Colored composition, method of producing color filter using the same, color filter and solid-state imaging device
US9664827B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2014 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Jul 28, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B3/0006
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention is directed to a colored composition for forming a green color filter, containing a color pigment, wherein a content of the color pigment to a total solid content of the colored composition is 60% by weight or more, and a layer having a thickness of 0.6 μm formed from the colored composition has light transmittance of 80% or more at a wavelength of 550 nm and light transmittance of 50% or less at a wavelength of 450 nm, and a method of producing a color filter including (A) forming a first colored layer containing a first colored composition and (B) patterning with dry etching so as to from a through-hole group in the first colored layer, wherein the first colored composition is the colored composition as defined herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.