Frontlit display
US6592234B2 · kind B2 · utility
61Cited by
34References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2001 |
| Grant date | Jul 15, 2003 |
| Priority date | — |
| Expiry date | Apr 16, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0038
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An illuminated frontlit display includes a front light guide having at least one light input face that supplies light to the guide, a viewing face, and a light output face opposite the viewing face, the light output face having a light extraction layer thereon, the extraction layer having a substantially flat light exit face and containing buried reflective facets that extract supplied light from the guide through the light exit face to a reflective light valve and back through the viewing face of the guide to a viewer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.