JPH09319519A - Control panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a control panel with which the acceptance of switch input against the intention of a user can be prevented during the switching of display picture. SOLUTION: When the ON signal of soft key for controlling the optional function of every equipment or setting various states is applied from an LCD panel 55, an input managing part 69 checks whether the voltage level of a reloading signal 78 from a display managing part 75 is 'H' or not. At the time of 'H', the soft key for switching the picture under displaying on the LCD panel 55 is turned on and a state under switching the display picture is recognized. Then, the acceptance of input of this soft key is inhibited and such a state is displayed or a warning sound is generated by driving the buzzer of a unified remote controller 29. When the voltage level of the reloading signal 78 is 'L', the end of switching of the picture is judged, and the acceptance of input of this soft key is started again. Then, the function corresponding to the turned-on soft key displayed on the switched picture is executed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation panel used for controlling devices, and is suitable for, for example, an operation panel for integrally controlling a plurality of devices.

[0002]

2. Description of the Related Art As a control system for a plurality of devices, a water heater having a function of heating / insulating a bath water, a bath water purifying apparatus (JB) having a function of purifying / insulating a bath water, and generating air bubbles in the bath water The following describes an example of a control system having a configuration in which a bubble generator is provided.

As an operation panel for integrally controlling a plurality of bathtub devices, a unified remote controller (unified remote controller) has been developed. The unified remote control has a hard key for operating / stopping each bathtub device and a dot matrix L
An LCD panel, which is composed of a CD, a touch switch on the tube surface, and an LCD surface sheet, and which can display / erase soft keys for controlling additional functions of each device and setting various states, is provided.

[0004]

By the way, since each of the above soft keys has a unique function, for example, the screen switching soft key on the same screen as that soft key is turned on.
And switch to a screen that displays another softkey, LC
Even if the soft keys displayed at the same position on the D panel,
Naturally, the functions to be performed will be different. That is, as shown in the flowchart of FIG. 1, if the soft key being displayed when the LCD panel is touched is the switch 1, the function corresponding to the switch 1 is executed (steps S1 and S).
2, S3), and if it is switch 2, the function corresponding to switch 2 is executed (steps S1, S2,
S4).

[0005] Here, the screen switching soft key O
While the display screen is being switched by N, when a part of the LCD panel corresponding to the display area of the switch 1 which is the soft key before switching and the switch 2 which is the soft key after switching is touched, It may not be clear which function to select. Therefore, in the unified remote controller described above, when the touch operation as described above is performed during the switching of the display screen, either the method of accepting the input of the soft key before the switching or the method of accepting the input of the soft key after the switching is performed. Was adopted.

However, in the method of accepting the input of the soft key before the switching, when the user who is accustomed to the operation procedure reads the soft key after the switching in advance and continuously operates, the switching is performed against the intention of the user. There is a problem that the function of the previous soft key will be selected. On the other hand, in the method of accepting as input of the soft key after switching,
Since the soft key before switching is in the user's mind, if the user thinks that it is the soft key before switching, the function of the soft key after switching will be selected against the intention of the user. There is a problem called.

In addition, a soft key for only switching the display screen, such as a screen switching soft key, and a soft key for controlling additional functions of each device and setting various states are switched from before and after switching. If they are displayed at the same position on the LCD panel later, there is a problem that the user is confused and the number of erroneous operations is significantly increased.

Therefore, an object of the present invention is to provide an operation panel capable of preventing the reception of a switch input contrary to the user's intention while the display screen is being switched.

[0009]

The operation panel according to the first aspect of the present invention has a plurality of display screens for using one switch for different purposes and selectively switches the display screens. Therefore, even if the switch is operated while the display screen is being switched to another display screen, a means for ignoring the switch operation is provided.

According to the first aspect of the present invention, even if a switch is operated while the display screen is being switched to another display screen, the switch operation is ignored, so that the display screen is being switched. In addition, it is possible to prevent the reception of the switch input contrary to the user's intention.

In a preferred embodiment according to the first aspect of the present invention, the switch operation ignoring means continues ignoring the switch operation for a predetermined time after the display switching is completed.

Also in this embodiment, the same effect as described above can be obtained.

In the preferred embodiment described above, the switch is a soft key displayed on the display screen together with the purpose of use of the switch, but it is a hard key outside the screen that is controlled so that the purpose of use varies depending on the display screen. Of course, it doesn't matter. Further, while the switch operation ignoring means continues to ignore the switch operation, it may be provided with a notifying means for notifying that effect.

The operation panel according to the second aspect of the present invention has a first display screen for displaying soft keys corresponding to one key panel and a second display screen for displaying soft keys corresponding to a plurality of key panels. A display screen, and selectively switching between the display screens, the display screen being included in at least the display area of the soft key displayed on the second display screen while the second display screen is being displayed. When any one of the key panels is operated, a determination unit that determines that the soft key is operated is provided.

According to the second aspect of the present invention, any one of the key panels included in the display area of at least the soft key displayed on the second display screen during the display of the second display screen. Since it is determined that the soft key is operated when is operated, any operation of the soft key does not cause an erroneous operation of double pressing.

[0016]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 2 is a front view of the unified remote controller included in the control system for a plurality of devices according to the first embodiment of the present invention. This unified remote control is for integrally controlling a plurality of bathtub devices such as a water heater, a JB and a bubble generator as a plurality of devices.

In FIG. 2, on the front surface of the casing of the unified remote controller 29, an LCD panel 55 is arranged which is driven by applying a predetermined voltage. Further, on the front surface of the casing of the unified remote controller 29, in addition to the LCD panel 55, a screen on / off key 59, a function selection key 61 for selecting some predetermined functions, and a bathtub device 23 to be operated are selected. A device selection key 63 is also arranged. Each of the screen on / off key 59 to the device selection key 63 is a hard key having a mechanical configuration, and these configure the hard key operation unit 65 shown in FIG. 7.

The configuration of each of the above components will be further described.
As described above, the LCD panel 55 is composed of the dot matrix LCD, the tube surface touch switch (shown by reference numeral 56 in FIG. 3) attached to the surface thereof, and the LCD surface sheet. As shown in FIGS. 4 to 6, the LCD panel 55 includes, for example, a status display such as a bath temperature and a water level, and detailed function selection keys related to devices and functions selected by the various selection keys 61 to 63. Such image information is displayed by the control unit 67 (see FIG. 7) described later.

The function selection key 61 and the device selection key 63 are specifically as follows.

As the function selection keys 61, there are a purification key and a shower priority key for selecting the bath water purification function of JB, and a bath key for selecting the automatic operation function of the water heater.

Further, as the equipment selection key 63, a hot water heater ON / OFF key for selecting ON / OFF of the water heater, a blow key for selecting ON / OFF of the bubble generator, and a built-in intercom (not shown). There is a call key to use.

In this embodiment, the operation switches and main function switches of each bathtub device 23 are arranged as hard keys on the front surface of the casing of the unified remote controller 29, and the additional function switches and various setting switches of each bathtub device 23 are displayed. / A soft key displayed on the LCD panel 55 so that it can be erased. The names of the switches are classified by function, not by device, thereby improving operability with emphasis on operability. The unified remote controller 29 incorporates a control unit 67 having a functional configuration as shown in FIG. 7 and a communication interface (hereinafter abbreviated as “communication I / F”) 77 for bathtub equipment.

FIG. 3 shows the structure of the tube surface touch switch provided in the LCD panel 55 of the unified remote controller 29 shown in FIG.

In FIG. 3, the tube surface touch switch 56
Is divided into a plurality of blocks having different display areas as shown in the figure, and each block is independent to perform a function corresponding to each soft key displayed at the same position as each block on the LCD panel 55. The input is accepted as a switch.

FIG. 4 shows a main screen on which soft keys displayed on the LCD panel 55 of the unified remote controller 29 shown in FIG. 2 are displayed.

The main screen shown in FIG. 4 is the water heater, J
B. This is displayed when each bathtub device of the bubble generator is connected. For example, when the soft key "bath temperature / water level" in FIG. 4 is turned on, a screen switching command signal is output from the block 56a of the tube surface touch switch 56 corresponding to this, and the command screen causes the display screen of the LCD panel 55 to be displayed. Switch to the bath setting screen shown in FIG. In the bath setting screen of FIG. 5, the soft keys “shoulder” and “mode” in the main screen of FIG. 4 are set to temperature “+” and “−”, and the soft key “random ON / OFF” is set to the water level “+”. , "-"
They are rewritten respectively.

On the other hand, turn on the soft key "Help" in FIG.
Then, a screen switching command signal is output from the block 56b of the tube surface touch switch 56 corresponding thereto, and the command screen switches the display screen of the LCD panel 55 to the help screen shown in FIG. The help screen of FIG. 6 is obtained by rewriting the soft keys in the lower half of the screen such as the soft keys “back”, “foot”, and “continuous heat retention” in the main screen of FIG. 4 to help reference keys. .

When the user turns on the soft key "Help" in FIG. 4, the main screen is switched to the help screen. For example, the soft key "Plenty" in FIG. The key "Wake up" will be displayed.

In this case, if the method of accepting as input of the soft key before the screen switching described above is adopted, the user turns on the display position of "wakashiage" with the intention of "wakakeage", and in fact, "full" It is assumed that the function of was selected. In addition, if you adopt the method that accepts as soft key input after screen switching,
When the user turns on the display position of "plenty" with the intention of "plenty", it is actually assumed that the user has selected the function of "wakashiage".

Therefore, the unified remote controller 2 according to the present embodiment
9, the control unit 6 having the functional configuration shown in FIG.
7 is provided and the processing operations as shown in FIGS. 8 and 9 are executed to cope with so-called time-series changes of the soft key display screen.

FIG. 7 is a block diagram showing a functional configuration of the unified remote controller 29 shown in FIG.

The unified remote controller 29 is provided with a plurality of bathtub devices 2 as described above via the communication and power feeding cable 30.
3, the LCD panel 55, the hard key operation unit 65, the control unit 67, and the communication I / F 77.
With.

The control section 67 has an input management section 69.
A state management unit 71, a communication management unit 73, a display management unit 75, and a timer 79.

The input management section 69 functions as an input interface between the LCD panel 55, the hard key operation section 65, and the control section 67. Input management unit 69
Performs a process of accepting or not accepting key input information from the hard key operation unit 65 or the LCD panel 55, a process of outputting the accepted key input information to the state management unit 71, and the like.

That is, the input management section 69 is provided with the LCD panel 5
When the ON signal of the screen switching soft key is input from 5, the state management unit 71 is notified of this. Input management unit 69
Is based on the display information from the display management unit 75, a rewrite signal (that is, a signal for switching the display screen of the LCD panel 55) 78, and an output signal from a timer 79 activated by the rewrite signal 78. Switch inputs other than the ON signal from 55 are prohibited. In the present embodiment, when the voltage level of the rewrite signal is "H", or the voltage level of the rewrite signal 78 is "L" and the voltage level of the output signal of the timer 79 indicating that the time limit operation is in progress is "H". At this time, the input management unit 69 prohibits switch input from the LCD panel 55. Then, the state management unit 71 is notified that the switch input is prohibited.

Regardless of whether or not the voltage level of the output signal from the timer 79 is "H", only when the voltage level of the rewrite signal is "H", other than the above ON signal from the LCD panel 55. The switch input of may be prohibited.

The screen switching soft key is turned off,
When it is confirmed that the voltage level of the rewrite signal becomes "L" or the voltage level of the output signal of the timer 79 becomes "L" by the notification from the input management section 69 to the state management section 71, the input management section 69 restarts acceptance of the switch input from the LCD panel 55.

The state management section 71 is provided with each bathtub device 23 through the communication management section 73, the communication I / F 77, and the cable 30.
Based on the function of confirming connection / non-connection of the bathtub device 23 based on the command signal given from the hard key operation unit 65 or the LCD panel 55 through the input management unit 69
And the function of executing the sequence control of. The state management unit 71 further, based on the notification from the input management unit 69,
It also has a function of outputting a display screen selection command to the display management unit 75 in order to select a screen to be displayed on the LCD panel 55 (switch the display screen).

The confirmation of the above connection / non-connection by the state management unit 71 is performed, for example, by first using 8-bit or 16-bit serial data corresponding to each bathtub device 23 in a communication management unit 73 and communication I / It transmits from F77 to each bathtub apparatus 23 through the cable 30. When each bathtub device 23 receives each data, the state management unit 71
Confirmation data is sent to the status management unit 71 side to confirm that the confirmation data is returned.

In the present embodiment, when this communication is normally performed three times in succession, it is determined as "connection", and when normal communication cannot be performed nine times in succession, it is determined as "non-connection". I am trying to do it. In addition to the above, as a specific communication method, between the bathtub devices 23 and the state management unit 71, a protocol is common to all bathtub devices, and only the data is different for each bathtub device, and the data is common. There is a method of making the protocol different, or a method of making the data and the protocol common and making only the confirmation data different. In addition, data is unilaterally periodically transmitted from each bathtub device 23 to the state management unit 71, and when the state management unit 71 does not receive this data for a predetermined time or more, “not connected May be determined.
The state management unit 71 uses the display management unit 7 based on the determination result.
5, the image information to be displayed on the LCD panel 55 (a large number is set according to the combination of installed bathtub devices) is selected.

The state management section 71 also follows the operation processing and sequence control programs that are incorporated in advance.
A sequence of each bathtub device 23 through the communication management unit 73, the communication I / F 77, and the cable 30 based on the key input information (key operation information of the hard key operation unit 65 or the LCD panel 55) passed through the input management unit 69. Execute control.

The state management unit 71 further includes an input management unit 69.
Upon recognizing that the screen switching soft key being displayed on the LCD panel 55 is turned on based on the notification from, the display is switched from the currently displayed screen to another screen corresponding to the screen switching soft key. Instruct the display management unit 75. On the other hand, when it is recognized that the screen switching soft key has been turned off, the display management unit 75 is notified to that effect.

The display management unit 75 functions as an output interface between the LCD panel 55, the hard key operation unit 65, and the control unit 67, and the state management unit 7
It operates under the control of 1.

In this operation, image information (for example, FIG. 2) suitable for the connection state of the bathtub device 23 (that is, which one of the water heater, JB, and bubble generator is connected) at that time is displayed.
There is a process of selecting the original screen displayed on the LCD panel 55, the main screen of FIG. 4) and outputting to the LCD panel 55. There is also processing for changing the image information displayed on the LCD panel 55 based on the key input information received by the input management unit 69.

Further, in response to a command from the state management unit 71, the display information and the rewriting signal 78 of the voltage level "H" are output to the input management unit 69, and the screens displayed on the LCD panel 55 are switched. The display image information corresponding to the soft key is selected, and the selected image information for switching the display screen is output to the LCD panel 55.

Next, the control operation of the unified remote controller 29 configured as above will be described with reference to the flowchart of FIG.

First, when it is recognized that an ON signal of a soft key for controlling an additional function of each device or setting various states is given from the LCD panel 55 (step S).
101) and the input management unit 69 checks whether the voltage level of the rewrite signal 78 from the display management unit 75 is “H” or “L”. If the result of this check is "H", it is recognized that the screen switching soft key of the screen currently displayed is turned on, and the screen currently displayed on the LCD panel 55 is being switched, The acceptance of the soft key input in step S101 is prohibited. The LCD panel 55 indicates that the acceptance of soft key input is prohibited.
Or a buzzer (not shown) built in the unified remote controller 29 is driven to generate a warning sound (step S102).

On the other hand, the voltage level of the rewrite signal 78 is "H".
Is changed to "L", it is judged that the above-mentioned screen switching is completed (step S102), and the soft key input for controlling the above-mentioned additional functions of each device and setting various states is performed. Will be accepted again. here,
If the softkey displayed on the screen after switching is the switch 1 and the softkey turned on in step S101 is this switch 1 (step S10).
3), the function corresponding to the switch 1 is executed (step S104). On the other hand, the softkey displayed on the screen after switching is the switch 2, and accordingly, step S10
When the soft key turned on in 1 is the switch 2 (step S103), the function corresponding to the switch 2 is executed (step S105).

As described above, according to the first embodiment of the present invention, when the display switching of the screen being displayed on the LCD panel 55 is being performed, the control and various functions of the additional function of each device are performed. It has been decided to prohibit acceptance of soft key inputs for setting the status. Therefore, even if the user operates the soft key during the switching of the display screen, it is possible to prevent the reception of the switch input contrary to the user's intention.

Further, since the acceptance of the soft key input is prohibited while the display of the displayed screen is being switched, the soft key input is accepted in parallel with the screen display switching process. Since it is not necessary to perform the accompanying processing, the processing load can be distributed.

Furthermore, since the display or warning sound is generated to indicate that the acceptance of the soft key input is prohibited, the user can clearly recognize the above situation, and an appropriate switch can be used. Operation can be expected.

FIG. 9 is a flowchart showing the control operation of the unified remote controller 29 according to the modification of the first embodiment of the present invention.

In this modified example, after the switching of the screen displayed on the LCD panel 55 is completed (step S112), until the predetermined time elapses (until the timer 79 finishes the time-delay operation), the steps are performed. Only in that the acceptance of the soft key input in S111 is prohibited,
This is different from the processing operation in the above embodiment. The other points are the same as those in the above-described embodiment, and thus the description thereof is omitted.

Also in this modification, the same effect as in the above embodiment can be obtained.

FIG. 10 is an explanatory diagram of a tube surface touch switch to which the second embodiment of the present invention is applied.

This tube surface touch switch 58 has the same structure as the tube surface touch switch 56 shown in FIG. However, for convenience of explanation of the second embodiment of the present invention, which is characterized by the processing operation for coping with the spatial change of the display area of the soft key, the blocks are respectively denoted by the symbols A to U. is there. Also in the tube surface touch switch 58 according to the present embodiment, each block A to U is independent so as to perform a function corresponding to each soft key displayed at the same position as each block A to U on the LCD panel. It is designed to accept input as a switch.

Here, since the type G bubble generator is connected to the bathtub, a screen as shown in FIG. 11 is displayed on the LCD.
When it is displayed on the panel, the soft key "Air blow" can be seen clearly by comparing and comparing FIG. 10 and FIG.
The display area of will extend over both areas of the blocks L and M. In addition, the display area of the soft key "Full" is
It will span both areas of the blocks R and S.

Next, when the screen as shown in FIG. 12 is displayed on the LCD panel due to the type D bubble generator being connected to the bathtub, the display area of the soft key "mode" is a block. In both areas E and J, the display area of the soft key "back" is in both areas K and L.
They will be straddling each other. Further, the display area of the soft key "foot" is in both the areas of the blocks M and N, the display area of the soft key "random" is in the area of both blocks I and O, and the display area of the "abundant" soft key. Will be in the areas of both blocks R and S, respectively.

Further, when the screen shown in FIG. 13 is displayed on the LCD panel by turning on the soft key “Help” shown in FIGS. 11 and 12, the soft key “hot water” is pressed. The display area extends over both of the blocks L and M, and the display area of the soft key "Wake up" extends over both the areas of blocks R and S.

As described above, for the purpose of improving the appearance (design) and the usability, a soft key display screen (enlargement key) of a wide area extending over two or more block areas as shown in FIGS. When the user turns on the vicinity of the boundary of each block while the display screen is set, each block is continuously turned on.

Therefore, in the present embodiment, when a soft key display screen of a wide area extending over two or more block areas is displayed, at least one of the blocks is turned on and a signal is output from that block. When output, the signal is configured to be accepted as an output signal from a specific one predetermined block.

For example, if the user turns on near the boundary of blocks K and L corresponding to the display area of the soft key "back" when the screen of FIG. 12 is displayed, the blocks K and L are respectively turned on. A signal will be output. But,
Even if one or both of the blocks K and L are turned on, if the signals from the blocks K and L are all accepted as a signal, the signals from the blocks K and L are not continuously input, and Even when the signal is given only from L, it is accepted as the signal of the block K, so that no problem occurs. Of course, it does not matter if the signal from the blocks K and L is received as the signal from the block L.

FIG. 14 is a flow chart showing the processing operation according to the second embodiment of the present invention. This flowchart is a generalization of the processing operation when the enlarged key display screen as shown in FIGS. 11 to 13 is displayed on the LCD panel.

In FIG. 14, first, the input management unit 69
Is an expansion key including soft keys spanning a plurality of blocks X and Y (adopted for generalization of the blocks A to U shown in FIG. 10, and the blocks X and Y are not shown). Check whether the display screen is being displayed.
As a result of this check, when it is determined that the block is being displayed (step S121), it is checked whether or not one or both of the blocks X and Y are turned on, and the blocks X and Y are checked.
Is calculated as a signal from block X, and the signal from Y is canceled (step S122).

If it is determined in step S121 that the enlarged key display screen is not being displayed, the input management unit 6
When recognizing that the soft key corresponding to the block X has been turned on, 9 notifies the state management unit 71 of this (step S123), and the state management unit 71 performs control corresponding to the soft key (step S123). Step S124). Also,
The soft key corresponding to the block Y of the input management unit 69 is O
When it is recognized that N has been done (step S125),
The state management unit 71 performs control corresponding to the soft key (step S126).

According to the present embodiment, for example, even when the signal from each block is continuously output by turning on the vicinity of the boundary of each block corresponding to the soft key in the wide area, the above-mentioned identification is performed. Will be accepted only as an output signal from one of the blocks. for that reason,
Even if any block corresponding to the soft key is turned on, it does not cause an erroneous operation of double pressing.

FIG. 15 is a block diagram of a logic circuit according to a modification of the second embodiment of the present invention.

In this modification, the above-mentioned processing is performed by the OR element 8
1 and AND elements 83 to 87.

That is, when the voltage level of the signal indicating that the enlargement key display screen is being displayed (wide area switch display signal) is "H", the gates of the AND elements 83 and 87 are closed. Therefore, as shown in FIG. 16A, if at least either the voltage level of the signal from the block X or the voltage level of the signal from the block Y is “H”, the output signal from the OR element 81 Has a voltage level of "H". Since the gate of the AND element 85 is opened by the wide area switch display signal, the voltage level of the output signal from the AND element 85, that is, the signal corresponding to the block X, as shown in FIG. 16B. Voltage level of "H" becomes "H".

On the other hand, when the voltage level of the wide area switch display signal is "L", the gate of the AND element 85 is closed and the gates of the AND element 83 and the AND element 87 are opened. Therefore, the voltage levels of the signals from the blocks X and Y become the voltage levels of the signals corresponding to the blocks X and Y as they are.

Also in this modification, the same effect as in the second embodiment can be obtained.

It should be noted that the above-mentioned contents are only related to the respective embodiments of the present invention and modifications thereof, and it goes without saying that the present invention is not limited to the above contents.

[0074]

As described above, according to the present invention,
It is possible to provide an operation panel capable of preventing the reception of a switch input contrary to the user's intention during the switching of the display screen.

[Brief description of drawings]

FIG. 1 is a flowchart showing a processing operation of a conventional unified remote controller.

FIG. 2 is a front view of the unified remote controller of the control system for a plurality of devices according to the first embodiment.

FIG. 3 is a configuration diagram of a tube surface touch switch included in the LCD panel of the unified remote controller of FIG.

FIG. 4 is a diagram showing a main screen displayed on the LCD panel of FIG.

5 is a diagram showing a soft key display screen for switching from the main screen of FIG.

FIG. 6 is a view showing a soft key display screen for switching from the main screen of FIG.

FIG. 7 is a block diagram showing a functional configuration of the unified remote controller shown in FIG.

FIG. 8 is a flowchart of a control operation of the unified remote controller according to the first embodiment.

FIG. 9 is a flowchart of a control operation of the unified remote controller according to the modified example of the first embodiment.

FIG. 10 is an explanatory view of a tube surface touch switch to which the second embodiment is applied,

FIG. 11 is a view showing an enlarged key display screen displayed on the LCD panel of the second embodiment.

FIG. 12 is a view showing an enlarged key display screen displayed on the LCD panel of the second embodiment.

FIG. 13 is a view showing an enlarged key display screen displayed on the LCD panel of the second embodiment.

FIG. 14 is a flowchart showing a processing operation according to the second embodiment.

FIG. 15 is a configuration diagram of a logic circuit according to a modification of the second embodiment.

FIG. 16 is a timing chart according to a modified example of the second embodiment.

[Explanation of symbols]

 23 Bathtub device 29 Unified remote control 30 Communication and power supply cable 55 LCD panel 59 Screen point / off key 61 Function selection key 63 Device selection key 65 Hard key operation part 67 Control part 69 Input management part 71 State management part 73 Communication management part 75 Display Management unit 77 Communication I / F 79 Timer 81 OR element 83, 85, 87 AND element

Claims (5)

[Claims] 1. An operation panel having a plurality of display screens for using one switch for different purposes, the display screen being switched to another display screen for selectively switching the display screens. An operating panel comprising means for ignoring the switch operation even when the switch is operated during the operation. 2. The operation panel according to claim 1, wherein the switch operation ignoring means continues ignoring the switch operation for a predetermined time after completion of the display switching. 3. The operation panel according to claim 1, wherein the switch is a soft key displayed on the display screen together with a purpose of use of the switch. 4. The operation panel according to claim 1, wherein the switch operation ignoring means further includes an informing means for informing that while the switch operation is being ignored. . 5. A first display screen for displaying soft keys corresponding to one key panel, and a second display screen for displaying soft keys corresponding to a plurality of key panels. In an operation panel for selectively switching the screen display, any one key panel included in a display area of at least the soft key displayed on the second display screen during the display of the second display screen. An operation panel, comprising: a determination unit that determines that the soft key is operated when is operated.