Patent ID: 8803146
Filing Date: 2014-08-12
Classification: H01L

Abstract:
1. A semiconductor device comprising: a glass substrate; a transistor over the glass substrate, the transistor comprising: a second insulating layer over the transistor; a pixel electrode over the second insulating layer; a third insulating layer over the pixel electrode; a light-emitting layer over the pixel electrode and the third insulating layer; an electrode over the light-emitting layer, wherein the oxide semiconductor layer comprises indium and zinc, wherein each of a side surface of the source electrode and a side surface of the drain electrode has a step in a lower portion thereof, wherein a first angle of the step that is made between the side surface of the source electrode and an upper surface of the glass substrate is greater than or equal to 20° and smaller than or equal to 90°, and wherein a second angle of the step that is made between the side surface of the drain electrode and the upper surface of the glass, substrate is greater than or equal to 20° and smaller than or equal to 90°.