Backlight module, display screen, and terminal
US10901263B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2020 |
| Grant date | Jan 26, 2021 |
| Priority date | — |
| Expiry date | Apr 24, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display screen, a terminal, and a backlight system, where the backlight system includes a substrate, a plurality of spot light sources, an optical conversion layer, and a light mixing member, where the spot light sources are fastened onto the substrate in a mutually spaced manner. The optical conversion layer is stacked on the substrate and covers the spot light sources. The optical conversion layer is configured to convert, into a white surface light source, light emitted by the spot light sources. The light mixing member is located on a surface of the optical conversion layer or embedded into the optical conversion layer. The light mixing member is configured to mix the light. The backlight system emits light evenly and has a relatively small thickness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.