JP6361579B2 - Display device and image forming apparatus - Google Patents

Description

  The present invention relates to a display device and an image forming apparatus.

  The digital video reproduction apparatus disclosed in Patent Document 1 includes a thumbnail display unit that displays a list of thumbnails (files) and a selection button. In the digital video reproduction device, when the selection button is pressed for a longer time than a predetermined time, a plurality of thumbnails can be selected continuously.

JP 2012-230570 A

  However, in the digital video reproduction apparatus described in Patent Document 1, the user presses the selection button for a predetermined time and then presses the cursor button to select a plurality of thumbnails. Therefore, since the user presses the cursor button every time a thumbnail is selected, the operation of selecting thumbnails continuously is complicated.

  SUMMARY An advantage of some aspects of the invention is that it provides a display device and an image forming apparatus capable of selecting a plurality of files with a simple operation.

  According to the first aspect of the present invention, the display device includes a display unit, a control unit, and a detection unit. The display unit has a display surface. The control unit assigns a first selection area to the display surface. The detection unit detects the position of the contact point on the display surface. The first selection area includes a plurality of second selection areas corresponding to a plurality of files. After the detection unit detects a contact point stopped for a predetermined time or more in the first selection region, the control unit corresponds to the second selection region through which the contact point has passed among the plurality of second selection regions. Select the file to be.

  According to a second aspect of the present invention, an image forming apparatus includes the display device according to the first aspect of the present invention and an image forming unit. The image forming unit forms an image on a sheet based on the selected file.

  According to the present invention, a plurality of files can be selected with a simple operation.

It is a figure which shows the display apparatus which concerns on Embodiment 1 of this invention. It is a figure which shows the display part with which the display apparatus which concerns on Embodiment 1 of this invention is provided. It is a figure which shows the continuous selection control which the display apparatus which concerns on Embodiment 1 of this invention performs. It is a flowchart which shows the continuous selection control which the display apparatus which concerns on Embodiment 1 of this invention performs. FIG. 5 is a schematic cross-sectional view for explaining an image forming apparatus according to a second embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof is not repeated.

(Embodiment 1)
With reference to FIG.1 and FIG.2, the display apparatus 1 which concerns on Embodiment 1 of this invention is demonstrated. FIG. 1 shows a display device 1. The display device 1 includes a control unit 10, a display unit 20, and a touch panel 30 as a detection unit.

  FIG. 2 shows the display unit 20 included in the display device 1. The display unit 20 displays an image. The display unit 20 is, for example, a liquid crystal display. The display unit 20 has a display surface 20A. The X axis is parallel to the short side of the display surface 20A of the display unit 20, and the Y axis is parallel to the long side of the display surface 20A of the display unit 20.

  The control unit 10 allocates two first selection areas AS1 and two identifier display areas AN to the display surface 20A of the display unit 20. Each of the two first selection areas AS1 and the two identifier display areas AN is assigned so as to extend from one end to the other end of the long side of the display surface 20A. Further, the first selection area AS1 and the identifier display area AN are alternately assigned along the short side of the display surface 20A. That is, the identifier display area AN is assigned to the display surface 20A so as to be adjacent to the first selection area AS1. In FIG. 2, for convenience of explanation, each of the two first selection areas AS1 and the two identifier display areas AN is indicated by broken lines, but actually there are no broken lines.

  The first selection area AS1 includes a plurality of second selection areas AS2 corresponding to each of the plurality of files. The plurality of files are acquired from, for example, a storage unit (not shown) included in the display device 1. The plurality of files are, for example, a data file, an image file, or an audio file. Note that the plurality of files may be acquired from an external device. For example, a check box is displayed in an area corresponding to the second selection area AS2 in the display unit 20. That is, each of the plurality of check boxes displayed in the second selection area AS2 corresponds to a plurality of files.

  In the present embodiment, eight second selection areas AS2 are arranged in the first selection area AS1 in the order from the upper left of the display surface 20A to the lower left of the display surface 20A. Next to the second selection area AS2 arranged at the lower left of the display surface 20A, the second selection area AS2 is arranged at the upper right of the display surface 20A. Then, eight second selection areas AS2 are arranged in the order from the upper right of the display surface 20A to the lower right of the display surface 20A. The user can set the order of a plurality of files corresponding to each of the plurality of second selection areas AS2. For example, the user associates each of the plurality of files with the plurality of second selection areas AS2 in the order of the file names of the plurality of files.

  The control unit 10 corresponds to each of the plurality of second selection regions AS2 so that the region corresponding to the identifier display region AN in the display unit 20 is adjacent to each of the plurality of second selection regions AS2, for example. The identifiers of multiple files to be displayed are displayed. In the present embodiment, the identifiers of the plurality of files are file names. Specifically, the second selection area AS2 assigned to the upper left of the display surface 20A shown in FIG. The file name of the file 17 is “file 17”. Therefore, the file name of the file 17 is displayed in the area of the display unit 20 corresponding to the area adjacent to the second selection area AS2 corresponding to the file 17 in the identifier display area AN. Note that the identifiers of the plurality of files may be thumbnails or icons.

  The touch panel 30 detects the position of the contact point on the display surface 20 </ b> A of the display unit 20. Further, the touch panel 30 measures the contact time of the contact point with the display surface 20A of the display unit 20. In this specification, for example, the user operates the touch panel 30 with one finger.

  The control unit 10 has a normal selection mode and a continuous selection mode. In the normal selection mode, the user selects a plurality of files one by one. On the other hand, in the continuous selection mode, the user selects a plurality of files continuously. The display unit 20 includes a mode display frame 21 in which the selected mode is displayed. The user can confirm the currently selected mode by viewing the mode display frame 21. Hereinafter, details of the normal selection mode and the continuous selection mode will be described.

  First, the details of the normal selection mode will be described with reference to FIG. In the normal selection mode, when the touch panel 30 detects a contact point at any position of the plurality of second selection areas AS2, the control unit 10 creates a file corresponding to the second selection area AS2 at the position where the contact point is detected. select. Specifically, as illustrated in FIG. 2, when the touch panel 30 detects a contact point at a position P <b> 10 in the second selection area AS <b> 2 corresponding to the file 29, the control unit 10 selects the file 29. When the user selects a plurality of files in the normal selection mode, the user sequentially touches the plurality of second selection areas AS2 corresponding to each of the plurality of files to be selected on the display surface 20A.

  The control unit 10 causes the display unit 20 to display the check box corresponding to the selected file so that it is conspicuous. For example, as illustrated in FIG. 2, the control unit 10 causes the display unit 20 to display a check mark in a check box corresponding to the selected file. The user can confirm which file is selected from among the plurality of files corresponding to each of the plurality of second selection areas AS2 by visually checking the check mark. In addition, in order to make a user confirm which file is selected, the control part 10 may change the color of a check box, and may shade the identifier corresponding to the selected file. . When canceling the selected file, for example, the user touches the inside of the second selection area AS2 corresponding to the selected file.

  Further, in the normal selection mode, the control unit 10 includes a plurality of second selection areas in accordance with the movement of the contact point in the first selection area AS1 or the identifier display area AN in the display surface 20A. A plurality of files corresponding to each of AS2 are changed. Specifically, the control unit 10 includes a plurality of second selection regions in accordance with a component along the Y axis of the movement vector of the contact point that moves within the display surface 20A (hereinafter referred to as a Y component in the present specification). A plurality of files corresponding to each of AS2 are changed.

  For example, when a contact point whose Y component of the movement vector is greater than or equal to a threshold value is detected in the display surface 20A, the control unit 10 determines a plurality of first points based on the direction of the Y component of the detected movement vector of the contact point. A plurality of files corresponding to each of the two selection areas AS2 are changed. If the Y component of the contact point movement vector is equal to or greater than the threshold value and is directed in the positive direction of the Y-axis, the plurality of files corresponding to each of the plurality of second selection areas AS2 are the plurality of files set by the user. The file is changed to a file close to the end in the file order. On the other hand, if the Y component of the movement vector is equal to or greater than the threshold value and faces the negative direction of the Y axis, the plurality of files corresponding to each of the plurality of second selection areas AS2 are the plurality of files set by the user. It is changed to the file near the top in the order of.

Hereinafter, a specific example will be described. In this specific example, the threshold value of the Y component of the movement vector of the contact point is 0.2 inches (about 0.5 cm), and the first selection area AS1 includes 16 second selection areas AS2. Each of the 16 second selection areas AS2 corresponds to the file 17 to the file 32. The storage unit of the display device 1 stores files 1 to 48. The user associates each of the files 1 to 48 with the plurality of second selection areas AS2 in the order of the file names of the files 1 to 48.

First, the touch panel 30 detects a contact point that has a Y component of the movement vector of 0.2 inches (about 0.5 cm) or more and faces the positive direction of the Y axis in the display surface 20A. Then, the control unit 10 changes the files 17 to 32 corresponding to each of the plurality of second selection areas AS2 to files 33 to 48 that are close to the end in the order of the plurality of files set by the user. In addition, the control unit 10 displays file names as identifiers of the files 33 to 48 on the display unit 20 so as to correspond to regions adjacent to each of the plurality of second selection regions AS2 in the identifier display region AN. Display.

On the other hand, the touch panel 30 detects a contact point in which the Y component of the movement vector is 0.2 inches (about 0.5 cm) or more and faces the negative direction of the Y axis in the display surface 20A. Then, the control unit 10 changes the files 17 to 32 corresponding to each of the plurality of second selection areas AS2 to files 1 to 16 close to the top in the order of the plurality of files set by the user. In addition, the control unit 10 displays the file names as the identifiers of the files 1 to 16 on the display unit 20 so as to correspond to the regions adjacent to each of the plurality of second selection regions AS2 in the identifier display region AN. Display.

Next, details of the continuous selection mode will be described with reference to FIG. FIG. 3 shows the continuous selection control executed by the display device 1 in the continuous selection mode. The continuous selection control is control in which a user selects a plurality of files continuously by tracing the display surface 20A. In FIG. 3, as in FIG. 2, for convenience of explanation, each of the two first selection areas AS <b> 1 and the two identifier display areas AN is indicated by broken lines, but actually there are no broken lines. The control unit 10 switches from the normal selection mode to the continuous selection mode in response to detection of a contact point where the touch panel 30 has stopped for a predetermined time or longer in the first selection area AS1. The user can arbitrarily set the predetermined time. For example, when the predetermined time is set to 2 seconds, the control unit 10 changes from the normal selection mode to the continuous selection mode in response to detecting the touch point where the touch panel 30 has stopped in the first selection area AS1 for 2 seconds or more. Switch to.

  In the continuous selection mode, the control unit 10 selects a file corresponding to the second selection area AS2 through which the contact point has passed among the plurality of second selection areas AS2. For example, as illustrated in FIG. 3, the touch panel 30 detects a contact point that moves from the position P20 to the position P30 as indicated by an arrow A1. That is, the touch panel 30 detects a contact point that moves through the second selection area AS2 corresponding to each of the files 18 to 23. Therefore, the control unit 10 selects the files 18 to 23 and makes the check boxes corresponding to the files 18 to 23 stand out. In the present embodiment, check marks are displayed in the check boxes corresponding to the files 18 to 23, respectively.

  In the continuous selection mode, the control unit 10 controls the plurality of second selection areas AS2 corresponding to each of the plurality of second selection areas AS2 in accordance with the movement of the contact point in the identifier display area AN on the display surface 20A in the continuous selection mode. Change the file. On the other hand, when the contact point that moves within the first selection area AS1 is detected on the display surface 20A in the continuous selection mode, the control unit 10 creates a plurality of files corresponding to each of the plurality of second selection areas AS2. Let it be maintained. That is, in the continuous selection mode, even if the user traces within the first selection area AS1 of the display surface 20A, the plurality of files corresponding to each of the plurality of second selection areas AS2 is not changed, and corresponds to the identifier display area AN. The plurality of identifiers displayed in the area are not changed. Accordingly, in the continuous selection mode, when the user traces within the first selection area AS1, the display content of the display unit 20 is not changed.

  The control unit 10 switches from the continuous selection mode to the normal selection mode in response to detecting a contact point where the touch panel 30 has stopped within the first selection area AS1 for a predetermined time or more. Note that the control unit 10 may switch from the continuous selection mode to the normal selection mode in response to the touch of the mode display frame 21 in which the selected mode is displayed. In the continuous selection mode, when the user releases the contact with the display surface 20A after tracing the first selection area AS1, the continuous selection mode may be maintained or may be switched to the normal selection mode.

  With reference to FIGS. 1-4, the continuous selection control method which the display apparatus 1 performs is demonstrated. FIG. 4 is a flowchart showing the continuous selection control method. In the continuous selection control method, a plurality of files are continuously selected by executing Steps S10 to S60. Specifically, it is as follows. First, the control unit 10 selects the normal selection mode.

  In step S10, the touch panel 30 detects a contact point in the first selection area AS1. In step S20, the control unit 10 determines whether or not the position of the detected contact point is within the second selection area AS2. If an affirmative determination (YES) is made in step S20, the process proceeds to step S30. In step S30, the control unit 10 selects a file corresponding to the second selection area AS2 where the detected contact point is located. If a negative determination (NO) is made in step S20, the process proceeds to step S40.

  In step S40, the control unit 10 determines whether or not the contact point detected by the touch panel 30 is stopped, that is, the contact time of the contact point with the display surface 20A exceeds a predetermined time. If a negative determination (NO) is made in step S40, the process returns to step S10. That is, the normal selection mode is maintained unless the contact time of the detected contact point with the display surface 20A exceeds a predetermined time. If a positive determination (YES) is made in step S40, the process proceeds to step S50. In step S50, the control unit 10 switches from the normal selection mode to the continuous selection mode.

  In step S60, the control unit 10 selects a file corresponding to the second selection area AS2 through which the contact point detected on the touch panel 30 has passed. That is, the user continuously selects a plurality of files by tracing the check boxes displayed on the display surface 20A.

  As described above with reference to FIGS. 1 to 4, according to the first embodiment, when a contact point stopped for a predetermined time or more in the first selection area AS <b> 1 is detected, the normal selection mode is changed to the continuous selection mode. Be changed. Therefore, the user can switch the mode to the continuous selection mode simply by touching the display surface 20A of the display unit 20. As a result, the user can shift the file to the continuous selection mode with a simple operation.

  Further, according to the first embodiment, after a contact point stopped for a predetermined time or more in the first selection area AS1, that is, in the continuous selection mode, the control unit 10 performs the second selection area AS2 through which the contact point has passed. The file corresponding to is selected. Therefore, the user can select a plurality of files by moving a finger on the display surface 20A. As a result, the user can select a plurality of files with a simple operation.

  Furthermore, according to the first embodiment, in the continuous selection mode, a plurality of files corresponding to each of the plurality of second selection areas AS2 is maintained according to the contact point that moves within the first selection area AS1. Accordingly, the user can select a plurality of files by moving his / her finger on the display surface 20A while maintaining a plurality of files corresponding to each of the plurality of second selection areas AS2 in the continuous selection mode. As a result, the user can select a plurality of files with a simpler operation.

  Next, a first modification of the first embodiment will be described with reference to FIGS. When the touch panel 30 detects a contact point in the predetermined second selection area AS2 among the plurality of second selection areas AS2, the control unit 10 corresponds to each of the plurality of second selection areas AS2. Change multiple files.

  For example, the predetermined second selection area AS2 is the second selection area AS2 assigned to the lower right of the display surface 20A. The second selection area AS2 assigned to the lower right of the display surface 20A is a file close to the end in the order of the plurality of files set by the user among the plurality of files corresponding to each of the plurality of second selection areas AS2. Correspond. In this case, when the touch panel 30 detects the contact point in the second selection area AS2 assigned to the lower right of the display surface 20A, the control unit 10 corresponds to each of the plurality of second selection areas AS2. Modify multiple files. The plurality of files corresponding to each of the plurality of second selection areas AS2 is changed to a file close to the end in the order of the plurality of files set by the user, for example.

  According to the first modification, a plurality of touch points are detected in response to detection of a contact point in a predetermined second selection area AS2, that is, a corresponding file is selected in the predetermined second selection area AS2. The file corresponding to each of the second selection areas AS2 is changed. For example, a plurality of second selection areas AS2 are selected in response to selection of a file close to the end in the order of the plurality of files set by the user from among a plurality of files corresponding to each of the plurality of second selection areas AS2. Multiple files corresponding to are changed. Therefore, the user can change a plurality of files corresponding to each of the plurality of second selection areas AS2 by touching the display surface 20A. That is, the user can change a plurality of files displayed on the display unit 20 to a plurality of other files by touching the display surface 20A. As a result, the user can select a plurality of files with a simple operation.

  Next, a second modification of the first embodiment will be described with reference to FIGS. In response to the touch panel 30 detecting a contact point passing through a predetermined number of second selection areas AS2 among the plurality of second selection areas AS2, the control unit 10 includes a plurality of points included in the first selection area AS1. All the files corresponding to each of the second selection areas AS2 are selected. The user can arbitrarily set the predetermined number. The predetermined number is, for example, 50% of the number of all the second selection areas AS2 included in the first selection area AS1. In this case, when the touch panel 30 detects a contact point passing through the second selection area AS2 that is 50% or more of the plurality of second selection areas AS2, the control unit 10 includes the first selection area AS1. All the files corresponding to each of the two selection areas AS2 are selected. Specifically, when 18 first selection areas AS2 are included in the first selection area AS1, the predetermined number is nine. Therefore, all the files corresponding to each of the 18 second selection areas AS2 are selected when the touch panel 30 detects a contact point passing through the 9 or more second selection areas AS2.

  According to the second modified example, the passage of a predetermined number of second selection areas AS2 at the contact point among the plurality of second selection areas AS2 is detected, that is, a predetermined number of second selection areas AS2. In response to selection of a file corresponding to each of the files, a file corresponding to each of all the second selection areas AS2 included in the first selection area AS1 is selected. Therefore, the user can select a plurality of files corresponding to each of all the second selection areas AS2 included in the first selection area AS1 by tracing a part of the display surface 20A. As a result, the user can select a plurality of files with a simple operation.

  Next, a third modification of the first embodiment will be described with reference to FIGS. In the third modification, each of the plurality of second selection areas AS2 corresponds to the file 17 to the file 32. In the continuous selection mode, when the touch panel 30 detects a contact point that passes through the first selection area AS1 and moves outside the first selection area AS1, that is, to the identifier display area AN, the control unit 10 includes a plurality of second selection areas. A plurality of files corresponding to each of AS2 are changed. That is, in the continuous selection mode, when the user traces within the first selection area AS1 of the display surface 20A and further traces the identifier display area AN, the files corresponding to the plurality of second selection areas AS2 are changed. The files 17 to 32 corresponding to each of the plurality of second selection areas AS2 are changed to, for example, files 33 to 48 close to the end in the order of the plurality of files set by the user.

  According to the third modification, the file corresponding to each of the plurality of second selection areas AS2 is changed by tracing the first selection area AS1 and further tracing the identifier display area AN in the continuous selection mode. Is done. The plurality of files corresponding to each of the plurality of second selection areas AS2 is changed to a file close to the end in the order of the plurality of files set by the user, for example. Therefore, the user can change a plurality of files corresponding to each of the plurality of second selection areas AS2 by tracing the first selection area AS1 and further tracing the identifier display area AN. As a result, the user can select a plurality of files with a simple operation.

(Embodiment 2)
With reference to FIG. 5, an image forming apparatus 2 according to Embodiment 2 of the present invention will be described. FIG. 5 shows the image forming apparatus 2. The image forming apparatus 2 is, for example, a copying machine, a printer, a facsimile machine, or a multifunction machine. The multi-function peripheral includes, for example, at least two devices among a copier, a printer, and a facsimile.

  The image forming apparatus 2 includes a control unit 10, a document transport unit 100, an image reading unit 110, a storage unit 120, a transport unit 130, an image forming unit 140, a fixing unit 150, a discharge unit 160, and a plurality of units. And a storage unit 170 for storing the file. The sheet T is transported inside the image forming apparatus 2 along the sheet transport direction.

  The control unit 10 functions as the control unit 10 according to the first embodiment, the display unit 20 functions as the display unit 20 according to the first embodiment, and the touch panel 30 functions as the touch panel 30 according to the first embodiment. Therefore, the control unit 10, the display unit 20, and the touch panel 30 provided in the image forming apparatus 2 constitute the display device 1 according to the first embodiment.

  The document transport unit 100 transports the document toward the image reading unit 110. The image reading unit 110 reads an image of a document and generates image data. The storage unit 120 stores the sheet T. The storage unit 120 includes a cassette 121 and a manual feed tray 123. The cassette 121 stacks sheets T. The sheet T is sent out from the cassette 121 or the manual feed tray 123 to the conveyance unit 130. The sheet T is, for example, plain paper, copy paper, recycled paper, thin paper, thick paper, glossy paper, or an OHP (Overhead Projector) sheet.

  The conveyance unit 130 conveys the sheet T to the image forming unit 140. The image forming unit 140 includes a photosensitive drum 141, a charging unit 142, an exposure unit 143, a developing unit 144, a transfer unit 145, a cleaning unit 146, and a charge eliminating unit 147, and forms (prints) an image on the sheet T.

  The sheet T on which the image has been transferred is conveyed toward the fixing unit 150. The fixing unit 150 heats and pressurizes the sheet T to fix the image on the sheet T. The sheet T on which the image is fixed is conveyed toward the discharge unit 160. The discharge unit 160 discharges the sheet T.

  The storage unit 170 includes a main storage device (for example, a semiconductor memory) and an auxiliary storage device (for example, a hard disk drive).

  The control unit 10 controls each element of the image forming apparatus 2. Specifically, when the control unit 10 executes a computer program stored in the storage unit 170, the display unit 20, the document conveying unit 100, the image reading unit 110, the storage unit 120, the conveying unit 130, and the image forming unit. 140 and the fixing unit 150 are controlled. The control unit 10 is, for example, a CPU (Central Processing Unit).

  As described above with reference to FIG. 5, according to the second embodiment, the image forming apparatus 2 functions as the display device 1 according to the first embodiment. Accordingly, as in the first embodiment, a plurality of files can be selected continuously. In addition, the same effects as those of the first embodiment can be obtained.

  The embodiments of the present invention have been described above with reference to the drawings (FIGS. 1 to 5). However, the present invention is not limited to the above-described embodiment, and can be implemented in various modes without departing from the gist thereof (for example, (1) to (3) shown below). In order to facilitate understanding, the drawings schematically show each component as a main component, and the thickness, length, number, and the like of each component shown in the drawings are different from the actual for convenience of drawing. . Moreover, the shape, dimension, etc. of each component shown by said embodiment are an example, Comprising: It does not specifically limit, A various change is possible in the range which does not deviate substantially from the effect of this invention.

  (1) As described with reference to FIGS. 2 and 3, each of the two first selection areas AS1 and the two identifier display areas AN extends from one end to the other end of the long side of the display surface 20A. Assigned to. However, each of the two first selection areas AS1 and the two identifier display areas AN may be allocated so as to extend from one end to the other end on the short side of the display surface 20A.

  (2) As described with reference to FIG. 2 and FIG. 3, the mode display frame 21 included in the display unit 20 allows the user to confirm the selected mode. However, the control unit 10 changes the content displayed on the display unit 20, for example, the background color displayed on the display unit 20 according to the selected mode, so that the user can confirm the selected mode. Also good.

  (3) A plurality of files corresponding to each of the plurality of second selection areas AS2 are changed based on the Y component of the movement vector of the contact point. However, a plurality of files corresponding to each of the plurality of second selection areas AS2 may be changed based on the X component of the movement vector of the contact point.

  The present invention relates to a display device and an image forming apparatus, and has industrial applicability.

DESCRIPTION OF SYMBOLS 1 Display apparatus 2 Image forming apparatus 10 Control part 20 Display part 20A Display surface 30 Touch panel (detection part)
AS1 First selection area AS2 Second selection area AN Identifier display area T sheet

Claims (8)

A display unit having a display surface;
A controller that assigns a first selection area to the display surface;
A detection unit for detecting a position of a contact point on the display surface,
The first selection area includes a plurality of second selection areas corresponding to a plurality of files,
In response to the detection unit detecting the contact point in a second selection region corresponding to a file close to the end in the order of the plurality of files among the plurality of second selection regions, A display device that changes the plurality of files corresponding to each of a plurality of second selection areas . Wherein, in response to movement of the previous SL within the first selected region of the contact point, changing the plurality of files corresponding to each of the plurality of second selected region display according to claim 1 apparatus. The control unit assigns an identifier display area to the display surface so as to be adjacent to the first selection area,
The control unit is arranged in each of the plurality of second selection regions so that the region corresponding to the identifier display region in the display unit is adjacent to the region corresponding to each of the plurality of second selection regions. The display device according to claim 1, wherein identifiers of the plurality of corresponding files are displayed. In response to the detection unit detecting the contact point passing through a predetermined number of second selection regions among the plurality of second selection regions, the control unit includes the plurality of the plurality of second selection regions included in the first selection region. second selecting said plurality of files corresponding to all of the selection area, the display device according to any one of claims 1 to 3 in. The control unit can switch the normal selection mode to the continuous selection mode,
  In the continuous selection mode, the control unit
Selecting a file corresponding to the second selection area through which the contact point has passed among the plurality of second selection areas;
    When detecting the contact point moving within the identifier display area, the plurality of files corresponding to each of the plurality of second selection areas is changed,
5. The device according to claim 1, wherein when the contact point moving within the first selection region is detected, the plurality of files corresponding to each of the plurality of second selection regions are not changed. The display device described in 1. In the continuous selection mode, when detecting the contact point that passes through the first selection area and moves to the identifier display area , the control unit detects the plurality of files corresponding to each of the plurality of second selection areas. The display device according to claim 5 , wherein: A display device according to any one of claims 1 to 6,
An image forming apparatus comprising: an image forming unit that forms an image on a sheet based on a selected image file.   A display unit having a display surface;
  A controller that assigns a first selection area to the display surface;
  A detection unit for detecting a position of a contact point on the display surface;
  With
  The first selection area includes a plurality of second selection areas corresponding to a plurality of files,
In response to the detection unit detecting the contact point passing through a predetermined number of second selection regions among the plurality of second selection regions, the control unit includes the plurality of the plurality of second selection regions included in the first selection region. A display device that selects the plurality of files corresponding to all of the second selection areas.

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