Display device having a mesomorphic diffraction grating layer adjacent a polymer dispersed layer
US5473448A · kind A · utility
34Cited by
16References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1995 |
| Grant date | Dec 5, 1995 |
| Priority date | — |
| Expiry date | Mar 21, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/305
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display device is constituted by disposing a first display layer and a second display layer between a pair of electrode plates including at least one transparent electrode plate. The first display layer contains a low-molecular weight mesomorphic compound dispersed in or impregnating a polymer matrix. The second display layer is formed by disposing a diffraction grating and being filled with the low-molecular weight mesomorphic compound. The display device is incorporated in a display apparatus to effect a good display with a high contrast ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.