JPS61290523A - Touch key input device - Google Patents

Abstract

PURPOSE:To execute easily a work for attaching a touch panel switch to the front of a CRT by generating a coordinate transforming expression by calculating a shift of the touch panel switch and a display picture, and converting a switch coordinate data to a display picture coordinate value. CONSTITUTION:At the time of assembling, X and Y axes of a transparent touch panel 1 are attached to X and Y axes of a picture of a CRT 2, and thereafter, reference positions P, Q, R and S whose coordinate values are clear are depressed, and a contact coordinate data of the touch panel switch 1 corresponding to these reference positions is stored in a RAM 5. A CPU 3 generates a coordinate transforming expression by calculating a shift of the X and Y axes of the touch panel switch 1 and the X and Y axes of the CRT picture from said contact coordinate data and the coordinate value of the reference position. Thereafter, when depressing the touch panel switch, a coordinate data from a contact detecting circuit 7 is converted to a coordinate value of the picture by using the transforming expression. In this way, a complicated alignment of the time for attaching the switch becomes unnecessary.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field The present invention relates to simplifying the installation of transparent tuff switch boxes installed on display screens.

(b) Summary of the Invention The touch key human power device according to the present invention attaches the X and Y axes of the transparent touch panel switch (direction of transparent electrodes) to the X and Y axes of the display screen (vertical and horizontal directions of the screen) during assembly. A reference position whose coordinate values are clear is pressed, and the contact coordinate data of the touch panel switch corresponding to the reference position is stored. From this contact coordinate data and the coordinate value of the reference position, the touch panel switch's X and Y axes and the display screen's X,
A coordinate conversion formula is generated by calculating the deviation from the Y axis, and when the touch panel switch is subsequently pressed, the coordinate data from the press is converted to accurate display screen coordinate values using the conversion formula, making installation less time-consuming and time-consuming. Eliminates the need for alignment.

(C) Conventional technology and its disadvantages When entering automatic transaction processing devices such as ATMs (cash automatic teller machines) and CDs (automatic teller machines) installed in banks and other financial institutions, the PIN number and billed amount are entered. Some devices are equipped with touch keys, in which images of keys for inputting data are displayed on a display screen such as a CRT, and input is performed by the customer touching the displayed keys. The touch position of this touch key is detected by a touch panel switch installed on the surface of the display screen.

<Description of Touch Panel Switch> FIG. 6 is a diagram showing a touch panel installed on the display screen. This touch panel 1 has an opposing upper panel 10 ((C) in the same figure) and a lower panel 20 ((D) in the same figure).
It consists of two transparent panels. Each panel has transparent electrodes 12a-w12t arranged in stripes at equal intervals on a transparent insulating sheet 11.21.

22a to 22d are formed. This electrode is
A uniform transparent conductive sheet is laminated onto the transparent insulating sheet 11, 21, and then chemically etched or mechanically peeled off to have a predetermined width and a predetermined interval. In the upper sheet 10 from the transparent electrode t, horizontal stripes (12a to 12c) are formed on the lower side (toward the lower panel 20).
The lower sheet 20 has vertical stripes (22a
~22d), are formed on the upper side (toward the upper panel 10). Lead wires 13a to 13 are attached to each transparent electrode.
c, 23a to 23d are connected, and these lead wires 13a
~13c, 23a~23d are connected to a contact detection circuit.

The transparent electrode 12 formed on the upper panel 10 as described above
Each of a to 12c is formed in the horizontal and longitudinal direction, and is arranged at equal intervals vertically (in the Y-axis direction). Also,
Transparent electrodes 2.3a to 23d formed on the lower panel 20
are formed in the vertical and longitudinal direction, and the left and right (X
are arranged at equal intervals in the axial direction). As a result, the transparent electrodes 12a to 12c of the upper panel 0 and the lower panel 2
The portions where the transparent electrodes 23a to 23d of 0 overlap, that is, the intersection points are arranged in a matrix. As described above, each of the transparent electrodes 12a to 12c, 22a to 2
2d lead wires 13a to 13c.

Since 23a to 23d are connected to the contact detection circuit,
When the touch panel switch 1 is pressed, by detecting which transparent electrodes 12a to 12c on the upper panel 10 and which transparent electrodes 23a to 23d on the lower panel 20 are in contact, that is, by detecting the contact point, Detect the pressed position.

The touch panel switch 1 having the above configuration is installed on a display screen such as a CRT, an image of a key is displayed on the display screen, and if it is detected whether or not the intersection point corresponding to the key is touched, the customer can When the image of the key is pressed, the pressing can be detected by the contact of the contact point.

By the way, in conventional touch panel switches, the number of input keys displayed on the screen was small, so the width of each transparent electrode and the distance between adjacent transparent electrodes were wide, making it difficult for the operator to attach the touch panel switch on the display screen. The position of the intersection of the electrodes could be easily confirmed by visual inspection. In addition, since the intersection of orthogonal electrodes is wide, positional accuracy is not very important when installing a touch panel switch, and it is preferable that the touch panel switch be installed manually by the operator with simple visual inspection. Touch panel switches and their problems>However, recently,
Automatic transaction processing devices, etc. are becoming more multi-functional, for example, one A
Since it is now possible to perform a variety of processes using TM, such as making deposits, making withdrawals in bankbooks, checking balances, and transferring money to other accounts, it is necessary to increase the number of types of input keys. Additionally, financial institutions that install automatic transaction processing equipment often specify their own touch key layouts, and in order to fully support these specifications, touch panel switches that can be used universally with any key layout are needed. It was wanted.

For this reason, recently the width of the transparent electrodes formed in the above-mentioned touch panel switch and the interval between the transparent electrodes have been narrowed.
It is compatible with many key displays and can detect the press of keys displayed in any arrangement at any position. Currently, a touch key with 33 transparent electrodes formed horizontally and 66 vertically on a CRT screen is in practical use, but the width of such transparent electrodes and the spacing between the transparent electrodes are narrow. In touch panel switches, it is difficult to distinguish between the part where transparent electrodes are formed and the part where only transparent insulation sheets are formed, and when attaching to the display screen, the intersection of the transparent electrodes is narrow, so If the mounting position is misaligned, the position where the key is displayed on the screen and the position of the intersection for determining whether the key has been pressed will not match, and accurate key press detection cannot be performed. That is, it is difficult to visually observe the intersection points, and the accuracy of the mounting position must be high, and it is extremely difficult to satisfy this condition by visual inspection.

ld) Purpose of the Invention In view of the above-mentioned drawbacks, it is an object of the present invention to provide a touch key manual device in which precision is not required for mounting a touch panel switch.

(e) Structure and effect of the invention This invention provides a display screen on which X and Y coordinates are set and a plurality of reference positions whose coordinate values are clear;
a transparent touch panel switch that is attached to the display screen and outputs the contact position as uniquely set X and Y coordinate data; means for storing contact coordinate data of a reference position; and conversion from the X, Y coordinates of the touch panel switch to the X, Y coordinates of the display screen based on the stored contact coordinate data and the coordinate values of the reference position. a conversion formula generation means for generating a formula;
The present invention is characterized by comprising coordinate conversion means for converting contact coordinate data of the touch panel switch into coordinate values of the display screen using the conversion formula when the touch panel switch is pressed thereafter.

With the above configuration, in this invention, after the touch panel switch is attached to an appropriate position on the display screen, by pressing the reference position displayed on the display screen, the misalignment of the touch panel switch is corrected. A coordinate transformation formula can be generated. After that, the contact position when the touch panel switch is pressed is obtained by converting the contact coordinate data of the touch panel switch to the coordinate values of the display screen using the coordinate conversion formula described above. Position detection can be performed with approximately the same accuracy as in the case of alignment. Therefore, the installation work of the touch panel switch becomes much simpler, and the device assembly work can be simplified, and subsequent maintenance work only requires redoing the work of pressing the reference position at the time of installation. There is an advantage of simplification.

if) Embodiment FIG. 1 is a schematic diagram of a part of the input keys of a touch key human power device according to an embodiment of the present invention. A part of the input key is composed of a touch panel switch 1 and cR'rg. The touch panel switch 1 has a configuration similar to that shown in FIG. 6, and approximately 70 transparent electrodes are formed in the vertical (horizontal) direction and approximately 40 transparent electrodes are formed in the horizontal (vertical) direction.

This touch panel switch 1 is made slightly larger than the CRT 2, but this is to prevent the CRT 2 from protruding from the touch panel switch 1 even if there is a misalignment in the installation. When the touch panel switch 1 is mounted on a CRTZ, there are approximately 66 horizontal and 33 vertical transparent electrodes located on the CRTZ. CRT shown in Figure 5
This screen is displayed when requesting the input of a personal identification number in an automatic transaction processing device, and three to four transparent electrodes are passed through each of these numeric keys both vertically and horizontally. When the touch panel switch 1 is pressed and contacted, the contact position can be detected by X and Y coordinates by detecting the vertical transparent electrodes and horizontal transparent electrodes that were in contact. The coordinate axis is lx,
ly, and its intersection 1o is the origin. Necessary keys are displayed on the CRT 2 in accordance with the operation of an automatic transaction processing device or the like equipped with this touch key manual device. In order to quantify the display position, virtual X and Y coordinates are set on the CRT2.The display position of the key is, for example, (X, Y:
X, < X < X.

It is set as a set of coordinate points: AND Yo<Y<Y+). An image of the key is displayed on the CRT 2 at a position corresponding to this coordinate point. In addition, there are 4
Reference positions P, Q, R, and S are set. These coordinates are (0, p) (q, 0) (0, r) respectively
(s, 0).

FIG. 2 is a block diagram showing the configuration of the touch key manual device. CPU3 stores programs etc.
OM4. A RAM 5 for storing data and the like and an interface 6 are connected.

A CRT 2 and a contact detection circuit 7 are connected to the interface 6, and a touch panel switch 1 is connected to the contact detection circuit 7.
is connected. The contact detection circuit 7 is a circuit that detects the contact of the touch panel switch 1 using X and Y coordinates.

As shown in FIG. 1, the touch panel switch 1 is
It is not installed with the coordinate axes of T2 and each other matching. Therefore, even if the coordinates are determined as is, a position different from the actual pressed position will be detected, making it impossible to detect the correct key press. Therefore, immediately after installation, coordinate conversion work is performed so that the CPU 3 can convert the coordinates into accurate coordinate values.

The operation of the program is shown in FIG. First step n
1 (hereinafter, step nt4 is simply referred to as ni), the counter is initialized. This counter is for counting the number of reference positions displayed in the following operation. At n2, first, the reference position Hp is displayed. The coordinates of the reference position P are given by (0°p). At n3, when the operator accurately presses the display position of the reference position P on the touch panel 2 with a sufficiently sharp object such as a pen tip, the coordinate data is input to the touch data input device. The data (Xp
+ Yp), and 1 is added to the counter at n4. If we judge that the content of the counter is 4 at n5,
When the path to the next arithmetic processing operation is a smaller number, the process returns to n2 and sequentially displays the reference positions Q, R, and S, and stores the corresponding coordinate data. The coordinates of R and S are (Q, 0) (0, r), respectively.
It is given by (s, 0). Coordinate data of reference positions P, Q, R, S (Xq, Yq) (Xr, Yr) (Xs, Y
After completing the storage of s) and proceeding to n5, the following arithmetic processing is performed.

Δx = (Xp + Xr)/2, Δy − (Yp +
Yr)/2cos-'θ-(Yp+Yr)/(p+
r) Similar calculations are performed and confirmed for the reference positions Q and S.

The above calculation leads to the following equation.

Here, ΔX and Δy are the deviations of the origin position, and θ is the inclination of the coordinate axes. At n6, this result is stored and the operation ends.

FIG. 4 is a flowchart showing the operation during normal use after the above-mentioned installation work has been performed. nlo
The process waits until it is determined that the touch panel inch has been pressed, and if there is a press, the process advances to nil. If nil, the coordinate data 1 (x.

y)・ is read, and its coordinate data (x.y) is read at n12.

y) to the coordinate values (X, Y) of the CRT2.

At n13, it is determined whether or not a key is displayed at the position corresponding to the coordinate value, and if so, the key press is transmitted to the CPU to perform the operation corresponding to the key. If there is no corresponding key, return to nlO.

According to the touch key manual device with the above configuration, sometimes the CRT 2 can be installed so that it does not come off the touch panel switch 1, and the installation process can be simplified by using a later coordinate conversion formula generation process to maintain the installation misalignment. Subsequent key human power generated will be detected accurately. This facilitates the work of attaching a touch panel switch having a large number of thin transparent electrodes to the front of the CRT, contributing to improved work efficiency and cost reduction of the device.

[Brief explanation of drawings]

Fig. 1 is a schematic configuration diagram of the key manpower unit of a touch key manpower device according to an embodiment of the present invention, Fig. 2 is a block diagram of the above embodiment, and Fig. 3 shows how the touch panel switch 1 is mounted in the above embodiment. FIG. 4 is a diagram showing the key manual judgment operation during normal use; FIG. 5 is a diagram showing a general display example of the CRT of the above embodiment;
FIGS. 6A to 6D are diagrams showing the configuration of the touch panel switch, and FIG. 7 is a diagram showing the pressed state of the touch panel switch. 1-touch panel switch, 2-CRT. P, Q, R, S - reference position.

Claims (1)

[Claims] (1) A display screen on which X and Y coordinates are set and multiple reference positions whose coordinate values are clear, and X and Y coordinates that are attached to this display screen and have unique contact positions set. a transparent touch panel switch that outputs data; means for storing contact coordinate data of the plurality of reference positions pressed immediately after the touch panel switch is attached to the display screen; a conversion formula generating means for generating a conversion formula from the X, Y coordinates of the touch panel switch to the X, Y coordinates of the display screen based on the coordinate values of the reference position; and when the touch panel switch is pressed thereafter; A touch key input device comprising: coordinate conversion means for converting contact coordinate data of a touch panel switch into coordinate values of a display screen using the conversion formula.