JPH09171437A - Input device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a user to accurately perform the input in an input item even when the input item is arranged at the end of the inclined surface of a display means by installing a plane part including a light emitting element and light receiving element arranged along the side opposed to the display means so as to be brought into contact with the end of the inclined surface of the display means. SOLUTION: An input detection means is composed of an X coordinate detection light emitting diode 1a for the upper part of a display surface, an X coordinate detection light receiving diode 1b for the upper part of the display surface, an X coordinate light emitting diode 2a for the lower part of the display surface, an X coordinate light receiving diode 2b for the lower part of the display surface, a Y coordinate light emitting diode 3a for the right part of the display surface, a Y coordinate light receiving diode 3b for the right part of the display surface, a Y coordinate light emitting diode 4a for the left part of the display surface and a Y coordinate light receiving diode for the left part of the display screen. Each light emitting diodes 1a to 4a and light receiving diodes 1b to 4b are supported in a frame 31 in a form that the diodes are arranged on four sides of a CRT display device 8 as display means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an input device used in an automatic transaction device such as a bank.

[0002]

2. Description of the Related Art Conventionally, when a display surface of a CRT display device is spherical, in order to mount a touch panel on the display surface, a touch panel matching the shape of the display surface of the CRT display device is mounted on the display surface. I was wearing it. As a result, the display position of the input item or the like on the display surface and the input operation position of the touch panel by the user match, so that accurate touch input is possible.

However, in the above-mentioned device, both the touch panel surface and the touch panel surface must be spherical in accordance with the display surface of the spherical CRT display device. Therefore, a dedicated touch panel according to the shape of the display surface of each CRT display device is required. It is necessary to prepare a touch panel, which makes the device expensive.

Further, as shown in FIG. 6, for example, the issuing diode 5a and the light receiving diode 5b are attached to the side of the CRT display device 8 and the detection area 6 connecting them is used to detect the input position by the user. What was done was also used.

The so-called optical touch panel as described above is less expensive than a touch panel manufactured according to the form of the display screen of the CRT display device, so that the display surface of the CRT display device is not expensive. Widely used as a retrofit device.

[0006]

However, in the above-mentioned optical touch panel, as shown in FIG. 6, for example, a light emitting diode 5a for optically detecting the position of the touch input by the user is provided. Since the input position detection area 6 connecting to the light receiving diode 5b is horizontal with respect to the CRT display device 8 having a spherical surface, if an input item is arranged at the end of the display screen, it becomes horizontal. A parallax is generated between the upper detection position and the actual input position by the width 7 shown in FIG. 6, and as a result, an input detection error occurs. This error increases as the distance between the detection surface and the display surface increases toward the corner of the display screen, and cannot be ignored.

Therefore, in the optical touch panel,
The area that can be used for touch input is
It was limited to the periphery of the central part of the display screen where the error was reduced.

This imposes restrictions on the creation of the layout of the display screen and limits the expressions that can be made on various display screens.

The present invention has been made to solve the above-mentioned problems, and it becomes possible to accurately perform touch input even at the corner of the curved display means, and as a result, the user is satisfied. It is an object of the present invention to provide an input device capable of creating various display screen layouts.

[0010]

In order to achieve this object, an input device according to claim 1 is provided with a display means for displaying an instruction of an operation input and a state of being superimposed on the surface of the display means. And an input detecting means for detecting input of a key, wherein the input detecting means is composed of a light emitting element and a light receiving element arranged along opposite sides of the display means. At the same time, the flat portion including the light emitting element and the light receiving element is installed so as to be in contact with the end of the inclined surface of the display means. Therefore, even if the input area is arranged at the end portion of the display screen, the flat portion including the light emitting element and the light receiving element is in contact with the inclined surface at the end of the display screen, so that the distance between the detection surface and the display surface is small. As a result of the narrowing, the parallax becomes smaller, so that the touch input can be performed accurately.

An input device according to a second aspect is the input device according to the first aspect, wherein the surface of the display means is a curved surface. Therefore, even if the display screen is a curved surface and the input area is arranged at the end portion thereof, the distance between the detection surface and the display surface is narrowed, and as a result, the parallax is reduced, so that the touch input can be accurately performed.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

FIG. 1A is a schematic view of the input device 50 of the present invention seen from the front, and FIG. 1B is a sectional view taken along the line BB in FIG. 1A. FIG. 1C is a diagram of FIG.
It is the sectional view on the AA line in (a).

As shown in FIG. 1 (a), the X-coordinate detection light emitting diode 1a for the upper part of the display surface as a light emitting element is a CR
The T-display 8 is installed on the upper side of the display surface, and the X-coordinate detection light receiving diode for the upper display surface as a light receiving element is installed on the lower side of the CRT display 8. Then, as shown in FIG. 1B, the plane 11 connecting 1a and 1b becomes the display surface upper input position detection area.

Further, as shown in FIG. 1A, the X-coordinate detection light emitting diode 2a for the lower display surface as a light emitting element.
Is installed on the upper side of the display surface of the CRT display device 8, and the X-coordinate detection light receiving diode 2b for the lower display surface as a light receiving element is installed on the lower side edge of the CRT display device 8. Then, as shown in FIG. 1B, 2a and 2
The plane 12 connecting b is the input position detection area at the lower part of the display surface.

Then, as shown in FIG. 1 (a), the X coordinate detecting light emitting diode 1a for the upper part of the display surface and the X coordinate detecting light emitting diode 1a for the lower part of the display surface.
The coordinate detection light-emitting diodes 2a are arranged alternately on the upper side of the display surface of the CRT display device 8 in the front-rear direction and are alternately arranged. Light-receiving diode 1b and X for lower display surface
The coordinate detection light-receiving diodes 2b are arranged alternately below the side of the display surface of the CRT display device 8 in the front-rear direction.

Further, as shown in FIG. 1A, the Y coordinate detection light emitting diode 3a for the right portion of the display surface as a light emitting element.
Is installed on the left side of the display surface of the CRT display device 8, and the Y coordinate detection light receiving diode 3b for the right side of the display surface as a light receiving element is provided on the right side of the display surface of the CRT display device 8. is set up. Then, as shown in FIG.
A plane 13 connecting 3a and 3b is the input position detection area on the right side of the display surface.

Further, as shown in FIG. 1A, the Y coordinate detection light emitting diode 4a for the left portion of the display surface as a light emitting element is provided.
Is installed on the left side of the display surface of the CRT display device 8, and the Y coordinate detection light receiving diode 4b for the left side of the display surface as a light receiving element is provided on the right side of the display surface of the CRT display device 8. is set up. Then, as shown in FIG.
A plane 14 connecting 4a and 4b becomes the input position detection area on the left side of the display surface.

Then, as shown in FIG. 1A, the Y coordinate detection light emitting diode 3a for the right part of the display surface and the Y coordinate detection light emitting diode 4a for the left part of the display surface are the sides of the display surface of the CRT display device 8. The Y-coordinate detection light-receiving diodes 3b for the right-hand side of the display surface and the Y-coordinate detection light-receiving diodes 4b for the left-hand side of the display surface are arranged alternately on the left part in the front-rear direction and are arranged alternately. Are arranged alternately on the right side of the display surface of the CRT display device 8 at intervals in the front-rear direction.

The above-mentioned X-coordinate detection light-emitting diode 1a for the upper display surface, X-coordinate detection light-receiving diode 1b for the upper display surface, X-coordinate light-emitting diode 2a for the lower display surface, X-coordinate light-receiving diode 2b for the lower display surface, and display surface. Input detection means is configured by the right Y coordinate light emitting diode 3a, the display surface right Y coordinate light receiving diode 3b, the display surface left Y coordinate light emitting diode 4a, and the display left Y coordinate light receiving diode 4b. . The individual light emitting diodes and light receiving diodes are arranged on the four sides of the CRT display device 8 serving as the display means, and are arranged in the frame 31.
Supported within.

The straight line 9 shown in FIG.
Is a reference axis that serves as a reference for determining whether the input position by the user is on the right side or the left side.
Is a reference axis that serves as a reference for determining whether the input position by the user is at the upper portion or the lower portion.

Here, for example, it is assumed that the user inputs an input item arranged on the display surface 17 of the CRT display device 8 from the viewpoint 16 shown in FIGS. 1 (b) and 1 (c).

At this time, the touch of the input item 17 by the user is detected by the light emitting diode 2a, the light receiving diode 2b, the light emitting diode 4a, and the light receiving diode 4b. Therefore, parallax 1 that occurs at that time
5 and 30 are much smaller than the parallax 7 shown in FIG. 1, so that the risk of falsely detecting an input is significantly reduced as a result.

The electrical configuration of the input device 50 having the above configuration will be described with reference to the electrical configuration diagram shown in FIG.

The input device 50 operates based on a command from the CPU 20, and the CPU 20 causes the X for the upper portion of the display surface to detect the position on the X coordinate of the input position by the user.
A coordinate detection light emitting diode 1a, a display surface upper X coordinate detection light receiving diode 1b, a display surface lower X coordinate detection light emitting diode 2a, a display surface lower X coordinate detection light receiving diode 2b, and a user input portion Y-coordinate detection light-emitting diode 3 for the right part of the display surface for detecting the position on the Y-coordinate
a, a Y-coordinate detection light-receiving diode 3b for the right side of the display surface, a Y-coordinate detection light-emitting diode 3c for the left side of the display surface, a Y-coordinate detection light-receiving diode 3d for the left side of the display surface, CRT display device 8, ROM 21, and RAM 22. Are connected.

Next, the operation of the input device 50 will be described with reference to FIG.
This will be described with reference to the flowchart of FIG.

When the user inputs an input item arranged on the display surface of the CRT display device, C
The PU 20 detects the outline of the X coordinate of the input position by the light emitting diodes 1a, 2a and the light receiving diodes 1b, 2b arranged along the X axis of the CRT display device 8 (step 1. The step S below). Note). CPU
20 determines whether the approximate position of the X coordinate detected here is on the right or left of the reference axis (9 in FIG. 2) perpendicular to the above-mentioned X coordinate (S2). As a result of the CPU, if the input position is on the right of the reference axis 9 of the X coordinate (S2: YE
S), the input position is detected by the light emitting diode 3a and the light receiving diode 3b described above (S3).

On the other hand, if the detected input position is on the left side of the X-coordinate reference axis 9, the light emitting diode 4a described above is used.
And the input position is detected by the light receiving diode 4b (S4).

Then, the outline of the Y coordinate of the input position is detected (S5). The CPU 20 determines that the position input by the user is the reference axis (1 in FIG. 2) perpendicular to the Y coordinate described above.
It is determined whether it is above or below 0) (S6). As a result, if the input position is above the reference axis 10 of the Y coordinate (S6: Y
ES), the input position is detected by the input position detection area 11 on the upper surface of the display which connects the light emitting diode 1a and the light receiving diode 1b described above (S7).

On the other hand, if the detected input position is below the reference axis 10 of the Y coordinate, then the light emitting diode 2a described above is used.
And the input position is detected by the light receiving diode 2b (S8).

Therefore, even when inputting the input item 17 portion shown in FIG. 1, for example, the parallax between the detected position and the actual input position can be significantly reduced like the parallax 15 shown in FIG. As a result, the occurrence of erroneous input can be minimized.

That is, as shown in FIG. 4, when the user inputs to an input item arranged in the upper right area 90 on the display surface of the CRT display device 8, the input position is the light emitting diode 1
a and the light receiving diode 1b, and the light emitting diode 3a and the light receiving diode 3b. Also, CRT
When the user inputs an input item arranged in the lower right area 60 on the display surface of the display device 8, the input position is detected by the light emitting diode 2a and the light receiving diode 2b, and the light emitting diode 3a and the light receiving diode 3b. It When the user inputs an input item arranged in the upper left area 70 on the display surface of the CRT display device 8, the input position is determined by the light emitting diode 1a and the light receiving diode 1b and the light emitting diode 4a and the light receiving diode 4b. To be detected. Further, when the user inputs an input item arranged in the lower left area 80 on the display surface of the CRT display device 8, the input position is the light emitting diode 2a and the light receiving diode 2
b, and the light emitting diode 4a and the light receiving diode 4b.

The present invention is not limited to this embodiment described above, and the order and intervals of the arrangement of the light emitting element and the light receiving element can be freely set.

Further, in this embodiment, the outline of the Y coordinate is detected after the outline of the X coordinate is detected, but the outline of the Y coordinate may be detected first and then the X coordinate may be detected.

As shown in FIG. 5, an adjusting screw 32 for adjusting the distance between the light emitting diode and the light receiving diode in the front-rear direction is installed in accordance with the shape of the display surface of the CRT display device 3, and an adjusting knob 33 is used. If the distance can be adjusted, it can be installed in various CRT display devices.

[0036]

As is apparent from the above description,
According to the input device of the present invention, the plane portion including the light emitting element and the light receiving element, which are arranged along the opposite sides of the display means, is installed so as to be in contact with the end of the inclined surface of the display means. Therefore, when the input item is arranged at the end of the inclined surface of the display means, the user can accurately input the input item. Further, even if the display means is a curved surface, since the flat portion including the light emitting element and the light receiving element is installed so as to be in contact with the end of the curved surface of the display means, the input item at the end of the curved surface of the display means. Even if is placed, the user can accurately input in the input item.

[Brief description of the drawings]

FIG. 1A is a schematic view of an example of the input device according to the present embodiment as viewed from the front. FIG. 1B is a schematic view of an example of the input device according to the present embodiment as seen from a cross section taken along the line BB. FIG.
(C) is the schematic which looked at an example of the input device of a present Example from the AA line cross section.

FIG. 2 is a diagram showing an electrical configuration of the input device of the present embodiment.

FIG. 3 is a flowchart showing the operation of the input device according to the present embodiment.

FIG. 4 is a schematic view of a modified example of the input device according to the present embodiment as viewed from the front, the Y-axis direction, and the X-axis direction.

FIG. 5 is a diagram showing four types of input areas on the display screen of the input device according to the present embodiment.

FIG. 6 is a diagram showing an example of a conventional optical input device.

[Explanation of symbols]

 1a X coordinate detection light emitting diode for upper display surface 1b X coordinate detection light receiving diode for upper display surface 2a X coordinate detection light emitting diode for lower display surface 2b X coordinate detection light receiving diode for lower display surface 3a Y coordinate detection light emission for lower display surface Diode 3b Display surface right Y coordinate detection light receiving diode 4a Display surface left Y coordinate detection light emitting diode 4b Display surface left Y coordinate detection light receiving diode 8 CRT display device 21 Adjustment screw 22 Adjustment knob

Claims (2)

[Claims] 1. An input device comprising: a display unit for displaying an operation input instruction; and an input detection unit provided on the surface of the display unit for detecting a key input. Is composed of a light emitting element and a light receiving element arranged along opposite sides of the display means, and a plane portion including the light emitting element and the light receiving element is in contact with the end of the inclined surface of the display means. The input device is characterized by being installed like. 2. The input device according to claim 1, wherein the surface of the display means is a curved surface.