Tablet

A sensing sheet and film technology, applied in the direction of instrumentation, electrical digital data processing, user/computer interaction input/output, etc., can solve problems such as reducing the accuracy of coordinate position detection
CN1109958CInactive Publication Date: 2003-05-28ALPS ALPINE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ALPS ALPINE CO LTD
Publication Date
2003-05-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

A tablet that hardly causes the fluctuation in the sheet resistance on a film substrate despite the small size of the tablet. The edge of one side of the film substrate requiring a notch for connector insertion are provided with other notches having the same depth as that of the notch for connector insertion, thereby notching most of the edge to the same depth.
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Description

technical field

[0001] The present invention relates to a small flat sheet or a touch-sensitive sheet installed on a display screen of a liquid crystal display device, etc., for inputting a coordinate signal indicating acupressure position of a finger etc. on the flat sheet. Background technique

[0002] The structure of the above-mentioned small flat sheet is usually composed of a rectangular glass sheet and a film of almost the same shape stacked thereon, and a finger or the like touches the top of the film to input information. That is to say, the bottom (electrode surface) of the film is equipped with transparent resistors made of ITO (indium tin oxide) electrodes, etc., a pair of electrodes extending along both sides, parallel to each other, and in contact with the resistors, and from the two electrodes to the resistors respectively. A conductive circuit pattern protruding near another electrode. Similarly, the upper surface (electrode surface) of the glass sheet is eq...

Claims

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