JPH059788Y2 - - Google Patents

Description

[Detailed description of the invention] <Technical field> The present invention is designed to perform input by forming electrode patterns on opposing surfaces of two substrates and bringing the electrode patterns into contact with each other by applying pressure from the outside. The invention relates to an input device.

<Prior Art> FIG. 2 shows a cross-sectional configuration of a conventional general resistive input device (touch panel).

The input side substrate 1 is a plastic film (generally a polyester film), and has an input side electrode pattern 2 of a transparent conductive film formed thereon. The lower substrate 5 is made of a plastic film, a glass substrate, or the like, and has a lower electrode pattern 4 of a transparent conductive film formed thereon. Each electrode pattern 2 and 4 is generally configured as an X line and a Y line,
When the input side board 1 is pressed with a finger, the board curves and the X and Y lines come into contact, thereby detecting the input position. In such a conventional touch panel, the spacer 3 is formed by screen printing or the like in order to maintain the electrode patterns 2 and 4 at a constant distance. This spacer is formed through two steps: printing a spacer resin by screen printing or the like, and drying and curing the spacer resin after printing. In other words, in the conventional input device, a separate material is required to form the spacer, and
There was also a problem in that the process required two steps.

<Purpose of the invention> The purpose of the invention is to solve the problems of the prior art described above.

<Effects of the invention> The input device of the invention has electrode patterns formed on both opposing surfaces of two substrates arranged with a space between them, and a maintenance protrusion that creates a space between the boards. In an input device formed in the form of dots between arrays of electrode patterns, deforming one substrate in response to a pressing operation and inputting information signals by bringing the electrode patterns into contact with each other, The maintenance protrusion is characterized in that it is formed using burrs produced by punching at least one of the two substrates.

<Examples> The present invention will be described in detail below based on examples.

FIG. 1 is a sectional view showing the structure of an embodiment of the present invention. In the figure, reference numeral 21 denotes an input side substrate made of plastic film, on which input side electrode patterns 22 of transparent conductive film are formed, and small holes are punched out with pins at locations corresponding to between the arrays of the electrode patterns 22. It is. A part of the film becomes a burr and protrudes from the surface punched by the small hole, and is formed in a point shape as a protrusion 23. This protrusion 23 acts as a spacer, and is connected to the input side electrode pattern 22 of the input board 21 and the lower electrode pattern 24 of the lower board 25.
The structure is such that a constant distance is maintained between the two.

In this way, by punching out the substrate and using the protrusions 23 formed thereby to hold both electrode patterns at a constant distance, no special spacer material is required, and the formation can be done in one step. This has the effect of making it possible.
Moreover, by specifying the shape of the pin for punching (for example, a needle-like shape with a sharp tip and a constant thickness of the body), it is possible to create a hole with a constant diameter regardless of the stroke during processing. Burrs (protrusions) of the same height can be easily formed, and there is no need to increase the machining accuracy regarding stroke depth.

<Effects of the invention> As explained in detail above, according to the invention,
No special material is required for the shape of the spacer part,
Its formation can also be performed in one step. That is, in the present invention, the input operation side board is made of a plastic film, and this plastic film is punched to form protrusions due to the generation of burrs, which can be used as a spacer to maintain the space between the boards. can. Moreover, since the spacer is formed in a dot shape between the arrays of electrode patterns, the display function is not obstructed, and input operations corresponding to the display contents are facilitated.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing the configuration of an embodiment of the present invention.
FIG. 2 is a sectional view showing the configuration of a conventional input device. Explanation of symbols, 1... Input side board, 2... Input side electrode pattern, 3... Spacer, 4... Lower electrode pattern, 5... Lower side board, 21... Input side board, 22... Input Side electrode pattern, 23...Protrusion due to burr caused by punching, 24...
...Lower electrode pattern, 25...Lower substrate.

Claims (1)

[Claims for Utility Model Registration] Electrode patterns are formed on both opposing surfaces of two substrates arranged with a space between them, and maintenance protrusions that create a space between the substrates are arranged in the electrode pattern. In an input device that inputs an information signal by deforming one substrate in response to a pressing operation and bringing the electrode patterns into contact with each other, the space-maintaining protrusion is An input device characterized in that it is formed using burrs produced by punching at least one of two substrates.