Patent ID: 9305987
Filing Date: 2016-04-05
CPC Classification: H01L

Claim Text:
1. An organic light emitting diode display, comprising: a substrate; a semiconductor layer on the substrate and including a switching semiconductor layer and a driving semiconductor layer separated from each other; a first gate insulating layer over the semiconductor layer; a switching gate electrode on the first gate insulating layer and overlapping the switching semiconductor layer; a second gate insulating layer over the switching gate electrode; a driving gate electrode on the second gate insulating layer, overlapping the driving semiconductor layer, and having a first surface facing the substrate; and an interlayer insulating layer over the driving gate electrode and the second gate insulating layer, wherein the second gate insulating layer includes: a second lower gate insulating layer on the first gate insulating layer, a crack blocking layer on the second lower gate insulating layer, the crack blocking layer extending from a first region to a second region, the first region between plates of a storage capacitor and the second region between the storage capacitor and a third region, and a second upper gate insulating layer on the crack blocking layer, wherein the first surface contacts the second gate insulating layer.