Radiation-sensitive colored compositions, cured colored films, color filters, processes for forming colored patterns, processes for preparing color filters, solid-state image sensors and liquid crystal display devices
US10216083B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2015 |
| Grant date | Feb 26, 2019 |
| Priority date | — |
| Expiry date | Jul 3, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/32
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Herein provided are radiation-sensitive colored compositions suppressing a phenomenon in which a radiation-sensitive colored composition of another color penetrates into previously formed pixels to result in a decrease in the color purity of the previously obtained pixels; cured colored films and color filters using them; processes for forming colored patterns; processes for preparing the color filters; solid-state image sensors; and image display devices.The radiation-sensitive colored compositions comprise a dyestuff, a photopolymerizable compound, a photoinitiator, and a nonionic surfactant containing a partial structure represented by formula (1) or (2) below and having a weight average molecular weight of 2500 or less and an HLB value of 9.2 to 15.5 as determined by Griffin's method. In formula (1) and (2), R1 and R2 each independently represent a hydrocarbon group containing 8 or more carbon atoms, and n1 and n2 each independently represent 4 to 25.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.