Optical mixing and shaping system for display backlights and displays incorporating the same
US8434887B2 · kind B2 · utility
11Cited by
5References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2010 |
| Grant date | May 7, 2013 |
| Priority date | — |
| Expiry date | Aug 23, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0238
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A backlight (42, 62) for a display (40, 60) comprises a plurality of independently controllable light sources (48) and inclined surfaces inclining in a radially outward direction from each light source for shaping the distribution of emitted light. The light sources (48) may each comprise a group of differently-colored light emitters. The backlight 842, 62) may include light integrators (64) configured to mix light of the differently-colored light emitters. Inclined surfaces (44) for shaping the distribution of emitted light may be arranged around exits of the light integrators (64).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.