Title:
BACKLIGHT APPARATUS, DISPLAY APPARATUS, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/135868
Kind Code:
A1
Abstract:
A backlight apparatus (400), a display apparatus (200), and an electronic device (100). The back side of a hole (4101-1) of the backlight apparatus (400) distant from a light incident surface is provided with an outward protruding area (4121) having one or more protrusions; the outward protruding area (4121) can perform local condensation on light rays reflected from a side surface of a light guide plate (410). The rate of utilization of light is improved, the lighting effect of an area around the hole (4101-1) is improved, the brightness is enhanced, and the light emitting of the light guide plate (410) is uniform.
Inventors:
WANG ZHIZE (CN)
WANG PENG (CN)
LI RUILIANG (CN)
SU BINBIN (CN)
MA LEI (CN)
WANG PENG (CN)
LI RUILIANG (CN)
SU BINBIN (CN)
MA LEI (CN)
Application Number:
PCT/CN2020/134793
Publication Date:
July 08, 2021
Filing Date:
December 09, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G02B6/00
Foreign References:
| CN110031928A | 2019-07-19 | |||
| CN209215807U | 2019-08-06 | |||
| CN107861188A | 2018-03-30 | |||
| CN103293590A | 2013-09-11 | |||
| CN108427228A | 2018-08-21 | |||
| US8506151B2 | 2013-08-13 | |||
| CN201911393470A | 2019-12-30 |
Attorney, Agent or Firm:
LONGSUN LEAD IP LTD. (CN)
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