JP2013225231A - Display system and display program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display system and a display program capable of displaying an image on a display screen in a user-friendly manner.SOLUTION: A control part 13 of a display system 1 including a display screen 111 is made to function as: a first image display control part 131 for displaying an image in such a manner that the vertical direction of the image to be displayed coincides with a reference direction; an image deletion control part 132 for deleting the image by the first image display control part 131 when a touch operation is performed with respect to a first, third, or forth side part on the display screen 111; and a second image display control part 133 for when the image is deleted, displaying the image on a second side part side so as to make the vertical direction of the image to be displayed coincide with the reference direction, and displaying the image on a side part side where the touch operation has been performed so as to make the vertical direction of the image to be displayed coincide with a direction from a side part parallel to the side part where the touch operation has been performed toward the side part where the touch operation has been performed.

Description

  The present invention relates to a display system and a display program.

  In the field of display systems including a touch panel and a display, it has been proposed to use the display as a conference desk by installing the display screen horizontally and vertically. When used in this way, for example, the conference material is displayed on the display screen of the display, and the conference participants are seated around the display. Therefore, it is necessary to display the conference material on the display screen so that it can be easily viewed by all conference participants.

  Patent Document 1 describes that a position sensor is provided around a rectangular display used as a conference desk, and the position and number of conference participants are detected by the position sensor. The display system described in Patent Literature 1 divides the display screen into a plurality of subareas according to the position and number of the conference participants detected by the position sensor, and adjusts each conference participant to the viewing direction. Meeting materials are displayed in the sub-area.

JP 2008-269044 A

  In the display system described in Patent Document 1, the display screen is divided by the number of conference participants, and conference materials are displayed. Therefore, when two or more conference participants are viewing in the same direction, more specifically, two or more conference participants are seated on one side of a rectangular display and the other side is parallel to the other side. When the direction toward the side is the viewing direction, the display screen is divided into two or more subareas according to the two or more conference participants, and the conference material is displayed. However, if the number of divisions on the display screen increases, the displayed conference material will be smaller, so if two or more conference participants are viewing in the same direction, one conference material will be displayed larger in that direction. It will be easier to see for those two or more conference participants. Moreover, in the display system described in Patent Document 1, since it is necessary to provide a position sensor around the display, the manufacturing cost increases.

  The present invention has been made to solve such problems, and an object thereof is to provide a display system and a display program capable of displaying an image on a display screen so as to be easily viewed by all users.

The present invention includes a display unit having a rectangular display screen;
A touch panel unit for detecting a touch operation on the display screen;
A control unit for controlling the display unit,
A first image display control unit for displaying an image on the display screen based on image data,
The direction from the upper part to the lower part of the image to be displayed matches the reference direction which is the direction from the first side part of the display screen to the second side part parallel to the first side part. A first image display control unit for displaying an image on the display screen;
When an image is displayed on the display screen by the first image display control unit, any one of the first side, the third side, and the fourth side of the display screen An image erasing control unit for erasing an image displayed by the first image display control unit when a touch operation on the touch panel unit is detected by the touch panel unit;
A second image display control unit configured to display a plurality of images on the display screen based on the image data when an image is deleted by the image deletion control unit;
An imaginary straight line passing through the center of the display screen so that the direction from the upper part to the lower part of the image to be displayed coincides with the reference direction, and is parallel to the first side part An image is displayed on the second side of the extending virtual straight line, and
From the upper part of the image to be displayed in the direction from the side parallel to the side where the touch operation detected by the touch panel unit is performed to the side where the touch operation detected by the touch panel unit is performed, A virtual straight line extending in parallel with the side portion on which the touch operation detected by the touch panel unit is performed so that the direction toward the part matches and passes through the center of the display screen The display system further includes a control unit including a second image display control unit that displays an image on a side portion where the touch operation detected by the touch panel unit is performed.

  Further, in the present invention, when the second image display control unit displays an image on any side of the display screen, a touch operation on a side on which no image is displayed is performed on the touch panel. Display in a direction from the side parallel to the side where the touch operation detected by the touch panel unit is performed toward the side where the touch operation detected by the touch panel unit is performed. A virtual straight line passing through the center of the display screen so that the directions from the upper part to the lower part of the image to be matched coincide with each other, and the side part on which the touch operation detected by the touch panel unit is performed An image is additionally displayed on the side of the side where the touch operation detected by the touch panel unit is performed rather than a virtual straight line extending in parallel with the touch panel.

  Further, in the present invention, when the second image display control unit displays an image on any side of the display screen, the touch operation on the side on which the image is displayed is performed on the touch panel. When being detected by the touch panel, the image displayed on the side where the touch operation detected by the touch panel is performed is erased.

  In addition, the present invention is a display program that causes a computer including a touch panel unit and a display unit to function as the display system.

  According to the present invention, the second image display control unit based on the touch operation displays an image on any one side other than the second side and the second side. When the user is seated on any one side other than the second side and the second side, an image can be displayed on the display screen so that it is easy for all users to see.

  Further, according to the present invention, since the image can be additionally displayed on the side of the side where the image is not displayed by the control of the second image display control unit based on the touch operation, the side where the image is not displayed An image can be displayed on the display screen so that it can be easily viewed by a user who is newly seated on the side.

  Further, according to the present invention, when a user who is seated on the side of the side where the image is displayed leaves, the display is performed on the side of the side by the control of the second image display control unit based on the touch operation. The image that has been saved can be deleted.

  Moreover, according to this invention, the computer provided with a touchscreen part and a display part can be functioned as the said display system.

1 is a schematic diagram showing an appearance of a display system 1. FIG. 1 is a block diagram illustrating a configuration of a display system 1. FIG. It is a figure for demonstrating side E1-side E4. It is a figure for demonstrating a 1st division | segmentation display function. It is a figure for demonstrating the additional display by the 2nd image display control part. It is a figure for demonstrating the setting of the reference direction by the 2nd image display control part. It is a figure for demonstrating a 2nd division | segmentation display function. It is a figure for demonstrating a 2nd division | segmentation display function. 5 is a flowchart showing an operation of the display system 1 when an image is displayed by a first image display control unit 131. 12 is a flowchart showing an operation of the display system 1 when an image is displayed only by the first divided display function of the second image display control unit 133. 12 is a flowchart showing an operation of the display system 1 when an image is displayed only by the second divided display function of the second image display control unit 133. 12 is a flowchart showing an operation of the display system 1 when an image is displayed by the first divided display function and the second divided display function of the second image display control unit 133.

  Below, the display system 1 which is one of the embodiment of this invention is demonstrated. FIG. 1 is a schematic diagram showing an appearance of the display system 1. The display system 1 includes a rectangular display screen 111 having a length of about 300 cm and a width of about 450 cm, for example. The display system 1 is an electronic conference desk provided so that the display screen 111 is horizontally and vertically upward. When a touch operation is performed on an icon displayed on the display screen 111, a window corresponding to the icon is displayed. It is displayed on the display screen 111, or when a touch operation is performed on a drawable area, a graphic corresponding to the touch operation is displayed on the display screen 111.

  Here, the touch operation is a series of operations on the display screen 111 from when the contact to the display screen 111 starts until the contact ends. For example, when the user performs a series of operations such as touching the display screen 111 with a finger or a touch pen and moving the contact point away from the display screen 111 without moving the contact location, this operation is performed on the display screen 111. Operation. For example, when the user performs a series of operations such as touching the display screen 111 with a finger or a touch pen, moving the contact location, and releasing the finger or the touch pen from the display screen 111, the operation is performed on the display screen 111. It is a slide operation.

  As a known system that can be used as an electronic conference desk as described above, a system that includes a conventionally known PC and a display device such as a touch panel integrated display PN-L600B (manufactured by Sharp Corporation) is exemplified. Can do. As this embodiment, what stored the display program which is a program for exhibiting the function of each part 131-133 mentioned later to such a system can be used. As another embodiment of the present invention, the display device may be provided with an IC (Integrated Circuit) chip that exhibits the functions of the units 131 to 133 described later.

  FIG. 2 is a block diagram illustrating a configuration of the display system 1. The display system 1 includes a display unit 11 and a touch panel unit 12 shown in FIGS. 1 and 2, and a control unit 13 shown in FIG.

  The display unit 11 is, for example, a liquid crystal display, an EL (ElectroLuminescence) display, a plasma display, or the like. The display unit 11 is controlled by the control unit 13 to display an image on the rectangular display screen 111.

  The touch panel unit 12 includes a projected capacitive touch panel, a resistive film touch panel, an infrared cut-off detection touch panel, and the like. The touch panel unit 12 detects a touch operation on the display screen 111, acquires information on a target position where the touch operation is performed, that is, information on the touch position, and outputs the information to the control unit 13.

  The control unit 13 is, for example, a control device provided in the PC or the display unit 11, and includes a control arithmetic circuit such as a CPU (Central Processing Unit) and a volatile memory such as a DDR SDRAM (Double Data Rate Synchronous Dynamic Random Access Memory). And a storage circuit including a nonvolatile memory such as a flash ROM (Read Only Memory), an EEPROM (registered trademark), and an HDD (Hard Disk Drive). The display circuit according to the present invention is stored in the storage circuit of the control unit 13, whereby the control unit 13 includes the first image display control unit 131, the image deletion control unit 132, and the second image display control unit 133. Demonstrate the function.

  The first image display control unit 131 displays an image on the display screen 111 based on arbitrary image data. More specifically, the first image display control unit 131 sets the image in a reference direction that is a direction from the first side of the display screen 111 to a second side parallel to the first side. An image is displayed on the display screen 111 based on arbitrary image data so that the directions from the upper part to the lower part match. In the present embodiment, the first image display control unit 131 displays an image in the center of the display screen 111 with a maximum size within a range in which the aspect ratio is not changed based on arbitrary image data.

The side portions are four regions around each side of the rectangular display screen 111. Moreover, the side parts are parallel means that the sides included in the side parts are parallel. The sides E1 to E4 in this embodiment will be described with reference to FIG. The side E1 has two sides, a side e1 constituting a part of the outer periphery of the rectangular display screen 111 and a virtual line segment f1 in the display screen 111 that is parallel to the side e1 and shorter than the side e1. This is an isosceles trapezoidal region in which the angle at both ends of the side e1 is 45 °. The distance d between the side e1 and the line segment f1 is, for example, 1% to 10% of the length in the width direction of the display screen 111. The side E2 is a part of the outer periphery of the rectangular display screen 111, the side e2 parallel to the side e1, and a virtual line segment in the display screen 111 that is parallel to the side e2 and shorter than the side e2. This is an isosceles trapezoidal region in which f2 is two sides and the angle of both ends of the side e2 is 45 °. The distance d between the side e2 and the line segment f2 is, for example, 1% to 10% of the length in the width direction of the display screen 111. In the initial setting of the display system 1, the first side is the side E1, and the second side is the side E2. Thus, the first side portion E1 toward the second side portion E2, the reference direction is a direction perpendicular to the sides e1 is represented by an arrow T ₀ in Figure 3. Also in other figures, the direction represented by arrow T ₀ is the reference direction at the initial setting.

  The side E3 is a part of the outer periphery of the rectangular display screen 111, the side e3 perpendicular to the side e1, and a virtual line segment in the display screen 111 that is parallel to the side e3 and shorter than the side e3. This is an isosceles trapezoidal region where f3 is two sides and the angle of both ends of the side e3 is 45 °. The distance d between the side e3 and the line segment f3 is, for example, 1% to 10% of the length in the width direction of the display screen 111. The side E4 is a part of the outer periphery of the rectangular display screen 111, the side e4 perpendicular to the side e1, and a virtual line segment in the display screen 111 that is parallel to the side e4 and shorter than the side e4. This is an isosceles trapezoidal region in which f4 is two sides and the angle of both ends of the side e4 is 45 °. The distance d between the side e4 and the line segment f4 is, for example, 1% to 10% of the length in the width direction of the display screen 111. In the initial setting of the display system 1, the third side is the side E3 and the fourth side is the side E4.

  When the first image display control unit 131 displays an image on the display screen 111, the image erasure control unit 132 is the first side, the third side, or the fourth side of the display screen 111. When the touch operation with respect to any one of them is detected by the touch panel unit 12, the image displayed by the first image display control unit 131 is deleted.

  The second image display control unit 133 displays an image on the display screen 111 based on the image data used by the first image display control unit 131 before erasing when the image erasing control unit 132 erases the image. Display multiple items. More specifically, the second image display control unit 133 is a virtual straight line passing through the center of the display screen 111 so that the direction from the upper part to the lower part of the image matches the reference direction. Thus, the first side and the third side are displayed so that the image is displayed on the second side from the virtual straight line extending in parallel to the first side and does not overlap the image. In the direction from the side parallel to the side where the touch operation detected by the touch panel unit 12 is performed to the side where the touch operation detected by the touch panel unit 12 is performed, among the fourth sides. The virtual straight line passing through the center of the display screen 111 so that the directions from the upper part to the lower part of the image coincide with each other on the side part on which the touch operation detected by the touch panel unit 12 is performed. Virtual straight line extending in parallel The side portion of the touch operation detected is performed by Rimotatchipaneru unit 12 to display the image. Such a function of the second image display control unit 133 is hereinafter referred to as a “first divided display function”.

The first divided display function will be described in more detail with reference to FIG. For example, it is assumed that the image G1 is displayed as shown in FIG. 4A before the touch operation is performed. In the state of FIG. 4A, when a touch operation is performed on the first side E1, the image G1 is erased by the image erasure control unit 132, and the second image display control unit 133 performs FIG. 4B. An image G2 and an image G3 are displayed as shown in FIG. Image G2 is the reference direction T _0, from the top portion of the image G2 are displayed so that the direction coincides toward the lower part, and passes through the center of the display screen 111, in parallel with the first side portion E1 It is displayed on the second side E2 side from the extending virtual straight line g1. The image G3 is an upper part of the image G3 in a direction from the second side E2 parallel to the first side E1 where the touch operation is performed toward the first side E1 where the touch operation is performed. Touching from a virtual straight line g1 that is displayed so that the direction from the first to the lower part coincides, and extends in parallel with the first side E1 where the touch operation is performed through the center of the display screen 111 It is displayed on the first side E1 side where the operation is performed.

In the state of FIG. 4A, when a touch operation is performed on the third side E3, the image G1 is erased by the image erasure control unit 132, and the second image display control unit 133 performs FIG. 4C. An image G4 and an image G5 as shown in FIG. Image G4 is the reference direction T _0, from the top portion of the image G4 are displayed so that the direction coincides toward the lower part, and passes through the center of the display screen 111, in parallel with the first side portion E1 It is displayed closer to the second side E2 than the extending virtual straight line g2. The image G5 is an upper portion of the image G5 in a direction from the fourth side E4 parallel to the third side E3 where the touch operation is performed toward the third side E3 where the touch operation is performed. Is touched more than a virtual straight line g3 that is displayed so that the directions from the first to the lower part coincide with each other and that passes through the center of the display screen 111 and extends parallel to the third side E3 on which the touch operation is performed. It is displayed on the third side E3 side where the operation is performed.

In the state of FIG. 4A, when a touch operation is performed on the fourth side E4, the image G1 is deleted by the image deletion control unit 132, and the second image display control unit 133 deletes the image G1. An image G6 and an image G7 as shown in FIG. Image G6 is the reference direction T _0, from the top portion of the image G6 are displayed so that the direction coincides toward the lower part, and passes through the center of the display screen 111, in parallel with the first side portion E1 It is displayed on the second side E2 side from the extending virtual straight line g4. The image G7 is an upper portion of the image G7 in a direction from the third side E3 parallel to the fourth side E4 on which the touch operation is performed toward the fourth side E4 on which the touch operation is performed. Is touched more than a virtual straight line g5 that is displayed so that the direction toward the lower part matches and that passes through the center of the display screen 111 and extends parallel to the fourth side E4 on which the touch operation is performed. It is displayed on the fourth side E4 side where the operation is performed.

  As shown in FIG. 4, when the second image display control unit 133 displays an image by the first divided display function, the second image display control unit 133 displays a line indicating the outer periphery of each side along with each image. By displaying this line, it is possible to visually confirm the side portion.

  Each image displayed on the display screen 111 by the second image display control unit 133 has the same aspect ratio as the image displayed on the display screen 111 by the first image display control unit 131, and the size of each image is the same. It is. Each image is displayed along the side included in the side on which each image is displayed, and the center of the side and the center of the image coincide with each other in a direction parallel to the side. Is done. For example, the image G5 of FIG. 4C is displayed along the side e3 included in the side E3 on the side where the image G5 is displayed, and in the direction parallel to the side e3, The center of the image G5 is displayed so as to match.

  The second image display control unit 133 displays each image so as to be the maximum size within a range satisfying the above conditions. Therefore, as shown in FIG. 4B and FIG. 4C, the size of the image displayed by the second image display control unit 133 may differ depending on the side where the touch operation is performed.

  The second image display control unit 133 exhibits the first divided display function when a touch operation is performed on the side portion, and the touch operation may be any type. However, it is inconvenient if the first divided display function is exhibited only by lightly touching the display screen 111, so that the first divided display function is exhibited only when a specific touch operation is performed. It may be. For example, the first divided display function may be exhibited when a touch operation (long-press touch operation) in which touching the same part for several seconds is performed on any side. Also, for example, when a touch operation is first performed on any side, the direction from the side parallel to the side to the side where the touch operation is performed is the direction from top to bottom. When a character such as “add display” is displayed in the side where the touch operation is performed, and the second touch operation is performed on the displayed character, the first divided display function is exhibited. You may be made to do.

  The second image display control unit 133 can additionally display an image on the display screen 111 as the first divided display function. More specifically, when the second image display control unit 133 displays an image on the display screen 111, when the touch operation on the side portion on which the image is not displayed is detected by the touch panel unit 12. In addition, from the upper part of the image to the lower part in the direction from the side parallel to the side where the touch operation detected by the touch panel unit 12 is performed to the side where the touch operation detected by the touch panel unit 12 is performed. From a virtual straight line that passes through the center of the display screen 111 and extends in parallel to the side portion on which the touch operation detected by the touch panel unit 12 is performed so that the direction toward the screen matches. Also, an image can be additionally displayed on the side where the touch operation detected by the touch panel unit 12 is performed.

  The additional display by the second image display control unit 133 will be described in more detail with reference to FIG. For example, it is assumed that the images G4 and G5 are displayed before the touch operation is performed as shown in FIG. In the state of FIG. 4C, when a touch operation is performed on the fourth side E4 that is the side on which no image is displayed, the second image display control unit 133 causes the second image display control unit 133 to perform FIG. An image G8, an image G9, and an image G10 as shown in FIG. The images G8 and G9 are the same images as the images G4 and G5. The image G10 is a lower side from the upper part of the image G10 in a direction from the third side E3 parallel to the fourth side E4 on which the touch operation is performed toward the fourth side E4 on which the touch operation is performed. The touch operation is performed more than a virtual straight line g6 that is displayed so that the directions toward the portions coincide with each other and that passes through the center of the display screen 111 and extends in parallel to the fourth side E4 on which the touch operation is performed. It is displayed on the performed fourth side E4 side.

  Further, for example, it is assumed that images G8 to G10 are displayed as shown in FIG. 5A before the touch operation is performed. In the state shown in FIG. 5A, when a touch operation is performed on the first side E1 that is the side on which no image is displayed, the second image display control unit 133 causes the first side E1 to display FIG. An image G11, an image G12, an image G13, and an image G14 as shown in FIG. The image G11, the image G12, and the image G13 are the same images as the image G8, the image G9, and the image G10. The image G14 is a lower side from the upper part of the image G14 in a direction from the second side E2 parallel to the first side E1 where the touch operation is performed toward the first side E1 where the touch operation is performed. The touch operation is displayed more than a virtual straight line g7 that is displayed so that the directions toward the portions coincide with each other and that passes through the center of the display screen 111 and extends parallel to the first side E1 on which the touch operation is performed. It is displayed on the performed first side E1 side.

  In addition, when it is necessary to change the size of each image being displayed during the additional display, the second image display control unit 133 erases all the images and then displays each image. For example, it is assumed that images G2 and G3 are displayed as shown in FIG. 4B before the touch operation is performed. In the state of FIG. 4B, when a touch operation is performed on the third side E3 that is the side on which no image is displayed, the second image display control unit 133 performs the touch operation shown in FIG. An image G15, an image G16, and an image G17 as shown in FIG. The image G17 is a lower side from the upper part of the image G17 in a direction from the fourth side E4 parallel to the third side E3 on which the touch operation is performed toward the third side E3 on which the touch operation is performed. The touch operation is displayed more than the virtual straight line g8 that is displayed so that the directions toward the portions coincide with each other and passes through the center of the display screen 111 and extends in parallel with the third side E3 on which the touch operation is performed. It is displayed on the third side E3 side. The image G15 and the image G16 correspond to the image G2 and the image G3, respectively, are images smaller than the image G2 and the image G3, and are displayed after the image G2 and the image G3 are erased.

  When the second image display control unit 133 displays an image on the display screen 111 and the touch operation on the side portion on which the image is displayed is detected by the touch panel unit 12, the second image display control unit 133 performs The image displayed on the side where the detected touch operation is performed is deleted. More specifically, when the second image display control unit 133 displays an image on the display screen 111 with the first divided display function, the second image display control unit 133 displays the image on the side where the image is displayed with the first divided display function. When a touch operation on a portion of the side that does not overlap with the portion where the image is displayed is detected by the touch panel unit 12, the touch operation detected by the touch panel unit 12 is displayed on the side of the side. Erase the current image.

  The image erasure by the second image display control unit 133 will be described in more detail with reference to FIGS. For example, it is assumed that images G8 to G10 are displayed before the touch operation is performed as shown in FIG. In the state of FIG. 5A, when a touch operation is performed on a portion of the third side E3 that is the side on which the image is displayed, that does not overlap the image G9, the second image display control is performed. The state shown in FIG. In FIG. 4D, the image G9 is deleted, and the image G6 and the image G7 are displayed. The images G6 and G7 are the same images as the images G8 and G10.

  Further, for example, it is assumed that images G11 to G14 are displayed as shown in FIG. 5B before the touch operation is performed. In the state shown in FIG. 5B, when a touch operation is performed on a portion of the fourth side E4 that is the side on which the image is displayed, that does not overlap the image G13, the second image display control is performed. The state shown in FIG. In FIG. 5C, the image G13 is deleted, and the image G15, the image G16, and the image G17 are displayed. The image G15, the image G16, and the image G17 are the same images as the image G11, the image G14, and the image G12.

  Note that the second image display control unit 133 displays each image after erasing all the images once when it is necessary to change the size of each image being displayed. For example, it is assumed that images G15 to G17 are displayed as shown in FIG. 5C before the touch operation is performed. In the state of FIG. 5C, when a touch operation is performed on the third side E3 that is the side on which the image is displayed, the second image display control unit 133 performs the touch operation on the third side E3. It will be in the state shown in In FIG. 4B, the image G17 is deleted, and the image G2 and the image G3 are displayed. The images G2 and G3 correspond to the images G15 and G16, respectively, are larger than the images G15 and G16, and are displayed after the images G15 and G16 are erased.

  The second image display control unit 133 performs the first division in a state where two images are displayed by the first divided display function and no image is displayed by the second divided display function described later. When the image is erased as described above by a touch operation on the side where the image is displayed by the display function, all the images are erased and the first image display control unit 131 displays the image. More specifically, the second image display control unit 133 has two images being displayed by the first divided display function and no image is displayed by the second divided display function described later. When the image is erased as described above by the touch operation on the side where the image is displayed by the first divided display function, the two on the side where the image is displayed by the first divided display function Among the two sides, the touch operation is performed from the two sides on the side where the image is displayed by the first split display function from the side parallel to the side where the touch operation is not performed. The direction toward the side that is not present is set as the reference direction, all images are erased, and the first image display control unit 131 displays the image.

The setting of the reference direction by the second image display control unit 133 will be described in more detail with reference to FIGS. 4 and 6. For example, it is assumed that images G2 and G3 are displayed as shown in FIG. 4B before the touch operation is performed. In the state of FIG. 4B, when a touch operation is performed on a portion that does not overlap the image G2 in the second side E2 that is the side on which the image is displayed, the second image display control is performed. the parts 133, the direction of arrow _{T 1} shown in FIG. 6 (a) is set to the reference direction. In FIG. 6A, the image G2 and the image G3 are deleted, and the image G18 is displayed. Image G18 based on the reference direction T _1, a image displayed by the first image display control unit 131.

For example, it is assumed that images G4 and G5 are displayed as shown in FIG. 4C before the touch operation is performed. In the state of FIG. 4C, when a touch operation is performed on a portion that does not overlap the image G4 in the second side E2 that is the side on which the image is displayed, the second image display control is performed. the parts 133, the direction of the arrow _{T 2} shown in FIG. 6 (b) is set to the reference direction. In FIG. 6B, the image G4 and the image G5 are deleted, and the image G19 is displayed. Image G19 based on the reference direction T _2, which is an image displayed by the first image display control unit 131.

  When the reference direction is changed as in FIGS. 6A and 6B, the second image display control unit 133 warns in advance the side where the touch operation is performed. A sentence may be displayed. Then, when a touch operation is performed on the warning text, the reference direction may be changed and the image may be deleted.

  The second image display control unit 133 erases the image when a touch operation is performed on the side portion on which the image is displayed, and the touch operation may be any type. . However, since it is inconvenient if the image is erased by simply touching the display screen 111, the image may be erased only when a specific touch operation is performed. For example, the image is erased when a touch operation (long press touch operation) is performed in which the same portion is touched for a few seconds in a portion of the side where the image is displayed that does not overlap the image. You may do it. In addition, for example, when a touch operation is first performed on a portion of the side where the image is displayed that does not overlap the image, the touch operation is performed from a side parallel to the side. The direction toward the side is the direction from top to bottom, and characters such as “Erase” are displayed in the part of the side where the touch operation is performed that does not overlap the image. The image may be erased when the second touch operation is performed.

  The second image display control unit 133, when an image is displayed by the first divided display function, when a touch operation (slide operation) for sliding on any image is detected by the touch panel unit 12. The image can be displayed by the second divided display function. More specifically, the second image display control unit 133 performs a slide operation on any of the images displayed by the first divided display function when the image is displayed by the first divided display function. Is detected by the touch panel unit 12, as a second divided display function, first, the image on which the slide operation is performed is erased, and the rectangular area where the image is displayed is changed to the second divided display area. Set to. Next, the second image display control unit 133 sets a virtual straight line that divides the second divided display area into two from the start point and the end point of the slide operation, and the second image display control unit 133 divides the second divided display region into two by the virtual straight line. An image is displayed in each of the two divided display areas.

  Here, the virtual straight line set from the start point and the end point of the slide operation is a straight line passing through the start point and the end point. However, in a two-dimensional coordinate system having a reference direction and a direction perpendicular to the reference direction as a coordinate axis, an angle formed by a straight line passing through the start point and the end point and one of the coordinate axes is less than a predetermined angle, for example, less than 5 °. In this case, a straight line passing through the midpoint of the line segment that is parallel to the coordinate axis and passes through the start point and the end point is set as a virtual straight line.

  In the image displayed in one (or the other) of the second divided display area divided into two by the virtual straight line, the direction from the upper part to the lower part of the image is on the side on the second divided display area side. It is displayed so as to coincide with the direction from the parallel side toward the side on the second divided display region side.

  The size of each image displayed in each of the second divided display areas divided into two by the virtual straight line is the reference direction of the virtual straight line and the two diagonal lines of the rectangular second divided display area. In the two-dimensional coordinate system having a direction perpendicular to the reference direction as a coordinate axis, the virtual straight line is determined from the intersection with a diagonal line having an opposite inclination direction. More specifically, the size of the image displayed in one of the second divided display areas divided into two by the virtual straight line is as follows: the virtual straight line and the two diagonal lines of the rectangular second divided display area In the two-dimensional coordinate system having a reference direction and a direction perpendicular to the reference direction as a coordinate axis, the second is divided into two by an intersection of a diagonal line whose inclination direction is opposite to the virtual straight line and a virtual straight line. Among the vertices of the rectangular second divided display area included on one side of the divided display area, the aspect ratio is not changed in a rectangle (one inscribed rectangle) passing through the diagonal line having the opposite inclination direction. The maximum size that can be entered within the range. Further, the size of the image displayed on the other side of the second divided display area divided into two by the virtual straight line is the reference line between the virtual straight line and the two diagonal lines of the rectangular second divided display area. In the two-dimensional coordinate system having the direction perpendicular to the reference direction and the reference axis as a coordinate axis, the intersection of the diagonal line whose inclination direction is opposite to the virtual straight line and the second divided display area divided into two by the virtual straight line Of the vertices of the rectangular second divided display area included on the other side, the rectangles that pass through the vertices through which the diagonal direction is opposite (the inscribed rectangle on the other side) fall within the range in which the aspect ratio is not changed. The maximum size that can be.

  The image displayed in one (or the other) of the second divided display area divided into two by the virtual straight line is displayed so that the center of the inscribed rectangle on one side (or the other side) coincides with the center of the image. Is done.

  When the virtual straight line extends in parallel with the reference axis and the coordinate axis of the two-dimensional coordinate system having the direction perpendicular to the reference direction as the coordinate axis, one of the second divided display areas divided into two by the virtual straight line. The size of the image displayed on the screen is divided into two by the virtual straight line, the intersection of one of the two diagonal lines of the rectangular second divided display area, and the virtual straight line. Of the vertices of the rectangular second divided display area included on one side of the second divided display area, the aspect ratio does not change within a rectangle (one side rectangle) passing through the vertex through which the one diagonal line passes. The maximum size that can be entered. In addition, when the virtual straight line extends in parallel to the coordinate axis of the two-dimensional coordinate system having the reference direction and the direction perpendicular to the reference direction as the coordinate axis, the other of the second divided display areas divided into two by the virtual straight line The size of the image displayed on the screen is divided into two by the virtual straight line, the intersection of one of the two diagonal lines of the rectangular second divided display area, and the virtual straight line. Of the vertices of the rectangular second divided display area included on the other side of the second divided display area, the aspect ratio does not change within the rectangle passing through the vertex through which the one diagonal line passes (the other side rectangle). The maximum size that can be entered.

  When the virtual straight line extends in parallel to the coordinate axis of the two-dimensional coordinate system having the reference direction and a direction perpendicular to the reference direction as the coordinate axis, one of the second divided display areas divided into two by the virtual straight line ( The image displayed on the other side is the same shape as the one (or the other) side rectangle, and the center of the rectangle whose center coincides with the center of the second divided display area in the direction in which the virtual straight line extends. Are displayed so that the center of the image matches.

  The second divided display function will be described in more detail with reference to FIGS. 4, 7A, and 7B. For example, it is assumed that images G2 and G3 are displayed as shown in FIG. 4B before the slide operation is performed. In the state of FIG. 4B, when the slide operation K1 is performed on the image G2, as shown in FIG. 7A, the second image display control unit 133 causes the start point P1 and the end point of the slide operation K1. A virtual straight line L1 passing through P2 is set as a virtual straight line for dividing the second divided display area Q1, which is a rectangular area where the image G2 is displayed, into two, and the virtual straight line L1 and An intersection point P3 with the diagonal line L2 of the second divided display area Q1 is calculated. Then, as shown in FIG. 7A (b), the second image display control unit 133 passes through the intersection P3 and the diagonal line L2 in one area Q11 of the second divided display area Q1 divided into two by the virtual straight line L1. One inscribed rectangle R1 passing through the vertex P4 is set, and the image G20 is displayed in the one inscribed rectangle R1. Further, as shown in FIG. 7A (b), the second image display control unit 133 passes through the intersection point P3 and the diagonal line L2 in the other region Q12 of the second divided display region Q1 divided into two by the virtual straight line L1. The other inscribed rectangle R2 passing through the vertex P5 is set, and the image G21 is displayed in the other inscribed rectangle R2.

Further, for example, it is assumed that images G2 and G3 are displayed as shown in FIG. 4B before the slide operation is performed. In the state of FIG. 4B, when the slide operation K2 is performed on the image G2 as shown in FIG. 7B (c), the second image display control unit 133 sets the start point P6 and the end point of the slide operation K2. through the midpoint P8 of line segment that passes through P7, a straight line L3 virtual parallel to the reference direction T _0, the second divided display area Q2 2 for dividing the a rectangular area where the image G2 is displayed And the intersection P9 between the virtual straight line L3 and the diagonal line L4 of the second divided display area Q1 is calculated. Then, as shown in FIG. 7B (d), the second image display control unit 133 passes through the intersection point P9 and the diagonal line L4 in one area Q21 of the second divided display area Q2 divided into two by the virtual straight line L3. One side rectangle R3 passing through the vertex P10 is set, and the rectangle R4 has the same shape as the one side rectangle R3, and the center of the rectangle R4 is the center of the second divided display area Q2 in the extending direction of the virtual straight line L3. Is set, and the image G22 is displayed in the rectangle R4. Further, as shown in FIG. 7B (d), the second image display control unit 133 passes through the intersection point P9 and the diagonal line L4 in the other region Q22 of the second divided display region Q2 divided into two by the virtual straight line L3. The other side rectangle R5 passing through the vertex P11 is set, and the rectangle R6 has the same shape as the other side rectangle R5, and the center of the rectangle R6 is the center of the second divided display area Q2 in the extending direction of the virtual straight line L3. Is set, and the image G23 is displayed in the rectangle R6.

  The second image display control unit 133 displays the image when the touch operation on the edge of the image is detected by the touch panel unit 12 when the image is displayed on the display screen 111 by the second divided display function. And the image is displayed by the first divided display function. More specifically, the second image display control unit 133 displays two images in the case where two images are displayed in one second divided display area in the display screen 111 by the second divided display function. Touch operation on the side of one image that is closest to the side of the other image, or the side of the other image of two images that is closest to the side of one image When the touch operation on the side to be detected is detected by the touch panel unit 12, the two images are erased, the image is displayed in the second divided display area by the first divided display function, and the second divided display area is set. Is released.

  Deletion of an image displayed by the second divided display function by the second image display control unit 133 will be described in more detail with reference to FIGS. 4, 7A, and 7B. For example, it is assumed that the images G20 and G21 are displayed by the second divided display function as shown in FIG. 7A (b) before the touch operation is performed. In the state of FIG. 7A (b), when a touch operation is performed on the side h1 or side h2 of the image G20 or the side h3 or side h4 of the image G21, the second image display control unit 133 performs the operation shown in FIG. ). In FIG. 4B, the images G20 and G21 displayed by the second divided display function are deleted, and the image G2 is displayed by the first divided display function.

  For example, it is assumed that the images G22 and G23 are displayed by the second divided display function as shown in FIG. 7B (d) before the touch operation is performed. In the state of FIG. 7B (d), when the touch operation is performed on the side h5 of the image G22 or the side h6 of the image G23, the second image display control unit 133 enters the state shown in FIG. . In FIG. 4B, the images G22 and G23 displayed by the second divided display function are deleted, and the image G2 is displayed by the first divided display function.

  The touch operation for erasing the image displayed by the second split display function may be a touch operation with a human finger or a touch operation with a touch pen. It is preferable that the touch operation is performed by erasing the blackboard. The second image display control unit 133 determines that the touch operation is a blackboard eraser when the area of the touched portion is larger than a predetermined threshold. The second image display control unit 133 is displayed by a touch operation of sliding on the side of the image displayed by the second divided display function, for example, by blackboard erasing, or by the second divided display function. When a touch operation is performed by long-pressing on the side of the current image, the image displayed by the second split display function is deleted.

  The operation of the display system 1 configured as described above is shown in the flowcharts of FIGS. 8 corresponds to the case where the image is displayed by the first image display control unit 131, and FIG. 9 illustrates the case where the image is displayed only by the first divided display function of the second image display control unit 133. 10 corresponds to the case where the image is displayed only by the second divided display function of the second image display control unit 133. FIG. 11 shows the first image of the second image display control unit 133. This corresponds to a case where an image is displayed by the split display function and the second split display function.

  As shown in FIG. 8, when a touch operation is performed on the display screen 111 when an image is displayed by the first image display control unit 131, the image erasure control unit 132 performs the touch operation in step A1. It is determined whether or not the part is a side other than the second side. If it is a side other than the second side, the process proceeds to step A2, and otherwise, the process ends.

  In step A2, the image deletion control unit 132 deletes the image displayed by the first image display control unit 131, and the second image display control unit 133 uses the first divided display function to execute the second side portion. The image is displayed on the side and the side on which the touch operation is performed, and then the process is terminated.

  As shown in FIG. 9, when a touch operation is performed on the display screen 111 when an image is displayed only by the first divided display function of the second image display control unit 133, the second image display is performed in step B1. The control unit 133 determines whether or not the place where the touch operation is performed is a side portion on the side where no image is displayed. If it is the side on the side where no image is displayed, the process proceeds to step B2, and otherwise, the process proceeds to step B3. In step B2, the second image display control unit 133 causes the first divided display function to additionally display an image on the side where the touch operation has been performed, and then ends the process.

  In Step B3, the second image display control unit 133 determines whether or not the place where the touch operation is performed is a side part on the side where the image is displayed by the first divided display function. If it is the side on the side where the image is displayed by the first divided display function, the process proceeds to step B4, and otherwise the process proceeds to step B5. In step B4, the second image display control unit 133 deletes the image displayed by the first divided display function on the side where the touch operation is performed, and then ends the process.

  In step B5, the second image display control unit 133 determines whether or not the touch operation performed is a slide operation on the image displayed by the first split display function. If it is a slide operation on the image displayed by the first split display function, the process proceeds to step B6, and otherwise the process is terminated. In step B6, the second image display control unit 133 sets the area where the image on which the slide operation has been performed is displayed as the second divided display area, deletes the image, and uses the second divided display function to Two images are displayed in the second divided display area, and then the process ends.

  As shown in FIG. 10, when the touch operation is performed on the display screen 111 when the image is displayed only by the second divided display function of the second image display control unit 133, the second image display is performed in Step C1. The control unit 133 determines whether or not the place where the touch operation is performed is a side portion on the side where no image is displayed. If it is the side on the side where no image is displayed, the process proceeds to Step C2, and otherwise, the process proceeds to Step C3. In Step C2, the second image display control unit 133 causes the first divided display function to additionally display an image on the side where the touch operation has been performed, and then ends the process.

  In Step C3, the second image display control unit 133 determines whether or not the place where the touch operation is performed is an end portion of the image displayed by the second divided display function. If it is the edge of the image displayed by the second divided display function, the process proceeds to step C4, and otherwise the process is terminated. In Step C4, the second image display control unit 133 deletes all the images displayed in the second divided display area where the touched image is displayed, and the second divided display area displays the second divided display area. The image is displayed by the one divided display function, the setting of the second divided display area is canceled, and then the process is terminated.

  As illustrated in FIG. 11, when a touch operation is performed on the display screen 111 when an image is displayed by the first divided display function and the second divided display function of the second image display control unit 133, step D1 is performed. Then, the second image display control unit 133 determines whether or not the place where the touch operation is performed is a side part on the side where no image is displayed. If it is the side on the side where no image is displayed, the process proceeds to step D2, and otherwise, the process proceeds to step D3. In Step D2, the second image display control unit 133 causes the first divided display function to additionally display an image on the side where the touch operation is performed, and then ends the process.

  In step D3, the second image display control unit 133 determines whether or not the place where the touch operation is performed is a side part on the side where the image is displayed by the first divided display function. If it is the side on the side where the image is displayed by the first divided display function, the process proceeds to step D4, and otherwise the process proceeds to step D5. In step D4, the second image display control unit 133 deletes the image displayed by the first divided display function on the side where the touch operation is performed, and then ends the process.

  In step D5, the second image display control unit 133 determines whether or not the performed touch operation is a slide operation on the image displayed by the first divided display function. If it is a slide operation on the image displayed by the first divided display function, the process proceeds to step D6, and otherwise, the process proceeds to step D7. In Step D6, the second image display control unit 133 sets the area where the image on which the slide operation is performed is displayed as the second divided display area, deletes the image, and uses the second divided display function to Two images are displayed in the second divided display area, and then the process ends.

  In step D7, the second image display control unit 133 determines whether or not the place where the touch operation is performed is an end portion of the image displayed by the second divided display function. If it is the edge of the image displayed by the second divided display function, the process proceeds to step D8, and otherwise, the process ends. In Step D8, the second image display control unit 133 deletes all the images displayed in the second divided display area where the touched image is displayed, and the second divided display area displays the second divided display area. The image is displayed by the one divided display function, the setting of the second divided display area is canceled, and then the process is terminated.

  According to the display system 1 as described above, by the first divided display function controlled by the second image display control unit 133 based on the touch operation, other than the second side and the second side of the display screen 111. Since an image is displayed on each one of the sides, when the user is seated on any one side other than the second side and the second side, An image can be displayed on the display screen 111 so that the user can easily see it.

  In addition, according to the display system 1, an image can be additionally displayed on the side of the side where no image is displayed by the first divided display function controlled by the second image display control unit 133 based on the touch operation. Therefore, the image can be displayed on the display screen 111 so that it can be easily viewed by the user who is newly seated on the side where the image is not displayed.

  Further, according to the display system 1, when a user who is seated on the side of the side where the image is displayed leaves, the side of the side is controlled by the second image display control unit 133 based on the touch operation. The image displayed on the side can be deleted.

  Moreover, according to the display system 1, in a state where an image is displayed by the first divided display function of the second image display control unit 133, a slide operation is performed on the image, whereby the second image display control unit The second divided display function 133 can erase the image, divide the area where the image was displayed (second divided display area), and display the image in each of the divided areas. Therefore, an image can be displayed in various modes by combining the first divided display function and the second divided display function.

  Further, according to the display system 1, the second divided display area by the second image display control unit 133 is divided into two by the virtual straight line based on the start point and the end point of the slide operation. The display screen 111 can be arbitrarily and easily divided without performing a slide operation from end to end of the display screen 111. The second image display control unit 133 can display an image in each of the arbitrarily divided second divided display areas.

  In addition, according to the display system 1, the second divided display function by the second image display control unit 133 causes the virtual straight line based on the start point and the end point of the slide operation and the diagonal line of the rectangular second divided display area. Since the size of the image displayed in each of the second divided display areas divided into two is determined from the intersection, the size of each image can be determined by a slide operation. In addition, by determining the size of each image using the intersections in this way, an image similar to the original image displayed in the second divided display area by the first divided display function can be obtained. It can be easily displayed by the split display function.

  Further, according to the display system 1, the second divided display area is canceled by performing a touch operation on the edge of the image displayed in the second divided display area by the second divided display function, An image can be displayed by one division display function.

  The display program stored in the control unit 13 of the display system 1 is a program that causes a computer including the display unit and the touch panel unit to function as the display system 1. This display program can be recorded on a conventionally known computer-readable recording medium.

  By recording the display program on a recording medium, it is possible to provide a portable recording medium on which a program code (execution format program, intermediate code program, source program, etc.) for executing processing based on the display program is recorded. it can.

  The recording medium may be a memory for the microcomputer to perform processing, for example, a program medium such as a ROM (Read Only Memory), or may be inserted into a program reading device provided as an external storage device in the computer. It may be a program medium that can be read.

  The program stored in the recording medium may be a system in which the microprocessor accesses the recording medium and executes the program, or the microprocessor reads the program code from the recording medium, and the read program code is the micro program. The program may be executed by being downloaded to the program storage area of the computer. It is assumed that this download program is stored in the main device in advance.

  Here, the program medium is a recording medium configured to be separable from the main body, and includes a tape system such as a magnetic tape and a cassette tape, a magnetic disk such as a flexible disk and a hard disk, and a CD-ROM (Compact Disc-Read Only Memory). ), Optical disk such as MO (Magneto Optical disc), MD (Mini Disc), DVD (Digital Versatile Disc), card system such as IC card (including memory card), optical card, mask ROM, EPROM ( It may be a medium carrying a fixed program code including a semiconductor memory such as an Erasable Programmable Read Only Memory), an EEPROM (registered trademark), or a flash ROM.

  In addition, if the computer has a system configuration capable of connecting to a communication network including the Internet, the recording medium may be a medium that dynamically carries the program code so as to download the program code from the communication network. When the program is downloaded from the communication network as described above, the download program is stored in the main device in advance or installed from another recording medium. The display program can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.

DESCRIPTION OF SYMBOLS 1 Display system 11 Display part 12 Touch panel part 13 Control part 111 Display screen 131 1st image display control part 132 Image deletion control part 133 2nd image display control part

Claims (4)

A display unit having a rectangular display screen;
A touch panel unit for detecting a touch operation on the display screen;
A control unit for controlling the display unit,
A first image display control unit for displaying an image on the display screen based on image data,
The direction from the upper part to the lower part of the image to be displayed matches the reference direction which is the direction from the first side part of the display screen to the second side part parallel to the first side part. A first image display control unit for displaying an image on the display screen;
When an image is displayed on the display screen by the first image display control unit, any one of the first side, the third side, and the fourth side of the display screen An image erasing control unit for erasing an image displayed by the first image display control unit when a touch operation on the touch panel unit is detected by the touch panel unit;
A second image display control unit configured to display a plurality of images on the display screen based on the image data when an image is deleted by the image deletion control unit;
An imaginary straight line passing through the center of the display screen so that the direction from the upper part to the lower part of the image to be displayed coincides with the reference direction, and is parallel to the first side part An image is displayed on the second side of the extending virtual straight line, and
From the upper part of the image to be displayed in the direction from the side parallel to the side where the touch operation detected by the touch panel unit is performed to the side where the touch operation detected by the touch panel unit is performed, A virtual straight line extending in parallel with the side portion on which the touch operation detected by the touch panel unit is performed so that the direction toward the part matches and passes through the center of the display screen A display system comprising: a control unit including a second image display control unit that causes an image to be displayed on a side where a touch operation detected by the touch panel unit is performed.   When the second image display control unit displays an image on any side of the display screen, the touch operation on the side on which no image is displayed is detected by the touch panel unit. The image to be displayed in the direction from the side parallel to the side where the touch operation detected by the touch panel unit is performed to the side where the touch operation detected by the touch panel unit is performed. A virtual straight line passing through the center of the display screen so that the directions from the part to the lower part coincide with each other and extending parallel to the side part on which the touch operation detected by the touch panel part is performed 2. The display according to claim 1, wherein an image is additionally displayed on the side of the side where the touch operation detected by the touch panel unit is performed rather than a straight line. Stem.   When the second image display control unit displays an image on any side of the display screen, the touch operation on the side on which the image is displayed is detected by the touch panel unit. 3. The display system according to claim 1, wherein an image displayed on a side portion where a touch operation detected by the touch panel unit is performed is erased.   A display program that causes a computer including a touch panel unit and a display unit to function as the display system according to claim 1.