Backlight unit and display apparatus comprising the same
US8675149B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2011 |
| Grant date | Mar 18, 2014 |
| Priority date | — |
| Expiry date | Feb 1, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133605
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A backlight unit is provided that comprises a first layer, a plurality of light sources on the first layer, a reflection layer on the first layer, the reflection layer surrounding the plurality of light sources, a second layer on the reflection layer and the plurality of light sources, and a third layer on the second layer, the third layer comprising a plurality of light shielding patterns arranged to correspond to the light sources, respectively, and a light transmitting region surrounding the plurality of light shielding patterns, wherein the light transmitting region includes first regions adjacent to the light sources and second regions away from the light sources, and wherein the first regions are smaller in area than the second regions. A display apparatus comprising the backlight unit is provided as well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.