MATERIAL FOR PHOTO-ALIGNMENT LAYER, PHOTO-ALIGNMENT LAYER AND METHOD OF MANUFACTURING THE SAME

The present invention provides a photo-alignment layer for a liquid crystal display device, which has good liquid crystal display device characteristics such as a good voltage holding ratio and also has good alignment stability and sufficient resistance to light and heat. The photo-alignment layer i...

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Bibliographic Details
Main Authors FUKUDA, MASANOBU, HAYAKAWA, HITOSHI, TAKADA, HIROKAZU
Format Patent
LanguageEnglish
French
Published 13.03.2007
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Summary:The present invention provides a photo-alignment layer for a liquid crystal display device, which has good liquid crystal display device characteristics such as a good voltage holding ratio and also has good alignment stability and sufficient resistance to light and heat. The photo-alignment layer is manufactured by coating a polymerizable monomer having at least one photo-alignment moiety, which carries out a photo-alignment function by the photo dimerization reaction, and at least two polymerizable maleimide groups per molecule on a substrate, and exposing the coating layer to light to cause the photo dimerization reaction of the structural unit and the photopolymerization reaction of the polymerizable maleimide group, thereby to form a crosslinked polymeric layer and to enable the polymeric layer to carry out the photo- alignment function.
Bibliography:Application Number: CA20012356029