JPH0314121A - Programmable display device - Google Patents

Abstract

PURPOSE:To exactly execute a touch input operation even in the case a touch position is small and narrow with a usual display by bringing the vicinity of its touch position to enlarged window display against the touch input, executing the touch input again in its enlarged window display and detecting a touch position. CONSTITUTION:At the time of touching a touch detection area 5 of the display contents 4 displayed on a display screen 2, a touch panel 3 detects it, and applies a touch signal to a touch position detecting circuit 6. In the case a touch position is narrow, the enlarged window display of an adjacent area of the touch position is given to the display screen from a screen enlarging circuit 11. By further executing the touch operation, while looking at this enlarged window display, a touch area enlarging circuit 10 detects the touch position on the enlarged window display, and a touch position collating circuit 12 calculates a regular touch position and outputs it. In such a manner, even in the case the touch detection area is small and it is difficult to touch it exactly by the usual display, the input can be executed by touching easily a correct position.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a programmable display device.

(Prior Art) As a programmable display device with a touch panel for inputting data, display, operation commands, etc. for a control device, etc., one shown in FIG. 3 is conventionally known.

This conventional programmable display device includes a display screen 2 that displays predetermined display contents according to a screen display program stored in a control calculation circuit 1;
A touch panel 3 mounted on the front surface of the display screen 2, a touch position detection circuit 6 for detecting a touch detection area 5 on the touch panel 3 touched by the operator while looking at the display content 4 on the display screen 2, and the control calculation The screen display circuit 7 displays an image on the display screen 2 according to the screen display program of the circuit 1. Note that 8 is an input keyboard.

The touch detection area and touch number are defined in advance in the screen display program, and when the operator touches the touch detection area 5 of the display content 4 on the display screen 2, the touch position detection circuit detects the touch position on the touch panel 3. 6 detects and confirms that a touch has been made within the touch detection area defined by the screen display program, it notifies the control calculation circuit 1 of the corresponding touch number, and the control calculation circuit 1 uses this as touch input information. The following control operations are executed.

(Problem to be Solved by the Invention) However, in such conventional programmable display devices, many display contents are displayed on the display screen in order to increase the integration density of the display screen, and accordingly, settings and operations are required. The touch detection area of the touch sensor is also narrow and must be made small.As a result, it becomes difficult for the operator to perform a touch operation, and there is a problem in that touch errors are more likely to occur.

This invention was made in view of these conventional problems, and provides a programmable display that increases the integration density of the display screen and makes the touch area narrower and smaller, yet allows easy touch operations and reduces mistouches. The purpose is to provide equipment.

[Structure of the Invention] (Means for Solving the Problems) A programmable display device of the present invention includes a display screen that performs display based on a screen display program, a touch panel attached to the front of the display screen, and a touch panel mounted on the touch panel. a touch position detection circuit that detects the touch position of the display screen; a screen display circuit that controls the display of the display screen;
an enlargement display circuit for displaying an area in the vicinity of the touch position detected by the touch position detection circuit in an enlarged window; a selection circuit for determining whether or not the enlargement display circuit displays an area in the vicinity of the touch position in an enlarged window; Equipped with a touch area enlargement circuit that enlarges the touch detection area when an enlarged window display is selected, and a touch position verification circuit that compares the touch position before enlarged display with the touch position after enlarged display to determine the correct touch position. It is something.

The selection circuit may be configured to input a selection signal using a keyboard to display an enlarged touch detection area.

Another example of a selection circuit is a process that automatically displays an enlarged window in advance when a touch is detected in a screen display program and the touch position is in an area that requires an enlarged window display. It may also be a software-like program in which a touch area is determined by touch input on the enlarged window display by incorporating a program therein.

(Function) In the programmable display device of the present invention, when the operator performs a touch operation while looking at the display on the display screen,
A touch position detection circuit detects a touch position on the touch panel. When the touch position is narrow, an enlarged window display of the area near the touch position is given to the display screen by the screen enlargement circuit based on input from the selection circuit.

When the operator further performs a touch operation while looking at this enlarged window display, the touch area enlargement circuit detects the touch position on the enlarged window display, and the touch position matching circuit detects the touch position device and the enlarged window before displaying the enlarged window. It compares the displayed touch position with the displayed touch position, determines the correct touch position, and outputs it.

(Example) Hereinafter, embodiments of the present invention will be explained in detail based on the drawings.

FIG. 1 shows an embodiment of the present invention, in which a key switch is used as a selection circuit for selecting an enlarged window display.

In this embodiment, the control calculation circuit 1 that stores the screen display program, the display screen 2, the touch panel 3 on the front of the display screen 2, the touch position detection circuit 6, the screen display circuit 7, and the keyboard 8 are the same as in the conventional example. The structure is as follows.

Further, in this embodiment, a key switch 9 for selecting an enlarged display and a touch area enlargement circuit 1 are provided on the keyboard 8.
0. Screen enlargement circuit 1]-1 and touch detection verification circuit 1
2, a selection signal from the key switch 9 is given to the touch area enlargement circuit ]0 and the screen enlargement circuit 11, so that the touch area can be displayed in an enlarged window on the display screen 2.

In addition to the normal display information, the screen display program of the control calculation circuit includes enlarged window display information in the vicinity of each touch detection area in order to display the vicinity of the touch detection area in an enlarged manner.

Next, the operation of the programmable display device having the above configuration will be explained.

When the touch detection area 5 of the display content 4 displayed on the display screen 2 is touched, the touch panel 3 installed in the front of the display screen 2 detects the touch operation, and the touch position detection circuit 6 give a touch signal to. The touch position detection circuit 6 converts this touch signal into a touch coordinate position (X, Y) on the display screen 2 and inputs it to the control calculation circuit 1 (step S in the flowchart of FIG. 2).
1°S2).

The screen display program for the control calculation circuit includes display screen 2.
Touch detection area 5 where you want to perform the above manual operation, that is, coordinate position (xi, Yl-) of screen 2 and (x 2. Y
2) An area surrounded by a rectangle having a diagonal line and a touch number corresponding to the touch detection area 5 are defined in advance.

Therefore, if it is not the touch area expansion mode (step S3), the touch detection verification circuit 12 finds one touch area 5 to which the touch position coordinates (X, Y) detected by the touch position detection circuit 6 belong, The touch number of the touch area 5 is read out from the screen display program and given to the control calculation circuit 1 (step S7).

Then, the control calculation circuit 1 executes the next operation of the screen display program based on the operation input command corresponding to this touch number, and the screen display circuit 7 gives the next display to the display screen 2 according to the screen display program. Become.

When the enlarged display selection key switch 9 is operated after a touch operation in the normal display (step S3), the touch area enlargement circuit 10 switches control to the touch area enlargement mode, and the screen enlargement circuit 11 changes the position touched in the normal display. Enlarged window display 1 of nearby touch detection area 5
3 on display screen 2. At the same time as this enlarged window display 13, the touch area enlargement circuit 10 displays the enlarged window display 1.
Enlarged touch area on 3]-4 (Step S
4).

Therefore, when the operator touches the enlarged touch area 14 within the enlarged window display] 3, the touch position detection circuit 6 detects the signal as the touch position coordinates (x, y) within the enlarged line display (step S5). If the touch position coordinates (x, y) are within the enlarged touch area 14, the touch detection matching circuit 12 checks it with the corresponding touch area 5 before enlargement (step S6), and calculates the touch number corresponding to this touch area 5. is found from the screen display program, outputted, and given to the control calculation circuit 1 (step S7).

The control calculation circuit 1 executes the next stage of processing determined by the screen display program by inputting this touch number, and at the same time, the screen display circuit 7 displays the next display on the display screen 2 according to the screen display program.

In this way, when the integration density of the displays on the display screen 2 becomes high and the touch detection area becomes small and narrow, making accurate touch difficult, it is possible to An enlarged window is displayed on the display screen, and the touch position is found by performing another touch operation on the enlarged window display, so the touch detection area is small in the normal display and it is difficult to accurately touch. Even when it is difficult to input, you can easily touch the correct position and input.

Note that the present invention is not limited to the above-described embodiment, and multiple touch detection areas on the display/screen 2 may be displayed in an enlarged window at the same time.

Furthermore, in the above embodiment, the selection switch 9 provided on the keyboard 8 is used to instruct the enlarged window display, but in the screen display program, a message indicating whether or not to display the enlarged window is displayed on the screen in advance according to the touch position. 2, and when the operator responds YES/NO to the display, a selection circuit is assembled using software that displays an enlarged window of the touch detection area near the touch position or not. Good too.

[Effects of the Invention] As described above, according to the present invention, the touch position is detected by displaying an enlarged window in the vicinity of the touch position in response to a touch input, and performing a touch input again within the enlarged window display. Therefore, even if the touch position is small and narrow in the normal display, touch input operations can be performed on the enlarged display, making it possible to perform simple and accurate touch input operations.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a circuit block diagram showing an embodiment of the present invention, and FIG. 2 is a flow chart 1 and 3 showing the operation of the above embodiment.
The figure is a circuit block diagram of a conventional example. 1. Control calculation circuit 2. Display screen 3. Touch panel 4. Display contents 5. Touch detection area 6. Touch position detection circuit 7. Screen display circuit 8. Keyboard 9 Key switch] 0.. Touch area enlargement circuit 1]...Screen enlargement circuit 12...Touch detection verification circuit] 1]3...Enlarged window display 2

Claims (3)

[Claims] (1) A display screen that displays based on a screen display program, a touch panel attached to the front of this display screen, a touch position detection circuit that detects a touch position on this touch panel, and controls the display of the display screen. a screen display circuit for displaying an area in the vicinity of the touch position detected by the touch position detection circuit in an enlarged window; and a selection circuit for selecting whether or not to display an area in the vicinity of the touch position by the enlargement display circuit in an enlarged window. , a touch area enlargement circuit that enlarges the touch detection area in accordance with the enlarged window display selection of this selection circuit, and a touch position that determines a normal touch position by comparing the touch position before enlarged display with the touch position after enlarged display. A programmable display device comprising a verification circuit. (2) The programmable display device according to claim 1, wherein the selection circuit is constituted by a key switch. (3) The programmable display device according to claim 1, wherein the selection circuit is incorporated into a screen display program.