Liquid crystal device with phase retarder having layered inorganic compound
US5430566A · kind A · utility
28Cited by
13References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1994 |
| Grant date | Jul 4, 1995 |
| Priority date | — |
| Expiry date | Jan 19, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/25
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal device with a compensator made of a layered inorganic compound sheet or film in which a refractive index in the plane and a refractive index in the thickness direction are different from each other. The layered inorganic compound may be smectite group minerals. The layered inorganic compound has a mean particle size of 500 nm or less. The phase retarder is employed in a liquid crystal device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.