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EP0432608A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Method of making colour filter array for liquid crystal display

Assignee: Eastman Kodak Co
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Filing: 1990-12-03
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Granted: —
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Expires: 2010-12-03
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Abstract

Abstract A process of preparing a color filter array element for use in making a color liquid crystal display device comprising: a) overlaying a dye-receiving element with a dye-donor element, the dye-receiving element comprising a dimensionally-stable temporary support having thereon, in order, a polymeric alignment layer, a transparent conducting layer and a dye-receiving layer; b) imagewise heating the dye-donor element to transfer a dye image in a repeating mosaic pattern to the dye-receiving layer; c) removing the dye-donor element from contact with the dye-receiving element; d) laminating a transparent permanent support to the dye-receiving layer containing the dye image in a repeating mosaic pattern; and e) removing the temporary support to expose one surface of the polymeric alignment layer, thereby forming the color filter array element.

Inventors

  • 👤 Charles David C/O Eastman Kodak Comp. Deboer
  • 👤 Richard Thomas C/O Eastman Kodak Comp. Klingbiel

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-24 11:04
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/382; B41M5/38257; B41M5/265; B41M7/00; B41M7/0027; G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133509; G02F1/133514; G02F1/133516; C; C09; C09K; C09K2323/00; C09K2323/03; C09K2323/031; Y; Y10; Y10S; Y10S359/00; Y10S359/90; Y10S428/00; Y10S428/913; Y10S428/914; Y10S430/00; Y10S430/146

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 125 words
A process of preparing a color filter array element for use in making a color liquid crystal display device comprising: a) overlaying a dye-receiving element with a dye-donor element, said dye-receiving element comprising a dimensionally-stable temporary support having thereon, in order, a polymeric alignment layer, a transparent conducting layer and a dye-receiving layer; b) imagewise heating said dye-donor element to transfer a dye image in a repeating mosaic pattern to said dye-receiving layer; c) removing said dye-donor element from contact with said dye-receiving element; d) laminating a transparent permanent support to said dye-receiving layer containing said dye image in a repeating mosaic pattern; and e) removing said temporary support to expose one surface of said polymeric alignment layer, thereby forming said color filter array element.
Claim 2
Dependent Claim 15 words
The process of Claim 1 characterized in that said temporary support is a polymeric material.
Claim 3
Dependent Claim 15 words
The process of Claim 2 characterized in that said polymeric material is a polymeric diimide.
Claim 4
Dependent Claim 16 words
The process of Claim 1 characterized in that said transparent conducting layer is indium tin oxide.
Claim 5
Dependent Claim 15 words
The process of Claim 1 characterized in that said polymeric alignment layer is a polyimide.
Claim 6
Dependent Claim 13 words
The process of Claim 1 characterized in that said permanent support is glass.
Claim 7
Dependent Claim 36 words
The process of Claim 1 characterized in that said imagewise-heating is done by means of a laser using a dye-donor element comprising a support having thereon a dye layer and an absorbing material for the laser.
Claim 8
Dependent Claim 21 words
The process of Claim 1 characterized in that said pattern consists of a set of red, green and blue additive primaries.
Claim 9
Dependent Claim 21 words
The process of Claim 8 characterized in that each said primary color is separated from each other by an opaque area.
Claim 10
Dependent Claim 15 words
The process of Claim 9 characterized in that said opaque areas form a black grid.

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