Brightness-enhancing light guiding plate and liquid crystal display device using the same
US6685329B2 · kind B2 · utility
5Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2002 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | Apr 3, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0086
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed are a brightness-enhancing light guiding plate and an LCD using the same, in which a brightness enhancing recess portion for improving an optical distribution, changing a light path and enhancing brightness is formed at a surface by which light is reflected. The brightness enhancing recess portion has a reflection recess surface having a maximum surface area and a non-reflection recess surface having a minimum surface area, thereby improving the brightness, changing the light path and improving the optical distribution and thus improving a displaying performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.