357
Foreign References:
CN201129668Y2008-10-08
CN101183194A2008-05-21
CN1991500A2007-07-04
CN101556403A2009-10-14
JP2007279593A2007-10-25
JP2008251220A2008-10-16
JP2008152983A2008-07-03
US7344293B22008-03-18
CN101886772A2010-11-17
CN101975375A2011-02-16
CN101770095A2010-07-07
CN200997036Y2007-12-26
Attorney, Agent or Firm:
SHENZHEN CENTURY-FOREVER INTELLECTUAL PROPERTY OFFICE (CN)
深圳市世纪恒程知识产权代理事务所 (CN)
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Claims: