Input device detecting both of position and applied weight
First Claim
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1. An input device comprising:
- a base having a first surface and a second surface opposite to the first surface;
a position detection part provided on the first surface of the base, the position detection part having a plurality detection electrodes, the plurality of detection electrodes including;
a plurality of first electrodes extending in a first direction, each of the first electrodes including;
a plurality of first island-shaped electrode parts; and
a plurality of linkage parts each connecting adjacent two of the first island-shaped electrode parts; and
a plurality of second electrodes extending in a second direction crossing the first direction, each of the second electrodes including;
a plurality of second island-shaped electrode parts; and
a plurality of bridge wiring portions each connecting adjacent two of the second island-shaped electrode parts and crossing corresponding one of the linkage parts of the first electrodes;
at least one load detection wire provided in the position detection part between the plurality of first detection electrodes so as to cross the bridge wiring portions, an electric resistance value of the load detection wire changing depending on a pressure applied thereto; and
an island-shaped insulating part provided in each intersection in which the bridge wiring portion crosses the corresponding linkage part and the load detection wire, the island-shaped insulating part electrically insulating the bridge wiring portion from the linkage part and the load detection wire,wherein in an area of the position detection part where the island-shaped insulating part is not provided, the load detection wire, the plurality of first island-shaped electrode parts, and the plurality of second island-shaped electrode parts are formed in a same first layer on the first surface, and, when viewed from above the base, the load detection wire is disposed between one of the first island-shaped electrode parts and one of the second island-shaped electrode parts which is adjacent to the one of the first island-shaped electrode parts such that the load detection wire does not cross the second island-shaped electrode parts,wherein in each intersection, when viewed from above the base, the load detection wire is disposed between the first island-shaped electrode part and the second island-shaped electrode part such that the load detection wire does not cross the second island-shaped electrode part while the load detection wire crosses the island-shaped insulating part,and wherein the island-shaped insulating part in each intersection provides a protrusion formed from one of the adjacent two of the second island-shaped electrode parts to the other of the adjacent two of the second island-shaped electrode parts across the corresponding linkage part and the load detection wire disposed between the adjacent two of the second island-shaped electrode parts, the protrusion protruding from the first surface above the same first layer in which the first island-shaped electrode parts and the second island-shaped electrode parts are formed.
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Abstract
As an input device that can detect both a position and an applied weight and has a thin thickness and improved waterproof and dustproof performance, an input device is provided that has a position detection part provided on a base material, the position detection part having a plurality detection electrodes, and also has a load detection wire provided among the plurality of detection electrodes in the position detection part, the electric resistance value of the load detection wire changing depending on pressure. In the input device, the plurality of detection electrodes may have first electrodes and second electrodes that both extend in mutually intersecting directions, each first electrode may have a bridge wiring part provided at an intersection position between the first electrode and the second electrode, and the load detection wire may be provided so as to intersect the bridge wire.
8 Citations
21 Claims
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1. An input device comprising:
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a base having a first surface and a second surface opposite to the first surface; a position detection part provided on the first surface of the base, the position detection part having a plurality detection electrodes, the plurality of detection electrodes including; a plurality of first electrodes extending in a first direction, each of the first electrodes including; a plurality of first island-shaped electrode parts; and a plurality of linkage parts each connecting adjacent two of the first island-shaped electrode parts; and a plurality of second electrodes extending in a second direction crossing the first direction, each of the second electrodes including; a plurality of second island-shaped electrode parts; and a plurality of bridge wiring portions each connecting adjacent two of the second island-shaped electrode parts and crossing corresponding one of the linkage parts of the first electrodes; at least one load detection wire provided in the position detection part between the plurality of first detection electrodes so as to cross the bridge wiring portions, an electric resistance value of the load detection wire changing depending on a pressure applied thereto; and an island-shaped insulating part provided in each intersection in which the bridge wiring portion crosses the corresponding linkage part and the load detection wire, the island-shaped insulating part electrically insulating the bridge wiring portion from the linkage part and the load detection wire, wherein in an area of the position detection part where the island-shaped insulating part is not provided, the load detection wire, the plurality of first island-shaped electrode parts, and the plurality of second island-shaped electrode parts are formed in a same first layer on the first surface, and, when viewed from above the base, the load detection wire is disposed between one of the first island-shaped electrode parts and one of the second island-shaped electrode parts which is adjacent to the one of the first island-shaped electrode parts such that the load detection wire does not cross the second island-shaped electrode parts, wherein in each intersection, when viewed from above the base, the load detection wire is disposed between the first island-shaped electrode part and the second island-shaped electrode part such that the load detection wire does not cross the second island-shaped electrode part while the load detection wire crosses the island-shaped insulating part, and wherein the island-shaped insulating part in each intersection provides a protrusion formed from one of the adjacent two of the second island-shaped electrode parts to the other of the adjacent two of the second island-shaped electrode parts across the corresponding linkage part and the load detection wire disposed between the adjacent two of the second island-shaped electrode parts, the protrusion protruding from the first surface above the same first layer in which the first island-shaped electrode parts and the second island-shaped electrode parts are formed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An input device comprising:
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a base having a first surface and a second surface opposite to the first surface; a position detection part provided on the first surface of the base, the position detection part having a plurality detection electrodes, the plurality of detection electrodes including; a plurality of first electrodes extending in a first direction; and a plurality of second electrodes extending in a second direction crossing the first direction, each of the second electrodes including; a plurality of second island-shaped electrode parts; and a plurality of bridge wiring portions each connecting adjacent two of the second island-shaped electrode parts and crossing corresponding one of the first electrodes; an island-shaped insulating part provided in each intersection in which the bridge wiring portion crosses the first electrode; at least one load detection wire provided in the position detection part between the plurality of first detection electrodes, an electric resistance value of the load detection wire changing depending on a pressure applied thereto; and wherein in an area of the position detection part where the island-shaped insulating part is not provided, the load detection wire, the plurality of first electrodes, and the plurality of second island-shaped electrode parts are formed in a same first layer on the first surface, and, when viewed from above the base, the load detection wire is disposed between one of the plurality of first electrodes and the second island-shaped electrode parts which are adjacent to the one of the plurality of first electrodes such that the load detection wire does not cross the second island-shaped electrode parts, wherein, in each intersection, when viewed from above the base, the load detection wire is disposed between the first electrode and the second island-shaped electrode part such that the load detection wire does not cross the second island-shaped electrode part, while the load detection wire crosses the island-shaped insulating part, whereby the island-shaped insulating part provides a protrusion protruding from the first surface above the same first layer in which the first electrodes and the second island-shaped electrode parts are formed. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. An input device comprising:
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a base having a first surface and a second surface opposite to the first surface; a position detection part provided on the first surface of the base, the position detection part having a plurality detection electrodes, the plurality of detection electrodes including; a plurality of first electrodes extending in a first direction; and a plurality of second electrodes extending in a second direction crossing the first direction, each of the second electrodes including; a plurality of second island-shaped electrode parts; and a plurality of bridge wiring portions each connecting adjacent two of the second island-shaped electrode parts and crossing corresponding one of the first electrodes; an island-shaped insulating part provided in each intersection in which the bridge wiring portion crosses the first electrode; at least one load detection wire provided in the position detection part between the plurality of first detection electrodes, an electric resistance value of the load detection wire changing depending on a pressure applied thereto, wherein in an area of the position detection part where the island-shaped insulating part is not provided, the load detection wire, the plurality of first electrodes, and the plurality of second island-shaped electrode parts are formed in a same first layer on the first surface, and, when viewed from above the base, the load detection wire is disposed between one of the plurality of first electrodes and the second island-shaped electrode parts which is adjacent to the one of the plurality of first electrodes such that the load detection wire does not cross the second island-shaped electrode parts, wherein, in each intersection, when viewed from above the base, the load detection wire is disposed between the first electrode and the second island-shaped electrode part such that the load detection wire does not cross the second island-shaped electrode part, while the load detection wire crosses the island-shaped insulating part, whereby the island-shaped insulating part provides a protrusion protruding from the first surface above the first layer in which the first electrodes and the second island-shaped electrode parts are formed, wherein each load detection wire includes; a plurality of first wiring portions; and a plurality of second wiring portions each provided between and connecting to adjacent two of the plurality of first wiring portions, and wherein, in each intersection, when viewed from above the base, the second wiring portion connects to and overlaps with the first wiring portion at positions crossing the island-shaped insulating part. - View Dependent Claims (18, 19, 20, 21)
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Specification
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Current AssigneeAlps Alpine Co., Ltd.
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Original AssigneeAlps Alpine Co., Ltd.
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InventorsMogi, Toshiyuki, Asano, Isao
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Primary Examiner(s)Blancha, Jonathan M
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Application NumberUS15/814,218Publication NumberTime in Patent Office727 DaysField of Search345174US Class CurrentCPC Class CodesG06F 2203/04103 Manufacturing, i.e. details...G06F 2203/04105 Pressure sensors for measur...G06F 2203/04111 Cross over in capacitive di...G06F 3/0443 using a single layer of sen...G06F 3/0446 using a grid-like structure...
