Detection device

Patent metadata

Field	Value
Publication number	US-11330720-B2
Application number	US-202017010252-A
Country	US
Kind code	B2
Filing date	Sep 2, 2020
Priority date	Apr 15, 2014
Publication date	May 10, 2022
Grant date	May 10, 2022

Abstract

A detection device is provided including first substrate including first region, second region and third region arranged in first direction, second region arranged between first and third regions; first detection electrode arranged on first substrate; second detection electrode arranged on first substrate and being adjacent to first detection electrode; first electrode coupled to first detection electrode and continuously formed from first to third regions; second electrode coupled to second detection electrode, and continuously formed from first to third regions, convex portions located between first electrode and second electrode in second region and spaced away from first and second electrodes; and protective layer formed on first and second electrodes in first region and not formed on first electrode and second electrode in third region, wherein at least one of convex portions is covered with protective layer, and at least another one of convex portions is not covered with protective layer.

First claim

The invention is claimed as follows:

1. A detection device comprising:
a first substrate including a first region, a second region and a third region arranged in a first direction, the second region arranged between the first region and the third region;
a first detection electrode arranged on the first substrate;
a second detection electrode arranged on the first substrate
and being adjacent to the first detection electrode;
a first electrode coupled to the first detection electrode and continuously formed from the first region to the third region on the first substrate;
a second electrode coupled to the second detection electrode, and continuously formed from the first region to the third region on the first substrate,
convex portions located between the first electrode and the second electrode in the second region and spaced away from the first electrode and the second electrode; and
a protection layer formed on the first electrode and the second electrode in the first region and not formed on the first electrode and the second electrode in the third region,
wherein at least one of the convex portions is covered with the protective layer, and
at least another one of the convex portions is not covered with the protective layer.

2. The detection device according to claim 1 , wherein the convex portions include a first convex portion and a second convex portion,
the second convex portion is nearer to the third region than the first convex portion is,
the first convex portion is covered with the protective layer,
and
the second convex portion is not covered with the protective layer.

3. The detection device according to claim 1 , wherein some of the convex portions are covered with the protective layer, and
others of the convex portions are not covered with the protective layer and are nearer to the third region than some of the convex portions are.

4. The detection device according to claim 1 , wherein each of the convex portions runs in a second direction crossing to the first direction.

5. The detection device according to claim 4 , wherein each of the convex portions arrange in the first direction.

6. The detection device according to claim 4 , wherein the convex portions include third convex portions and fourth convex portions facing the third convex portions in the first direction,
the third convex portions are arranged in the second direction and are covered with the protective layer, and
the fourth convex portions are arranged in the second direction and are not covered with the protective layer.

7. The detection device according to claim 1 , wherein each of the convex portions runs in the first direction.

8. The detection device according to claim 7 , wherein each of the convex portions arrange in a second direction crossing to the first direction.

9. The detection device according to claim 1 , wherein the convex portions are disposed in a staggered arrangement.

10. The detection device according to claim 1 , wherein the protection layer is located at the first region and a part of the second region continuously.

11. The detection device according to claim 1 , wherein the first and second electrodes are terminals connected with a flexible printed circuit.

12. A detection device comprising:
a first substrate including a first region, a second region and a third region arranged in a first direction, the second region arranged between the first region and the third region;
a first detection electrode arranged on the first substrate;
a second detection electrode arranged on the first substrate and being adjacent to the first detection electrode;
a first electrode coupled to the first detection electrode and continuously formed from the first region to the third region on the first substrate;
a second electrode coupled to the second detection electrode, and continuously formed from the first region to the third region on the first substrate,
convex portions located between the first electrode and the second electrode in the second region and spaced away from the first electrode and the second electrode; and
a protective layer formed on the first electrode and the second electrode in the first region and a first part of the second region continuously and not formed on the first electrode and the second electrode in the third region and a second part of the second region.

13. The detection device according to claim 12 , wherein each of the convex portions runs in a second direction crossing to the first direction.

14. The detection device according to claim 13 , wherein each of the convex portions arrange in the first direction.

15. The detection device according to claim 13 , wherein the convex portions include third convex portions and fourth convex portions facing the third convex portions in the first direction,
the third convex portions are arranged in the second direction and are covered with the protective layer, and
the fourth convex portions are arranged in the second direction and are not covered with the protective layer.

16. The detection device according to claim 12 , wherein each of the convex portions runs in the first direction.

17. The detection device according to claim 16 , wherein each of the convex portions arrange in a second direction crossing to the first direction.

18. The detection device according to claim 12 , wherein the convex portions are disposed in a staggered arrangement.

19. The detection device according to claim 12 , wherein the first and second electrodes are terminals connected with a flexible printed circuit.

Assignees

• Japan Display Inc

Inventors

• Ishizaki Koji
• Sonoda Daisuke
• Ishigaki Toshimasa

Classifications

• G06F3/0445

  using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer · CPC title

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• H05K2201/09381

  Shape of non-curved single flat metallic pad, land or exposed part thereof; Shape of electrode of leadless component · CPC title

• G06F3/0443

  using a single layer of sensing electrodes · CPC title

• G06F3/0446

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