Light transmissive substrate, method of making transmissive substrate, surface light source unit, polarizing plate, and liquid crystal device
US8896802B2 · kind B2 · utility
16Cited by
0References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 24, 2010 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | Jul 26, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133607
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A surface light source unit includes, in the following order: a light source; a light collecting sheet having light collection portions on at least one side of the light collecting sheet; and a light transmissive substrate having a flat portion and recesses on at least one side of the light transmissive substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.