Polyvinyl alcohol/polymeric barrier overcoats on color filter arrays
US5158927A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 1992 |
| Grant date | Oct 27, 1992 |
| Priority date | — |
| Expiry date | Feb 19, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31928
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
This invention relates to a process of forming a color filter array element comprising: PA1 a) imagewise-heating a dye-donor element comprising a support having thereon a dye layer; PA1 b) transferring portions of the dye layer to a dye-receiving element comprising a support having thereon a polymeric dye image-receiving layer, the imagewise-heating being done in such a way as to produce a repeating pattern of colorants forming a color filter array, PA1 c) coating the color filter array with a polyvinyl alcohol layer; PA1 d) coating the polyvinyl alcohol layer with a polymeric barrier layer such as a dye image-receiving layer; and PA1 e) heating the color filter array to further diffuse the dye into the dye image-receiving layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.