Patent ID: 8441013

Claim:
A TFT substrate, structure, comprising: TFTs, scan signal lines, and data signal lines formed on a TFT substrate, for use in a display panel in which (i) a display screen is divided into a plurality of display screens so that the divided display screens are arrayed in a direction of the data signal line and (ii) the display screens thus divided are driven by scan signal line drive circuits and data signal line drive circuits, respectively, wherein: each of the data signal lines is electrically separated, at a point where neither an intrinsic semiconductor layer as a semiconductor layer used in formation of a channel region of the TFT nor a layer formed on the intrinsic semiconductor layer and used as source and drain regions of the TFT is formed, so as to be electrically separated between adjacent ones of the divided display screens into which the display screen is divided along the data signal lines; in a predetermined region including a region above lines which intersect with the data signal lines so as to below the data signal lines, (i) the intrinsic semiconductor layer is formed, (ii) the layer used as the source and drain regions of the TFT is formed on the intrinsic layer, and (iii) the data signal lines are formed on the layer used as the source and drain regions of the TFT; neither the intrinsic semiconductor layer nor the layer used as source and drain regions is formed below edge parts of two of data signal lines that face each other via the point where each of the data signal lines is electrically separated; and the edge parts are formed directly on a base on which the intrinsic semiconductor layer is formed elsewhere.