Detection device including conductive thin wires and display device including the detection device
First Claim
1. A detection device, comprising:
- a substrate;
a detection electrode that is disposed on a plane parallel to a surface of the substrate and that includes a plurality of conductive thin wires and a plurality of electrical coupling portions disposed where the conductive thin wires intersect with each other or are bent, and are coupled with each other, the conductive thin wires being arranged in a mesh-like form;
a coupling wire that couples the conductive thin wires with a detecting unit at an end portion of the detection electrode; and
a protective layer that is made of an insulation material and that covers the detection electrode and the coupling wire,wherein an area density of the conductive thin wires per unit area is smaller in an end region ranging from an electrical coupling portion closest to the coupling wire to the coupling wire than in a region of the entire detection electrode, andwherein an area surrounded by the coupling wire and the conductive thin wires is larger than an area obtained by multiplying a square of an estimation radius estimated from a concavo-convex portion at an edge of the protective layer by a circumference ratio.
1 Assignment
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Accused Products
Abstract
According to an aspect, a detection device includes: a substrate; a detection electrode disposed on a plane parallel to a surface of the substrate and including conductive thin wires and electrical coupling portions disposed where the conductive thin wires intersect with each other or are bent, and are coupled with each other, the conductive thin wires being arranged in a mesh-like form; a coupling wire that couples the conductive thin wires with a detecting unit at an end portion of the detection electrode; and a protective layer that is made of an insulation material and that covers the detection electrode and the coupling wire. An area density of the conductive thin wires per unit area is smaller in an end region ranging from an electrical coupling portion closest to the coupling wire to the coupling wire than in a region of the entire detection electrode.
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Citations
20 Claims
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1. A detection device, comprising:
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a substrate; a detection electrode that is disposed on a plane parallel to a surface of the substrate and that includes a plurality of conductive thin wires and a plurality of electrical coupling portions disposed where the conductive thin wires intersect with each other or are bent, and are coupled with each other, the conductive thin wires being arranged in a mesh-like form; a coupling wire that couples the conductive thin wires with a detecting unit at an end portion of the detection electrode; and a protective layer that is made of an insulation material and that covers the detection electrode and the coupling wire, wherein an area density of the conductive thin wires per unit area is smaller in an end region ranging from an electrical coupling portion closest to the coupling wire to the coupling wire than in a region of the entire detection electrode, and wherein an area surrounded by the coupling wire and the conductive thin wires is larger than an area obtained by multiplying a square of an estimation radius estimated from a concavo-convex portion at an edge of the protective layer by a circumference ratio.
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2. A detection device, comprising:
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a substrate; a detection electrode that is disposed on a plane parallel to a surface of the substrate and that includes a plurality of conductive thin wires and a plurality of electrical coupling portions disposed where the conductive thin wires intersect with each other or are bent, and are coupled with each other, the conductive thin wires being arranged in a mesh-like form; a coupling wire that couples the conductive thin wires with a detecting unit at an end portion of the detection electrode; a protective layer that is made of an insulation material and that covers the detection electrode and the coupling wire; and a dummy electrode not functioning as the detection electrode, the dummy electrode being arranged apart from the conductive thin wires and between the conductive thin wires on a plane parallel to the surface of the substrate in the same layer as that of the conductive thin wires, wherein an area density of the conductive thin wires per unit area is smaller in an end region ranging from an electrical coupling portion closest to the coupling wire to the coupling wire than in a region of the entire detection electrode. - View Dependent Claims (3, 4, 5, 6, 7, 8)
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9. A detection device, comprising:
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a substrate; a detection electrode that is disposed on a plane parallel to a surface of the substrate and that includes a plurality of conductive thin wires and a plurality of electrical coupling portions disposed where the conductive thin wires intersect with each other or are bent, and are coupled with each other, the conductive thin wires being arranged in a mesh-like form; a coupling wire that couples the conductive thin wires with a detecting unit at an end portion of the detection electrode; a protective layer that is made of an insulation material and that covers the detection electrode and the coupling wire; a plurality of small electrode portions each including the conductive thin wires and arranged in an island form; and a conductive bridge portion that is stacked in a layer different from that of the small electrode portions and that is coupled with the small electrode portions adjacent to each other, wherein the bridge portion is covered with an insulation material and includes a convex portion in a planar view, and wherein an area density of the conductive thin wires per unit area is smaller in an end region ranging from an electrical coupling portion closest to the coupling wire to the coupling wire than in a region of the entire detection electrode. - View Dependent Claims (10)
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11. A detection device, comprising:
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a substrate; a detection electrode that is disposed on a plane parallel to a surface of the substrate and includes a plurality of conductive thin wires arranged in a mesh-like form; a coupling wire that couples the conductive thin wires with a detecting unit; and a protective layer that is made of an insulation material and that covers the detection electrode and the coupling wire, wherein an area surrounded by the coupling wire and the conductive thin wires is larger than an area surrounded by a single mesh of the detection electrode, and wherein the area surrounded by the coupling wire and the conductive thin wires is larger than an area obtained by multiplying a square of an estimation radius estimated from a concavo-convex portion at an edge of the protective layer by a circumference ratio.
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12. A detection device, comprising:
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a substrate; a detection electrode that is disposed on a plane parallel to a surface of the substrate and includes a plurality of conductive thin wires arranged in a mesh-like form; a coupling wire that couples the conductive thin wires with a detecting unit; a protective layer that is made of an insulation material and that covers the detection electrode and the coupling wire; and a dummy electrode not functioning as the detection electrode, the dummy electrode being arranged apart from the conductive thin wires and between the conductive thin wires on a plane parallel to the surface of the substrate in the same layer as that of the conductive thin wires, wherein an area surrounded by the coupling wire and the conductive thin wires is larger than an area surrounded by a single mesh of the detection electrode. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A detection device, comprising:
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a substrate; a detection electrode that is disposed on a plane parallel to a surface of the substrate and includes a plurality of conductive thin wires arranged in a mesh-like form; a coupling wire that couples the conductive thin wires with a detecting unit; a protective layer that is made of an insulation material and that covers the detection electrode and the coupling wire; a plurality of small electrode portions each including the conductive thin wires and arranged in an island form; and a conductive bridge portion that is stacked in a layer different from that of the small electrode portions and that is coupled with the small electrode portions adjacent to each other, wherein the bridge portion is covered with an insulation material and includes a convex portion in a planar view, and wherein an area surrounded by the coupling wire and the conductive thin wires is larger than an area surrounded by a single mesh of the detection electrode. - View Dependent Claims (20)
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Specification