Conductive sheet, method for using conductive sheet, and capacitive touch panel
First Claim
Patent Images
1. A conductive sheet comprising a substrate, a first conductive part formed on one main surface of the substrate, and a second conductive part formed on the other main surface of the substrate, whereinthe 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 sense pads connected in series in the first direction,the second conductive patterns each contain two or more second sense pads connected in series in the second direction,the first sense pads and the second sense pads each contain a combination of two or more small lattices,the thin metal wire has a line width of 1 to 15 μ
- m,the small lattices have a side length of 50 to 500 μ
M, the first conductive part further contains an electrically isolated first insulation between the first conductive patterns,the second conductive part further contains an electrically isolated second insulation between the second conductive patterns,the first conductive patterns and the second conductive patterns are crossed to form an arrangement of a large number of lattices as viewed from above,the first insulation and the second insulation overlap with each other to form a combined pattern between the first conductive patterns and the second conductive patterns, andthe combined pattern contains an opening having the same size as two or more of the lattices arranged.
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Abstract
A conductive Sheet, a method for using conductive sheet, and a capacitive touch panel are provided. A first conductive sheet contains two or more conductive first sense pads and a first connection for electrically connecting the adjacent first sense pads on a first transparent substrate. The first sense pads each contain a combination of two or more small lattices, the first connection contains one or more medium lattices (a first medium lattice to a fourth medium lattice), and the pitch of the medium lattices is n times larger than that of the small lattices (in which n is a real number larger than 1).
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Citations
10 Claims
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1. A conductive sheet comprising a substrate, a first conductive part formed on one main surface of the substrate, and a second conductive part formed on the other main surface of the substrate, wherein
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 sense pads connected in series in the first direction, the second conductive patterns each contain two or more second sense pads connected in series in the second direction, the first sense pads and the second sense pads each contain a combination of two or more small lattices, the thin metal wire has a line width of 1 to 15 μ - m,
the small lattices have a side length of 50 to 500 μ
M, the first conductive part further contains an electrically isolated first insulation between the first conductive patterns,the second conductive part further contains an electrically isolated second insulation between the second conductive patterns, the first conductive patterns and the second conductive patterns are crossed to form an arrangement of a large number of lattices as viewed from above, the first insulation and the second insulation overlap with each other to form a combined pattern between the first conductive patterns and the second conductive patterns, and the combined pattern contains an opening having the same size as two or more of the lattices arranged. - View Dependent Claims (2)
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3. A conductive sheet comprising a substrate, a first conductive part formed on one main surface of the substrate, and a second conductive part formed on the other main surface of the substrate, wherein
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 sense pads connected in series in the first direction, the second conductive patterns each contain two or more second sense pads connected in series in the second direction, the first sense pads and the second sense pads each contain a combination of two or more small lattices, the thin metal wire has a line width of 1 to 15 μ - m,
the small lattices have a side length of 50 to 500 μ
m,the adjacent first sense pads are electrically connected by a first connection, the adjacent second sense pads are electrically connected by a second connection, the first connection and the second connection each contain one or more medium lattices, a pitch of the medium lattices is n times larger than that of the small lattices (in which n is a real number larger than
1),the first conductive part further contains an electrically isolated first insulation between the first conductive patterns, the second conductive part further contains an electrically isolated second insulation between the second conductive patterns, the first conductive patterns and the second conductive patterns are crossed to form an arrangement of a large number of lattices as viewed from above, the first insulation and the second insulation overlap with each other to form a combined pattern between the first conductive patterns and the second conductive patterns, and the combined pattern contains an opening having the same size as the medium lattice.
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4. A conductive sheet comprising a substrate, a first conductive part formed on one main surface of the substrate, and a second conductive part formed on the other main surface of the substrate, wherein
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 sense pads connected in series in the first direction, the second conductive patterns each contain two or more second sense pads connected in series in the second direction, the first sense pads and the second sense pads each contain a combination of two or more small lattices, the thin metal wire has a line width of 1 to 15 μ - m,
the small lattices have a side length of 50 to 500 μ
m,the first conductive part further contains an electrically isolated first insulation between the first conductive patterns, the second conductive part further contains an electrically isolated second insulation between the second conductive patterns, the first conductive patterns and the second conductive patterns are crossed to form an arrangement of a large number of lattices as viewed from above, the first insulation and the second insulation overlap with each other to form a combined pattern between the first conductive patterns and the second conductive patterns, and the combined pattern contains an opening having the same size as a plurality of the small lattices arranged in an approximately cross shape.
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5. A conductive sheet comprising a substrate, a first conductive part formed on one main surface of the substrate, and a second conductive part formed on the other main surface of the substrate, wherein
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 sense pads connected in series in the first direction, the second conductive patterns each contain two or more second sense pads connected in series in the second direction, the first sense pads and the second sense pads each contain a combination of two or more small lattices, the thin metal wire has a line width of 1 to 15 μ - m,
the small lattices have a side length of 50 to 500 μ
m,a large number of needle-like lines extend from a continuous straight line to form a comb-like shape along a first side of the first sense pad, a continuous straight line is formed along a second side of the first sense pad facing the first side, a continuous straight line is formed along a third side of the second sense pad facing the first side of the first sense pad, and a large number of needle-like lines extend from a continuous straight line to form a comb-like shape along a fourth side of the second sense pad facing the second side of the first sense pad.
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6. A conductive sheet comprising a substrate, a first conductive part formed on one main surface of the substrate, and a second conductive part formed on the other main surface of the substrate, wherein
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 sense pads connected in series in the first direction, the second conductive patterns each contain two or more second sense pads connected in series in the second direction, the first sense pads and the second sense pads each contain a combination of two or more small lattices, the thin metal wire has a line width of 1 to 15 μ - m,
the small lattices have a side length of 50 to 500 μ
m,the first conductive part further contains a plurality of first insulations containing a first auxiliary line composed of a thin metal wire between the first conductive patterns, the second conductive part further contains a plurality of second insulations containing a second auxiliary line composed of a thin metal wire between the second conductive patterns, the first conductive patterns and the second conductive patterns are crossed as viewed from above, the first insulation and the second insulation overlap with each other to form a combined pattern between the first conductive patterns and the second conductive patterns, the combined pattern has the first auxiliary line and the second auxiliary line crossed which do not overlap with the first conductive patterns and the second conductive patterns, the first auxiliary line is a straight line separated from the first sense pads, and the second auxiliary line is a straight line separated from the second sense pads. - View Dependent Claims (7, 8, 9)
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10. A touch panel comprising a conductive sheet placed on a display panel of a display device, wherein
the conductive sheet comprising a substrate, a first conductive part formed on one main surface of the substrate, and a second conductive part formed on the other main surface of the substrate, wherein 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 sense pads connected in series in the first direction, the second conductive patterns each contain two or more second sense pads connected in series in the second direction, the first sense pads and the second sense pads each contain a combination of two or more small lattices, the thin metal wire has a line width of 1 to 15 μ - m,
the small lattices have a side length of 50 to 500 μ
m,the first conductive part further contains an electrically isolated first insulation between the first conductive patterns, the second conductive part further contains an electrically isolated second insulation between the second conductive patterns, the first conductive patterns and the second conductive patterns are crossed to form an arrangement of a large number of lattices as viewed from above, the first insulation and the second insulation overlap with each other to form a combined pattern between the first conductive patterns and the second conductive patterns, and the combined pattern contains an opening having the same size as two or more of the lattices arranged.
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Specification
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Current AssigneeFujifilm Corporation (Fujifilm Holdings Corporation)
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Original AssigneeFujifilm Corporation (Fujifilm Holdings Corporation)
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InventorsKuriki, Tadashi
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Primary Examiner(s)Thompson, Timothy
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Assistant Examiner(s)PATEL, AMOL H
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Application NumberUS13/458,240Publication NumberTime in Patent Office795 DaysField of Search174/250, 174/255, 174/261US Class Current174/261CPC Class CodesG06F 2203/04112 Electrode mesh in capacitiv...G06F 3/0412 Digitisers structurally int...G06F 3/0445 using two or more layers of...G06F 3/0446 using a grid-like structure...
