Method for manufacturing lighting device, image display, liquid crystal monitor, liquid crystal television, liquid crystal information terminal, and light guide plate
US7525531B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2001 |
| Grant date | Apr 28, 2009 |
| Priority date | — |
| Expiry date | Dec 12, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0061
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention is directed to provide, for example, a lighting device and an image display, with which higher luminance and others can be achieved. In order to achieve this object, an image display of the present invention is formed in a lighting device (100) including a light source (102), a light guiding plate (103) that is disposed in such a manner that the light from the light source (102) is allowed to enter it through an end face (103a) thereof, and a reflecting surface (105) that is opposed to one major surface (103c) of the light guiding plate (103), wherein the one major surface (103c) of the light guiding plate (103) has a constant scattering layer (121) formed thereon which is adapted to transmit the incident light to scatter it at a predetermined rate, and the constant scattering layer (121) has a distribution and scattering structure (114) formed there on which is adapted to transmit the incident light to scatter it at a percentage that varies according to the distance from the above-mentioned light source (102).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.