LCD with integral light confinement having a pair of afocal lenslets positioned between liquid crystal cells and color polarizers
US5574580A · kind A · utility
56Cited by
12References
10Claims
0Family size
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Key dates
| Filing date | Dec 12, 1995 |
| Grant date | Nov 12, 1996 |
| Priority date | — |
| Expiry date | Dec 12, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1362
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Telecentric afocal microlens combinations are inserted between the liquid crystal cells of an active matrix liquid crystal subtractive color display to retain light within a projection of each liquid crystal pixel as the light propagates through the system. A resulting reduction in light losses at the edge of each pixel significantly improves the output brightness and resolution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.