Liquid crystal element stabilized by the use of polymer reticulate structure, and manufacturing method thereof
US6108061A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Mar 14, 1997 |
| Grant date | Aug 22, 2000 |
| Priority date | — |
| Expiry date | Mar 14, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/30
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Monomers with photopolymerization characteristics and an initiator for polymerization are added to a liquid crystal composition having a ferroelectric liquid crystal phase (S5). In a state (S6) where coexist two domains which differ from each other in directions of molecular major axes in the ferroelectric liquid crystal phase, light is projected to the liquid crystal layer to form a polymer reticulate structure therein (S7). As a result, this state is made a stable one and the liquid crystal shows macroscopic switching behaviors among two states causing dark and bright displays respectively, and the above-described state causing halftone display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.