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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

Inactive Publication Date: 2003-05-28
ALPS ALPINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This position fluctuation reduces the accuracy of coordinate position detection

Method used

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Embodiment Construction

[0013] Refer below Figure 1 to Figure 3 A preferred embodiment of the touch sensor sheet of the present invention will be described.

[0014] As shown in the figure, the touch sensor sheet 10 has a rectangular glass sheet 11, eg, 50 mm high and 70 mm wide, and a film 12 that is almost the same shape as the glass sheet and stacked on the glass sheet. The substrates 11 and 12 are bonded together, and the opposite edges of the two substrates are coated with a sealant not shown in the figure. The upper surface of the film 12 is a pressure-operated plate.

[0015] The bottom of the film 12 is formed with a transparent resistor 13 made of ITO or the like and covering the entire film, a pair of electrodes 14 and 15 extending along the left and right sides of the film and contacting the resistor 13, and a bottom not shown in the figure. The coating forms conductive circuit patterns 16 and 17 protruding from the electrodes 14 and 15, respectively, near the upper side of the film. T...

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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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041G06F3/045G06F3/0488
CPCG06F3/045
Inventor 伊藤隆幸笹川英人渡边武
Owner ALPS ALPINE CO LTD
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