Optical sheet assembly and backlight unit comprising same
US10132984B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2015 |
| Grant date | Nov 20, 2018 |
| Priority date | — |
| Expiry date | Jun 10, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133607
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is an optical sheet assembly comprising: a first optical sheet which comprises a first base film and a first optical pattern formed on the first base film, light being incident on the first base film; a second optical sheet which comprises a second base film and a second optical pattern formed on the second base film, the light exiting from the first optical sheet being incident thereon; and a third optical sheet which comprises a third base film and a third optical pattern formed on the third base film, the light exiting from the second optical sheet being incident thereon, wherein the first to third optical patterns perform light condensing or diffusing function, the first optical sheet is joined with the second optical sheet, and the second optical sheet is joined with the third optical sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.