Method and apparatus of liquid-crystal-on-silicon assembly
US7576815B2 · kind B2 · utility
0Cited by
31References
40Claims
0Family size
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Key dates
| Filing date | Jul 10, 2006 |
| Grant date | Aug 18, 2009 |
| Priority date | — |
| Expiry date | Nov 7, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1341
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A liquid-crystal-on-silicon device generates an image for projection onto a screen. The device includes a front plane, a back plane including a pixel driving circuit, and a wall that forms a chamber between the front and back planes for holding liquid crystal. Electrodes protrude into the chamber from the front plane, back plane, or both, in a predetermined pattern. The electrodes may be shaped as pillars and may serve as anodes or cathodes or both. When a voltage is applied to the electrodes, the liquid crystal assumes different polarization states at different pixel sites to form an image which may be projected onto a screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.