Display device

Patent metadata

Field	Value
Publication number	US-2025053267-A1
Application number	US-202418637456-A
Country	US
Kind code	A1
Filing date	Apr 17, 2024
Priority date	Aug 11, 2023
Publication date	Feb 13, 2025
Grant date	—

Abstract

A display device is disclosed that includes a display panel and an input sensor including a plurality of conductive patterns. The conductive patterns include a first sensing electrode including first sensing patterns and bridge patterns, a second sensing electrode spaced apart from the first sensing electrode, and dummy patterns each overlapping the second sensing electrode and a first sensing pattern adjacent to the second sensing electrode in the first direction. Each of the bridge patterns is connected to two first sensing patterns through first contact holes. When a region, in which each of the plurality of dummy patterns overlaps each of the corresponding first sensing pattern and the second sensing electrode, is defined as an overlapping region, a dummy hole, which passes through a conductive pattern disposed on an upper part among the corresponding first sensing pattern, the second sensing electrode, and the plurality of dummy patterns, in a thickness direction, is defined in the overlapping region. Each of the bridge patterns is disposed between two dummy patterns in the second direction. Distances between the two dummy patterns and the bridge pattern, disposed between the two dummy patterns, are uniform in the second direction.

First claim

What is claimed is:

1 . A display device comprising:
a display panel including a plurality of light-emitting regions; and an input sensor disposed on the display panel and including a plurality of conducive patterns, wherein the plurality of conductive patterns include:
a first sensing electrode including a plurality of first sensing patterns provided along a first direction and a plurality of bridge patterns connecting adjacent first sensing patterns;
a second sensing electrode spaced apart from the first sensing electrode and including a plurality of second sensing patterns extending along a second direction crossing the first direction; and
a plurality of dummy patterns each overlapping, on a plane, the second sensing electrode and a first sensing pattern adjacent to the second sensing electrode in the first direction,
each of the plurality of bridge patterns is connected to two first sensing patterns through first contact holes, when a region, in which each of the plurality of dummy patterns overlaps each of the corresponding first sensing pattern and the second sensing electrode, is defined as an overlapping region, a dummy hole, which passes through a conductive pattern disposed on an upper part among the corresponding first sensing pattern, the second sensing electrode, and the plurality of dummy patterns, in a thickness direction, is defined in the overlapping region, each of the plurality of bridge patterns is disposed between two dummy patterns among the plurality of dummy patterns in the second direction, and distances between the two dummy patterns and the bridge pattern, disposed between the two dummy patterns, are uniform in the second direction.

2 . The display device of claim 1 , wherein the dummy hole comprises:
a first dummy hole defined in a region where each of the plurality of dummy patterns overlaps the second sensing electrode; or a second dummy hole defined in a region where each of the plurality of dummy patterns overlaps the corresponding first sensing pattern.

3 . The display device of claim 1 , wherein each of the plurality of dummy patterns is connected, through a second contact hole, to any one not overlapping the dummy hole among the corresponding first sensing pattern and the second sensing electrode.

4 . The display device of claim 1 , wherein the plurality of conductive patterns further comprise at least one additional dummy pattern overlapping any one among the corresponding first sensing pattern and the second sensing electrode, and not overlapping the other one.

5 . The display device of claim 4 , wherein when a region, in which the additional dummy pattern overlaps any one among the corresponding first sensing pattern and the second sensing electrode, is defined as an additional overlapping region, an additional dummy hole, which passes through a conductive pattern disposed on an upper part, among the corresponding first sensing pattern, the second sensing electrode, and the additional dummy pattern, in a thickness direction, is defined in the additional overlapping region.

6 . The display device of claim 5 , wherein the first contact hole, the dummy hole, and the additional dummy hole are arranged at regular intervals in the first direction and the second direction.

7 . The display device of claim 4 , wherein the additional dummy pattern is electrically connected, through a third contact hole, to any one overlapping therewith among the corresponding first sensing pattern and the second sensing electrode.

8 . The display device of claim 4 , wherein a distance between two dummy patterns adjacent to each other in the first direction, among the plurality of dummy patterns, is substantially same as a distance between any one among the plurality of bridge patterns and the additional dummy pattern adjacent thereto in the first direction.

9 . The display device of claim 1 , wherein the plurality of bridge patterns comprise a first bridge pattern which connects a corresponding (1-1)-th sensing pattern and a (1-2)-th sensing pattern to each other, among the plurality of first sensing patterns, and
the first bridge pattern includes:
a (1-1)-th bridge pattern which connects the (1-1)-th sensing pattern to the (1-2)-th sensing pattern; and
a (1-2)-th bridge pattern which is spaced apart from the (1-1)-th bridge pattern along the second direction, and connects the (1-1)-th sensing pattern to the (1-2)-th sensing pattern.

10 . The display device of claim 9 , wherein the plurality of dummy patterns comprise a first dummy pattern disposed between the (1-1)-th bridge pattern and the (1-2)-th bridge pattern in the second direction, and
a distance between the (1-1)-th bridge pattern and the first dummy pattern in the second direction is substantially same as a distance between the (1-2)-th bridge pattern and the first dummy pattern in the second direction.

11 . The display device of claim 1 , wherein a boundary part is defined between the first sensing electrode and the second sensing electrode, and
a portion of each of the plurality of dummy patterns overlaps the boundary part.

12 . The display device of claim 1 , wherein a length of each of the plurality of bridge patterns in the first direction is substantially same as a length of each of the plurality of dummy patterns in the first direction.

13 . The display device of claim 1 , wherein a first length of each of the plurality of bridge patterns in the first direction is larger than a second length of each of the plurality of dummy patterns in the first direction.

14 . The display device of claim 1 , wherein when a region, in which each of the plurality of bridge patterns overlaps each of the two first sensing patterns, is defined as a bridge overlapping region, a bridge dummy hole, which passes through a conductive pattern disposed on an upper part, among the two first sensing patterns and the plurality of bridge patterns, in a thickness direction, is defined in the bridge overlapping region.

15 . The display device of claim 1 , wherein the input sensor further comprises a sensing insulation layer disposed between the plurality of bridge patterns and the first sensing pattern, and the first contact hole passes through the sensing insulation layer.

16 . The display device of claim 1 , wherein the input sensor further comprises a sensing insulation layer disposed between the plurality of bridge patterns and the first sensing pattern, and
the dummy hole exposes an upper surface of the sensing insulation layer.

17 . The display device of claim 1 , wherein each of the plurality of first sensing patterns and the plurality of second sensing patterns comprises a plurality of mesh lines defining a plurality of openings respectively overlapping the plurality of light-emitting regions,
the plurality of mesh lines include:
a first mesh line having a first thickness; and
a second mesh line having a second thickness larger than the first thickness, and each of the first contact hole and the dummy hole overlaps the second mesh line.

18 . The display device of claim 1 , wherein the plurality of light-emitting regions comprise
a first light-emitting region configured to emit first color light, a second light-emitting region configured to emit second color light different from the first color light, and a third light-emitting region configured to emit third color light different from the first color light and the second color light, the first light-emitting region and the second light-emitting region are alternately arranged along the s

Assignees

• Samsung Display Co Ltd

Inventors

• Jeong Hwan-Hee
• Park Sungkyun
• Park Soyeon
• Lee Giryung
• Han Hyeyun

Classifications

• G06F3/044

  by capacitive means · CPC title

• G06F3/046

  by electromagnetic means · CPC title

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• G06F3/041

  Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means · CPC title

• H10K59/35

  comprising red-green-blue [RGB] subpixels · CPC title