Patent ID: 6816221
Filing Date: 2004-11-09
Classification: G02F

Abstract:
An active matrix type liquid crystal display device of a lateral electric field type, comprising:a first substrate and a second substrate disposed in opposition to each other with a liquid crystal layer interposed therebetween; a plurality of gate lines formed on the first substrate; a plurality of drain lines formed to intersect the plurality of gate lines in matrix form; thin film transistors respectively formed with respect to intersections of the gate lines and the drain lines; and pixels, each provided in an area surrounded by a pair of adjacent gate lines and a pair of adjacent drain lines each of the pixels having: a semiconductor layer formed on the first substrate; a first insulating film formed on the semiconductor layer; a gate line formed on the first insulating film; a second insulating film formed on the gate line; a drain line formed on the second insulating film; a third insulating film formed on the drain line; and a common electrode or common electrode line formed on the third insulating film; the semiconductor layer being connected to a corresponding one of the thin film transistors near which one of the pair of the gate lines adjacent to one another is formed, and having an area which is formed under another of the pair of the gate lines adjacent to one another with the first insulating film interposed therebetween.