JP2009211547A - Display system, display device, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To change the display contents of a plurality of display devices according to the operation of an operator, and to achieve the weight reduction of each display device. <P>SOLUTION: A master display device stores the associative relation of picture ID assigned to each of display devices and the image data of an image to be displayed on each display device, and to discriminate the operation contents of an operator based on an operation signal output from a touch sensor, and changes the associative relation according to the discriminated operation contents. The master display device makes a memory display body display an image corresponding to the image data associated with the picture ID of a self-device, and supplies a power to a salve display device, and transmits the image data associated with the picture ID of the slave display device. The slave display device receives the power supplied from the master display device, and receives the image data transmitted to the self-device destination by using the power, and makes the memory display body of the self-device display an image corresponding to the image data. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a technique for displaying an image on a plurality of display devices.

A technique is known in which a plurality of display devices called electronic paper are connected to display a plurality of screens simultaneously. For example, Patent Document 1 proposes a technique for displaying a page representing a table of contents and a selected page using two screens connected so as to be spread apart. Patent Document 2 proposes a technique of connecting and using a plurality of display devices so as to have a shape imitating a book.
JP 2001-101202 A Japanese Patent Laid-Open No. 2002-221918

By the way, in the techniques described in Patent Documents 1 and 2, the operator can view only two screens at the same time. However, there are cases where more screens are desired to be viewed simultaneously.
In such a case, the screen of one display device and the screen of the other display device are switched according to a simple operation by the operator, or page feed of a series of screens composed of multiple pages is linked. It is convenient to be done. However, there are cases where the display device being browsed by the operator and the display device being operated by the operator are different only by enabling the above-described operation only on a specific display device among the plurality of display devices. This is inconvenient. Therefore, it is desirable to implement an operation function in any display device. On the other hand, if many functions are equally installed in each display device, the entire display device group becomes heavy and the portability becomes poor. Therefore, it is necessary to make efforts to reduce the weight of the display device or the display device group.
It is an object of the present invention to change the display contents of a plurality of display devices in cooperation with an operator's operation, and to reduce the weight of each display device.

  The present invention includes a first display device and a plurality of second display devices, and each of the first display device and each of the second display devices includes a plurality of display elements. Power is supplied during the period from when the is driven until the image is displayed, and after the image is displayed, display means that continues to display the image even when power is not supplied, and operation by the operator is detected. And an operation detecting means for outputting an operation signal corresponding to the operation, wherein the first display device includes identification information assigned to each of the first display device and the second display device; The storage means for storing the correspondence with the image data of the image displayed on each display device, and the operation signal output from the operation detection means of the own device or the second display device The operation of the operator based on the operation signal An operation content determining means for determining the content, and a correspondence relationship changing means for changing the correspondence stored in the storage means and storing it in the storage means according to the operation content determined by the operation content determining means; First display control means for driving the display element of the display means of the own device, and causing the display means to display an image corresponding to the image data associated with the identification information of the own device by the storage means; And transmitting means for supplying power to the second display device and transmitting image data associated with the identification information of the second display device to the second display device by the storage means. Each of the second display devices receives power supplied from the transmission means of the first display device, and uses the received power to transmit image data transmitted to the device itself. And the display element of the display unit of the own apparatus is driven using the power received by the receiving unit, and an image corresponding to the image data received by the receiving unit is displayed on the display unit. A display system comprising a second display control means is provided. Accordingly, the display contents of the plurality of display devices can be changed in cooperation with each other according to the operation of the operator, and the weight of each display device can be reduced.

  In addition, the present invention includes a plurality of display elements, and power is supplied during a period from when the display elements are driven until an image is displayed. After the image is displayed, power is not supplied. Assigned to each of the display unit that continues to display the image, the operation detection unit that detects an operation by the operator and outputs an operation signal according to the operation, and the display device other than the own device and the own device. Storage means for storing the correspondence between the identification information and the image data of the image displayed on each display device, and the operation signal output from the operation detection means of the own device or the other display device, An operation content determination unit that determines the operation content of the operator based on the acquired operation signal, and the correspondence stored in the storage unit is changed according to the operation content determined by the operation content determination unit. Driving the correspondence change unit to be stored in the storage unit and the display element of the display unit, and the storage unit stores an image corresponding to the image data associated with the identification information of the own device on the display unit. Display control means for displaying and transmission for supplying power to the other display device and transmitting image data associated with the identification information of the other display device to the other display device by the storage means And a display device. Accordingly, the display contents of the plurality of display devices can be changed in cooperation with each other according to the operation of the operator, and the weight of each display device can be reduced.

  Furthermore, the present invention includes a plurality of display elements, and power is supplied in a period from when the display elements are driven until an image is displayed. After the image is displayed, power is not supplied. In addition, the computer of the display device having display means that continues to display the image and operation detection means that detects an operation by the operator and outputs an operation signal corresponding to the operation is provided as a device other than the device itself and the device itself Output from the storage means for storing the correspondence between the identification information assigned to each display device and the image data of the image displayed on each display device, and the operation detection means of the own device or the other display device. The operation content determining means for determining the operation content of the operator based on the acquired operation signal, and the storage according to the operation content determined by the operation content determination means Correspondence changing means for changing the correspondence stored in the stage and storing it in the storage means, and the display element of the display means are driven, and the storage means associates with the identification information of the own device. Display control means for displaying an image according to image data on the display means, and image data that supplies power to the other display device and is associated with identification information of the other display device by the storage means Is provided as a transmission means for transmitting the message to the other display device. Accordingly, the display contents of the plurality of display devices can be changed in cooperation with each other according to the operation of the operator, and the weight of each display device can be reduced.

[Constitution]
(Display system configuration)
FIG. 1 is a perspective view showing an appearance of a display system 1 according to the present embodiment. The display system 1 includes a plurality of display devices. In the present embodiment, the display system 1 includes one master display device 10 that is a first display device, and two slave display devices 20A and 20B that are second display devices. In the following description, when it is not necessary to distinguish between the slave display devices 20A and 20B, they are collectively referred to as “slave display device 20”.

  FIG. 2 is a side view of the display system 1 shown in FIG. 1 when viewed from the direction of arrow I in FIG. As shown in the figure, two rows of linear rails d1 extending in the direction perpendicular to the paper surface are provided on the back surface side of the master display device 10, and the surface side of the slave display device 20A is perpendicular to the paper surface. Two rows of linear rails d1 ′ extending in various directions are provided. The master display device 10 and the slave display device 20A are coupled by the rail d1 and the rail d1 'meshing with each other. The slave display device 20A can move in the arrow R direction and the arrow L direction in FIG. 1 by being slid along the longitudinal direction of the rail d1 of the master display device 10. Similarly, two rows of linear rails d2 extending in a direction perpendicular to the paper surface are provided on the back surface side of the slave display device 20A, and the surface side of the slave display device 20B extends in a direction perpendicular to the paper surface. Two rows of linear rails d2 ′ are provided. The slave display device 20B can move in the arrow R direction and the arrow L direction in FIG. 1 along the longitudinal direction of the rail d2 of the slave display device 20A. Since the slave display device 20A is directly connected to the master display device 10, this connection method is referred to as “direct connection”. On the other hand, since the slave display device 20B is indirectly connected to the master display device 10 via the slave display device 20A, this connection method is referred to as “indirect connection”.

  FIG. 3 is a plan view showing how the slave display device 20 opens and closes. When the slave display device 20 is not used, the operator moves each slave display device 20 below the master display device 10 as shown in FIG. At this time, since each slave display device 20 overlaps with the master display device 10, it is arranged at a position P0 shown in FIG. When the slave display device 20 is closed in this way, the entire display system 1 has a compact shape, and it can be easily used and carried in a small space.

  On the other hand, when using the slave display devices 20A and 20B, the operator pulls out each slave display device 20 so that the display surface on which the image is displayed can be seen. For example, when the slave display device 20A is pulled out in the direction of the arrow R in the figure by the operator, the slave display device 20A is adjacent to the master display device 10 from a position P0 below the master display device 10 as shown in FIG. Move to position P1. Similarly, the slave display device 20B moves from the position P0 to the position P2 adjacent to the slave display device 20A. When the operator pulls out in the direction of the arrow L, the slave display device 20A moves from a position P0 below the master display device 10 to a position P3 next to the master display device 10 as shown in FIG. And move. Similarly, the slave display device 20B moves from the position P0 to the position P4 adjacent to the slave display device 20A. As shown in FIGS. 3B and 3C, when the slave display devices 20A and 20B are opened, the master display device 10 and the slave display devices 20A and 20B are arranged in series so as to be adjacent to each other. Arranged.

  As described above, the rails d1 to d2 and d1 ′ to d2 ′ provided in each display device have the first position (position P0) where the display surface of one display device and the display surface of the other display device overlap. In a state where one display device or the other display device can move between the second positions (positions P1 to P4) where the display surface of one display device and the display surface of the other display device do not overlap. , Function as a connecting means for connecting them. Furthermore, these rails d1 to d2 and d1 ′ to d2 ′ are in the first direction (arrow R direction) when each slave display device 20 is viewed from the first position (position P0) and the master display device 10. A second direction (arrow) opposite to the first direction (arrow R direction) between the second position (positions P1, P2) and the first position (position P0) when viewed from the master display device 10. Each display device is connected in a state where it can move between the second positions (positions P3 and P4) in the L direction.

(Configuration of master display device)
Next, the configuration of the master display device 10 will be described.
FIG. 4 is a plan view showing the appearance of the master display device 10, and FIG. 5 is a block diagram showing the electrical configuration of the master display device 10. The master display device 10 includes a memory display 11, a touch panel 11t, transmission antenna units 12a and 12b, reception antenna units 13a and 13b, a power source 14, a CPU (Central Processing Unit) 15, and a ROM (Read Only). Memory 16, RAM (Random Access Memory) 17, control circuit 18, and drive circuit 19. In the following description, when it is not necessary to distinguish between the transmission antenna units 12a and 12b, they are collectively referred to as “transmission antenna unit 12”. Similarly, when there is no need to distinguish the receiving antenna units 13a and 13b, they are collectively referred to as “receiving antenna unit 13”.

  The memory-type display 11 has a plurality of display elements such as cholesteric liquid crystal and electrophoresis, and the display elements 11 are driven according to image data supplied to display an image corresponding to the image data. Display means for displaying. In the memory-type display body 11, power is required in a driving period from when the display element is driven until an image is displayed, but power is supplied after the driving period has elapsed and an image is displayed. Even if it is not done, the image can be continuously displayed. The touch panel 11t is a transparent panel provided on the surface of the memory display 11, and senses the presence or absence of an object contact for each predetermined minute area, and outputs a contact signal indicating the object contact for each minute area. . This minute area is associated with a predetermined number of pixels (for example, 1 × 1 pixel or 3 × 3 pixel) in the memory display 11.

  As shown by a dotted line in FIG. 4, the transmission antenna unit 12 is formed in a coil shape by winding a conducting wire, supplies power by electromagnetic induction, and transmits data wirelessly. The transmission antenna unit 12 is provided at a position close to the back side inside the master display device 10. The transmission antenna unit 12a is arranged at the upper left in FIG. 4 in the master display device 10, and the transmission antenna unit 12b is arranged at the lower right in FIG. That is, the transmission antenna unit 12a and the transmission antenna unit 12b are arranged diagonally to each other. The transmission antenna unit 12 extends along a direction in which the slave display device 20 can move, and the length in the longitudinal direction is the length in the width direction of the master display device 10 (the movement direction of the slave display device 20). It is about half that. The transmission antenna unit 12 and the CPU 15 to the control circuit 18 function as transmission means for supplying power to the slave display device 20 connected to the master display device 10 by electromagnetic induction and transmitting image data wirelessly.

  As shown by the dotted line in FIG. 4, the receiving antenna unit 13 is a coil formed by winding a conducting wire, and is supplied with power by electromagnetic induction and transmitted wirelessly. Receive data using its power. The receiving antenna unit 13 is provided at a position close to the inner surface side of the master display device 10. The reception antenna unit 13a is arranged at the upper right in FIG. 4 in the master display device 10, and the reception antenna unit 13b is arranged at the lower left in FIG. That is, the reception antenna unit 13a and the reception antenna unit 13b are arranged diagonally to each other. The power supply 14 is a power supply unit that includes a battery and supplies power to each unit of the master display device 10 and the slave display device 20. The CPU 15 reads a program or the like stored in the ROM 16 into the RAM 17 and executes various processes according to the program. The ROM 16 stores programs and various data used by the CPU 15. The RAM 17 is a storage means used as a work area for the CPU 15.

  The control circuit 18 includes a drive control circuit 31, a touch sensor 32, and an A / D converter 33. The drive control circuit 31 performs control of power supply, control of exchange of various data such as image data and commands, and the like. In addition, the drive control circuit 31 is provided with a RAM 35 in which a screen ID assigned to the memory display 11 is stored. In this embodiment, it is assumed that “01” is stored in the RAM 35 as the screen ID assigned to the memory display 11. The screen ID “01” is used as identification information assigned to the master display device 10. The touch sensor 32 detects a position where the touch panel 11t is touched based on the contact signal output from the touch panel 11t, and outputs an operation signal representing the detected position. The touch sensor 32 detects a touched position in accordance with an xy coordinate system in which the upper left corner point of the display area of the memory-type display body 11 is the origin 0. That is, the touch panel 11t and the touch sensor 32 function as an operation detection unit that detects an operation by the operator and outputs an operation signal corresponding to the operation. The A / D converter 33 converts the operation signal output from the touch sensor 32 from analog to digital and supplies the converted signal to the drive control circuit 31. The drive circuit 19 drives the display element of the memory display body 11 using the power supplied from the power supply 14 and displays an image corresponding to the image data supplied from the drive control circuit 31 on the memory display body 11. It is the 1st display control means to make it.

(Configuration of slave display device)
Next, the configuration of the slave display device 20 will be described. In the following description, when it is necessary to distinguish between the configurations of the slave display devices 20A and 20B, the configuration of the slave display device 20A will be described with the symbol “A”. The configuration will be described with reference to “B”. In addition, when it is not necessary to particularly distinguish the configurations of the slave display devices 20A and 20B, the description of the symbols “A” and “B” is omitted.

  FIG. 6 is a plan view showing the external appearance of the slave display device 20, and FIG. 7 is a block diagram showing the electrical configuration of the slave display device 20. The slave display device 20 includes a memory display 21, a touch panel 21t, transmission antenna units 22a and 22b, reception antenna units 23a and 23b, a control circuit 24, and a drive circuit 25. In the following description, when it is not necessary to distinguish between the transmission antenna units 22a and 22b, they are collectively referred to as “transmission antenna unit 22”. Similarly, when it is not necessary to distinguish between the receiving antenna units 23a and 23b, they are collectively referred to as “receiving antenna unit 23”.

  The memory display 21, the touch panel 21 t, the transmission antenna unit 22, the reception antenna unit 23, the control circuit 24, and the drive circuit 25 have the same configuration as the memory display 11 of the master display device 10 described above. This is the same as the transmission antenna unit 12, the reception antenna unit 13, the control circuit 18, and the drive circuit 19. That is, the control circuit 24 includes a drive control circuit 41, a touch sensor 42, and an A / D converter 43, similar to the control circuit 18 of the master display device 10 described above. Therefore, the reception antenna unit 23 and the control circuit 24 receive the power supplied by electromagnetic induction from the transmission antenna unit 12 of the master display device 10, and the image data transmitted to the own device using the received power. Functions as a receiving means for receiving. Further, the drive circuit 25 drives the memory display 21 of the device itself using the power received by the reception antenna unit 23, and displays an image corresponding to the image data received by the reception antenna unit 23 as a memory display. 21 is a second display control means to be displayed on 21.

  In addition, the drive control circuit 41 is provided with a RAM 45 in which a screen ID assigned to the memory display 21 is stored. In this embodiment, the RAM 45A of the slave display device 20A stores “02” as the screen ID that is the identification information assigned to the memory display 21A, and the RAM 45B of the slave display device 20B stores the memory property. It is assumed that “03” is stored as the screen ID that is identification information assigned to the display body 21B. These screen IDs “02” and “03” are used as identification information assigned to the slave display devices 20A and 20B, respectively.

  Next, the contents of data stored in the ROM 16 of the master display device 10 will be described. The ROM 16 stores a screen ID assigned to each of the memory display bodies 11 and 21, each image data representing a plurality of images whose display order is determined in advance, and a screen movement processing specification table. Yes. As described above, in this embodiment, screen IDs “01”, “02”, and “03” are assigned to the memory-type display bodies 11, 21A, and 21B, respectively. Accordingly, “01” is stored in the ROM 16 as the screen ID of the memory display 11, “02” is stored as the screen ID of the memory display 21 </ b> A, and the screen ID of the memory display 21 </ b> B is stored. “03” is stored.

Next, the screen movement process specification table will be described.
FIG. 8 is a diagram illustrating an example of the screen movement process specification table T. The screen movement process specification table T shows the correspondence between the “operation contents” of the operator and the “screen movement process”. “Operation content” is information indicating the content of the operation performed by the operator. For example, “tap twice” in the drawing represents an operation of designating one memory display body and the other memory display body alternately or simultaneously. “Trace to the right” in the figure is an operation to move the designated position on any memory display body in the R direction in FIG. 3 having a direction component parallel to the arrangement direction of the display devices. Represents. Similarly, “tracing in the left direction” in the figure is an operation for moving the designated position on any memory display body in the L direction in FIG. 3 having a direction component parallel to the arrangement direction of the display device. Represents. Further, “draw a circle clockwise” in the figure represents an operation of moving a designated position on any memory display body so as to draw a circle in a clockwise direction. Similarly, “draw a circle counterclockwise” in the drawing represents an operation of moving a designated position on any memory display body so as to draw a circle in a counterclockwise direction. In this example, when a “tap twice” operation is performed, a “screen replacement process” is performed. In addition, when a “Race Right” operation is performed, a “Right Screen Move Process” is performed, and when a “Left Direction” operation is performed, a “Left Screen Move Process” is performed. It has become. Similarly, when a “draw a circle in a clockwise direction” operation is performed, an “aggregated image display process” is performed, and when an “draw a circle in a counterclockwise direction” is performed, a “distributed display process of aggregated images” is performed. Is now being done.

[Operation]
Next, the operation of the display system 1 will be described. Here, display processing for displaying an image on the slave display device 20 will be described first, and then screen movement processing for moving the screen of the display device will be described.
(Display processing)
As described above, when it is desired to use the slave display devices 20A and 20B, the operator pulls out each slave display device 20 in either the arrow R direction or the arrow L direction in FIG. 20 is opened. The state where the slave display device 20 is opened means that the slave display device 20 is moved to a position where the display surface of each slave display device 20 does not overlap the display surface of another display device, that is, the second position described above. This is the case.

  FIG. 9 is a plan view showing the slave display devices 20A and 20B pulled out in the direction of arrow R in FIG. FIG. 10 is a side view of the display system 1 shown in FIG. 9 when viewed from the direction of arrow II in the drawing. When the operator pulls out in the direction of arrow R in FIG. 3, as shown in FIG. 10, the transmission antenna unit 12b of the master display device 10 and the reception antenna unit 23bA of the slave display device 20A overlap each other. The transmission antenna unit 22bA of the slave display device 20A and the reception antenna unit 23bB of the slave display device 20B are overlapped. As a result, the master display device 10 and the slave display device 20A, and the slave display device 20A and the slave display device 20B are in an electrically connected state. Therefore, from the master display device 10 to the slave display device 20A and from the slave display device 20A. Electric power is sequentially supplied to the slave display device 20B. Each part of the slave display device 20, that is, the memory display body 21, the transmission antenna unit 22, the reception antenna unit 23, the control circuit 24, and the drive circuit 25 is transmitted from the transmission antenna unit 12 of the master display device 10 to the reception antenna unit 23 of its own device. The following processing is performed using the electric power supplied to.

  FIG. 11 is a sequence diagram showing display processing. First, the CPU 15 of the master display device 10 reads out image data of an image to be displayed on the storage-type display bodies 11 and 21 among the image data stored in the ROM 16 and stores it in the RAM 17 (step SA10). Here, it is assumed that image data representing the images of the first page to the third page are read out and stored in the RAM 17.

  FIG. 12 is a diagram schematically showing a storage area of the RAM 17 in which image data is stored. In the example shown in the figure, the image data of the first page is stored from the top address “0xXXXX aaa”, the image data of the second page is stored from the top address “0xXXXX bbbb”, and the image data of the third page is stored. It is stored from the start address “0xXXXX cccc”. Further, the CPU 15 creates screen management information for each image data read out to the RAM 17 and stores the created screen management information in the RAM 17.

  FIG. 13 is a diagram illustrating a data structure of the screen management information. In the figure, “int ID;” describes the screen ID assigned to the memory-type display bodies 11 and 21 that display the image represented by the image data. In the figure, “int * PicData;” describes the start address of the storage area of the RAM 17 in which the image data is stored, and “unsing int DataSize;” describes the data size of the image data. . Various status flags are described in “int Status;” in the figure. In this case, this screen management information is created for each image data of the first to third pages.

Subsequently, the CPU 15 reads out the image data stored in the RAM 17 and transmits it to the corresponding display device (step SA20). The transmission of the image data is performed according to a predetermined method for determining a display image.
FIG. 14 is a diagram schematically illustrating a method for determining a display image. An array row L1 in the drawing represents a logical array order of image data in the page order. In addition, the line L2 in the figure represents the order of arrangement of the display devices. In this example, the image data of the first to third pages is stored in the RAM 17. In this case, the image data of the first page, which is the first page, is transmitted to the slave display device 20B to which the screen ID “03” is assigned. The image data of the second page, which is the next page, is transmitted to the slave display device 20A to which the screen ID “02” is assigned. Then, the image data of the third page, which is the next page, is supplied to the memory display 11 of the master display device 10 to which the screen ID “01” is assigned.

  More specifically, the CPU 15 reads out the screen ID stored in the ROM 16, and the screen ID “03” of the memory display 21B, the image data of the first page, and the screen ID “02 of the memory display 21A. ”And the image data of the second page, the screen ID“ 01 ”of the memory display 11 and the image data of the third page are associated with each other and supplied to the drive control circuit 31. The drive control circuit 31 selects and acquires image data associated with the screen ID stored in the RAM 35 from the supplied image data, and transmits other image data from the transmission antenna unit 12. Let In this example, since “01” is stored as the screen ID in the RAM 35, the image data of the third page associated with this screen ID “01” is acquired by the drive control circuit 31, and the other 2 The image data of the page and the image data of the third page are transmitted from the transmission antenna unit 12.

  When image data is transmitted from the transmission antenna unit 12b of the master display device 10, the reception antenna unit 23bA of the slave display device 20A receives this image data and supplies it to the drive control circuit 41A. Similarly to the drive control circuit 31 described above, the drive control circuit 41A selects and acquires image data associated with the screen ID stored in the RAM 45A from the supplied image data. The image data is transmitted from the transmission antenna unit 22A. In this example, since “02” is stored as the screen ID in the RAM 41A, the image data of the second page associated with the screen ID “02” is acquired, and the image data of the other first page is acquired. Is transmitted from the transmitting antenna unit 22A.

  When image data is transmitted from the transmission antenna unit 22bA of the slave display device 20A, the reception antenna unit 23bB of the slave display device 20B receives this image data and supplies it to the drive control circuit 41B. Similar to the drive control circuit 31 described above, the drive control circuit 41B selects and acquires image data associated with the screen ID stored in the RAM 45B from the supplied image data. In this example, since “03” is stored as the screen ID in the RAM 45B, the image data of the first page associated with the screen ID “03” is acquired. Since only one image data is supplied to the drive control circuit 41B, it is not necessary to transfer the image data. In this way, the drive control circuits 31 and 41 acquire the image data transmitted from the CPU 15 of the master display device 10 to the own device.

  When the image data is acquired, the drive control circuit 31 of the master display device 10 supplies the acquired image data to the drive circuit 19. The drive circuit 19 drives the display element of the memory display 11 according to the image data supplied from the drive control circuit 31, and displays an image corresponding to the image data (step SA30). As a result, the image of the third page is displayed on the memory display 11. Further, when each of the drive control circuits 41A and 41B of the slave display device 20 acquires the image data, it returns an ACK signal indicating that the image data has been transmitted normally (step SA40). Subsequently, the drive control circuits 41A and 41B supply the acquired image data to the drive circuit 25 connected to the own circuit. The drive circuits 25A and 25B each drive the display element of the memory display 21 connected to the circuit according to the image data supplied from the drive control circuit 41, and display an image corresponding to the image data ( Step SA50). Thereby, the image of the second page is displayed on the memory display 21A, and the image of the first page is displayed on the memory display 21B.

Subsequently, the CPU 15 of the master display device 10 writes the screen ID of the storage display body on which the image of the corresponding image data is displayed in the screen management information stored in the RAM 17 (step SA60).
FIG. 15 is a diagram showing the screen management information I1 to I3 in which the device ID is written. The screen management information I1 in the figure is screen management information corresponding to the image data of the first page, the screen management information I2 is screen management information corresponding to the image data of the second page, and the screen management information I3 is This is screen management information corresponding to the image data of the third page. As shown in the figure, “int ID;” of the screen management information I1 describes the screen ID “03” of the display device 20B that displays the image of the first page. Similarly, “int ID;” of the screen management information I2 describes the screen ID “02” of the display device 20A that displays the image of the second page, and “int ID;” of the screen management information I3. Describes the screen ID “01” of the master display device 10 that displays the image of the third page. That is, the screen management information I1 to I3 represents the correspondence between the screen ID assigned to each of the master display device 10 and the slave display device 20 and the image data of the image displayed on each display device. . The CPU 15 can grasp which display device displays which image by referring to the screen management information I1 to I3.

(Overview of screen movement process)
Next, a screen movement process for moving the screen of the display device will be described. Here, the outline of the screen moving process will be described first, and then the contents of the screen moving process will be described in detail with some specific examples.

  FIG. 16 is a flowchart showing an outline of the screen movement process. When the operator operates the touch panel of the display device, the CPU 15 of the master display device 10 acquires an operation signal representing the operation content (step SB10). For example, when the touch panel 11t of the master display device 10 is operated, the touch sensor 32 outputs an operation signal indicating a position where the touch panel 11t is touched based on the contact signal output from the touch panel 11t as described above. . This operation signal is converted from analog to digital by the A / D converter 33 and then supplied to the CPU 15 by the drive control circuit 31 together with the screen ID stored in the RAM 35. On the other hand, when the touch panel 21t of the slave display device 20 is operated, as described above, the touch sensor 42 outputs an operation signal indicating a position where the touch panel 21t is touched based on the contact signal output from the touch panel 21t. . This operation signal is converted from analog to digital by the A / D converter 43 and then supplied to the transmission antenna unit 22 together with the screen ID stored in the RAM 45 by the drive control circuit 41. The operation signal is transmitted from the transmission antenna unit 22 of the slave display device 20 to the reception antenna unit 12a of the master display device 10, and is supplied to the CPU 15 by the reception antenna unit 12a.

  Subsequently, based on the acquired operation signal, the CPU 15 calculates a change pattern and a gradient of the position coordinates represented by the operation signal, and determines the operation content of the operator (step SB20). That is, the CPU 15 functions as an operation content determination unit that acquires an operation signal output from the touch panel of the own device or the slave display device 20 and determines the operation content of the operator based on the acquired operation signal. Subsequently, the CPU 15 refers to the screen movement process identification table T stored in the ROM 16 to identify the screen movement process corresponding to the determined operation content (step SB30), and executes the identified screen movement process (step SB30). Step SB40). In this screen movement process, the screen management information stored in the RAM 17 is rewritten according to the operation content of the operator determined in step SB20. As described above, the screen management information represents the correspondence between the screen ID assigned to each of the master display device 10 and the slave display device 20 and the image data of the screen displayed on each display device. . Therefore, the CPU 15 functions as a correspondence changing unit that changes the correspondence (screen management information) stored in the RAM 17 and stores it in the RAM 17 according to the operation content determined in step SB20.

(Screen replacement process)
Next, a screen replacement process that is an example of the screen movement process will be described. When it is desired to replace the screen of the display device, the operator performs a tap operation in which the touch panel on one memory display body and the touch panel on the other memory display body are alternately or simultaneously designated with a fingertip or the like.

  FIG. 17 illustrates processing when the touch panel 11t of the master display device 10 on which the third page image is displayed and the touch panel 21tB of the slave display device 20B on which the first page image is displayed are sequentially tapped. FIG. In this case, in step SB10 described above, the operation signal output from the touch sensor 42B of the slave display device 20B and associated with the screen ID “03” and the touch sensor 32 of the master display device 10 are output to the screen. An operation signal associated with the ID “01” is acquired. Subsequently, in step SB20 described above, the screen movement processing specification table T shown in FIG. 8 is referred to, and the “twice tapping” operation is determined as the operation content of the operator. Subsequently, in step SB30, the “screen replacement process” associated with the “tap twice” operation is specified in the screen movement process specification table T.

  FIG. 18 is a sequence diagram illustrating image replacement processing. First, the CPU 15 of the master display device 10 includes the screen management information including the screen ID “03” of the slave display device 20B operated by the operator, among the screen management information stored in the RAM 17, and the master display device. Screen management information including 10 screen IDs “01” is specified. In this example, since the screen management information I1 to I3 shown in FIG. 15 is stored in the RAM 17, the screen management information I1 in which “03” is described as the screen ID and “01” is described as the screen ID. The screen management information I3 being specified is specified. Then, the CPU 15 replaces the screen ID of the specified screen management information I1 with the screen ID of the screen management information I3 (step SB110). In this example, the screen ID “03” included in the screen management information I1 illustrated in FIG. 15 is replaced with the screen ID “01” included in the screen management information I3.

  As described above, the screen management information I1 corresponds to the image data of the first page image displayed on the memory display 21B of the slave display device 20B, and the screen management information I3 is the master display device 10. This corresponds to the image data of the third page image displayed on the memory display 11. That is, if the operation content determined in step SB20 is an operation of designating one display device and the other display device alternately or simultaneously, the correspondence relationship (screen) stored in the RAM 17 is displayed. The image data associated with the screen ID of the other display device before the change of the management information corresponds to the screen ID of the one display device, and the screen of the one display device before the change of the correspondence relationship. It functions as correspondence changing means for changing the correspondence so that the image data associated with the ID corresponds to the screen ID of the other display device.

  Subsequently, the CPU 15 transmits image data based on the screen management information with the screen ID replaced (step SB120). Specifically, the CPU 15 first reads the image data of the first page from the storage area of the RAM 17 indicated by the head address “0xXXXaaa” described in the screen management information I1 shown in FIG. The image data of the third page is read from the storage area of the RAM 17 indicated by the head address “0xXXXX cccc” described in I3. Subsequently, the CPU 15 stores the screen ID “01” described in the screen management information I1 and the image data of the first page, the screen ID “03” described in the screen management information I3, and the image data of the third page. Are associated with each other and supplied to the drive control circuit 31. In this case, the image data of the first page is acquired by the drive control circuit 31 in which “01” is stored as the screen ID in the same manner as described above. The image data of the third page is acquired by the drive control circuit 45B that stores “03” as the screen ID.

  That is, the transmission antenna unit 12 of the master display device 10 and the CPU 15 to the control circuit 18 cooperate to supply power to the slave display device 20 and are associated with the screen ID of the slave display device 20 by the RAM 17. The image data is transmitted to the slave display device 20. In addition, the receiving antenna unit 23 and the control circuit 24 of the slave display device 20 cooperate to receive the power supplied from the transmitting antenna unit 12 of the master display device 10 and use the received power to address the device itself. The transmitted image data is received.

  When the image data is acquired, the drive control circuit 31 of the master display device 10 supplies the acquired image data to the drive circuit 19. The drive circuit 19 drives the display element of the memory display 11 according to the image data supplied from the drive control circuit 31, and displays an image corresponding to the image data (step SB130). That is, the drive circuit 19 drives the display element of the memory-type display body 11 and causes the RAM 17 to display an image according to the image data associated with the screen ID of the own device. As a result, the memory display 11 displays the first page image instead of the third page image as shown in FIG.

  Further, when the drive control circuit 41B of the slave display device 20B acquires the image data, the drive control circuit 41B returns an ACK signal indicating that the image data has been normally transmitted (step SB140). Subsequently, the drive control circuit 41B supplies the acquired image data to the drive circuit 25B. The drive circuit 25B drives the display element of the memory display 21B according to the image data supplied from the drive control circuit 41B, and displays an image according to the image data (step SB150). That is, the drive circuit 25 drives the display element of the storage-type display body 21 of its own device using the power received by the reception antenna unit 23, and stores an image corresponding to the image data received by the reception antenna unit 23. It is displayed on the display body 21. As a result, the third page image is displayed on the memory display 21B instead of the first page image, as shown in FIG. When this is viewed from the operator, it appears that the screen of the master display device 10 and the screen of the slave display device 20B are interchanged.

(Right screen movement process)
Next, a screen movement process in the right direction that is an example of the screen movement process will be described. When the operator wants to move the screen in the right direction, the operator moves the position designated by a finger or the like on the touch panel on any memory display body to the right in FIG. 3 having a direction component parallel to the arrangement direction of the display device. Perform the operation to move in the direction.

  FIG. 19 is a diagram for explaining processing when the position designated on the touch panel 11t of the master display device 10 on which the image of the third page is displayed is moved rightward. In this case, in step SB10 described above, an operation signal output from the touch sensor 32 of the master display device 10 and associated with the screen ID “01” is acquired. Subsequently, in step SB20, the screen movement processing specification table T shown in FIG. 8 is referred to, and the “trace right” operation is determined as the operation content of the operator. Subsequently, in step SB30, in the screen movement process specification table T, the “right screen movement process” associated with the “trace right” operation is specified.

  FIG. 20 is a sequence diagram illustrating a screen movement process in the right direction. In this case, a corresponding image is displayed on each display device when the row L1 shown in FIG. 14 is shifted by one in the right direction in the figure. Therefore, the CPU 15 first reads out image data representing the image of the fourth page to be newly displayed from the ROM 16 and stores it in the RAM 17 (step SB210). Subsequently, the CPU 15 creates screen management information corresponding to the image data of the fourth page, and writes the screen ID “01” of the memory display 11 into the screen management information (step SB220).

  Subsequently, the CPU 15 changes the screen ID of the screen management information corresponding to the second page image data and the third page image data (step SB230). More specifically, in this example, since the screen management information I1 to I3 shown in FIG. 15 is stored in the RAM 17, the CPU 15 is included in the screen management information I3 corresponding to the image data on the third page. The screen ID “01” is changed to the screen ID “02” of the slave display device 20A on the right side of the master display device 10 displaying the image of the third page. Further, the CPU 15 displays the screen ID “02” included in the screen management information I2 corresponding to the image data on the second page, and the slave display device on the right side of the slave display device 20A displaying the image on the second page. The screen ID is changed to the screen ID “03” of 20B. That is, the CPU 15 is an operation in which the operation content specified in step SB20 moves the position designated on the storage-type display body of the display device in a direction having a direction component parallel to the direction of the array of the display device. In this case, the image data associated with the screen ID of each display device before the change of the correspondence relationship (screen management information) stored in the RAM 17 and the movement of the position specified in view of the position of the display device are performed. The screen ID of the adjacent display device in the direction corresponds to the screen ID of the display device arranged at the end opposite to the moving direction of the designated position, and the image displayed on the display device It functions as a correspondence changing means for changing the correspondence so that the image data representing the image in the display order before or after the image corresponds.

  Subsequently, the CPU 15 transmits image data based on the screen management information with the screen ID added or changed (step SB240). More specifically, the CPU 15 reads image data from the storage area of the RAM 17 indicated by the head address of the screen management information stored in the RAM 17 in the same manner as described above. In this example, the image data of the second page to the fourth page is read out. Subsequently, the CPU 15 has a screen ID “01” described in the screen management information corresponding to the image data on the fourth page and a screen ID “02” described in the image data on the fourth page and the screen management information I3. , The image data of the third page, the screen ID “03” described in the screen management information I2, and the image data of the second page are associated with each other and supplied to the drive control circuit 31. In this case, the image data of the fourth page is acquired by the drive control circuit 35 in which “01” is stored as the screen ID in the same manner as described above. Similarly, the image data of the third page is acquired by the drive control circuit 45A in which “02” is stored as the screen ID, and the image data of the second page is driven in which “03” is stored as the screen ID. Acquired by the control circuit 31B.

  That is, the transmission antenna unit 12 of the master display device 10 and the CPU 15 to the control circuit 18 cooperate to supply power to the slave display device 20 and are associated with the screen ID of the slave display device 20 by the RAM 17. The image data is transmitted to the slave display device 20. In addition, the receiving antenna unit 23 and the control circuit 24 of the slave display device 20 cooperate to receive the power supplied from the transmitting antenna unit 12 of the master display device 10 and use the received power to address the device itself. The transmitted image data is received.

  When the image data is acquired, the drive control circuit 31 of the master display device 10 supplies the acquired image data to the drive circuit 19. The drive circuit 19 drives the display element of the memory display 11 according to the image data supplied from the drive control circuit 31, and displays an image according to the image data (step SB250). That is, the drive circuit 19 drives the display element of the memory-type display body 11 and causes the RAM 17 to display an image according to the image data associated with the screen ID of the own device. As a result, the fourth page image is displayed on the memory display 11 instead of the third page image as shown in FIG.

  In addition, when each of the drive control circuits 41A and 41B of the slave display device 20 acquires the image data, it returns an ACK signal indicating that the image data has been normally transmitted (step SB260). Subsequently, the drive control circuits 41A and 41B supply the acquired image data to the drive circuit 25 connected to the own circuit. The drive circuits 25A and 25B drive the display element of the memory display 21 connected to the self-circuit according to the image data supplied from the drive control circuit 41, and display an image according to the image data (step). SB270). That is, the drive circuit 25 drives the display element of the storage-type display body 21 of its own device using the power received by the reception antenna unit 23, and stores an image corresponding to the image data received by the reception antenna unit 23. It is displayed on the display body 21. As a result, as shown in FIG. 19, the memory display 21A displays the third page image instead of the second page image, and the memory display 21B replaces the first page image. The second page image is displayed. When this is seen from the operator, it appears that the screen of the display device has moved to the right.

(Left direction screen movement process)
Next, the screen movement process in the left direction, which is an example of the screen movement process, will be described. When the operator wants to move the screen in the left direction, the operator moves the position designated by a finger or the like on the touch panel on any of the memory-type display bodies to the left in FIG. 3 having a direction component parallel to the arrangement direction of the display device. Perform the operation to move in the direction. In this case, in step SB20 described above, the screen movement processing specification table T shown in FIG. 8 is referred to, and the “trace left” operation is determined as the operation content of the operator. Subsequently, in step SB30, in the screen movement process specification table T, the “left-direction screen movement process” corresponding to the “trace left” operation is specified.

  In this case, a corresponding image is displayed on each display device when the row L1 shown in FIG. 14 is shifted by one in the left direction in the figure. Therefore, the CPU 15 performs the processes after step SB230 without performing the processes of steps SB210 and 220 described above. In this example, since the screen management information I1 to I3 shown in FIG. 15 is stored in the RAM 17, in step SB230, the CPU 15 includes the screen ID included in the screen management information I1 corresponding to the image data of the first page. “03” is changed to the screen ID “02” of the slave display device 20A on the left side of the slave display device 20B displaying the image of the first page. Further, the CPU 15 displays the screen ID “02” included in the screen management information I2 corresponding to the image data on the second page as the master display device on the left side of the slave display device 20A displaying the image on the second page. 10 is changed to the screen ID “01”.

  Thus, the second page image is displayed on the memory display 11 of the master display device 10 instead of the third page image. Further, the first page image is displayed on the memory display 21A of the slave display device 20A instead of the second page image. As shown in FIG. 14, since the image corresponding to the slave display device 20B disappears when the row L1 is shifted by one in the left direction in the drawing, the memory display 21B of the slave display device 20B has no image. A background image is displayed instead of the first page image. Alternatively, the image may not be displayed on the memory display 21B. When this is viewed from the operator, it appears that the screen of the display device has moved leftward.

(Aggregated image display processing)
Next, an aggregated image display process that is an example of the screen movement process will be described. When displaying an aggregated image that is a thumbnail of the screen of each display device, the operator draws a circle in a clockwise direction at a position specified by a fingertip or the like on the touch panel on any memory display body. Perform the move operation.

  FIG. 21 is a diagram for explaining processing when the position designated on the touch panel 21tA on the memory display 21A on which the image of the second page is displayed is moved to draw a circle in the clockwise direction. . In this case, in step SB10 described above, an operation signal output from the touch sensor 42 of the slave display device 20A and associated with the screen ID “02” is acquired. Subsequently, in step SB20, the screen movement processing specification table T shown in FIG. 8 is referred to, and the operation of “draw a circle clockwise” is determined as the operation content of the operator. Subsequently, in step SB30, in this screen movement processing specification table T, “display processing of aggregated images” associated with the “draw a circle clockwise” operation is specified.

  FIG. 22 is a sequence diagram illustrating the display processing of the aggregated image. First, the CPU 15 of the master display device 10 secures a storage area for storing image data for one screen in the RAM 17. Subsequently, the CPU 15 refers to the screen management information stored in the RAM 17 and reads out image data representing an image displayed on each display device. In this example, since the screen management information I1 to I3 shown in FIG. 15 is stored in the RAM 17, the image data of the first to third pages is read out. Subsequently, based on the read image data, the CPU 15 creates aggregated image data representing an aggregated image obtained by reducing the images displayed on the respective display devices and integrating them for one screen (step SB310). Then, the CPU 15 stores the created aggregated image data in the storage area secured in the RAM 17. That is, when the operation content determined in step SB20 is an operation for moving the designated position on the memory display body of the display device in a predetermined direction, the CPU 15 sets the screen ID of each display device. Aggregated image data that collects the images represented by the image data associated with each other and stored in the screen management information of the RAM 17 and creates aggregated image data representing the aggregated image that can be displayed by the memory display body of any one display device Functions as a creation means. At this time, image reduction is performed using a known method such as a linear method or a bicubic method.

  Subsequently, the CPU 15 creates screen management information corresponding to the aggregated image data, and writes the screen ID “02” of the display device 20A operated by the operator in the screen management information (step SB320). In this case, since the screen management information I1 to I3 shown in FIG. 15 is also stored in the RAM 17, the CPU 15 stores the aggregated image data created in step SB310 and the storage display body on which the operation is performed. The correspondence relationship (screen management information) stored in the RAM 17 is changed so as to correspond to the screen ID of the display device having the image data, the image data representing each image included in the aggregated image represented by the aggregated image data, and the operation Functions as a correspondence changing means for associating and storing in the RAM 17 the screen ID of the display device that displayed the image represented by the image data.

In this case, the screen management information corresponding to the aggregated image data describes a status flag indicating the aggregated image data.
FIG. 23 is a diagram illustrating the status flag F described in the aggregated image data. At the head of this status flag F, an aggregation state flag bit “SUM” representing aggregation image data is set.

  Subsequently, the CPU 15 transmits the aggregated image data based on the screen management information of the aggregated image data (Step SB330). Specifically, the CPU 15 first reads the aggregate image data from the storage area of the RAM 17 indicated by the head address described in the screen management information of the aggregate image data. Subsequently, the CPU 15 associates the screen ID “02” described in the screen management information with the aggregated image data and supplies it to the drive control circuit 31. In this case, the aggregated image data is acquired by the drive control circuit 41A in which “02” is stored as the screen ID in the same manner as described above.

  That is, the transmission antenna unit 12 of the master display device 10 and the CPU 15 to the control circuit 18 cooperate to supply power to the slave display device 20 and are associated with the screen ID of the slave display device 20 by the RAM 17. The image data is transmitted to the slave display device 20. In addition, the receiving antenna unit 23 and the control circuit 24 of the slave display device 20 cooperate to receive the power supplied from the transmitting antenna unit 12 of the master display device 10 and use the received power to address the device itself. The transmitted image data is received.

  When acquiring the image data, the drive control circuit 41A of the slave display device 20A returns an ACK signal indicating that the image data has been normally transmitted (step SB340). Subsequently, the drive control circuit 41A supplies the acquired image data to the drive circuit 25A. The drive circuit 25A drives the display element of the memory display 21A according to the image data supplied from the drive control circuit 41A, and displays an image according to the image data (step SB350). That is, the drive circuit 25 drives the display element of the storage-type display body 21 of its own device using the power received by the reception antenna unit 23, and stores an image corresponding to the image data received by the reception antenna unit 23. It is displayed on the display body 21. As a result, as shown in FIG. 21, the memory display 21 </ b> A displays an aggregated image in which the images of the first to third pages are aggregated instead of the image of the second page. The operator can collectively check the images displayed dispersedly on the respective display devices by viewing the aggregated image.

(Distributed display processing of aggregated images)
Next, an aggregated image distributed display process, which is an example of a screen movement process, will be described. When the aggregated image as shown in FIG. 21 is displayed, if the aggregated image is to be displayed back on the image of each page, the operator can use his / her finger or the like on the touch panel on any memory display The position specified in is moved to draw a circle in the counterclockwise direction.

  FIG. 24 is a diagram for explaining processing when the position designated on the touch panel 21t on the memory display 21A on which the image of the second page is displayed is moved to draw a circle in the counterclockwise direction. It is. In this case, in step SB10 described above, an operation signal output from the touch sensor 42 of the slave display device 20A and associated with the screen ID “02” is acquired. Subsequently, in step SB20, the screen movement processing specification table T shown in FIG. 8 is referred to, and the operation of “drawing a circle counterclockwise” is determined as the operation content of the operator. Subsequently, in step SB30, the “aggregated image distributed display process” associated with the “draw counterclockwise circle” operation is specified in the screen movement process specification table T.

  FIG. 25 is a sequence diagram illustrating the aggregated image distributed display process. First, the CPU 15 of the master display device 10 determines whether or not an aggregate image is displayed based on whether or not there is screen management information in which a status flag indicating that it is aggregated image data is present ( Step SB410). If there is no screen management information including “SUM” as the aggregation state flag bit in the status flag, the CPU 15 determines that no aggregated image is displayed (step SB410: NO), and ends this process. On the other hand, if there is screen management information including “SUM” in the status flag, the CPU 15 determines that the aggregated image is displayed (step SB410: YES), and proceeds to the next process.

  Subsequently, the CPU 15 deletes the aggregated image data and the screen management information of the aggregated image data from the RAM 17, and releases the storage area in which they are stored (step SB420). That is, when the aggregate image is displayed on any one of the display devices, the CPU 15 moves the operation content determined in step SB20 in a predetermined direction at the position designated on the memory display body of the display device. If it is an operation to be performed, it functions as correspondence changing means for deleting the aggregated image data stored in the RAM 17 and the screen ID (screen management information) associated with the aggregated image data.

  Subsequently, the CPU 15 transmits image data based on the screen management information stored in the RAM 17 (step SB430). In step SB420 described above, since the screen management information corresponding to the aggregated image data has been deleted, the first to third pages displayed on the memory display body before the aggregated image is displayed in the RAM 17 are displayed. Only the screen management information I1 to I3 corresponding to the image data of this image is stored. Therefore, the CPU 15 includes the screen ID “01” and the third page image data included in the screen management information I3 illustrated in FIG. 15, the screen ID “02” and the second page image data included in the screen management information I2, The screen ID “03” included in the screen management information I1 and the image data of the first page are associated with each other and supplied to the drive control circuit 31. In this case, the image data of the third page is acquired by the drive control circuit 31 in which “01” is stored as the screen ID in the same manner as described above. Similarly, the image data for the second page is acquired by the drive control circuit 41A in which “02” is stored as the screen ID, and the image data for the first page is a drive in which “03” is stored as the screen ID. Acquired by the control circuit 41B.

  That is, the transmission antenna unit 12 of the master display device 10 and the CPU 15 to the control circuit 18 cooperate to supply power to the slave display device 20 and are associated with the screen ID of the slave display device 20 by the RAM 17. The image data is transmitted to the slave display device 20. In addition, the receiving antenna unit 23 and the control circuit 24 of the slave display device 20 cooperate to receive the power supplied from the transmitting antenna unit 12 of the master display device 10 and use the received power to address the device itself. The transmitted image data is received.

  When the image data is acquired, the drive control circuit 31 of the master display device 10 supplies the acquired image data to the drive circuit 19. The drive circuit 19 drives the display element of the memory display 11 according to the image data supplied from the drive control circuit 31, and displays an image corresponding to the image data (step SB440). That is, the drive circuit 19 drives the display element of the memory-type display body 11 and causes the RAM 17 to display an image according to the image data associated with the screen ID of the own device. Thereby, the image of the third page is displayed on the memory display 11 as shown in FIG.

  In addition, when each of the drive control circuits 41A and 41B of the slave display device 20 acquires the image data, it returns an ACK signal indicating that the image data has been normally transmitted (step SB450). Subsequently, the drive control circuits 41A and 41B supply the acquired image data to the drive circuit 25 connected to the own circuit. The drive circuits 25A and 25B each drive the display element of the memory display 21 connected to the circuit according to the image data supplied from the drive control circuit 41, and display an image corresponding to the image data ( Step SB460). That is, the drive circuit 25 drives the display element of the storage-type display body 21 of its own device using the power received by the reception antenna unit 23, and stores an image corresponding to the image data received by the reception antenna unit 23. It is displayed on the display body 21. Thereby, as shown in FIG. 24, the image of the second page is displayed on the memory display 21A instead of the aggregated image, and the image of the first page is displayed on the memory display 21B. When viewed from the operator, it appears that the screen of each display device has returned to the state before the aggregated image is displayed.

According to the embodiment described above, display contents of a plurality of display devices can be changed in cooperation according to the operation of the operator.
In addition, the master display device 10 includes a storage unit that stores the correspondence between the identification information assigned to each display device and the image data, a correspondence between the operation determination unit that determines the operation content of the operator, and the storage unit. While the components such as the CPU 15 as the correspondence changing means for changing the above are mounted, the slave display device 20 is not mounted with these components. Further, the storage display bodies 11 and 21 serving as the display means of the master display device 10 and the plurality of slave display devices 20 can continue to display images without power supply. As the power source, a small power source suitable for power saving can be adopted. Therefore, the entire system including the master display device 10 and the plurality of slave display devices 20 has a simple configuration and contributes to weight reduction.

[Modification]
The above is the description of the embodiment, but the contents of this embodiment can be modified as follows. Further, the following modifications may be combined as appropriate.
(Modification 1)
In the embodiment described above, the processing by the CPU 15 of the master display device 10 is performed according to a program. On the other hand, a hardware circuit may be provided in the master display device 10 and the hardware circuit may perform the above-described processing instead of the CPU 15. Further, the CPU 15 and the hardware circuit may share the above-described processing.

(Modification 2)
In the embodiment described above, the master display device 10 and the slave display device 20 exchange power and data in a non-contact manner. For example, each of the master display device 10 and the slave display device 20 is provided with a conductive terminal and is in contact with the power and data. You may give and receive. It is desirable that the conductive terminal also has a shape having a longitudinal direction in a direction in which the display device can move.
In addition, the master display device 10 and the slave display device 20 may be connected by a flat cable or the like in which a plurality of conductive wires are bundled, and power and data may be exchanged by wire.

(Modification 3)
In the above-described embodiment, an example in which the touch panel is operated by the operator has been described. However, the present invention is not limited to this. For example, when the master display device 10 and the slave display device 20 are provided with an operator that receives an operation of the operator, the operator may be operated instead of the touch panel. In this case, the CPU 15 of the master display device 10 uses the operator to perform an operation for designating one memory display body and the other memory display body alternately or simultaneously. The operation content is determined as a “tap twice” operation. Further, the CPU 15 performs an operation of moving the designated position on any one of the memory-type display bodies in the R direction in FIG. 3 having a direction component parallel to the arrangement direction of the display device by using the operation element. In such a case, the operation content of the operator is determined as an operation of “tracing to the right”, and the designated position on any memory display body has a direction component parallel to the arrangement direction of the display device. 3, the operation content of the operator is determined as an operation of “tracing left”. Similarly, the CPU 15 uses the operator to move the designated position on any of the memory-type display bodies so as to draw a circle in a clockwise direction. When the operation is determined as a “draw a circle in a clockwise direction” and an operation is performed to move the specified position on one of the memory display objects to draw a circle in a counterclockwise direction Determines the operation content of the operator as an operation of “drawing a circle counterclockwise”.

(Modification 4)
In the above-described embodiment, the example in which the screen management information is described in the program format has been described, but the description format of the screen management information is not limited to this. For example, the screen management information may be described in a table format. In short, it is only necessary to store the correspondence relationship between the screen ID assigned to each of the master display device 10 and the slave display device 20 and the image data of the image to be displayed on each display device.
In the embodiment, the screen IDs assigned to the memory-type display bodies 11 and 21 serving as display means are associated with the image data. When each display device includes one display unit as in the embodiment, this screen ID is equal to the identification information assigned to each display device. Further, when the display device includes a plurality of display means, the display device may be considered to be constituted by a plurality of display devices corresponding to each display means. Therefore, also in this case, the screen ID assigned to each display means is equal to the identification information assigned to each display device.

(Modification 5)
In the above-described embodiment, as shown in FIG. 3B and FIG. 3C, the display surface of the slave display device 20 is not completely overlapped with the master display device 10 or the other slave display device 20. The state in which the slave display device 20 is opened has been described as an example, but the present invention is not limited to this. For example, the display surface of the slave display device 20 may be in a state where only half of the display surface overlaps with another display device. As shown in FIG. 10, since the transmission antenna units 12 and 22 extend in the moving direction of the slave display device 20, even if the slave display device 20 is not fully opened, the reception of the slave display device 20 can be performed. The antenna unit 23 and the transmission antenna unit 12 of the master display device 10 or the transmission antenna unit 22 of another slave display device 20 are overlapped. In this case, since the slave display device 20 can perform the processing of the above-described embodiment, the slave display device 20 may not be in a fully opened state. The “second position” of the present invention includes such a position. As described above, the slave display device 20 starts the processing of the above-described embodiment before the slave display device 20 is completely pulled out as illustrated in FIG. 3B and FIG. The time from when the display device 20 is pulled out until the image is displayed on the memory display 21 can be shortened.

(Modification 6)
In the above-described embodiment, when an aggregated image is to be displayed, the operator performs an operation of moving a position designated by a fingertip or the like on a touch panel on any memory display body so as to draw a circle in a clockwise direction. However, the operation for instructing to display the aggregated image is not limited to this. For example, an operation of moving a specified position on any touch panel in the longitudinal direction of the display device may be used. In short, the operation for instructing to display the aggregated image may be an operation for moving the designated position on the memory display body in a predetermined direction. Similarly, the operation for instructing to display the aggregated image in a dispersed manner may be an operation for moving the designated position in a predetermined direction on the storage-type display body. However, in this case, the operation for instructing to display the aggregated image needs to be different from the operation for instructing to display the aggregated image in a distributed manner.

(Modification 7)
In the embodiment described above, each program executed by the CPU 15 of the master display device 10 is a computer apparatus such as a magnetic recording medium such as a magnetic tape or a magnetic disk, an optical recording medium such as an optical disk, a magneto-optical recording medium, or a semiconductor memory. Can be provided in a state stored in a readable recording medium. It is also possible to download this program via a network such as the Internet.

It is a perspective view which shows the external appearance of the display system which concerns on this embodiment. It is a side view of the said display system. It is a top view which shows a mode that the slave display apparatus of the said display system opens and closes. It is a top view which shows the external appearance of the master display apparatus of the said display system. It is a block diagram which shows the electric constitution of the said master display apparatus. It is a top view which shows the external appearance of the said slave display apparatus. It is a block diagram which shows the electric constitution of the said slave display apparatus. It is a figure which shows an example of the screen movement process specific table of the said master display apparatus. It is a top view which shows a mode that each said slave display apparatus was pulled out. It is a side view of a display system when the said slave display apparatus is pulled out. It is a sequence diagram which shows the display process of the said display system. It is a figure which shows typically the memory area of RAM of the said master display apparatus. It is a figure which shows the data structure of the screen management information memorize | stored in the said RAM. It is a figure which shows typically the method of determining the display image in the said display system. It is a figure which shows the said screen management information in which apparatus ID was written. It is a flowchart which shows the outline of the screen movement process of the said display system. It is a figure explaining the image replacement process of the said display system. It is a sequence diagram which shows the image replacement process of the said display system. It is a figure explaining the screen movement process of the right direction of the said display system. It is a sequence diagram which shows the screen movement process of the right direction of the said display system. It is a figure explaining the display process of the aggregated image of the said display system. It is a sequence diagram which shows the display process of the aggregated image of the said display system. It is a figure which shows the status flag described in aggregated image data. It is a figure explaining the distributed display process of the aggregated image of the said display system. It is a sequence diagram which shows the distributed display process of the aggregated image of the said display system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Display system, 10 ... Master display apparatus, 11 ... Memory | storage display body (display means), 11t ... Touch panel (operation detection means), 12 ... Transmission antenna part (transmission means), 13 ... Reception antenna part, 14 ... Power supply , 15 ... CPU (operation content determination means, correspondence change means, transmission means, aggregated image data creation means), 16 ... ROM, 17 ... RAM (storage means), 18 ... control circuit (transmission means), 19 ... drive circuit (First display control means), 31 ... drive control circuit, 32 ... touch sensor (operation detection means), 33 ... A / D converter, 35 ... RAM, 20 ... slave display device, 21 ... memory display (display) Means), 21t ... touch panel (operation detecting means), 22 ... transmitting antenna section, 23 ... receiving antenna section (receiving means), 24 ... control circuit (receiving means), 25 ... drive circuit (second table) Control means), 41 ... drive control circuit, 42 ... touch sensor (operation detection means), 43 ... A / D converter, 45 ... RAM.

Claims (8)

A first display device and a plurality of second display devices;
The first display device and each of the second display devices are:
It has a plurality of display elements, and power is supplied during a period from when the display elements are driven until an image is displayed. After the image is displayed, the image is displayed even if power is not supplied. Display means to continue,
Operation detecting means for detecting an operation by an operator and outputting an operation signal corresponding to the operation;
The first display device includes:
Storage means for storing a correspondence relationship between identification information assigned to each of the first display device and the second display device and image data of an image displayed on each display device;
An operation content determination unit that acquires an operation signal output from the operation detection unit of the device itself or the second display device, and determines the operation content of the operator based on the acquired operation signal;
Correspondence changing means for changing the correspondence stored in the storage means and storing it in the storage means according to the operation content determined by the operation content determining means;
A first display control means for driving a display element of the display means of the own device, and causing the display means to display an image corresponding to the image data associated with the identification information of the own device by the storage means;
Transmission means for supplying power to the second display device and transmitting image data associated with the identification information of the second display device by the storage means to the second display device. ,
Each of the second display devices is
Receiving means for receiving power supplied from the transmitting means of the first display device, and using the received power to receive image data transmitted to the device;
Second display control means for driving the display element of the display means of its own device using the power received by the receiving means, and causing the display means to display an image corresponding to the image data received by the receiving means; A display system comprising: The correspondence changing means of the first display device is:
When the operation content discriminated by the operation content discriminating means is an operation for designating each of the one display device and the other display device alternately or simultaneously,
The image data associated with the identification information of the other display device before the change of the correspondence relationship corresponds to the identification information of the one display device, and the one display before the change of the correspondence relationship. The display system according to claim 1, wherein the correspondence relationship is changed so that the image data associated with the identification information of the device corresponds to the identification information of the other display device. The first display device and the plurality of second display devices are arranged in series so as to be adjacent to each other,
The correspondence changing means of the first display device is:
When the operation content determined by the operation content determination means is an operation to move the designated position on the display means of the display device in a direction having a direction component parallel to the direction of the array,
The correspondence relationship so that the image data associated with the identification information of each display device before the change of the correspondence relationship corresponds to the identification information of the display device arranged next to the display device. The display system according to claim 1, wherein the display system is changed. The image data represents any one of a plurality of images having a predetermined display order;
The correspondence changing means of the first display device is:
When the operation content determined by the operation content determination means is an operation to move the designated position on the display means of the display device in a direction having a direction component parallel to the direction of the array,
Image data associated with the identification information of each of the display devices before the change of the correspondence relationship, and identification information of the adjacent display device in the moving direction of the designated position as seen from the position of the display device And the identification information of the display device arranged at the end opposite to the moving direction of the designated position, and the image in the display order before or after the image displayed on the display device The display system according to claim 3, wherein the correspondence relationship is changed so that the image data representing the image data corresponds to the image data. The first display device includes:
When the operation content determined by the operation content determination means is an operation for moving a specified position on the display means of the display device in a predetermined direction, it is associated with the identification information of each display device. Aggregated image data creating means for collecting images represented by the image data stored in the storage means and creating aggregated image data representing aggregated images that can be displayed by the display means of any one of the display devices. ,
The correspondence changing means of the first display device is:
The correspondence relationship is changed so that the aggregated image data created by the aggregated image data creating unit corresponds to the identification information of the display device having the display unit on which the operation is performed. The display system according to 1. The correspondence changing means of the first display device is:
The correspondence relationship is changed so that the aggregated image data created by the aggregated image data creating unit corresponds to the identification information of the display device having the display unit on which the operation has been performed. The image data representing each image included in the aggregated image to be represented and the identification information of the display device displaying the image represented by the image data when the operation is performed are associated with each other and stored in the storage unit. ,
When the aggregated image is displayed on any one of the display devices, the operation content determined by the operation content determination means moves in a predetermined direction at a specified position on the display means of the display device. 6. The display system according to claim 5, wherein if the operation is an operation to delete, the aggregated image data stored in the storage unit and the identification information associated with the aggregated image data are deleted. . It has a plurality of display elements, and power is supplied during a period from when the display elements are driven until an image is displayed. After the image is displayed, the image is displayed even if power is not supplied. Display means to continue,
Operation detecting means for detecting an operation by an operator and outputting an operation signal corresponding to the operation;
Storage means for storing a correspondence relationship between identification information assigned to each of the display device other than the device itself and the device itself, and image data of an image displayed on each display device;
An operation content determination unit that acquires an operation signal output from the operation detection unit of the own device or the other display device, and determines the operation content of the operator based on the acquired operation signal;
Correspondence changing means for changing the correspondence stored in the storage means and storing it in the storage means according to the operation content determined by the operation content determining means;
Display control means for driving the display element of the display means, and causing the storage means to display an image corresponding to the image data associated with the identification information of the own device on the display means;
Transmission means for supplying power to the other display device and transmitting image data associated with the identification information of the other display device by the storage means to the other display device. A display device. It has a plurality of display elements, and power is supplied during a period from when the display elements are driven until an image is displayed. After the image is displayed, the image is displayed even if power is not supplied. A computer of a display device having display means that continues and operation detection means that detects an operation by an operator and outputs an operation signal according to the operation,
Storage means for storing a correspondence relationship between identification information assigned to each of the display device other than the device itself and the device itself, and image data of an image displayed on each display device;
An operation content determination unit that acquires an operation signal output from the operation detection unit of the own device or the other display device, and determines the operation content of the operator based on the acquired operation signal;
Correspondence changing means for changing the correspondence stored in the storage means and storing it in the storage means according to the operation content determined by the operation content determining means;
Display control means for driving the display element of the display means, and causing the storage means to display an image corresponding to the image data associated with the identification information of the own device on the display means;
In order to supply power to the other display device and to function as transmission means for transmitting image data associated with the identification information of the other display device to the other display device by the storage means Program.

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