JP2011064891A - Display device, method and program for controlling display - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate operation of a display device which can change a direction of displaying an image. <P>SOLUTION: The display device includes an LCD having a first display area and a second display area arranged side by side in a prescribed direction; and a display direction detecting part (S07) that detects whether the direction where the first display area and the second display area are arranged side by side is in a lateral or vertical direction determined by the relative positions between a user and the display device. The device has a switching part that switches a display mode between a first mode of displaying a single page in the first display area and the second display area and a second mode of respectively displaying continuous two pages in the first display area and the second display area. The switching part acts, accordingly when the direction of the display detected changes (S08, S17), to switch into the second mode when the display has been switched into the first mode (S09 or S20) and to switch into the first mode when the display has been switched into the second mode (S11 or S18). <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a display device, a display control method, and a display control program, and more particularly, to a display device that can change the direction in which an image is displayed, a display control method that is executed by the display device, and a display control program.

  There is known a technique for displaying electronic data of a document on a display device such as a liquid crystal display (LCD) or electronic paper instead of printing on paper for paperless. In many cases, the display surface of the display device is substantially equal to the aspect ratio of the document. On the other hand, a document is used in one of two types of display directions: portrait portrait and landscape landscape. For this reason, when the orientation of the display surface of the display device is fixed, the original is reduced and displayed depending on the display direction of the original. For example, if the display surface of the display device is fixed in landscape orientation, a portrait document is displayed, or if the display surface of the display device is fixed in portrait orientation, the display direction is landscape. This is a case where the original is displayed.

  In Japanese Patent Application Laid-Open No. 2008-65166, when the longitudinal direction of electronic paper is closed, the orientation of the image displayed on the back surface of the electronic paper is set to the same orientation as the orientation of the image displayed on the front surface. When the short direction is closed, a display device is described in which the orientation of the image displayed on the back surface of the electronic paper is opposite to the orientation of the image displayed on the front surface.

However, the conventional display device can display an image having a portrait display direction, but cannot display an image having a landscape display direction.
JP 2008-65166 A

  The present invention has been made to solve the above-described problems, and one of the objects of the present invention is to provide a display device that can be easily operated.

  Another object of the present invention is to provide a display control method that is easy to operate.

  Still another object of the present invention is to provide a display control program that is easy to operate.

  The present invention has been made to solve the above-described problems, and according to an aspect of the present invention, the display device includes a display including a first display area and a second display area arranged side by side in a predetermined direction. The first direction determined by the relative position between the user and the display device, and the first direction and the first display area, the display control means for controlling the display of the display means, the display control means for controlling the display of the display means Device direction detecting means for detecting which direction is the second direction that intersects the direction, and the display control means displays a single page when displaying display data including a plurality of pages on the display means. Switching means for switching the display mode to either the first mode for displaying the first display area and the second display area or the second mode for displaying two consecutive pages in the first display area and the second display area respectively. Including, switching The stage is switched to the second mode when switched to the first mode and to the first mode when switched to the second mode in response to a change in the device direction detected by the device direction detecting means. Switch to.

  According to this aspect, in response to a change in the detected device direction, when the mode is switched to the first mode, the mode is switched to the second mode, and when the mode is switched to the second mode, the mode is switched to the first mode. . For this reason, since the display mode is switched simply by changing the device direction of the display device, a display device that can be easily operated can be provided.

  Preferably, the display device further includes display direction setting means for setting the display direction of the display data to either portrait or landscape, and the switching means is configured to display the device when the display direction of the display data is set to portrait. While the first direction is detected by the direction detection means, the mode is switched to the second mode. When the second direction is detected by the apparatus direction detection means, the mode is switched to the first mode, and the display direction of the display data is changed. When the landscape is set, the mode is switched to the first mode while the first direction is detected by the device direction detecting unit, and the second mode is set while the second direction is detected by the device direction detecting unit. Switch.

  Preferably, display means including a first display area and a second display area arranged side by side in a predetermined direction, display control means for controlling display of the display means, and a direction perpendicular to the display surface of the display means as an axis Rotation detecting means for detecting the rotation angle to be displayed, and two pages continuous with the first mode for displaying a single page in the first display area and the second display area are displayed in the first display area and the second display area, respectively. Display mode setting means for setting the display mode to any one of the second modes, and when the display control means displays the display data including a plurality of pages on the display means, the single page is displayed in the first mode. Switching means for switching the display mode to either the first mode for displaying the first mode displayed in the display area and the second display area or the second mode for displaying two consecutive pages in each of the first display area and the second display area; The switching means switches to the second mode when switched to the first mode and switches to the first mode when switched to the second mode in response to detection of rotation of a predetermined angle by the rotation detecting means. Switch to.

  According to this aspect, in response to detection of rotation of a predetermined angle about the direction perpendicular to the display surface, when the mode is switched to the first mode, the mode is switched to the second mode, and the mode is switched to the second mode. Since the mode is switched to the first mode, the display mode is switched by a simple operation of rotating the display surface. As a result, a display device that can be easily operated can be provided.

  Preferably, further comprising display direction setting means for setting the display direction of the display data to either portrait or landscape, and the display control means is configured to display the first display mode when the display direction is set to portrait. In the first mode, the first arrangement direction from the second display area to the first display area is displayed with the upper direction of the display data. In the second mode, the second arrangement direction intersecting with the first arrangement direction is displayed. When the display data is displayed in the upward direction and the display direction is set to landscape, when the display mode is the first mode, the second arrangement direction is displayed in the upward direction and the display mode is the second. In the mode, display is performed with the first arrangement direction being the upward direction of the display data.

  Preferably, when switching from the second mode to the first mode, the display control means displays the page data of the page displayed in the first display area in the first display area and the second display area, and the first mode. When switching from the second mode to the second mode, the page data of the display page displayed in the first display area and the second display area is displayed in the first display area, and the page data of the next page of the display page is displayed in the second display area. Display in the area.

  According to another aspect of the present invention, the display control method is a display control method that is executed by a display device that includes display means including a first display area and a second display area arranged side by side in a predetermined direction. Whether the direction in which the first display area and the second display area are arranged is the first direction determined by the relative position between the user and the display device or the second direction intersecting the first direction. And when displaying the display data including a plurality of pages on the display means, the first two pages that are continuous with the first mode in which a single page is displayed in the first display area and the second display area are displayed. Switching the display mode to either the display area or the second mode displayed in each of the second display areas, and the step of switching the display mode is detected when the mode is switched to the first mode. A step of switching to the second mode in response to a change in the detected device direction, and a change in the device direction detected in the detecting step in the case of switching to the second mode. Switching to one mode.

  If this situation is followed, the display control method which made operation easy can be provided.

  According to still another aspect of the present invention, a display control method is a display control method executed by a display device including a display unit including a first display area and a second display area arranged side by side in a predetermined direction. And detecting the rotation angle about the direction perpendicular to the display surface of the display means and displaying the display data including a plurality of pages on the display means. Switching the display mode to either the first display area and the second mode for displaying two consecutive pages in each of the first display area and the second display area. If the mode is switched to the first mode, the step of switching to the second mode in response to the detection of the rotation of the predetermined angle in the step of detecting the rotation angle, and the mode switching to the second mode If the gills, including the steps of switching the first mode in response to a rotation of a predetermined angle is detected in the step of detecting a rotation angle.

  If this situation is followed, the display control method which made operation easy can be provided.

  According to still another aspect of the present invention, the display control program is executed by a computer that controls a display device including display means including a first display area and a second display area arranged side by side in a predetermined direction. A second direction in which the device direction in which the first display region and the second display region are arranged intersects the first direction and the first direction determined by a relative position between the user and the display device. The first mode in which a single page is displayed in the first display area and the second display area when displaying the display data including a plurality of pages on the display means. A step of switching the display mode by causing the computer to execute a step of switching the display mode to either the first mode or the second mode of displaying the two pages in the second display area. When the mode is switched to the first mode, the step of switching to the second mode in response to the change of the device direction detected in the step of detecting, and the case of switching to the second mode are detected. Switching to a first mode in response to a change in device orientation detected in the step.

If this aspect is followed, the display control program which made operation easy can be provided.
Display control program.

  According to still another aspect of the present invention, the display control program is executed by a computer that controls a display device including display means including a first display area and a second display area arranged side by side in a predetermined direction. A display control program comprising: a step of detecting a rotation angle about an axis perpendicular to a display surface of a display means; and display data including a plurality of pages on a display means. A step of switching the display mode to one of a first mode for displaying in the display area and the second display area and a second mode for displaying two consecutive pages in the first display area and the second display area, respectively. The switching step is executed in response to the detection of the rotation of the predetermined angle in the step of detecting the rotation angle when the mode is switched to the first mode. A step of switching to the second mode, if they are switched to the second mode, including the steps of switching the first mode in response to a rotation of a predetermined angle is detected in the step of detecting a rotation angle.

  If this aspect is followed, the display control program which made operation easy can be provided.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same members are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

  FIG. 1 is a plan view of a display device according to one embodiment of the present invention. Referring to FIG. 1, display device 100 includes a liquid crystal display device (LCD) 19 provided on the upper surface, touch panel 21 </ b> B, power key 21 </ b> A, and first and second infrared sensors 27 and 29. .

  The display surface of the LCD 19 has a horizontally long shape when the display device 100 is arranged in the direction of FIG. The LCD 19 includes a first display area 41 and a second display area 43. Note that the dotted lines shown in the LCD 19 in FIG. 1 are provided for convenience in order to show the first display area 41 and the second display area 42, and do not actually exist. The first display area 41 and the second display area 42 are arranged side by side in FIG. Here, the first display area 41 and the second display area 43 are congruent, and the display surface of the LCD 19 is similar to the first display area 41 and the second display area 43.

  Here, the LCD 19 has one screen, and a later-described CPU 11 (see FIG. 2) causes the LCD 19 to display a one-screen image including the image of the first display area 41 and the image of the second display area 43 on the LCD 19. Images are displayed in the first display area 41 and the second display area 43 of the LCD 19, respectively.

  The first display area 41 and the second display area 42 are arranged side by side in FIG. 1, but may be arranged side by side. Further, an LCD for displaying the image of the first display area 41 and an LCD for displaying the image of the second display area 43 may be provided. In addition, as long as the device displays an image, an organic ELD (Electroluminescence Display), electronic paper, or the like may be used instead of the LCD 19, or an LCD, organic ELD, and electronic paper may be combined.

  The touch panel 21 </ b> B is made of a transparent member and is provided so as to be superimposed on the display surface of the LCD 19. When the user designates the display surface of the LCD 19, the coordinates of the designated position on the display surface are output.

  The first and second infrared sensors 27 and 29 have directivity and detect a person in a predetermined direction. The first infrared sensor 27 detects a person existing below the display device 100 in FIG. 1, and the second infrared sensor 29 detects a person present on the right side of the display device 100 in FIG. The power key 21A is a switch for switching the power of the display device 100 on and off.

  FIG. 2 is a block diagram illustrating an example of a hardware configuration of the display device. Referring to FIG. 2, display device 100 includes a central processing unit (CPU) 11, a ROM (Read Only Memory) 13, and a RAM (Random), each of which is connected to bus 31 and controls the entire display device 100. (Access Memory) 15, EEPROM (Electronically Erasable and Programmable ROM) 17, LCD 19, communication interface (I / F) 23 for connecting display device 100 to the network, operation unit 21 for accepting user operations, The external I / F 25 and the first infrared sensors 27 and 29 are included.

  The LCD 19 is controlled by the CPU 11 to display an image. The ROM 13 stores a program executed by the CPU 11 or data necessary for executing the program. The RAM 114 is used as a work area when the CPU 111 executes a program. The EEPROM 17 stores programs or data in a nonvolatile manner.

  The operation unit 21 includes a plurality of keys including a power key 21 </ b> A and a touch panel 21 </ b> B provided on the upper surface of the LCD 19. Various operations are received by combining the LCD 19 and the touch panel 21B.

  The communication I / F 23 is an interface for connecting the display device 100 to a network such as a local area network. CPU11 communicates with another display apparatus or computer via communication I / F23, and transmits / receives data. The communication I / F 23 can communicate with a computer connected to the Internet via a network.

  The external I / F 25 is an interface for communicating with an external device. Here, the external I / F 25 performs serial communication with a connected external device. When a CD-ROM driver is connected as an external device to the external I / F 25, the CPU 11 can access a CD (Compact Disk) -ROM 25A attached to the CD-ROM driver via the external I / F 25. The CPU 111 loads the program recorded on the CD-ROM 25A into the RAM 15 and executes it.

  Note that the program executed by the CPU 11 is not limited to the program recorded on the CD-ROM 25A, and the program stored in the EEPROM 17 may be loaded into the RAM 15 and executed. In this case, another computer connected to the network may rewrite the program stored in the EEPROM 17 of the display device 100, or may add a new program and write it. Further, the display device 100 may download a program from another computer connected to the network and store the program in the EEPROM 17. The program here includes not only a program directly executable by the CPU 11 but also a source program, a compressed program, an encrypted program, and the like.

  Each of the first and second infrared sensors 27 and 29 outputs an ON signal to the CPU 11 while detecting a person, and outputs an OFF signal to the CPU 11 while not detecting a person.

  FIG. 3 is a functional block diagram illustrating an example of functions of a CPU included in the display device. The functions of the CPU 11 shown in FIG. 3 are formed in the CPU 11 when the CPU 11 executes a display control program stored in the ROM 13 or the EEPROM 17. Referring to FIG. 3, the CPU 11 includes a display control unit 51 that controls display on the LCD 19, a device direction detection unit 53 that detects a relative position between the display device 100 and a person, and display of an image to be displayed. A display direction setting unit 55 for setting the direction.

  When one of the data stored in the EEPROM 17 is designated as display data by the user, the display control unit 51 reads the display data, and the LCD 19 displays an image of the page data included in the display data. It displays in the 1st display area 41 and the 2nd display area 43 which have. Here, a case where the display data includes page data of a plurality of pages from the first page to the Nth page (N is a positive integer) will be described as an example.

  The device direction detector 53 receives the outputs of the first and second infrared sensors 27 and 29. When an ON signal is input from any of the first and second infrared sensors 27 and 29, the CPU 11 detects the relative position between the display device and the person. Here, the relative position between the person and the LCD 19 is indicated by the direction of the display surface of the LCD 19 viewed by the person (hereinafter referred to as “device direction”). The direction in which the first display area 41 and the second display area 43 of the LCD 19 are arranged is parallel to the long side of the display surface of the LCD 19. The relative position between the person and the LCD 19 is a relative position where the direction in which the first display area 41 and the second display area 43 of the LCD 19 are aligned with respect to the person, and the first display area of the LCD 19 with respect to the person. There is a relative position in which the direction in which 41 and the second display area 43 are arranged is vertical. In the case of a relative position in which the direction in which the first display area 41 and the second display area 43 of the LCD 19 are aligned with respect to a person is horizontal (horizontal direction), the line connecting the two eyes of the person and the long side of the display surface Are parallel to each other, and when the first display area 41 and the second display area 43 of the LCD 19 are arranged in a vertical relative direction with respect to the person (vertical direction), the line connecting the two eyes of the person and the display The long side of the surface is perpendicular. A relative position in which the direction in which the first display area 41 and the second display area 43 of the LCD 19 are aligned with respect to a person is horizontal is referred to as a horizontal direction (first direction), and the first display area 41 of the LCD 19 with respect to a person. The relative position in which the direction in which the display area 43 and the second display area 43 are arranged in the vertical direction is referred to as the vertical direction (second direction).

  The apparatus direction detection unit 53 outputs a signal indicating the horizontal direction to the switching unit 57 while the ON signal is input from the first infrared sensor 27, and the vertical direction while the ON signal is input from the second infrared sensor 29. Is output to the switching unit 57.

  The display direction setting unit 55 sets the display direction of the image displayed on the LCD 19. The display direction includes a portrait and a landscape. When the display direction is set in the display data, the display direction setting unit 55 extracts the display direction from the display data. When the display direction is not set in the display data, the display direction setting unit 55 displays a setting screen including an area for setting the display direction on the LCD 19 and a display that the user inputs to the operation unit 21 according to the setting screen. Get direction. The display direction setting unit 55 sets the display direction extracted from the display data or the display direction acquired from the operation unit 21. Specifically, the display direction is output to the switching unit 57.

  When the display direction is set to portrait, the display control unit 51 starts from the second display area 43 to the first display area if the relative position between the display device 100 and the person is the horizontal direction (first direction). When the image is displayed with the first arrangement direction toward 41 as the upward direction, and the relative position between the display device and the person is the vertical direction (second direction), the first display area 41 is displayed on the left side for the second display. An image is displayed with the second arrangement direction, which is the upper direction when the region 43 is arranged to the right, being the upward direction. Further, when the display direction is set to landscape, if the relative position between the display device and the person is the horizontal direction (first direction), the image is displayed with the second arrangement direction upward, and the display device If the relative position between the character and the person is the vertical direction (second direction), the image is displayed with the first arrangement direction upward. The first arrangement direction and the second arrangement direction intersect at right angles.

  FIG. 4A is a diagram illustrating an example of a display screen when the display direction is set to portrait and the relative position between the display device and the person is the vertical direction. One isosceles triangle whose apex angle is located in the first arrangement direction from the second display area 43 toward the first display area 41 is displayed on the entire first display area 41 and the second display area 43. FIG. 4B is a diagram illustrating an example of a display screen when the display direction is set to portrait and the apparatus direction is horizontal. An image including one isosceles triangle obtained by reducing the image of the display page shown in FIG. 4A is displayed in the first display area 41 with the apex angle arranged in the first arrangement direction, and the second display area An image including two isosceles triangles, which is an image of the next page of the display page, is displayed at 43 with the apex angles arranged in the second arrangement direction.

  FIG. 5A is a diagram illustrating an example of a display screen when the display direction is set to landscape and the apparatus direction is the horizontal direction. One of the first display area 41 and the second display area 43 that has an apex angle in the second arrangement direction that is above when the first display area 41 is on the left and the second display area 43 is on the right. An isosceles triangle is displayed. FIG. 5B is a diagram illustrating an example of a display screen when the display direction is set to landscape and the apparatus direction is the vertical direction. An image including one isosceles triangle obtained by reducing the image of the display page shown in FIG. 5A is displayed in the first display area 41 with the apex angle arranged in the first arrangement direction, and the second display area An image including two isosceles triangles, which is an image of the next page of the display page, is displayed at 43 with the apex angles arranged in the first arrangement direction.

  Returning to FIG. 3, the display control unit 51 includes a switching unit 57. When displaying the display data including a plurality of pages on the LCD 19, the switching unit 57 displays the first mode in which a single page is displayed in the first display area 41 and the second display area 43, and two consecutive pages are displayed in the first mode. The display mode is switched to one of the second modes displayed in each of the first display area 41 and the second display area 43. When the portrait is input as the display direction from the display direction setting unit 55, the switching unit 57 switches the display mode to the second mode while the horizontal direction is input from the device direction detection unit 53, and detects the device direction. While the vertical direction is input from the unit 53, the display mode is switched to the first mode. In addition, when the landscape is input from the display direction setting unit 55 as the display direction, the switching unit 57 switches the display mode to the first mode while the horizontal direction is input from the device direction detection unit 53, and the device direction While the vertical direction is input from the detection unit 53, the display mode is switched to the second mode.

  For this reason, when the display direction of the page data image is landscape, the display control unit 51 displays the page data image of a single page on the entire LCD 19 if the LCD 19 is horizontally oriented with respect to a person. If the LCD 19 is vertically long for a person, the page data image of the previous page of the two consecutive pages is displayed in the first display area 41, and the page data image of the subsequent page is displayed in the second direction. Display in the area. In addition, when the display direction of the page data image is portrait, the display control unit 51 displays the page data image of the previous page of the two consecutive pages if the LCD 19 is horizontally long with respect to a person. 1 is displayed in the display area 41, the page data image of the subsequent page is displayed in the second display area, and if the LCD 19 is in a portrait orientation with respect to a person, the page data image of a single page is displayed on the LCD 19 Display in whole.

  FIG. 6 is a flowchart illustrating an example of the flow of display control processing. The display control process is a process executed by the CPU 11 when the CPU 11 executes a display control program stored in the ROM 13 or the EEPROM 17. Referring to FIG. 6, CPU 11 determines whether or not designation of display data has been received (step S01). The process waits until designation of display data is accepted (NO in step S01). When designation of display data is accepted (YES in step S01), the process proceeds to step S02.

  In step S02, display data designated by the user is read. For example, display data stored in the EEPROM 17 or the CD-ROM 25A is read. Then, the first page is set as the display page among the plurality of pages included in the read display data.

  In the next step S04, the display direction is acquired. When the display direction is set in the display data, the display direction is obtained by extracting the display direction from the display data. If the display direction is not set in the display data, a setting screen including an area for setting the display direction is displayed on the LCD 19 and the display direction input by the user to the operation unit 21 is acquired according to the setting screen. Then, the acquired display direction is set (step S05). For example, the display direction acquired in step S04 is temporarily stored in the RAM 15.

  In the next step S06, the process is branched depending on the set display direction. If the set display direction is portrait, the process proceeds to step S07. If the display direction is landscape, the process proceeds to step S16.

  In step S07, the apparatus direction is detected. Then, the process is branched depending on the detected apparatus direction (step S08). If the apparatus direction is the horizontal direction, the process proceeds to step S09. If the apparatus direction is the vertical direction, the process proceeds to step S11.

  In step S09, the display mode is set to the second mode, and the process proceeds to step S10. In step S 10, the page data image of the display page is displayed in the first display area 41 with the second arrangement direction upward, and the page data image of the next page of the display page is displayed in the second display area 43. The second arrangement direction is displayed in the upward direction, and the process proceeds to step S13.

  In step S11, the display mode is set to the first mode, and the process proceeds to step S12. In step S12, the page data image of the display page is displayed on the entire first display area 41 and second display area 43 with the first arrangement direction upward, and the process proceeds to step S13.

  In step S13, it is determined whether a page change instruction for changing the display page has been received. Among a plurality of keys of the operation unit 21, a page feed button assigned with an operation for setting the display page to the next page or a page return button assigned with an operation for setting the display page to the previous page is provided. It is determined whether or not the button has been pressed. If a page change instruction is accepted, the process proceeds to step S14; otherwise, the process proceeds to step S15. In step S14, the page specified by the page change instruction is set as a display page, and the process returns to step S07. For example, if the page feed button is pressed, the next page of the display page is set as a new display page. If the page return button is pressed, the page before the display page is set as a new display page. Set to.

  In step S15, it is determined whether an end instruction has been accepted. It is determined whether or not an end button to which an operation for ending display is assigned among a plurality of keys of the operation unit 21 has been pressed. If an end instruction is accepted, the process ends. If not, the process returns to step S07.

  On the other hand, when the landscape display direction is detected, the apparatus direction is detected in step S16. Then, the process branches depending on the detected apparatus direction (step S17). If the apparatus direction is the horizontal direction, the process proceeds to step S18. If the apparatus direction is the vertical direction, the process proceeds to step S20.

  In step S18, the display mode is set to the first mode, and the process proceeds to step S19. In step S19, the image of the page data of the display page is displayed on the entire first display area 41 and second display area 43 with the second arrangement direction upward, and the process proceeds to step S22.

  In step S20, the display mode is set to the second mode, and the process proceeds to step S21. In step S 21, the page data image of the display page is displayed in the first display area 41 with the first arrangement direction upward, and the page data image of the next page of the display page is displayed in the second display area 43. The first array direction is displayed upward, and the process proceeds to step S22.

  In step S22, it is determined whether a page change instruction for changing the display page has been accepted. If a page change instruction is accepted, the process proceeds to step S23; otherwise, the process proceeds to step S24. In step S23, the page specified by the page change instruction is set as a display page, and the process returns to step S16. In step S24, it is determined whether an end instruction has been accepted. If an end instruction is accepted, the process ends. If not, the process returns to step S16.

  In the above-described embodiment, the display device 100 includes the first infrared sensor 27 and the second infrared sensor 29. Therefore, it is effective when the display surface of the LCD 19 is perpendicular to the direction of gravity, for example, when the display device is placed on a desk and used. The display device 100 may include a gravity sensor separately from or in addition to the first infrared sensor 27 and the second infrared sensor 29. When the direction of gravity detected by the gravity sensor is substantially parallel to the display surface of the LCD 19, it is possible to detect which side of the LCD 19 is the direction of gravity. Therefore, when the display surface of the LCD 19 is parallel to the direction of gravity, for example, when the display device 100 is used upright, the device direction of the display device 100 can be detected.

<Modification>
The above-described display device 100 includes the first infrared sensor 27 and the second infrared sensor 29 in order to detect the device direction. However, the display device 100A in the modified example includes the first infrared sensor 27 and the second infrared sensor 27. Instead of the infrared sensor 29, a gyro sensor is provided. The hardware configuration of the display device 100A in the modified example is the same as that of the display device 100 described above except that the first infrared sensor 27 and the second infrared sensor 29 are replaced with a gyro sensor, and thus description thereof will not be repeated here.

  The gyro sensor included in the display device 100 </ b> A according to the modification detects an angular velocity having a rotation axis in a direction perpendicular to the display surface of the LCD 19. The gyro sensor outputs the detected angular velocity to the CPU 11.

  FIG. 7 is a functional block diagram illustrating an example of functions of the CPU 11 included in the display device 100A according to the modification. Referring to FIG. 7, the difference from the functional block diagram shown in FIG. 3 is that it has a rotation detector 59 instead of device direction detector 53, a display mode setting unit 61 is added, and a switching unit. 57 is a point changed to the switching unit 57A.

  Referring to FIG. 7, rotation detection unit 59 receives the output of the gyro sensor and determines whether or not LCD 19 has rotated by a predetermined angle or more by integrating the angular velocity. The predetermined angle is preferably 45 degrees or more and 90 degrees or less. When the rotation detection unit 59 determines that the LCD 19 has rotated more than a predetermined angle, the rotation detection unit 59 outputs a switching instruction to the switching unit 57A.

  The display mode setting unit 61 receives a display mode set by the user in the operation unit 21, and outputs the received display mode to the display control unit 51. For example, a display mode setting screen including an area for setting a display mode is displayed on the LCD 19 and a display mode input by the user to the operation unit 21 according to the display mode setting screen is received.

  When the portrait is input as the display direction from the display direction setting unit 55 and the first mode is input from the display mode setting unit 61 as the display mode, the display control unit 51 displays the first display area 41 and the second display area 43. The image of the display page is displayed with the first arrangement direction from the second display area 43 toward the first display area 41 upward. Further, when the portrait is input as the display direction from the display direction setting unit 55 and the second mode is input from the display mode setting unit 61 as the display mode, the display control unit 51 is arranged in the first display area 41 in the second array. The image of the display page is displayed with the direction upward, and the image of the next page of the display page is displayed in the second display area 43 with the second arrangement direction upward.

  Further, when the landscape is input from the display direction setting unit 55 as the display direction and the first mode is input from the display mode setting unit 61 as the display mode, the display control unit 51 and the second display region 43, the image of the display page is displayed with the second arrangement direction upward. Further, the display control unit 51 receives the landscape as the display direction from the display direction setting unit 55 and the first arrangement direction in the first display area 41 when the second mode is input as the display mode from the display mode setting unit 61. The image of the display page is displayed in the upward direction, and the image of the next page of the display page is displayed in the second display area 43 with the first arrangement direction upward.

  When the switching instruction is input from the rotation detection unit 59, the switching unit 57A switches the display mode. If the display mode before the switching instruction is input is the first mode, the mode is switched to the second mode. If the display mode before the switching instruction is input is the second mode, the mode is switched to the first mode.

  FIG. 8 is a flowchart illustrating an example of the flow of display control processing in the modification. Referring to FIG. 8, steps S31 to S36 are the same as the processes of steps S01 to S06 shown in FIG. In step S37, processing is switched depending on the display mode. The display mode includes a case where the user sets the display mode and a case where the display mode is switched after step S40 or step S43 which will be described later. If the display mode is set to the first mode, the process proceeds to step S38. If the display mode is set to the second mode, the process proceeds to step S41.

  In step S38, the page data image of the display page is displayed on the entire first display area 41 and second display area 43 with the first arrangement direction upward, and the process proceeds to step S39. In step S39, it is determined whether or not the rotation angle calculated based on the angular velocity detected by the gyro sensor is equal to or greater than a threshold value T. If the rotation angle is greater than or equal to threshold value T, the process proceeds to step S40; otherwise, step S40 is skipped and the process proceeds to step S44. In step S40, the display mode is switched to the second mode, and the process proceeds to step S44. Therefore, when step S37 is executed next, the process proceeds to step S41.

  On the other hand, in step S41, the page data image of the display page is displayed in the first display area 41 with the second arrangement direction upward, and the page data image of the next page of the display page is displayed in the second display area. The second arrangement direction is displayed on the display at 43, and the process proceeds to step S42. In step S39, it is determined whether or not the rotation angle calculated based on the angular velocity detected by the gyro sensor is equal to or greater than a threshold value T. If the rotation angle is greater than or equal to threshold value T, the process proceeds to step S43; otherwise, step S43 is skipped and the process proceeds to step S44. In step S43, the display mode is switched to the first mode, and the process proceeds to step S44. Therefore, when step S37 is executed next, the process proceeds to step S38.

  In step S44, it is determined whether a page change instruction for changing the display page has been accepted. If a page change instruction is accepted, the process proceeds to step S45; otherwise, the process proceeds to step S46. In step S45, the page specified by the page change instruction is set as a display page, and the process returns to step S37. In step S46, it is determined whether an end instruction has been accepted. If an end instruction is accepted, the process ends. If not, the process returns to step S37.

  On the other hand, when the landscape display direction is detected, the process is switched depending on the display mode in step S47. The display mode includes a case where the user sets the display mode and a case where the display mode is switched after step S52 or step S53 described later. If the display mode is set to the first mode, the process proceeds to step S48. If the display mode is set to the second mode, the process proceeds to step S51.

  In step S48, the page data image of the display page is displayed on the entire first display area 41 and second display area 43 with the second arrangement direction upward, and the process proceeds to step S49. Since the process of step S49 and step S50 is the same as step S39 and step S40, description is not repeated here. If the rotation angle is equal to or greater than the threshold value T, the display mode is switched to the second mode in step S50, so that the process proceeds to step S51 when step S47 is executed next.

  In step S51, the page data image of the display page is displayed in the first display area 41 with the first arrangement direction upward, and the page data image of the next page of the display page is displayed in the second display area 43. The first arrangement direction is displayed upward, and the process proceeds to step S52. Since the process of step S52 and step S53 is the same as step S42 and step S43, description is not repeated here. If the rotation angle is greater than or equal to the threshold value T, the display mode is switched to the first mode in step S53, so that the process proceeds to step S48 when step S47 is executed next.

  In step S54, it is determined whether a page change instruction for changing the display page has been accepted. If a page change instruction is accepted, the process proceeds to step S55; otherwise, the process proceeds to step S56. In step S55, the page specified by the page change instruction is set as a display page, and the process returns to step S47. In step S56, it is determined whether an end instruction has been accepted. If an end instruction is accepted, the process ends. If not, the process returns to step S47.

  As described above, display device 100 according to the present embodiment has LCD 19 including a first display area and a second display area arranged side by side in a predetermined direction, and a direction in which the first display area and the second display area are arranged. Is detected in the horizontal direction (first direction) or the vertical direction (second direction), and when the display data including a plurality of pages is displayed, the detected device direction changes. Accordingly, when the mode is switched to the first mode, the mode is switched to the second mode, and when the mode is switched to the second mode, the mode is switched to the first mode. For this reason, the user can switch the display mode with a simple operation of changing the device direction of the display device 100.

  When the display direction of the display data is set to portrait, while the horizontal direction (first direction) is detected as the device direction, the mode is switched to the second mode and the vertical direction (second direction). Is switched to the first mode while the display direction of the display data is set to landscape, and when the horizontal direction (first direction) is detected as the device direction, the first mode is set. Switching to the second mode while the vertical direction (second direction) is detected. Therefore, the page data image can be displayed as large as possible.

  In addition, the display device 100 according to the modification includes a display device 100 having an LCD 19 including a first display area and a second display area arranged side by side in a predetermined direction, and a rotation angle about a direction perpendicular to the display surface. When detecting and displaying display data including a plurality of pages, the second mode is selected when the mode is switched to the first mode in response to detection of rotation of a predetermined angle about the direction perpendicular to the display surface. If the mode is switched to the second mode, the mode is switched to the first mode. For this reason, the user can switch the display mode with a simple operation of rotating the display surface.

  When the display direction is set to portrait, when the display mode is the first mode, the first arrangement direction from the second display area to the first display area is displayed with the display data upward, and the display mode is displayed. When the display mode is set to landscape when the second arrangement direction intersecting the first arrangement direction is displayed in the second mode and the display direction is set to landscape, the second arrangement direction is displayed. Is displayed with the display data upward, and when the display mode is the second mode, the first arrangement direction is displayed with the display data upward. Therefore, even when the device direction of the display device 100 is changed, an image can be displayed in accordance with the display direction. As a result, even if the display device 100 is rotated, the image can be displayed so as to face upward.

  Further, when switching from the second mode to the first mode, the page data of the page displayed in the first display area is displayed in the first display area and the second display area, and the first mode is switched to the second mode. If so, the page data of the display page displayed in the first display area and the second display area is displayed in the first display area, and the page data of the next page of the display page is displayed in the second display area. For this reason, when switching from the first mode to the second mode, or when switching from the second mode to the first mode, images displayed before and after the display is switched are associated with each other. Can be displayed in an easy-to-understand manner.

  In the above-described embodiment, the display device 100 has been described. However, the invention is disclosed as a display control method for causing the display device 100 to execute the processing shown in FIG. 6 or FIG. 8 or a display control program for causing the CPU 11 to execute the processing. Needless to say, it can be captured.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

It is a top view of the display apparatus in one of the embodiments of the invention. It is a block diagram which shows an example of the hardware constitutions of a display apparatus. It is a functional block diagram which shows an example of the function which CPU with which a display apparatus is provided has. It is a figure which shows an example of a display screen in case a display direction is set to portrait. It is a figure which shows an example of a display screen in case a display direction is set to a landscape. It is a flowchart which shows an example of the flow of a display control process. It is a functional block diagram which shows an example of the function which CPU with which the display apparatus in a modification has is provided. It is a flowchart which shows an example of the flow of the display control process in a modification.

11 CPU, 13 ROM, 15 RAM, 17 EEPROM, 19 LCD, 21 operation unit, 21A power key, 21B touch panel, 23 communication I / F, 25 external I / F, 25A CD-ROM, 27, 29 Infrared sensor, 31 Bus, 51 Display control unit, 53 Device direction detection unit, 55 Display direction setting unit, 57, 57A Switching unit, 59 Rotation detection unit, 61 Display mode setting unit, 100, 100A Display device.

Claims (9)

Display means including a first display area and a second display area arranged side by side in a predetermined direction;
Display control means for controlling display of the display means;
The direction in which the first display area and the second display area are arranged is either the first direction determined by the relative position between the user and the display device or the second direction intersecting the first direction. An apparatus direction detecting means for detecting whether there is,
When the display control means displays display data including a plurality of pages on the display means, two pages that are continuous with the first mode in which a single page is displayed in the first display area and the second display area. Switching means for switching the display mode to either the first display area or the second mode for displaying each in the second display area,
The switching means switches to the second mode when switched to the first mode and switches to the second mode when the apparatus direction detected by the apparatus direction detecting means changes. Is a display device for switching to the first mode. Further comprising display direction setting means for setting the display direction of the display data to either portrait or landscape,
When the display direction of the display data is set to portrait, the switching unit switches to the second mode while the first direction is detected by the device direction detection unit, and the device direction While the second direction is detected by the detecting means, the mode is switched to the first mode,
When the display direction of the display data is set to landscape, the mode is switched to the first mode while the first direction is detected by the apparatus direction detecting means, and the second direction is detected by the apparatus direction detecting means. The display device according to claim 1, wherein the mode is switched to the second mode while the direction is detected. Display means including a first display area and a second display area arranged side by side in a predetermined direction;
Display control means for controlling display of the display means;
Rotation detection means for detecting a rotation angle about a direction perpendicular to the display surface of the display means;
Either of the first mode for displaying a single page in the first display area and the second display area and the second mode for displaying two consecutive pages in the first display area and the second display area, respectively. Display mode setting means for setting the crab display mode,
When the display control means displays display data including a plurality of pages on the display means, two pages that are continuous with the first mode in which a single page is displayed in the first display area and the second display area. Switching means for switching the display mode to either the first display area or the second mode for displaying each in the second display area,
The switching means switches to the second mode when switched to the first mode in response to detection of rotation of a predetermined angle by the rotation detecting means, and switches to the second mode when switched to the second mode. A display device for switching to the first mode. Display direction setting means for setting the display direction of the display data to either portrait or landscape,
When the display direction is set to portrait, the display control means sets the first arrangement direction from the second display area to the first display area as the upward direction of the display data when the display mode is the first mode. When the display mode is the second mode, the second arrangement direction intersecting with the first arrangement direction is displayed with the display data upward.
When the display direction is set to landscape, the display mode is displayed with the second arrangement direction upward in the display data when the display mode is the first mode, and the first arrangement direction is displayed when the display mode is the second mode. The display device according to claim 3, wherein the data is displayed in an upward direction. The display control means, when switched from the second mode to the first mode, displays page data of a page displayed in the first display area in the first display area and the second display area,
When switching from the first mode to the second mode, page data of the display page displayed in the first display area and the second display area is displayed in the first display area, and the next display page is displayed. The display device according to any one of claims 1 to 4, wherein the page data of the second page is displayed in the second display area. A display control method executed by a display device including a display unit including a first display area and a second display area arranged side by side in a predetermined direction,
The direction in which the first display area and the second display area are arranged is either the first direction determined by the relative position between the user and the display device or the second direction intersecting the first direction. Detecting whether there is,
When displaying display data including a plurality of pages on the display means, the first display area includes two pages continuous with the first mode in which a single page is displayed in the first display area and the second display area. And switching the display mode to any one of the second modes displayed in each of the second display areas,
The step of switching the display mode, when the mode is switched to the first mode, the step of switching to the second mode in response to a change in the device direction detected in the detecting step;
A display control method including a step of switching to the first mode in response to a change in device direction detected in the detecting step when the mode is switched to the second mode. A display control method executed by a display device including a display unit including a first display area and a second display area arranged side by side in a predetermined direction,
Detecting a rotation angle about a direction perpendicular to the display surface of the display means;
When displaying display data including a plurality of pages on the display means, the first display area includes two pages continuous with the first mode in which a single page is displayed in the first display area and the second display area. And switching the display mode to any one of the second modes displayed in each of the second display areas,
The step of switching to the second mode in response to detection of rotation of a predetermined angle in the step of detecting the rotation angle when the mode is switched to the first mode;
And a step of switching to the first mode in response to detection of rotation of a predetermined angle in the step of detecting the rotation angle when the mode is switched to the second mode. A display control program executed by a computer for controlling a display device including a display unit including a first display area and a second display area arranged side by side in a predetermined direction,
The device direction in which the first display region and the second display region are arranged is either a first direction determined by a relative position between a user and the display device or a second direction intersecting the first direction. Detecting whether or not
When displaying display data including a plurality of pages on the display means, the first display area includes two pages continuous with the first mode in which a single page is displayed in the first display area and the second display area. And causing the computer to execute a step of switching a display mode to any one of a second mode displayed in each of the second display areas,
The step of switching the display mode, when the mode is switched to the first mode, the step of switching to the second mode in response to a change in the device direction detected in the detecting step;
A display control program including a step of switching to the first mode in response to a change in the device direction detected in the detecting step when the mode is switched to the second mode; A display control program executed by a computer for controlling a display device including a display unit including a first display area and a second display area arranged side by side in a predetermined direction,
Detecting a rotation angle about a direction perpendicular to the display surface of the display means;
When displaying display data including a plurality of pages on the display means, the first display area includes two pages continuous with the first mode in which a single page is displayed in the first display area and the second display area. And causing the computer to execute a step of switching a display mode to any one of a second mode displayed in each of the second display areas,
The step of switching to the second mode in response to detection of rotation of a predetermined angle in the step of detecting the rotation angle when the mode is switched to the first mode;
A display control program including a step of switching to the first mode in response to detection of rotation of a predetermined angle in the step of detecting the rotation angle when the mode is switched to the second mode;

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