Display panel and terminal device for forming structured light
US10921632B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 6, 2019 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Jul 4, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/22
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display panel includes: a backlight module configured to generate a visible light; a display module including an array substrate formed on the backlight module, a color filter substrate opposite to the array substrate, and a first liquid crystal layer between the array substrate and the color filter substrate. The color filter substrate includes a plurality of color resist blocks and a black matrix between adjacent color resist blocks, the black matrix having a first layer and a second layer on a side of the first layer facing the array substrate. The second layer is configured to generate an invisible light under excitation of the visible light, and the first layer is configured to block transmission of the visible light and to allow transmission of the invisible light. A light collimating structure is positioned on a side of the color filter substrate away from the array substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.