Liquid crystalline optical device operable at a low drive voltage
US5674576A · kind A · utility
19Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1995 |
| Grant date | Oct 7, 1997 |
| Priority date | — |
| Expiry date | Sep 12, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24917
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
In a liquid crystalline optical device, a light modulating layer composed of a liquid crystal and a high polymer resin is sandwiched between two substrates having electrode layers, at least one of the substrates being transparent. The polymer is a compound which is obtained by photopolymerization of a prepolymer containing a (meth)acryloyl compound having a stilbene skeleton, or a (meth)acryloyl compound including dioxane group or dioxolane group. The liquid crystalline optical device can be driven with a lower applied voltage and exhibits a reduced hysteresis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.