Patent ID: 9594280
Date: 2017-03-14
CPC Classifications: G02F,H01L

Claim:
1. A thin film transistor array substrate comprising a base substrate and a thin film transistor, a second insulation layer, a first electrode and a second electrode formed on the base substrate, wherein the first electrode and the second electrode are used to form an electric field, and the second insulation layer is interposed between the first electrode and the second electrode; the second electrode is a comb-like electrode, and located at a side of the second insulating layer away from the base substrate, the comb-like electrode includes a plurality of slit portions and stripe electrode portions arranged alternately; the base substrate further includes a protrusion structure located at a side of the first electrode close to the base substrate, a position of the protrusion structure corresponds to the slit portions of the comb-like electrode, wherein a protruding shape of the protrusion structure is a prism shape, an extending direction of the prism shape is parallel with an extending direction of the slits, and a maximum width of a cross section of the protrusion structure along a direction parallel with the surface of the base substrate is smaller than a width of the slit portions of the comb-like electrode.