Liquid crystal device having a stretched porous polymer film impregnated with a low molecular weight mesomorphic compound
US5475515A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 1994 |
| Grant date | Dec 12, 1995 |
| Priority date | — |
| Expiry date | Apr 25, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1347
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The liquid crystal device is constituted by disposing a display layer between a pair of electrode plates. The display layer comprises a stretched porous polymer film having open pores and a low-molecular weight mesomorphic compound impregnating the polymer film. The display layer further comprises a porous polymer film having a three dimensional network structure characterized by a fibril diameter of at most 0.3 micron, and a low-molecular weight mesomorphic compound impregnating the polymer film. The display layer still further comprises a first display layer comprising a porous film and a low-molecular weight mesomorphic compound impregnating the porous film, and a second display layer comprising the low-molecular weight mesomorphic compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.