JPS59103233A - Transparent touch input unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an input device that is attached to a display device and used for inputting data by indirectly pointing a desired position on a display surface with a finger.

There are various types of conventional devices of this type, including those that use surface acoustic waves, those that detect whether or not light is transmitted or blocked, and
There are devices that detect finger force, but all devices are complicated and expensive. The simplest and cheapest method is to use a conductive sheet or a resistive sheet.

FIG. 1 is a sectional view showing an example of a conventional device using a conductive sheet. In this figure, 1 is the transparent substrate on the side facing the display device, 2 is the transparent thin plate on the side that the operator touches, and 3
4 is a spacer, 4 is a transparent row electrode provided on the transparent substrate 1,
Reference numeral 5 indicates a transparent column electrode provided on the transparent thin plate 2, and reference numeral 6 indicates an intersection of the display device, which comes into contact when pressed.

2 is a plan view of the apparatus of FIG. 1; FIG. The intersection 6 of the transparent row electrode 4 and the transparent column electrode 5 is pressed from above the transparent thin plate 2, and the transparent thin plate 2 is deformed to close the electrodes 4 and 5, thereby inputting.

In such a device, since the spacer 3 is small, it is often used after being hardened with the adhesive itself. Therefore, the number of steps is large, and processing accuracy is difficult to control. Further, when the transparent thin plate 2 is made of a material having higher rigidity than a plastic film such as thin glass, there is a drawback that the spacer 3 and the transparent thin plate 2 are likely to separate due to shearing force, tensile force, or compressive force applied to the spacer 3.

In order to solve these drawbacks, this invention uses a plate-shaped spacer and a thin plate of transparent plastic or rubber as the material.The purpose of this invention is to create an inexpensive and durable transparent touch. Provides an input device. below,
The invention will be explained with reference to the drawing IC.

3 and 4 are a plan view and a sectional view showing an embodiment of the present invention, in which the transparent spacer 3 is in the form of a thin plate, and is cut at the intersection 60 of the transparent row electrode 4 and the transparent column electrode 5. A square hole 7t is provided as a cutout to enable contact between the electrodes 4 and 5.

FIG. 5 shows another embodiment of the present invention, showing only the shape of the spacer 3. In this example, the holes 7 are continuous in the row direction (or column direction), making it easy to process. It is.

In the embodiment shown in FIG. 5, since the holes T are continuous in the row direction, they are easily deflected, so in order to prevent this deflection, especially when the device is square-shaped or when the resolution is increased, the transparent substrate 1 is It is necessary to fix it by gluing it.

This has been explained above. 11.5, according to the present invention, there is no need to adjust the distance between the two plates having the conductive electrodes to a constant value, and the assembly is simple as it is only necessary to insert a spacer between them, and the material does not require particularly expensive items,
It has the advantage that it can be constructed at low cost.

[Brief explanation of the drawing]

Figure 1 is a sectional view showing an example of a conventional device, and Figure 2 is a cross-sectional view of an example of a conventional device.
FIGS. 3 and 4 are plan views and cross-sectional views showing one embodiment of the present invention, and FIG. 5 is a plan view showing another embodiment of the present invention. In the figure, 1 is a transparent substrate, 2 is a transparent thin plate, 3 is a spacer, and 4
5 is a transparent row electrode, 5 is a transparent column electrode, 6 is an intersection, and 7 is a hole. Figure 1 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] In an input device having a structure in which two transparent plates having transparent electrodes are stacked with a spacer in between, the transparent plates having the transparent electrodes are made of a transparent non-conductive material, and one of the plates has elasticity that bends when pressed by a finger. The spacer is made of a transparent and elastic non-conductive material, and is formed into a plate shape with a portion of the transparent plate material having the two electrodes that is to function as a switch cut out. Transparent touch input device.