Patent ID: 8890148
Filing Date: 2014-11-18
Classification: H01L

Abstract:
1. An organic light emitting display comprising: a gate electrode formed over a substrate; an active layer electrically insulated from the gate electrode; a first gate insulating layer and a second gate insulating layer formed between the gate electrode and active layer so as to electrically insulate the active layer from the gate electrode, wherein the distance between the substrate and the second gate insulating layer is greatest at the top of the second gate insulating layer; source and drain electrodes each contacting the active layer; and a pixel electrode at least a portion of which is formed between and contacts both the first gate insulating layer and the second gate insulating layer, wherein the distance between the substrate and the pixel electrode is greatest at the top of the pixel electrode, wherein the first gate insulating layer and the second gate insulating layer have substantially the same thickness, and wherein the top of the second gate insulating layer is a greater distance from the substrate than the top of the pixel electrode is from the substrate.