IP Library Granted Patent US 12669910
Granted Patent B2
US 12669910 · App. 18/971,739 · Granted Jun 30, 2026

Display device including an input-sensing member

Inventor: Dongchun Lee (Yongin-si, KR)
Assignee: Samsung Display Co., Ltd.
G06F3/0448G06F3/0412G06F3/04164G06F3/0443G06F3/0446H10K59/40G06F2203/04112
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Quick Facts
Patent No.
US 12669910
App. No.
18/971,739
Granted
Jun 30, 2026
Kind
B2
Abstract

A display device includes: a display panel including: a base layer including a display area, and a non-display area adjacent to the display area; and a display element layer on the base layer; and an input sensing layer on the display element layer, and including: a first sensing insulating layer; a conductive layer on the first sensing insulating layer, and including a sensing area overlapping with the display area, and a non-sensing area overlapping with the non-display area; and a second sensing insulating layer on the conductive layer. The conductive layer includes: first sensing electrodes overlapping with the sensing area; second sensing electrodes, each including a first portion overlapping with the sensing area, and a second portion connected to the first portion and overlapping with the non-sensing area; and trace lines connected to the first sensing electrodes and the second sensing electrodes.

Claims (64)

1 . A display device comprising:

a display panel comprising:

a base layer comprising a display area, and a non-display area adjacent to the display area; and

a display element layer on the base layer; and

an input sensing layer on the display element layer, and comprising:

a first sensing insulating layer;

a conductive layer on the first sensing insulating layer, and comprising a sensing area overlapping with the display area, and a non-sensing area overlapping with the non-display area; and

a second sensing insulating layer on the conductive layer, wherein the conductive layer comprises:

first sensing electrodes overlapping with the sensing area;

second sensing electrodes, each comprising a first portion overlapping with the sensing area, and a second portion connected to the first portion and overlapping with the non-sensing area; and

trace lines connected to the first sensing electrodes and the second sensing electrodes,

wherein some of the second sensing electrodes comprise the first portion and the second portion to have a size that is substantially equal to or less than a size of the first sensing electrodes, and

wherein others of the second sensing electrodes further comprise a third portion integral with the first portion or the second portion to have a size that is greater than the size of the first sensing electrodes.

2 . The display device of claim 1 , wherein each of the first sensing electrodes has a polygonal shape, and

wherein the first portion of each of the second sensing electrodes has a shape corresponding to a cut out of a portion of the first sensing electrodes.

3 . The display device of claim 1 , wherein each of the trace lines is connected to a corresponding one of the first sensing electrodes or a corresponding one of the second sensing electrodes in the display area.

4 . The display device of claim 1 , wherein an area boundary between the display area and the non-display area has a circular shape, and

wherein an electrode boundary overlapping with the area boundary between the first portion and the second portion has a curved-line shape.

5 . The display device of claim 1 , wherein an area boundary between the display area and the non-display area has a polygonal shape, and

wherein an electrode boundary overlapping with the area boundary between the first portion and the second portion has a straight line shape or a polygonal shape.

6 . The display device of claim 1 , wherein each of the first sensing electrodes and the first portion comprises a first conductive line comprising first mesh lines extending in a first diagonal direction, and second mesh lines extending in a second diagonal direction and crossing the first mesh lines, and

wherein the first mesh lines and the second mesh lines cross each other to define first mesh openings.

7 . The display device of claim 6 , wherein the display element layer comprises pixels comprising:

a light-emitting element; and

a pixel definition layer through which a pixel opening is defined, and

wherein a light-emitting area defined by an area where the light-emitting element is exposed through the pixel opening overlaps with each of the first mesh openings.

8 . The display device of claim 7 , wherein the light-emitting area comprises:

a first light-emitting area configured to display a red color, extending in the first diagonal direction between a first direction and a second direction crossing the first direction, and having a bar shape;

a second light-emitting area configured to display a green color, extending in the first diagonal direction, and having a bar shape; and

a third light-emitting area configured to display a blue color, and having a lozenge shape.

9 . The display device of claim 6 , wherein the second portion comprises a second conductive line comprising third mesh lines extending in the first diagonal direction, and fourth mesh lines extending in the second diagonal direction and crossing the third mesh lines, and

wherein the third mesh lines and the fourth mesh lines cross each other to define second mesh openings.

10 . The display device of claim 9 , wherein each of the second portions has a continuous shape without being disconnected in an area overlapping with the non-display area.

11 . The display device of claim 9 , wherein the display element layer comprises light-emitting elements, and

wherein the second mesh openings do not overlap with the light-emitting elements.

12 . The display device of claim 1 , wherein the second sensing electrodes are between about 0.9 times to about 1.1 times of the size of the first sensing electrodes in a plan view.

13 . The display device of claim 1 , wherein the display element layer comprises:

a first electrode; and

a second electrode on the first electrode, and overlapping with at least a portion of the non-display area, and

wherein the second portion of each of the second sensing electrodes overlaps with the second electrode.

14 . The display device of claim 1 , wherein the second sensing electrodes have a capacitance greater than or equal to about 0.9 times and smaller than or equal to about 1.1 times of a capacitance of the first sensing electrodes.

15 . The display device of claim 1 , wherein the first and second portions are respectively connected to each other and integral with each other.

16 . The display device of claim 1 , further comprising an integrated circuit at one side of the display panel,

wherein the trace lines do not overlap with each other, extend in a direction toward the one side, and are connected to the integrated circuit.

17 . The display device of claim 1 , wherein the first sensing electrodes have a rectangular shape in a plan view, and are arranged along a first direction and a second direction perpendicular to the first direction.

18 . The display device of claim 1 , wherein the second sensing insulating layer covers the conductive layer, and

wherein an edge of the second sensing insulating layer is spaced from an edge of the display panel.

19 . The display device of claim 1 , wherein each of the first sensing electrodes and the second sensing electrodes is a self-capacitance touch sensor.

20 . A display device comprising:

a display panel comprising:

a base layer comprising a display area, and a non-display area adjacent to the display area; and

a display element layer on the base layer; and

an input-sensing layer on the display element layer, and comprising:

a first sensing insulating layer;

a conductive layer on the first sensing insulating layer, and comprising a sensing area overlapping with the display area, and a non-sensing area overlapping with the non-display area; and

a second sensing insulating layer on the conductive layer, wherein the conductive layer comprises:

first sensing electrodes overlapping with the sensing area;

second sensing electrodes, each comprising a first portion overlapping with the sensing area, and a second portion connected to the first portion and overlapping with the non-sensing area; and

trace lines connected to the first sensing electrodes and the second sensing electrodes,

wherein each of the first sensing electrodes and the first portion comprises a first conductive line comprising first mesh lines extending in a first diagonal direction, and second mesh lines extending in a second diagonal direction and crossing the first mesh lines,

wherein the first mesh lines and the second mesh lines cross each other to define first mesh openings,

wherein the second portion comprises a second conductive line comprising third mesh lines extending in the first diagonal direction, and fourth mesh lines extending in the second diagonal direction and crossing the third mesh lines,

wherein the third mesh lines and the fourth mesh lines cross each other to define second mesh openings, and

wherein the second conductive line of the second portions has a line width that is greater than a line width of the first conductive line of the first portions.