IP Library › Granted Patent US 10,756,149
Granted Patent B2
US 10,756,149 · App. 16/214,713 · Granted Aug 25, 2020

Organic light emitting display device

Inventors: Jaesung Lee (Paju-si, KR); Jonghyeok Im (Paju-si, KR); Dohyung Kim (Paju-si, KR); Seungwon Yoo (Paju-si, KR)
Assignee: LG Display Co., Ltd.
H01L27/3246H01L51/5225H01L51/5231H01L51/5237H01L51/5256H01L51/5271
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Quick Facts
Patent No.
US 10,756,149
App. No.
16/214,713
Granted
Aug 25, 2020
Kind
B2
Abstract

Disclosed is an organic light emitting display device including: an organic light emitting diode disposed in a first area of a substrate; and a reflective layer disposed in a second area adjacent to the first area. The reflective layer electrically contacts a cathode of the organic light emitting diode.

Claims (21)

1. An organic light emitting display device, comprising:

an organic light emitting diode disposed in a first area of a substrate; and

a reflective layer disposed in a second area adjacent to the first area on the substrate,

wherein the reflective layer is overlapped with an organic light emitting layer of the organic light emitting diode in the second area.

2. The organic light emitting display device of claim 1 , wherein the organic light emitting diode comprises:

an anode disposed in the first area;

the organic light emitting layer disposed on the anode and extended to the second area; and

a cathode disposed on the organic light emitting layer and positioned in the first area and the second area,

wherein the reflective layer is disposed on the cathode.

3. The organic light emitting display device of claim 2 , wherein the cathode is integrally formed to cover the first area and the second area.

4. The organic light emitting display device of claim 2 , further comprising a bank layer which defines the first area and the second area on the substrate, wherein the reflective layer has a curved shape to face a side surface of the bank layer.

5. The organic light emitting display device of claim 4 , wherein the bank layer contacts part of the anode of the organic light emitting diode.

6. The organic light emitting display device of claim 1 , wherein at least one of an organic passivation layer or an inorganic passivation layer is disposed to cover the organic light emitting diode.

7. The organic light emitting display device of claim 1 , wherein at least one of an organic passivation layer or an inorganic passivation layer is disposed on the reflective layer.

8. The organic light emitting display device of claim 7 , wherein further comprises a third passivation layer on the organic light emitting diode and the second passivation layer.

9. The organic light emitting display device of claim 6 , wherein further comprises a third passivation layer on the organic light emitting diode and a second passivation layer is disposed on the organic light emitting diode and the reflective layer.

10. The organic light emitting display device of claim 1 , wherein the first area is an area to display an image, and the second area is an area to reflect light.

11. The organic light emitting display device of claim 3 , wherein the bank layer covers the edges of the anode and exposes center portion of the anode.

12. The organic light emitting display device of claim 2 , further comprising a planarization layer on the first area of the substrate, wherein the anode is disposed on the planarization layer.

13. The organic light emitting display device of claim 12 , wherein the planarization layer is not disposed on the second area of the substrate.

14. The organic light emitting display device of claim 4 , wherein the bank layer is not disposed on the second area of the substrate.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 10, 2018
From: LEE, JAESUNG; IM, JONGHYEOK; KIM, DOHYUNG; YOO, SEUNGWON
To: LG DISPLAY CO., LTD.
Reel/Frame 047728/0551 →
Priority Claims (1)
KR 10-2017-0174848 · Dec 19, 2017 · national
Continuity (1)
Related Publication 20190189710A1 · Jun 20, 2019
Cited By (1)
US 12,382,790