Liquid crystal display apparatus and fingerprint identification method for liquid crystal display apparatus
US11281039B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 9, 2020 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Jun 9, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/11
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A liquid crystal display apparatus is disclosed. The liquid crystal display apparatus includes: a liquid crystal display panel; an infrared transmitting reflector plate configured to transmit an infrared light and reflect a visible light; an infrared source configured to emit an infrared light which is to be transmitted through the infrared transmitting reflector plate and the liquid crystal display panel to a fingerprint to be identified on a light exit side of the liquid crystal display panel; and a fingerprint identification module disposed on the side of the infrared transmitting reflector plate facing away from the liquid crystal display panel, and configured to receive a part of the infrared light emitted by the infrared source. The part of the infrared light being reflected by the fingerprint to reach the fingerprint identification module through the liquid crystal display panel and the infrared transmitting reflector plate for performing a fingerprint identification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.