Title:
QUANTUM DOT BACKLIGHT MODULE AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/258767
Kind Code:
A1
Abstract:
A quantum dot backlight module for in-display fingerprint recognition of an LCD, comprising a light source (221), a light guide plate (220) provided at one side of the light source (221), a reflection sheet (210) provided below the light guide plate (220), a quantum dot composite film (230) provided above the light guide plate (220), and a fingerprint recognition apparatus (103) provided below the quantum dot composite film (230) for recognizing biological fingerprint optical signals. The quantum dot composite film (230) contains first quantum dots and second quantum dots. By means of the quantum dot backlight module, the LCD module enables fingerprint recognition signals to effectively penetrate the LCD module and to be accurately collected, realizing an in-display fingerprint recognition function of an LCD display device.
Inventors:
ZHANG XIAOQI (CN)
LU ZHIJIAN (CN)
CAI FENGYI (CN)
LU ZHIJIAN (CN)
CAI FENGYI (CN)
Application Number:
PCT/CN2019/126120
Publication Date:
December 30, 2020
Filing Date:
December 18, 2019
Export Citation:
Assignee:
SHENZHEN LONGLI TECH CO LTD (CN)
International Classes:
G02F1/13357; G06K9/00
Foreign References:
| CN110308587A | 2019-10-08 | |||
| CN109919103A | 2019-06-21 | |||
| CN109902649A | 2019-06-18 | |||
| CN109902664A | 2019-06-18 | |||
| CN103869391A | 2014-06-18 | |||
| US20160266695A1 | 2016-09-15 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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