Optical compensatory sheet comprising substrate and optically anisotropic layer
US6485798B1 · kind B1 · utility
12Cited by
12References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2000 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | Feb 24, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2323/05
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An optical compensatory sheet comprises a transparent substrate and an optically anisotropic layer. The optically anisotropic layer comprises discotic liquid crystal molecules. The discotic liquid crystal molecules are oriented in essentially mono domain alignment at an average inclined angle in the range of 50° to 90°. A liquid crystal display of an STN mode having the optical compensatory sheet is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.