IP Library Granted Patent US 12,379,799
Granted Patent B2
US 12,379,799 · App. 18/234,316 · Granted Aug 5, 2025

Display device

Inventors: Hyoeng Ki Kim (Yongin-si, KR); Hyeon Bum Lee (Yongin-si, KR); Hyun Ho Kim (Yongin-si, KR)
Assignee: Samsung Display Co., Ltd.
G06F3/0412G06F3/0446H10K59/122H10K59/38H10K59/40H10K59/873H10K59/8791H10K59/8792G06F3/0443
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Quick Facts
Patent No.
US 12,379,799
App. No.
18/234,316
Granted
Aug 5, 2025
Kind
B2
Abstract

A display device, includes: a light emitting element layer including a sub-pixel and a pixel defining film defining the sub-pixel; a thin film encapsulation layer on the light emitting element layer; a pseudo-reflection pattern overlapping the pixel defining film and formed on the thin film encapsulation film; a connection electrode on the pseudo-reflection pattern; a second touch insulating layer on the connection electrode; and a driving electrode and a sensing electrode on the second touch insulating layer, wherein a width of the connection electrode is greater than a width of the driving electrode.

Claims (27)

1. A display device, comprising:

a light emitting element layer including a sub-pixel and a pixel defining film defining the sub-pixel;

a thin film encapsulation layer on the light emitting element layer;

a resin layer pattern overlapping the pixel defining film and formed on the thin film encapsulation film;

a connection electrode on the resin layer pattern and following a contour of one or more inclination surfaces of the resin layer pattern and a first upper surface of the resin layer pattern;

a second touch insulating layer on the connection electrode; and

a driving electrode and a sensing electrode on the second touch insulating layer,

wherein a width of the connection electrode is greater than a width of the driving electrode.

2. The display device of claim 1 , wherein the one or more inclination surfaces of the resin layer pattern comprises a first inclination surface adjacent to the sub-pixel, a second inclination surface facing the first inclination surface, and the first upper surface connecting the first inclination surface and the second inclination surface.

3. The display device of claim 2 , wherein the connection electrode comprises a third inclination surface on the first inclination surface, a fourth inclination surface on the second inclination surface, and a second upper surface on the first upper surface.

4. The display device of claim 1 , wherein the resin layer pattern does not overlap the sub-pixel.

5. The display device of claim 1 , wherein the driving electrode does not overlap the sub-pixel.

6. The display device of claim 1 , wherein the second touch insulating layer further comprises a touch contact hole, and

wherein the connection electrode is connected to the driving electrode through the touch contact hole.

7. The display device of claim 1 , further comprising a first touch insulating layer between the thin film encapsulation layer and the resin layer pattern.

8. The display device of claim 1 , further comprising a first touch insulating layer on the resin layer pattern and the thin film encapsulation layer not covered by the resin layer pattern.

9. The display device of claim 8 , further comprising a buffer layer between the thin film encapsulation layer and the resin layer pattern.

10. The display device of claim 1 , further comprising a third touch insulating layer covering the driving electrode and the sensing electrode.

11. The display device of claim 10 , further comprising a color filter layer on the third touch insulating layer.

12. The display device of claim 11 , wherein the color filter layer includes a color filter and a light blocking member.

13. The display device of claim 12 , wherein a width of the light blocking member is greater than a width of the driving electrode and equal to or smaller than a width of the connection electrode.

14. The display device of claim 12 , wherein a width of the light blocking member is width greater than a width of resin layer pattern and equal to or smaller than a width of the connection electrode.

15. The display device of claim 10 , further comprising a polarization film on the third touch insulating layer.

16. The display device of claim 15 , further comprising a component hole penetrating the light emitting element layer, the thin film encapsulation layer and the second touch insulating layer, an inorganic encapsulation layer surrounding the component hole, and a protective layer on the inorganic encapsulation layer.

17. The display device of claim 16 , wherein the resin layer pattern is formed of a same material as the protective layer.

18. The display device of claim 17 , wherein the resin layer pattern is formed of a low-temperature curable photosensitive resin composition.

19. The display device of claim 18 , wherein the low-temperature curable photosensitive resin composition is at least one selected from the group consisting of an epoxy-modified siloxane binder or an epoxy monomer, which is alkali-soluble, has a double bond and has reactivity by heat.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 5, 2023
From: KIM, HYOENG KI; LEE, HYEON BUM; KIM, HYUN HO
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 064806/0331 →
Priority Claims (1)
KR 10-2022-0106563 · Aug 25, 2022 · national
Continuity (1)
Related Publication 20240069658A1 · Feb 29, 2024
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