Conductive sheet, touch panel, display device, method for producing said conductive sheet, and non-transitory recording medium
First Claim
Patent Images
1. A conductive sheet comprising:
- a substrate;
a first conductive portion formed on one main surface of the substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 15 μ
m and are formed from a non-transparent material;
a first protective layer disposed on the one main surface in covering relation to the first conductive portion;
a second conductive portion formed on another main surface of the substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 15 μ
m and are formed from a non-transparent material;
a second protective layer disposed on the other main surface in covering relation to the second conductive portion;
a first adhesive layer disposed between the one main surface and the first protective layer; and
a second adhesive layer disposed between the another main surface and the second protective layer,wherein at least one of a relative index of refraction of the substrate with respect to the first protective layer and a relative index of refraction of the substrate with respect to the second protective layer is 0.86 to 1.15,wherein the first conductive portion comprises a mesh pattern in which different mesh shapes are arranged randomly in plan view,wherein each of the mesh shapes is polygonal,wherein a percentage of polygons having a number of vertices, an occurrence frequency of which is highest in a histogram of the number of vertices in the mesh shapes, is 40% to 70%.
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Accused Products
Abstract
The present invention pertains to: a conductive sheet, a touch panel, a display device, a method for producing the conductive sheet, and a recording medium. In the present invention, the relative refractive index of a substrate with respect to a first protective layer, and/or the relative refractive index of the substrate with respect to a second protective layer is 0.86-1.15. The relative refractive index of a first substrate with respect to the first protective layer, and/or the relative refractive index of a second substrate with respect to the second protective layer is 0.86-1.15.
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Citations
20 Claims
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1. A conductive sheet comprising:
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a substrate; a first conductive portion formed on one main surface of the substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 15 μ
m and are formed from a non-transparent material;a first protective layer disposed on the one main surface in covering relation to the first conductive portion; a second conductive portion formed on another main surface of the substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 15 μ
m and are formed from a non-transparent material;a second protective layer disposed on the other main surface in covering relation to the second conductive portion; a first adhesive layer disposed between the one main surface and the first protective layer; and a second adhesive layer disposed between the another main surface and the second protective layer, wherein at least one of a relative index of refraction of the substrate with respect to the first protective layer and a relative index of refraction of the substrate with respect to the second protective layer is 0.86 to 1.15, wherein the first conductive portion comprises a mesh pattern in which different mesh shapes are arranged randomly in plan view, wherein each of the mesh shapes is polygonal, wherein a percentage of polygons having a number of vertices, an occurrence frequency of which is highest in a histogram of the number of vertices in the mesh shapes, is 40% to 70%. - View Dependent Claims (2, 6, 7)
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3. A touch panel comprising:
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a conductive sheet comprising; a substrate; a first conductive portion formed on one main surface of the substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 15 μ
m and are formed from a non-transparent material;a first protective layer disposed on the one main surface in covering relation to the first conductive portion; a second conductive portion formed on another main surface of the substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 15 μ
m and are formed from a non-transparent material;a second protective layer disposed on the other main surface in covering relation to the second conductive portion; a first adhesive layer disposed between the one main surface and the first protective layer; and a second adhesive layer disposed between the another main surface and the second protective layer, wherein at least one of a relative index of refraction of the substrate with respect to the first protective layer and a relative index of refraction of the substrate with respect to the second protective layer is 0.86 to 1.15, wherein the first conductive portion comprises a mesh pattern in which different mesh shapes are arranged randomly in plan view, wherein each of the mesh shapes is polygonal, wherein the mesh pattern includes a repeating shape, wherein the first conductive portion comprises a plurality of first conductive patterns that extend in a first direction and are arranged in a second direction perpendicular to the first direction, and each of the first conductive patterns is inclined at a predetermined angle with respect to a direction in which the repeating shape is arranged; a detection control unit for detecting a contact position or a proximity position from a side of the one main surface of the conductive sheet.
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4. A display device comprising:
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a conductive sheet comprising; a substrate; a first conductive portion formed on one main surface of the substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 1.5 μ
m and are formed from a non-transparent material;a first protective layer disposed on the one main surface in covering relation to the first conductive portion; a second conductive portion formed on another main surface of the substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 15 μ
m and are formed from a non-transparent material;a second protective layer disposed on the other main surface in covering relation to the second conductive portion; a first adhesive layer disposed between the one main surface and the first protective layer; and a second adhesive layer disposed between the another main surface and the second protective layer, wherein at least one of a relative index of refraction of the substrate with respect to the first protective layer and a relative index of refraction of the substrate with respect to the second protective layer is 0.86 to 1.15, wherein the first conductive portion comprises a mesh pattern in which different mesh shapes are arranged randomly in plan view, wherein each of the mesh shapes is polygonal, wherein the mesh pattern includes a repeating shape, wherein the first conductive portion comprises a plurality of first conductive patterns that extend in a first direction and are arranged in a second direction perpendicular to the first direction, and each of the first conductive patterns is inclined at a predetermined angle with resect to a direction in which the repeating shape is arranged; a detection control unit for detecting a contact position or a proximity position from a side of the one main surface of the conductive sheet; and a display unit that displays an image on a display surface based on a display signal, wherein the another main surface of the conductive sheet is disposed on the display surface in confronting relation to the display unit.
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5. A conductive sheet comprising:
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a substrate; a first conductive portion formed on one main surface of the substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 15 μ
m and are formed from a non-transparent material;a first protective layer disposed on the one main surface in covering relation to the first conductive portion; a second conductive portion formed on another main surface of the substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 15 μ
m and are formed from a non-transparent material;a second protective layer disposed on the other main surface in covering relation to the second conductive portion; a first adhesive layer disposed between the one main surface and the first protective layer; and a second adhesive layer disposed between the another main surface and the second protective layer, wherein at least one of a relative index of refraction of the substrate with respect to the first protective layer and a relative index of refraction of the substrate with respect to the second protective layer is 0.86 to 1.15, wherein the first conductive portion comprises a mesh pattern in which different mesh shapes are arranged randomly in plan view, wherein each of the mesh shapes is polygonal, Wherein the mesh pattern includes a repeating shape, wherein the first conductive portion comprises a plurality of first conductive patterns that extend in a first direction and are arranged in a second direction perpendicular to the first direction, and each of the first conductive patterns is inclined at a predetermined angle with respect to a direction in which the repeating shape is arranged. - View Dependent Claims (20)
a plurality of first conductive patterns that extend in a first direction and are arranged in a second direction perpendicular to the first direction; and a plurality of first dummy patterns disposed in interspatial portions between adjacent ones of the first conductive patterns, and which are insulated electrically from each of the first conductive patterns, wherein a wiring density of the first dummy patterns is equal to a wiring density of the first conductive patterns.
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8. A conductive sheet comprising:
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a first substrate; a first conductive portion formed on one main surface of the substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 15 μ
m and are formed from a non-transparent material;a first protective layer disposed on the one main surface of the first substrate in covering relation to the first conductive portion; a second substrate; a second conductive portion formed on one main surface of the second substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 inn and less than or equal to 15 μ
m and are formed from a non-transparent material; anda second protective layer disposed on the one main surface of the second substrate in covering relation to the second conductive portion; a first adhesive layer disposed between the one main surface of the first substrate and the first protective layer; and a second adhesive layer disposed between the one main surface of the second substrate and the second protective layer, wherein at least one of a relative index of refraction of the first substrate with respect to the first protective layer and a relative index of refraction of the second substrate with respect to the second protective layer is 0.86 to 1.15, wherein the first conductive portion comprises a mesh pattern in which different mesh shapes are arranged randomly in plan view, wherein each of the mesh shapes is polygonal, and wherein a percentage of polygons having a number of vertices, an occurrence frequency of which is highest in a histogram of the number of vertices in the mesh shapes, is 40% to 70%.
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9. A conductive sheet comprising:
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a first substrate; a first conductive portion formed on one main surface of the substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 15 μ
m and are formed from a non-transparent material;a first protective layer disposed on the one main surface of the first substrate in covering relation to the first conductive portion; a second substrate; a second conductive portion formed on one main surface of the second substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 15 μ
m and are formed from a non-transparent material; anda second protective layer disposed on the one main surface of the second substrate in covering relation to the second conductive portion; a first adhesive layer disposed between the one main surface of the first substrate and the first protective layer; and a second adhesive layer disposed between the one main surface of the second substrate and the second protective layer, wherein at least one of a relative index of refraction of the first substrate with respect to the first protective layer and a relative index of refraction of the second substrate with respect to the second protective layer is 0.86 to 1.15, wherein the first conductive portion comprises a mesh pattern in which different mesh shapes are arranged randomly in plan view, wherein each of the mesh shapes is polygonal, wherein the mesh pattern includes a repeating shape, and wherein the first conductive portion comprises a plurality of first conductive patterns that extend in a first direction and are arranged in a second direction perpendicular to the first direction, and each of the first conductive patterns is inclined at a predetermined angle with respect to a direction in which the repeating shape is arranged.
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10. A touch panel comprising:
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a conductive sheet comprising; a first substrate; a first conductive portion formed on one main surface of the substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 15 μ
m and are formed from a non-transparent material;a first protective layer disposed on the one main surface of the first substrate in covering relation to the first conductive portion; a second substrate; a second conductive portion formed on one main surface of the second substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 15 μ
m and are formed from a non-transparent material; anda second protective layer disposed on the one main surface of the second substrate in covering relation to the second conductive portion; a first adhesive layer disposed between the one main surface of the first substrate and the first protective layer; and a second adhesive layer disposed between the one main surface of the second substrate and the second protective layer, wherein at least one of a relative index of refraction of the first substrate with respect to the first protective layer and a relative index of refraction of the second substrate with respect to the second protective layer is 0.86 to 1.15, wherein the first conductive portion comprises a mesh pattern in which different mesh shapes are arranged randomly in plan view, wherein each of the mesh shapes is polygonal, wherein a percentage of polygons having a number of vertices, an occurrence frequency of which is highest in a histogram of the number of vertices in the mesh shapes, is 40% to 70%; and a detection control unit for detecting a contact position or a proximity position from a side of one main surface of the conductive sheet.
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11. A display device comprising:
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a conductive sheet comprising; a first substrate; a first conductive portion formed on one main surface of the substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 15 μ
m and are formed from a non-transparent material;a first protective layer disposed on the one main surface of the first substrate in covering relation to the first conductive portion; a second substrate; a second conductive portion formed on one main surface of the second substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 15 μ
m and are formed from a non-transparent material; anda second protective layer disposed on the one main surface of the second substrate in covering relation to the second conductive portion; a first adhesive layer disposed between the one main surface of the first substrate and the first protective layer; and a second adhesive layer disposed between the one main surface of the second substrate and the second protective layer, wherein at least one of a relative index of refraction of the first substrate with respect to the first protective layer and a relative index of refraction of the second substrate with respect to the second protective layer is 0.86 to 1.15, wherein the first conductive portion comprises a mesh pattern in which different mesh shapes are arranged randomly in plan view, wherein each of the mesh shapes is polygonal, wherein a percentage of polygons having a number of vertices, an occurrence frequency of which is highest in a histogram of the number of vertices in the mesh shapes, is 40% to 70%, and a detection control unit for detecting a contact position or a proximity position from a side of one main surface of the conductive sheet; and a display unit that displays an image on a display surface based on a display signal, wherein another main surface of the conductive sheet is disposed on the display surface in confronting relation to the display unit.
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12. A touch panel comprising:
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a conductive sheet comprising; a first substrate; a first conductive portion formed on one main surface of the substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 15 μ
m and are formed from a non-transparent material;a first protective layer disposed on the one main surface of the first substrate in covering relation to the first conductive portion; a second substrate; a second conductive portion formed on one main surface of the second substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 15 μ
m and are formed from a non-transparent material; anda second protective layer disposed on the one main surface of the second substrate in covering relation to the second conductive portion; a first adhesive layer disposed between the one main surface of the first substrate and the first protective layer; and a second adhesive layer disposed between the one main surface of the second substrate and the second protective layer, wherein at least one of a relative index of refraction of the first substrate with respect to the first protective layer and a relative index of refraction of the second substrate with respect to the second protective layer is 0.86 to 1.15, wherein the first conductive portion comprises a mesh pattern in which different mesh shapes are arranged randomly in plan view, wherein each of the mesh shapes is polygonal, wherein the mesh pattern includes a repeating shape, and wherein the first conductive portion comprises a plurality of first conductive patterns that extend in a first direction and are arranged in a second direction perpendicular to the first direction, and each of the first conductive patterns is inclined at a predetermined angle with respect to a direction in which the repeating shape is arranged; and a detection control unit for detecting a contact position or a proximity position from a side of one main surface of the conductive sheet.
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13. A display device comprising:
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a conductive sheet comprising; a first substrate; a first conductive portion formed on one main surface of the substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 15 μ
m and are formed from a non-transparent material;a first protective layer disposed on the one main surface of the first substrate in covering relation to the first conductive portion; a second substrate; a second conductive portion formed on one main surface of the second substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 15 μ
m and are formed from a non-transparent material; anda second protective layer disposed on the one main surface of the second substrate in covering relation to the second conductive portion; a first adhesive layer disposed between the one main surface of the first substrate and the first protective layer; and a second adhesive layer disposed between the one main surface of the second substrate and the second protective layer, wherein at least one of a relative index of refraction of the first substrate with respect to the first protective layer and a relative index of refraction of the second substrate with respect to the second protective layer is 0.86 to 1.15, wherein the first conductive portion comprises a mesh pattern in which different mesh shapes are arranged randomly in plan view, wherein each of the mesh shapes is polygonal, wherein the mesh pattern includes a repeating shape, and wherein the first conductive portion comprises a plurality of first conductive patterns that extend in a first direction and are arranged in a second direction perpendicular to the first direction, and each of the first conductive patterns is inclined at a predetermined angle with respect to a direction in which the repeating shape is arranged; and a detection control unit for detecting a contact position or a proximity position from a side of one main surface of the conductive sheet; and a display unit that displays an image on a display surface based on a display signal, wherein another main surface of the conductive sheet is disposed on the display surface in confronting relation to the display unit.
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14. A conductive sheet comprising:
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a substrate; a first conductive portion formed on one main surface of the substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 15 μ
m and are formed from a non-transparent material;a first protective layer disposed on the one main surface in covering relation to the first conductive portion; a second conductive portion formed on another main surface of the substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 15 μ
m and are formed from a non-transparent material;a second protective layer disposed on the other main surface in covering relation to the second conductive portion; a first adhesive layer disposed between the one main surface and the first protective layer; and a second adhesive layer disposed between the another main surface and the second protective layer, wherein at least one of a relative index of refraction of the substrate with respect to the first protective layer and a relative index of refraction of the substrate with respect to the second protective layer is 0.86 to 1.15, wherein a rate of change in luminance expressed by 100×
(Lb−
La)/La is 16.5% or more where La denotes luminance of a region that does not form the first protective layer, and Lb denotes luminance of a region that forms the first protective layer, when white light is irradiated onto the conductive sheet. - View Dependent Claims (15, 18, 19)
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16. A touch panel comprising:
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a conductive sheet comprising; a substrate; a first conductive portion formed on one main surface of the substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 15 μ
m and are formed from a non-transparent material;a first protective layer disposed on the one main surface in covering relation to the first conductive portion; a second conductive portion formed on another main surface of the substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 15 μ
m and are formed from a non-transparent material;a second protective layer disposed on the other main surface in covering relation to the second conductive portion; a first adhesive layer disposed between the one main surface and the first protective layer; and a second adhesive layer disposed between the another main surface and the second protective layer, wherein at least one of a relative index of refraction of the substrate with respect to the first protective layer and a relative index of refraction of the substrate with respect to the second protective layer is 0.86 to 1.15, wherein a rate of change in luminance expressed by 100×
(Lb−
La)/La is 16.5% or more where La denotes luminance of a region that does not form the first protective layer, and Lb denotes luminance of a region that forms the first protective layer, when white light is irradiated onto the conductive sheet; anda detection control unit for detecting a contact position or a proximity position from a side of the one main surface of the conductive sheet.
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17. A display device comprising:
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a conductive sheet comprising; a substrate; a first conductive portion formed on one main surface of the substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 15 μ
m and are formed from a non-transparent material;a first protective layer disposed on the one main surface in covering relation to the first conductive portion; a second conductive portion formed on another main surface of the substrate and made up from a plurality of thin metal wires that have a width being greater than or equal to 0.1 μ
m and less than or equal to 15 μ
m and are formed from a non-transparent material;a second protective layer disposed on the other main surface in covering relation to the second conductive portion; a first adhesive layer disposed between the one main surface and the first protective layer; and a second adhesive layer disposed between the another main surface and the second protective layer, wherein at least one of a relative index of refraction of the substrate with respect to the first protective layer and a relative index of refraction of the substrate with respect to the second protective layer is 0.86 to 1.15, wherein a rate of change in luminance expressed by 100×
(Lb−
La)/La is 16.5% or more where La denotes luminance of a region that does not form the first protective layer, and Lb denotes luminance of a region that forms the first protective layer, when white light is irradiated onto the conductive sheet; anda detection control unit for detecting a contact position or a proximity position from a side of the one main surface of the conductive sheet; and a display unit that displays an image on a display surface based on a display signal, wherein the another main surface of the conductive sheet is disposed on the display surface in confronting relation to the display unit.
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Specification