Title:
TOUCH DISPLAY PANEL, FINGERPRINT RECOGNITION DEVICE, AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/015668
Kind Code:
A1
Abstract:
A touch display panel, a fingerprint recognition device, and a display device. The touch display panel comprises: a waveguide plate (001) and a lower substrate (003) which are disposed opposite each other; a liquid crystal layer (004) and an electrode structure (005) disposed between the waveguide plate (001) and the lower substrate (003); a reflective layer (006) disposed on one side, facing the liquid crystal layer (004), of the lower substrate (003); and a plurality of photosensitive units (007) disposed on one side, facing the liquid crystal layer (004), of the lower substrate (003) or on one side, facing the liquid crystal layer (004), of the waveguide plate (001), wherein the electrode structure (005) is configured to control the refractive index of liquid crystal molecules in the liquid crystal layer (004), so that light is emitted from a lower surface (001A), near the liquid crystal layer (004), of the waveguide plate (001) or is totally reflected inside the waveguide plate (001), thereby implementing an optical touch recognition technique.
Inventors:
TAN JIFENG (CN)
Application Number:
PCT/CN2018/096438
Publication Date:
January 24, 2019
Filing Date:
July 20, 2018
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
International Classes:
G02F1/1333; G02F1/1335; G02F1/1343
Foreign References:
| CN107238961A | 2017-10-10 | |||
| CN106773229A | 2017-05-31 | |||
| CN106291943A | 2017-01-04 | |||
| CN104020896A | 2014-09-03 | |||
| CN205983428U | 2017-02-22 | |||
| CN106934384A | 2017-07-07 |
Attorney, Agent or Firm:
LIU, SHEN & ASSOCIATES (CN)
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