Method for photographically producing multi-color filter arrays for use in LCD
US5645962A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1996 |
| Grant date | Jul 8, 1997 |
| Priority date | — |
| Expiry date | Jan 19, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/4136
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method is provided for manufacturing a multicolor filter array element, firmly associated with a transparent electrode layer in a multicolor liquid crystal display device, comprising the steps of: PA0 (i) exposing a silver halide color photographic (print) material comprising a plurality of differently spectrally sensitive silver halide emulsion layers on a glass support, with a single step multicolor pixelwise exposure, PA0 (ii) color processing said exposed print material producing thereby in each silver halide emulsion layer a differently colored pixel pattern, PA0 (iii) coating said color processed print material at its silver halide emulsion layer assemblage side with a hydrophobic water-impermeable organic resin layer PA0 (iv) curing said organic resin layer by heating said layer at temperatures between 100.degree. C. and 250.degree. C. and PA0 (v) depositing an transparent electrode layer on said organic resin layer, characterized in that in the color processing a developer solution is used comprising a N,N-disubstituted p-phenylene diamine derivative in which the disubstituted amine group carries a --CHR.sup.1 R.sup.2 group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.