IP Library Granted Patent US 11,594,590
Granted Patent B2
US 11,594,590 · App. 17/118,840 · Granted Feb 28, 2023

Display device

Inventors: Ki Ho Bang (Hwaseong-si, KR); Eun Hye Kim (Namyangju-si, KR); Sang Hyun Jun (Suwon-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
H01L27/3276H01L23/293H01L23/3135H01L27/15H01L27/3246H01L27/3258H01L27/3279H01L2251/558
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Quick Facts
Patent No.
US 11,594,590
App. No.
17/118,840
Granted
Feb 28, 2023
Kind
B2
Abstract

A display device includes a substrate that includes a display area and a peripheral area, a transistor in the display area, a pixel electrode connected to the transistor, a common electrode that overlaps the pixel electrode, and an organic insulation layer that is between the common electrode and the substrate, and overlaps at least a part of the peripheral area, wherein a thickness of a portion of the organic insulation layer overlapping the display area, and a thickness of a portion of the organic insulation layer overlapping the peripheral area, are different from each other, and the organic insulation layer includes a valley that penetrates the organic insulation layer, while overlapping the peripheral area.

Claims (47)

1. A display device, comprising:

a substrate that includes a display area and a peripheral area;

a transistor in the display area;

a first electrode electrically connected to the transistor;

a second electrode that overlaps the first electrode; and

an organic insulation layer that is between the first electrode and the substrate, and overlaps at least a part of the peripheral area,

a valley penetrating the organic insulation layer and overlapping the peripheral area;

a first metal layer that is under the organic insulation layer and overlapping the valley; and

a second metal layer and a third metal layer at least partially disposed in the valley;

wherein the first and second metal layers directly contact each other, and

the second and third metal layers directly contact each other.

2. The display device as claimed in claim 1 , wherein the transistor further includes:

a semiconductor layer on the substrate;

a gate electrode overlapping the semiconductor layer; and

a source electrode and a drain electrode that are connected to the semiconductor layer,

wherein the display device further comprises a first connection member that is on the drain electrode and connects the first electrode and the drain electrode.

3. The display device as claimed in claim 2 ,

wherein the first metal layer is disposed on the same layer as the source electrode.

4. The display device as claimed in claim 2 ,

wherein the second metal layer is disposed on the same layer as the first connection member.

5. The display device as claimed in claim 2 ,

wherein the third metal layer is disposed on the same layer as the first electrode.

6. The display device as claimed in claim 2 , wherein the organic insulation layer includes:

a first organic insulation layer that is between the source electrode and the first connection member and between the drain electrode and the first connection member; and

a second organic insulation layer that is between the first connection member and the first electrode.

7. The display device as claimed in claim 6 , wherein a part of the first organic insulation layer is disposed between the first metal layer and the second metal layer.

8. The display device as claimed in claim 6 , wherein a part of the second organic insulation layer is disposed between the second metal layer and the third metal layer.

9. The display device of claim 6 , wherein the organic insulation layer comprises:

the first organic insulation layer comprising a first valley; and

the second organic insulation layer comprising a second valley.

10. The display device as claimed in claim 1 , wherein

the display device further comprises an encapsulation layer that is on the second electrode and overlaps the display area and the peripheral area, and

the encapsulation layer includes:

a first inorganic layer and a second inorganic layer; and

an organic layer between the first inorganic layer and the second inorganic layer.

11. The display device as claimed in claim 10 , wherein

touch lines are on the encapsulation layer that overlaps the peripheral area, and

a touch electrode is on the encapsulation layer overlaps the display area.

12. The display device as claimed in claim 11 , wherein one side of the encapsulation layer on which the touch lines are disposed and one side of the encapsulation layer on which the touch electrode is disposed have a step difference.

13. The display device as claimed in claim 10 , wherein the organic layer is disposed in the valley.

14. The display device as claimed in claim 10 , further comprising a dam disposed in the peripheral area,

wherein a distance from the dam to an edge of the display area is greater than a distance from an edge of the organic layer to the edge of the display area.

15. The display device of claim 9 , further comprising an encapsulation layer that is disposed on the second electrode,

wherein the encapsulation layer comprises:

a first inorganic layer and a second inorganic layer; and

an organic layer disposed between the first inorganic layer and the second inorganic layer, and the organic layer is disposed in the second valley.

16. The display device of claim 1 , wherein a thickness of a portion of the organic insulation layer overlapping the display area, and a thickness of a portion of the organic insulation layer overlapping the peripheral area, are different from each other.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 11, 2020
From: BANG, KI HO; KIM, EUN HYE; JUN, SANG HYUN
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 054618/0437 →
Priority Claims (1)
KR 10-2018-0140837 · Nov 15, 2018 · national
Continuity (2)
Continuation 16535299 · Aug 8, 2019
Related Publication 20210098525A1 · Apr 1, 2021
Cited By (1)
US 12,615,937