Method of manufacturing a color display device and a color display device
AssigneeKoninklijke Philips Electronics N.V.
InventorsArie R. Van Doorn, Godefridus P. Van Melis
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Abstract
A display device comprises a color filter pattern between a phosphor pattern and a display window. For blue, the thickness (t2) of this color filter pattern is more than 2.5 micrometer, preferably 5-7 micrometer, and/or for red said thickness is 0.25-1.5 micrometer. The red and/or blue color filter patterns are provided by means of a non-linear photoresist. This enables an improved contrast (LCP) to be achieved.
Claims5
A method of manufacturing a display device comprising a display window, a phosphor pattern and a color filter pattern between said display window and said phosphor pattern, the color filter pattern being provided by means of an illumination process, characterized in that a color filter pattern is provided by means of a negative lithography process in which a non-linear photoresist is used.
Dependencies are inferred from the claim text.