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Patent Searching and Data


Title:
BACKLIGHT UNIT HAVING HIGH LIGHT COUPLING EFFICIENCY
Document Type and Number:
WIPO Patent Application WO/2016/206127
Kind Code:
A1
Abstract:
A backlight unit having high light coupling efficiency comprises a light guide panel (10), a first light source component (11), a second light source component (12), and a heat sink (13) arranged adjacent to two side walls of the light guide panel (10), wherein the heat sink (13) is simultaneously in contact with a first base board (11a) of the first light source component (11) and a second base board (12a) of the second light source component (12) and arranged at a bottom of the light guide panel (10). The backlight unit comprises the lateral light source components (11, 12) adjacent to the two side walls of the light guide panel (10), and the heat sink (13) configured to dissipate heat of the lateral light source components by effectively dissipating heat energy generated during operation of the light source components (11, 12), thereby preventing a mura phenomenon as a result of thermal expansion of the light guide panel (10) and a change in a light coupling distance, while providing a space maintaining piece (14) between the light guide panel (10) and each of the light source components (11, 12) to prevent from damaging an LED owing to the thermal expansion of the light guide panel (10) in an overheat condition.

Inventors:
FAN YONG (CN)
Application Number:
CN2015/082692
Publication Date:
December 29, 2016
Filing Date:
June 29, 2015
Export Citation:
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Assignee:
SHENZHEN CHINA STAR OPTOELECT (518132, CN)
International Classes:
G02F1/133; F21S8/00; F21V29/83
Foreign References:
CN101876765A2010-11-03
CN101071230A2007-11-14
CN103162169A2013-06-19
CN103591512A2014-02-19
CN103727467A2014-04-16
US20060146570A12006-07-06
Attorney, Agent or Firm:
MING & YUE INTELLECTUAL PROPERTY LAW FIRM (518054, CN)
深圳市铭粤知识产权代理有限公司 (518054, CN)
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