Patent ID: 9263475
Filing Date: 2016-02-16
CPC Classification: H01L

Claim Text:
1. A thin film transistor (TFT) substrate, comprising: a substrate; a plurality of pixel electrodes disposed on the substrate; a gate layer disposed on the substrate; an active layer disposed corresponding to the gate layer; a first source layer and a second source layer contacting the active layer respectively; and a drain layer contacting the active layer and electrically coupled to one of the pixel electrodes, wherein the drain layer has at least one extending portion, wherein the gate layer, the active layer, the first source layer and the drain layer constitute a first transistor; the gate layer, the active layer, the second source layer and the drain layer constitute a second transistor; and when the first and second transistors are disabled, the first and second source layers are electrically isolated from each other, wherein the active layer of the first transistor is direct physically connected to the active layer of the second transistor, the sum of the number of the first and second source layers disposed on the active layer is more than the number of the drain layer disposed on the active layer, and only one extending portion is disposed between the first source layer and second source layer.