IP Library › Granted Patent US 12,069,908
Granted Patent B2
US 12,069,908 · App. 17/228,100 · Granted Aug 20, 2024

Display device

Inventors: Mi Yeon So (Cheongju-si, KR); Hye Song Kwun (Bucheon-si, KR); Yong Chul Kim (Asan-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
H10K59/131H10K50/844
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Quick Facts
Patent No.
US 12,069,908
App. No.
17/228,100
Granted
Aug 20, 2024
Kind
B2
Abstract

A display device may include a substrate including a display area and a peripheral area adjacent to the display area, fan-out lines disposed in the peripheral area of the substrate, an insulation layer disposed on the fan-out lines, at least one first dam disposed on the insulation layer in the peripheral area, the at least one first dam surrounding the display area, a second dam disposed on the insulation layer in the peripheral area, the second dam surrounding the at least one first dam, and a blocking pattern disposed between the insulation layer and an edge of the second dam adjacent to the at least one first dam.

Claims (65)

1. A display device, comprising:

a substrate including a display area and a peripheral area adjacent to the display area;

fan-out lines disposed in the peripheral area of the substrate;

an insulation layer disposed on the fan-out lines;

at least one first dam disposed on the insulation layer in the peripheral area, the at least one first dam surrounding the display area;

a second dam disposed on the insulation layer in the peripheral area, the second dam surrounding the at least one first dam; and

a blocking pattern disposed on the insulation layer and confined between an outer edge of the at least one first dam and a center of the second damn as seen in a side view, wherein

an inner edge of the second dam overlaps an outer edge of the blocking pattern as seen in plan view, and

an inner edge of the blocking pattern is spaced apart from the outer edge of and outermost first dam as seen in plan view.

2. The display device of claim 1 , wherein a material of the blocking pattern is different from a material of the fan-out lines.

3. The display device of claim 2 , wherein

the blocking pattern includes at least one of aluminum (Al) and titanium (Ti), and

the fan-out lines include molybdenum (Mo).

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

a light-emitting element disposed on the substrate in the display area; and

an encapsulation layer overlapping the light-emitting element, the at least one first dam, and at least a portion of the second dam, the encapsulation layer including:

a first inorganic encapsulation layer;

a second inorganic encapsulation layer disposed on the first inorganic encapsulation layer; and

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

5. The display device of claim 4 , wherein the first inorganic encapsulation layer and the second inorganic encapsulation layer are disposed between the at least one first dam and the second dam.

6. The display device of claim 5 , wherein a distal edge of the encapsulation layer is disposed on the second dam.

7. The display device of claim 5 , wherein an edge of the organic encapsulation layer is disposed on the at least one first dam.

8. The display device of claim 4 , further comprising:

an active pattern disposed on the substrate in the display area;

a first gate pattern disposed on the active pattern;

a second gate pattern disposed on the first gate pattern;

a first data pattern disposed on the second gate pattern; and

a second data pattern disposed between the first data pattern and the light-emitting element.

9. The display device of claim 8 , wherein the blocking pattern and at least one of the first data pattern and the second data pattern are directly disposed on a same layer.

10. The display device of claim 8 , wherein the fan-out lines and at least one of the first gate pattern and the second gate pattern are directly disposed on a same layer.

11. The display device of claim 1 , wherein the second dam penetrates the insulation layer to directly contact the substrate.

12. The display device of claim 1 , wherein

the second dam comprises multiple layers, and

a bottom surface of the blocking pattern directly contacts a top surface of a lower layer of the second dam.

13. The display device of claim 1 , wherein

the second dam comprises multiple layers, and

a top surface of the blocking pattern directly contacts a bottom surface of a lower layer of the second dam.

14. A display device, comprising:

a substrate including a display area and a peripheral area adjacent to the display area;

fan-out lines disposed in the peripheral area of the substrate;

at least one first dam disposed on the fan-out lines in the peripheral area, the at least one first dam surrounding the display area;

a second dam disposed on the fan-out lines in the peripheral area, the second dam surrounding the at least one first dam; and

a blocking pattern disposed on the fan-out lines and confined between an outer edge of the at least one first dam and a center of the second damn as seen in a side view, wherein

an inner edge of the second dam overlaps an outer edge of the blocking pattern as seen in plan view, and

an inner edge of the blocking pattern is spaced apart from the outer edge of and outermost first dam as seen in plan view.

15. The display device of claim 14 , further comprising:

a first power line disposed on the substrate in the peripheral area, wherein

the blocking pattern is electrically connected to the first power line.

16. The display device of claim 15 , wherein the blocking pattern and the first power line are directly disposed on a same layer.

17. The display device of claim 16 , wherein the blocking pattern is integral with the first power line.

18. The display device of claim 15 , wherein the blocking pattern and the first power line are disposed on different layers.

19. The display device of claim 18 , wherein the blocking pattern is electrically connected to the first power line through a contact hole.

20. The display device of claim 15 , wherein the blocking pattern protrudes from the first power line in the plan view.

21. The display device of claim 15 , further comprising:

a second power line disposed on the substrate in the peripheral area,

wherein the blocking pattern is spaced apart from the second power line.

22. The display device of claim 14 , further comprising:

a light-emitting element disposed on the substrate in the display area; and

an encapsulation layer overlapping the light-emitting element, the at least one first dam, and at least a portion of the second dam, the encapsulation layer including:

a first inorganic encapsulation layer;

a second inorganic encapsulation layer disposed on the first inorganic encapsulation layer; and

an organic encapsulation layer disposed between the first inorganic encapsulation layer and the second inorganic encapsulation layer,

wherein the first inorganic encapsulation layer and the second inorganic encapsulation layer are disposed between the at least one first dam and the second dam.

23. The display device of claim 14 , wherein

the blocking pattern is disposed directly over at least one of the fan-out lines.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 12, 2021
From: SO, MI YEON; KWUN, HYE SONG; KIM, YONG CHUL
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 055894/0878 →
Priority Claims (1)
KR 10-2020-0044519 · Apr 13, 2020 · national
Continuity (1)
Related Publication 20210320165A1 · Oct 14, 2021
Cited By (1)
US 12,751,183