Display input device and information processing apparatus

Abstract

To provide a display input device which enables a user to perform an operation when a touch panel is damaged even in the display input device having no physical key, and to provide an information processor.SOLUTION: In the image processing apparatus 10, the display processing portion 51 displays operation icons on the operation / display portion 6 including the touch panel 62. The damage detection unit 64 detects damage to the touch panel 62. The setting processing portion 54 sets a region corresponding to the breakage position of the touch panel 62 as a mask region. The operation detection unit 52 detects a selection operation of the user with respect to the operation icon in the operation region excluding the mask region in the display region.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a display input device and an information processing device equipped with the display input device. [Background technology]

[0002] An information processing device such as a printer may include a touch panel that can detect operations on a display surface of a display unit. For example, the information processing device may detect operations by a user on the display surface.

[0003] Furthermore, an information processing device that allows the user to continue to operate the device even if the touch panel is damaged is known as prior art (see Patent Document 1). According to this prior art, the user can continue to operate the device even if the touch panel is damaged by the user accidentally pressing the touch panel too hard. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-233931 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the above-mentioned conventional technology allows users to operate the device by using physical keys such as a numeric keypad located near the touch panel if the touch panel is damaged, and therefore cannot be applied to information processing devices that do not have physical keys.

[0006] An object of the present invention is to provide a display / input device and an information processing device that allow a user to operate the device even if the touch panel is damaged, even if the device does not have physical keys. [Means for solving the problem]

[0007] A display input device according to one aspect of the present invention includes a display processing unit, a damage detection unit, a setting processing unit, and an operation detection unit. The display processing unit displays selection targets on a display unit including a touch panel. The damage detection unit detects damage to the touch panel. The setting processing unit sets an area corresponding to a damaged position on the touch panel as an operation invalid area. The operation detection unit detects a selection operation by a user on the selection target in an operation area excluding the operation invalid area within the display area of ​​the display unit.

[0008] An information processing device according to another aspect of the present invention includes the display input device. [Effects of the Invention]

[0009] According to the present invention, it is possible to provide a display / input device and an information processing device that allow a user to operate the device even if the touch panel is damaged, even if the display / input device does not have physical keys. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a diagram showing the configuration of an image processing apparatus according to an embodiment of the present invention. [Figure 2] FIG. 2 is a block diagram showing the system configuration of an image processing apparatus according to an embodiment of the present invention. [Figure 3] FIG. 3 is a diagram showing the configuration of the operation display unit of the image processing apparatus according to the embodiment of the present invention. [Figure 4] FIG. 4 is a diagram showing a state in which the operation display unit of the image processing apparatus according to the embodiment of the present invention is damaged. [Figure 5] FIG. 5 is a diagram showing a specific example of a mask area set on the operation display unit of the image processing apparatus according to the embodiment of the present invention. [Figure 6] FIG. 6 is a diagram showing an example of display of operation icons displayed on the operation display unit of the image processing apparatus according to the embodiment of the present invention. [Figure 7] FIG. 7 is a diagram showing an example of display of operation icons displayed on the operation display unit of the image processing apparatus according to the embodiment of the present invention. [Figure 8] FIG. 8 is a diagram showing a specific example of a mask area set on the operation display unit of the image processing apparatus according to the embodiment of the present invention. [Figure 9] FIG. 9 is a diagram showing an example of operation icon information stored in the image processing device according to the embodiment of the present invention. [Figure 10] FIG. 10 is a diagram showing an example of display of operation icons displayed on the operation display unit of the image processing apparatus according to the embodiment of the present invention. [Figure 11] FIG. 11 is a flowchart showing an example of an operation detection process executed by the image processing device according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. Note that the following embodiment is an example of the present invention, and does not limit the technical scope of the present invention.

[0012] [Schematic configuration of image processing device 10] First, a schematic configuration of an image processing device 10 according to an embodiment of the present invention will be described with reference to Figures 1 and 2. Figure 1 is a cross-sectional view showing the configuration of the image processing device 10. In the following description, the up-down direction on the paper surface of Figure 1 is defined as the up-down direction D1 of the image processing device 10, the left-right direction on the paper surface is defined as the front-rear direction D2 of the image processing device 10, and the depth direction on the paper surface is defined as the left-right direction D3 of the image processing device 10.

[0013] The image processing device 10 is a multifunction device that has multiple functions, such as a scanning function for reading image data from an original, a printing function for forming an image based on the image data, a facsimile function, and a copy function. The image processing device 10 is an example of an information processing device according to the present invention. The present invention is applicable to information processing devices such as scanners, printers, facsimile machines, copy machines, personal computers, and car navigation systems.

[0014] As shown in FIGS. 1 and 2, the image processing device 10 includes an ADF (automatic document feeder) 1, an image reading unit 2, an image forming unit 3, a paper feeding unit 4, a control unit 5, an operation display unit 6, and a storage unit 7.

[0015] The ADF 1 includes a document setting section, multiple transport rollers, a document holder, and a paper discharge section, and transports documents to be read by the image reading section 2. The image reading section 2 includes a document table, a light source, multiple mirrors, an optical lens, and a CCD, and is capable of reading image data from documents.

[0016] The image forming unit 3 is capable of forming a color or monochrome image by electrophotography based on image data read by the image reading unit 2 or image data input from an external information processing device. Specifically, the image forming unit 3 includes a plurality of image forming units corresponding to C (cyan), M (magenta), Y (yellow), and K (black), an optical scanning device, an intermediate transfer belt, a secondary transfer roller, a fixing device, and a paper output tray. The paper feed unit 4 supplies sheets to the image forming unit 3. In the image forming unit 3, a color or monochrome image is formed on the sheet supplied from the paper feed unit 4, and the sheet after image formation is output to the paper output tray. Note that the image forming unit 3 may also form images by other image forming methods, such as an inkjet method.

[0017] The control unit 5 includes control devices such as a CPU, ROM, RAM, and EEPROM (registered trademark), all of which are not shown. The CPU is a processor that executes various types of arithmetic processing. The ROM is a non-volatile storage unit that pre-stores information such as control programs for causing the CPU to execute various processes. The RAM is a volatile storage unit, and the EEPROM is a non-volatile storage unit. The RAM and EEPROM are used as temporary storage memories (work areas) for the various processes executed by the CPU. In the control unit 5, the CPU executes various control programs pre-stored in the ROM. This allows the control unit 5 to comprehensively control the image processing device 10. The control unit 5 may be configured with electronic circuits such as an integrated circuit (ASIC), or may be a control unit provided separately from a main control unit that comprehensively controls the image processing device 10.

[0018] The storage unit 7 is a nonvolatile storage device, such as a nonvolatile memory such as a flash memory or an EEPROM (registered trademark), a solid state drive (SSD), or a hard disk drive (HDD).

[0019] [Configuration of operation display unit 6] Next, the configuration of the operation and display unit 6 will be described with reference to Figures 1 to 10. Figures 3 to 8 and 10 are schematic plan views showing the configuration of the operation and display unit 6.

[0020] The operation display unit 6 is a user interface in the image processing device 10. As shown in Fig. 1, the operation display unit 6 is provided on the upper part of the housing of the image processing device 10, forward of the image reading unit 2 in the front-rear direction D2.

[0021] 2, the operation and display unit 6 includes a display unit 61, a touch panel 62, a position detection unit 63, and a damage detection unit 64. The operation and display unit 6 also includes hard keys (not shown) such as a power key and a start key.

[0022] The display unit 61 displays various types of information in response to control instructions from the control unit 5. For example, the display unit 61 is a liquid crystal display. As shown in FIG. 3, the display unit 61 has a display surface 611. Various screens, such as an operation screen used for user operations, are displayed on the display surface 611. For example, the display surface 611 is rectangular.

[0023] 3, the operation display unit 6 is provided in the image processing device 10 in an orientation in which the display surface 611 is perpendicular to the up-down direction D1 and the longitudinal direction of the display surface 611 is parallel to the left-right direction D3. Note that in the image processing device 10, the operation display unit 6 may be rotatably supported by a rotation axis parallel to the left-right direction D3, and the orientation of the operation display unit 6 may be adjustable.

[0024] The outer periphery of the display surface 611 is surrounded by a frame 6A of the operation display unit 6. For example, the frame 6A is made of resin.

[0025] The touch panel 62 is capable of detecting a user's operation (touch operation) on the display surface 611. The touch panel 62 is provided below the display surface 611 in the up-down direction D1. Note that the touch panel 62 may also be provided above the liquid crystal panel.

[0026] The touch panel 62 is configured with a resistive touch sensor. For example, the touch panel 62 has a plurality of electrodes (an X-coordinate electrode pattern and a Y-coordinate electrode pattern) arranged in a matrix below the display surface 611. The X-coordinate electrode pattern and the Y-coordinate electrode pattern are arranged perpendicular to each other with a gap in the up-down direction D1, and each intersection functions as a detection electrode. The X-coordinate electrode pattern and the Y-coordinate electrode pattern are each connected to the position detection unit 63.

[0027] The position detection unit 63 detects a user's operation (touch operation) and the operation position (touch position). Specifically, when the user presses the display surface 611 with an input means such as a finger or a pen, and the X electrode and the Y electrode of the touch panel 62 come into contact, the position detection unit 63 detects the position where the X electrode and the Y electrode come into contact. The position detection unit 63 outputs the detected position information (X coordinate, Y coordinate) to the control unit 5.

[0028] Incidentally, there is a known prior art information processing device that allows the user to continue to operate the device even if the touch panel 62 is damaged. According to this prior art, the user can continue to operate the device even if the touch panel 62 is damaged by the user accidentally pressing the touch panel 62 too hard.

[0029] However, the above-mentioned conventional technology allows the user to operate the device by using a physical key installed near the touch panel 62 if the touch panel 62 is damaged, and therefore cannot be applied to information processing devices that do not have physical keys.

[0030] In contrast to this, the image processing device 10 according to the embodiment of the present invention, as will be described below, allows the user to operate the touch panel 62 even if it does not have physical keys and the touch panel 62 is damaged.

[0031] The damage detection unit 64 detects damage to the touch panel 62. FIG. 4 shows a state in which the glass of the display surface 611 is cracked due to a user accidentally pressing the display surface 611 with a finger, pen, or the like, resulting in damage to the touch panel 62. When the touch panel 62 is damaged, the X electrodes and Y electrodes are constantly in contact, making it impossible to detect the intended touch operation. Therefore, the damage detection unit 64 determines that the touch panel 62 is damaged at the contact position, for example, when the X electrodes and Y electrodes remain in contact for a predetermined period of time. In another embodiment, the damage detection unit 64 may include a sensor or camera that detects the state of the display surface 611 and determine whether or not the display surface 611 is damaged and the location of the damage based on the detection result of the sensor or camera. When the damage detection unit 64 detects damage to the touch panel 62, it outputs information indicating that the touch panel 62 is damaged and information indicating the location of the damage to the control unit 5.

[0032] An operation detection program for causing the CPU to execute an operation detection process (see FIG. 11) described below is stored in advance in the ROM of the control unit 5. The operation detection program may be recorded on a computer-readable recording medium such as a CD, DVD, or flash memory, and may be read from the recording medium and installed in a storage unit such as the EEPROM of the control unit 5.

[0033] 2, the control unit 5 includes a display processing unit 51, an operation detection unit 52, a process execution unit 53, and a setting processing unit 54. Specifically, the control unit 5 uses the CPU to execute the operation detection program stored in the ROM. As a result, the control unit 5 functions as the display processing unit 51, the operation detection unit 52, the process execution unit 53, and the setting processing unit 54. Here, a device including the control unit 5 and the operation display unit 6 is an example of a display input device according to the present invention.

[0034] The display processing unit 51 displays an operation screen used for user operations on the display surface 611. For example, when the image processing device 10 is powered on or when the operation mode of the image processing device 10 transitions from sleep mode to normal mode, the display processing unit 51 displays the operation screen on the display surface 611. For example, a plurality of operation icons and a background image are displayed on the operation screen. The operation icons are an example of a selection target of the present invention.

[0035] The operation detection unit 52 detects a user operation (touch operation) on the display surface 611. For example, the operation detection unit 52 detects a user operation on the display surface 611 based on position information (X electrode and Y coordinate) acquired from the position detection unit 63. The operation detection unit 52 detects touch operations on the display surface 611, such as a tap operation and a swipe operation.

[0036] The process execution unit 53 executes a process according to the user's operation detected by the operation detection unit 52. For example, when a tap operation on one of a plurality of operation icons displayed on the operation screen is detected, the process execution unit 53 executes a process corresponding to the operated operation icon. Furthermore, when a swipe operation on the operation screen is detected, the process execution unit 53 executes a process of changing the operation screen displayed on the display surface 611 to another operation screen having different operation icons and a different background image.

[0037] Here, when the damage detection unit 64 detects damage to the touch panel 62, the setting processing unit 54 sets an area corresponding to the damaged position on the touch panel 62 as a mask area R1 (an operation invalid area of ​​the present invention). For example, as shown in FIG. 4, when a crack occurs in the glass of the display surface 611 and the touch panel 62 is damaged, the setting processing unit 54 sets a predetermined range including the damaged position corresponding to the crack as a mask area R1, as shown in FIG. 5. Specifically, the setting processing unit 54 sets the range of detection electrodes including the damaged position among the plurality of detection electrodes (intersections of the X electrodes and the Y electrodes) corresponding to the intersections of the plurality of X electrode patterns and the plurality of Y electrode patterns as the mask area R1. In other words, the mask area R1 is an area where the detection electrodes are always in an ON state and where the user's touch operation is invalid.

[0038] When the setting processing unit 54 sets the mask area R1, the operation detection unit 52 detects a touch operation by the user in an operation area R2 excluding the mask area R1 in the display area of ​​the display surface 611. In other words, the operation area R2 is an area in which the touch operation by the user is valid.

[0039] In this way, when the damage detection unit 64 detects damage to the touch panel 62, the setting processing unit 54 sets a mask area R1 and an operation area R2, and the operation detection unit 52 detects a user's touch operation in the operation area R2 but does not detect a user's touch operation in the mask area R1. The process execution unit 53 executes a process corresponding to an operation icon selected by the user in the operation area R2 but does not execute a process corresponding to an operation touched by the user in the mask area R1. As a result, even if the touch panel 62 is damaged, it is possible to properly detect a user's touch operation in the operation area R2 and execute a process corresponding to the touch operation.

[0040] Here, if the mask area R1 overlaps with an operation icon, the user may be unable to select that operation icon. For example, if the mask area R1 is set to overlap with a specific operation icon, the user will be unable to touch the operation icon, resulting in a problem in which the process corresponding to the operation icon cannot be executed.

[0041] To solve the above problem, the display processing unit 51 may execute a process to change the display position of an operation icon into the operation area R2 when the mask area R1 overlaps the operation icon. For example, as shown in Fig. 5, if the glass on the display surface 611 is cracked and the mask area R1 is set so that it overlaps with the operation icons C1 and C2, the display processing unit 51 moves the operation icons C1 and C2 into the operation area R2 as shown in Fig. 6. This allows the user to select the operation icons C1 and C2.

[0042] 7, when the touch panel 62 is damaged, the display processing unit 51 may change the display positions of the operation icons according to the display order of the operation icons before the touch panel 62 was damaged. For example, as shown in FIG. 3, if the first operation icon ("Copy") is arranged in the upper left of the first row, the second to fourth operation icons are arranged to the right of it, the fifth operation icon ("USB drive") is arranged at the left end of the second row, and the sixth operation icon ("ID card copy") is arranged to the right of it, the display processing unit 51 changes the display positions of the six operation icons in the operation area R2 without changing the order of the first to sixth icons, as shown in FIG.

[0043] Also, depending on the location of the mask area R1, it may be difficult to change the display position of the operation icons. For example, as shown in Fig. 8, if the touch panel 62 is damaged, the mask area R1 may be set to a wide area, and the mask area R1 may overlap with the operation icons C1, C2, and C3. In this case, the operation area R2 may become narrower, and it may become impossible to arrange all of the operation icons (six operation icons) that were displayed before the touch panel 62 was damaged in the operation area R2.

[0044] In this case, the display processing unit 51 may display, in the operation area R2, an operation icon corresponding to a priority among the multiple operation icons displayed before the touch panel 62 was damaged. Specifically, the display processing unit 51 displays the operation icons in the operation area R2 based on the frequency of use of each operation icon before the touch panel 62 was damaged. For example, as shown in FIG. 9 , the storage unit 7 stores operation icon information F1 for each operation icon, which includes the operation icon's identification information (icon ID), function, display position (coordinates), and usage frequency. The usage frequency is a usage history such as the total number of times the user has selected the operation icon in the past, the total number of selections during a predetermined period, or the average number of operations during a predetermined period. The display processing unit 51 calculates a priority for each operation icon according to its usage frequency by referring to the operation icon information F1. For example, the display processing unit 51 assigns a higher priority to an operation icon that is used more frequently and a lower priority to an operation icon that is used less frequently.

[0045] The display processing unit 51 displays the operation icon with the highest priority in the operation area R2 based on the order of priority of each operation icon. The display processing unit 51 also arranges the operation icons in descending order of priority.

[0046] For example, if six operation icons were displayed on the display surface 611 and the touch panel 62 is damaged, leaving only five operation icons to be displayed in the operation area R2 (see FIG. 8), the display processing unit 51 refers to the operation icon information F1 (see FIG. 9), identifies the top five operation icons with the highest priority, and arranges the identified five operation icons in the operation area R2 in descending order of priority (see FIG. 10). The display processing unit 51 hides the operation icon with the sixth priority.

[0047] In this way, when it is not possible to display all of the operation icons that were present before the touch panel 62 was damaged in the operation area R2, the display processing unit 51 prioritizes the operation icons with higher priority and displays them in the operation area R2.

[0048] In another embodiment, the display processing unit 51 may reduce the size of the operation icon with the sixth priority and display it in the operation area R2. In yet another embodiment, when at least one operation icon of the multiple operation icons that were displayed before the touch panel 62 was damaged can no longer be displayed in the operation area R2, the display processing unit 51 may equally reduce the size of all operation icons and display them in the operation area R2.

[0049] In another embodiment, when the mask region R1 overlaps a part of the range (first range) of the operation icon and a touch operation is possible in another range (second range) of the operation icon (for example, the operation icon C2 in FIG. 5), the display processing unit 51 may display the first range and the second range in a distinguishable manner, for example, by graying out the first range.

[0050] In another embodiment, the display processing unit 51 may hide operation icons (for example, operation icons C1 and C2 in FIG. 5) that overlap the mask region R1.

[0051] [Operation detection process] 11, an example of the procedure of the operation detection process executed by the control unit 5 in the image processing device 10 will be described. Here, steps S1, S2, etc. represent the numbers of the processing procedures (steps) executed by the control unit 5. For example, the operation detection process is executed when the image processing device 10 is powered on or when the operation mode transitions from the sleep mode to the normal mode.

[0052] <Step S1> First, in step S1, the control unit 5 displays on the display surface 611 the operation screen used for user operations.

[0053] <Step S2> In step S2, the control unit 5 determines whether or not damage to the touch panel 62 has been detected. For example, if the X electrode and the Y electrode remain in contact for a predetermined period of time, the control unit 5 determines that the touch panel 62 has been damaged at the contact position. The control unit 5 may also detect damage to the touch panel 62 based on the detection result of a sensor that detects the state of the display surface 611. The control unit 5 detects damage to the touch panel 62 and identifies the location of the damage. For example, the control unit 5 identifies the location where the X electrode and the Y electrode are always in the ON state as the location of the damage. If the control unit 5 detects damage to the touch panel 62 (S2: Yes), the control unit 5 shifts the process to step S3. On the other hand, if the control unit 5 does not detect damage to the touch panel 62 (S2: No), the control unit 5 shifts the process to step S6.

[0054] <Step S3> In step S3, control unit 5 sets a mask area R1 corresponding to the damaged position of touch panel 62. For example, as shown in Fig. 4, if the glass of display surface 611 is cracked and touch panel 62 is damaged, control unit 5 sets the range of detection electrodes (intersections of X electrodes and Y electrodes) corresponding to the damaged position as mask area R1 (operation invalid area) (see Fig. 5). Control unit 5 also sets the area of ​​the display area of ​​display surface 611 excluding mask area R1 as operation area R2 (operation valid area).

[0055] <Step S4> In step S4, the control unit 5 determines whether the mask region R1 overlaps with the operation icon. If the control unit 5 determines that the mask region R1 overlaps with the operation icon (S4: Yes), the control unit 5 shifts the process to step S5. On the other hand, if the control unit 5 determines that the mask region R1 does not overlap with the operation icon (S4: No), the control unit 5 shifts the process to step S6.

[0056] For example, when a plurality of operation icons are displayed on the display surface 611, if at least one of the operation icons overlaps the mask region R1, the control unit 5 shifts the process to step S5. On the other hand, when all of the operation icons displayed on the display surface 611 do not overlap the mask region R1, that is, when all of the operation icons are displayed in the operation region R2, the control unit 5 shifts the process to step S6.

[0057] <Step S5> In step S5, the control unit 5 changes the display positions of the operation icons. Specifically, the control unit 5 changes the display positions of the operation icons overlapping the mask area R1 to within the operation area R2. For example, when the mask area R1 is set so as to overlap the operation icons C1 and C2 as shown in FIG. 5, the control unit 5 moves the operation icons C1 and C2 into the operation area R2 as shown in FIG.

[0058] Furthermore, the control unit 5 may change the display position of each operation icon based on a priority according to the frequency of use of each operation icon (see FIG. 9). The control unit 5 may change the display position of only the operation icons that overlap the mask area R1 according to the priority, or may change the display positions of the operation icons that overlap the mask area R1 and the operation icons that do not overlap the mask area R1 according to the priority.

[0059] <Step S6> In step S6, the control unit 5 determines whether or not a touch operation by the user has been detected. For example, the control unit 5 detects a touch operation when the user performs an operation to select an operation icon on the display surface 611 (see FIGS. 3 and 6, etc.). If the control unit 5 detects a touch operation by the user (S6: Yes), the control unit 5 shifts the process to step S7. On the other hand, if the control unit 5 does not detect a touch operation by the user (S6: No), the control unit 5 shifts the process to step S9.

[0060] <Step S7> In step S7, the control unit 5 determines whether the user's operation (operation position) detected in step S6 is within the operation region R2. For example, if the user has performed an operation to select an operation icon in the operation region R2 of the display surface 611 (S7: Yes), the control unit 5 shifts the process to step S8. On the other hand, if the user has performed a touch operation in the mask region R1 of the display surface 611 (S7: No), the control unit 5 shifts the process to step S9.

[0061] <Step S8> In step S8, the control unit 5 executes a process according to the user's operation (operation position) detected in step S6. For example, when the control unit 5 detects the touch operation on any one of the operation icons displayed on the operation screen that corresponds to the operation position, the control unit 5 executes a process corresponding to the operated operation icon.

[0062] On the other hand, if the control unit 5 determines that the user's touch operation detected in step S6 is in the mask area R1 (S7: No), it does not perform any processing on the operation screen and transitions the processing to step S9.

[0063] <Step S9> In step S9, the control unit 5 determines whether or not a user operation has been performed to terminate the display of the operation screen displayed on the display surface 611. For example, when the power supply to the image processing device 10 is cut off or when a user operation is performed on the operation display unit 6 to instruct a transition from the normal mode to the sleep mode, the control unit 5 determines that a user operation to terminate the display of the operation screen has been performed.

[0064] When the control unit 5 determines that a user operation to end the display of the operation screen has been performed (S9: Yes), it ends the operation detection process. On the other hand, when a user operation to end the display of the operation screen has not been performed (S9: No), the control unit 5 shifts the process to step S2 and waits for a touch operation by the user until a user operation to end the display of the operation screen is performed.

[0065] As such, the image processing device 10 includes a display processing unit 51 that displays operation icons on the display surface 611 of the operation display unit 6 including the touch panel 62, a damage detection unit 64 that detects damage to the touch panel 62, a setting processing unit 54 that sets an area corresponding to the damaged position on the touch panel 62 as a mask area R1 (operation invalid area), and an operation detection unit 52 that detects a user's selection operation on an operation icon in an operation area R2 of the display area of ​​the display surface 611 excluding the mask area R1.

[0066] According to the above configuration, if the touch panel 62 is damaged, the area corresponding to the damaged position is set as a mask area R1, and user operations on the mask area R1 are disabled. As a result, even if an electrode at the damaged position turns ON, the ON state is not determined to be due to a user operation, and only user operations on the operation area R2 outside the mask area R1 can be detected. Therefore, even in an image processing device 10 that does not have physical keys, user operations are possible if the touch panel 62 is damaged.

[0067] Furthermore, by changing the display position of the operation icon in the operation area R2 excluding the damaged portion of the touch panel 62, the touch panel 62 can continue to be used without any problems even if it deteriorates over time or the screen cracks, thereby reducing the maintenance frequency of the touch panel 62 and achieving a longer lifespan.

[0068] [Disclosure Note] The following will provide an outline of the disclosure extracted from the above-described embodiment. Note that the configurations and processing functions described in the following supplementary notes can be selected and combined as desired.

[0069] <Appendix 1> a display processing unit that displays selection items on a display unit including a touch panel; a damage detection unit that detects damage to the touch panel; a setting processing unit that sets an area of ​​the touch panel corresponding to the damaged position as an operation invalid area; an operation detection unit that detects a selection operation by a user on the selection target in an operation area excluding the operation invalid area of ​​the display area of ​​the display unit; A display input device comprising:

[0070] <Appendix 2> When the operation invalid area overlaps the selection target, the display processing unit changes the display position of the selection target to within the operation area. 2. The display and input device of claim 1.

[0071] <Appendix 3> When the operation invalid area overlaps the selection target, the display processing unit hides the selection target. 3. A display input device according to claim 1 or 2.

[0072] <Appendix 4> When the operation invalid area overlaps the selection target, the display processing unit displays, in the operation area, the selection target according to a priority among the plurality of selection targets that were displayed on the display unit before the touch panel was damaged. 4. A display input device according to any one of Supplementary notes 1 to 3.

[0073] <Appendix 5> the display processing unit displays the selection objects in the operation area based on the frequency of use of each of the selection objects before the touch panel was damaged; 5. The display and input device of claim 4.

[0074] <Appendix 6> the display processing unit, when it is not possible to display in the operation area all of the selection objects that were present before the touch panel was damaged, displays in the operation area the selection object with the highest priority; 6. A display input device according to claim 4 or 5.

[0075] <Appendix 7> a processing execution unit that executes a process corresponding to the selection selected by the user in the operation area; 7. A display input device according to any one of Supplementary notes 1 to 6. [Explanation of symbols]

[0076] 10: Image processing device 1: ADF (automatic document feeder) 2: Image reading unit 3: Image forming unit 4:Paper feed section 5: Control section 6: Operation display section 7: Storage section 51: Display processing unit 52: Operation detection unit 53: Processing execution unit 54: Setting processing section 61:Display section 62: Touch panel 63: Position detection unit 64: Damage detection unit 611:Display surface F1: Operation icon information R1: Mask area R2: Operation area

Claims

1. a display processing unit that displays selection items on a display unit including a touch panel; a damage detection unit that detects damage to the touch panel; a setting processing unit that sets an area of ​​the touch panel corresponding to the damaged position as an operation invalid area; an operation detection unit that detects a selection operation by a user on the selection target in an operation area excluding the operation invalid area of ​​the display area of ​​the display unit; A display input device comprising:

2. When the operation invalid area overlaps the selection target, the display processing unit changes the display position of the selection target to within the operation area. The display input device according to claim 1 .

3. When the operation invalid area overlaps the selection target, the display processing unit hides the selection target. The display input device according to claim 1 .

4. When the operation invalid area overlaps the selection target, the display processing unit displays, in the operation area, the selection target according to a priority among the plurality of selection targets that were displayed on the display unit before the touch panel was damaged. The display input device according to claim 1 .

5. the display processing unit displays the selection objects in the operation area based on the frequency of use of each of the selection objects before the touch panel was damaged; The display input device according to claim 4.

6. the display processing unit, when it is not possible to display in the operation area all of the selection objects that were displayed before the touch panel was damaged, displays in the operation area the selection object with the highest priority; The display input device according to claim 4.

7. a processing execution unit that executes a process corresponding to the selection selected by the user in the operation area; The display input device according to claim 1 .

8. An information processing device comprising the display input device according to any one of claims 1 to 7.

Images