Color filter array having a blue filter layer
US6770405B2 · kind B2 · utility
6Cited by
10References
7Claims
0Family size
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Key dates
| Filing date | Jun 29, 2001 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Jan 31, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/223
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A color filter array having a blue filter layer on a substrate wherein the blue filter layer comprises triallylmethane dye showing its absorption maximum at a wavelength within the range of from 550 to 650 nm; and has a transmittance at a wavelength of 450 nm of 70% or more and that at 650 nm of 5% or less is provided; and the color filter array shows excellent spectroscopic characteristics with respect to blue light and has a blue filter layer excellent in light fastness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.