Patent ID: 7787067
Filing Date: 2010-08-31
Classification: G02F

Abstract:
1. A method of manufacturing a display substrate, comprising: forming a channel layer and a source metal layer on a base substrate; forming a first photoresist pattern comprising a first thickness part formed in a contact area of the source metal layer, and a second thickness part formed in an end area of the source metal layer, the end area being connected to the contact area, the second thickness part being thinner than the first thickness part; patterning the source metal layer and the channel layer using the first photoresist pattern to form a contact electrode on the contact area and a protrusion protruding beyond the contact electrode and extending from the contact area to the end area; forming a passivation layer on the base substrate; and forming a transparent electrode layer to contact a portion of the contact electrode exposed by removing a portion of the passivation layer corresponding to the contact electrode and the protrusion, wherein patterning the source metal layer and channel layer comprises etching the source metal layer and the channel layer using the first photoresist pattern, removing the second thickness part of the first photoresist pattern, and removing an end portion of the contact electrode exposed through the first photoresist film of which the second thickness part is removed, and wherein etching the source metal layer and the channel layer comprises forming a switching pattern formed in a source area, a channel area, and a drain area and connected to the contact electrode.