TFT LCD with optical interference color filters

Details TFT LCD with optical interference color filters TFT LCD with optical interference color filters

1989-08-11

1991-10-22

Mille, Rolf

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 68, G02F 113

Patent

active

050589970

ABSTRACT:
The invention is an improvement in a liquid crystal display device of the type having spaced front and rear glass panels, a transparent electrode layer, and an array of individually addressable pel electrodes separated from the transparent electrode layer by a cavity filled with liquid crystal material. The improvement comprises a color filter layer in the form of a decal pattern. The decal pattern is formed using interference film techniques which form an inorganic color filter. The decal is placed on one of the glass panels using known decal transfer methods. The inorganic nature of the color filter layer and the decal transfer methods allow for enhanced optical density of the color liquid crystal display.

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