Method of making a color filter array element
US5576267A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 1996 |
| Grant date | Nov 19, 1996 |
| Priority date | — |
| Expiry date | Apr 16, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31507
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of preparing a color filter array element comprising the following steps: PA1 a) coating a glass support with a polymeric dye image-receiving layer; PA1 b) coating the polymeric dye image-receiving layer with at least one additive primary color dye from a solvent that does not swell or penetrate the polymeric dye image-receiving layer; PA1 c) placing a stencil mask of a desired pixel shape in intimate contact with the surface of the polymeric dye image-receiving layer; PA1 d) fusing the dye into the polymeric dye image-receiving layer by heating or by using a solvent vapor treatment using a solvent which will swell or penetrate the dye image-receiving layer; PA1 e) removing the stencil mask; PA1 f) removing all unfused dye with a solvent wash; and PA1 g) repeating steps b) to f) twice using different additive primary color dyes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.