Abstract:
A control method executed by a computer having a display that has at least a first display region and a second display region, a plurality of icons being displayed at least in the second display region, includes changing a display surface area of a screen displayed in the first display region in a width direction parallel to an axis on which at least the plurality of icons are aligned, while the first display region maintains a state of abutting the second display region when a change instruction to change the display surface area of the first display region is received; and displaying the plurality of icons displayed in the second display region so as to be displayed inside the second display region which corresponds to the length in the width direction of the screen displayed in the first display region, in response to the change of the display surface area.

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
       [0001]    This application is based upon and claims the benefit of priority of the prior Japanese Patent Application No. 2015-175950, filed on Sep. 7, 2015, the entire contents of which are incorporated herein by reference. 
       FIELD 
       [0002]    The embodiments discussed herein relate to a control method, an information processor apparatus, and a storage medium. 
       BACKGROUND 
       [0003]    In recent years, there has been a wide variety of sizes of mobile terminals with touch panels and mobile terminals with large touch panels are very popular. While a user usually operates the large touch panel with both hands, the user may also want to temporarily operate the large touch panel with one hand while holding a bag in the other hand or while doing other work at the same time. During single hand operation, the mobile terminal is held and operated with the same hand and the user is not able to perform operations in areas that are not able to be reached with a finger. 
         [0004]    Accordingly, a technique is known for improving single hand operability by causing the entire screen to be subjected to parallel movement downwards for user interface components present in the longitudinal direction of the screen that is not able to be reached with a single hand. For example, Japanese Laid-open Patent Publication No. 2014-2756 is disclosed as related art. 
         [0005]    Operability is improved in the above technique by causing the screen to move downward. However, in the case of a right-handed user, for example, although the fingers of the user are able to reach the upper right of the screen, the fingers of the user are naturally unable to reach the upper left of the screen that is in the diagonally opposite corner from the hand holding the mobile terminal. Thus, there is still a region that is not able to be operated with a single hand on the screen of the mobile terminal and it would be difficult to say that operability is improved with this technique. 
       SUMMARY 
       [0006]    According to an aspect of the invention, a control method executed by a computer having a display that has at least a first display region and a second display region, wherein a plurality of icons are displayed at least in the second display region, the method includes changing a display surface area of a screen displayed in the first display region in a width direction parallel to an axis on which at least the plurality of icons are aligned, while the first display region maintains a state of abutting the second display region when a change instruction to change the display surface area of the first display region is received; and displaying the plurality of icons displayed in the second display region so as to be displayed inside the second display region which corresponds to the length in the width direction of the screen displayed in the first display region, in response to the change of the display surface area. 
         [0007]    The object and advantages of the invention will be realized and attained by means of the elements and combinations particularly pointed out in the claims. 
         [0008]    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 invention, as claimed. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0009]      FIG. 1  is a view for explaining an example of a screen transition on a smartphone according to a first embodiment; 
           [0010]      FIG. 2  is a view for explaining an example of a hardware configuration of the smartphone according to the first embodiment; 
           [0011]      FIG. 3  is a functional block diagram for explaining a functional configuration of the smartphone according to the first embodiment; 
           [0012]      FIG. 4  is a view for explaining a screen movement in the Y-axis direction; 
           [0013]      FIG. 5  is a view for explaining a screen movement in the X-axis direction; 
           [0014]      FIG. 6  is a view for explaining the rearrangement of icons; 
           [0015]      FIG. 7  is a flow chart of a processing flow; and 
           [0016]      FIG. 8  is a view for explaining an example of a screen transition during horizontal orientation. 
       
    
    
     DESCRIPTION OF EMBODIMENTS 
       [0017]    Embodiments of a display device, a display method, and a display program disclosed herein are described in detail with reference to the drawings. The present disclosure is not limited to the embodiments disclosed herein. 
       First Embodiment 
       [0018]      FIG. 1  is a view for explaining an example of a screen transition on a smartphone  10  according to a first embodiment. A smartphone  10  depicted in  FIG. 1  is an example of a display device having a touch panel for displaying a screen in a display region. While the smartphone  10  is discussed herein as an example, similar processing is possible for another display device such as a personal data assistant (PDA) or tablet having a touch panel. 
         [0019]    As illustrated in  FIG. 1 , the smartphone  10  has a touch panel for displaying a screen  10   a.  The screen  10   a  displayed on the touch panel has an application region  10   b  in which icons of various applications are displayed, and a navigation bar region  10   c  in which icons with a high usage frequency are displayed. Examples of icons with a high usage frequency include a communication icon for sending and receiving calls, an email icon for displaying an email screen, and a home icon for transitioning to a home screen. 
         [0020]    A parallel movement icon  10   d  for executing parallel movement of the screen displayed in the application region  10   b,  is displayed in the navigation bar region  10   c.  In the following description, a screen displayed in the application region  10   b  may be simply described as the application region  10   b,  and a screen displayed in the navigation bar region  10   c  may be simply described as the navigation bar region  10   c.    
         [0021]    The exemplary screen depicted in the left side in  FIG. 1  is, for example, a home screen which is displayed by an operating system and the like and which is a screen that includes user interface components and the like. The settings of the icons displayed in each region may be changed as desired. In the present embodiment, the Y axis is depicted as the longitudinal direction of the smartphone  10  and the X axis is depicted as the transverse direction of the smartphone  10  as an example. 
         [0022]    In this state, the smartphone  10  causes the screen to move in a predetermined direction along a first axis and a predetermined direction along a second axis in the display region  10   a  when a screen movement instruction is received. That is, the smartphone  10  executes movement along both the X and Y axes, that is, bi-axial movement, of the displayed screen. 
         [0023]    For example, the smartphone  10  causes parallel movement of the screen of the application region  10   b  in the longitudinal direction and in the transverse direction, as illustrated on the right side in  FIG. 1 , when the parallel movement icon  10   d  inside the navigation bar region  10   c  is selected. Moreover, the smartphone  10  rearranges the icons inside the navigation bar region  10   c  in accordance with the width in the transverse direction of the application region  10   b  as illustrated on the right side in  FIG. 1 . 
         [0024]    In doing so, the user interface of the icons and the like displayed in the upper left that is the diagonally opposite corner with regard to the hand holding the smartphone  10 , can be operated with the hand holding the smartphone  10 . That is, the operability can be improved. 
         [0025]      FIG. 2  is a view for explaining an example of a hardware configuration of the smartphone  10  according to the first embodiment. As illustrated in  FIG. 2 , the smartphone  10  includes a wireless unit  11 , an audio input/output unit  12 , a storage unit  13 , a touch sensor unit  14 , a display unit  15 , and a processor  20 . The hardware depicted here is merely an example and other hardware such as an acceleration sensor and the like may be included. 
         [0026]    The wireless unit  11  uses an antenna  11   a  to perform communication with another smartphone or a base station and the like. The audio input/output unit  12  is a device for executing inputs and outputs of sound and the like. The audio input/output unit  12 , for example, outputs various sounds from a speaker  12   a  and collects various sounds from a microphone  12   b.    
         [0027]    The storage unit  13  is a storage device for storing various types of data and programs. The storage unit  13  stores, for example, a program and/or a DB for executing the following processes. The touch sensor unit  14  and the display unit  15  operate together to realize a touch panel. The touch sensor unit  14  detects the contact of an indicating body such as a finger on the display unit  15 . The display unit  15  displays various types of information such as a screen and the like. 
         [0028]    The processor  20  is a processing unit for managing the processes of the entire smartphone  10 . The processor  20  may be a central processing unit (CPU) for example. For example, the processor  20  executes an operating system (OS). The processor  20  reads a program stored in the storage unit  13  such as a non-volatile memory, expands the program into a volatile memory, and executes a process for running the processes described below. 
         [0029]      FIG. 3  is a functional block diagram for explaining a functional configuration of the smartphone  10  according to the first embodiment. As illustrated in  FIG. 3 , the smartphone  10  includes a default value DB  13   a,  a previous value DB  13   b,  a request detecting unit  21 , a first movement unit  22 , and a second movement unit  25 . 
         [0030]    The default value DB  13   a  and the previous value DB  13   b  are databases stored in the storage unit  13 . The request detecting unit  21 , the first movement unit  22 , and the second movement unit  25  are examples of electronic circuits included in the processor  20  or examples of processes executed by the processor  20 . 
         [0031]    The default value DB  13   a  is a database for storing information of a previously set movement destination (default movement values) for a screen and that is a movement destination when executing bi-axial movement. Specifically, the default value DB  13   a  stores coordinates and the like indicating the position for causing the application region  10   b  to be moved downward (negative direction on the Y-axis) when the parallel movement icon  10   d  is selected. The default value DB  13   a  stores coordinates and the like that indicate the position for causing the application region  10   b  to be moved to the right (positive direction on the X-axis) or the position for causing the application region  10   b  to be moved to the left (negative direction on the X-axis). The default value DB  13   a  stores coordinates and the like that indicate a position that is rearranged accompanying the movement of the application region  10   b.    
         [0032]    The previous value DB  13   b  is a database for storing information of a movement destination for a screen designated by a user operation and that is a movement destination when executing bi-axial movement. Specifically, the previous value DB  13   b  stores coordinates and the like that indicate the previous position when the application region  10   b  has been moved downward. The default value DB  13   a  stores coordinates and the like that indicate the previous position when the application region  10   b  has been moved to the right or the previous position when the application region  10   b  has been moved to the left. The previous value DB  13   b  stores coordinates and the like indicating the position of an icon inside the navigation bar region  10   c  that has been rearranged accompanying the movement of the application region  10   b.    
         [0033]    The request detecting unit  21  is a processing unit for receiving requests for executing bi-axial movement of the screen or requests for returning the screen to the original position after the bi-axial movement. Specifically, the request detecting unit  21  outputs a movement instruction in the Y-axis direction when the selection of the parallel movement icon  10   d  is received on the touch panel to the first movement unit  22 . The request detecting unit  21  cancels the bi-axial movement and returns the icons inside the application region  10   b  and the navigation bar region  10   c  to the original state when the parallel movement icon  10   d  displayed on the touch panel is selected after the bi-axial movement. 
         [0034]    The first movement unit  22  has a Y-axis movement unit  23  and an X-axis movement unit  24  and is a processing unit for moving the application region  10   b  in the Y-axis direction and the X-axis direction. That is, the first movement unit  22  executes the bi-axial movement of the application region  10   b  when an instruction for bi-axial movement is received from the request detecting unit  21 . 
         [0035]    The Y-axis movement unit  23  is a processing unit for moving the application region  10   b  downward, that is, in the negative direction of the Y axis. Specifically, the Y-axis movement unit  23  refers to the previous value DB  13   b  when a bi-axial movement instruction is received. When Y-axis position information is stored in the previous value DB  13   b,  the Y-axis movement unit  23  then performs parallel movement of the region of the application region  10   b  to the position specified by the position information. At this time, the Y-axis movement unit  23  performs parallel movement on the application region  10   b  in the Y-axis direction so that the uppermost part of the application region  10   b  is positioned at the position specified by the position information. 
         [0036]    Conversely, the Y-axis movement unit  23  reads a default value from the default value DB  13   a  when no Y-axis position information is stored in the previous value DB  13   b.  The Y-axis movement unit  23  then performs parallel movement of the region of the application region  10   b  to the position specified by the read default value. At this time, the Y-axis movement unit  23  performs the parallel movement on the application region  10   b  so that the uppermost part of the application region  10   b  is positioned at the position specified in accordance with the position information. 
         [0037]    The following is an explanation of movement in the Y-axis direction of the application region  10   b.    FIG. 4  is a view for explaining a screen movement in the Y-axis direction. Initial movement when no position information is stored in the previous value DB  13   b  will be explained. As illustrated in  FIG. 4 , the Y-axis movement unit  23  causes the application region  10   b  to slide downward so that the uppermost part of the application region  10   b  reaches the default movement value when the parallel movement icon  10   d  is selected (S 1 ). At this time, the navigation bar region  10   c  does not move. 
         [0038]    The Y-axis movement unit  23  displays a left operation icon  10   e  and a right operation icon  10   f  in the application region  10   b  when the application region  10   b  is caused to slide downward. Further, the Y-axis movement unit  23  vertically inverts the parallel movement icon  10   d  inside the navigation bar region  10   c.  The left operation icon  10   e  is an icon for causing the application region  10   b  to be moved to the left. The right operation icon  10   f  is an icon for causing the application region  10   b  to be moved to the right. When the parallel movement icon  10   d  is selected at this stage, the downward sliding of the application region  10   b  is canceled and the request detecting unit  21  returns the application region  10   b  to the original state. 
         [0039]    The Y-axis movement unit  23  then receives an operation on a border A between the application region  10   b  after the sliding and a non-display region and is able to cause the border A to be moved (S 2 ). For example, the user touches the border A and moves the border A up and down to cause the application region  10   b  to slide to any position, thereby changing the height of the application region  10   b  as desired. 
         [0040]    Next, when the left operation icon  10   e  or the right operation icon  10   f  is selected by the user, the Y-axis movement unit  23  instructs the start of processing by the X-axis movement unit  24 . The Y-axis movement unit  23  stores, in the previous value DB  13   b,  the position information on the Y axis of the border A when the left operation icon  10   e  or the right operation icon  10   f  is selected. 
         [0041]    Returning to  FIG. 3 , the X-axis movement unit  24  is a processing unit for performing parallel movement of the application region  10   b  to the right, that is, in the positive direction of the X axis, or for performing parallel movement of the application region  10   b  to the left, that is, in the negative direction of the X axis. 
         [0042]    Specifically, the X-axis movement unit  24  refers to the previous value DB  13   b  when an instruction for starting processing is received from the Y-axis movement unit  23 . When the X-axis position information is stored in the previous value DB  13   b,  the X-axis movement unit  24  then performs parallel movement on the region of the application region  10   b  to the position specified by the position information. At this time, the X-axis movement unit  24  performs parallel movement on the application region  10   b  in the X-axis direction so that the right edge or the left edge of the application region  10   b  is positioned at the position specified by the position information. 
         [0043]    Conversely, when no X-axis position information is stored in the previous value DB  13   b,  the X-axis movement unit  24  reads a default value from the default value DB  13   a.  The X-axis movement unit  24  then performs parallel movement of the region of the application region  10   b  to the position specified by the read default value. At this time, the X-axis movement unit  24  performs parallel movement on the application region  10   b  in the X-axis direction so that the right edge or the left edge of the application region  10   b  is positioned at the position specified by the position information. 
         [0044]    The following is an explanation of movement in the X-axis direction of the application region  10   b.    FIG. 5  is a view for explaining a screen movement in the X-axis direction. Initial movement when no position information is stored in the previous value DB  13   b  will be explained. As illustrated in  FIG. 5 , the X-axis movement unit  24  causes the application region  10   b  to slide to the right so that the left edge of the application region  10   b  reaches the default movement value when the right operation icon  10   f  is selected (S 3 ). At this time, the navigation bar region  10   c  does not move. 
         [0045]    The X-axis movement unit  24  does not display the left operation icon  10   e  when sliding the application region  10   b  to the right. The X-axis movement unit  24  inverts the display of the right operation icon  10   f  to a left operation icon  10   g.  When the left operation icon  10   g  is selected, the application region  10   b  is returned to the state before the movement in the X-axis direction, that is, to the initial state in  FIG. 5 . When the parallel movement icon  10   d  is selected at this stage, the request detecting unit  21  returns the application region  10   b  to the initial state or to the state before the movement in the horizontal direction. 
         [0046]    Moreover, the X-axis movement unit  24  receives an operation on a border B between the application region  10   b  after the sliding and the non-display region and is able to cause the border B to be moved (S 4 ). For example, the user touches the border B and moves the border B to the left and right to cause the application region  10   b  to slide to any position, thereby allowing the width of the application region  10   b  to be changed as desired. 
         [0047]    Similarly, the X-axis movement unit  24  causes the application region  10   b  to slide to the left so that the right edge of the application region  10   b  reaches the default movement value when the left operation icon  10   e  is selected (S 5 ). At this time, the navigation bar region  10   c  does not move. The X-axis movement unit  24  does not display the right operation icon  10   f  when sliding the application region  10   b  to the left. The X-axis movement unit  24  then inverts the display of the left operation icon  10   e  to a right operation icon  10   h.  When the right operation icon  10   h  is selected, the application region  10   b  is returned to the state before the movement in the X-axis direction, that is, to the initial state in  FIG. 5 . Moreover, the X-axis movement unit  24  receives an operation on a border C between the application region  10   b  after the sliding and the non-display region and is able to cause the border C to be moved. 
         [0048]    When the position of the border B or the border C is defined, the X-axis movement unit  24  stores the position information of the defined position in the previous value DB  13   b.  For example, when the operation on the border B or the border C does not have a predetermined time period, when another icon is selected, or when a defining operation such as two consecutive touches on the touch panel is performed, the X-axis movement unit  24  determines that the position of border B or the border C is defined. The X-axis movement unit  24  instructs the second movement unit  25  to start processing when the position of the border B or the border C is defined. 
         [0049]    The second movement unit  25  is a processing unit for rearranging the icons inside the navigation bar region  10   c  accompanying the movement of the application region  10   b.  Specifically, the second movement unit  25  rearranges the icons inside the navigation bar region  10   c  to be contained inside an area having a width that is the same as the X-axis width of the application region  10   b.    
         [0050]    The following is a detailed explanation of the rearrangement of the icons inside the navigation bar region  10   c.    FIG. 6  is a view for explaining the rearrangement of icons. Here, the X-axis width of the application region  10   b  is depicted as “w”, the width of the navigation bar region  10   c  is depicted as “w navi ”, and a threshold is depicted as “w min ”. 
         [0051]    As illustrated in (1) and (2) in  FIG. 6 , the second movement unit  25  sets the X-axis width “w” to be the same as the width “w navi ” of the navigation bar region  10   c  if the X-axis width “w” of the application region  10   b  is equal to or greater than the threshold “w min ”. The second movement unit  25  then rearranges the icons so that the icons are contained inside the area of the X-axis width “w”. 
         [0052]    As illustrated in (3) in  FIG. 6 , the second movement unit  25  sets the width “w navi ” of the navigation bar region  10   c  to be the same as the threshold “w min ” if the X-axis width “w” of the application region  10   b  is less than the threshold “w min ”. The second movement unit  25  then rearranges the icons so that the icons are contained inside the area of the threshold “w min ”. 
         [0053]    The second movement unit  25  is able to automatically change the threshold “w min ” in accordance with the number of icons. For example, when the number of icons displayed in the navigation bar region  10   c  is “n” and the horizontal width for pressing one icon is “w con ”, the second movement unit  25  calculates the threshold as “w min =n×w con ”. 
         [0054]    The second movement unit  25  then executes the control as described in  FIG. 6  in accordance with the threshold “w min ” calculated using the number of icons. When the width “w navi ” of the navigation bar region  10   c  is defined, the second movement unit  25  may also store the defined “w navi ” in the previous value DB  13   b.  When the parallel movement icon  10   d  is selected at this stage, the request detecting unit  21  returns the application region  10   b  to the initial state or to the state before the movement in the horizontal direction. 
         [0055]      FIG. 7  is a flow chart of a processing flow. As illustrated in  FIG. 7 , when the selection of the parallel movement icon  10   d  is detected by the request detecting unit  21  (S 101 : Yes), the Y-axis movement unit  23  performs downward parallel movement of the application region  10   b  (S 102 ). 
         [0056]    Next, the Y-axis movement unit  23  displays the left and right operation icons on the screen of the touch panel (S 103 ). That is, the Y-axis movement unit  23  displays the left operation icon  10   e  and the right operation icon  10   f  on the screen. The Y-axis movement unit  23  then vertically inverts the display of the parallel movement icon  10   d  (S 104 ). 
         [0057]    Next, if the inverted parallel movement icon  10   d  is not selected (S 105 : No) and the left operation icon  10   e  is selected (S 106 : Left), the X-axis movement unit  24  erases the display of the right operation icon  10   f  (S 107 ). 
         [0058]    The X-axis movement unit  24  performs parallel movement to move the application region  10   b  to the left (S 108 ), and inverts the display of the left operation icon  10   e  to change the display to the right operation icon  10   h  (S 109 ). The second movement unit  25  then rearranges the icons displayed in the navigation bar region  10   c  (S 110 ). 
         [0059]    Next, if the inverted parallel movement icon  10   d  is not selected (S 111 : No) and the right operation icon  10   h  is selected (S 112 : Yes), the X-axis movement unit  24  inverts the right operation icon  10   h  and displays the original left operation icon  10   e  (S 113 ). 
         [0060]    The X-axis movement unit  24  then performs parallel movement to move the application region  10   b  to the right (S 114 ) and displays the right operation icon  10   f  (S 115 ). The second movement unit  25  then rearranges the icons displayed in the navigation bar region  10   c  (S 116 ). Thereafter, the processing from S 105  is repeated. If the right operation icon  10   h  is not selected in S 112  (S 112 : No), the processing from S 111  is repeated. 
         [0061]    Conversely, if the inverted parallel movement icon  10   d  is not selected (S 105 : No) and the right operation icon  10   f  is selected (S 106 : Right), the X-axis movement unit  24  erases the display of the left operation icon  10   e  (S 117 ). 
         [0062]    Next, the X-axis movement unit  24  performs parallel movement to move the application region  10   b  to the right (S 118 ), and inverts the display of the right operation icon  10   f  to change the display to the left operation icon  10   g  (S 119 ). The second movement unit  25  then rearranges the icons displayed in the navigation bar region  10   c  (S 120 ). 
         [0063]    Next, if the inverted parallel movement icon  10   d  is not selected (S 121 : No) and the left operation icon  10   g  is selected (S 122 : Yes), the X-axis movement unit  24  inverts the left operation icon  10   g  and displays the original right operation icon  10   f  (S 123 ). 
         [0064]    Thereafter, the X-axis movement unit  24  performs parallel movement to move the application region  10   b  to the left (S 124 ) and displays the left operation icon  10   e  (S 125 ). The second movement unit  25  then rearranges the icons displayed in the navigation bar region  10   c  (S 126 ). Thereafter, the processing from S 105  onward is repeated. If the left operation icon  10   g  is not selected in S 122  (S 122 : No), the processing from S 121  is repeated. 
         [0065]    When the request detecting unit  21  detects that the inverted parallel movement icon  10   d  has been selected (S 105 : Yes), the parallel movement is canceled and the state is returned to the original state (S 127 ). Similarly, if the inverted parallel movement icon  10   d  is selected in S 111  (S 111 : Yes), or if the inverted parallel movement icon  10   d  is selected in S 121  (S 121 : Yes), the request detecting unit  21  returns the state to the original state (S 127 ). 
         [0066]    In this way, the smartphone  10  according to the first embodiment is able to perform parallel movement on the application region  10   b  for displaying interface components such as icons in the Y-axis direction and the X-axis direction. As a result, the user interface such as the icons displayed in the diagonally opposite corner with regard to the hand holding the smartphone  10 , can be operated with the hand holding the smartphone  10 . 
         [0067]    The smartphone  10  allows the user to change the position subjected to parallel movement whereby the user is able to display the application region  10   b  at a position suitable to the user and convenience for the user is improved. 
         [0068]    The smartphone  10  stores positions set once by the user, and when the application region  10   b  is moved thereafter, the application region  10   b  can be moved to the set position. Therefore, the user can omit performing an operation for resetting the position of the application region  10   b.    
         [0069]    The smartphone  10  is able to adjust the width of the navigation bar region  10   c  in accordance with the number of icons inside the navigation bar region  10   c.  Therefore, a state in which the icons become very small such that it is difficult to press the icons can be avoided. 
       Embodiment 2 
       [0070]    While the first embodiment describes a case in which the orientation of the smartphone  10  is in the so-called vertical orientation, the embodiments are not limited to this state and the processing can be carried out in the same way even when the orientation of the smartphone  10  is in the so-called horizontal orientation. 
         [0071]    An example of performing bi-axial movement of the application region  10   b  when the orientation of the smartphone  10  is the horizontal orientation is discussed in the second embodiment. In the second embodiment, the X axis is the longitudinal direction of the smartphone  10  and the Y axis is the transverse direction of the smartphone  10 . An example of moving in the Y-axis direction after first being moved in the X-axis direction is described in the second embodiment. As a result, the parallel movement icon  10   d  takes on a rightward orientation and a leftward orientation instead of the downward orientation and the upward orientation. While the displays of the left and right operation icons are changed to up and down operation icons, the contents of the processing are the same. 
         [0072]      FIG. 8  is a view for explaining an example of a screen transition during horizontal orientation. The smartphone  10  illustrated in  FIG. 8  displays the screen  10   a  having the application region  10   b  and the navigation bar region  10   c  (see ( 4 ) in  FIG. 8 ). The parallel movement icon for executing a parallel movement of the screen displayed in the application region  10   b,  is displayed in the navigation bar region  10   c.  The parallel movement icon is a rightward orientation icon which is different from the first embodiment. 
         [0073]    When the parallel movement icon is selected, the X-axis movement unit  24  in the smartphone  10  then performs parallel movement to move the application region  10   b  to the right (see (5) in  FIG. 8 ). At this time, the second movement unit  25  rearranges the icons in the navigation bar region  10   c  to conform to the width in the X-axis direction of the application region  10   b.  The X-axis movement unit  24  changes the orientation of the parallel movement icon from the right to the left. The X-axis movement unit  24  displays a downward movement icon in the application region  10   b.    
         [0074]    When the downward movement icon is selected, the Y-axis movement unit  23  in the smartphone  10  then performs parallel movement to move the application region  10   b  downward (see (6) in  FIG. 8 ). At this time, the X-axis movement unit  24  inverts the orientation of the downward movement icon and displays an upward movement icon. 
         [0075]    Conversely, when the parallel movement icon is selected during the state depicted in (5), the request detecting unit  21  returns the display of the application region  10   b  to the state depicted in (4) which is the original state. When the parallel movement icon is selected during the state depicted in (6), the request detecting unit  21  returns the display of the application region  10   b  to the state depicted in (4) which is the original state. When the upward movement icon is selected during the state depicted in (6), the request detecting unit  21  returns the display of the application region  10   b  to the state depicted in (5) which is the state before the movement. 
         [0076]    In this way, the smartphone  10  is able to perform parallel movement on the application region  10   b  for displaying interface components such as icons in the Y-axis direction and the X-axis direction even when the smartphone  10  is in the horizontal orientation without being limited to the vertical orientation. As a result, the user interface such as the icons displayed in the diagonally opposite corner with regard to the hand holding the smartphone  10 , can be operated with the hand holding the smartphone  10 . 
       Embodiment 3 
       [0077]    Although embodiments of the present disclosure have been described up to this point, the present disclosure may be implemented in various different modes other than the embodiments of the present disclosure described above. 
         [0078]    An example in which the display was moved in the X-axis direction after being moved in the Y-axis direction has been described in the first embodiment. An example in which the display was moved in the Y-axis direction after being moved in the X-axis direction has been described in the second embodiment. However, the present disclosure is not limited as such. For example, the sequence of the movements in the X axis and the Y axis may be carried out in any order and either movement may be carried out first. 
         [0079]    When moving, for example, the display to the previous position, the smartphone  10  may move the display to the previous position in the Y-axis direction and then the X-axis direction in two steps, or move the display to the previous position in one step. 
         [0080]    The sizes of the application region  10   b  and the navigation bar region  10   c  are not limited to the sizes illustrated in the first and second embodiments, and may be changed as desired. The position of the navigation bar region  10   c  is similarly not limited to the positions illustrated in the first and second embodiments. For example, the application region  10   b  may be arranged on the upper side, the right side, or the left side. 
         [0081]    The processing may be carried out in the same way even when the regions of the screen  10   a  are not separated and only the application region  10   b  is displayed. Specifically, only the processing of the first movement unit  22  is executed. 
         [0082]    The constituent elements of the devices illustrated in  FIG. 3  do not have to be configured physically as illustrated. That is, the elements may be distributed or integrated as desired. For example, the first movement unit  22  and the second movement unit  25  may be integrated. All or a part of the processing functionality implemented by the components may be performed by a CPU and a program that is analyzed and executed by the CPU, or may be implemented as hardware with wired logic. 
         [0083]    Among the processing described in the present embodiment, all or some of the processing described as being conducted automatically may be conducted manually. Conversely, all or some of the processing described as being conducted manually may be conducted automatically using known methods. The procedures, the control procedures, the specific names, and information including various kinds of data and parameters that have been described in the specification and illustrated in the drawings may be altered, unless specified in particular. 
         [0084]    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 showing of the superiority and inferiority of the invention. Although the embodiments of the present invention 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.