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Patent Searching and Data


Title:
DISPLAY BACKLIGHT UNIT
Document Type and Number:
WIPO Patent Application WO/2018/190442
Kind Code:
A1
Abstract:
The present invention relates to a backlight unit having a novel structure enabling local dimming of a mobile device display, the backlight unit comprising, in addition to a conventional display backlight unit including a diffuser, a prism, a light guide plate, a light source, and a reflector, a plurality of light guide plates obtained by dividing and arranging the light guide plate on a plane and a plurality of light guide plate units configured so as to make a light source (in particular, LED) correspond to each divided light guide plate. In addition, a uniformity enhancement film for removing a hot spot of light generated by the discontinuous arrangement of the respective light guide plate units so as to enhance uniformity of light emitted from the light guide plate units can be additionally included on the plurality of light guide plate units.

Inventors:
SEO HYUN BAE (KR)
Application Number:
PCT/KR2017/003910
Publication Date:
October 18, 2018
Filing Date:
April 11, 2017
Export Citation:
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Assignee:
ISSOFT (KR)
International Classes:
F21V8/00; G02F1/1335
Foreign References:
KR20120027592A2012-03-22
KR20050067903A2005-07-05
JP2010040246A2010-02-18
KR20100134904A2010-12-24
KR20090013987A2009-02-06
KR101728126B12017-04-19
Attorney, Agent or Firm:
JIMYUNG PATENT FIRM (KR)
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