Backlight unit and display device including the same
US11493679B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2020 |
| Grant date | Nov 8, 2022 |
| Priority date | — |
| Expiry date | Jan 18, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A backlight unit for a display device includes: a light guide including a light incident surface; a substrate facing the light incident surface; a plurality of light sources on one surface of the substrate facing the light incident surface; and a first member disposed between the substrate and the light incident surface to space the light sources apart from the light guide. The first member includes: a support on one surface of the substrate that do not include the light source, the support having a first surface facing the light incident surface and a second surface facing the light sources; and a first layer disposed on the first surface and the second surface of the support to improve luminance uniformity across the light incident surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.