US20170115861A1

Movatterモバイル変換

Info

Publication number: US20170115861A1
Application number: US15/398,382
Authority: US
Inventors: Makiko TSUTSUI; Hideaki Watanabe
Original assignee: Fujitsu Ltd
Current assignee: Fujitsu Connected Technologies Ltd
Priority date: 2008-09-16
Filing date: 2017-01-04
Publication date: 2017-04-27
Also published as: JP2010072754A; US9570045B2; US20100070915A1; JP5596914B2

Abstract

A terminal apparatus includes a display, a display control unit configured to display a screen on the display in a given display mode, a first selection operation detection unit configured to detect that a first selection operation concerning the given display mode has been performed in a given area of the screen, and a second selection operation detection unit configured to detect that a second selection operation concerning given processing has been performed in the given area of the screen. The display control unit displays a screen by changing to a second display mode based on detection of the first selection operation in the screen displayed in a first display mode, performs the given processing based on detection of the second selection operation, and performs display control processing for displaying a screen in the first display mode after the given processing.

Description

CROSS-REFERENCE TO RELATED APPLICATION

This application is a continuation of application Ser. No. 12/558,684, filed Sep. 14, 2009, which is based upon and claims the benefit of priority of the prior Japanese Patent Application No. 2008-237106, filed on Sep. 16, 2008, the entire contents of which are incorporated herein by reference.

FIELD

Embodiments of the present invention relate to a technology to control a display mode of a screen displayed on a display of a terminal apparatus.

BACKGROUND

In a mobile terminal apparatus such as a mobile phone and PDA (Personal Digital Assistants), the display is increasingly becoming smaller in recent years due to miniaturization, leading to a limited display area. Also in a terminal apparatus other than a mobile terminal apparatus such as a PC (Personal Computer), for displaying as much information as possible by, for example, arranging a plurality of windows on the display, each window may become smaller, leading to a limited display area for each window. When a screen is displayed in such a display area, display sizes of characters and images in the screen become smaller if the whole screen is made a display area so that the screen may be viewed more easily. If the display size becomes smaller, it becomes more difficult to select and operate a button, icon, hyper-link and the like arranged in the screen. Particularly when a touch panel is used as the display and a user performs a selection operation on the touch panel using a finger, it is difficult to finely specify the position.

Further, a mobile phone generally has a Web browser to view Web sites created for PCs mounted therein. In the Web browser, for example, a screen of a Web site created by assuming a mouse operation on a PC is displayed in a display area of the mobile phone. Thus, when a screen created with a layout by assuming a different display area is displayed, hyperlinks and the like in the screen are frequently positioned or have a display size inappropriate for selection operation.

In response to such a problem, an apparatus that enables the user to change the display scaling factor of the screen so that the user may perform a selection operation after the screen is displayed by being scaled up is proposed (see, for example, Japanese Patent Application Laid-Open No. 2001-242981). In a flat coordinate input apparatus according toPatent Document 1, a tap operation and input coordinates thereof are detected through a flat coordinate input means. Then, the vicinity of the display position corresponding to the input coordinates is displayed by being scaled up in response to an odd tap operation and displayed by being scaled down to return to the original display scaling factor in response to an even tap operation.

However, the above apparatus is caused to change the display mode simply by the display scaling factor being successively specified through a tap operation. In contrast, for example, when a Web site is viewed via the Web browser of a mobile phone, screen transitions frequently occur because the user follows hyperlinks and the like. If the display scaling factor appropriate for selection operation and that appropriate for viewing are successively specified, there is a problem that operations become complicated and user convenience is reduced. This problem may also arise in devices other than the mobile phone.

SUMMARY

According to an aspect of the embodiments discussed herein, a terminal apparatus includes a display, a display control unit configured to perform display control processing for displaying a screen on the display in a given display mode, a first selection operation detection unit configured to detect that a first selection operation concerning the given display mode has been performed in a given area of the screen, and a second selection operation detection unit configured to detect that a second selection operation concerning given processing has been performed in the given area of the screen. The display control unit performs display control processing for displaying a screen by changing to a second display mode based on detection of the first selection operation in the screen displayed in a first display mode, performs the given processing based on detection of the second selection operation, and performs display control processing for displaying a screen in the first display mode after the given processing.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the embodiments, as claimed.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is an external view illustrating a display of a mobile phone according to a first embodiment of a disclosed terminal apparatus;

FIG. 2 is a functional block diagram illustrating a configuration of the mobile phone inFIG. 1;

FIG. 3 is a flowchart illustrating display control processing in the mobile phone inFIG. 1;

FIG. 4 is a diagram exemplifying a display mode of a screen of the mobile phone inFIG. 1;

FIG. 5 is a flowchart illustrating display control processing of the mobile phone according to a second embodiment of the disclosed terminal apparatus; and

FIG. 6 is a diagram exemplifying the display mode of the screen of the mobile phone inFIG. 5.

DESCRIPTION OF EMBODIMENTSFirst Embodiment

The first embodiment of the disclosed terminal apparatus and display control method will be described with reference toFIG. 1 toFIG. 4. Amobile phone1, which is an embodiment of the disclosed terminal apparatus, has a phone function, a mail transmission/reception function, and a browser function that displays a site on the Internet in a screen by radio communication with an external center. Themobile phone1 has, as a browser function, a Web browser that displays Web pages of Web sites created for PCs other than sites created for mobile phones (seeFIG. 4 described below).

As illustrated inFIG. 1, themobile phone1 has adisplay2, akeypad3, anantenna4, anearpiece5, and amouthpiece6 arranged therein; and aspeaker7 is arranged inside theearpiece5, and amicrophone8 is arranged inside themouthpiece6. Thekeypad3 has, for example, as a plurality of key switches for input, a menu key, scroll key, power key, start key, clear key, cursor key, character keys and the like arranged therein.

Thedisplay2 has both a display function and an input function and, for example, an LCD (Liquid Crystal Display) integrated touch panel may be used as thedisplay2. Thedisplay2 is used to present information and to display a cursor for selection operation. The touch panel of thedisplay2 is, for example, a pressure-sensitive or capacitance-type touch panel and accepts touch input (such as a tap operation) by, for example, a finger of the user. ON/OFF of touch input and the position thereof are output as input information. In addition to input by a finger, touch input using an input means such as a stylus may also be possible. However, it is inconvenient to carry an input means such as a stylus together with a mobile terminal apparatus such as a mobile phone and thus user convenience is enhanced by enabling touch input by a finger of the user.

When a Web browser is executed in themobile phone1, a Web page is displayed as a screen in thedisplay2 in the display scaling factor for viewing preset by the user. If a double tap operation is detected by the touch panel, the display scaling factor is changed to the temporary display scaling factor for selection operation and the screen of the Web page is redisplayed. If a hyperlink is selected in the screen of the touch panel, a Web page linked by the hyperlink is displayed in the screen of thedisplay2 in the display scaling factor for viewing. A hyperlink is location information (such as a URL) of another Web page or the like embedded in a Web page and the hyperlink is selected by a single tap operation being performed in an area where the hyperlink is set in the screen.

As illustrated inFIG. 2, themobile phone1 has an electronic unit including memories (anonvolatile memory11, awork memory12, and a ROM (Read Only Memory)13) and a CPU (Central Processing Unit) and has acontroller20 as functions thereof. Thedisplay2 and thekeypad3 are connected to thecontroller20. Further, thecontroller20 is connected to theantenna4, thespeaker7, and themicrophone8 via acommunication unit21. Thecommunication unit21 has a radio unit for transmitting and receiving a high-frequency signal and a signal processing unit for performing signal processing of sound and data to transmit and receive a signal to and from a center by radio.

Registered data such as phone numbers and mail addresses, data of transmitted and received mail, and setting data used for various functions of themobile phone1 are stored in thenonvolatile memory11. As setting data, candidate values of setting data that may be used in themobile phone1 specified as hardware and setting values (if not selected, default values) selected by the user from the candidate values of setting data are stored. Setting data includes display parameters when a Web page is displayed in the screen of thedisplay2. Display parameters include a display scaling factor A, display reference position C, display area size, and character size.

Regarding the display scaling factor, for example, n (n=1, 2 . . . ) display scaling factors A1 to An are stored as candidate values that may be used in themobile phone1. Then, when a display scaling factor setting function is selected from a menu screen of themobile phone1 by the user, a display scaling factor setting screen is displayed in thedisplay2 and the candidate values A1 to An of the display scaling factor are selectably presented. The display scaling factor selected from the candidate values A1 to An by the user is stored in thenonvolatile memory11 as the set display scaling factor A.

Temporary data for performing processing by thecontroller20 is stored in thework memory12. When, for example, a Web browser is executed, page data of a Web page acquired via the Internet, input information of the touch panel, a screen to be displayed created by rendering a Web page using the display parameters, or the display parameters currently being used (such as a display scaling factor X and a display reference position Y) are temporarily stored. As described below, the display scaling factor A stored in thenonvolatile memory11 or a temporary display scaling factor B specified by the user is set as the display scaling factor X.

Thecontroller20 performs various kinds of processing such as call control, mail transmission and reception control, and Web browser execution and has adata control unit25 and aninput control unit26 as functions thereof. Thedata control unit25 performs write and read operations of registered data, mail data, and setting data to and from thenonvolatile memory11. When a key switch of thekeypad3 is operated by being pressed, theinput control unit26 accepts the operation input and performs processing accordingly.

Further, thecontroller20 has adisplay control unit27 that creates a screen to be displayed in thedisplay2 and causes thedisplay2 to display the created screen. Thedisplay control unit27 creates a screen to be displayed in thedisplay2 by rendering data using display parameters stored in thenonvolatile memory11 or those specified by the user. For example, when the Web browser is executed, the display control unit creates a screen to be displayed by rendering page data of a Web page acquired through communication using the display scaling factor X.

Further, thecontroller20 has a function to detect the type of touch input operation based on input information from the touch panel. For example, thecontroller20 detects the type of operation (the single tap operation, double tap operation, and otherwise) from the duration and count of the ON state of a touch input. Thecontroller20 has a first selectionoperation detection unit28 that detects that a first selection operation concerning the display mode has been performed in a given area in the screen and a second selectionoperation detection unit29 that detects that a selection operation concerning given processing has been performed in a given area in the screen. In the present embodiment, the first selectionoperation detection unit28 detects that, when the screen of a Web page is displayed in thedisplay2 by the Web browser, a double tap operation is performed in an area excluding hyperlinks of the Web page on the touch panel of thedisplay2. The second selectionoperation detection unit29 detects that, when the screen of a Web page is displayed in thedisplay2 by the Web browser, a hyperlink of the Web page is selected (a single tap operation is performed in an area where a hyperlink is set) by a single tap operation on the touch panel of thedisplay2. The given processing corresponds to processing to acquire data of a Web page linked by a hyperlink through communication and to display the Web page in the screen.

Then, thedisplay control unit27 causes thedisplay2 to redisplay the screen by changing to a second display mode based on detection of a first selection operation in the screen displayed in first display mode. Thedisplay control unit27 performs the given processing based on detection of a second selection operation and causes thedisplay2 to display the screen after the processing in the first display mode.

Functions of thecontroller20 are realized by causing a CPU (corresponding to a computer used by a program having a disclosed display function) of themobile phone1 to execute programs stored in theROM13. The programs include the program having the disclosed display function.

FIG. 3 will be referenced. First atSTEP1, thecontroller20 reads the preset display scaling factor A from thenonvolatile memory11 and sets the display scaling factor A as the display scaling factor X.

Next, atSTEP2, thecontroller20 displays the acquired Web page in the screen of thedisplay2 in the scaling factor X (=A). Thecontroller20 creates a screen to be displayed by rendering page data of a Web page using the display scaling factor X and other display parameters stored in thenonvolatile memory11 and displays the created screen in thedisplay2. Accordingly, if, for example, 100[%] is set as the display scaling factor A, as illustrated inFIG. 4(a), the Web page is displayed in the LCD screen of thedisplay2 in the display scaling factor 100[%].

Next, atSTEP3, thecontroller20 determines whether any touch input has been done on the touch panel of thedisplay2 based on input information from the touch panel of thedisplay2. If the determination result atSTEP3 is NO,STEP3 is repeated until the determination result atSTEP3 becomes YES, putting the touch panel into an input wait state.

If the determination result atSTEP3 is YES, thecontroller20 proceeds to STEP4 to determine the type of operation of touch input based on input information from the touch panel of thedisplay2. For example, the type of operation (whether a single tap operation, a double tap operation, or otherwise) is determined from the time during which the ON state continues and the number of times thereof. If, as a result of determination atSTEP3, the type of operation is determined to be neither single tap nor double tap, thecontroller20 returns to STEP3 to wait for input of the touch panel.

If, as a result of determination atSTEP4, the type of operation is determined to be a double tap operation, thecontroller20 proceeds to STEP5 to determine whether the currently set display scaling factor X is A≦X<200[%]. If the determination result atSTEP5 is YES, thecontroller20 proceeds to STEP6 to set the display scaling factor X to 200[%] before returning toSTEP2. Accordingly, the Web page will be displayed by being scaled up in the display scaling factor of 200[%], making a selection operation easier.

If the determination result atSTEP5 is NO, thecontroller20 proceeds to STEP7 to determine whether the currently set display scaling factor X is 200[%]≦X<400[%]. If the determination result atSTEP7 is YES, thecontroller20 proceeds to STEP8 to set the display scaling factor X to 400[%] before returning toSTEP2. Accordingly, the Web page will be displayed by being scaled up in the display scaling factor of 400[%], making a selection operation easier.

If the determination result atSTEP7 is NO, thecontroller20 proceeds to STEP9 to set A to the display scaling factor X before returning toSTEP2.

With the processing atSTEPS5 to9 described above, (1) if the display scaling factor A is A<200[%],

the display scaling factor X is sequentially changed such that “A→200[%]→400[%]→A . . . ” each time a double tap operation is performed. (2) If the display scaling factor A is 200[%]≦A<400[%],

the display scaling factor X is sequentially changed such that “A→400[%]→A . . . ” each time a double tap operation is performed. (3) If the display scaling factor A is 400[%],

even if a double tap operation is detected, the display scaling factor remains unchanged: “400[%]→400[%] . . . ”.

Accordingly, the display scaling factor X, which is equal to or larger than the display scaling factor A set by the user, is set for scaled-up displaying within a range specified as hardware.

On the other hand, if, as a result of determination atSTEP4, the type of operation is determined to be a single tap operation, thecontroller20 proceeds to STEP10 to determine whether a hyperlink in the screen is selected by the single tap operation. That is, thecontroller20 determines whether the input position of the single tap operation is included in an area where the hyperlink is set in the screen. If the determination result atSTEP10 is NO, thecontroller20 returns to STEP3 to wait for input of the touch panel.

If the determination result atSTEP10 is YES, thecontroller20 proceeds to STEP11 to acquire page data of a Web page linked by the hyperlink. Next, thecontroller20 sets the display scaling factor X to A before returning toSTEP2.

Then, atSTEP2, thecontroller20 displays the Web page linked by the hyperlink in the display scaling factor A. Accordingly, when a transition to another Web page occurs by selecting a hyperlink, the screen of the Web page after the transition is displayed in the display scaling factor A preset for viewing by the user. Thus, the screen may be viewed swiftly to grasp the content thereof without performing any other operation. For example, in the example illustrated inFIGS. 4(a) to 4(c), regardless of whether the display scaling factor X when a hyperlink is selected is 100[%], 200[%], or 400[%], the screen of the Web page after the transition is displayed in the display scaling factor 100[%] preset for viewing by the user.

The above is the display control processing performed by themobile phone1 in the present embodiment.

STEPS

3 and4 correspond to processing by the first selectionoperation detection unit28, STEPS3,4, and10 correspond to processing by the second selectionoperation detection unit29, and STEPS1,2,5 to9,11, and12 correspond to processing by thedisplay control unit27.

According to the present embodiment, as described above, even if the display area of thedisplay2 is small, a selection operation of a hyperlink or the like in the screen may be performed easily and also the screen may be viewed swiftly.

While the temporary display scaling factor for selection operation is assumed to be two stages in the present embodiment, any number of stages may be set such as one stage or three or more stages.

While it is assumed in the present embodiment that the first selection operation is performed outside an area including a hyperlink, the first selection operation may be performed, for example, in an area including a hyperlink.

While it is assumed in the present embodiment that processing to cause a transition of the screen to a Web page linked to a hyperlink selected by the second selection operation is performed as a given processing, this may be applied when another processing is performed. For example, the given processing may be to display a detail screen of a menu selected by the second selection operation in the menu screen of themobile phone1.

Second Embodiment

Next, the second embodiment of the disclosed terminal apparatus and display control method will be described with reference toFIG. 5 andFIG. 6. The functional block diagram of a mobile phone in the present embodiment is the same as that in the first embodiment illustrated inFIG. 2 and the present embodiment is different from the first embodiment in processing (instead of the display scaling factor, the display position is changed as the display mode) by thecontroller20. In the description that follows, the same reference numerals are attached to the same components as those in the first embodiment and a description thereof is omitted. A mobile phone in the present embodiment has a mail creation function and a function to select a pictogram from a pictogram list screen and to insert the pictogram into a mail (seeFIG. 6 described below).

In the present embodiment, the first selectionoperation detection unit28 detects that a double tap operation is performed in an area surrounding a pictogram on the touch panel of thedisplay2 when the pictogram list screen is displayed in the screen of thedisplay2 during execution of a pictogram input function for creating a mail. The second selectionoperation detection unit29 detects that a pictogram is selected by a single tap operation (a single tap operation is performed in an area in which one of pictograms is displayed) on the touch panel of thedisplay2. The given processing corresponds to processing to input a selected pictogram into a mail being created.

Then, when a double tap operation is detected in the screen, thedisplay control unit27 adjusts the display position of the screen. Thedisplay control unit27 sets a preset display reference position C stored in thenonvolatile memory11 as a display reference position Y during execution of the pictogram input function for creating a mail. When a double tap operation is detected in the pictogram list screen displayed using the display reference position Y, thedisplay control unit27 sets, in the display reference position Y, a display reference position D in which the position in the screen corresponding to the input position of the double tap operation is the center of the display area of thedisplay2, generates a screen to be displayed using the display reference position Y, and displays the screen in thedisplay2.

Next, an operation of a mobile phone in the present embodiment will be described with reference to the flowchart inFIG. 5. It is assumed in the initial state that the mobile phone is turned on and the pictogram input function is activated when a mail is created. Also, an example of the display mode of the screen illustrated inFIG. 6 will be referenced below when appropriate. In the example inFIG. 6, the display reference position C of the screen is set in such a way that the lower left corner of the screen is at the lower left of the display area of thedisplay2.

FIG. 5 will be referenced. First atSTEP21, thecontroller20 reads the preset display reference position C from thenonvolatile memory11 and sets the display reference position C as the display reference position Y.

Next, at STEP22, thecontroller20 displays the pictogram list screen in the LCD screen of thedisplay2 using the display reference position Y. Accordingly, as illustrated inFIG. 6(a), the pictogram list screen is displayed using the lower left position as the reference position. At this point, due to, for example, too large a display scaling factor A preset by the user, the pictogram list screen may not stay in the display area and some pictograms, for example, the one at the upper right, are displayed only partially in a boundary portion of the display area of the screen.

Next, at STEP23, thecontroller20 determines whether any touch input has been done on the touch panel of thedisplay2 based on input information from the touch panel of thedisplay2. If the determination result at STEP23 is NO, STEP23 is repeated until the determination result at STEP23 becomes YES, putting the touch panel into an input wait state.

If the determination result at STEP23 is YES, thecontroller20 proceeds to STEP24 to determine the type of operation of touch input (whether a single tap operation, a double tap operation, or otherwise) based on input information from the touch panel of thedisplay2. If, as a result of determination at STEP23, the type of operation is determined to be neither single tap nor double tap, thecontroller20 returns to STEP23 to wait for input of the touch panel.

If, as a result of determination at STEP24, the type of operation is determined to be a double operation, thecontroller20 proceeds to STEP25 to set the display reference position D, in which the center of a pictogram closest to the input position of the double tap operation is the center of the display area of thedisplay2, as the display reference position Y before returning to STEP22.

Then, at STEP22, thecontroller20 redisplays the pictogram list screen using the reference position Y. Accordingly, as illustrated inFIG. 6(a), if a double tap operation is performed near a pictogram (for example, a pictogram at the upper right) only partially displayed in the boundary portion of the display area to select the pictogram, as illustrated inFIG. 6(b), the pictogram is moved to the center of the display area so that the entire pictogram is displayed.

Then, if the user performs a single tap operation and, as a result of determination at STEP24, the type of operation is determined to be a single tap operation, thecontroller20 proceeds to STEP26 to determine whether a pictogram in the screen is selected by the single tap operation. In this case, the display reference position Y is adjusted atSTEP25 by a double tap operation and, as illustrated inFIG. 6(b), a selection operation of the pictogram is made easier by a pictogram only partially displayed in the boundary portion of the display area being displayed in the center of the display area. If the determination result atSTEP26 is NO, thecontroller20 returns to STEP3 to wait for input of the touch panel. If the determination result atSTEP26 is YES, thecontroller20 proceeds to STEP27 to perform processing to input the selected pictogram.

AtSTEP28, thecontroller20 sets the display reference position Y as the preset display reference position C before returning to STEP22.

Then, at STEP22, thecontroller20 displays the pictogram list screen using the display reference position Y. Accordingly, the pictogram list screen is displayed in the normal display reference position C and thus, the user is familiar with the display position and may swiftly view the pictogram list screen. When the user inputs one pictogram after another, the user may swiftly know the position of the next pictogram to be input.

The above is the display control processing performed by a mobile phone in the present embodiment. STEPS23 and24 correspond to processing by the first selectionoperation detection unit28, STEPS23 to25 correspond to processing by the second selectionoperation detection unit29, and STEPS21,22,25 and28 correspond to processing by thedisplay control unit27.

According to the present embodiment, as described above, even if the display area of thedisplay2 is small, a selection operation of a pictogram or the like in the screen may be performed easily and also the screen may be viewed swiftly.

While the display scaling factor is adjusted as the display mode in the first embodiment and the display position is adjusted as the display mode in the second embodiment, for example, the display scaling factor, display position and other display parameters may be adjusted together.

Thedisplay2 is a touch panel in the first and second embodiments, but instead of assuming that thedisplay2 is a touch panel, the user may perform the first and second selection operations by moving the cursor displayed in the screen through key operations of the keypad.

A mobile phone is used as a terminal apparatus in the first and second embodiments, but a mobile terminal apparatus such as PDA or further, a terminal apparatus such as a PC may also be used.

According to the above terminal apparatus, display control method and program having the display function, even if the display area is small, a selection operation of a hyperlink or the like in the screen may be performed easily and also the screen may be viewed swiftly.

All examples and conditional language recited herein are intended for pedagogical purposes to aid the reader in understanding the invention and the concepts contributed by the inventor to furthering the art, and are to be construed as being without limitation to such specifically recited examples and conditions, nor does the organization of such examples in the specification relate to a illustrating of the superiority and inferiority of the invention. Although the embodiments of the present inventions have been described in detail, it should be understood that the various changes, substitutions, and alterations could be made hereto without departing from the spirit and scope of the invention.

Claims

What is claimed is:

1. An apparatus comprising:

a display;

a display control unit configured to perform display control processing for displaying pages on the display;

a first operation detection unit configured to detect that a first operation has been performed on a first page displayed on the display among the pages; and

a second operation detection unit configured to detect that a second operation has been performed on the first page,

wherein the display control unit performs display control processing for displaying the first page with a given scaling factor in a whole of a given area on the display,

performs display control processing for changing a scaling factor of the first page from the given scaling factor to a changed scaling factor in the whole of the given area without changing a size of the given area based on detection of the first operation, and

performs display control processing for displaying, after changing the scaling factor of the first page in the whole of the given area to the changed scaling factor in the whole of the given area, a second page among the pages with the given scaling factor in the whole of the given area based on detection of the second operation, the second page being related to the first page.

2. The apparatus according toclaim 1, wherein

the display control unit is capable of changing the scaling factor of the first page to any one of a plurality of given scaling factors, and

one of the plurality of given scaling factors is successively selected by consecutively performing the first operation.

3. The apparatus according toclaim 1, wherein

the first operation includes a double tap operation performed in an area of the first page.

4. The apparatus according toclaim 1, wherein

the display control unit performs the display control processing for changing the scaling factor of the first page so as to zoom in on the first page.

5. The apparatus according toclaim 1, wherein the display control unit performs the display control processing for displaying the second page at default size or in an overview.

6. A display control method for causing a display provided in an apparatus to display a plurality of pages, the display control method comprising:

first displaying a first page among the plurality of pages, by changing a scaling factor of the first page from a given scaling factor to a changed scaling factor in a whole of a given area of the display without changing a size of the given area after detecting that a first operation has been performed in an area of the first page displayed on the display; and

second displaying, when detecting a second operation to the first page for displaying a second page relating to the first page among the plurality of pages instead of the first page, after a scaling factor of the first page has been changed from the given scaling factor to the changed scaling factor in the whole of the given area in response to the first operation, the second page on the display so as to display the second page with the given scaling factor in the whole of the given area.

7. The display control method according toclaim 6, wherein

a touch panel is provided in the display, and

the first operation and the second operation are detected by using the touch panel.

8. The display control method according toclaim 6, wherein consecutively performing the first operation is capable of changing the scaling factor of the first page to any one of a plurality of given scaling factors and one of the plurality of given scaling factors.

9. The display control method according toclaim 6, wherein

10. The display control method according toclaim 6, wherein the changing changes the scaling factor of the first page so as to zoom in on the first page.

11. The display control method according toclaim 6, wherein the second displaying displays the second page at default size or in an overview.

12. A non-transitory computer readable storage medium that stores a program for causing a computer to perform a process for displaying a plurality of pages on a display, the process comprising:

first detecting that a first operation has been performed in an area of a first page displayed on the display among the plurality of pages;

changing a scaling factor of the first page from a given scaling factor to a changed scaling factor in a whole of a given area on the display without changing a size of the given area based on the first detecting;

second detecting that a second operation has been performed in an area of the first page after the changing; and

displaying a second page relating to the first page among the plurality of pages with the given scaling factor in the whole of the given area based on the second detecting.

13. The non-transitory computer readable storage medium according toclaim 12, wherein

14. The non-transitory computer readable storage medium according toclaim 12, wherein the changing changes the scaling factor of the first page so as to zoom in on the first page.

15. The non-transitory computer readable storage medium according toclaim 12, wherein the displaying displays the second page at default size or in an overview.

16. An apparatus comprising:

a memory; and

a processor configured to, by executing a program in the memory,

display a first page with a given scaling factor in a whole of a given area on a touch panel, the first page relating to a second page, and

display, when detecting a second operation to the first page for displaying a second page relating to the first page instead of the first page, after a scaling factor of the first page has been changed from the given scaling factor to a changed scaling factor in the whole of the given area without changing a size of the given area in response to a first operation for changing a scaling factor in the whole of the given area, the second page on the touch panel so as to display the second page with the given scaling factor in the whole of the given area.

17. The apparatus according toclaim 16, wherein

18. The apparatus according toclaim 16, wherein the processor is configured to change the scaling factor of the first page so as to zoom in based on the first operation.

19. The apparatus according toclaim 16, wherein the processor is configured to display the second page at default size or in an overview.

20. The apparatus according toclaim 16, further comprising the touch panel.