Title:
BACKLIGHT MODULE, ELECTRONIC DEVICE, AND LIGHT BAR
Document Type and Number:
WIPO Patent Application WO/2021/135752
Kind Code:
A1
Abstract:
Embodiments of the present application relate to the technical field of display, and provide a backlight module, an electronic device, and a light bar, for reducing the proportion of a light ray having a relatively high light ray damage index in a backlight source. The backlight module comprises a backlight source and a plurality of light emitting assemblies in the backlight source. Each light emitting assembly comprises a first light emitting device and a second light emitting device. The first light emitting device comprises a first light emitting chip and a fluorescent layer coated on a light exit side of the first light emitting chip. The first light emitting chip is used for emitting first blue light. The first blue light is adapted to be mixed with a light ray emitted by the fluorescent layer due to excitation of the first blue light to form a first light ray. In addition, the second light emitting device is used for emitting second blue light. The second blue light is adapted to be mixed with the first light ray to form white light. In this case, the peak wavelength of the second blue light is higher than that of the first blue light.
Inventors:
XIONG CHONG (CN)
YU CHUNYI (CN)
DUAN BAO (CN)
YU CHUNYI (CN)
DUAN BAO (CN)
Application Number:
PCT/CN2020/131897
Publication Date:
July 08, 2021
Filing Date:
November 26, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G02F1/13357
Foreign References:
| CN212160290U | 2020-12-15 | |||
| CN107167962A | 2017-09-15 | |||
| CN108613022A | 2018-10-02 | |||
| CN107966859A | 2018-04-27 | |||
| CN110970409A | 2020-04-07 | |||
| CN107422527A | 2017-12-01 | |||
| US20070091599A1 | 2007-04-26 |
Attorney, Agent or Firm:
BEIJING ZBSD PATENT&TRADEMARK AGENT LTD. (CN)
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