IP Library › Granted Patent US 11,430,842
Granted Patent B2
US 11,430,842 · App. 16/868,493 · Granted Aug 30, 2022

Display device and method of manufacturing the same

Inventors: Wooyong Sung (Yongin-si, KR); Jaesik Kim (Yongin-si, KR); Jaeik Kim (Yongin-si, KR); Yeonhwa Lee (Yongin-si, KR); Joongu Lee (Yongin-si, KR)
H01L27/3246H01L51/56H01L2251/308
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 11,430,842
App. No.
16/868,493
Granted
Aug 30, 2022
Kind
B2
Abstract

To provide a display device having a reduced non-display area, the display device including: a substrate including a display area, the display area including a first area and a second area; a first pixel electrode in the first area, and a second pixel electrode in the second area; a pixel-defining layer on the substrate and including a first opening and a second opening, the first opening exposing at least a portion of the first pixel electrode, and the second opening exposing at least a portion of the second pixel electrode; a first intermediate layer on the at least a portion of the first pixel electrode, and a second intermediate layer on the at least a portion of the second pixel electrode; a first opposite electrode on the first intermediate layer; and a second opposite electrode on the first opposite electrode and the second intermediate layer.

Claims (33)

1. A display device including:

a substrate including a display area, the display area including a first area and a second area;

a first pixel electrode in the first area, and a second pixel electrode in the second area;

a pixel-defining layer on the substrate and including a first opening and a second opening, the first opening exposing at least a portion of the first pixel electrode, and the second opening exposing at least a portion of the second pixel electrode;

a first intermediate layer on the at least a portion of the first pixel electrode, and a second intermediate layer on the at least a portion of the second pixel electrode;

a first opposite electrode on the first intermediate layer; and

a second opposite electrode on the first opposite electrode and the second intermediate layer.

2. The display device of claim 1 , wherein

the second opposite electrode includes a transparent conductive material.

3. The display device of claim 2 , wherein

the transparent conductive material includes at least one of indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), indium oxide (In2O3), indium gallium oxide (IGO), and aluminum zinc oxide (AZO).

4. The display device of claim 1 , wherein

the second opposite electrode is in direct contact with the first opposite electrode.

5. The display device of claim 1 , wherein

the first opposite electrode does not overlap the second intermediate layer.

6. The display device of claim 1 , further comprising an island electrode arranged on the second intermediate layer and exposing at least a portion of the second intermediate layer.

7. The display device of claim 6 , wherein

the second opposite electrode is in direct contact with the island electrode.

8. The display device of claim 6 , wherein

the island electrode does not directly contact the first opposite electrode.

9. The display device of claim 6 , further comprising a hydrophobic layer arranged between the island electrode and the second intermediate layer.

10. The display device of claim 9 , wherein

the hydrophobic layer includes a self-assembled monolayer (SAM).

11. The display device of claim 1 , wherein

the first opening has a first width, and

the second opening has a second width, the second width being less than or equal to the first width.

12. The display device of claim 1 , further comprising:

a third pixel electrode in the second area; and

a third intermediate layer on the third pixel electrode.

13. The display device of claim 12 , wherein

the first opposite electrode extends toward the second area and is arranged on the third intermediate layer.

14. The display device of claim 13 , wherein

the second opposite electrode is arranged on the first opposite electrode.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 6, 2020
From: SUNG, WOOYONG; KIM, JAESIK; KIM, JAEIK; LEE, YEONHWA; LEE, JOONGU
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 052593/0917 →
Priority Claims (1)
KR 10-2019-0136899 · Oct 30, 2019 · national
Continuity (1)
Related Publication 20210134901A1 · May 6, 2021