Title:
BACKLIGHT SOURCE AND MANUFACTURING METHOD THEREFOR, DISPLAY APPARATUS, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/005322
Kind Code:
A1
Abstract:
A backlight source and a manufacturing method therefor, a display apparatus, and an electronic device, relating to the technical field of display, and used for solving the problem in the related art that the heat dissipation of a backlight source increases the power consumption of a display apparatus. The backlight source comprises a substrate (1), multiple light-emitting elements (2), and a thermoluminescent material layer (3); the multiple light-emitting elements (2) are disposed on one side of the substrate (1), and at least some of the light-emitting elements (2) can emit a primary-color light having a wavelength λ1; the thermoluminescent material layer (3) covers the side of the substrate on which the multiple light-emitting elements (2) are disposed, and is thermally conductively connected to the light-emitting elements (2); the thermoluminescent material layer (3) is configured to emit a primary-color light having a wavelength λ2 when heated; and λ1 and λ2 satisfy the condition that: |λ2-λ0|<|λ1-λ0|, wherein λ0 is a wavelength value, in a chromaticity diagram, corresponding to a point at the corner of the chromaticity diagram where the spectral locus of a primary-color light is located.
Inventors:
QIN WEIHUA (CN)
CHEN GUOHUI (CN)
CHEN GUOHUI (CN)
Application Number:
PCT/CN2022/091410
Publication Date:
February 02, 2023
Filing Date:
May 07, 2022
Export Citation:
Assignee:
HONOR DEVICE CO LTD (CN)
International Classes:
G02F1/13357
Domestic Patent References:
| WO2021135752A1 | 2021-07-08 |
Foreign References:
| CN113655658A | 2021-11-16 | |||
| CN101684914A | 2010-03-31 | |||
| CN108333833A | 2018-07-27 | |||
| US20120261703A1 | 2012-10-18 | |||
| US20100060143A1 | 2010-03-11 | |||
| CN107121837A | 2017-09-01 | |||
| CN104633499A | 2015-05-20 | |||
| CN105822935A | 2016-08-03 | |||
| CN112103394A | 2020-12-18 | |||
| CN108603103A | 2018-09-28 | |||
| CN110970409A | 2020-04-07 |
Attorney, Agent or Firm:
SHENZHEN ZHONGYI UNION INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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