Dimensions of spacer particles for a ferroelectric liquid crystal display
US4712875A · kind A · utility
41Cited by
3References
11Claims
0Family size
Assignee
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Key dates
| Filing date | May 14, 1986 |
| Grant date | Dec 15, 1987 |
| Priority date | — |
| Expiry date | May 14, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/141
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal device comprising a pair of base plates and a ferroelectric chiral smectic liquid crystal disposed between the base plates. The pair of base plates being secured to each other to leave a spacing which is small enough to release the spiral structure of the ferroelectric chiral smectic liquid crystal due to the wall effect of the base plates. Fibrous spacers having a diameter d (.mu.m) and an average length l satisfying the relationship of 3.ltoreq.l/d.ltoreq.100 are disposed together with the ferroelectric chiral smectic liquid crystal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.