Detection device

• US 10,884,534 B2
• Filed: 03/06/2020
• Issued: 01/05/2021
• Est. Priority Date: 03/27/2013
• Status: Active Grant

• Current Assignee: Japan Display Incorporated
• Original Assignee: Japan Display Incorporated
• Inventors: Koito, Takeo, Ishizaki, Koji, Kurasawa, Hayato
• Primary Examiner(s): Polo, Gustavo
• Application Number:
  US16/811,505
• Publication Number:
  US 20200210013A1
• Time in Patent Office: 305 Days
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G06F 2203/04112 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 Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/044 by capacitive means
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
• CPC Class Codes: G06F 3/0448 Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality

Abstract

A detection device is provided and includes a detection electrode including first wire pieces, the detection electrode including a first wire and a second wire; and second wire pieces between the first wire and the second wire, wherein the first wire includes a first bent portion, the second wire includes a second bent portion, the first and second bent portions are formed by two of the first wire pieces including first and second edges, an angle of the first bent portion is different from an angle of the second bent portion, the first edge of the first bent portion is connected to the first edge of the second bent portion by a connecting portion, the second edge of the first bent portion is not in contact with the second edge of the second bent portion, and each of the second wire pieces is not connected to the first wire, the second wire, and the connecting portion.

Claims

1. A detection device comprising:

a detection electrode including first wire pieces, the detection electrode including a first wire and a second wire; and

second wire pieces between the first wire and the second wire,

wherein the first wire includes a first bent portion,

the second wire includes a second bent portion,

each of the first bent portion and the second bent portion is formed by two of the first wire pieces and includes a first edge and a second edge,

an angle of the first bent portion is different from an angle of the second bent portion,

the first edge of the first bent portion is connected to the first edge of the second bent portion by a connecting portion,

the second edge of the first bent portion is not in contact with the second edge of the second bent portion, and

each of the second wire pieces is not connected to the first wire, the second wire, and the connecting portion.

2. The detection device according to claim 1, wherein the connecting portion is a wire extending in a first direction, and

the first wire and the second wire are arranged in the first direction.

3. The detection device according to claim 1, wherein the detection electrode further includes a third wire adjacent to the first wire,

the third wire is connected to the connecting portion,

the first wire is between the third wire and the second wire pieces,

third wire pieces are located at an opposite side of the third wire from the first wire, and,

each of the third wire pieces is not connected to the first to third wires, the connecting portion, and the second wire pieces.

4. The detection device according to claim 3, wherein no wire pieces are located between the first wire and the third wire.

5. The detection device according to claim 1, wherein the detection electrode further includes a third wire with a third bent portion formed by two of the first wire pieces, and

an angle of the third bent portion is different from at least one of the angle of the first bent portion and the angle of the second bent portion.

6. The detection device according to claim 1, wherein the first wire includes a third bent portion formed by two of the first wire pieces, and

an angle of the third bent portion is different from at least one of the angle of the first bent portion and the angle of the second bent portion.

7. The detection device according to claim 1, further comprising a second connecting portion connecting the first wire to the second wire, and

the second connecting portion is located at an opposite side of the first and second wires from the connecting portion.

8. The detection device according to claim 7, wherein each of the first and second wire pieces is not connected to the second connecting portion.

9. The detection device according to claim 1, wherein the second wire pieces are separated from each other.

10. A detection device comprising:

a detection electrode including first wire pieces, the detection electrode including a first wire and a second wire; and

second wire pieces between the first wire and the second wire,

wherein the first wire includes a first bent portion,

the second wire includes a second bent portion,

each of the first bent portion and the second bent portion is formed by two of the first wire pieces,

an angle of the first bent portion is different from an angle of the second bent portion,

the first bent portion is connected to the second bent portion by a connecting portion extending in a first direction,

the first bent portion is apart from the second bent portion in the first direction, and

each of the second wire pieces is not connected to the first wire, the second wire, and the connecting portion.

11. The detection device according to claim 10, wherein the connecting portion is a wire, and

the first wire and the second wire are arranged in the first direction.

12. The detection device according to claim 10, wherein the detection electrode further includes a third wire adjacent to the first wire,

the third wire is connected to the connecting portion,

the first wire is between the third wire and the second wire pieces,

third wire pieces are located at an opposite side of the third wire from the first wire, and,

each of the third wire pieces is not connected to the first to third wires, the connecting portion, and the second wire pieces.

13. The detection device according to claim 12, wherein no wire pieces are located between the first wire and the third wire.

14. The detection device according to claim 10, wherein the detection electrode further includes a third wire with a third bent portion formed by two of the first wire pieces, and

an angle of the third bent portion is different from at least one of the angle of the first bent portion and the angle of the second bent portion.

15. The detection device according to claim 10, wherein the first wire includes a third bent portion formed by two of the first wire pieces, and

an angle of the third bent portion is different from at least one of the angle of the first bent portion and the angle of the second bent portion.

16. The detection device according to claim 10, further comprising a second connecting portion connecting the first wire to the second wire, and

the second connecting portion is located at an opposite side of the first and second wires from the connecting portion.

17. The detection device according to claim 10, wherein each of the first and second wire pieces is not connected to the second connecting portion.

18. The detection device according to claim 10, wherein the second wire pieces are separated from each other.

19. A detection device comprising:

a detection electrode including first wire pieces, the detection electrode including a first wire having some of the first wire pieces and a second wire having others of the first wire pieces; and

second wire pieces between the first wire and the second wire, the second wire pieces being separated from each other,

wherein the first wire includes a first bent portion,

the second wire includes a second bent portion,

each of the first bent portion and the second bent portion is formed by two of the first wire pieces,

an angle of the first bent portion is different from an angle of the second bent portion,

the first wire is connected to the second wire by a connecting portion extending in a first direction,

the first and second wires are arranged in the first direction, and

each of the second wire pieces is not connected to the first wire, the second wire, and the connecting portion.

20. The detection device according to claim 19, wherein the detection electrode further includes a third wire adjacent to the first wire,

the third wire is connected to the connecting portion,

the first wire is between the third wire and the second wire pieces,

third wire pieces are located at an opposite side of the third wire from the first wire, and,

each of the third wire pieces is not connected to the first to third wires, the connecting portion, and the second wire pieces.