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Title:
LOW-COST BACKLIGHT MODULE AND DISPLAY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/127784
Kind Code:
A1
Abstract:
A low-cost backlight module (2) and a display apparatus. The backlight module (2) comprises multiple light source components (10) arranged in an array, reflective pieces (20) arranged near each light source component (10), and a diffusion plate (30). The reflective pieces (20) comprises a circle of side reflective wall (21) circularly arranged around the light source components (10); each light source component (10) comprises a spot light source (11) arranged at intervals circumferentially to face towards the side reflective wall (21); the diffusion plate (30) and the light source components (10) are arranged in a spaced manner; light emitted by the spot light source (11) towards the side reflective wall (21) is reflected by the side reflective wall (21) and exits through the diffusion plate (30). A reflective piece (20) having an oblique reflective face is arranged around each spot light source (11); multiple spot light sources (11) are integrated in the middle of the same reflective piece (20) and share the same reflective piece (20); light rays emitted by each spot light source (11) are mostly reflected by the reflective pieces (20) and are emergent to the diffusion plate (30) at the top so as to exit. As such, the average area of the diffusion plate (30) that can be covered by each spot light source (11) is larger, and the light rays are more uniform; the number of spot light sources (11) is reduced, and the LED mura problem can also be avoided.

Inventors:
FU LINLIN (CN)
Application Number:
CN2018/073987
Publication Date:
July 04, 2019
Filing Date:
January 24, 2018
Export Citation:
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Assignee:
HUIZHOU CHINA STAR OPTOELECTRONICS TECH CO LTD (516000, CN)
International Classes:
G02F1/13357; F21S8/00; F21V7/22
Domestic Patent References:
WO2013088594A12013-06-20
Foreign References:
CN201706328U2011-01-12
CN203286495U2013-11-13
CN102112801A2011-06-29
JP2007157354A2007-06-21
CN101211054A2008-07-02
CN103047578A2013-04-17
CN105204107A2015-12-30
CN103712127A2014-04-09
CN201973601U2011-09-14
Attorney, Agent or Firm:
MING & YUE INTELLECTUAL PROPERTY LAW FIRM (518066, CN)
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