Positive orientations of liquid crystal molecules in a multi-domain liquid crystal display cell
US5576862A · kind A · utility
75Cited by
8References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1994 |
| Grant date | Nov 19, 1996 |
| Priority date | — |
| Expiry date | Jun 24, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133773
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal display cell comprising a pair of substrates, a liquid crystal material sandwiched between the pair of substrates, and an optical polarization memory film provided on one or both of the substrates. The optical polarization memory film is exposed by polarized lights to produce a positive orientation means including a multiple micro domains. In the micro domains, orientation direction is uniform in each domain and substantially isotropic as a whole. The visual angular dependency is eliminated. No rubbing treatment is done, and problems caused by rubbing can be solved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.