Input sensing device, display device including the same, and electronic device including the display device

Patent metadata

Field	Value
Publication number	US-12422959-B2
Application number	US-202418609897-A
Country	US
Kind code	B2
Filing date	Mar 19, 2024
Priority date	May 24, 2023
Publication date	Sep 23, 2025
Grant date	Sep 23, 2025

Abstract

A display device and an electronic device include an input sensing device. Touch sensor electrodes of the input sensing device are disposed in a first sensing area of the base layer. Gesture sensor electrodes are disposed in a second sensing area of the base layer that surrounds the first sensing area, and are electrically insulated from the touch sensor electrodes. First pads and second pads are disposed in a non-sensing area of the base layer that is located at one side of the second sensing area. Touch sensing lines connect the touch sensor electrodes and the first pads to each other. Gesture sensing lines connect the gesture sensor electrodes and the second pads to each other. One of the gesture sensor electrodes includes sub-electrodes separated from each other by the touch sensing lines and a bridge that connects adjacent sub-electrodes to each other.

First claim

What is claimed is:

1. An input sensing device, comprising:
touch sensor electrodes disposed in a first sensing area of a base layer;
gesture sensor electrodes disposed in a second sensing area of the base layer that surrounds the first sensing area, wherein the gesture sensor electrodes are electrically insulated from the touch sensor electrodes;
first pads and second pads disposed in a non-sensing area of the base layer that is located at one side of the second sensing area;
touch sensing lines that connect the touch sensor electrodes and the first pads to each other; and
gesture sensing lines that connect the gesture sensor electrodes and the second pads to each other,
wherein one of the gesture sensor electrodes includes:
sub-electrodes separated from each other by the touch sensing electrodes; and
a bridge that connects adjacent sub-electrodes to each other, and

wherein the touch sensor electrodes have a mesh structure,
wherein, in a plan view, each of the touch sensor electrodes connected to the touch sensing lines includes a protrusion part that protrudes between the sub-electrodes, and
wherein, in a plan view, the bridge crosses the protrusion part.

2. The input sensing device of claim 1 , wherein
the touch sensor electrodes and the sub-electrodes are disposed in the same layer, and
the bridge is disposed in a different layer from the touch sensor electrodes.

3. The input sensing device of claim 1 ,
wherein the touch sensing lines do not have a mesh structure, and
wherein the bridge does not cross the touch sensing lines.

4. The input sensing device of claim 1 , wherein another of the gesture sensor electrodes includes only one electrode, and does not include any sub-electrodes.

5. The input sensing device of claim 1 , wherein, in a plan view, the sub-electrodes are spaced apart from the touch sensor electrodes by 100 μm or more.

6. The input sensing device of claim 1 , further comprising:
a touch driver connected to the first pads, wherein the touch driver senses an object's touch input; and
a gesture driver connected to the second pads, wherein the gesture driver senses an object's approach or motion.

7. The input sensing device of claim 1 , wherein the gesture sensor electrodes include four gesture sensor electrodes that extend along an edge of the first sensing area in different directions with respect to the first sensing area.

8. The input sensing device of claim 1 , wherein, in a plan view,
the touch sensing lines extend along a first side of the base layer, and the gesture sensing lines extend along a second side of the base layer that differs from the first side, and
wherein the touch sensing lines and the gesture sensing lines do not intersect each other.

9. The input sensing device of claim 1 , further comprising an antenna,
wherein at least one gesture sensor electrode includes a concave part that has a width that is less than an average width of the gesture sensor electrodes, and
wherein the antenna has a shape that corresponds to a shape of the concave part and is disposed in the concave part.

10. The input sensing device of claim 9 , wherein, in a plan view, the antenna is spaced apart from the at least one gesture sensor electrode by 100 μm or more.

11. The input sensing device of claim 10 , wherein the average width of the gesture sensor electrodes is about 500 μm, and the width of the antenna is about 300 μm.

12. The input sensing device of claim 9 , further comprising:
a third pad disposed in the non-sensing area of the base layer; and
a communication line that connects the third pad and the antenna to each other,
wherein the antenna includes a first electrode and a second electrode that surrounds the first electrode, and
wherein the communication line includes a pair of ground lines connected to the second electrode and a signal line between the pair of ground lines and that is connected to the first electrode.

13. The input sensing device of claim 1 , wherein, in a plan view, the bridge crosses one of the touch sensing lines.

14. A display device, comprising:
a display layer that includes light emitting elements; and
a sensor layer disposed on the display layer,
wherein the sensor layer includes:
touch sensor electrodes disposed in a first sensing area;
touch sensing lines connected to the touch sensor electrodes;
gesture sensor electrodes disposed in a second sensing area that surrounds the first sensing area, wherein the gesture sensor electrodes are electrically insulated from the touch sensor electrodes; and
gesture sensing lines connected to the gesture sensor electrodes,

wherein one of the gesture sensor electrodes includes:
sub-electrodes that are separated from each other by the touch sensing lines; and
a bridge that connects adjacent sub-electrodes to each other, and
wherein the touch sensor electrodes have a mesh structure,
wherein, in a plan view, each of the touch sensor electrodes connected to the touch sensing lines includes a protrusion part that protrudes between the sub-electrodes, and
wherein, in a plan view, the bridge crosses the protrusion part.

15. The display device of claim 14 , wherein, in a plan view, the sub-electrodes are spaced apart from the touch sensor electrodes by 100 μm or more.

16. The display device of claim 14 ,
wherein, in a plan view, the touch sensing lines extend along a first side of the base layer, and the gesture sensing lines extend along a second side of the base layer that differs from the first side, and
wherein the touch sensing lines and the gesture sensing lines do not intersect each other.

17. The display device of claim 14 , wherein the sensor layer further includes an antenna,
wherein at least one of the gesture sensor electrodes includes a concave part that has a width that is less than an average width of the gesture sensor electrodes, and
the antenna has a shape that corresponds to a shape of the concave part and is disposed in the concave part.

18. An electronic device, comprising:
a display panel that includes light emitting elements;
a sensor disposed on the display panel; and
a processor connected to the display panel and the sensor,
wherein the sensor includes:
touch sensor electrodes disposed in a first sensing area;
gesture sensor electrodes disposed in a second sensing area that surrounds the first sensing area, wherein the gesture sensor electrodes are electrically insulated from the touch sensor electrodes and at least one of the gesture sensor electrodes includes a concave part that has a width that is less than an average width of the gesture sensor electrode; and
an antenna that has a shape that corresponds to a shape of the concave part and is disposed in the concave part, and

wherein the processor
senses an object's touch input based on a sensing signal received from the touch sensor electrodes,
senses an object's approach or motion based on a sensing signal received from the gesture sensor electrodes, and
communicates with an external device through the antenna.

Assignees

• Samsung Display Co Ltd

Inventors

• Choi Jae Uk
• Kim Ki Seo
• Kim Yun Ho
• Lee Hyun Jae

Classifications

• G06F3/0446 Primary

  using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes · CPC title

• G06F2203/04107

  Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds · CPC title

• G06F2203/04112

  Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material · CPC title

• G06F3/0448

  Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality · CPC title

• H01Q1/22

  by structural association with other equipment or articles · CPC title