Patent ID: 11864429
Assignee: LG DISPLAY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. An organic light emitting display device comprising:
a substrate;
a first conductive layer disposed on the substrate;
a buffer layer disposed on the first conductive layer and including a first contact hole overlapping with a part of the first conductive layer;
a first active layer disposed on a part of a top surface of the buffer layer;
a first insulating film disposed on or over the first active layer and the buffer layer and including a second contact hole overlapping with the first contact hole;
a second conductive layer disposed on the first insulating film, and contacting a part of the first conductive layer and a part of the first active layer through the first contact hole and the second contact hole;
a second insulating film disposed on the second conductive layer and including a third contact hole overlapping with the first contact hole and the second contact hole; and
a third conductive layer disposed on the second insulating film and contacting a part of the second conductive layer through the second contact hole,
wherein the first contact hole, the second contact hole, and the third contact hole overlap with one another.