Light control unit
US7292382B2 · kind B2 · utility
3Cited by
1References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2006 |
| Grant date | Nov 6, 2007 |
| Priority date | — |
| Expiry date | Feb 3, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2300/0857
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A light control unit comprises: a substrate; an insulating film; a first transistor; a reflecting film formed on the insulating film; a light modulating film formed on the reflecting film; a plurality of pairs of electrodes arranged two-dimensionally on the light modulating film; and a polarizing plate formed on a first electrode. Here, the light modulating film is made of a material that varies in refractive index in accordance with the intensity of an electric field applied thereto. For such a material, PLZT containing Pb, Zr, Ti, and La as constituent elements may be used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.