Patent ID: 9666829
Date: 2017-05-30
CPC Classifications: H01L

Claim:
1. An organic electroluminescent display device, comprising: a first electrode connecting to a light emitting control device; a first insulating layer covering a peripheral portion of the first electrode and having an opening exposing a central portion of the first electrode; a second electrode contacting the first electrode in the opening of the first insulating layer and extending from an upper surface of the first electrode to an upper surface of the first insulating layer; a second insulating layer covering a peripheral portion of the second electrode; an organic electroluminescence layer extending from a top surface of the second electrode to a top horizontal surface of the second insulating layer; a third electrode over the organic electroluminescence layer; the second electrode including a stepped portion between the first electrode and the first insulating layer; and a passivation layer over the third electrode, wherein a portion of the third electrode and the passivation layer are located in the opening of the first insulating layer, and an overlapping area of the second electrode, the organic electroluminescence layer and the third electrode is a light emitting area, and the light emitting area includes the stepped portion.