Backlight and liquid crystal display device
US10996517B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 11, 2018 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Mar 11, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/30
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A backlight includes a plurality of light sources of at least three different colors disposed on a base substrate, and a plurality of grating units that are disposed on a light exit side of the plurality of light sources and are in one-to-one correspondence with the plurality of light sources. Each of the plurality of grating units is used for splitting light emitted by a corresponding one of the plurality of light sources to form in an array of uniformly distributed monochromatic spots, so that the backlight may form an array of colored spots in which at least three different colors of light spots are alternately arranged in sequence along a first direction, wherein the first direction is a row direction or a column direction of the array of colored spots.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.