Patent ID: 7894009
Filing Date: 2011-02-22
Classification: G02F,H01L

Abstract:
1. A liquid crystal display device, with at least the following characteristics in a liquid crystal display device that is filled with liquid crystals between 1) a primary transparent insulating substrate that aligns, in a 2-dimensional matrix, unit pixels that have on a principal plane at least 1) an insulating gate type transistor, b) scanning lines that also work as gate electrodes and signal lines that also work as source wires for the said insulated gate type transistor, and c) pixel electrodes that are connected to drain wires and d) counter electrodes formed within a specific distance from said pixel electrodes, and 2) a secondary transparent insulating substrate or color filter that faces said primary transparent insulating substrate, comprising: I) one or more primary metal layers as scanning lines and counter electrodes on a principal plane of a primary transparent insulating substrate; II) an island-like channel layer through a gate insulating layer above the gate electrodes; III) a protective insulating layer narrower than the gate electrodes on the said channel layer; IV) a plurality of openings self aligned with said island-like channel layer, on said scanning lines outside an image display area, exposing parts of the scanning lines within said openings; V) a pair of semiconductor layers as the source-drain of the insulating gate type transistor, on said channel layer, partly overlapping with the gate electrodes; VI) a plurality of source wires and drain wires consisting of one or more secondary metal layers and a heat resistant metal layer on said semiconductor layers, and gate insulating layer, and electrodes terminals of scanning lines consisting of secondary metal layers on said openings, and electrode terminals of signal lines comprising parts of said signal lines; and VII) a passivation insulating layer with openings on said electrode terminals of scanning lines and signal lines, on said primary transparent insulating substrate.