Patent ID: 9318616
Filing Date: 2016-04-19
CPC Classification: H01L

Claim Text:
1. An organic light emitting diode (OLED) display comprising: a gate electrode formed on a substrate; a gate insulating layer formed on the gate electrode; a semiconductor layer formed on the gate insulating layer to overlap with the gate electrode, and including a channel area and source and drain areas which extend from the channel area to lateral end portions, respectively, and are conductorized; an etch stopper formed on the channel area and exposing the source area and the drain area; a source electrode contacting portions of the exposed source area; and a drain electrode contacting portions of the exposed drain area, wherein the source electrode and the drain electrode each include a first metal layer and a second metal layer stacked on the first metal layer, wherein the etch stopper formed on the channel area does not contact the source and drain electrodes, wherein the first metal layer and second metal layers of the source and drain electrodes have a substantially same shape and size, respectively, and wherein the conductorized source and drain areas extend from a top surface of the semiconductor layer to a bottom surface of the semiconductor layer.