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US 5,688,551 AGranted
Method of forming an organic electroluminescent display panel
AssigneeEastman Kodak Company
InventorsJon Eric Littman, Ching Wan Tang
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Abstract
A method of forming a multicolor organic electroluminescent display panel is disclosed. The method uses a close-spaced deposition technique to form a separately colored organic electroluminescent medium on a substrate by transferring, patternwise, the organic electroluminescent medium from a donor sheet to the substrate.
Claims7
A method of forming a full color organic electroluminescent display panel, comprising the steps of:
- (a) forming and patterning a transparent conductive layer to provide a plurality of spaced electrodes on a transparent substrate;
- (b) providing on the spaced electrodes, by close-spaced deposition from a donor sheet, blue, green, and red organic electroluminescent media to form adjacent colored subpixels which emit blue, green and red primary colors, respectively;
- (c) forming and patterning a conductive layer on the colored subpixels to provide a plurality of spaced electrodes;
- and
- (d) wherein the close-spaced deposition is provided by transferring to the transparent substrate each of the colored organic electroluminescent media by illuminating the respective donor sheet which is prepatterned with a light absorbing layer.
2 more elements
A method of forming a multicolor organic electroluminescent display panel, comprising the steps of:
- (a) forming and patterning a transparent conductive layer to provide a plurality of spaced electrodes on a transparent substrate;
- (b) providing on the spaced electrodes, by close-spaced deposition, separately colored organic electroluminescent media from dye donor sheets to form colored subpixels;
- (c) providing on each donor sheet having a particular color of organic electroluminescent medium, a prepatterned light absorbing layer to form colored subpixels;
- (d) forming and patterning a conductive layer on the colored subpixels to provide a plurality of spaced electrodes;
- and
- (e) wherein the close-spaced deposition is provided by transferring to the transparent substrate each of the colored organic electroluminescent media by illuminating the respective donor sheet which is prepatterned with a light absorbing layer.
3 more elements
Dependencies are inferred from the claim text.