IP Library Granted Patent US 11,626,574
Granted Patent B2
US 11,626,574 · App. 16/847,349 · Granted Apr 11, 2023

Organic light-emitting display apparatus and method of manufacturing the same

Inventors: Jaesik Kim (Yongin-si, KR); Jaeik Kim (Yongin-si, KR); Yeonhwa Lee (Yongin-si, KR); Joongu Lee (Yongin-si, KR); Sehoon Jeong (Yongin-si, KR)
Assignee: Samsung Display Co., Ltd.
H01L51/5253H01L27/3246H01L51/56H01L2251/305
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Quick Facts
Patent No.
US 11,626,574
App. No.
16/847,349
Granted
Apr 11, 2023
Kind
B2
Abstract

An organic light-emitting display apparatus includes: a substrate; first and second pixel electrodes on the substrate and spaced from each other; an insulating layer between the first and second pixel electrodes, the insulating layer covering ends of the first and second pixel electrodes, and having a step height difference; an auxiliary electrode on the insulating layer; first and second intermediate layers on the first and second pixel electrodes, the first and second intermediate layers being spaced from each other, and including first and second light-emitting layers, respectively; first and second opposite electrodes on the first and second intermediate layers, the first and second opposite electrodes being spaced from each other, and in contact with the auxiliary electrode; and first and second passivation layers on the first and second opposite electrodes, the first and second passivation layers being spaced from each other, and covering the first and second opposite electrodes, respectively.

Claims (25)

1. An organic light-emitting display apparatus comprising:

a substrate;

first and second pixel electrodes on the substrate and spaced from each other;

an insulating layer between the first and second pixel electrodes, the insulating layer covering ends of the first and second pixel electrodes and having a step height difference;

an auxiliary electrode on the insulating layer;

first and second intermediate layers on the first and second pixel electrodes, respectively, the first and second intermediate layers being spaced from each other, and comprising first and second light-emitting layers, respectively;

first and second opposite electrodes on the first and second intermediate layers, respectively, the first and second opposite electrodes being spaced from each other, and in contact with the auxiliary electrode; and

first and second passivation layers on the first and second opposite electrodes, respectively, the first and second passivation layers being spaced from each other, and covering the first and second opposite electrodes, respectively, while contacting the auxiliary electrode and exposing a top surface of the auxiliary electrode between the first and second opposite electrodes.

2. The organic light-emitting display apparatus of claim 1 , wherein the auxiliary electrode has a closed loop shape that surrounds peripheries of the first and second pixel electrodes.

3. The organic light-emitting display apparatus of claim 1 , wherein the insulating layer has a closed loop shape that surrounds peripheries of the first and second pixel electrodes.

4. The organic light-emitting display apparatus of claim 1 , wherein the insulating layer comprises:

a first layer comprising an organic insulating material; and

a second layer covering the first layer, the second layer comprising an inorganic insulating material.

5. The organic light-emitting display apparatus of claim 1 , wherein the insulating layer comprises:

a first layer comprising an inorganic insulating material;

a second layer on the first layer, the second layer comprising an organic insulating material; and

a third layer on the second layer, the third layer comprising an inorganic insulating layer.

6. The organic light-emitting display apparatus of claim 1 , wherein ends of the first and second opposite electrodes are in contact with an upper surface of the auxiliary electrode.

7. The organic light-emitting display apparatus of claim 1 , wherein each of the first and second passivation layers comprises at least one selected from among an oxide, a nitride, and an oxynitride.

8. The organic light-emitting display apparatus of claim 1 , further comprising:

an encapsulation member sequentially arranged on the first passivation layer and the second passivation layer, the encapsulation member comprising at least one organic layer and at least one inorganic layer.

9. The organic light-emitting display apparatus of claim 1 , further comprising:

a first connection layer between the first opposite electrode and the first passivation layer; and

a second connection layer between the second opposite electrode and the second passivation layer.

10. The organic light-emitting display apparatus of claim 9 , wherein each of the first and second connection layers comprises a transparent conductive oxide.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 13, 2020
From: KIM, JAESIK; KIM, JAEIK; LEE, YEONHWA; LEE, JOONGU; JEONG, SEHOON
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 052382/0984 →
Priority Claims (1)
KR 10-2019-0043783 · Apr 15, 2019 · national
Continuity (1)
Related Publication 20200328378A1 · Oct 15, 2020
Cited By (1)
US 12,652,905