Patent ID: 7429751
Filing Date: 2008-09-30
Classification: G02F,H01L

Abstract:
1. A semiconductor device comprising: a pixel portion; and a driver circuit, wherein the pixel portion comprises: a first thin film transistor; an interlayer insulating film having at least one contact hole over the first thin film transistor; a pixel electrode electrically connected to the first transistor through the contact hole; and a first spacer formed to overlap with the contact hole, wherein the driver circuit comprises: a second thin film transistor; the interlayer insulating film over the second thin film transistor; a source line and a drain line electrically connected to the second transistor; and a second spacer formed to be in direct contact with at least one of the source line and the drain line, and wherein at least one of the first thin film transistor and the second thin film transistor comprises a gate electrode having a tapered shape.