Organic pigment composition for color filters, method for producing same, and color filter
US10247863B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2016 |
| Grant date | Apr 2, 2019 |
| Priority date | — |
| Expiry date | Apr 5, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided is an organic pigment composition for color filters, which can be used preferably for a color filter that allows to produce a liquid crystal display device which has excellent heat resistance, a brighter display screen, and accordingly higher brightness; a method for producing the same; and a color filter which includes the organic pigment composition for color filters. The color filter has higher heat resistance by using the organic pigment composition for color filters which includes a phthalocyanine pigment and a pigment derivative in which the ratio of a multi-substituted phthalimide alkyl group to the whole amount of the pigment derivative is limited.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.