Liquid crystal display device with pixel registration illumination
US5377027A · kind A · utility
15Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 1992 |
| Grant date | Dec 27, 1994 |
| Priority date | — |
| Expiry date | Oct 2, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133615
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A liquid crystal display device, (10 in FIG. 1) comprises a liquid crystal panel (12) and a backside illuminator (14). The liquid crystal includes pixels (36) separated by a matrix area (37). The backside illuminator comprises a waveguide (40) having a face (44) facing the backside (18) of the liquid crystal panel and including light-emitting sites (48) disposed in registration with the pixels and separated by non-emitting surface (46). During operation, light received from a suitable source (52, 54, 56) is transmitted within the waveguide to the sites and emitted to illuminate the corresponding pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.