Electro-optic color display including luminescent layer and interference filter
US4822144A · kind A · utility
73Cited by
3References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 17, 1987 |
| Grant date | Apr 18, 1989 |
| Priority date | — |
| Expiry date | Dec 17, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133617
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a color display device (LCD) (1) driven in the transmission mode and based on the combination of (LCD) switching elements and a phosphor pattern, the phosphor pattern being irradiated, for example by a UV source, the light output is considerably increased by arranging an interference filter between the radiation source and the phosphor layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.