IP Library › Granted Patent US 12,504,857
Granted Patent B2
US 12,504,857 · App. 19/000,884 · Granted Dec 23, 2025

Display device

Inventors: Saehee Han (Yongin-si, KR); Koichi Sugitani (Yongin-si, KR); Gwui-Hyun Park (Yongin-si, KR); Hokyung Jang (Yongin-si, KR)
Assignee: SAMSUNG DISPLAY CO., LTD.
G06F3/0446G06F3/0412
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Quick Facts
Patent No.
US 12,504,857
App. No.
19/000,884
Granted
Dec 23, 2025
Kind
B2
Abstract

A display device includes a display panel. A touch panel is disposed on the display panel and comprises a sensing area and a hole area having a through-hole defined therein. The hole area is surrounded by the sensing area in a plan view. The sensing area includes a first sensor conductive layer disposed on the display panel. A sensing insulating layer is disposed on the first sensor conductive layer. A second sensor conductive layer is disposed on the sensing insulating layer. At least one of the first sensor conductive layer and the second sensor conductive layer includes a mesh opening. The sensing insulating layer includes a siloxane-based polymer. The sensing insulating layer has a dielectric constant in a range of about 2 to about 3.3.

Claims (71)

1 . A display device comprising:

a display panel; and

a touch panel disposed on the display panel, the touch panel comprising a sensing area and a hole area having a through-hole defined therein, the hole area is surrounded by the sensing area in a plan view,

wherein the sensing area comprises:

a first sensor conductive layer disposed on the display panel;

a sensing insulating layer disposed on the first sensor conductive layer; and

a second sensor conductive layer disposed on the sensing insulating layer,

wherein at least one of the first sensor conductive layer and the second sensor conductive layer comprises a mesh opening,

the sensing insulating layer comprises a siloxane-based polymer, and

the sensing insulating layer has a dielectric constant in a range of about 2 to about 3.3.

2 . The display device of claim 1 , wherein the sensing insulating layer has a thickness in a range of about 1 μm to about 5 μm.

3 . The display device of claim 1 , wherein the sensing area further comprises a base insulating layer disposed between the display panel and the first sensor conductive layer.

4 . The display device of claim 1 , wherein:

the sensing insulating layer is disposed on the display panel in the hole area; and

the second sensor conductive layer is disposed on the sensing insulating layer in the hole area,

wherein the second sensor conductive layer in the hole area comprises the mesh opening.

5 . The display device of claim 4 , wherein the hole area further comprises a base insulating layer that is directly disposed between the display panel and the sensing insulating layer.

6 . The display device of claim 1 , wherein the second sensor conductive layer is directly disposed on the sensing insulating layer.

7 . The display device of claim 1 , wherein:

the touch panel further comprises a cover insulating layer disposed on the second sensor conductive layer; and

the cover insulating layer comprises a same material as the sensing insulating layer.

8 . The display device of claim 1 , wherein the first sensor conductive layer comprises:

first sensing patterns, each of the first sensing patterns is disposed in a first direction; and

second sensing patterns, each of the second sensing patterns is disposed in a second direction crossing the first direction.

9 . The display device of claim 1 , wherein:

the display panel comprises a display area corresponding to the sensing area of the touch panel; and

the display panel comprises a light emitting element in the display area.

10 . A display device comprising:

a display panel; and

a touch panel disposed on the display panel, the touch panel comprising a sensing area and a hole area having a through-hole defined therein, the hole area is surrounded by the sensing area in a plan view,

wherein the hole area comprises:

a sensing insulating layer disposed on the display panel; and

a second sensor conductive layer disposed on the sensing insulating layer,

wherein the second sensor conductive layer comprises a mesh opening,

the sensing insulating layer comprises a siloxane-based polymer, and

the sensing insulating layer has a dielectric constant in a range of about 2 to about 3.3.

11 . The display device of claim 10 , wherein the hole area further comprises a base insulating layer directly disposed between the display panel and the sensing insulating layer.

12 . The display device of claim 10 , wherein:

a first sensor conductive layer is disposed on the display panel in the sensing area;

the sensing insulating layer is disposed on the first sensor conductive layer in the sensing area; and

the second sensor conductive layer is disposed on the sensing insulating layer in the sensing area,

wherein at least one of the first sensor conductive layer or the second sensor conductive layer comprises a mesh opening in the sensing area.

13 . The display device of claim 12 , wherein the sensing insulating layer of the sensing area has a thickness in a range of about 1 to about 5 μm.

14 . The display device of claim 12 , wherein the sensing area further comprises a base insulating layer disposed between the display panel and the first sensor conductive layer.

15 . The display device of claim 12 , wherein the first sensor conductive layer comprises:

first sensing patterns, each of the first sensing patterns is disposed in a first direction; and

second sensing patterns, each of the second sensing patterns is disposed in a second direction crossing the first direction.

16 . The display device of claim 10 , wherein the second sensor conductive layer is directly disposed on the sensing insulating layer.

17 . The display device of claim 10 , wherein:

the touch panel further comprises a cover insulating layer disposed on the second sensor conductive layer; and

the cover insulating layer comprises a same material as the sensing insulating layer.

18 . The display device of claim 10 , wherein:

the display panel comprises a display area corresponding to the sensing area of the touch panel; and

the display panel comprises a light emitting element in the display area.

19 . A display device comprising:

a display panel; and

a touch panel disposed on the display panel, the touch panel comprising a sensing area and a hole area having a through-hole defined therein, the hole area is surrounded by the sensing area in a plan view,

wherein the touch panel comprises:

a base insulating layer;

first sensing patterns disposed on the base insulating layer, each of the first sensing patterns is disposed in a first direction; and

second sensing patterns disposed on the base insulating layer, each of the second sensing patterns is disposed in a second direction crossing the first direction;

first connection patterns connecting the first sensing patterns to each other and disposed between the base insulating layer and the first sensing patterns;

second connection patterns disposed on the base insulating layer, the second connection patterns connecting the second sensing patterns to each other; and

a sensing insulating layer disposed between the base insulating layer, and the first sensing patterns, the second sensing patterns and the second connection patterns,

wherein the first sensing patterns, the second sensing patterns, and the second connection patterns are disposed in the sensing area and the hole area,

the first connection patterns are disposed in the sensing area,

the sensing insulating layer comprises a siloxane-based polymer, and

the sensing insulating layer has a dielectric constant in a range of about 2 to about 3.3.

20 . The display device of claim 19 , wherein:

the touch panel further comprises a cover insulating layer disposed on the first sensing patterns, the second sensing patterns and the second connection patterns; and

the cover insulating layer comprises a same material as the sensing insulating layer.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 24, 2024
From: HAN, SAEHEE; SUGITANI, KOICHI; PARK, GWUI-HYUN; JANG, HOKYUNG
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 069673/0680 →
Priority Claims (1)
KR 10-2024-0029538 · Feb 29, 2024 · national
Continuity (1)
Related Publication 20250278158A1 · Sep 4, 2025
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