Color filter and color LCD apparatus having red filter with a peak wavelength between 685 nm and 690 nm and a red light source having a peak wavelength of between 640 nm and 645 nm
US7808585B2 · kind B2 · utility
7Cited by
15References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2005 |
| Grant date | Oct 5, 2010 |
| Priority date | — |
| Expiry date | Mar 18, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133624
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A color filter (19) used in a transmissive color liquid crystal display panel of a color liquid crystal display (LCD) apparatus. This color filter (19) is constituted by a tristimulus color filter for wavelength-selecting and transmitting red light, green light and blue light. Mixing of blue color and red color is prohibited by not having the transmission wavelength band of the red filter CFR overlaid substantially on the transmission wavelength band of the blue filter CFB.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.