Touch sensor and touch input device comprising same

Patent metadata

Field	Value
Publication number	US-11960688-B2
Application number	US-202118002807-A
Country	US
Kind code	B2
Filing date	May 12, 2021
Priority date	Jul 9, 2020
Publication date	Apr 16, 2024
Grant date	Apr 16, 2024

Abstract

The present invention relates to a touch sensor and a touch input device and, more specifically, to a touch sensor formed of a circular single layer and a touch input device comprising same. A touch input device, according to one embodiment of the present invention, comprises a circular touch sensor, wherein the touch sensor includes a plurality of electrodes disposed on a single layer and spaced apart from each other on a plurality of virtual circles having a common center.

First claim

The invention claimed is:

1. A touch input device comprising a circular touch sensor, wherein the touch sensor includes a plurality of electrodes disposed on a single layer and spaced apart from each other on a plurality of virtual circles having a common center,
wherein the plurality of virtual circles includes a first to a seventh virtual circles,
wherein the plurality of electrodes includes a plurality of first electrodes and a plurality of second electrodes,
wherein the plurality of the first electrodes includes a first-0th to a first-7th electrodes disposed on each of a first, a third, a fifth, and a seventh virtual circles among a first to a seventh virtual circles, and
the plurality of second electrodes comprising:
one or a plurality of second-0th electrodes disposed on the second virtual circle;
a plurality of second-1 st electrodes, a plurality of second-2nd electrodes, and a plurality of second-3rd electrodes disposed on the fourth virtual circle;
a plurality of second-4th electrodes, a plurality of second-5th electrodes, a plurality of second-6th electrodes, and a plurality of second-7th electrodes disposed on the sixth virtual circle.

2. The touch input device according to claim 1 , wherein the plurality of first electrodes is one of a driving electrode for outputting a driving signal and a receiving electrode for receiving a sensing signal, and the plurality of second electrodes is the other when the touch sensor is driven in a mutual driving mode.

3. The touch input device according to claim 1 ,
wherein the plurality of second-1st electrodes, the plurality of second-2nd electrodes, and the plurality of second-3rd electrodes are arranged such that the arrangement order of the second-1st electrode—the second-2nd electrode—the second-3rd electrode—the second-2nd electrode is repeated, and
wherein the plurality of second-4th electrodes, the plurality of second-5th electrodes, the plurality of second-6th electrodes, and the plurality of second-7th electrodes are arranged such that the arrangement order of the second-4th electrode—the second-5th electrode—the second-6th electrode—the second-7th electrode—the second-6th electrode—the second-5th electrode is repeated.

4. The touch input device according to claim 3 ,
wherein a top surface area of the second-1st electrode and the second-3rd electrode is larger than a top surface area of the second-2nd electrode,
wherein a top surface area of the second-4th electrode and the second-7th electrode is larger than a top surface area of the second-5th electrode and the second-6th electrode,
wherein a part of the second-1 st electrode, entire the second-2nd electrode, and a part of the second-3rd electrode are disposed between any one of the first-0th to the first-7th electrodes disposed on the third virtual circle and any one of the first-0th to the first-7th electrodes disposed on the fifth virtual circle, and
wherein a part of the second-4th electrode, entire the second-5th electrode, entire the second-6th electrode, and a part of the second-7th electrode are disposed between any one of the first-0th to the first-7th electrodes disposed on the fifth virtual circle and any one of the first-0th to the first-7th electrodes disposed on the seventh virtual circle.

5. The touch input device according to claim 1 ,
wherein the plurality of the second-1st electrodes, the plurality of the second-2nd electrodes, and the plurality of the second-3rd electrodes are arranged such that the arrangement order of the second-1st electrode—the second-2nd electrode—the second-3rd electrode is repeated, and
wherein the plurality of the second-4th electrodes, the plurality of the second-5th electrodes, the plurality of the second-6th electrodes, and the plurality of the second-7th electrodes are arranged such that the arrangement order of the second-4th electrode—the second-5th electrode—the second-6th—the second-7th electrode is repeated.

6. The touch input device according to claim 5 ,
wherein top surface areas of the second-1 st electrode, the second-2nd electrode, and the second-3rd electrode are the same as each other,
wherein the top surface areas of the second-4th electrode, the second-5th electrode, the second-6th electrode, and the second-7th electrode are the same as each other,
wherein the second-1 st electrode, the second-2nd electrode, and the second-3rd electrode are disposed on between any one of the first-0th to the first-7th electrodes disposed on the third virtual circle and any one of the first-0th to the first-7th electrodes disposed on the fifth virtual circle, and
wherein the second-4th electrode, the second-5th electrode, the second-6th electrode, and the second-7th electrode are disposed on between any one of the first-0th to the first-7th electrodes disposed on the fifth virtual circle and any one of the first-0th to the first-7th electrodes disposed on the seventh virtual circle.

7. The touch input device according to claim 1 , wherein the second-0th electrode is further disposed on the center.

8. A touch input device comprising a circular touch sensor, wherein the touch sensor includes a plurality of electrodes disposed on a single layer and spaced apart from each other on a plurality of virtual circles having a common center,
wherein the plurality of virtual circles includes the first to the seventh virtual circles,
wherein the plurality of electrodes includes the plurality of the first electrodes and the plurality of the second electrodes,
wherein the plurality of the first electrodes includes the first-0th to the first-7th electrodes disposed on each of the first, the third, the fifth, and the seventh virtual circles among the first to the seventh virtual circles,
the plurality of the second electrodes comprising:
a one or the plurality of the second-0th electrodes disposed on the second virtual circle;
the plurality of the second-1 st electrodes and the plurality of second-2nd electrodes disposed on the fourth virtual circle;
the plurality of the second-3rd electrodes, the plurality of second-4th electrodes, and a plurality of second-5th electrodes disposed on the sixth virtual circle.

9. The touch input device according to claim 8 , wherein the plurality of the first electrodes is one of the driving electrodes for outputting the driving signal and a receiving electrode for receiving a sensing signal, and the plurality of the second electrodes is the other when the touch sensor is driven in the mutual driving mode.

10. The touch input device according to claim 8 ,
wherein the plurality of the second-1 st electrodes and the plurality of the second-2nd electrodes are arranged such that the arrangement order of the second-1st electrode—the second-2nd electrode is repeated, and
wherein the plurality of the second-3rd electrodes, the plurality of the second-4th electrodes, and the plurality of the second-5th electrodes are arranged such that the arrangement order of the second-3rd electrode—the second-4th electrode—the second-5th— the second-4th electrode is repeated.

11. The touch input device according to claim 8 ,
wherein a top surface areas of the second-1 st electrode and the second-2nd electrode are the same as each other,
wherein a top surface areas of the second-3rd electrode and the second-5th electrode are the same as each other,
wherein a top surface area of the second-4th electrode is half of a top surface area of the second-3rd electrode and the second-5th electrode,
wherein the part of the second-1st electrode and the part of the second-2nd electrode are disposed on between any one of the first-0th to the first-7th electrodes disposed on the third virtual circle and any one of the first-0th to

Assignees

• Hideep Inc

Inventors

• Moon Hojun
• Kim Bonkee
• Kim Seyeob
• Kim Inseob

Classifications

• G06F3/0443 Primary

  using a single layer of sensing electrodes · CPC title

• G06F3/0416 Primary

  Control or interface arrangements specially adapted for digitisers · CPC title

• G06F3/044

  by capacitive means · CPC title

• G06F1/3234

  Power saving characterised by the action undertaken · 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