ELECTROSTATIC CAPACITANCE-TYPE INPUT DEVICE, METHOD OF TESTING ELECTROSTATIC CAPACITANCE-TYPE INPUT DEVICE, AND DRIVING DEVICE FOR ELECTROSTATIC CAPACITANCE-TYPE INPUT DEVICE
First Claim
1. An electrostatic capacitance-type input device comprising:
- a plurality of first electrodes, which detect an input position, extending in a first direction in an input area on a substrate;
a plurality of second electrodes, which detect an input position, extending in a second direction intersecting with the first direction in the input area;
a plurality of signal wirings that extend from one-side end portions of the first electrodes and one-side end portions of the second electrodes on the substrate;
a test electrode that faces the other-side end portions of at least one of the first electrodes and the second electrodes through an insulating film on the substrate; and
a test wiring that is electrically connected to the test electrode.
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Accused Products
Abstract
An electrostatic capacitance-type input device includes: a plurality of first electrodes, which detect an input position, extending in a first direction in an input area on a substrate; a plurality of second electrodes, which detect an input POSITION, extending in a second direction intersecting with the first direction in the input area; a plurality of signal wirings that extend from one-side end portions of the first electrodes and one-side end portions of the second electrodes on the substrate; a test electrode that faces the other-side end portions of at least one of the first electrodes and the second electrodes through an insulating film on the substrate; and a test wiring that is electrically connected to the test electrode.
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Citations
10 Claims
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1. An electrostatic capacitance-type input device comprising:
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a plurality of first electrodes, which detect an input position, extending in a first direction in an input area on a substrate; a plurality of second electrodes, which detect an input position, extending in a second direction intersecting with the first direction in the input area; a plurality of signal wirings that extend from one-side end portions of the first electrodes and one-side end portions of the second electrodes on the substrate; a test electrode that faces the other-side end portions of at least one of the first electrodes and the second electrodes through an insulating film on the substrate; and a test wiring that is electrically connected to the test electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of testing an electrostatic capacitance-type input device including a plurality of first electrodes, which detect an input position, extending in a first direction in an input area on a substrate, a plurality of second electrodes, which detect an input position, extending in a second direction intersecting with the first direction in the input area;
- and a plurality of signal wirings that extend from one-side end portions of the first electrodes and one-side end portions of the second electrode,
wherein a test electrode that faces the other-side end portions of at least one of the first electrodes and the second electrodes through an insulating film and a test wiring that is electrically connected to the test electrode are disposed, the method comprising the steps of; measuring capacitance values between the test wiring and the plurality of signal wirings; and determining that the electrode out of the first electrodes and the second electrodes, which has a capacitance value equal to or less than a set value, and to which the signal wirings are electrically connected is short-circuited.
- and a plurality of signal wirings that extend from one-side end portions of the first electrodes and one-side end portions of the second electrode,
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10. A driving device for an electrostatic capacitance-type input device including a plurality of first electrodes, which detect an input position, extending in a first direction in an input area on a substrate, a plurality of second electrodes, which detect an input position, extending in a second direction intersecting with the first direction in the input area;
- and a plurality of signal wirings that extend from one-side end portions of the first electrodes and one-side end portions of the second electrode, the driving device comprising;
a plurality of signal terminals that output position detecting signals to the signal wirings; a driving unit that supplies position detecting signals to the signal terminals; a test terminal; a capacitance measuring unit that measures capacitance values between the test terminal and the plurality of signal terminals; and a short-circuit determining unit that determines whether or not there is the signal terminal having a capacitance value equal to or less than a set value based on a capacitance measuring result of the capacitance measuring unit.
- and a plurality of signal wirings that extend from one-side end portions of the first electrodes and one-side end portions of the second electrode, the driving device comprising;
Specification