Optical element covering member, backlight and liquid crystal display
US8339548B2 · kind B2 · utility
1Cited by
2References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2008 |
| Grant date | Dec 25, 2012 |
| Priority date | — |
| Expiry date | Aug 10, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0056
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical element covering member includes one or more optical elements, a support medium for supporting the one or more optical elements, and a covering member for covering the one or more optical elements and the support medium. At least one out of the one or more optical elements is a reflective polarizer, and the covering member has at least a region, through which the light inputted from a light source is emitted to a liquid crystal panel, the region having a phase difference lag of not more than 1/50 π of a measured wavelength, with respect to an optical axis of the reflective polarizer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.