JPH01177120A - Display device for operation key - Google Patents

Abstract

PURPOSE:To improve the operability and to attain the reduction of cost for a display device for operation keys by securing such a constitution where an operation picture can be displayed within a range that prevents no visual recognition of a primary picture and an operating part is displayed again just with a touch of a switch. CONSTITUTION:In case no input of a key signal (b) is recognized even though a fixed time passed after the superposed display of a primary picture and an operating picture no operation of a touch switch 1 is judged and only the primary picture is displayed together with erasion of the operating picture. When the switch 1 is operated during erasion of the operating picture, the operating picture is displayed again to secure an operation enable state. In such a way, the operating picture can be displayed on a display 2 only when it is desired and therefore the operability of a display device for operation keys is improved together with reduction of the cost.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a display device equipped with a touch switch used as a multi-function operating device.

BACKGROUND OF THE INVENTION In recent years, the number of centralized control type multifunctional operation display devices that use touch switches and operation key displays in an overlapping manner has increased, but there are still problems in operability and the like. - As an example, a case will be explained in which a destination is input into a map displayed on a conventional display device. FIG. 3 is a block diagram of one embodiment. The display control device 3 outputs the display signal a based on the information of the key signal sent from the operation section 1, and displays the display 2.
It is configured to display operation keys, a map, etc. superimposed on the touch switches of the operation section 1.

A method of using the conventional operation key display device as shown in FIG. 3 will be described below with reference to FIG. 4.

FIG. 5 shows a screen when arranging tickets for travel, etc., for example.

Conventionally, as shown in Figure 4 ((c)), even after entering the destination, the screen for operating cursor keys and set keys that are no longer needed remains displayed. It was common that
A recall key is provided, and after entering the destination on the screen shown in Figure 5 (2), the screen for operating cursor keys and set keys that are no longer needed can be erased as shown in Figure 6 (B). Some models are equipped with a recall key. For devices equipped with a recall key, if you want to change the destination, press the recall key again to redisplay the cursor key and set key on the screen and return to the screen shown in Diagram 6. was.

Problems to be Solved by the Invention However, in the case of a type in which the screen for operating the cursor and set keys is kept displayed as shown in the first example shown in FIG. The place names and roads on the displayed map are hidden behind the operation key display above.
There is a problem that you cannot see the necessary screen.

In addition, as shown in Figure 3, in the case of a type equipped with a recall key, when you want to use the operation screen again, press the recall key to display the operation keys, and then operate these operation keys. The operability is poor because it requires multiple steps. In addition, there is a problem in that it is necessary to secure a recall key, which also increases the cost.

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide an operation key display device that can display an operation screen on a display only when necessary and has excellent operability.

Means for Solving the Problems In order to achieve the above object, the operation key display device of the present invention includes a display that displays a main image and an operation screen, and a display that is superimposed on the front of this display and that is provided on the operation screen. A touch switch that outputs a key signal in response to the operation of the corresponding operation unit, and a display that processes the key signal input from the touch key and outputs a video signal for displaying the main image and operation screen on the display. and a control device, and if the key signal is not input even after a certain period of time has elapsed after the main image and the operation screen are displayed in a superimposed manner, the touch switch is not operated. I decided to delete only the above operation screen, and
It is characterized by comprising means for displaying only the main image, and means for displaying the operation screen again to make it operable when the touch switch is operated while the operation screen is being erased. That is.

Effects According to the above configuration, the problem that the main image is hidden behind the operation panel and becomes difficult to see is solved, and the operation panel is redisplayed just by touching the touch switch, which improves operability and improves the operability compared to the conventional example. There is no need to provide a recall key as shown in the figure, and it is possible to save space and reduce costs.

Embodiment Hereinafter, an operation key display device according to an embodiment of the present invention will be explained based on FIGS. 1 and 2. In this embodiment, a case will be described in which a destination is input on a map displayed on a display. Further, the display on the side surface will be explained using FIG. 4.

FIG. 1 shows a schematic block diagram of the operation key display device of this embodiment. First, as shown in FIG. 2 (c), the display 2 has a map as the main image and an operation screen corresponding to the scanning matrix of the touch switch 1 superimposed on the display 2. Displayed. After touching touch switch 1 to move the cursor, set the destination to "Utsunomiya" using the set key. Key signals output from each touch switch 1 are input to a microcomputer (hereinafter referred to as microcomputer) 4 that performs arithmetic processing, and control signals are output from the microcomputer 4 to the display control section 3 and the timer 6. Then, the display control section 3 displays the necessary information at the corresponding position "Utsunomiya" on the display 2, and the timer 6 starts counting time. After completing the destination setting, if you do not touch the touch switch 1, the display control device 3
Since the key signal is not input via microcomputer 4,
After a certain period of time has passed when the count by timer 5 has reached a certain value,
The display signal a causes the display 2 to display only the map, which is the main image, as shown in FIG. 4(B).

If you want to change your destination in this display state, touch any intersection of the key scanning matrix of touch switch 1, the key signal from touch switch 1 will be input to microcomputer 4, and the key signal from touch switch 1 will be input to microcomputer 4. In response to the signal instructing re-display, the display control device 3 displays a destination input screen on the display 2, as shown in FIG. 4(3), in which a map and an operation unit are displayed superimposed. Furthermore, when moving the cursor, it is sufficient to slide a finger on the touch switch 1.

The process of displaying and erasing the operation keys as described above is shown in a flowchart as shown in FIG.

As shown in FIG. 2 (3), the microcomputer 4 superimposes and displays the main image of the map and the operation image on the display, and then uses the timer activation signal e to set the timer 5 to a set value of, for example, 6 seconds. Start it up.

After the timer 5 is started, the microcomputer 4 monitors the human power of the key using the key scan output signal C and the key key scan input signal, and checks for timeout using the timeout signal f. If no key operation is performed even after 6 seconds have elapsed (no key input signal is input), see Figure 2 (
Like Bl, the operation screen is erased and only the map, which is the main image, appears on the screen. In this state, if no key operation is performed, the map-only screen continues. Regardless of the display type of the operation screen, if any touch key is touched, the operation key is displayed again and becomes operable as shown in FIG. 2 (2). If the operation continues in this state, the operation key will not be erased because the key processing and the timer are restarted every time the key is pressed manually.

As described above, according to this embodiment, the operation mouth surface can be displayed within a range that does not obstruct the visibility of the main image, and there is no need to increase the number of switches such as a reset key as in the conventional example.
It is possible to provide an operation key display device with good operability and excellent cost.

Effects of the Invention According to the present invention, the above-mentioned drawback of the conventional example in which the main image on the display is always hidden behind the display of the operation image is solved, and the purpose is displayed after reading out the operation section using the recall key shown in the conventional example. This eliminates the need for two-step operations, improving operability. Furthermore, since there is no need for a recall key or the like, it is possible to save space and reduce costs, and the above-mentioned operability is improved, as well as having great practical effects.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an operation key display device according to an embodiment of the present invention, FIG. 2 is a flowchart for explaining the operation of the device, FIG. 3 is a block diagram of a conventional operation key display device, and FIG. 4 is a block diagram of a conventional operation key display device. This figure and FIG. 5 are front views for explaining the display on the display of the same device. 1...Touch switch, 2...Display, 3...Display processing circuit, 4...
Microcomputer, 5...Timer. Name of agent: Patent attorney Toshio Nakao and 1 other person3-
・-Display processing circuit 4- Microcomputer/User 5- Timer Figure 1? ``52 Figure 3 Figure 4 (A) (Japanese) 4, Go, Ri, Sochisui, Sochi's scanning Mad 1-Tsukuzu Figure 5 (A) t13-

Claims (1)

[Claims] A display that displays a main image and an operation screen, and an optical switch or a transparent electrode switch that outputs a key signal in response to the operation of an operation section that is superimposed on the front of this display and corresponds to the operation screen. The display control device includes a touch switch, and a display control device that processes signal input from the touch switch and outputs a video signal for displaying the main image and the operation screen on the display, and displays the main image and the operation screen. means for erasing only the operation screen by determining that the touch switch is not operated even after a certain period of time has elapsed since the operation screen is displayed in a superimposed manner; An operation key display device comprising: means for displaying the operation screen again when a switch is operated to make it operable.