Patent ID: 6803974
Filing Date: 2004-10-12
Classification: G02F

Abstract:
A liquid crystal display device comprising, in a liquid crystal side pixel region of one substrate of respective substrate as disposed to oppose each other with a layer of liquid crystal material interposed therebetween, a gate signal line made of a metal, a drain signal line made of a metal being formed over the metallic gate signal line with a dielectric film sandwiched therebetween, a thin-film transistor as driven by a scan signal from said metallic gate signal line, a pixel electrode to which an image signal from said metallic dram signal line is supplied via this thin-film transistor; a protective film formed to also cover said thin-film transistor, said metallic drain electrode and said pixel electrode; and a resin film formed on or over an upper surface of this protective film, whereina counter electrode for generation of an electric field between it and said pixel electrode and a counter voltage signal line made of a metal for supplying a counter voltage thereto are formed on the one substrate side with the metallic counter voltage signal line being formed at the same level as the scan signal line, and at least in a display region being an ensemble of said pixel regions, at least three layers of said protective film, resin film and an orientation film are arranged to separate all metal layers from a liquid crystal layer to thereby preyent contact between liquid crystals and metallic materials(s).