Color filter array having a yellow filter layer
US6864022B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 29, 2001 |
| Grant date | Mar 8, 2005 |
| Priority date | — |
| Expiry date | Jan 9, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/201
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A color filter array having a yellow filter layer on a substrate wherein the yellow filter layer comprises a pyridone azo dye having its absorption maximum at a wavelength of 400 to 500 nm; and has a transmittance at a wavelength of 450 nm of 5% or less, that at 535 nm of 80% or more and that at 650 nm of 90% or more is provided; the color filter array shows excellent spectroscopic characteristics with respect to yellow light, is capable of forming a pattern with a short time exposure and has a yellow filter layer excellent in light fastness; and a photosensitive resin composition with which a pattern can be formed with a short time exposure is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.