Patent ID: 8941803
Filing Date: 2015-01-27
Classification: G02F

Abstract:
1. A liquid crystal display device of a lateral electric field mode comprising: a liquid crystal layer sandwiched between a first substrate and a second substrate; an array of pixels arranged two-dimensionally on said first substrate in a matrix pattern by crossing a plurality of video signal lines and a plurality of scanning signal lines with each other, each of said pixels being provided with at least a switching element; a transparent insulating film provided on said video signal lines and said scanning signal lines; a plurality of pixel electrodes provided on said transparent insulating film; a plurality of common electrodes provided on said transparent insulating film; and a plurality of common lines provided on said transparent insulating film, wherein said common lines being formed in a grid-shaped pattern overlap with said plurality of video signal lines and said plurality of scanning lines on said first substrate; wherein one direction grid material of said common lines is made of a first conductor having lower reflectivity against optical light than that of a metal layer, while another direction grid material of said common lines extending in other direction is made of a second conductor including the metal layer such that said one direction and the other direction are crossing each other, wherein a peripheral circuit using a same semiconductor layer disposed in a display area is provided around said display area, and a conductor extended from said common line covers a part of said peripheral circuit with said transparent insulating film interposed therebetween, a part of said peripheral circuit is a signal processing circuit.