Display device having polarized light source
US9494821B2 · kind B2 · utility
1Cited by
16References
8Claims
0Family size
Inventors
Key dates
| Filing date | Jul 26, 2011 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Nov 2, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F19/22
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device includes a reflective base member, a first light polarizing film disposed on the surface of the base member, a light source, a second light polarizing medium receiving light from the light source and emitting polarized light towards the first light polarizing film, a birefringence medium positioned between the second light polarizing medium and the first light polarizing film, and means for changing the direction of polarization of the second light polarizing means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.