Backlight structure and display device
US11221442B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 25, 2018 |
| Grant date | Jan 11, 2022 |
| Priority date | — |
| Expiry date | Jul 30, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133614
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A backlight structure is provided in embodiments of the disclosure, including: a base plate; a light guide plate, on a surface of the base plate at a side thereof and having a plurality of through-holes passing therethrough; a plurality of LED chips, on a surface of the base plate at the same side as the light guide plate, each of the plurality of LED chips being located in one-to-one correspondence within one of the plurality of through-holes of the light guide plate; a fluorescent powder filler filling the plurality of through-holes; a plurality of reflecting elements, on a first surface of the light guide plate facing away from the base plate, respectively, and covering the plurality of through-holes which open outwards at the first surface of the light guide plate, respectively; and a plurality of light extracting structures, on the first surface of the light guide plate, respectively, and configured to guide light to exit therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.