Patent ID: 9733538
Date: 2017-08-15
CPC Classifications: G02F,H01L

Claim:
1. A TFT array substrate, in which TFT elements and pixel electrodes being correspondingly connected with the TFT elements are arrayed in matrix on an insulating substrate, the TFT array substrate comprising: gate bus lines on the insulating substrate, the gate bus lines being correspondingly connected with the TFT elements and being formed from a first conductive material; and source bus lines on the insulating substrate, the source bus lines being correspondingly connected with the TFT elements and being formed from a second conductive material, the pixel electrodes being made from a third conductive material, the insulating substrate having a display area in which the pixel electrodes are arrayed in matrix, and a periphery area around the display area, the periphery area being provided with driver circuits for driving the TFT elements corresponding thereto, the periphery area being provided with (i) a first branch wiring being correspondingly connected with one of the driver circuits, and (ii) a first main wiring being connected with the first branch wiring, the first branch wiring being formed from one of the first conductive material and the second conductive material, the first main wiring being formed from the other one of the first conductive material and the second conductive material, the periphery area being provided with a connection part, at which the first main wiring is connected with the first branch wiring, at the connection part, a connection conductor electrically connecting the first main wiring with the first branch wiring, the connection conductor being formed from the third conductive material, the connection part having a branch wiring via hole through which the first branch wiring, which is covered with the connection conductor, is exposed, the connection part being such that at least part of the branch wiring via hole overlaps with the first main wiring in a plane view, and the first branch wiring is electrically connected with a branch wiring extension part extended on and along the first main wiring.