Backlight device and liquid crystal display device
US6504589B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 17, 1998 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Feb 17, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0055
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A backlight device including a light source for emitting light, a light guide for receiving the light from the light source and for emitting directional light having a maximum intensity in a first predetermined direction, a polarization light splitter having a planar, multi-layer structure; and a beam deflector, disposed between the light guide and the polarization light splitter, for deflecting the light from the light guide towards the polarization light splitter in a second predetermined direction substantially coinciding with a direction in which the polarization light splitter has a maximum polarization light splitting effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.