Illumination device and liquid crystal display device
US7973880B2 · kind B2 · utility
4Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2006 |
| Grant date | Jul 5, 2011 |
| Priority date | — |
| Expiry date | Dec 3, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0055
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A transparent substrate 2, into which light from a light source 9 is introduced through at least one side, includes a transparent first glass substrate (substrate body) 5a and a low refractive index layer 6 that is disposed on the first glass substrate 5a and has a lower refractive index than the first glass substrate 5a. Moreover, a high refractive index layer 7 having a higher refractive index than the low refractive index layer 6 is disposed on the low refractive index layer 6, thereby preventing the generation of light that leaks from the first glass substrate 5a to the outside through the low refractive index layer 6.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.