Light guide unit, illuminating device and liquid crystal display device
US8174642B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2008 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | May 12, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133615
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a light guide unit (40) of the present invention, a light source (22) is provided on a first end section (24d) of a light guide (24). Further, a side reflective member (26b), which can reflect light in the light guide (24), is provided on a second end section (24e) opposite to the first end section (24d) which is provided with the light source (22). The light guide (24) is continuously increased in thickness (D2, D4, and D5) (i) from the first end section (24d) provided with the light source (22) toward a center of the light guide (24) and (ii) also from the second end section (24e) provided with the side face reflective member (26b) toward the center of the light guide (24).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.