Patent ID: 8987742
Filing Date: 2015-03-24
Classification: G02F,H01L

Abstract:
1. A liquid crystal display comprising: an insulating substrate; a gate electrode disposed on the insulating substrate; an oxide semiconductor layer disposed on the gate electrode; an etch stopper disposed on the oxide semiconductor layer in a channel area; a first electrode disposed on the insulating substrate; source and drain electrodes separated from each other on the etch stopper and extending to an upper portion of the oxide semiconductor layer; a passivation layer disposed on the etch stopper, the first electrode, and the source and drain electrodes; and a second electrode disposed on the passivation layer and connected to the drain electrode, wherein the source electrode includes a lower source layer and an upper source layer, and the drain electrode includes a lower drain layer and an upper drain layer, and wherein the lower source layer and the lower drain layer comprise the same material and are disposed on the same layer as the first electrode.