Conductive component and conductive component for touch panel

• US 10,268,330 B2
• Filed: 07/18/2018
• Issued: 04/23/2019
• Est. Priority Date: 01/28/2010
• Status: Active Grant

• Current Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Original Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Inventors: Kuriki, Tadashi
• Primary Examiner(s): Pervan, Michael
• Application Number:
  US16/038,631
• Publication Number:
  US 20180321774A1
• Time in Patent Office: 279 Days
• Field of Search: 178 1801- 1907, 345173-178
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• 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 3/0445 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 3/047 using sets of wires, e.g. crossed wires
• CPC Class Codes: H03K 17/9622 using a plurality of detectors, e.g. keyboard
• CPC Class Codes: H03K 2017/9613 using two electrodes per touch switch
• CPC Class Codes: H03K 2217/960755 Constructional details of capacitive touch and proximity switches

Abstract

A conductive component including two or more conductive first and second large lattices composed of a thin metal wire, wherein the first and second large lattices each contain a combination of two or more small lattices, a first unconnected pattern composed of a thin metal wire separated from the first and second large lattices is formed around a side of the first large lattices, a second unconnected pattern composed of a thin metal wire separated from the first and second large lattices is formed around a side of the second large lattices, the first large lattices are arranged adjacent to the second large lattices as viewed from above, the first and second unconnected patterns overlap with each other to form a combined pattern between the first and second large lattices as viewed from above, and the combined pattern contains a combination of two or more of the small lattices.

Claims

1. A conductive component comprising:

two or more conductive first large lattices composed of a thin metal wire and

two or more conductive second large lattices composed of a thin metal wire,

wherein the first large lattices and the second large lattices each contain a combination of two or more small lattices,

a first unconnected pattern composed of a thin metal wire separated from the first large lattices and the second large lattices is formed around a side of the first large lattices,

a second unconnected pattern composed of a thin metal wire separated from the first large lattices and the second large lattices is formed around a side of the second large lattices,

the first large lattices are arranged adjacent to the second large lattices as viewed from above,

the first unconnected pattern and the second unconnected pattern overlap with each other to form a combined pattern between the first large lattices and the second large lattices as viewed from above, and

the combined pattern contains a combination of two or more of the small lattices.

2. The conductive component according to claim 1, wherein the projected distance (Lf) between straight lines of the side of the first large lattices and the side of the second large lattices is selected based on a size of the small lattices.

3. The conductive component according to claim 1, wherein

when a width of the combined pattern is defined as the shortest distance between the side of the first large lattices and the side of the second large lattices, the sides being opposite to each other,

the width of the combined pattern is equal to or larger than a side length of the small lattices.

4. The conductive component according to claim 3, wherein the width of the combined pattern is 2 to 10 times larger than the side length of the small lattices.

5. The conductive component according to claim 1, wherein

the first unconnected pattern is shaped such that a part of the small lattice is removed to provide a remaining part and two or more of the remaining parts are arranged along the side of the first large lattices, and

the second unconnected pattern is shaped such that a part of the small lattice is removed to provide a remaining part and two or more of the remaining parts are arranged along the side of the second large lattices.

6. The conductive component according to claim 5, wherein the small lattice has a square shape, and

each of the first unconnected pattern and the second unconnected pattern are shaped such that one side of the small lattice is removed to provide the remaining part and two or more of the remaining parts are arranged.

7. The conductive component according to claim 1, wherein

a first connection composed of a thin metal wire to electrically connect adjacent first large lattices,

a second connection composed of a thin metal wire to electrically connect adjacent second large lattices,

two or more of the first large lattices are arranged in a first direction with the first connection disposed therebetween to form a first conductive pattern,

two or more of the second large lattices are arranged in a second direction perpendicular to the first direction with the second connection disposed therebetween to form a second. conductive pattern,

two or more of the first conductive patterns are arranged in the second direction,

two or more of the second conductive patterns are arranged in the first direction,

the first connection and the second connection are arranged facing each other,

an electrically isolated first insulation is disposed between adjacent first conductive patterns,

an electrically isolated second insulation is disposed between adjacent second conductive patterns,

the first connection and the second connection are arranged facing each other,

the first insulation and the second insulation are arranged facing each other, and

the first connection and the second connection overlap with each other to form a combined pattern containing a combination of two or more of the small lattices.

8. The conductive component according to claim 1, wherein the small lattices have a polygonal shape.

9. The conductive component according to claim 1, wherein the small lattices have at least one curved side.

10. The conductive component according to claim 1, wherein the small lattices have at least one arc-shaped side.

11. A conductive component according comprising:

two or more conductive first large lattices composed of a thin metal wire; and

two or more conductive second large lattices composed of a thin metal wire,

wherein the first large lattices and the second large lattices each contain a combination of two or more small lattices,

a first unconnected pattern composed of a thin metal wire separated from the first large lattices is formed around a side of the first large lattices,

a second unconnected pattern composed of a thin metal wire separated from the second large lattices is formed around a side of the second large lattices;

the first large lattices are arranged adjacent to the second large lattices as viewed from above,

the first unconnected pattern and the second unconnected pattern overlap with each other to form a combined pattern between the first large lattices and the second large lattices as viewed from above, and

the combined pattern contains a combination of two or more of the small lattices;

wherein a first connection composed of a thin metal wire electrically connects adjacent first large lattices,

a second connection composed of a thin metal wire electrically connects adjacent second large lattices,

two or more of the first large lattices are arranged in a first direction with the first connection disposed therebetween to form a first conductive pattern,

two or more of the second large lattices are arranged in a second direction perpendicular to the first direction with the second connection disposed therebetween to form a second conductive pattern,

two or more of the first conductive patterns are arranged in the second direction,

two or more of the second conductive patterns are arranged in the first direction,

the first connection and the second connection are arranged facing each other;

an electrically isolated first insulation is disposed between adjacent first conductive patterns,

an electrically isolated second insulation is disposed between adjacent second conductive patterns,

the first insulation and the second insulation are arranged facing each other, and

the first connection and the second connection overlap with each other to form a combined pattern containing a combination of two or more of the small lattices;

wherein the first insulation has a first insulation pattern composed of a thin metal wire separated from the first large lattices,

the second insulation has a second insulation pattern composed of a thin metal wire separated from the second large lattices, and

the first insulation and the second insulation overlap with each other, whereby the first insulation pattern and the second insulation pattern form a combined pattern containing a combination of two or more of the small lattices.

12. The conductive component according to claim 11, wherein

the first insulation pattern has an assembly portion containing two or more of the small lattices arranged, and

the second insulation pattern has a space corresponding to the assembly portion.

13. The conductive component according to claim 11, wherein

the first insulation pattern has a wavy line formed by continuously arranging two sides of the small lattice,

the second insulation pattern has a wavy line formed by continuously arranging two sides of the small lattice, and

the wavy lines have patterns opposite to each other.

14. A conductive component according comprising:

two or more conductive first large lattices composed of a thin metal wire; and

two or more conductive second large lattices composed of a thin metal wire,

wherein the first large lattices and the second large lattices each contain a combination of two or more small lattices,

a first unconnected pattern composed of a thin metal wire separated from the first large lattices is formed around a side of the first large lattices,

a second unconnected pattern composed of a thin metal wire separated from the second large lattices is formed around a side of the second large lattices;

the first large lattices are arranged adjacent to the second large lattices as viewed from above,

the first unconnected pattern and the second unconnected pattern overlap with each other to form a combined pattern between the first large lattices and the second large lattices as viewed from above, and

the combined pattern contains a combination of two or more of the small lattices;

wherein a first connection composed of a thin metal wire electrically connects adjacent first large lattices,

a second connection composed of a thin metal wire electrically connects adjacent second large lattices,

two or more of the first large lattices are arranged in a first direction with the first connection disposed therebetween to forte a first conductive pattern,

two or more of the second large lattices are arranged in a second direction perpendicular to the first direction with the second connection disposed therebetween to form a second conductive pattern,

two or more of the first conductive patterns are arranged in the second direction,

two or more of the second conductive patterns are arranged in the first direction,

the first connection and the second connection are arranged facing each other;

an electrically isolated first insulation is disposed between adjacent first conductive patterns,

an electrically isolated second insulation is disposed between adjacent second conductive patterns,

the first insulation and the second insulation are arranged facing each other, and

the first connection and the second connection overlap with each other to form a combined pattern containing a combination of two or more of the small lattices;

wherein when a small lattices have an arrangement pitch of P and a width of the first insulation is defined as a shortest distance between the adjacent first conductive patterns, the width of the first insulation is mxP (in which m is an integer of 1 or more) and a maximum length of the first insulation pattern is mxP or less in a width direction of the first insulation, and

when a width of the second insulation is defined as a shortest distance between the adjacent second conductive patterns, the width of the second insulation is nxP (in which n is an integer of 1 or more) and a maximum length of the second insulation pattern is nxP or less in the width direction of the second insulation.

15. A conductive component for a touch panel to be placed on a display panel of a display device, comprising a first conductive component and a second conductive component, wherein

the first conductive component contains a first conductive part,

the second conductive component contains a second conductive part,

the first conductive component and the second conductive component are facing each other,

the first conductive part contains two or more first conductive patterns composed of a thin metal wire,

the first conductive patterns each extend in a first direction and are arranged in a second direction perpendicular to the first direction,

the second conductive part contains two or more second conductive patterns composed of a thin metal wire,

the second conductive patterns each extend in the second direction and are arranged in the first direction,

the first conductive patterns each contain two or more first large lattices arranged in the first direction,

the second conductive patterns each contain two or more second large lattices arranged in the second direction,

a first unconnected pattern composed of a thin metal wire separated from the first large lattices and the second large lattices is formed around a side of the first large lattices,

a second unconnected pattern composed of a thin metal wire separated from the first large lattices and the second large lattices is formed around a side of the second large lattices,

the first large lattices are arranged adjacent to the second large lattices as viewed from above,

the first unconnected pattern and the second unconnected pattern overlap with each other to form a combined pattern between the first large lattices and the second large lattices, and

the combined pattern contains a combination of two or more small lattices.

16. The conductive component according to claim 15, wherein

the first conductive part further contains first terminal wiring patterns each connected to an end of the first conductive pattern and a plurality of first terminals each connected to the corresponding first terminal wiring pattern,

the first terminals are formed in a longitudinal center of a side of the first conductive component,

the second conductive part further contains second terminal wiring patterns each connected to an end of the second conductive pattern and a plurality of second terminals each connected to the corresponding second terminal wiring pattern, and

the second terminals are formed in a longitudinal center of a side of the second conductive component.

17. The conductive component according to claim 16, wherein an arrangement of a plurality of the first terminals is adjacent to an arrangement of a plurality of the second terminals in the first conductive component and the second conductive component as viewed from above.

18. The conductive component according to claim 16, wherein

the first terminal wiring patterns are each connected to the end of the corresponding first conductive pattern by a first wire connection,

the second terminal wiring patterns are each connected to the end of the corresponding second conductive pattern by a second wire connection,

a plurality of the first wire connections are arranged in a straight line along the second direction, and

a plurality of the second wire connections are arranged in a straight line along the first direction.

19. A conductive component for touch panel comprising:

a first conductive component including two or more conductive first large lattices composed of a thin metal wire; and

a second conductive component including two or more conductive second large lattices composed of a thin metal wire,

wherein the conductive component for touch panel is formed with the first conductive component and the second conductive component facing each other,

the first large lattices and the second large lattices each contain a combination of two or more small lattices,

a first unconnected pattern composed of a thin metal wire separated from the first large lattices and the second large lattices is formed around a side of the first large lattices,

a second unconnected pattern composed of a thin metal wire separated from the first large lattices and the second large lattices is formed around a side of the second large lattices,

the first large lattices are arranged adjacent to the second large lattices as viewed from above,

the first unconnected pattern and the second unconnected pattern overlap with each other to form a combined pattern between the first large lattices and the second large lattices, and

the combined pattern has a pattern approximately equal to inner patterns of the first large lattices and the second large lattices.

20. The conductive component for touch panel according to claim 19, wherein the thin metal wire has a line width of 15 μ

m or less.

21. A conductive component for touch panel comprising:

a first conductive component including two or more conductive first large lattices composed of a thin metal wire; and

a second conductive component including two or more conductive second large lattices composed of a thin metal wire,

wherein the conductive component for touch panel is formed with the first conductive component and the second conductive component facing each other,

the first large lattices and the second large lattices each contain a combination of two or more small lattices,

a first unconnected pattern composed of a thin metal wire separated from the first large lattices and the second large lattices is formed around a side of the first large lattices,

a second unconnected pattern composed of a thin metal wire separated from the first large lattices and the second large lattices is formed around a side of the second large lattices,

the first large lattices are arranged adjacent to the second large lattices as viewed from above,

the first unconnected pattern and the second unconnected pattern overlap with each other to form a combined pattern between the first large lattices and the second large lattices, and

the combined pattern contains a combination of two or more small lattices.

22. The conductive component for touch panel according to claim 21, wherein the thin metal wire has a line width of 15 μ

m or less.