Patent ID: 6731364
Filing Date: 2004-05-04
Classification: G02F

Abstract:
A liquid crystal display device comprisinga pair of substrates; a liquid crystal layer put between the pair of substrates; a plurality of scanning signal lines formed on one of the pair of substrates; a plurality of image signal lines crossing the scanning signal lines in a matrix arrangement; thin film transistors formed in the vicinity of intersections of the scanning signal lines and the image signal lines; pixel electrodes connected with the thin film transistors; a gate insulative film substantially covering the scanning signal lines; and a protection insulative film substantially covering the image signal lines and the thin film transistors, wherein at least one of the scanning signal lines and the image signal lines is made of a two-layered film of a first conductive film as a lower layer and a second conductive film as an upper layer, the first conductive film is made of an alloy comprising molybdenum as a main ingredient and containing tungsten, and the second conductive film is made of an alloy comprising molybdenum as a main ingredient and containing zirconium.