Development and Industrialization of LCD Color Filters By Electrodeposition Method

Abstract

Shinto Paint Co., Ltd. (SPC) has developed and successfully industrialized a manufacturing method of LCD color filters which are now remarkably growing.
With an electrodeposition technology having b een accumulated for more than 30 years in the industrial coating field and additionally with a pigment dispersion technology, we have developed a technique for forming excellently transparent color thin films of Red, Green and Blue (R, G, B), three primary colors of light on transparent electrodes of ITO films patterned on glass plate.
Furthermore, we have invented an original technique for forming black matrix by the back-exposure system.
For industrialization, we have established a manufacturing method which meets a mass production process and shows an excellence in simplicity and safety, based on above-mentioned two technologies.