Integrated front light diffuser for reflective displays
US8300304B2 · kind B2 · utility
26Cited by
140References
58Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2009 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | Jan 20, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0051
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A reflective electronic display includes a front light assembly with a diffuser for enlarging the viewing cone of the display. The front light may include a substrate, a plurality of optical turning features, and a diffuser formed therebetween. The haze of the diffuser may be spatially non-uniform and switchable between two or more levels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.