JP2024030783A - Display device, display device control method and program - Google Patents

Abstract

The present invention provides a display device with improved operability and user convenience.
A display device 100 has a detection unit 173 that detects an operation on a touch panel 131 of a display unit 130, and a detection unit 173 that detects an operation on a touch panel 131 of a display unit 130. When the viewing screen 20B is enlarged and displayed on the touch panel 131 and displays a part of the image of the N page and the image of the N+1 page or the N-1 page, an operation to be detected by the detection unit 173 is set in advance. If the conditions are not satisfied, the viewing screen 20B that displays the image of page N is displayed on the display section 130, and when the operation satisfies the conditions, the viewing screen 20B that displays the image of page N+1 or page N-1 is displayed on the display section 130. 130.
[Selection diagram] Figure 1

Description

The present invention relates to a display device, a display device control method, and a program.

Conventionally, devices have been known that display a plurality of thumbnail images arranged in a predetermined order on a display screen, and when a desired thumbnail image is selected by touching it, a menu icon associated with the desired thumbnail image is displayed. It is being
For example, Patent Document 1 discloses a first display step of displaying a page image in a first area of a display screen, a second display step of displaying a plurality of thumbnail images in a second area different from the first area of the display screen, Disclosed is a display control method including:

Japanese Patent Application Publication No. 2017-142711

In a display device that displays multiple pages of a document file while swiping, when a page is enlarged and displayed, when swiping to the next page while displaying the bottom of the page, the top of the next page is not displayed. Therefore, it is necessary to reduce the display magnification each time, swipe the page, and display it again in an enlarged manner, which poses a problem in that the operation is complicated.

The present disclosure includes a display unit, a detection unit that detects an operation on the display surface of the display unit, and a display unit that enlarges an image of page N and an image of page N+1 or page N−1 of a file at a predetermined display magnification. , an operation to be detected by the detection unit is set in advance in a state where a display screen displaying an image of the N page and a part of the image of the N+1 page or the N-1 page is displayed in an enlarged manner on the display surface. If the condition is not satisfied, the display screen that displays the image of the N page is displayed on the display section, and if the operation satisfies the condition, the display screen that displays the image of the N+1 page or the N-1 page is displayed on the display section. The display device includes a control section that causes the display section to display a display screen.

The present disclosure includes a display unit, a detection unit that detects an operation on the display surface of the display unit, a first page group image that displays page N and page N+1 of a file, and a second page group that displays page N+2 and page N+3 of a file. The images of the second page group or the images of the third page group displaying pages N-2 and N-1 are enlarged at a predetermined display magnification, and the images of the first page group and the second page are enlarged at a predetermined display magnification. When the operation detected by the detection unit does not satisfy a preset condition in a state where a display screen displaying a part of the images of the group or the images of the third page group is enlarged and displayed on the display surface, The display screen that displays images of a first page group is displayed on the display unit, and when the operation satisfies the conditions, the display screen that displays images of the second page group or images of the third page group A control section that causes the display section to display the following.

The present disclosure includes a step of detecting an operation on a display surface of a display unit, and enlarging an image of page N and an image of page N+1 or page N-1 of a file at a predetermined display magnification, and and the operation detected by the detecting step does not satisfy a preset condition in a state where a display screen displaying a part of the image of the N+1 page or the N-1 page is enlarged and displayed on the display surface. a step of displaying the display screen that displays the image of the N page on the display unit; and, if the operation satisfies the condition, displaying the display screen that displays the image of the N+1 page or the N-1 page; A method for controlling a display device, comprising the step of displaying information on the display section.

The present disclosure includes a step of detecting an operation on a display surface of a display unit, an image of a first page group displaying page N and page N+1 of a file, an image of a second page group displaying page N+2 and page N+3, Alternatively, images of a third page group displaying pages N-2 and N-1 are enlarged at a predetermined display magnification, and images of the first page group and images of the second page group or images of the second page group are enlarged at a predetermined display magnification. If the operation detected in the detecting step does not satisfy a preset condition when the display screen displaying a part of the images of the third page group is enlarged and displayed on the display surface, the first page group displaying the display screen that displays images on the display unit; and when the operation satisfies the condition, displaying the display screen that displays the images of the second page group or the third page group; This is a method for controlling a display device, comprising the step of displaying the image on the screen.

The present disclosure provides a procedure for detecting an operation on a display surface of a display unit in a computer, enlarging an image of page N and an image of page N+1 or page N-1 of a file at a predetermined display magnification, and In a state in which a display screen displaying an image of a page and a part of the image of the N+1 page or the N-1 page is enlarged and displayed on the display surface, the operation to be detected by the detecting procedure is performed under preset conditions. If the conditions are not satisfied, the display screen for displaying the image of the N page is displayed on the display section, and if the operation satisfies the condition, the step for displaying the image of the N+1 page or the N-1 page. This program executes a procedure for displaying a display screen on the display unit.

The present disclosure provides a procedure for detecting an operation on a display surface of a display unit in a computer, a first page group image displaying page N and page N+1 of a file, and a second page group displaying page N+2 and page N+3 of a file. or the image of the third page group displaying pages N-2 and N-1 is enlarged at a predetermined display magnification, and the image of the first page group and the image of the second page group are enlarged at a predetermined display magnification. Alternatively, when the operation detected by the detection procedure does not satisfy a preset condition in a state where a display screen displaying a part of the images of the third page group is enlarged and displayed on the display surface, the first A procedure for displaying the display screen that displays images of a page group on the display unit, and when the operation satisfies the conditions, the display screen that displays images of the second page group or images of the third page group. This is a program that executes a procedure for displaying on the display unit.

FIG. 3 is a diagram showing the configuration of a display device. The figure which shows an example of a 1st thumbnail image bundle. The figure which shows an example of a list screen. The figure which shows an example of a viewing screen. FIG. 3 is a diagram showing an example of a first thumbnail image bundle displayed in a first display area. The figure which shows the 1st display area at the time of enlarged display. An explanatory diagram of a swipe operation. An explanatory diagram of a swipe operation. An explanatory diagram of a swipe operation. An explanatory diagram of a swipe operation. An explanatory diagram of a swipe operation. An explanatory diagram of a swipe operation. 5 is a flowchart showing the operation of the display device. 5 is a flowchart showing the operation of the display device. 5 is a flowchart showing the operation of the display device. 5 is a flowchart showing the operation of the display device.

Embodiments will be described below with reference to the accompanying drawings.
FIG. 1 is a diagram showing the configuration of a display device 100.
The configuration of the display device 100 will be described with reference to FIG. 1.
The display device 100 includes a wireless communication section 110, a display section 130, and a control section 150. The display device 100 is, for example, a notebook, desktop, or tablet personal computer, a smartphone, or the like.

The wireless communication unit 110 includes a wireless module and an antenna, and communicates with an external device such as a server device via a wireless network. Illustrations of the wireless module and antenna are omitted.

The display unit 130 includes a touch panel 131 including a display panel and a touch sensor. The touch panel 131 corresponds to a display surface. For example, a liquid crystal panel or an organic EL (Electro Luminescence) panel is used as the display panel. The touch sensor detects a touch operation on the display panel. The touch sensor detects a touch position, which is a position on the touch panel 131 that is touched by an indicator such as an electronic pen or a user's finger. The touch sensor outputs an operation signal including the detected touch position to the control unit 150. The touch position is indicated by coordinates in a coordinate system set on the display panel.

Control unit 150 includes a storage unit 160 and a processor 170.

The storage unit 160 includes a volatile semiconductor memory such as a RAM (Random Access Memory) and a non-volatile semiconductor memory such as a ROM (Read Only Memory). Further, for example, when the display device 100 is a smartphone, the storage unit 160 may be configured to include an SD card. Furthermore, if the display device 100 is a personal computer, it may be configured to include an auxiliary storage device such as an SSD (Solid State Drive) or an HDD (Hard Disk Drive).

The storage unit 160 stores an OS (Operating System) 161 executed by the processor 170 and application programs 163. The application program 163 is hereinafter referred to as an application 163.

Furthermore, the storage unit 160 stores a document file 165 and a setting file 167. The document file 165 includes, for example, an electronic manual, an electronic book, a document created by a user, and the like. The document file 165 may be a file generated by the user executing the application 163, or may be a file obtained by the wireless communication unit 110 from an external device.

The configuration file 167 is a file in which operation settings of the OS 161 and the application 163 are recorded. The setting file 167 of this embodiment includes a setting for whether or not to display the page image 25 in a two-page spread when the touch panel 131 is in the horizontal screen display state. The settings file 167 also includes the screen size of the touch panel 131.

The processor 170 is composed of a CPU (Central Processing Unit). Further, the control unit 150 may be configured by an SoC (System-on-a-Chip) equipped with a CPU, a GPU (Graphics Processing Unit), a communication interface, various sensors, and the like.
The processor 170 executes the OS 161 and the application 163 to control each part of the display device 100.

The control unit 150 includes a thumbnail image bundle generation unit 171, a detection unit 173, and a display generation unit 175 as functional blocks. These functional blocks are blocks that conveniently represent functions that are realized when the processor 170 executes the OS 161 and the application 163.

FIG. 2 is a diagram showing an example of the first thumbnail image bundle 21.
The thumbnail image bundle generation unit 171 reads the document file 165 from the storage unit 160 and generates a first thumbnail image 211 by reducing the image of each page of the read document file 165. The thumbnail image bundle generation unit 171 generates an overhead image of the first thumbnail image bundle 21 based on the first thumbnail image bundle 21 that is a bundle of the plurality of generated first thumbnail images 211 . The bird's-eye view image is an image that an observer visually recognizes when the observer views the first thumbnail image bundle 21 arranged in the virtual space from an arbitrary viewpoint in the virtual space.

The thumbnail image bundle generation unit 171 arranges the plurality of first thumbnail images 211 along a first virtual axis Q parallel to the horizontal direction of the touch panel 131. The plurality of first thumbnail images 211 can be moved along the first virtual axis Q in response to a user's operation.
Further, the thumbnail image bundle generation unit 171 generates a plurality of first thumbnail images 211 centered on an axis parallel to the second virtual axis M that is parallel to the vertical direction of the touch panel 131 and intersects the first virtual axis Q. Rotate. Further, the thumbnail image bundle generation unit 171 generates an overhead image of the first thumbnail image bundle 21 by rotating it around an axis parallel to the first virtual axis Q.

The detection unit 173 detects an operation on the touch panel 131 based on an operation signal input from the touch sensor.
The operations detected by the detection unit 173 include touch operations, swipe operations, and fling operations. The detection unit 173 also detects the amount of swipe operation. Specifically, the detection unit 173 detects the amount of movement of the finger touching the touch panel 131 on the touch panel 131 as the operation amount.

The display control unit 175 generates the application screen 20 to be displayed on the touch panel 131 based on the first thumbnail image bundle 21 generated by the thumbnail image bundle generation unit 171, the page image 25 of the page included in the document file 165, and the like. The application screen 20 includes a list screen 20A and a viewing screen 20B shown in FIGS. 3 and 4, respectively. A home button 11 associated with an operation to return to the home screen and a back button 13 associated with an operation to return to the previous screen are displayed on the list screen 20A and the viewing screen 20B, respectively.

The application screen 20 will be explained with reference to FIGS. 3 to 12.
In FIGS. 3 to 12, the upward direction in the figures is indicated by the symbol UP, the downward direction in the figures is indicated by the symbol DW, and the direction to the left in the figures is indicated by the symbol L. The direction toward the right in the figure is designated by the symbol R as the right direction.

FIG. 3 is a diagram showing an example of the list screen 20A.
The list screen 20A is a screen displaying a list of document files 165 stored in the storage unit 160. On the list screen 20A, a combination of the first thumbnail image bundle 21 and the main thumbnail image 23 is displayed for each document file 165. The following description will be made assuming that the storage unit 160 stores document files 165A, B, C, . . . , N. The first thumbnail image bundle 21 of the document file 165A is displayed as a first thumbnail image bundle 21A, and the main thumbnail image 23 is represented as a main thumbnail image 23A. The same applies to documents B, . . . , N. Further, in this embodiment, a case will be described in which a first thumbnail image bundle 21A, a main thumbnail image 23A, . . . , a first thumbnail image bundle 21N, and a main thumbnail image 23N are displayed on the list screen 20A. However, the list screen 20A can display the first thumbnail image bundle 21 and main thumbnail images 23 based on even more document files 165.

On the list screen 20A, a combination of the first thumbnail image bundle 21A based on the document file 165A and the main thumbnail image 23A is displayed at a predetermined position.
Further, the list screen 20A displays a combination of the first thumbnail image bundle 21B and the main thumbnail image 23B based on the document file 165B. The combination of the first thumbnail image bundle 21B and the main thumbnail image 23B is displayed below the combination of the first thumbnail image bundle 21A and the main thumbnail image 23A.
Further, the list screen 20A displays a combination of the first thumbnail image bundle 21C and the main thumbnail image 23C based on the document file 165C. The combination of the first thumbnail image bundle 21C and the main thumbnail image 23C is displayed below the combination of the first thumbnail image bundle 21B and the main thumbnail image 23B.

The first thumbnail image bundle 21 is an image group in which a plurality of first thumbnail images 211 are lined up in the left-right direction. Each of the first thumbnail images 211 included in the first thumbnail image bundle 21 is displayed in a bird's-eye view from a predetermined viewpoint. One first thumbnail image 211 included in the first thumbnail image bundle 21 corresponds to one page of the corresponding document file 165. The first thumbnail image 211 of this embodiment is a rectangular image.

The main thumbnail image 23 is a thumbnail image corresponding to a representative page of the document file 165. The representative page includes, for example, the top page of the document file 165. On the list screen 20A, a part of the first thumbnail image 211 of a predetermined page may be displayed as the main thumbnail image 23, or the entire first thumbnail image 211 of a predetermined page may be displayed as the main thumbnail image 23. It's okay.

On the list screen 20A, a selection operation for selecting a combination of the first thumbnail image bundle 21 and the main thumbnail image 23 can be input by touch operation. When the combination is selected on the list screen 20A, the display control unit 175 displays the viewing screen 20B regarding the selected document file 165.

FIG. 4 is a diagram showing an example of the viewing screen 20B. The viewing screen 20B corresponds to an example of a display screen. The viewing screen 20B includes a first display area 221 and a second display area 223.

The first display area 221 is an area for displaying the first thumbnail image bundle 21 selected on the list screen 20A. When a combination of the main thumbnail image 23 and the first thumbnail image bundle 21 is selected on the list screen 20A, the first thumbnail image bundle 21 included in the selected combination is displayed in the first display area 221.

The display control unit 175 changes the display mode of the first thumbnail image bundle 21 when a predetermined touch operation such as a swipe operation is performed with an indicator within the first display area 221 .

When a swipe operation to the right is performed in the first display area 221, the plurality of first thumbnail images 211 are moved to the left in the first display area 221 according to the amount of rightward movement of the indicator. Move to the right from the direction. When a swipe operation to the left is performed, the plurality of first thumbnail images 211 move from the right to the left in the first display area 221 according to the amount of movement of the indicator to the left. .

The second display area 223 is an area where the page image 25 of the page corresponding to the first thumbnail image 211 selected in the first display area 221 is displayed. In FIGS. 4 and 5, the page image 25 corresponding to the M-th page of the document indicated by the document file 165N is expressed as page images 25N-M. M is an integer of 1 or more. The page image 25B-111 shown in FIG. 4 shows the page image 25 corresponding to the 111th page of the document file 165B.

In the second display area 223, the displayed page image 25 is switched by performing a predetermined touch operation such as a swipe operation with the indicator.

When the document file 165 is a left-opening document and a predetermined touch operation to the right is performed in the second display area 223, in the second display area 223, the page image 25 that was displayed before the touch operation is A page image 25 of the page before the corresponding page is displayed. When a predetermined touch operation to the left is performed within the second display area 223, a page image of a page after the page corresponding to the page image 25 displayed before the touch operation is displayed within the second display area 223. 25 is displayed.

In the state of FIG. 4, when a swipe operation is performed to the right within the second display area 223, the page image 25B-110 of the page immediately before the page image 25B-111 is displayed in the second display area 223. be done. Illustration of the page image 25B-110 is omitted.
Further, in the state of FIG. 4, if a swipe operation is performed to the left within the second display area 223, the page image 25B-112 of the page after the page image 25B-111 will be displayed in the second display area 223. will be displayed. Illustration of the page image 25B-112 is omitted.

In the description of FIGS. 4 and 5, the first thumbnail image 211 corresponding to the Mth page of the document indicated by the document file 165N is expressed as first thumbnail images 211N-M. For example, the first thumbnail image 211B-98 indicates the first thumbnail image 211 corresponding to the 98th page of the document file 165B.
When the page image 25 displayed in the second display area 223 is switched, the display mode of the first thumbnail image bundle 21 changes in the first display area 221. That is, the first thumbnail image 211 corresponding to the page image 25 after switching is displayed at approximately the center in the left-right direction of the first display area 221. For example, when the page image 25B-110 is displayed in the second display area 223, the first thumbnail image 211B-110 is displayed at approximately the center of the first display area 221 in the left-right direction. Furthermore, when the page image 25B-112 is displayed in the second display area 223, the first thumbnail image 211B-112 is displayed approximately in the center of the first display area 221 in the left-right direction.
Note that in FIGS. 4 and 5, when there are margins on the left and right sides of the page image 25, only swipe operations in the vertical direction of the touch panel 131 are accepted, and swipe operations in the left and right directions are not accepted.

Further, when a swipe operation is performed within the first display area 221 and the first thumbnail image 211B-110 is displayed at approximately the center in the left-right direction of the first display area 221, the page image is displayed in the second display area 223. 25B-110 is displayed. Similarly, when a swipe operation is performed in the first display area 221 and the first thumbnail image 211B-112 is displayed at approximately the center in the left-right direction of the first display area 221, the page is displayed in the second display area 223. Image 25B-112 is displayed.

Here, the first thumbnail image bundle 21 displayed in the first display area 221 will be described in detail. FIG. 5 is a diagram showing an example of the first thumbnail image bundle 21 displayed in the first display area 221. FIG. 5 shows the display mode of the first display area 221 when the page image 25B-98 is displayed in the second display area 223. The first thumbnail image bundle 21B is displayed in the first display area 221, and the first thumbnail image 211B-98 is displayed approximately in the center of the first display area 221 in the left-right direction.

In the first display area 221, each of the first thumbnail images 211 is displayed side by side on the virtual axis KJ of the touch panel 131. The virtual axis KJ is an axis parallel to the left-right direction.

The first display area 221 has a right area 221R and a left area 221L. The right region 221R and the left region 221L are arranged in the left-right direction with the switching line L1 in between. The switching line L1 is a virtual line located to the left of the center line L2 indicating the center of the first display area 221 in the left-right direction, and extends in the vertical direction. The center line L2 also extends in the vertical direction similarly to the switching line L1.

In FIG. 5, the first thumbnail image 211B-98 is displayed overlapping the center line L2. The first thumbnail image 211B-97 corresponding to the page before the page corresponding to the first thumbnail image 211B-98 is displayed in the left area 221L. The first thumbnail image 211B-98 and the first thumbnail image 211B-99 are displayed in the right area 221R.
In the first display area 221, the orientation of the first thumbnail image 211 is switched based on the switching line L1.

Next, the page image 25 displayed in the second display area 223 will be explained.
First, a case where the touch panel 131 is used in vertical screen display will be described. Portrait screen display refers to a display method in which an image is displayed in an upright position when the touch panel 131 is held in a portrait orientation.

When a document file 165 is selected on the list screen 20A, the control unit 150 displays page images 25 of each page included in the selected document file 165 in the second display area 223.
When the touch panel 131 is used in vertical screen display, the control unit 150 displays the page images 25 of each page included in the document file 165 one by one in the second display area 223. Furthermore, when displaying one page at a time in the second display area 223 in vertical screen display, the control unit 150 changes the display magnification of the page image 25 to a display magnification of 100% or more. Displaying the page image 25 at a display magnification of 100% or more is called enlarged display. In the present embodiment, the control unit 150 changes the display magnification of the page image 25 so that the width of the page image 25 in the left and right direction matches the width of the second display area 223 in the left and right direction. That is, the display magnification of the page image 25 is changed so that the page image 25 is displayed over the entire width of the second display area 223 in the horizontal direction. The display magnification of the page image 25 displayed in the second display area 223 can be changed by a user's operation. The following description will be made assuming that N pages of page images 25 are displayed in the second display area 223. N is any natural number.

Next, a case will be described in which the touch panel 131 is used in horizontal screen display. Horizontal screen display refers to a display method in which an image is displayed upright when the touch panel 131 is held in a landscape orientation.

When using the touch panel 131 in horizontal screen display, the control unit 150 first refers to the setting file 167 and determines whether double-page spread display is enabled.
If the two-page spread display is enabled, the control unit 150 displays two pages of page images 25 in the second display area 223. The following description will be made assuming that page images 25 of page N and page N+1 are displayed as page images 25 of two pages. At this time, the display magnification of the page image 25 of the N page and the N+1 page is arbitrary, and may be 100%, for example, or the width in the horizontal direction of the page image 25 of the N page and the N+1 page is The display magnification may be set to match the width of the area 223 in the horizontal direction.
Further, when the two-page spread display is set to be disabled, the control unit 150 displays the page images 25 one page at a time in the second display area 223. Here again, the description will be made assuming that N pages of page images 25 are displayed as the page images 25 that are displayed one page at a time. The display magnification of the page image 25 of the N page at this time is also arbitrary, for example, it may be 100%, or the width of the page image 25 of the N page in the left and right direction is the same as that of the second display area 223 in the left and right direction. The display magnification may be set to match the width.

Further, the control unit 150 accepts swipe operations on the touch panel 131 in the vertical and horizontal directions in an enlarged display state in which the page image 25 is displayed at a display magnification greater than 100%.
Further, when displaying the page image 25 at a display magnification of 100% or less, the control unit 150 only accepts a swipe operation in the left and right directions on the touch panel 131. That is, when displaying the page image 25 at a display magnification of 100% or less, the control unit 150 does not accept a swipe operation on the touch panel 131 in the vertical direction.

Furthermore, in an enlarged display state where the page image 25 is displayed at a display magnification greater than 100%, the control unit 150 reduces the size of the first display area 221 in the vertical direction of the touch panel 131, and displays the first thumbnail image bundle. 21 is displayed in the first display area 221.

FIG. 6 is a diagram showing the states of the first display area 221 and the second display area 223 during enlarged display.
As shown in FIG. 6, when the touch panel 131 is used in portrait screen display and the page image 25 is enlarged, the size of the first display area 221 in the vertical direction of the touch panel 131 is reduced, and the first thumbnail image bundle is Only the upper part of 21 is displayed. By reducing the size of the first display area 221 in the vertical direction of the touch panel 131, the size of the second display area 223 in the vertical direction of the touch panel 131 is expanded, and the display of the page image 25 displayed in the second display area 223 is The range can be expanded. Although not shown, the same applies when the touch panel 131 is used in horizontal screen display.

Further, in the case where the selected document file 165 includes both vertically long pages and horizontally long pages, and the number of vertically long pages is greater than the number of horizontally long pages, the control unit 150 sets the page image 25 to 100%. Enlarge the display at a display magnification greater than . For example, the display magnification may be set so that the width of the page image 25 of page N in the left-right direction matches the width of the second display area 223 in the left-right direction. Furthermore, when the touch panel 131 is used in horizontal screen display and double-page display is enabled, the horizontal width of the page image 25 of page N and page N+1 is the same as that of the second display area 223 in the horizontal direction. The display magnification may be set to match the width.
Further, when the number of horizontally long pages is greater than the number of vertically long pages, the control unit 150 displays the page image 25 at a display magnification of 100%. In other words, the page image 25 is not displayed in an enlarged manner. This is the same whether the touch panel 131 is in a vertical screen display state or in a horizontal screen display state.

The setting file 167 also includes information about the screen size of the touch panel 131.
If the screen size of the touch panel 131 is less than a predetermined size, such as 7 inches, and the touch panel 131 is used in horizontal screen display, the control unit 150 controls the page image 25 even if the two-page spread setting is enabled. may be displayed on a page-by-page basis. Thereby, the visibility of the page image 25 can be improved.

Furthermore, if the selected document file 165 has been displayed twice or more, the control unit 150 may maintain the previous display state.
For example, assume that the touch panel 131 is used in horizontal screen display, and the two-page spread setting is enabled, but the previous display state was a display state in which page images 25 are displayed one page at a time. In this case, the control unit 150 displays the page images 25 one page at a time.

7 to 12 are explanatory diagrams for explaining the swipe operation.
Next, a swipe operation when using the touch panel 131 in portrait screen display and when using it in horizontal screen display will be described.
First, a case where the touch panel 131 is used in vertical screen display will be described.
FIG. 7 shows a case where page images 25 are displayed one page at a time in the second display area 223, and the width of the page image 25 in the left and right direction matches the width of the second display area 223 in the left and right direction. , which shows a state in which the page image 25 is displayed in an enlarged manner. When the page image 25 is enlarged and displayed, the control unit 150 accepts swipe operations in the vertical and horizontal directions. The upward swipe is an operation for moving the page image 25 upward on the touch panel 131 in the drawing view. The downward swipe is an operation for moving the page image 25 downward on the touch panel 131 in the drawing view. The upward direction corresponds to a first direction, and the downward direction corresponds to a second direction.
Note that in FIGS. 10 to 12, when there are blank spaces at the top and bottom of the page image 25, only swipe operations in the left and right directions of the touch panel 131 are accepted, and swipe operations in the up and down directions are not accepted.

FIG. 8 shows a state in which the page image 25 is swiped upward in response to a swipe operation in which the user swipes his or her finger upward.
In the second display area 223 shown in FIG. 8, a part of the page image 25-(N) of the N page and the upper end of the page image 25-(N+1) of the N+1 page are displayed by the user's upward swipe operation. is displayed.

The control unit 150 detects the amount of input swipe operation. Note that, hereinafter, the "operation amount of the swipe operation" detected by the control unit 150 means "the amount by which the edge of the page displayed as a result of the swipe operation exceeds the edge of the screen."
In the state shown in FIG. 8, if the user's finger leaves the touch panel 131 before the detected operation amount reaches a preset operation threshold, the control unit 150 changes the display state of the second display area 223. , return to the display state before the swipe operation was input. That is, the control unit 150 causes the page image 25-(N) of page N to be displayed in the second display area 223. At this time, the control unit 150 displays the page image 25-(N) of page N while maintaining the display magnification before the swipe operation was input.

FIG. 9 is a diagram showing the display state of the second display area 223 when the amount of the swipe operation is equal to or greater than the operation threshold.
In the state shown in FIG. 8, when the detected operation amount exceeds a preset operation threshold, the control unit 150 causes the page image 25-(N+1) of page N+1 to be displayed in the second display area 223. At this time, the control unit 150 displays the page image 25-(N+1) of page N+1 at the same display magnification as the page image 25-(N) of page N. When the touch panel 131 is used in portrait screen display, the operation threshold can be set, for example, in a range of 20 or more and 25% or less of the vertical width of the touch panel 131. Further, when the touch panel 131 is used in a horizontal screen display, the operation threshold value can be set, for example, in a range of 20 or more and 25% or less of the width of the touch panel 131 in the horizontal direction.

Although FIGS. 7 to 9 show cases in which the user swipes his or her finger upward, the control unit 150 similarly controls the display when the user swipes his or her finger downward.
When the control unit 150 detects a downward swipe operation, it moves the display position of the page image 25-(N) of page N in the second display area 223 downward in response to the detected swipe operation.
When the user swipes his or her finger further downward, the control unit 150 removes a part of the page image 25-(N) of page N, the bottom edge of page image 25-(N-1) of page N-1, is displayed in the second display area 223.

If the user's finger leaves the touch panel 131 before the detected operation amount of the swipe operation reaches a preset operation threshold, the control unit 150 changes the display state of the second display area 223 according to the swipe operation. Return to the display state before input. That is, the control unit 150 causes the page image 25-(N) of page N to be displayed in the second display area 223.
Furthermore, when the detected operation amount exceeds a preset operation threshold, the control unit 150 causes the page image 25-(N-1) of page N-1 to be displayed in the second display area 223. At this time, the control unit 150 changes the page image 25-(N-1) of the N-1 page to the page image 25-(N-1) of the N page that was displayed in the second display area 223 before the swipe operation was input. Display at the same display magnification as N).

In the above description, the case where the user's finger is swiped on the touch panel 131 has been described. Even when a fling operation is detected, the second display area 223 changes the page displayed in the second display area 223 while maintaining the display magnification.
The fling operation is an operation in which the fingertip is flicked quickly on the touch panel 131.
For example, in the display state shown in FIG. 8, when a fling operation is detected, the control unit 150 causes the page image 25-(N+1) of page N+1 to be displayed in the second display area 223.
Further, the control unit 150 performs a fling operation in a state where a part of the page image 25-(N) of the N page and the lower end of the page image 25-(N-1) of the (N-1) page are displayed. When detected, the page image 25-(N-1) of page (N-1) is displayed in the second display area 223.

Next, a case will be described in which the touch panel 131 is used in horizontal screen display.
FIG. 10 shows a case where the two-page spread display setting is valid and the page images 25 are displayed two pages at a time in the second display area 223. The second display area 223 shown in FIG. 10 shows a state in which page images 25-(N, N+1) of page N and page N+1 are displayed.
The control unit 150 accepts a swipe operation to the left or right when the page image 25 is not enlarged and displayed in a two-page spread display state. The left swipe is an operation for moving the page image 25 to the left of the touch panel 131 as viewed from the drawing. The right swipe is an operation for moving the page image 25 to the right on the touch panel 131 in the drawing view. Note that when the page image 25 is displayed in an enlarged manner, the movement of the page image 25 to the left or right may be displayed in 3D as if turning over the pages of a general book.

FIG. 11 shows a state in which the page image 25 is scrolled to the left in response to a swipe operation in which the user swipes his or her finger from right to left in the drawing during enlarged display.
In FIG. 11, a part of the page image 25-(N, N+1) of page N and page N+1 and a part of page image 25-(N+2, N+3) of page N+2 and page N+3 are shown as a result of the user's swipe operation to the left. The left end of and are displayed.
The page images 25-(N, N+1) of page N and page N+1 correspond to images of the first page group.
Page images 25-(N+2, N+3) of pages N+2 and N+3 correspond to images of the second page group.

The control unit 150 detects the amount of input swipe operation.
In the state shown in FIG. 11, if the user's finger leaves the touch panel 131 before the detected operation amount reaches a preset operation threshold, the control unit 150 changes the display state of the second display area 223. , return to the display state before the swipe operation was input. That is, the control unit 150 causes the page images 25-(N, N+1) of the N page and the N+1 page to be displayed in the second display area 223. At this time, the control unit 150 displays the page images 25-(N, N+1) of the N page and the N+1 page while maintaining the display magnification before the swipe operation is input.

FIG. 12 is a diagram showing the display state of the second display area 223 when the amount of the swipe operation is equal to or greater than the operation threshold.
In the state shown in FIG. 11, when the detected operation amount exceeds a preset operation threshold, the control unit 150 displays page images 25-(N+2, N+3) of pages N+2 and N+3 in the second display area. 223. At this time, the control unit 150 displays the page images 25-(N+2, N+3) of pages N+2 and N+3 at the same display magnification as the page images 25-(N, N+1) of pages N and N+1.

Although FIGS. 7 to 9 show cases in which the user swipes his or her finger upward, the control unit 150 similarly controls the display when the user swipes his or her finger to the right.
When the control unit 150 detects a swipe operation to the right, the control unit 150 changes the display position of the page images 25-(N, N+1) of the N page and the N+1 page in the second display area 223 to the right in response to the detected swipe operation. move it to
When the user further swipes his or her finger to the right, the control unit 150 displays a portion of the page images 25-(N, N+1) of pages N and N+1 and page images 25 of pages N-2 and N-1. - The right end of (N-2, N-1) is displayed in the second display area 223.
Page images 25-(N-2, N-1) of page N-2 and page N-1 correspond to images of the third page group.

If the user's finger leaves the touch panel 131 before the detected operation amount of the swipe operation reaches a preset operation threshold, the control unit 150 changes the display state of the second display area 223 according to the swipe operation. Return to the display state before input. That is, the control unit 150 causes the page images 25-(N, N+1) of the N page and the N+1 page to be displayed in the second display area 223.
Further, when the detected operation amount becomes equal to or greater than a preset operation threshold, the control unit 150 changes the page images 25-(N-2, N-1) of page N-2 and page N-1 to the second page. 2 display area 223. At this time, the control unit 150 sets the page images 25-(N-2, N-1) of the N-2 page and N-1 page to be the same as the page images 25-(N, N+1) of the N-page and N+1 page. display at the display magnification.

13 to 16 are flowcharts showing the operation of the display device 100.
The operation of the display device 100 will be described with reference to the flowchart shown in FIG. 13.
First, when the application 163 is selected, the control unit 150 executes the selected application 163 and displays the list screen 20A included in the application screen 20 on the touch panel 131 (step S1). Next, the control unit 150 determines whether one document file 165 has been selected from among the document files 165 displayed in a list on the list screen 20A (step S2).

If the document file 165 is not selected (step S2/NO), the control unit 150 waits until the document file 165 is selected.
When the document file 165 is selected (step S2/YES), the control unit 150 determines whether the touch panel 131 is in a vertical screen display state (step S3).
The operation of the display device 100 when the touch panel 131 is in the horizontal screen display state will be described with reference to the flowcharts shown in FIGS. 15 and 16.

When the touch panel 131 is in the vertical screen display state (step S3/YES), the control unit 150 displays the viewing screen 20B in which the page image 25 of page N of the selected document file 165 is displayed in the second display area 223. Display (step S4).

In the second display area 223 of the viewing screen 20B, a page image 25-(N) of page N is displayed enlarged at a predetermined display magnification. The page image 25-(N) of page N is enlarged and displayed so that its width matches the width of the second display area 223.

Next, the control unit 150 determines whether a swipe operation has been input (step S5). If a swipe operation has not been input (step S5/NO), the control unit 150 moves to determination in step S10.
When the swipe operation is input (step S5/YES), the control unit 150 first changes the display magnification of the page image 25-(N) of page N displayed in the second display area 223 to a preset display magnification. It is determined whether it is larger than a threshold (step S6). In this embodiment, the display threshold is set to a display magnification of 100%, but is not limited to a display magnification of 100%. If the display magnification of the page image 25-N is greater than the display threshold, it is determined that the page image 25-N is in an enlarged display state.

If the display magnification of the page image 25-(N) of page N is larger than the display threshold (step S6/YES), the control unit 150 determines that the operation direction of the swipe operation input in step S5 is the same as that of the touch panel 131. It is determined whether the operation is to the left or to the right (step S7).
If the control unit 150 determines that the direction of the swipe operation input in step S5 is not an operation to the left or right of the touch panel 131 (step S7/NO), the control unit 150 does not accept the swipe operation (step S8). ).

Furthermore, when the operation direction of the swipe operation input in step S5 is an operation to the left or right of the touch panel 131 (step S7/YES), the control unit 150 controls the page image 25-(N ) is scrolled horizontally (step S9). The control unit 150 scrolls the page image 25-(N) of page N in the leftward or rightward direction, which is the operating direction of the swipe operation.

Next, the control unit 150 determines whether an operation to change the display magnification has been received (step S10). If the control unit 150 has not received the display magnification changing operation (step S10/NO), the control unit 150 moves to the determination in step S12.
Further, when the control unit 150 receives an operation to change the display magnification (step S10/YES), the control unit 150 changes the display magnification of the page image 25-(N) of page N to the display magnification specified by this operation ( Step S11).

Next, the control unit 150 determines whether an operation to return to the previous screen, the list screen 20A, has been received (step S12). If the control unit 150 does not accept an operation to return to the previous screen (step S12/NO), the control unit 150 returns to the determination in step S5.
Further, when the control unit 150 receives an operation to return to the previous screen (step S12/YES), the control unit 150 closes the viewing screen 20B and returns to the list screen 20A (step S13).

Next, referring to FIG. 14, the control unit when it is determined in step S6 that the display magnification is larger than the display threshold and the page image 25-(N) of page N is displayed in an enlarged manner. The operation of 150 will be explained.
When the page image 25-(N) of page N is displayed in an enlarged manner (step S6/YES), the control unit 150 determines that the operation direction of the swipe operation input in step S5 is upward on the touch panel 131 or It is determined whether the operation is downward (step S14).

If the operating direction of the swipe operation is not an upward or downward operation of the touch panel 131 (step S14/NO), the control unit 150 does not accept the swipe operation input in step S5 (step S16), The process moves to the determination in step S10 shown in step S13.

Further, if the direction of the swipe operation is an upward or downward operation on the touch panel 131 (step S14/YES), the control unit 150 vertically scrolls the page image 25-(N) of page N ( Step S15). The control unit 150 scrolls the page image 25-(N) of page N in the upward or downward direction, which is the operating direction of the swipe operation.

After that, the control unit 150 determines whether the amount of the swipe operation is equal to or greater than the operation threshold (step S17). When the amount of swipe operation increases, first, the page image 25-(N) of page N and the page image 25-(N-1) or (N+1) of page N-1 or N+1 are displayed in the second display area 223. , a part of is displayed. After that, if the operation amount of the swipe operation is less than the operation threshold and the swipe operation is no longer detected (step S17/NO), the control unit 150 displays the page image 25-(N) of page N that was originally displayed. is displayed in the second display area 223 (step S19).

Further, when the operation amount of the swipe operation becomes equal to or greater than the operation threshold (step S17/YES), the control unit 150 sets the page image 25-(N-1) or (N+1) of page N-1 or N+1 to the second page image 25-(N-1) or (N+1). It is displayed in the display area 223 (step S18). When the operating direction of the swipe operation is upward, the control unit 150 displays the N+1 page image 25-(N+1) in the second display area 223. Furthermore, when the swipe operation direction is downward, the control unit 150 causes the N-1 page image 25-(N-1) to be displayed in the second display area 223.
At this time, when displaying the N-1 page or N+1 page image 25-(N-1) or (N+1) in the second display area 223, the control unit 150 controls whether the page image 25-(N-1) or (N+1) is displayed before the swipe operation is input. The page image 25-(N) of page N is displayed at the same magnification as that of page image 25-(N). After that, the control unit 150 returns to the determination in step S10.

Next, the operation of the display device 100 when the touch panel 131 is in the horizontal screen display state will be described with reference to the flowcharts shown in FIGS. 15 and 16.
If the determination in step S3 is negative (step S3/NO) and the touch panel 131 is in the horizontal screen display state, the control unit 150 determines whether the two-page spread display setting is enabled ( Step S20).

If the two-page spread display setting is not enabled (step S20/NO), the control unit 150 causes the page image 25-(N) of page N to be displayed in the second display area 223.
Further, if the two-page spread display setting is enabled (step S20/YES), the control unit 150 causes the page images 25-(N, N+1) of page N and page N+1 to be displayed in the second display area 223. (Step S21).

The subsequent operations of step S23 to step S31 of the control unit 150 are the same as steps S5 to S13 shown in FIG. 13, so a description thereof will be omitted.
Note that when the page images 25-(N, N+1) of the N page and the N+1 page are displayed in step S21, the page images 25-(N, N+1) of the N page and the N+1 page are horizontally scrolled in the step S27.
Furthermore, when the page image 25-(N) of page N is displayed in step S22, the page image 25-(N) of page N is horizontally scrolled in step S27.

Next, the operation when a swipe operation is input in step S23 of FIG. 15 and the display magnification is determined to be larger than the display threshold in step S24 will be described with reference to the flowchart of FIG. 16.
If the control unit 150 determines that the display magnification is larger than the display threshold (step S24/YES), the control unit 150 determines whether the direction of the swipe operation received in step S23 is an upward or downward operation on the touch panel 131. It is determined whether or not (step S32).

If the operating direction of the swipe operation is not an upward or downward operation of the touch panel 131 (step S32/NO), the control unit 150 does not accept the swipe operation input in step S5 (step S34), The process moves to the determination in step S28 shown in FIG.

Further, when the direction of the swipe operation is an upward or downward operation of the touch panel 131 (step S32/YES), the control unit 150 vertically scrolls the page image 25 (step S33). When the control unit 150 displays the page images 25-(N, N+1) of the N page and the N+1 page in step S21, the control unit 150 displays the page images 25-(N, N+1) of the N page and the N+1 page vertically in the step S33. Make it scroll.
Further, when the page image 25-(N) of page N is displayed in step S22, the page image 25-(N) of page N is vertically scrolled in step S27.

After that, the control unit 150 determines whether the operation amount of the swipe operation is equal to or greater than the operation threshold (step S35). When the page images 25-(N, N+1) of page N and page N+1 are displayed in step S21 due to an increase in the amount of operation of the swipe operation, the page images 25-(N, N, N+1) and a part of page image 25-(N+2, N+3) of page N+2 and page N+3, or page image 25-(N-2, N-1) of page N-2 and page N-1. It is displayed in the second display area 223.
When the page image 25-(N) of page N is displayed in step S21, the page image 25-(N) of page N, the page image 25-(N+1) of page N+1, and the page image 25-(N-1) of page N-1 are displayed by the swipe operation. A portion of the page image 25-(N-1) is displayed in the second display area 223.

After that, if the operation amount of the swipe operation is less than the operation threshold and the swipe operation is no longer detected (step S35/NO), the control unit 150 sets the display state of the second display area 223 to the two-page spread display state. It is determined whether or not (step S39). If the display state of the second display area 223 is not a two-page spread display state (step S39/NO), the control unit 150 causes the page image 25-(N) of page N to be displayed in the second display area 223 (step S40). ). Further, if the display state of the second display area 223 is a spread display state (step S39/YES), the control unit 150 displays the page images 25-(N, N+1) of the N page and the N+1 page in the second display area 223. (Step S41).

Further, if the control unit 150 determines in step S35 that the operation amount of the swipe operation is equal to or greater than the operation threshold (step S35/YES), the display state of the second display area 223 is a double-page spread display state. It is determined whether or not (step S36).

If the display state of the second display area 223 is not a two-page spread display state (step S36/NO), the control unit 150 displays the page image 25-(N-1) of page N-1 or the page image 25 of page N+1. -(N+1) is displayed in the second display area 223 (step S37).
Further, when the display state of the second display area 223 is a two-page spread display state (step S36/YES), the control unit 150 controls the page images 25-(N-2,N-1) of the N-2 page and the N-1 page. -1) or page images 25-(N+2, N+3) of pages N+2 and N+3 are displayed in the second display area 223 (step S38).

[4. Summary of this disclosure]
A summary of the present disclosure is appended below.
(Additional note 1)
A display section;
a detection unit that detects an operation on the display surface of the display unit;
The image of page N and the image of page N+1 or page N-1 of the file are enlarged at a predetermined display magnification, and a portion of the image of page N and the image of page N+1 or page N-1 is enlarged. In a state in which a display screen displaying the is enlarged and displayed on the display surface,
If the operation detected by the detection unit does not satisfy a preset condition, displaying the display screen that displays the image of the N page on the display unit;
a control unit that causes the display unit to display the display screen that displays the image of the N+1 page or the N-1 page when the operation satisfies the condition;
A display device comprising:

According to this configuration, an operation that does not satisfy the preset conditions is input in an enlarged display state in which a display screen that displays a part of the image of page N and the image of page N+1 or page N-1 is displayed. By doing so, a display screen that displays images of page N can be displayed, and by inputting an operation that satisfies preset conditions, a display screen that displays images of page N+1 or page N-1 can be displayed. can be displayed. Therefore, operability and user convenience can be improved.

(Additional note 2)
The control unit includes:
when the operating direction of the operation is a first direction, displaying the display screen that displays a part of the image of the N page and the image of the N+1 page in the enlarged display state;
If the amount of operation in the first direction of the operation is less than a preset threshold, determining that the condition is not satisfied and displaying the display screen that displays the images of the N page;
If the amount of operation in the first direction of the operation is equal to or greater than the threshold value, determining that the condition is satisfied and displaying the display screen displaying the image of the N+1 page on the display unit;
The display device described in Supplementary Note 1.

According to this configuration, by changing the operation amount of the operation in the first direction in the enlarged display state where the display screen displaying part of the image of page N and the image of page N+1 is displayed, N It is possible to display a display screen that displays an image of a page, or a display screen that displays an image of page N+1. Therefore, operability and user convenience can be improved.

(Additional note 3)
The control unit includes:
When the operation direction of the operation is a second direction opposite to the first direction, in the enlarged display state, the image of the N page and a part of the image of the N-1 page are displayed. displaying a display screen on the display section;
If the amount of operation in the second direction of the operation is less than a preset threshold, it is determined that the condition is not satisfied, and the display screen displaying the image of the N page is displayed on the display unit. ,
If the amount of operation in the second direction of the operation is equal to or greater than the threshold value, determining that the condition is satisfied and displaying the display screen displaying the image of the N-1 page on the display unit;
Display device according to supplementary note 2.

According to this configuration, in an enlarged display state where a display screen displaying a part of an image of page N and a part of an image of page N-1 is displayed, changing the amount of operation in the second direction , a display screen that displays images of page N, or a display screen that displays images of page N-1 can be displayed. Therefore, operability and user convenience can be improved.

(Additional note 4)
The control unit includes:
In a state where the image of the N page and a part of the image of the N+1 page or the N-1 page are enlarged and displayed on the display screen,
When the operation detected by the detection unit is a fling operation, it is determined that the condition is satisfied, and the display screen displaying the image of the N+1 page or the N−1 page is displayed on the display unit, according to supplementary note 1. display device.

According to this configuration, by performing a fling operation in an enlarged display state in which a display screen displaying a part of an image of page N and a part of an image of page N+1 or page N-1 is displayed, page N+1 or page N-1 can be displayed. - A display screen that displays one page of images can be displayed. Therefore, operability and user convenience can be improved.

(Appendix 5)
The control unit includes:
When the operation detected by the detection unit satisfies the conditions and causes the display unit to display the display screen that displays the image of the N+1 page or the image of the N-1 page, the display magnification of the image of the N page and The display device according to any one of Supplementary Notes 1 to 4, wherein the display unit displays the display screen that displays the image of the N+1 page or the image of the N-1 page at the same magnification.

According to this configuration, the image of page N+1 or the image of page N-1 can be displayed at the same magnification as the display magnification of the image of page N.

(Appendix 6)
A display section;
a detection unit that detects an operation on the display surface of the display unit;
An image of the first page group that displays page N and N+1 of the file, and an image of the second page group that displays page N+2 and N+3, or a third page that displays page N-2 and N-1. the display screen that enlarges the images of the group at a predetermined display magnification and displays a portion of the images of the first page group and the images of the second page group or the images of the third page group; When the image is enlarged on the screen,
If the operation detected by the detection unit does not satisfy a preset condition, displaying the display screen that displays images of the first page group on the display unit;
a control unit that causes the display unit to display the display screen that displays images of the second page group or images of the third page group when the operation satisfies the conditions;
A display device comprising:

According to this configuration, in an enlarged display state in which a display screen that displays images of the first page group and a portion of images of the second page group or images of the third page group is displayed, the preset condition is set. By inputting an operation that does not satisfy the conditions, a display screen that displays images of the first page group can be displayed, and by inputting an operation that satisfies the preset conditions, images of the second page group can be displayed. Alternatively, a display screen that displays images of the third page group can be displayed. Therefore, operability and user convenience can be improved.

(Appendix 7)
The control unit includes:
When the operating direction of the operation is a first direction, the display screen that displays a portion of the images of the first page group and the images of the second page group is moved to the display unit in the enlarged display state. display it on
If the amount of operation in the first direction of the operation is less than a preset threshold, it is determined that the condition is not satisfied, and the display screen that displays the images of the first page group is set on the display unit. display,
If the amount of operation in the first direction of the operation is equal to or greater than the threshold value, determining that the condition is satisfied and displaying the display screen that displays images of the second page group on the display unit;
Display device according to appendix 6.

According to this configuration, the amount of operation in the first direction is changed in an enlarged display state in which a display screen displaying a part of images of the first page group and a part of images of the second page group is displayed. By doing so, it is possible to display a display screen that displays images of the first page group, or display a display screen that displays images of the second page group. Therefore, operability and user convenience can be improved.

(Appendix 8)
The control unit includes:
When the operation direction of the operation is a second direction opposite to the first direction, displaying a part of the images of the first page group and the images of the third page group in the enlarged display state. displaying the display screen on the display unit,
If the amount of operation in the second direction of the operation is less than a preset threshold, it is determined that the condition is not satisfied, and the display screen that displays the images of the first page group is set on the display unit. display,
If the amount of operation in the second direction of the operation is equal to or greater than the threshold value, determining that the condition is satisfied and displaying the display screen that displays images of the third page group on the display unit;
Display device according to appendix 6 or 7.

According to this configuration, the amount of operation in the second direction is changed in an enlarged display state in which a display screen displaying a part of images of the first page group and a part of images of the third page group is displayed. By doing so, it is possible to display a display screen that displays images of the first page group, or display a display screen that displays images of the third page group. Therefore, operability and user convenience can be improved.

(Appendix 9)
The control unit includes:
In a state where the display screen that displays the images of the first page group and a part of the images of the second page group or the images of the third page group is enlarged and displayed on the display surface,
When the operation detected by the detection unit is a fling operation, it is determined that the condition is satisfied, and the display screen displaying the image of the N+1 page or the third page group is displayed on the display unit, according to supplementary note 6. display device.

According to this configuration, the fling operation can be performed in an enlarged display state where the display screen that displays the images of the first page group and a part of the images of the second page group or the images of the third page group is displayed. Then, a display screen that displays images of the second page group or images of the third page group can be displayed. Therefore, operability and user convenience can be improved.

(Appendix 10)
The control unit includes:
When the operation detected by the detection unit satisfies the conditions and causes the display unit to display the display screen that displays the images of the second page group or the images of the third page group, the image of the first page group The display device according to appendix 6, wherein the display unit displays the images of the second page group or the images of the third page group at the same magnification as the display magnification of .

According to this configuration, the images of the second page group or the images of the third page group can be displayed at the same magnification as the display magnification of the images of the first page group.

(Appendix 11)
The control unit includes:
If the file includes more vertical pages than horizontal pages, the display screen for displaying the image of the N page, the image of the N+1 page, or the image of the N-1 page enlarged at a predetermined display magnification is set to The display device according to any one of Supplementary Notes 1 to 5, which is displayed on a display surface.

According to this configuration, when a file includes more vertical pages than horizontal pages, images of N pages included in the file can be enlarged and displayed at a predetermined display magnification. Therefore, visibility for the user can be improved.

(Appendix 12)
The control unit includes:
When the file includes more vertical pages than horizontal pages, images of the first page group, images of the second page group, or images of the third page group are enlarged and displayed at a predetermined display magnification. The display device according to any one of Supplementary Notes 6 to 10, wherein a display screen is displayed on the display surface.

According to this configuration, when a file includes more portrait pages than landscape pages, images of the first page group, images of the second page group, or images of the third page group included in the file are displayed at a predetermined display magnification. It can be enlarged and displayed. Therefore, visibility for the user can be improved.

(Appendix 13)
detecting an operation on the display surface of the display unit;
The image of page N and the image of page N+1 or page N-1 of the file are enlarged at a predetermined display magnification, and a portion of the image of page N and the image of page N+1 or page N-1 is enlarged. In a state in which a display screen displaying the is enlarged and displayed on the display surface,
If the operation detected in the detecting step does not satisfy a preset condition, displaying the display screen displaying the image of the N page on the display unit;
If the operation satisfies the condition, displaying the display screen that displays the image of the N+1 page or the N-1 page on the display unit;
A method for controlling a display device, comprising:

As a result, if you input an operation that does not meet the preset conditions in the enlarged display state where the display screen that displays the image of page N and a part of the image of page N+1 or page N-1 is displayed, , a display screen that displays images of page N can be displayed, and by inputting an operation that satisfies preset conditions, a display screen that displays images of page N+1 or page N-1 can be displayed. be able to. Therefore, operability and user convenience can be improved.

(Appendix 14)
detecting an operation on the display surface of the display unit;
An image of the first page group that displays page N and N+1 of the file, and an image of the second page group that displays page N+2 and N+3, or a third page that displays page N-2 and N-1. the display screen that enlarges the images of the group at a predetermined display magnification and displays a portion of the images of the first page group and the images of the second page group or the images of the third page group; When the image is enlarged on the screen,
If the operation detected in the detecting step does not satisfy a preset condition, displaying the display screen that displays images of the first page group on the display unit;
If the operation satisfies the conditions, displaying the display screen that displays the images of the second page group or the third page group on the display unit;
A method for controlling a display device, comprising:

As a result, in the enlarged display state where the display screen displaying the images of the first page group and a part of the images of the second page group or the images of the third page group, the preset conditions are not met. By inputting an operation, a display screen that displays images of the first page group can be displayed, and by inputting an operation that satisfies preset conditions, images of the second page group or the third page group can be displayed. A display screen can be displayed that displays images of the page group. Therefore, operability and user convenience can be improved.

(Appendix 15)
to the computer,
A procedure for detecting an operation on the display surface of the display unit,
The image of page N and the image of page N+1 or page N-1 of the file are enlarged at a predetermined display magnification, and a portion of the image of page N and the image of page N+1 or page N-1 is enlarged. In a state in which a display screen displaying the is enlarged and displayed on the display surface,
If the operation detected by the detecting procedure does not satisfy a preset condition, displaying the display screen that displays the image of the N page on the display unit;
If the operation satisfies the conditions, displaying the display screen that displays the image of the N+1 page or the N-1 page on the display unit;
A program to run.

As a result, if you input an operation that does not meet the preset conditions in the enlarged display state where the display screen that displays the image of page N and a part of the image of page N+1 or page N-1 is displayed, , a display screen that displays images of page N can be displayed, and by inputting an operation that satisfies preset conditions, a display screen that displays images of page N+1 or page N-1 can be displayed. be able to. Therefore, operability and user convenience can be improved.

(Appendix 16)
to the computer,
A procedure for detecting an operation on the display surface of the display unit,
An image of the first page group that displays page N and N+1 of the file, and an image of the second page group that displays page N+2 and N+3, or a third page that displays page N-2 and N-1. the display screen that enlarges the images of the group at a predetermined display magnification and displays a portion of the images of the first page group and the images of the second page group or the images of the third page group; When the image is enlarged on the screen,
If the operation detected by the detecting procedure does not satisfy a preset condition, displaying the display screen that displays images of the first page group on the display unit;
If the operation satisfies the conditions, displaying the display screen that displays the images of the second page group or the third page group on the display unit;
A program to run.

As a result, in the enlarged display state where the display screen displaying the images of the first page group and a part of the images of the second page group or the images of the third page group, the preset conditions are not met. By inputting an operation, a display screen that displays images of the first page group can be displayed, and by inputting an operation that satisfies preset conditions, images of the second page group or the third page group can be displayed. A display screen can be displayed that displays images of the page group. Therefore, operability and user convenience can be improved.

[5. Other forms]
The embodiments described above are preferred embodiments of the present invention. However, the embodiment is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the present invention.
For example, each functional unit of the display device 100 shown in FIG. 1 shows a functional configuration, and the specific implementation form is not particularly limited. In other words, it is not necessarily necessary to implement hardware corresponding to each functional unit individually, and it is of course possible to have a configuration in which one processor executes a program to realize the functions of a plurality of functional units. Moreover, some of the functions realized by software in the above embodiments may be realized by hardware, and some of the functions realized by hardware may be realized by software. In addition, the specific detailed configuration of each part of the display device 100 can be changed arbitrarily without departing from the spirit of the present invention.

Furthermore, the display device 100 may be a notebook or desktop personal computer in which the display unit 130 does not include a touch panel. In this case, the user can operate the display unit 130 using, for example, a mouse, and the operations detected by the detection unit 173 include a click operation, a drag and drop operation, a wheel rotation operation, a wheel click operation, etc. It will be done. More specifically, for example, a vertical swipe operation on the touch panel 131 corresponds to a vertical mouse movement operation after a wheel click, and a horizontal swipe operation on the touch panel 131 corresponds to a vertical mouse movement operation after a wheel click. It is sufficient to support drag and drop operations. Further, for example, a wheel rotation operation may be made to correspond to a fling operation in the up and down direction on the touch panel 131, and a left click operation and a right click operation may be made to correspond to a fling operation in the left and right direction on the touch panel 131. .

Furthermore, processing units in the flowcharts shown in FIGS. 13 to 16 are divided according to main processing contents in order to facilitate understanding of the processing of the display device 100. The present invention is not limited by the division method or names of processing units shown in the flowcharts of FIGS. 13 to 16. Further, the processing of the control unit 150 can be divided into more processing units depending on the processing content, or can be divided so that one processing unit includes even more processing. Furthermore, the processing order in the above flowchart is not limited to the illustrated example.

Furthermore, when the display device control method is implemented using a computer included in the display device 100 and a computer included in the display device 100, it is also possible to configure a program to be executed by these computers in the form of a recording medium. be. Alternatively, it is also possible to configure it in the form of a transmission medium that transmits a program to be executed by these computers. A magnetic or optical recording medium or a semiconductor memory device can be used as the recording medium. Specifically, portable or fixed types such as flexible disks, HDDs (Hard Disk Drives), CD-ROMs, DVDs (Digital Versatile Discs), Blu-ray Discs, magneto-optical disks, flash memories, card-type recording media, etc. Examples include recording media. Further, the recording medium may be a nonvolatile storage device such as a RAM, ROM, or HDD, which is an internal storage device included in the server device. Blu-ray is a registered trademark.

11...Home button, 13...Back button, 20...App screen, 20A...List screen, 20B...Browsing screen (display screen), 21, 21A, 21B, 21C, 21N...First thumbnail image bundle, 23, 23A, 23B , 23C, 23N...Main thumbnail image, 25, 25B, 25N...Page image, 25-(N,N+1)...Image of first page group, 25-(N+2,N+3)...Image of second page group, 25- (N-2, N-1)...Image of third page group, 100...Display device, 110...Wireless communication unit, 130...Display unit, 131...Touch panel, 150...Control unit, 160...Storage unit, 161...OS , 163... Application, 165, 165A, 165B, 165C, 165N... Document file, 167... Setting file, 170... Processor, 171... Thumbnail image bundle generation section, 173... Detection section, 211, 211B, 211N... First thumbnail image , 221...first display area, 221L...left area, 221R...right area, 223...second display area.

Claims (16)

A display section;
a detection unit that detects an operation on the display surface of the display unit;
The image of page N and the image of page N+1 or page N-1 of the file are enlarged at a predetermined display magnification, and a portion of the image of page N and the image of page N+1 or page N-1 is enlarged. In a state in which a display screen displaying the is enlarged and displayed on the display surface,
If the operation detected by the detection unit does not satisfy a preset condition, displaying the display screen that displays the image of the N page on the display unit;
a control unit that causes the display unit to display the display screen that displays the image of the N+1 page or the N-1 page when the operation satisfies the condition;
A display device comprising: The control unit includes:
when the operation direction of the operation is a first direction, displaying the display screen that displays a part of the image of the N page and the image of the N+1 page on the display unit in the state of the enlarged display;
If the amount of operation in the first direction of the operation is less than a preset threshold, it is determined that the condition is not satisfied, and the display screen displaying the image of the N page is displayed on the display unit. ,
If the amount of operation in the first direction of the operation is equal to or greater than the threshold value, determining that the condition is satisfied and displaying the display screen displaying the image of the N+1 page on the display unit;
The display device according to claim 1. The control unit includes:
When the operation direction of the operation is a second direction opposite to the first direction, in the enlarged display state, the image of the N page and a part of the image of the N-1 page are displayed. displaying a display screen on the display unit;
If the amount of operation in the second direction of the operation is less than a preset threshold, it is determined that the condition is not satisfied, and the display screen displaying the image of the N page is displayed on the display unit. ,
If the amount of operation in the second direction of the operation is equal to or greater than the threshold value, determining that the condition is satisfied and displaying the display screen displaying the image of the N-1 page on the display unit;
The display device according to claim 2. The control unit includes:
In a state where the image of the N page and a part of the image of the N+1 page or the N-1 page are enlarged and displayed on the display screen,
If the operation detected by the detection unit is a fling operation, it is determined that the condition is satisfied, and the display screen displaying the image of the N+1 page or the N−1 page is displayed on the display unit. Display device as described. The control unit includes:
When the operation detected by the detection unit satisfies the conditions and causes the display unit to display the display screen that displays the image of the N+1 page or the image of the N-1 page, the display magnification of the image of the N page and The display device according to claim 1, wherein the display screen displays the image of the N+1 page or the image of the N-1 page at the same magnification on the display unit. A display section;
a detection unit that detects an operation on the display surface of the display unit;
An image of the first page group displaying page N and N+1 of the file, and an image of the second page group displaying page N+2 and N+3, or a third page displaying page N-2 and N-1. the display screen that enlarges the images of the group at a predetermined display magnification and displays a portion of the images of the first page group and the images of the second page group or the images of the third page group; When the image is enlarged on the screen,
If the operation detected by the detection unit does not satisfy a preset condition, displaying the display screen that displays images of the first page group on the display unit;
a control unit that causes the display unit to display the display screen that displays images of the second page group or images of the third page group when the operation satisfies the conditions;
A display device comprising: The control unit includes:
When the operating direction of the operation is a first direction, the display screen that displays a portion of the images of the first page group and the images of the second page group is moved to the display unit in the enlarged display state. display it on
If the amount of operation in the first direction of the operation is less than a preset threshold, it is determined that the condition is not satisfied, and the display screen that displays the images of the first page group is set on the display unit. display,
If the amount of operation in the first direction of the operation is equal to or greater than the threshold value, determining that the condition is satisfied and displaying the display screen that displays images of the second page group on the display unit;
The display device according to claim 6. The control unit includes:
If the operation direction of the operation is a second direction opposite to the first direction, displaying a part of the images of the first page group and the images of the third page group in the enlarged display state. Displaying the display screen on the display unit,
If the amount of operation in the second direction of the operation is less than a preset threshold, it is determined that the condition is not satisfied, and the display screen that displays the images of the first page group is set on the display unit. display,
If the amount of operation in the second direction of the operation is equal to or greater than the threshold value, determining that the condition is satisfied and displaying the display screen that displays images of the third page group on the display unit;
The display device according to claim 6. The control unit includes:
In a state where the display screen that displays the images of the first page group and a part of the images of the second page group or the images of the third page group is enlarged and displayed on the display surface,
7. When the operation detected by the detection unit is a fling operation, it is determined that the condition is satisfied, and the display screen displaying the image of the N+1 page or the third page group is displayed on the display unit. Display device as described. The control unit includes:
When the operation detected by the detection unit satisfies the conditions and causes the display unit to display the display screen that displays the images of the second page group or the images of the third page group, the image of the first page group 7. The display device according to claim 6, wherein the image of the second page group or the image of the third page group is displayed on the display unit at the same magnification as the display magnification of . The control unit includes:
If the file includes more vertical pages than horizontal pages, the display screen for displaying the image of the N page, the image of the N+1 page, or the image of the N-1 page enlarged at a predetermined display magnification is set to The display device according to any one of claims 1 to 5, which is displayed on a display surface. The control unit includes:
When the file includes more vertical pages than horizontal pages, images of the first page group, images of the second page group, or images of the third page group are enlarged and displayed at a predetermined display magnification. The display device according to claim 6 , wherein a display screen is displayed on the display surface. detecting an operation on the display surface of the display unit;
The image of page N and the image of page N+1 or page N-1 of the file are enlarged at a predetermined display magnification, and a portion of the image of page N and the image of page N+1 or page N-1 is enlarged. In a state in which a display screen displaying the is enlarged and displayed on the display surface,
If the operation detected in the detecting step does not satisfy a preset condition, displaying the display screen displaying the image of the N page on the display unit;
If the operation satisfies the condition, displaying the display screen that displays the image of the N+1 page or the N-1 page on the display unit;
A method for controlling a display device, comprising: detecting an operation on the display surface of the display unit;
An image of the first page group that displays page N and N+1 of the file, and an image of the second page group that displays page N+2 and N+3, or a third page that displays page N-2 and N-1. the display screen that enlarges the images of the group at a predetermined display magnification and displays a portion of the images of the first page group and the images of the second page group or the images of the third page group; When the image is enlarged on the screen,
If the operation detected in the detecting step does not satisfy a preset condition, displaying the display screen that displays images of the first page group on the display unit;
If the operation satisfies the conditions, displaying the display screen that displays the images of the second page group or the third page group on the display unit;
A method for controlling a display device, comprising: to the computer,
A procedure for detecting an operation on the display surface of the display unit,
The image of page N and the image of page N+1 or page N-1 of the file are enlarged at a predetermined display magnification, and a portion of the image of page N and the image of page N+1 or page N-1 is enlarged. In a state in which a display screen displaying the is enlarged and displayed on the display surface,
If the operation detected by the detecting procedure does not satisfy a preset condition, displaying the display screen that displays the image of the N page on the display unit;
If the operation satisfies the conditions, displaying the display screen that displays the image of the N+1 page or the N-1 page on the display unit;
A program to run. to the computer,
A procedure for detecting an operation on the display surface of the display unit,
An image of the first page group that displays page N and N+1 of the file, and an image of the second page group that displays page N+2 and N+3, or a third page that displays page N-2 and N-1. the display screen that enlarges the images of the group at a predetermined display magnification and displays a portion of the images of the first page group and the images of the second page group or the images of the third page group; When the image is enlarged on the screen,
If the operation detected by the detecting procedure does not satisfy a preset condition, displaying the display screen that displays images of the first page group on the display unit;
If the operation satisfies the conditions, displaying the display screen that displays the images of the second page group or the third page group on the display unit;
A program to run.

Images