Optical sheet and backlight unit having same
US10996500B2 · kind B2 · utility
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0References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2016 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Mar 24, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133607
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to an optical sheet having improved optical properties and minimized surface spots. According to one aspect of the present disclosure, provided is an optical sheet comprising: a first prism sheet which has a plurality of prisms parallel in a first direction formed on one surface thereof; and a diffusion sheet which is positioned at the surface side into which light of the first prism sheet is incident and has a plurality of protrusions formed on the surface facing the first prism sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.