Patent ID: 8293564

Claim:
A method of manufacturing a thin film transistor substrate, the method comprising: forming a color filter layer having a reverse taper shape on a base substrate, the base substrate including a pixel area having a switching area, a first line area adjacent to the pixel area, a second line area adjacent to the pixel area and intersecting the first line area, wherein the color filter layer is present in the pixel area but not in at least a part of the switching area and is present in the second line area; forming a gate line and a thin film transistor's gate electrode using the reverse taper shape of the color filter layer; over the gate line, forming a first insulating layer, then a first semiconductor layer, and then a first conductive layer which is a metal layer; etching the first conductive layer, the first semiconductor layer, and the first insulating layer to form a gate insulating layer, source and drain electrodes, and a semiconductor layer which are part of the thin film transistor, and also to form a data line; and forming a pixel electrode in the pixel area of the base substrate.