Process for producing color filter
US5185074A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1991 |
| Grant date | Feb 9, 1993 |
| Priority date | — |
| Expiry date | Jan 30, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133516
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process for producing color filters, which comprises dispersing or dissolving pigments and the like having spectral properties in three primary colors, and a structure reinforcing resin in an aqueous medium, in the presence of a surfactant comprising a ferrocene compound, to prepare micelle solutions of dispersions in each color, and dipping the patterned electroconductive transparent substrate to be subjected to electrolytic treatment in each color, and thus forming a color-separated filter on the substrate. The color filter produced according to the above process can be utilized for display elements of filters, such as liquid crystal display devices, electrochromic display devices, latitude display devices, plasma display panels, spectroscopic devices, solid-state photographic devices and dimmers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.