JP2006145986A - Image display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image display device, method, program and storage medium, by which each image display device can know its position in the large screen and independently access data, when a plurality of image display devices are arranged to form a large screen and cooperatively operate. <P>SOLUTION: The plurality of image display devices 100 are arranged in matrix to form the large screen. Each image display device 100 is rectangular and has reed switches 101 and 102 on its left flank and lower flank, and also has magnets 103 and 104 for turning on the reed switches 101 and 102 when put close to the reed switches 101 and 102. Further, the image display device 100 has a logic circuit 300 inside and when four image display devices are arranged in matrix, the logic circuit 300 discriminates the positions of the respective image display devices. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an image display device, and more particularly to an image display device that operates in cooperation with another image display device.

  In recent years, an image display apparatus that is as thin as paper and lightweight enough to carry a plurality of sheets is being developed, and the following method is disclosed as a configuration method of such an image display apparatus (for example, , See Patent Document 1).

  Since the image display device disclosed in Patent Document 1 is much easier to carry than a conventional liquid crystal display device or the like, a plurality of image display devices are brought in at a conference or the like. It would be very convenient if they could be coordinated by arranging them in a matrix.

The nine image display devices in FIG. 9 are arranged in a matrix to form a large screen and display the letters “A”. Since each of the nine image display devices has a different image to be displayed, each of the image display devices needs to know where the image display device is located in the plurality of image display devices. . A method for determining the position of a corresponding image display device among a plurality of image display devices has been proposed (for example, see Patent Document 2).
JP 2001-249366 A JP-A-5-249932

  In the method disclosed in Patent Document 2, one image display device is used as a master image display device, and image data to be displayed on other slave image display devices is always sent via the master image display device. It is supposed to be. The position of the image display device in the large screen is determined in advance, and when data is sent to an image display device with a certain ID, the position is also uniquely specified.

  However, when it is assumed to be used in an office, each person owns an image display device owned by each individual. For example, as shown in FIG. 10, each image display device displays a separate image, and the display contents are displayed. If necessary, it can be moved to an adjacent screen and used. FIG. 10 shows a state in which the display image in the second row A row is moved to the second row B row.

  In such a case, it is necessary for the relative positions of the individual image display apparatuses to recognize each other, but the image display apparatuses with the same ID are not always arranged at the same position. The master image display device is not a method of centralized control, but means for detecting the relative positions of the master image display device that change as needed.

  An object of the present invention is to provide an image display device and method capable of knowing the position of each image display device and independently accessing data when a plurality of image display devices are operated in a coordinated manner. And providing a program and a storage medium.

  In order to achieve the above-described object, an image display device of the present invention is an image display device that operates in cooperation with another image display device, and a detection unit that operates by an operation unit of another adjacent image display device; It is characterized by comprising operating means for operating the detecting means of another adjacent image display device, and discriminating means for determining the position of the image display device based on the operating state of the detecting means.

  According to the present invention, when a coordinated operation is performed with a plurality of image display devices, the position of each image display device can be known, and display processing suitable for the position can be performed.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a diagram schematically showing a configuration of an image display apparatus according to a first embodiment of the present invention.

  The image display apparatus 100 of FIG. 1 forms a large screen by arranging in a plurality of matrices.

  The image display device 100 of FIG. 1 is rectangular, and includes reed switches 101 and 102 on the left side and the lower side, respectively, and the reed switches 101 and 102 when the upper side and the right side are close to the reed switches 101 and 102, respectively. Magnets 103 and 104 (operation means) are provided so that 102 (detection means) is turned ON. Further, the image display apparatus 100 incorporates a logic circuit 300 (discriminating means) shown in FIG. 3 to be described later. This is the same in the following other embodiments.

  FIG. 2 is a diagram showing a state of the reed switch when the image display devices of FIG. 1 are arranged in a matrix of four sheets.

  In FIG. 2, the four image display devices 201 to 204 are arranged in a matrix shape, and the reed switch close to the magnet is turned on. In FIG. 2, the reed switch that is turned on is surrounded by a square. As is clear from FIG. 2, in the four image display devices 201 to 204, the state of the two reed switches is different for each of the four sheets, and there is no single one. By looking at the state of the switch, you can know where you are.

  Note that only the image display device 203 in the lower left does not turn on any switches and cannot be distinguished from the normal mode. Therefore, the current state cannot be recognized, but the “cooperative operation mode” activation means (for example, , Button) and by recognizing that it is a cooperative operation mode by means of that means. That is, in the cooperative operation mode, if all the switches are not ON, it can be recognized that the image display 203 is located at the lower left.

  FIG. 3 is a circuit diagram schematically showing the configuration of the logic circuit 300 built in the image display apparatus 100 of FIG.

  In FIG. 3, the logic circuit 300 determines the position of each image display device when the image display devices 100 of FIG. 1 are arranged in a matrix of four.

  The state of the left reed switch of the image display device 100 is X, the state of the lower reed switch is Y, and the state of the switch that activates the cooperative operation mode is M. The image display device 100 is in the upper left, upper right, lower left, right If the lower positions are represented by outputs A, B, C, and D, the position of one of the four image display devices arranged by the logic circuit 300 of FIG. Can know.

  However, the input of X, Y and M is H when the reed switch is ON, and L when OFF, and the outputs of A, B, C and D are at their positions when H. It shows that there is.

  Furthermore, in this embodiment, the cooperative operation mode is activated by the lower left image display device 203 among the image display devices 201 to 204 arranged in a matrix.

  In the first embodiment, the case where four image display devices are arranged in a matrix to form a large screen has been described, but in the second embodiment, nine image display devices are arranged in a matrix. Even when a large screen is arranged side by side, it can be dealt with by devising a method of arranging switches and magnets.

  FIG. 4 is a diagram schematically showing a configuration of an image forming apparatus according to the second embodiment of the present invention.

  The image forming apparatus shown in FIG. 4 forms a large screen by arranging nine sheets in a matrix.

  The image display apparatus 400 of FIG. 4 is rectangular, and includes one reed switch 401 to 404 (detection means) and one magnet 411 to 414 (operation means) on each side. The reed switch is arranged such that when a plurality of image display devices are arranged, the switch is turned on by the magnet of the adjacent image display device 400.

  FIG. 5 is a diagram showing a state of the reed switch when nine image display devices of FIG. 4 are arranged in a matrix.

  In FIG. 5, nine image display devices 501 to 509 are arranged in a matrix, and the reed switch close to the magnet is turned on. In FIG. 5, the reed switch that is turned on is surrounded by a square. As is clear from FIG. 5, the nine image display devices 501 to 509 have different reed switch states, and none of them is the same. Therefore, each image display device has a reed switch state. By looking, you can know where you are.

  An example of a logic circuit as a means for determining the position can be configured by a method similar to that in the first embodiment.

  FIG. 6 is a perspective view showing the state of the reed switch when the image forming apparatuses according to the third embodiment of the present invention are stacked one above the other.

  In the first and second embodiments, the determination of the position when a plurality of image display devices are arranged in a matrix has been described. However, in the third embodiment, the arrangement of the reed switch and the magnet is devised. By doing so, it is possible to detect the position of the image display device when the image display devices are arranged one above the other.

  In FIG. 6, the image display devices 500 and 510 are each rectangular and are stacked one above the other. The image display device 500 arranged on the lower side includes a reed switch 502 (detecting means) on the upper surface side, a magnet 503 (actuating means) on the left side of the front surface, a magnet 501 on the upper side of the back surface, and a reed switch on the left side of the back surface. 504. The image display device 510 disposed on the upper side includes a reed switch 512 on the upper surface side, a magnet 513 on the right side of the front surface, a magnet 511 on the upper side of the back surface, and a reed switch 514 on the left side of the back surface. Here, the reed switches 502, 504, 512, and 514 correspond to detection means, and the magnets 501, 503, 511, and 513 correspond to operation means.

  As shown in FIG. 6, when the image display devices 500 and 510 are vertically stacked, the reed switch that is turned on differs between the upper image display device 510 and the lower image display device 500. You can know if it is or is located below.

  Although not shown, when three image display devices are stacked, both of the reed switches are turned on in the middle image display device, and the reed switch in which the upper and lower image display devices are turned on is 1. In addition, since the positions of the switches that are turned on are different, even when three sheets are stacked, it is possible to determine whether they are the upper side, the middle side, or the lower side.

  An example of the logic circuit can be configured by a method similar to that of the first or second embodiment.

  FIG. 7 is a circuit diagram schematically showing a configuration of a modification of the logic circuit of FIG.

  When multiple image display devices are arranged in a matrix to form a large screen and the cooperative operation mode is activated, if the image display devices are separated from each other, the reed switch will be turned off. It would be convenient if it could be configured to maintain

  The logic circuit of FIG. 7 has a cooperative operation mode holding function, and once the cooperative operation mode is entered, the cooperative operation mode can be continued even if the image display devices are separated from each other.

  In the logic circuit of FIG. 7, compared to the logic circuit of FIG. 3, flip-flops 701 to 704 and a reset signal R for releasing the cooperative operation mode are added. Since the intermediate outputs a, b, c and d are respectively held by flip-flops, even if the image display devices are separated from each other and the reed switch is turned off, the cooperative operation is performed until the reset signal R is set to H by the user. The mode can be maintained.

  In the first, second, and third embodiments, the combination of the reed switch and the magnet is used to detect that the image display devices are adjacent to each other. However, the present invention is not limited to this. Anything can be used as long as it can be detected that they are adjacent to each other. For example, a combination of a projection (operation means) and a switch (detection means) that is turned on when pressed by the projection can be realized.

  FIG. 8 is a diagram used to explain a method of accessing display data during a cooperative operation by a plurality of image display apparatuses arranged in a line.

  In FIG. 8, the image display devices arranged in a matrix form access to image data to be displayed and acquire this image data as follows.

  That is, each image display apparatus has a wireless access unit 803, accesses the server 801 on the network by the wireless access unit 803, acquires necessary image data from the storage device 802, and displays it. For example, a URL or a file name can be used as a necessary data identifier.

  When moving data displayed on a certain image display device to another image display device, the wireless display unit 803 is used to display the image from the source image display device to the destination image display device. This is performed by notifying only the URL or file name of data to be displayed between devices or via the server 801. This method is advantageous because it is not necessary to exchange the entire display data between the image display devices.

1 is a diagram schematically showing a configuration of an image display device according to a first embodiment of the present invention. It is a figure which shows the state of a reed switch when the image display apparatus of FIG. 1 is arranged in the matrix form of 4 sheets. FIG. 2 is a circuit diagram schematically showing a configuration of a logic circuit 300 built in the image display apparatus 100 of FIG. 1. It is a figure which shows schematically the structure of the image forming apparatus which concerns on the 2nd Embodiment of this invention. It is a figure which shows the state of a reed switch when nine image display apparatuses of FIG. 4 are arranged in matrix form. FIG. 9 is a perspective view illustrating a state of a reed switch when an image forming apparatus according to a third embodiment of the present invention is stacked up and down. FIG. 4 is a circuit diagram schematically showing a configuration of a modified example of the logic circuit of FIG. 3. It is a figure used for demonstrating the access method to the display data at the time of the cooperative operation by the image display apparatus arranged in multiple numbers. It is a figure which shows schematically the structure of the conventional image display apparatus. It is a figure which shows the structure of the conventional image display apparatus roughly, and shows the case where a display position moves.

Explanation of symbols

101, 102, 502, 504 Reed switch 103, 104, 501, 503 Magnet 300 Logic circuit 701, 702, 703, 704 Flip-flop 803 Wireless access means

Claims (10)

In an image display device that operates in cooperation with other image display devices,
Detection means operated by the operation means of another adjacent image display device;
An operating means for operating a detecting means of another adjacent image display device;
An image display apparatus comprising: a determination unit configured to determine a position of the image display device based on an operating state of the detection unit.   The image display device is rectangular, the detection means is arranged on one of the two opposite sides of the image display device, and the operating means is arranged on the other of the two opposite sides of the image display device. The image display device according to claim 1, wherein:   2. The image display device according to claim 1, further comprising: a cooperative operation mode start detection unit that detects that a cooperative operation mode that operates in cooperation with another image display device is started.   After the cooperative operation mode start detecting means detects the start of the cooperative operation mode, the cooperative operation mode holding means for holding the cooperative operation mode even if the position of the image display device in the large screen changes. The image display device according to claim 3, wherein:   The image display device according to claim 3, wherein the determination unit determines the position of the image display device based on an operating state of the detection unit and a detection state of the cooperative operation mode start detection unit.   The image display apparatus according to claim 1, wherein the image display apparatus is rectangular, and both the detection unit and the operation unit are arranged on each side of the image display apparatus.   The image display device according to claim 1, wherein the detection unit and the operation unit are arranged on a side surface of the image display device, respectively.   The image display device according to claim 1, wherein the detection unit and the operation unit are arranged on a front surface or a back surface of the image display device, respectively.   The image display device according to claim 1, wherein the detection unit includes a reed switch or a push button switch, and the operation unit includes a magnet or a protrusion.   The image display apparatus according to claim 1, further comprising: a wireless access unit that wirelessly accesses image data to be displayed and acquires the image data.

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