Liquid crystal device, display apparatus using same and display method using same
US5812227A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 1993 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Apr 1, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13345
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The liquid crystal device is constituted by disposing a display layer between a pair of electrode plates. The display layer comprises a porous polymer material having open pores partially filled and a low-molecular weight mesomorphic compound impregnating the porous polymer material. The display layer is free from an unfilled portion of the low-molecular weight mesomorphic compound to be effective for providing a liquid crystal device showing a high transmittance and a good contrast. The display layer also comprises a three dimensional network structure coated with a polymer layer, and a low-molecular weight mesomorphic compound impregnating the three-dimensional network structure. The display layer is free from a fibrous part which is unstable against an applied voltage to be effective for providing a liquid crystal device showing no hysteresis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.