Patent ID: 8279151
Filing Date: 2012-10-02
Classification: G02F,G09G

Abstract:
1. A display device, including: a substrate on which a plurality of scanning signal lines, a plurality of video signal lines which stereoscopically intersects the plurality of scanning signal lines by way of an insulation layer, and TFT elements and pixel electrodes which are arranged in pixel regions each of which is surrounded by two neighboring scanning signal lines and two neighboring video signal lines are formed, wherein the substrate arranges a first TFT element and a second TFT element in each pixel region in which the first TFT element and the second TFT element independently include a semiconductor layer, a drain electrode, and a source electrode respectively, the respective semiconductor layers of the first and second TFT elements are arranged in each pixel region on a scanning signal line forming the pixel region so as to not protrude from the scanning signal line, the scanning signal line on which the respective semiconductor layers of the first and second TFT elements are arranged includes a cutout portion at which a width of the scanning signal line is narrowed when the substrate is viewed in a plan view, and end portions of the respective drain and source electrodes of the second TFT element are disposed on the cutout portion when the substrate is viewed in the plan view, only either one of the first TFT element and the second TFT element in each pixel region is operated when a video signal is applied to the video signal lines and a scanning signal is applied to the scanning signal lines, and the first TFT element and the second TFT element in each pixel region differ from each other in a largeness or a shape of an occupied area or a width and a length of the semiconductor layer of each TFT element when the substrate is viewed in a plan view.