JP2016018297A - Touch panel device, display control method, display control program, and cover for touch panel device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a touch panel device, a display control method, a display control program, and a cover for a touch panel device with which both operability when using a cover and visibility of display can be improved.SOLUTION: A touch panel includes a display part, and a position detection sensor for detecting a touch of a finger to a specific area, which is at least a partial area of the display part. When a cover for copying is not attached to the touch panel, characters, numerals, or symbols are displayed in the specific area. When the cover for copying is attached to the touch panel and the attachment is notified to a user, the characters, numerals, or symbols that have been displayed in the specific area are displayed in an adjacent area adjacent to the specific area.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a touch panel device including a touch panel, a display control method in the touch panel device, a display control program installed in a computer of the touch panel device, and a cover for the touch panel device.

  Conventionally, an electronic device such as an MFP (Multi-Function Peripheral) equipped with a touch panel is known. The touch panel is an input device having a configuration in which a touch sensor is superimposed on a display. A user can input information to an electronic device equipped with a touch panel by touching a software key displayed on the display with a finger or the like (touch operation).

  In order to improve the operability of the touch panel, it has been proposed to attach a transparent cover to the touch panel. The transparent cover is formed with an operation effective area for enabling the touch operation by the user and an operation invalid area for invalidating the touch operation by the user. In a state where the transparent cover is attached to the touch panel, software keys are displayed on the touch panel at positions overlapping the operation effective area. When the operation effective area is touched, information associated with the software key is input.

JP2013-77130A

  When the cover is attached to the touch panel, the distinction between the operation effective area and the operation invalid area becomes clear, so that the operability of the touch panel is improved. However, when the cover is attached to the touch panel, the software key arranged under the effective operation area of the cover is visually recognized, so that the visibility of the software key is lowered.

  An object of the present invention is to provide a touch panel device, a display control method, a display control program, and a touch panel device cover, which can achieve both improvement in operability by the cover and improvement in display visibility.

  In order to achieve the above object, a touch panel device according to one aspect of the present invention includes a display unit and a contact detection unit for detecting contact of a contact body with a specific region that is at least a partial region of the display unit. A display control unit, a cover detection unit for detecting that a cover covering at least a specific area of the touch panel is attached to the touch panel, and a display control unit for controlling display on the display unit, When the cover detection is not detected by the cover detection unit, characters, numbers or symbols are displayed in the specific area. When the cover detection is detected by the cover detection unit, the cover detection unit Display letters, numbers or symbols.

  According to this configuration, the touch panel includes the display unit and the contact detection unit for detecting the contact of the contact body with the specific region that is at least a partial region of the display unit. When the cover is not attached to the touch panel, letters, numbers or symbols are displayed in the specific area. When a cover is attached to the touch panel and the attachment is detected, the characters, numbers, or symbols displayed in the specific area are displayed in an area adjacent to the specific area.

  By attaching the cover to the touch panel, for example, the distinction between the specific area and other areas can be clarified, and the operability can be improved. Moreover, even if it becomes difficult to visually recognize the specific area of the touch panel by attaching the cover to the touch panel, the letters, numbers or symbols displayed in the specific area are moved and displayed in the adjacent area. The letters, numbers or symbols can be viewed well.

  Therefore, the improvement of the operativity of the touch panel by a cover and the improvement of the visibility of a display can be made compatible.

  You may further provide the sensitivity control part which makes the detection sensitivity of a contact detection part high when compared with the case where attachment of a cover is not detected by the cover detection part, when the attachment of a cover is detected by the cover detection part.

  For example, if the thickness of the part facing the specific area in the cover is made larger than the thickness of the other part, the distinction between the specific area and the other area becomes clearer. In addition, the reaction force from the cover can be felt when the user presses the specific area. As a result, operability can be further improved. However, when the cover having such a configuration is used, there is a possibility that the detection sensitivity of the contact detection unit in the specific region is lowered.

  When the cover is attached to the touch panel, the detection sensitivity of the contact detection unit in the specific region is increased compared to when the cover is not attached to the touch panel. Thereby, while further improving the operativity of a touch panel, the contact of the contact body to a specific area | region can be detected favorably.

  The contact detection unit further detects contact of the contact body with the third region, which is a region of the display unit other than both of the specific region and the adjacent region, and the display control unit detects the attachment of the cover by the cover detection unit. Regardless of whether or not it is present, letters, numbers or symbols may be displayed in the third area.

  According to this configuration, the contact detection unit detects contact of the contact body with the third region outside both the specific region and the adjacent region. For example, if the thickness of the portion of the cover that faces the third region is smaller than the surrounding thickness, that is, if the portion of the cover that faces the third region is formed as a recess, go to the third region. Inadvertent contact of the contact body can be prevented. As a result, the operability of the touch panel can be further improved. When a cover having such a configuration is used, the decrease in visibility (light transmittance) of the third region is small, so that characters, numbers, or symbols are displayed in the third region regardless of whether the cover is attached to the touch panel. Even in such a case, the characters, numbers, or symbols displayed in the third region can be viewed well.

  When the cover detection is detected by the cover detection unit, the sensor may further include a sensitivity control unit that increases the detection sensitivity of the contact detection unit in the specific region as compared to when the cover detection is not detected by the cover detection unit. Good.

  The sensitivity control unit may lower the detection sensitivity of the contact detection unit in the third region than the detection sensitivity of the contact detection unit in the specific region.

  According to this configuration, the detection sensitivity of the contact detection unit in the third region is made lower than the detection sensitivity of the contact detection unit in the specific region. Thereby, when the contact body inadvertently contacts the third region, the contact can be prevented from being detected. As a result, an erroneous input based on an erroneous operation in the third region can be suppressed.

  The contact detection unit detects that a predetermined identification pattern formed on the cover is in contact with the display unit, and the cover detection unit detects contact of the identification pattern with the display unit by the contact detection unit. Thus, the attachment of the cover and the type of the cover may be detected.

  According to this configuration, for example, when an identification pattern corresponding to the type of cover is formed on the cover, it is detected that the cover is mounted on the touch panel by detecting contact of the identification pattern with the display unit. The Therefore, the configuration of the cover can be simplified as compared with a configuration in which an IC tag for identification is provided on the cover.

  Note that the present invention can be realized not only in the form of a touch panel device but also in the form of a program installed in a computer of a display control method in a touch panel device and a patch panel device, for example.

  A cover according to one aspect of the present invention includes a display unit and a touch panel having a contact detection unit for detecting contact of a contact body with a specific region that is at least a partial region of the display unit, and a display on the display unit A cover for a touch panel device comprising a display control unit for controlling the touch panel, the cover being attached to the display unit, covering at least a specific region of the touch panel, and facing the specific region when mounted on the display unit When the part is attached to the display unit, the character, number, or symbol that is adjacent to the specific part and displayed in the specific area by the display control unit when the cover is not attached to the display unit is displayed. An adjacent portion facing the adjacent region, and the light transmittance of the specific portion is lower than the light transmittance of the adjacent portion.

  The thickness of the specific part of the cover is preferably larger than the thickness of the adjacent part.

  According to the present invention, even when the cover is attached to the touch panel, it is possible to improve both the operability of the touch panel device and the visibility of the display.

FIG. 2 is a perspective view of the MFP according to the embodiment of the present invention as viewed from the upper left front side. 2 is a block diagram illustrating an electrical configuration of the MFP. FIG. It is a conceptual diagram which shows the example of a display of a touchscreen in case MFP is in copy mode, and shows the state in which the touchscreen cover is not mounted | worn. 3 is a conceptual diagram illustrating an example of a touch panel cover for a copy mode of an MFP. FIG. 3 is a conceptual diagram illustrating an example in which a touch panel cover for a copy mode of the MFP is attached to the touch panel. FIG. It is a conceptual diagram which shows the example of a display of a touch panel in case MFP is in scan mode, and shows the state in which the touch panel cover is not mounted | worn. 3 is a conceptual diagram illustrating an example of a touch panel cover for a scan mode of the MFP. FIG. 3 is a conceptual diagram illustrating an example in which a touch panel cover for a scan mode of the MFP is attached to the touch panel. FIG. It is a conceptual diagram which shows the example of a display of a touchscreen in case MFP is in telephone mode, and shows the state in which the touchscreen cover is not mounted | worn. 3 is a conceptual diagram illustrating an example of a touch panel cover for a telephone mode of an MFP. FIG. 3 is a conceptual diagram showing an example in which a touch panel cover for a telephone mode of the MFP is attached to the touch panel. FIG. It is a conceptual diagram which shows the example of a display of a touchscreen in case MFP is in fax mode, and shows the state in which the touchscreen cover is not mounted | worn. 3 is a conceptual diagram illustrating an example of a touch panel cover for a fax mode of an MFP. FIG. 3 is a conceptual diagram illustrating an example in which a touch panel cover for a fax mode of the MFP is attached to the touch panel. FIG. It is a flowchart which shows the flow of the setting process at the time of the cover for touchscreens mounting | wearing.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

<Overall configuration>

  As shown in FIG. 1, an MFP (Multi-Function Peripheral) 1 as an example of a touch panel device includes a printer body 2, a scanner body 3, and an ADF (Auto Document Feeder) 4.

  In the following description, the up / down, left / right, and front / rear directions defined when the MFP 1 placed on a plane is viewed from the side where an operation panel 7 (described later) is provided are used.

  An image forming unit 10 (see FIG. 2) is accommodated in the printer main body 2. The image forming unit 10 is a device that performs printing (color printing or monochrome printing) based on image data and forms an image on a sheet. The image forming method may be an electrophotographic method or an inkjet method.

  A paper feed tray 5 is provided at the bottom of the printer body 2. The paper feed tray 5 is configured to accommodate a plurality of sheets in a stacked state. A paper discharge tray 6 is formed on the upper surface of the printer main body 2. The sheets accommodated in the paper feed tray 5 are sent one by one from the paper feed tray 5 into the printer main body 2 and conveyed through the printer main body 2 toward the paper discharge tray 6. While the sheet is conveyed through the printer main body 2, an image is formed on the sheet by the image forming unit 10. The sheet (printed material) on which the image is formed is discharged to the paper discharge tray 6.

  The scanner body 3 is disposed above the printer body 2, and the ADF 4 is disposed above the scanner body 3.

  An image reading unit 20 (see FIG. 2) is accommodated in the scanner body 3. The image reading unit 20 is a device that reads an image formed on a sheet inserted into the ADF 4 and acquires image data.

  The MFP 1 also includes an operation panel 7. The operation panel 7 is disposed, for example, at the front end of the scanner body 3. The operation panel 7 has NFC (Near Field Communication) for performing wireless two-way communication between a touch panel 30 for displaying various information and various inputs and a non-contact IC card such as an ID card. An interface 40 (hereinafter referred to as NFC 40) is provided.

<Electrical configuration>

  The touch panel 30 is, for example, a resistive film type touch panel. As shown in FIG. 2, the touch panel 30 includes a display unit 31 and a position detection sensor 32 as an example of a contact detection unit. The display part 31 consists of a liquid crystal display, for example. The position detection sensor 32 includes two metal thin films (hereinafter referred to as “resistive films”) disposed to face each other with a space therebetween. When the surface of the touch panel 30 is pressed with a finger or the like as an example of a contact body (touch operation), the resistance value changes due to the contact between the two resistive films. The position detection sensor 32 detects the pressed position based on the change in resistance value. On the touch panel 30, various instructions and information can be input by a touch operation.

  The MFP 1 includes a network interface (I / F) 50, a USB (Universal Serial Bus) interface (I / F) 60, a facsimile (I / F) interface 70, an ASIC (Application Specific Integrated Circuit) 81, a ROM 82, a RAM 83, and An HDD (Hard Disk Drive) 84 is provided.

  The network interface 50 is an interface for communication with an external device such as a PC (personal computer) connected to a LAN (Local Area Network). The communication method may be a wireless communication method or a wired communication method.

  The USB interface 60 is an interface (USB port) for connecting a removable medium such as a USB memory. The MFP 1 has a direct print function. The direct print function is a function for capturing and printing a file stored in a removable medium.

  The facsimile interface 70 is an interface for connection with a public telephone network used for telephone and facsimile communication.

  The ASIC 81 includes a CPU 85 as an example of a cover detection unit, a display control unit, and a sensitivity control unit. The ASIC 81 receives an instruction by a touch operation on the touch panel 30, identification information read from the ID card by the NFC 40, and the like.

  Further, a print job transmitted from an external device is input to the ASIC 81 via the network interface 50.

  The CPU 75 controls the image forming unit 10, the image reading unit 20, and the touch panel 30 by executing programs for various processes based on information input to the ASIC 81, and performs communication via the network interface 50. Control.

  The ROM 82 stores programs executed by the CPU 85 and various data.

  The RAM 83 is used as a work area when the CPU 85 executes a program.

  The HDD 84 stores image data of an image read by the image reading unit 20.

<Operation screen>

  In the MFP 1, different operation screens are displayed on the display unit 31 according to the function mode of the MFP 1. The function mode includes a copy mode, a scan mode, a telephone mode, and a facsimile mode.

<Copy screen (normal)>

  In the copy mode, as shown in FIG. 3A, a mono / color setting button 111, an image quality setting button 112, a paper setting button 113, an increment button 114, a decrement button 115, and a start button 116 are displayed on the display unit 31 as operation buttons. Is displayed.

  The mono / color setting button 111 is a button for setting the copy mode by switching between monochrome copying and color copying. When the characters “COLOR” are displayed on the mono / color setting button 111, color copy is set as the copy mode. When the mono / color setting button 111 is pressed in this state, the display on the mono / color setting button 111 is switched to “MONO”, and monochrome copy is set as the copy mode. When the mono / color setting button 111 is pressed again in this state, the display on the mono / color setting button 111 returns to “COLOR”, and color copy is set as the copy mode.

  The image quality setting button 112 is, for example, a button for switching the image quality mode between a high image quality mode and a low image quality mode. When “high image quality” is displayed on the image quality setting button 112, a high image quality mode in which a high quality copy image is printed on paper is set. When the image quality setting button 112 is pressed in this state, the display on the image quality setting button 112 is switched to “low image quality”, and a low image quality mode in which a low image quality copy image is printed on paper at high speed is set. When the image quality setting button 112 is pressed again in this state, the display on the image quality setting button 112 returns to “high image quality” and the high image quality mode is set.

  The paper setting button 113 is a button for setting the size of paper used for copying. When “A4” is displayed on the paper setting button 113, the A4 size is set. When the paper setting button 113 is pressed in this state, the display on the paper setting button 113 is switched to “A3”, and the A3 size is set. When the paper setting button 113 is pressed in this state, the display on the paper setting button 113 is switched to “B5”, and the B5 size is set. Further, when the paper setting button 113 is pressed in this state, the display on the paper setting button 113 is switched to “B4”, and the B4 size is set. When the paper setting button 113 is pressed in this state, the display on the paper setting button 113 returns to “A4”, and the A4 size is set.

  The increment button 114 and the decrement button 115 are buttons for setting the number of copies. On the increment button 114 and the decrement button 115, symbols “Δ” and “▽” are displayed, respectively. On the left side of the increment button 114 and the decrement button 115, a copy number display area 117 is set. When the increment button 114 is pressed, the number displayed in the copy number display area 117 is increased by “1”, and the number of copies is set to the number increased by one. When the decrement button 115 is pressed, the number displayed in the copy number display area 117 is decremented by “1”, and the copy number is set to the number reduced by one.

  The start button 116 is a button for instructing the MFP 1 to start copying. On the start button 116, the characters “START” are displayed. When the start button 116 is pressed, the contents set by the operations of the mono / color setting button 111, the image quality setting button 112, the paper setting button 113, the increment button 114, and the decrement button 115 are confirmed, and copying with the set contents is performed. Operation starts.

<Copier for copying>

  The MFP 1 can be used with the copy cover 121 mounted on the touch panel 30.

  As shown in FIG. 3B, the copy cover 121 is made of, for example, transparent silicon rubber having a high light transmittance.

  The copy cover 121 is provided with a mono / color setting operation unit 122, an image quality setting operation unit 123, a paper setting operation unit 124, an increment operation unit 125, and a decrement operation unit 126. When the copy cover 121 is overlaid on the copy screen shown in FIG. 3A, the mono / color setting operation unit 122, the image quality setting operation unit 123, the paper setting operation unit 124, the increment operation unit 125, and the decrement operation unit 126 are The mono / color setting button 111, the image quality setting button 112, the paper setting button 113, the increment button 114, and the decrement button 115 are respectively arranged at positions facing each other.

  The thicknesses of the mono / color setting operation unit 122, the image quality setting operation unit 123, the paper setting operation unit 124, the increment operation unit 125, and the decrement operation unit 126 are compared with the thicknesses of the non-operation unit 127, which are other parts. Largely formed.

  For example, air is sealed at the center in the thickness direction of the mono / color setting operation unit 122, the image quality setting operation unit 123, the paper setting operation unit 124, the increment operation unit 125, and the decrement operation unit 126. The color setting operation unit 122, the image quality setting operation unit 123, the paper setting operation unit 124, the increment operation unit 125, and the reduction operation unit 126 are convex with respect to the surface of the non-operation unit 127.

  Thereby, when the mono / color setting operation unit 122, the image quality setting operation unit 123, the paper setting operation unit 124, the increment operation unit 125, and the decrement operation unit 126 are pressed by the operator, the operator feels depressed. Can be given.

  The copy cover 121 is provided with a start operation unit 128. When overlaid on the copy screen shown in FIG. 3A, the start operation unit 128 is disposed at a position facing the start button 116.

  The start operation unit 128 has a concave shape with respect to the surface of the non-operation unit 127 by being formed with a smaller thickness than the non-operation unit 127.

  Thereby, it is suppressed that an operator's hand etc. touch the start operation part 128 easily, and the misoperation of the start operation part 128 is suppressed.

<Copy screen (with cover)>

  When the copy cover 121 is mounted on the touch panel 30, the display screen of the touch panel 30 is switched from the screen shown in FIG. 3A to the screen shown in FIG. 3C.

  In the screen shown in FIG. 3A, letters, numbers, or symbols are displayed on the mono / color setting button 111, the image quality setting button 112, the paper setting button 113, the increment button 114, the decrement button 115, and the start button 116. In the screen shown in FIG. 3C, the mono / color setting display area 131, the image quality setting, and the mono / color setting button 111, the image quality setting button 112, the paper setting button 113, the increment button 114, and the decrement button 115 are adjacent to each other. A display area 132, a paper setting display area 133, an increase instruction display area 134, and a decrease instruction display area 135 are set.

  The mono / color setting operation unit 122, the image quality setting operation unit 123, the paper setting operation unit 124, the increment operation unit 125, and the reduction operation unit 126 of the copy cover 121 are thicker than the non-operation unit 127. The transparency is low. Therefore, when the copy cover 121 is mounted on the touch panel 30, the characters and numbers displayed on the mono / color setting button 111, the image quality setting button 112, the paper setting button 113, the increment button 114, and the decrement button 115 are displayed. Or it becomes difficult to see the symbol.

  When the copy cover 121 is mounted on the touch panel 30, the characters displayed on the mono / color setting button 111, the image quality setting button 112, the paper setting button 113, the increment button 114, and the decrement button 115 before being mounted. , Numbers or symbols disappear. The characters, numbers, or symbols displayed on the mono / color setting button 111, the image quality setting button 112, the paper setting button 113, the increment button 114, and the decrement button 115 are the mono / color setting display area 131, the image quality, respectively. They are displayed in the setting display area 132, the paper setting display area 133, the increment instruction display area 134, and the decrement instruction display area 135.

  Since the start operation unit 128 of the copy cover 121 is smaller in thickness than the non-operation unit 127, the transparency is high. For this reason, even when the copy cover 121 is mounted on the touch panel 30, it is difficult for the characters displayed on the start button 116, that is, the characters “START” to be visually recognized.

  Even when the copy cover 121 is attached on the touch panel 30, the characters “START” displayed on the start button 116 before the attachment are continuously displayed on the start button 116.

  That is, the area where the mono / color setting button 111, the image quality setting button 112, the paper setting button 113, the increment button 114, and the decrement button 115 are displayed is the character displayed in the area when the copy cover 121 is attached. These are areas where numbers or symbols are difficult to visually recognize (hereinafter, such areas are referred to as “specific areas”). For this reason, when the copy cover 121 is mounted on the touch panel 30, the characters, numbers, or symbols displayed prior to mounting disappear from the specific area, and the characters, numbers, or symbols are adjacent areas adjacent to the specific area. They are displayed in a mono / color setting display area 131, an image quality setting display area 132, a paper setting display area 133, an increase instruction display area 134, and a decrease instruction display area 135.

  On the other hand, the area where the start button 116 is displayed is an area in which it is difficult to visually recognize characters, numbers or symbols displayed in the area when the copy cover 121 is mounted (hereinafter referred to as “command input area”). "). Therefore, even if the copy cover 121 is mounted on the touch panel 30, the characters, numbers, or symbols displayed in the command input area are displayed as they are in the command input area.

<Scan screen (normal)>

  In the scan mode, as shown in FIG. 4A, a mono / color setting button 211, an image quality setting button 212, a storage destination setting button 213, and a start button 214 are displayed on the display unit 31 as operation buttons.

  The mono / color setting button 211 is a button for setting the scan mode by switching between monochrome scan and color scan. In a state where the characters “COLOR” are displayed on the mono / color setting button 211, color scan is set as the scan mode. When the mono / color setting button 211 is pressed in this state, the display on the mono / color setting button 211 is switched to “MONO”, and monochrome scan is set as the scan mode. In this state, when the mono / color setting button 211 is pressed again, the display on the mono / color setting button 211 returns to “COLOR”, and the color scan is set as the scan mode.

  The image quality setting button 212 is, for example, a button for switching the image quality mode between a high image quality mode and a low image quality mode. When “high image quality” is displayed on the image quality setting button 212, a high image quality mode is set in which image data of high image quality (high resolution) is acquired by scanning the document. In this state, when the image quality setting button 212 is pressed, the display on the image quality setting button 212 is switched to “low image quality”, and a low image quality mode in which image data of low image quality (low resolution) is acquired by scanning a document is set. Is done. In this state, when the image quality setting button 212 is pressed again, the display on the image quality setting button 212 returns to “high image quality” and the high image quality mode is set.

  The save destination setting button 213 is a button for setting a save destination of image data scanned from a document. When “USB” is displayed on the storage destination setting button 213, the USB memory attached to the USB interface 60 is set as the storage destination of the scanned image data. When the save destination setting button 213 is pressed in this state, the display on the save destination setting button 213 is switched to “HDD”, and the HDD 84 is set as the save destination of the scanned image data. When the save destination setting button 213 is pressed in this state, the display on the save destination setting button 213 returns to “USB”, and the USB memory is set.

  The start button 214 is a button for instructing the MFP 1 to start scanning. When the start button 214 is pressed, the contents set by operating the mono / color setting button 211, the image quality setting button 212, and the save destination setting button 213 are confirmed, and the scanning operation with the set contents is started.

<Scanning cover>

  The MFP 1 can be used with the scan cover 221 mounted on the touch panel 30.

  As shown in FIG. 4B, the scanning cover 221 is made of, for example, transparent silicon rubber having a high light transmittance.

  The scan cover 221 includes a mono / color setting operation unit 222, an image quality setting operation unit 223, and a storage destination setting operation unit 224. When the scan cover 221 is overlaid on the scan screen shown in FIG. 4A, the mono / color setting operation unit 222, the image quality setting operation unit 223, and the save destination setting operation unit 224 are respectively connected to the mono / color setting button 211 and the image quality. The setting button 212 and the storage destination setting button 213 are arranged at positions facing each other.

  The thicknesses of the mono / color setting operation unit 222, the image quality setting operation unit 223, and the storage destination setting operation unit 224 are formed larger than the thickness of the non-operation unit 225, which is the other part.

  For example, air is sealed in the center in the thickness direction of the mono / color setting operation unit 222, the image quality setting operation unit 223, and the storage destination setting operation unit 224, and the mono / color setting operation unit 222, the image quality setting operation unit 223 and the sheet setting operation unit 224 are convex with respect to the surface of the non-operation unit 225.

  Accordingly, when the mono / color setting operation unit 222, the image quality setting operation unit 223, and the storage destination setting operation unit 224 are pressed by the operator, it is possible to give the operator a feeling of pressing.

  The scan cover 221 is provided with a start operation unit 226. When the scan screen shown in FIG. 4A is overlaid, the start operation unit 226 is disposed at a position facing the start button 214.

  The start operation unit 226 has a concave shape with respect to the surface of the non-operation unit 225 by being formed with a smaller thickness than the non-operation unit 225.

  Thereby, it is suppressed that an operator's hand etc. touch the start operation part 226 easily, and the misoperation of the start operation part 226 is suppressed.

<Scan screen (with cover)>

  When the scan cover 221 is mounted on the touch panel 30, the display screen of the touch panel 30 is switched from the screen shown in FIG. 4A to the screen shown in FIG. 4C.

  In the screen shown in FIG. 4A, letters, numbers, or symbols are displayed on the mono / color setting button 211, the image quality setting button 212, the storage destination setting button 213, and the start button 214. In the screen shown in FIG. 4C, the mono / color setting display area 231, the image quality setting display area 232, and the storage destination setting display are respectively positioned adjacent to the mono / color setting button 211, the image quality setting button 212, and the storage destination setting button 213. An area 233 is set.

  Since the mono / color setting operation unit 222, the image quality setting operation unit 223, and the storage destination setting operation unit 224 of the scan cover 221 are thicker than the non-operation unit 127, the transparency is low. For this reason, when the scan cover 221 is mounted on the touch panel 30, it is difficult to visually recognize characters, numbers, or symbols displayed on the mono / color setting button 211, the image quality setting button 212, and the storage destination setting button 213.

  When the scan cover 221 is mounted on the touch panel 30, the characters, numbers, or symbols displayed on the mono / color setting button 211, the image quality setting button 212, and the storage destination setting button 213 before the scan cover 221 are deleted. The characters, numbers, or symbols displayed on the mono / color setting button 211, the image quality setting button 212, and the save destination setting button 213 are the mono / color setting display area 231, the image quality setting display area 232, and the save destination setting, respectively. It is displayed in the display area 233.

  Since the start operation unit 226 of the scan cover 221 has a smaller thickness than the non-operation unit 225, the transparency is high. Therefore, even if the scan cover 221 is attached on the touch panel 30, it is difficult for the characters displayed on the start button 214, that is, the characters “START” to be visually recognized.

  Even when the scan cover 221 is mounted on the touch panel 30, the characters “START” displayed on the start button 214 before the mounting are continuously displayed on the start button 214.

  That is, in the area where the mono / color setting button 211, the image quality setting button 212, and the storage destination setting button 213 are displayed, it is difficult to visually recognize the characters, numbers, or symbols displayed in the area when the scan cover 221 is attached. This is a specific area. Therefore, when the scan cover 221 is mounted on the touch panel 30, the characters, numbers, or symbols displayed before the mounting from the specific area disappear, and the characters, numbers, or symbols are adjacent areas adjacent to the specific area. They are displayed in the mono / color setting display area 231, the image quality setting display area 232 and the storage destination setting display area 233.

  On the other hand, the area where the start button 214 is displayed is a command input area where it is difficult to visually recognize the characters, numbers or symbols displayed in the area when the scan cover 221 is attached. Therefore, even if the scan cover 221 is mounted on the touch panel 30, the characters, numbers, or symbols displayed in the command input area are displayed as they are in the command input area.

<Phone screen (normal)>

  In the telephone mode, as shown in FIG. 5A, a numeric keypad 311 and a call button 312 are displayed on the display unit 31 as operation buttons.

  The numeric keypad 311 is a button for inputting numbers in order to designate a telephone number. A telephone number display area 313 is set on the left side of the numeric keypad 311. When the numeric keypad 311 is pressed, numbers and the like corresponding to the pressed numeric keypad 311 are displayed in the telephone number display area 313 in order from the left end.

  Call button 312 is a button for instructing MFP 1 to start calling. When the call button 312 is pressed, the telephone call to the telephone number displayed in the telephone number display area 313 is started.

<Phone cover>

  The MFP 1 can be used with the telephone cover 321 mounted on the touch panel 30.

  As shown in FIG. 5B, the telephone cover 321 is made of, for example, transparent silicon rubber having a high light transmittance.

  The telephone cover 321 is provided with a numeric keypad operation unit 322. When the telephone cover 321 is superimposed on the telephone screen shown in FIG. 5A, the numeric keypad operation unit 322 is arranged at a position facing the numeric keypad 311.

  The thickness of the numeric keypad operation part 322 is formed larger than the thickness of the non-operation part 323 which is a part other than these.

  For example, air is sealed in the central portion in the thickness direction of the numeric keypad operation unit 322, and the numeric keypad operation unit 322 has a convex shape with respect to the surface of the non-operation unit 323.

  Thereby, when the ten key operation unit 322 is pressed by the operator, it is possible to give the operator a feeling of pressing.

  The telephone cover 321 is provided with a call operation unit 324. When the telephone screen shown in FIG. 5A is overlaid, the transmission operation unit 324 is disposed at a position facing the transmission button 312.

  The transmission operation unit 324 has a concave shape with respect to the surface of the non-operation unit 323 by being formed with a smaller thickness than the non-operation unit 323.

  Thereby, it is suppressed that an operator's hand etc. touch the transmission operation part 324 easily, and the misoperation of the transmission operation part 324 is suppressed.

<Phone screen (when the cover is attached)>

  When the telephone cover 321 is mounted on the touch panel 30, the display screen of the touch panel 30 is switched from the screen shown in FIG. 5A to the screen shown in FIG. 5C.

  In the screen shown in FIG. 5A, letters, numbers, or symbols are displayed on the numeric keypad 311 and the call button 312. In the screen shown in FIG. 5C, a numeric keypad display area 331 is set at a position adjacent to each numeric keypad button 311.

  Since the numeric keypad operation unit 322 of the telephone cover 321 is thicker than the non-operation unit 323, the transparency is low. Therefore, when the telephone cover 321 is attached on the touch panel 30, it is difficult to visually recognize characters, numbers, or symbols displayed on the numeric keypad button 311.

  When the telephone cover 321 is mounted on the touch panel 30, the characters, numbers or symbols displayed on the numeric keypad 311 disappear before the mounting. The characters, numbers, or symbols displayed on the numeric keypad button 311 are displayed in the numeric keypad display area 331, respectively.

  Since the transmission operation unit 324 of the telephone cover 321 has a smaller thickness than the non-operation unit 323, the transmission operation unit 324 has high transparency. Therefore, even if the telephone cover 321 is attached on the touch panel 30, it is difficult for the characters displayed on the call button 312, that is, the characters “CALL” to be visually recognized.

  Even when the telephone cover 321 is mounted on the touch panel 30, the characters “CALL” displayed on the transmission button 312 before the mounting are continuously displayed on the transmission button 312.

  That is, the area where the numeric keypad 311 is displayed is a specific area where it is difficult to visually recognize characters, numbers or symbols displayed in the area when the telephone cover 321 is attached. Therefore, when the telephone cover 321 is mounted on the touch panel 30, the characters, numbers, or symbols displayed before the mounting are removed from the specific area, and the characters, numbers, or symbols are adjacent areas adjacent to the specific area. It is displayed in the numeric keypad display area 331.

  On the other hand, the area where the call button 312 is displayed is a command input area where it is difficult to visually recognize characters, numbers or symbols displayed in the area when the telephone cover 321 is attached. Therefore, even if the telephone cover 321 is mounted on the touch panel 30, the characters, numbers, or symbols displayed in the command input area are displayed as they are in the command input area.

<Fax screen (normal)>

  In the fax mode, as shown in FIG. 6A, a numeric keypad button 411, a mono / color setting button 412 and a transmission button 413 are displayed on the display unit 31 as operation buttons.

  The numeric keypad button 411 is a button for inputting numbers in order to designate a fax number. A fax number display area 414 is set on the left side of the numeric keypad button 411. When the numeric key button 411 is pressed, numbers and the like corresponding to the pressed numeric key button 411 are displayed in the fax number display area 413 in order from the left end.

  The mono / color setting button 412 is a button for setting the fax mode by switching between monochrome fax and color fax. In a state where the characters “COLOR” are displayed on the mono / color setting button 412, color fax is set as the fax mode. In this state, when the mono / color setting button 411 is pressed, the display on the mono / color setting button 411 switches to “MONO”, and monochrome fax is set as the fax mode. When the mono / color setting button 411 is pressed again in this state, the display on the mono / color setting button 411 returns to “COLOR”, and color copy is set as the copy mode.

  A send button 413 is a button for instructing the MFP 1 to start fax transmission. When the send button 413 is pressed, fax transmission to the fax number displayed in the fax number display area 414 is started.

<Fax cover>

  The MFP 1 can be used with the fax cover 421 mounted on the touch panel 30.

  As shown in FIG. 6B, the fax cover 421 is made of, for example, transparent silicon rubber having a high light transmittance.

  The fax cover 421 is provided with a numeric keypad operation unit 422 and a mono / color setting operation unit 423. When the fax cover 421 is overlaid on the fax screen shown in FIG. 6A, the numeric keypad operation unit 422 and the mono / color setting operation unit 423 are disposed at positions facing the numeric keypad button 411 and the mono / color setting button 412 respectively. Has been.

  The thicknesses of the numeric keypad operation unit 422 and the mono / color setting operation unit 423 are formed to be larger than the thickness of the non-operation unit 424 which is a part other than these.

  For example, air is sealed in the center in the thickness direction of the numeric keypad operation unit 422 and the mono / color setting operation unit 423, and the numeric keypad operation unit 422 and the mono / color setting operation unit 423 are arranged on the surface of the non-operation unit 424. Convex shape.

  Thereby, when the ten key operation unit 422 and the mono / color setting operation unit 423 are pressed by the operator, it is possible to give the operator a feeling of pressing.

  The fax cover 421 is provided with a transmission operation unit 425. When the fax screen shown in FIG. 6A is overlaid, the transmission operation unit 425 is disposed at a position facing the transmission button 412.

  The transmission operation unit 424 has a concave shape with respect to the surface of the non-operation unit 424 by being formed with a smaller thickness than the non-operation unit 424.

  Thereby, it is suppressed that an operator's hand etc. touch the transmission operation part 424 easily, and the misoperation of the transmission operation part 424 is suppressed.

<Fax screen (with cover)>

  When the fax cover 421 is mounted on the touch panel 30, the display screen of the touch panel 30 is switched from the screen shown in FIG. 6A to the screen shown in FIG. 6C.

  In the screen shown in FIG. 6A, letters, numbers, or symbols are displayed on the numeric keypad button 411 and the mono / color setting button 412.

  In the screen shown in FIG. 6C, a numeric keypad display area 431 and a mono / color setting display area 432 are set at positions adjacent to the numeric keypad button 411 and the mono / color setting button 412 respectively.

  Since the numeric keypad operation unit 422 and the mono / color setting operation unit 423 of the fax cover 421 are thicker than the non-operation unit 424, the transparency is low. Therefore, when the fax cover 421 is mounted on the touch panel 30, it is difficult to visually recognize characters, numbers, or symbols displayed on the numeric keypad button 411 and the mono / color setting button 412.

  When the fax cover 421 is mounted on the touch panel 30, the characters, numbers, or symbols displayed on the numeric keypad button 411 and the mono / color setting button 412 before the fax cover 421 are mounted disappear. The characters, numbers, or symbols displayed on the numeric keypad button 411 and the mono / color setting button 412 are displayed in the numeric keypad display area 431 and the mono / color setting display area 432, respectively.

  Since the transmission operation unit 425 of the fax cover 421 is smaller in thickness than the non-operation unit 424, the transparency is high. Therefore, even when the fax cover 421 is attached on the touch panel 30, it is difficult for the characters displayed on the transmission button 413, that is, the characters “CALL” to be visually recognized.

  Even when the fax cover 421 is mounted on the touch panel 30, the characters “CALL” displayed on the transmission button 413 before the fax cover 421 are continuously displayed on the transmission button 413.

  That is, the area where the numeric keypad button 411 and the mono / color setting button 412 are displayed is a specific area where it is difficult to visually recognize characters, numbers, or symbols displayed in the area when the fax cover 421 is attached. For this reason, when the fax cover 421 is mounted on the touch panel 30, the characters, numbers, or symbols displayed before the mounting disappear from the specific area, and the characters, numbers, or symbols are adjacent areas adjacent to the specific area. They are displayed in the numeric keypad display area 431 and the mono / color setting display area 432.

  On the other hand, the area where the send button 413 is displayed is a command input area where it is difficult to visually recognize characters, numbers or symbols displayed in the area when the fax cover 421 is attached. Therefore, even if the fax cover 421 is mounted on the touch panel 30, the characters, numbers, or symbols displayed in the command input area are displayed as they are in the command input area.

<Identification pattern>

  For example, as shown in FIGS. 3B, 4B, 5B, and 6B, the copy cover 121, the scan cover 221, the telephone cover 321 and the fax cover 521 include identification patterns 501, 502, 503, and 504, respectively. Is provided. In the identification patterns 501, 502, 503, and 504, for example, protrusions are formed on the back surface of the copy cover 121, the scan cover 221, the telephone cover 321 and the fax cover 521 (the surface facing the touch panel 30 when mounted). Is. The copy cover 121, the scan cover 221, the telephone cover 321, and the fax cover 421 have identification patterns 501, 502, 503, and 504 having different shapes, respectively. For example, the identification pattern 501 of the copy cover 121 is formed by one protrusion as shown in FIG. 3B. The identification pattern 502 of the scan cover 221 is formed of two protrusions as shown in FIG. 4B. The identification pattern 503 of the telephone cover 321 is formed by three protrusions as shown in FIG. 5B. The identification pattern 504 of the fax cover 421 is formed by four protrusions as shown in FIG. 6B.

<Cover installation setting process>

  In order to switch the display screen of the touch panel 30 between when the copy cover 121, the scan cover 221, the telephone cover 321, and the fax cover 421 are attached and not attached, the CPU 85 of the ASIC 81 turns on the power of the MFP 1. During this time, the cover mounting setting process shown in FIG. 7 is repeatedly executed.

  In the cover attachment setting process, the CPU 85 determines whether any one of the copy cover 121, the scan cover 221, the telephone cover 321 or the fax cover 521 is attached to the touch panel 30 (S1). When the copy cover 121, the scan cover 221, the telephone cover 321, or the fax cover 521 is attached to the touch panel 30, the touch panel 30 is pressed by the identification patterns 501, 502, 503, and 504, respectively. The CPU 85 determines whether the identification patterns 501, 502, 503, and 504 are pressed, and if not pressed, any of the copy cover 121, the scan cover 221, the telephone cover 321, and the fax cover 521 is a touch panel. 30 is determined not to be mounted (S1: NO).

  In this case, the CPU 85 determines whether or not the function mode is selected by the user (S2). If the function mode is not selected (S2: NO), the process returns to the determination of S1, and the CPU 85 determines whether any of the scan cover 221, the telephone cover 321 or the fax cover 521 is attached. To do. If it is determined by the user that any one of the copy mode, scan mode, telephone mode, and facsimile mode has been selected (S2: YES), the CPU 85 causes the operation button of the function mode determined to be selected to be displayed on the touch panel 30. Display in specific area and command input area. Then, the CPU 85 displays letters, numbers, or symbols corresponding to the operation buttons in the specific area and the command input area of the touch panel 30 (S3), and ends the cover mounting setting process. Note that the function mode selected by the user may be selected by the user operating the touch panel 30, or may be selected by another switch or the like.

  On the other hand, when the CPU 85 determines that any one of the copy cover 121, the copy cover 121, the scan cover 221, the telephone cover 321 or the fax cover 521 is attached to the touch panel 30 (S1: YES). ), The identification patterns 501, 502, 503, and 504 are detected by the position detection sensor 32 of the touch panel 30, and the covers attached to the touch panel 30 are the copy cover 121, the copy cover 121, the scan cover 221, and the telephone. Whether the cover 321 for fax or the cover 521 for fax is identified (S4).

  Then, the CPU 85 displays characters, numbers, or symbols corresponding to the operation buttons in the adjacent area and the command input area according to the type of cover attached to the touch panel 30 (S5).

  Further, the CPU 85 increases the contact detection sensitivity of the specific area, decreases the contact detection sensitivity of the command input area (S6), and ends the cover mounting setting process. The change of the contact detection sensitivity can be achieved, for example, by changing the threshold value of the resistance value that determines that the touch panel is pressed. That is, the contact detection sensitivity can be increased by lowering the threshold value of the resistance value for determining that the touch panel is pressed. On the other hand, the contact detection sensitivity can be lowered by increasing the threshold value of the resistance value.

<Effect>

  The touch panel 30 includes a display unit 31 and a position detection sensor 32. When none of the copy cover 121, the scan cover 221, the telephone cover 321, or the fax cover 521 is attached to the touch panel 30, letters, numbers, or symbols are displayed in the specific area. When any one of the cover 121 for copying, the cover 221 for scanning, the cover 321 for telephones, or the cover 521 for faxes is attached to the touch panel 30 and the attachment is detected, the characters, numbers, or characters displayed in the specific area are detected. The symbol is displayed in an adjacent area adjacent to the specific area.

  By attaching any one of the cover 121 for copying, the cover 221 for scanning, the cover 321 for telephones, or the cover 521 for faxes to the touch panel 30, for example, the distinction between a specific area and other areas is clarified. And operability can be improved. Moreover, even if it becomes difficult to visually recognize the specific area of the touch panel 30 by attaching any one of the cover for copying 121, the cover for scanning 221, the cover for telephone 321, or the cover for fax 521 to the touch panel 30, Since the characters, numbers, or symbols displayed in the specific area are moved to the adjacent areas and displayed, the characters, numbers, or symbols can be viewed well.

  Therefore, it is possible to improve both the operability of the touch panel 30 and the display visibility by the copy cover 121, the scan cover 221, the telephone cover 321 and the fax cover 521.

  Since the thickness of the portion facing the specific area of the copy cover 121, the scan cover 221, the telephone cover 321 and the fax cover 521 is larger than the thickness of the non-operation unit 127, the specific area and the other areas The distinction from the area becomes clearer. Further, when the user presses a specific area, a reaction force from the copy cover 121, the scan cover 221, the telephone cover 321 or the fax cover 521 can be felt. As a result, operability can be further improved. However, in this case, the contact detection sensitivity in the specific region may be reduced.

  When any one of the copy cover 121, the scan cover 221, the telephone cover 321, and the fax cover 521 is attached to the touch panel 30, the copy cover 121, the scan cover 221, the telephone cover 321, and the fax cover Compared with the case where none of 521 is attached to the touch panel 30, the detection sensitivity in the specific region is increased. Thereby, while further improving the operability of the touch panel 30, it is possible to satisfactorily detect contact of a finger or the like to the specific area.

  Since the portion facing the command input area in the copy cover 121, the scan cover 221, the telephone cover 321 or the fax cover 521 is formed as a recess having a small thickness, the command input area is inadvertently pressed. It is suppressed.

  Further, even if the copy cover 121, the scan cover 221, the telephone cover 321 or the fax cover 521 is attached to the touch panel 30, the decrease in the visibility (light transmittance) of the command input area is small, so that the command input Regardless of whether or not the installation of the copy cover 121, the scan cover 221, the telephone cover 321 or the fax cover 521 is detected in the area, the start buttons 116 and 214, the send button 312 and the send button 413 are displayed. Characters, numbers, or symbols corresponding to each operation button are displayed. Even in this case, the characters, numbers, or symbols displayed in the command input area can be viewed well.

  Furthermore, the contact detection sensitivity in the command input area is lowered than the contact detection sensitivity in the specific area. Thereby, when a finger etc. inadvertently contacts the command input area, it is possible to suppress the contact from being detected. As a result, an erroneous input based on an erroneous operation in the command input area can be further suppressed.

  Further, identification patterns 501, 502, 503, and 504 are formed on the copy cover 121, the scan cover 221, the telephone cover 321 and the fax cover 521, respectively. Based on the identification patterns 501, 502, 503, and 504, the cover attached to the touch panel 30 is any one of the copy cover 121, the copy cover 121, the scan cover 221, the telephone cover 321 or the fax cover 521. Is identified.

  As a result, compared with a configuration in which an IC tag for identification is provided on the copy cover 121, the scan cover 221, the telephone cover 321, or the fax cover 521, the copy cover 121, the scan cover 221, The configuration of the telephone cover 321 or the fax cover 521 can be simplified.

<Modification>

  As mentioned above, although embodiment of this invention was described, this invention can also be implemented with another form.

  For example, in the above-described embodiment, the copy cover 121, the scan cover 221, the telephone cover 321, and the fax cover 521 cover the entire display unit 31. You may cover only a part including. Further, the copy cover 121, the scan cover 221, the telephone cover 321, and the fax cover 521 are arranged so as not to cover the adjacent area adjacent to the specific area when mounted on the touch panel 30, for example. A configuration in which an opening is formed in a portion that overlaps with may be used.

  In the above-described embodiment, air is sealed in specific portions of the copy cover 121, the scan cover 221, the telephone cover 321 and the fax cover 521 to obtain a pressing feeling. It may be made softer than 127, 225, 323, 424 to obtain a feeling of indentation.

  Further, in the above-described embodiment, the contact detection sensitivity threshold is changed in order to increase the contact detection sensitivity in the specific region and to reduce the contact detection sensitivity in the command input region, but the contact detection sensitivity threshold is not changed, By changing the amplification degree of a signal (for example, resistance value) output from the touch detection unit of the touch panel 30 when a touch operation is performed, the touch detection sensitivity in the specific area is increased, and the touch detection sensitivity in the command input area. May be taken down.

  The touch panel 30 may be a touch panel of a system other than the resistive film system. As the touch panel 30, for example, a capacitive touch panel may be employed. In that case, electrodes may be embedded in the positions of the identification patterns 501, 502, 503, and 504 in the copy cover 121, the scan cover 221, the telephone cover 321, and the fax cover 521, respectively.

  The copy cover 121, the scan cover 221, the telephone cover 321 and the fax cover 521 are made of, for example, transparent silicon rubber, but may be made of a translucent material. In that case, when the copy cover 121, the scan cover 221, the telephone cover 321, and the fax cover 521 are mounted on the touch panel 30, the illuminance of the touch panel 30 is increased and the visibility of the display screen of the touch panel 30 is increased. Deterioration may be suppressed.

  Regarding the detection of the type of cover, instead of the identification patterns 501, 502, 503, and 504, the RF (Radio frequency) tag attached to the cover is detected by the NFC 40, and the type of cover is determined based on the information acquired from the RF tag. It may be detected. Further, when the shape of the entire cover or the shape of the predetermined portion varies depending on the type of cover, for example, a contact sensor or switch that is turned on / off according to the shape is provided in the MFP 1, and the output of the contact sensor or switch The type of cover may be detected from the signal.

  In addition, various design changes can be made to the above-described configuration within the scope of the matters described in the claims.

1 MFP
30 Touch Panel 31 Display Unit 84 CPU
121 Cover for Copying 221 Cover for Scanning 321 Cover for Telephone 421 Cover for Fax

Claims (10)

A touch panel having a display unit and a contact detection unit for detecting contact of a contact body with a specific region which is at least a partial region of the display unit;
A cover detection unit for detecting that a cover covering at least the specific area of the touch panel is attached to the touch panel;
A display control unit for controlling display in the display unit,
The display control unit displays characters, numbers, or symbols in the specific area when the cover detection is not detected by the cover detection unit, and when the cover detection is detected by the cover detection unit. A touch panel device that displays the letters, numbers, or symbols in an adjacent area adjacent to the specific area. The touch panel device according to claim 1,
A sensitivity control unit for increasing the detection sensitivity of the contact detection unit when the cover detection unit detects the cover installation compared to when the cover detection unit does not detect the cover installation; A touch panel device. The touch panel device according to claim 1,
The contact detection unit further detects contact of a contact body with a third region which is a region of the display unit other than both the specific region and the adjacent region,
The said display control part is a touch panel apparatus which displays a character, a number, or a symbol on the said 3rd area | region irrespective of whether mounting | wearing of the said cover is detected by the said cover detection part. The touch panel device according to claim 3,
Sensitivity control for increasing the detection sensitivity of the contact detection unit in the specific area when the cover detection unit detects the cover installation compared to when the cover detection unit does not detect the cover installation. A touch panel device further comprising a unit. The touch panel device according to claim 4,
The said sensitivity control part is a touch panel apparatus which makes the detection sensitivity of the said contact detection part in the said 3rd area | region lower than the detection sensitivity of the said contact detection part in the said specific area | region. In the touch panel device according to any one of claims 1 to 5,
The contact detection unit detects that a predetermined identification pattern formed on the cover is in contact with the display unit,
The cover detection unit is a touch panel device that detects attachment of the cover and a type of the cover when the contact detection unit detects contact of the identification pattern with the display unit. A touch panel having a display unit and a contact detection unit for detecting contact of a contact body with a specific region which is at least a partial region of the display unit;
A display control method executed by a touch panel device including a cover detection unit for detecting that a cover that covers at least the specific area of the touch panel is attached to the touch panel,
When the cover is not detected by the cover detection unit, characters, numbers or symbols are displayed in the specific area,
A display control method for displaying the character, number, or symbol in an adjacent area adjacent to the specific area when the cover detection unit detects that the cover is attached. A touch panel having a display unit and a contact detection unit for detecting contact of a contact body with a specific region which is at least a partial region of the display unit;
A display control program installed in a computer of a touch panel device including a cover detection unit for detecting that a cover covering at least the specific area of the touch panel is attached to the touch panel;
The computer,
When the cover is not detected by the cover detector, characters, numbers or symbols are displayed in the specific area. When the cover is detected by the cover detector, the cover is adjacent to the specific area. A display control program that functions as a display control unit that displays the character, number, or symbol in an adjacent area. A touch panel having a display unit and a contact detection unit for detecting contact of a contact body with a specific region which is at least a partial region of the display unit, and a display control unit for controlling display on the display unit A cover for a touch panel device provided,
Attached to the display unit, covers at least the specific area of the touch panel,
A specific part facing the specific area when mounted on the display unit;
When attached to the display unit, the character, number, or symbol that is adjacent to the specific part and displayed in the specific region by the display control unit when the cover is not attached to the display unit is displayed. An adjacent portion opposite to the adjacent region,
The cover, wherein the light transmittance of the specific portion is lower than the light transmittance of the adjacent portion. The cover according to claim 9, wherein
The cover has a thickness that is greater than a thickness of the adjacent portion.

Images