Guest-host liquid crystal element with removable polarizer
US7057683B2 · kind B2 · utility
14Cited by
9References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2004 |
| Grant date | Jun 6, 2006 |
| Priority date | — |
| Expiry date | Sep 21, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13306
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A light control device and an imaging device suitable for the effective and stabilized driving of a Guest-Host type liquid crystal element. A light control device which is provided with a light controlling GH cell and a UV cut filter provided on the light incident side of the GH cell and which is therefore reduced significantly in the quantity of ultraviolet ray applied to the GH cell, thereby preventing the photodecomposition or photodegradation of materials constituting a liquid crystal layer in the GH cell; and an imaging device such as a CCD camera having this light control device disposed on the optical path thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.