Patent ID: 8304297

Claim:
A method of making an active matrix substrate, comprising the steps of: a) forming a plurality of gate lines on a base substrate; b) depositing an insulating film that covers the gate lines; c) depositing a semiconductor layer over the insulating film; d) forming a positive resist layer over the semiconductor layer; e) exposing the positive resist layer to light that has been incident thereon through the backside of the base substrate and then developing the positive resist layer exposed, thereby defining a first resist mask over the gate lines so that the first resist mask is aligned with the gate lines; f) removing parts of the semiconductor layer, which are not covered with the first resist mask, thereby forming a striped semiconductor layer, including portions to be semi conductor regions for thin-film transistors, so that the striped semiconductor layer is self-aligned with the gate lines; g) removing the first resist mask; h) depositing a conductive film over the striped semiconductor layer; and i) patterning the conductive film using a second resist mask, thereby forming not only a data line and a pixel electrode, which both cross a first one of the gate lines, but also a conductive member, which extends from the pixel electrode parallel to the data line and crosses a second one of the gate lines that is adjacent to the first gate line, and then patterning the striped semiconductor layer, thereby defining the semiconductor regions for the thin-film transistors below the data line and the conductive member.