Ferroelectric liquid crystal element with particular alignment film and a method for manufacturing the same
US4759614A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1986 |
| Grant date | Jul 26, 1988 |
| Priority date | — |
| Expiry date | Jul 10, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2323/05
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The element comprises a pair of transparent substrates, a pair of light-transmitting electrodes each provided on the respective substrates, a ferroelectric liquid crystal layer disposed between the pair of substrates and orientation control films for the molecules of the ferroelectric liquid crystal provided between the electrodes and the ferroelectric liquid crystal layer. The orientation control film controls a tile angle of a biphenyle series nematic liquid crystal having biphenyl ring system below 1.5.degree. and causes a uniform molecule orientation characteristic and a memory property for the ferroelectric liquid crystal element of smectic C* liquid crystal and having a liquid crystal layer thickness of even more than 4 .mu.m.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.