Patent ID: 9097939
Filing Date: 2015-08-04
Classification: B32B,C08G,C09K,G02F

Abstract:
1. A liquid crystal display device, comprising: a pair of substrates at least one of which is transparent; a liquid crystal layer disposed between the pair of substrates; an electrode group formed to one substrate of the pair of substrates, for applying an electric field to the liquid crystal layer, the electric field having a component parallel to the one substrate; a plurality of active elements connected to the electrode group; and a liquid crystal alignment film disposed to at least one substrate of the pair of substrates, wherein the liquid crystal alignment film, which is formed by a photo-alignment process, contains polyimide formed using at least one kind of tetracarboxylic acid dianhydride selected from a compound group A represented by the following Chemical Formulae (1) to (5): where R