JP4256015B2 - Touch panel display device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a touch panel display device, and more particularly to a touch panel display device that can be cleaned without erroneous operation of dirt on a touch panel operation device operation surface.
[0002]
[Prior art]
FIG. 2 shows a conventional touch panel display device. The touch panel display device 54 shown in the figure is installed on the front surface of the display unit 53 of the display unit 52 and the display unit 52 that displays video and character information input to the display control unit 58 of the controller 57 and detects an input operation. The touch panel type operation device 51, the operation position detector 56 for detecting the operation position from the output signal of the touch panel type operation device 51, and the position information of the operation position detector 56 are transmitted to the display control unit 58 of the controller 57 and the external transmitter 61. And an operation control unit 59.
[0003]
In such a touch panel display device, the video signal from the video sending device 60 is input to the display control unit 58 of the controller 57, and the display control unit 58 controls the display 52 and displays the video on the display unit 53 of the display 52. And display character information. The touch panel type operation device 51 which is set on the front surface of the display unit 53 and can perform an input operation notifies the operation position detector 56 of the signal when a human finger touches the touch panel type operation device operation surface 55 of the touch panel type operation device 51. The operation position detector 56 detects which part of the touch panel type operation device operation surface 55 the person's finger indicates, and notifies the operation control unit 59 of the controller 57 with the XY coordinates. The operation control unit 59 transmits a display support signal to the display control unit 58 in order to display a mark on the display unit 53 of the display unit 52 on the touch panel type operation device operation surface 55 as indicated by the human finger. In 59, an operation signal is transmitted to the transmitter 61 in order to transmit information on a location indicated by a human finger on the touch panel type operation device operation surface 55 to an external device.
[0004]
[Problems to be solved by the invention]
However, since the conventional touch panel display device is configured as described above, the touch panel of the touch panel display device is particularly useful when the display is highly important and frequently used or when continuous operation is required. The operation surface of the joystick is frequently soiled by input operations, etc., which hinders display. To clean this soiling, it is necessary to temporarily turn off the power of the touch panel display device from the viewpoint of preventing erroneous operations. However, during that time, there was a problem that important display could not be performed.
[0005]
The present invention has been made to solve the above-mentioned problems, and an input operation signal from a touch panel type operation device is operated and controlled while a person cleans the touch panel type operation device operation surface of the touch panel display device. An object of the present invention is to provide a touch panel display device that can prevent erroneous operation due to cleaning by temporarily stopping input to the display unit for a certain period of time and can continue display on the display unit of the display device.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a touch panel display device according to the present invention is installed on the front surface of a display device that displays video and character information from a video transmission device via a display control unit of a controller, and the display unit of the display device. A touch panel composed of a touch panel type operation device that detects an input operation, an operation position detector that detects an operation position from an output signal of the touch panel type operation device, and an operation control unit of a controller that receives position information from the operation position detector In the display device, the touch panel display device includes a cleaning button for cleaning a touch panel type operation device operating surface of the touch panel type operating device, a time detection unit for counting a predetermined time from the start of the operation of the cleaning button, and a predetermined value from the start of the operation of the cleaning button A signal on / off switch that interrupts the position information sent from the operation position detector to the operation control unit until the time has elapsed. , And a video signal detector for stopping the interruption of the detected signal on-off switch that there has been a change in video and text information sent from the image sending apparatus.
[0007]
In this touch panel display device, pressing the clean button turns off the signal on / off switch and stops sending the position signal from the operation position detector to the operation control unit, thereby stopping the input operation function from the touch panel type operation device. It is possible to clean the touch panel type operation device operation surface without any erroneous operation.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a touch panel display device according to the present invention will be described with reference to the drawings. The touch panel display device shown in FIG. 1 is installed on the front surface of the display unit 2 for displaying video and character information input to the display control unit 9 of the controller 8 and the display unit 3 of the display unit 2 and detects an input operation. The touch panel type operation device 5, the operation position detector 7 that detects the operation position from the output signal of the touch panel type operation device 5, and the position information of the operation position detector 7 are transmitted to the display control unit 9 of the controller 8 and the external transmitter 15. A signal on / off switch 12 for turning on / off a signal is inserted between the operation control unit 10, the operation position detector 7 and the operation control unit 7. The control time of the signal on / off switch 12 is counted in the operation control unit 10. The time detection unit 11 is connected, and the operation position detector 7 is connected with a cleaning button 4 used for cleaning the touch panel operation device operation surface 6 of the touch panel operation device 5. The video input side of the shows the control unit 9 video signal detector 13 for transmitting the operation control unit 10 that the inputted video signal is connected.
[0009]
In such a touch panel display device, the video signal from the video transmission device 14 is input to the display control unit 9 of the controller 8, and the display control unit 9 controls the display 2 to display the video on the display unit 3 of the display 2. And display character information. The touch panel type operation device 5 which is set on the front surface of the display unit 3 and can perform an input operation notifies the operation position detector 7 of a signal when a human finger touches the touch panel type operation device operation surface 6 of the touch panel type operation device 5. The operation position detector 7 detects which part of the touch panel type operation device operation surface 6 the person's finger indicates, and transmits it to the operation control unit 10 of the controller 8 by XY coordinates. At this time, the operation position detector 7 and The signal on / off switch 12 between the operation control units 10 is ON. The operation control unit 10 transmits a display signal to the display control unit 9 in order to display the place indicated by the human finger on the touch panel type operation device operation surface 6 on the display unit 3 of the display unit 2. Further, the operation control unit 10 Then, an operation signal is transmitted to the external transmitter 15 in order to transmit information on a location indicated by a human finger on the touch panel type operation device operation surface 6 to an external device.
[0010]
Next, the operation of the cleaning button 4 of the touch panel display device 1 will be described. When the touch panel display device 1 has a high importance of display such as a monitoring panel and is frequently used or when continuous operation is necessary, the touch panel type operation device operation surface 6 of the touch panel display device 1 is contaminated by an input operation or the like. It occurs frequently and hinders display. When cleaning the touch panel type operation device operation surface 6, the cleansing button 4 is pressed. When the operation position detector 7 detects that the cleaning button 4 has been pressed, a pressing signal is sent to the operation control unit 10 via the signal on / off switch 12 in the ON state. The operation control unit 10 does not read any input signal from the touch panel type operation device 5 by turning off the signal on / off switch 12 for turning on / off the position signal from the operation position detection unit 7, and does not read the input signal from the touch panel type operation device 5. And the operation signal to the external transmitter 15 for transmitting the location information indicated by the human finger on the touch panel type operation device operation surface 6 to the external device is also stopped. At the same time, the timer count of the time detector 11 is started. During this time, the dirty touch panel type operation device operation surface 6 is cleaned, so that it can be cleaned without being erroneously operated. Furthermore, video and character information are displayed on the display unit 3 of the display device 2 even while all input signals from the touch panel type operation device operation surface 6 are ignored.
[0011]
Further, in order to stop the input operation from the touch panel type operation device 5 by the cleaning button 4, the timer count of the time detection unit 11 is started simultaneously when the signal on / off switch 12 is turned off. Can be prevented from forgetting the return operation by turning on the signal on / off switch 12 and automatically returning the position signal input from the operation position detector 7 to the operation control unit 10. Further, when the video signal detector 13 detects that a change has occurred in the input video signal, the video signal detector 13 sends a signal to the operation control unit 10. It is also possible to restart the input operation from the touch panel type operation device 5 by turning on the SW 12 and returning the position signal input from the operation position detector 7.
[0012]
In the above description, the cleansing button 4 is separated from the touch panel type operating device 5. However, for example, the cleansing button is displayed on the display unit 3 of the display unit 2, and the touch panel type operating device operating surface 6 corresponding to the part is displayed on the human touch panel. The same effect as described above can be achieved even if the operation position detector 7 is used to notify the operation control unit 10 that the cleaning button has been pressed.
[0013]
【The invention's effect】
As is clear from the above description, according to the cleaning button of the touch panel display device according to the present invention, even if the operation surface of the touch panel type operation device becomes dirty due to an input operation or the like, the display on the display device continues to be operated incorrectly. It is possible to safely clean the operation surface of the touch panel type operation device without doing so.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an embodiment of a touch panel display device according to the present invention.
FIG. 2 is a block diagram showing an example of a conventional touch panel display device.
[Explanation of symbols]
2... Display 3... Display section 4 of the display... Cleaning button 5... Touch panel type operation device 6. Position detector 8 ... Controller 9 ... Display controller 10 ... Operation controller 11 ... Time detector 12 ... Signal on / off switch 13 ... Video signal Detector 14... Video sending device

Claims (1)

A display (2) for displaying video and character information from the video transmission device (14) via a display control section (9) of the controller (8), and is installed in front of the display section (3) of the display. A touch panel type operation device (5) for detecting an input operation, an operation position detector (7) for detecting an operation position from an output signal of the touch panel type operation device, and the controller for receiving position information from the operation position detector In the touch panel display device (1) composed of the operation control unit (10), the touch panel display device includes a cleaning button (4) for cleaning the touch panel operation device operation surface (6) of the touch panel operation device, A time detection unit (11) that counts a predetermined time from the start of operation of the cleaning button; A signal on / off switch (12) for interrupting the position information sent to the operation control unit, and detecting that there has been a change in the video and character information sent from the video sending device, the signal on / off switch is interrupted. A touch panel display device comprising a video signal detector (13) for stopping.

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