JP2013064923A - Multi-display control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multi-display control device for enabling images to be appropriately displayed in a multi-display system comprising a plurality of display devices.SOLUTION: An electronic control unit 12 of each of display devices 10 sets an overall display range for displaying images in a multi-display system configured of multiple display devices 10; sets data of images to be displayed in the overall display range with their display positions in the overall display range being specified; sets, on the basis of the positions of the multiple display devices 10, their positional relations in the overall display range and the image displaying capabilities of respective display units 11 of the display devices 10, a responsible display range of the display units 11 constituting a screen of the multi-display system for displaying images in accordance with the data of images; and causes the multiple display devices 10 constituting the multi-display system to display data of images, out of the whole data of images, corresponding to the set responsible display range.

Description

  The present invention relates to a multi-display control device configured to control a display operation of a multi-display configured to include a plurality of display devices and display various images.

  2. Description of the Related Art Conventionally, for example, a display device, a multi-display system, a multi-display method, and a program executed by a computer to realize the method as shown in Patent Document 1 are known. This conventional display device or the like sets one display device constituting a multi-display screen as a representative, collects the illuminance detected by the other display device in this representative display device, The average value of the illuminance detected by each display device constituting the display screen is obtained, the luminance corresponding to the average value is obtained, the luminance of the screen of each display device is adjusted to the obtained luminance, and each display device is obtained. The screen brightness is made uniform. As a result, luminance unevenness of the multi-display screen is prevented from occurring.

  Conventionally, for example, a multi-display system as shown in Patent Document 2 below is also known. In this conventional multi-display system, display data to be displayed on each small liquid crystal panel of the display device group is stored in a frame memory, and the display data written in the frame memory is read out by the frame memory reading circuit and read out at the time of reading. A start address setting circuit sets an address of which display device to display in order to display on a plurality of small liquid crystal panels constituting the display device group, and a line corresponding to the display device group in one horizontal synchronization period according to this address. A video signal is transmitted to the memory, and the video is displayed on the display device. As a result, a large screen size can be displayed using a plurality of small liquid crystal panels.

JP 2009-216809 A JP 2010-156846 A

  Incidentally, in the conventional display device shown in Patent Document 1 and the conventional multi-display system shown in Patent Document 2, it is necessary to regularly fix a plurality of display devices to form a multi-display screen. There is. In other words, in the conventional display device or the like or the multi-display system, when the display devices constituting the multi-display screen are irregularly arranged, or each display device moves, the configuration position thereof is changed. We do not consider that it can change. That is, the conventional display device and the like and the multi-display system are limited to a case where a plurality of display devices constituting the multi-display screen are regularly fixed. Therefore, when a multi-display screen is constituted by a plurality of display devices that are irregularly arranged or movable as described above, an appropriate image (video) is used in the conventional display device or the multi-display system. ) May be difficult to display.

  The present invention has been made to cope with the above-described problems, and one of the purposes thereof is a case where the multi-display is irregularly arranged or configured by a plurality of movable display devices. Even so, an object of the present invention is to provide a multi-display control device that appropriately displays an image.

  In order to achieve the above object, a feature of the present invention is that a multi-display control device includes a control unit that controls display of an image in a multi-display configured by a plurality of display devices that display an image. And the control means sets an entire display range for displaying an image on the multi-display configured by the plurality of display devices, and the set entire display range The image data to be displayed at is set by specifying the display position within the entire display range, the positional relationship between the positions of the plurality of display devices constituting the multi-display and the entire display range, A display unit of each of the plurality of display devices that configures a multi-display screen and displays an image. Based on the display capability of the image, a responsible display range representing a range in which the display units of the plurality of display devices are responsible for displaying the image based on the image data is set within the entire display range, and the multi display An object of the present invention is to display image data corresponding to the set assigned display range among the image data on the plurality of display devices constituting the display. In this case, the entire display range for displaying the image on the multi-display constituted by the communication means for the control means to communicate with the plurality of display devices and the plurality of display devices. Display data setting means for specifying the display position in the whole display range, and setting the display data in the whole display range set by the whole display range setting means And the positional relationship between the positions of the plurality of display devices constituting the multi-display and the entire display range, and the respective display units of the plurality of display devices constituting the multi-display screen and displaying images The display unit of the plurality of display devices based on the image data within the entire display range. A display area setting means for setting a display area in charge representing the display area, and a plurality of display devices constituting the multi-display to the set display area in charge of the image. Display instruction means for displaying the corresponding image data can be provided.

  In this case, when the responsible display range is set, the control means causes the plurality of display devices constituting the multi-display to set the responsible display range, and sets the set responsible display range. The assigned display range information can be acquired. In this case, more specifically, the plurality of display devices constituting the multi-display acquire the entire display range information indicating the entire display range, detect each current position, and display the entire display range information according to the entire display range information. And the detected current position is compared to determine the positional relationship of the current position with respect to the entire display range, and the positional relationship of the current position with respect to the determined entire display range and the multi-display screen are configured. Then, based on the image display capability of the display unit that displays the image, a responsible display range that represents a range in which the display unit is responsible for displaying the image based on the image data is set within the entire display range. can do. In this case, the plurality of display devices constituting the multi-display include an acquisition unit that acquires and acquires the entire display range information that represents the entire display range from the control unit, a position detection unit that detects a current position, Comparison determining means for comparing the entire display range represented by the entire display range information and the detected current position to determine the positional relationship of the current position with respect to the entire display range, and the position of the current position with respect to the determined entire display range The display unit is responsible for displaying an image based on the image data within the entire display range based on the relationship and the image display capability of the display unit that configures the multi-display screen and displays the image. It is possible to provide charge display range setting means for setting a charge display range representing the range to be performed.

  According to these, a multi display can be comprised from a some display apparatus. And in such a multi display, in order to display an image appropriately, the whole display range in a multi display is set, the positional relationship of each display device with respect to this whole display range is determined, and the display unit of each display device In consideration of display capability (image displayable size), it is possible to set a responsible display range in which each display device (display unit) is responsible for display within the entire display range. Each display device constitutes a multi-display, and among the image data to be displayed within the entire display range, an image is displayed based on the image data corresponding to the set assigned display range, thereby displaying a plurality of displays. Even a multi-display composed of devices can display images with extremely high quality. Even when the display device constituting the multi-display moves, by setting the responsible display range along with this movement, the image on the multi-display (entire display range) even if the display device is moving. Can be continued, or the image displayed on the multi-display (entire display range) can be changed in conjunction with the movement of the display device.

  Furthermore, another feature of the present invention is that the display device configuring the multi-display is mounted on a movable vehicle, and the display unit configuring the multi-display screen is an outer surface of the outer plate of the vehicle. It is also provided above. According to this, for example, by arranging (parking) vehicles in a large-scale parking lot, the vehicle, that is, the display unit can form a large-scale multi-display screen very easily. Further, by increasing the number of vehicles to be arranged (parked), that is, the number of display units, so-called display resolution is improved, and a large-scale and high-definition multi-display screen can be easily configured. In this case, each image can be displayed in accordance with the position of the display device without arranging the display devices regularly, and a large-scale multi-display screen can be easily configured.

1 is a schematic diagram illustrating a multi-display including a plurality of movable display devices (vehicles) according to an embodiment of the present invention. 1 is a block diagram schematically showing a configuration of a display device according to an embodiment of the present invention. It is the schematic for demonstrating the state which provided the display part in the display apparatus of FIG. 2 on the outer surface of the outer plate | board of a vehicle. 2 is a flowchart of a display control program executed by the electronic control unit in the control apparatus of FIG. 1 according to the embodiment of the present invention. It is a figure for demonstrating the state by which the image was displayed on the multi-display screen of FIG.

  Hereinafter, a multi-display control apparatus according to an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the multi display M includes a plurality of movable display devices 10. As described later, the display device 10 selected as a representative for comprehensively controlling the display operation on the multi-display screen MS is selected from the plurality of display devices 10 constituting the multi-display M in this way. This corresponds to a multi-display control device. Hereinafter, the movable display device 10 constituting the multi-display M (multi-display screen MS) will be described.

  As schematically shown in FIG. 2, the display device 10 includes a display unit 11 that displays an image (video). The display unit 11 includes a well-known self-luminous display panel (for example, a plasma display panel or an organic EL display panel) or a transmitted light display panel (for example, a liquid crystal display panel having a backlight). A well-known drive circuit (not shown) for operating the device is provided.

  Here, in the present embodiment, the display device 10 is configured using a movable vehicle. That is, in the present embodiment, for the display unit 11 constituting the display device 10, for example, the above-described thin plate-like self-luminous display panel or transmitted light display panel is pasted on the outer surface of the outer plate of the vehicle. In this way, an image (video) can be displayed outside the vehicle. Specifically, as schematically shown in FIG. 3, a hood (bonnet) that forms the outer shape of the vehicle, left and right side panels (fenders, door panels, pillars, etc.), roof, trunk lid (rear gate), or necessary When it is possible to ensure transparency, a thin display unit 11 is attached to the front, rear, and side glasses, and a transparent protective layer (for example, polycarbonate or the like) is attached to the outer surface of the attached display unit 11. Resin material). Thereby, the affixed display unit 11 can display (reproduce) various images (videos) toward the outside of the vehicle.

  As shown in FIG. 2, the display device 10 includes an electronic control unit 12, a communication unit 13, a storage unit 14, and a position detection unit 15 as a minimum necessary configuration.

  The electronic control unit 12 is a microcomputer whose main components are a CPU, a ROM, a RAM, and the like, and comprehensively controls the display operation of the display device 10 by executing various programs including a program described later. Therefore, the communication unit 13, the storage unit 14, and the position detection unit 15 are connected to the electronic control unit 12 so as to be electrically communicable.

  The communication unit 13 enables various communications with the outside. Note that the communication method itself by the communication unit 13 is not directly related to the present invention, and is a well-known communication method (for example, near field communication or communication base using Bluetooth (registered trademark) or Wi-Fi (registered trademark)). It is possible to employ a mobile phone line including a station and communication using an Internet line network). Thereby, for example, when configuring the multi-display M (more specifically, the multi-display screen MS), the electronic control unit 12 communicates with the electronic control unit 12 in the other display device 10 using the communication unit 13. Or communication with the outside (for example, a mobile information terminal device such as a mobile phone or a smartphone owned by an information providing center or a user).

  The storage unit 14 includes a storage medium such as a hard disk and a semiconductor memory, and a drive device for the storage medium. The electronic control unit 12 controls the display operation of the display device 10 or the multi-display screen MS in an integrated manner. Various necessary programs and various data are stored in advance or in an updatable manner. Here, the various data stored in the storage unit 14 includes, for example, an information table required when the multi-display M is configured by a plurality of display devices 10 as described later. As is well known in the art, this information table is formed, for example, by the number of display devices 10 (in other words, each display device 10 required for the configuration of the multi-display M (more specifically, the multi-display screen MS)). Display unit information indicating the size of the multi-display screen MS), display position information indicating the position of the image (video) to be displayed, and each display device 10 when displaying the image (video) on the multi-display screen MS Brightness value information representing the brightness required for the display, representative selection information representing the display device 10 that collectively controls the whole when displaying an image (video) on the multi-display screen MS, multi-display M (more specifically, multi-display M It is composed of participation information representing participation in the configuration of the display screen MS).

  Further, image (video) data to be displayed on the display unit 11 is stored in a predetermined storage position of the storage unit 14 so as to be searchable. Here, the image (video) data stored in the predetermined storage position of the storage unit 14 may be specific image (video) data stored in advance or via a network (for example, an Internet network). Updatable image (video) data provided from a communicably connected external device (specifically, an information providing center that provides various types of information or a portable information terminal (mobile phone, smartphone, etc.) owned by the user) .

  The position detection unit 15 detects the current position of the display device 10 (that is, a vehicle in the present embodiment). For this reason, the position detection unit 15 acquires, for example, GPS signals respectively transmitted from three or more GPS (Global Positioning System) satellites, and based on these GPS signals, the current position of the display device 10 (that is, the vehicle). Detecting a transmission signal from a communication base station for a mobile phone line in cooperation with the communication unit 13, and detecting the current position of the display device 10 (that is, the vehicle) based on the transmission signal, Alternatively, the current position of the display device 10 (ie, the vehicle) is detected based on both the GPS signal from the GPS satellite and the transmission signal from the communication base station. The position detection unit 15 outputs current position information indicating the detected current position to the electronic control unit 12.

  Next, the operation of the display device 10 configured as described above will be described. In the display device 10, various images (videos) can be displayed or reproduced on the display unit 11 in accordance with control by the electronic control unit 12. Here, in this embodiment, the display unit 11 of the display device 10 is provided on the outer plate of the vehicle. Therefore, the electronic control unit 12 acquires image (video) data stored in a predetermined storage position of the storage unit 14, and supplies the acquired image (video) data to the display unit 11 via a known drive circuit. By doing so, the display unit 11 can display various images (videos) and messages based on the supplied image (video) data toward the outside of the vehicle.

  A plurality of display devices 10 that can be moved, in other words, freely laid out in this way, can cooperate to form a multi-display M (more specifically, a multi-display screen MS). Various images (videos) and messages can be displayed on the multi-display screen MS. Hereinafter, a display operation in which the multi-display M is configured by the plurality of movable display devices 10 and an image (video) is displayed on the multi-display screen MS will be described in detail.

  Here, in the following description, as schematically shown in FIG. 1, 28 display devices 10 (vehicles) are grouped in advance, and these display devices 10 (vehicles) cooperate to display. Assume a situation where a multi-display M composed of devices 10_1, 10_2,..., 10_27, 10_28 (vehicle) is configured. In this assumption, as schematically shown in FIG. 1, for the sake of convenience, 28 display devices 10 (vehicles) are arranged so as to face one direction, but each display device 10 (vehicle) is arranged. Since the layout can be freely performed, the direction is not limited and may be any direction, as will be apparent from the control of the display operation described later. In this assumption, the display device 10_1 (vehicle) at an arbitrary position of the multi-display M configured (for example, the upper left position of the multi-display M configured as shown in FIG. 1) is selected as a representative. The display device 10_1 (more specifically, the electronic control unit 12) controls the display operation of the other display devices 10_2,..., 10_27, 10_28 (vehicle) to display an image (video) on the multi-display screen MS. Shall.

  When the display device 10_1 (vehicle) is selected as a representative, the electronic control unit 12 of the display device 10_1 can exhibit a function as a multi-display control device. Therefore, the electronic control unit 12 starts executing the display control program shown in FIG. That is, the electronic control unit 12 starts execution of the display control program in step S10 in the flowchart shown in FIG. 4, and specifies a plurality of display devices 10 constituting the multi-display M in subsequent step S11. The entire display range for displaying an image (video), that is, the multi-display screen MS is set by the display device 10.

  Specifically, the electronic control unit 12 of the display device 10_1 has first selected (selected) the representative selection information in the information table stored in the predetermined storage position of the storage unit 14 as a representative. Rewrite the information to represent. Further, the electronic control unit 12 is stored in a predetermined storage position of the storage unit 14 in order to form the multi-display M together with the display devices 10_2,..., 10_27, 10_28 (vehicles) grouped in advance as described above. , 10_27, 10_28 (vehicle) is rewritten with respect to the participation information in the information table being displayed, the information indicating that the display device 10_2 participates in the configuration of the multi-display M. As a result, the electronic control unit 12 this time, the multi-display M is configured by the display devices 10_1,..., 10_28 (vehicles), in other words, the display devices 10_1,. To participate in.

  On the other hand, the electronic control unit 12 transmits the rewritten representative selection information and participation information to the other display devices 10_2, ..., 10_27, 10_28 (vehicles) via the communication unit 13. Accordingly, in the other display devices 10_2,..., 10_27, 10_28 (vehicle), it is understood that the display device 10_1 (vehicle) is selected as a representative, and in accordance with an instruction from the display device 10_1 (vehicle), An image (video) on the screen MS of the multi-display M participating in the configuration is displayed.

  Also, the electronic control unit 12 of the display device 10_1 requests the other display devices 10_2,..., 10_27, 10_28 (vehicles) participating in the configuration of the multi-display M this time to provide the current position information via the communication unit 13. Request information to be sent. In the other display devices 10_2,..., 10_27, 10_28 (vehicles), each electronic control unit 12 obtains request information via the communication unit 13, and represents the current position detected by the position detection unit 15. Get information. Then, the electronic control units 12 of the other display devices 10_2,..., 10_27, 10_28 (vehicles) transmit the current position information acquired from the position detection unit 15 to the display device 10_1 via the communication unit 13, respectively.

  In the display device 10_1, the electronic control unit 12 receives and acquires the current position information transmitted from the other display devices 10_2, ..., 10_27, 10_28 (vehicles) via the communication unit 13, respectively. The electronic control unit 12 then displays the multi-display screen MS corresponding to the entire display range based on the current positions of the other display devices 10_2, ..., 10_27, 10_28 (vehicles) represented by the acquired current position information. Set the range (size). When the range (size) of the multi-display screen MS is set in this way, the electronic control unit 12 provides the entire display range information indicating the set range (size) of the multi-display screen MS via the communication unit 13. , 10_27, 10_28 (vehicle). Here, as the entire display range information, for example, coordinate data composed of longitude and latitude can be used. Thereby, all the display devices 10_1,..., 10_28 (vehicle) constituting the multi-display M can share and grasp the range (size) of the multi-display screen MS. Then, when the electronic control unit 12 of the display device 10_1 specifies a plurality of display devices 10 constituting the multi-display M and sets a multi-display screen MS for displaying an image (video) by these display devices 10, a step is performed. Proceed to S12.

  In the present embodiment, the electronic control unit 12 of the display device 10_1 sets the entire display range, that is, the multi-display screen MS, based on the current positions of the other display devices 10_2, ..., 10_27, 10_28 (vehicles). Implement as follows. In this case, the electronic control unit 12 of the display device 10_1 includes the entire display range based on the number of all display devices 10 (vehicles) that participate in the configuration of the multi-display M, including itself (28 in this embodiment). That is, it is possible to implement so as to set the multi-display screen MS.

  In step S12, the electronic control unit 12 of the display device 10_1 sets image (video) data to be displayed on the configured multi-display M (more specifically, the multi-display screen MS set in step S11). The set image (video) data is transmitted to the other display devices 10_2, ..., 10_27, 10_28 (vehicle).

  Specifically, the electronic control unit 12 of the display device 10_1 has image data (for example, still image data such as a photograph) or video data (for example, commercial film or animation) stored in a predetermined storage position of the storage unit 14. Etc.). These data may be data stored in advance as described above, or may be data provided from the outside (information providing center or user's portable information terminal). The electronic control unit 12 then displays the display position of the image (video) displayed based on the acquired image (video) data with respect to the range (size) of the multi-display screen MS set in step S11. Identify the relationship. Then, the electronic control unit 12 rewrites the display position information in the information table stored in the predetermined storage position of the storage unit 14 to information indicating the specified positional relationship.

  As described above, when the image (video) data to be displayed (or reproduced) on the multi-display screen MS is set and the display position information is rewritten, the electronic control unit 12 receives the image (video) data via the communication unit 13. And display position information is transmitted to other display apparatus 10_2, ..., 10_27, 10_28 (vehicle). In other display devices 10_2,..., 10_27, 10_28 (vehicles), each electronic control unit 12 receives and acquires image (video) data and display position information via the communication unit 13. Each electronic control unit 12 stores the acquired image (video) data and display position information in a predetermined storage position of the storage unit 14. Thereby, all the display devices 10_1,..., 10_28 (vehicle) constituting the multi-display M (multi-display screen MS) can share and grasp images (videos) and display positions displayed on the multi-display screen MS. . The electronic control unit 12 of the display device 10_1 sets image (video) data to be displayed on the multi-display screen MS, and sets the set image (video) data to the other display devices 10_2, ..., 10_27, 10_28 (vehicles). ), The process proceeds to step S13.

  In step S13, the electronic control unit 12 of the display device 10_1 displays the display range (namely, charge) of the image (video) in charge on the multi-display screen MS that is configured based on the entire display range information transmitted in step S11. In addition to setting the display range, the other display devices 10_2, ..., 10_27, 10_28 (vehicles) are instructed to set the assigned display range. Hereinafter, the setting of the assigned display range will be specifically described.

  As described above, the plurality of display devices 10_1,..., 10_28 constituting the multi-display M (multi-display screen MS) can be moved independently, in other words, a free layout is possible. . Therefore, as described above, when the range (size) of the multi-display screen MS is set, each display device 10 follows the set boundary line of the multi-display screen MS indicated by a broken line in FIG. As shown in FIG. 1, a situation where non-uniform alignment with the boundary line of the multi-display screen MS is likely to occur. Specifically, in FIG. 1, for example, the display device 10_5 is located inside the boundary line of the multi-display screen MS, and the display device 10_6 is located outside the boundary line of the multi-display screen MS. ing. Further, when the display device 10 is movable, a situation in which the intervals between the adjacent display devices 10 are unevenly arranged in the display area of the multi-display screen MS is likely to occur. Specifically, in FIG. 1, for example, the interval between the display device 10_8 and the display device 10_15 is wider than the interval between the other display devices 10, and conversely, the display device 10_12 and the display device 10_12 are displayed. The space between the device 10_19 is narrower than the space between the other display devices 10.

  As described above, when each display device 10 displays an image (video) on the entire surface of the display unit 11 in a situation where the display devices 10 are non-uniformly aligned with the boundary line of the multi-display screen MS, the boundary portion of the multi-display screen MS is displayed. Becomes non-uniform, or non-uniform display such as so-called dot omission occurs, so that the display quality of the image (video) of the entire multi-display screen MS is deteriorated. For this reason, all the display devices 10_1,..., 10_28 have their own positional relationship with respect to the range (size) of the multi-display screen MS set in step S11 and the image ( In consideration of the display capability such as the displayable size of the video), the display range in charge is set so that the above-described non-uniform display is not generated as much as possible.

  More specifically, in each of the display devices 10_1,..., 10_28, each electronic control unit 12 acquires its current position information (for example, coordinate data including longitude and latitude) detected by the position detection unit 15. To do. Next, each electronic control unit 12 displays the entire display range represented by the entire display range information acquired in step S11, that is, the range of the multi-display screen MS (specifically, for example, represented by longitude and latitude). (Coordinate data) and the detected current position information are compared, and it is determined at which position it is currently located with respect to the range (boundary) of the multi-display screen MS. Subsequently, each electronic control unit 12 is based on the display capability of the display unit 11 and is within the range of the multi-display screen MS at the current position and can display an image (video). (Alternatively, the ratio of the display range), that is, the assigned display range is set.

  For example, in the display device 10_6 shown in FIG. 1, since a part of the display unit 11 protrudes from the boundary line of the multi-display screen MS, the display range excluding the protruding part is set as the assigned display range. On the other hand, in the display device 10_5 illustrated in FIG. 1, since the entire display unit 11 is within the boundary line of the multi-display screen MS, the entire display range of the display unit 11 is set as the assigned display range. Further, for example, for the display devices 10_8 and 10_15 and the display devices 10_12 and 10_19 shown in FIG. Since it is within the range of the display screen MS, the entire display range of the display unit 11 is set as the assigned display range. In the case where the intervals are not uniform, the display device 10 is movable, so that the intervals can be made uniform.

  Thus, when the respective responsible display ranges in the other display devices 10_2,..., 10_27, 10_28 are set, each of these electronic control units 12 displays the responsible display range information indicating the responsible display range and the responsible display range. Setting completion information indicating that the setting is completed is transmitted to the display device 10_1 via the communication unit 13. In the electronic control unit 12 of the display device 10_1, the setting of the responsible display range is completed, and the responsible display range information and the setting completion information are obtained from the other display devices 10_2, ..., 10_27, 10_28 via the communication unit 13. If received, the process proceeds to step S14. The electronic control unit 12 of the display device 10_1 stores the assigned display range information received from the other display devices 10_2,..., 10_27, 10_28 in a predetermined storage position of the storage unit 14 so as to be searchable.

  In step S14, the electronic control unit 12 of the display device 10_1 displays an image (video) on the multi-display M (more specifically, the multi-display screen MS) based on the image (video) data set in step S12. indicate. That is, the electronic control unit 12 transmits the luminance value information in the information table to the other display devices 10_2,..., 10_27, 10_28 via the communication unit 13 together with the display start information instructing the display start. Accordingly, the electronic control unit 12 of the display device 10_1 displays a corresponding image (video) based on the image (video) data set in step S12 and the display position information in the assigned display range set in step S13. indicate. On the other hand, in the other display devices 10_2,..., 10_27, 10_28, each electronic control unit 12 has the image (video) data and display acquired in step S12 in the assigned display range set in step S13. A corresponding image (video) is displayed based on the position information. In this way, all the display devices 10_1,..., 10_28 constituting the multi-display M (multi-display screen MS) display the corresponding image (video) in the assigned display range, so that as shown in FIG. A high-quality image (video) can be displayed or reproduced as the entire display screen MS.

  When the display start information and the luminance value information are transmitted and the predetermined image (video) is displayed (reproduced) on the multi-display screen MS in this way, the electronic control unit 12 of the display device 10_1 proceeds to step S15. Proceed and finish execution of the control program.

  Here, luminance value information shared by all the display devices 10_1,..., 10_28 when displaying an image (video) on the multi-display screen MS will be briefly described. When the display device 10_1 is selected (selected) as a representative, the electronic control unit 12 of the display device 10_1 (vehicle) is around the display unit 11 detected by an illuminance sensor (not shown) provided in the display device 10 (that is, In this embodiment, illuminance information representing the illuminance around the vehicle) is acquired, and the illuminance around the display unit 11 represented by the acquired illuminance information is written in the information table stored in the predetermined storage position of the storage unit 14. On the other hand, the electronic control unit 12 transmits illuminance request information for requesting illuminance information to the other display devices 10_2, ..., 10_27, 10_28 (vehicles) via the communication unit 13. In other display devices 10_2,..., 10_27, 10_28 (vehicles) constituting the multi-display M (multi-display screen MS), each electronic control unit 12 acquires illuminance request information via the communication unit 13. The illuminance information around the display unit 11 (that is, around the vehicle) detected by the illuminance sensor is transmitted together with the predetermined identification information for identifying the display device 10. Thereby, the electronic control unit 12 of the display device 10_1 (vehicle) acquires the illuminance information and the identification information transmitted from the other display devices 10_2, ..., 10_27, 10_28 (vehicle) via the communication unit 13, These illuminance information and identification information are associated with each other and stored in a predetermined storage position of the storage unit 14 so as to be searchable.

  Subsequently, the electronic control unit 12 of the display device 10_1 uses the illuminance around the display unit 11 of each display device 10_2,... For example, the average value of the illuminance (average illuminance value) from which the maximum value and the minimum value are removed is determined from the self illuminance written in (1). Then, the electronic control unit 12 determines a luminance value corresponding to the determined average illuminance value, and displays luminance value information representing the determined luminance value in an information table stored in a predetermined storage position of the storage unit 14. At the same time, as described above, the luminance value information is transmitted to the other display devices 10_2,..., 10_27, 10_28 through the communication unit 13 together with the display start information.

  As described above, when the electronic control units 12 of all the display devices 10_1,..., 10_28 constituting the multi-display M (multi-display screen MS) share the luminance value information, the electronic control unit is based on the shared luminance value information. 12 adjusts the luminance of the display unit 11. Thus, even when the plurality of display devices 10_1,..., 10_28 cooperate to form a multi-display M (multi-display screen MS) and display an image (video), each display device 10_1,. The brightness of the display unit 11 is made uniform, and deterioration in appearance due to uneven brightness of the multi-display M (multi-display screen MS) can be effectively prevented.

  As can be understood from the above description, according to the above embodiment, a multi-display M (multi-display screen MS) can be configured from a plurality of movable display devices 10. In order to appropriately display (reproduce) an image (video) on such a multi-display M (multi-display screen MS), an entire display range on the multi-display M, that is, a multi-display screen MS is set. Each display device 10 (determining the positional relationship of each display device 10 with respect to the display range (multi-display screen MS) and considering the display capability (displayable size of images and videos) of the display unit 11 of each display device 10 It is possible to set a display range for which the display unit 11) is responsible for display. Each display device 10 constitutes the multi-display M, and among the image (video) data displayed in the entire display range (multi-display screen MS), the image (video) data corresponding to the set assigned display range is displayed. By displaying (reproducing) an image (video) based on it, even a multi-display M composed of a plurality of display devices 10 that can be moved, in other words, can be freely laid out, has extremely high quality. An image (video) can be displayed (reproduced). Even when the display device 10 constituting the multi-display M (multi-display screen MS) moves, even if the display device 10 is moving by setting a responsible display range in accordance with this movement. Continue to display (play) images (video) on the multi-display M (multi-display screen MS), or change the image displayed on the multi-display M (multi-display screen MS) in conjunction with the movement of the display device 10 can do.

  In addition, the display unit 11 of the display device 10 is installed (attached) on the outer surface of the outer plate of the vehicle, and the entire vehicle is configured as if it is the display unit 11 of the display device 10. By arranging (parking) vehicles in a large-scale parking lot, the vehicle, that is, the display unit 11 of the display device 10 can form a large-scale multi-display screen very easily. Further, by increasing the number of vehicles to be arranged (parked), that is, the number of display units 11 of the display device 10, so-called display resolution is improved, and a large-scale and high-definition multi-display screen can be easily configured. can do. In this case, each display unit 11 can display an image corresponding to the position of the display device 10 without arranging the display devices 10 regularly, thereby easily configuring a large-scale multi-display screen. be able to.

  The implementation of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the object of the present invention.

  For example, in the said embodiment, it implemented as what was previously grouped so that the display apparatus 10_1-display apparatus 10_28 may comprise the multi display M (multi-display screen MS). In this case, in order to configure the multi-display M (multi-display screen MS), the plurality of display devices 10 do not necessarily have to be grouped in advance.

  Thus, in the case where they are not grouped in advance, for example, an electronic control unit 12 of a certain display device 10 (that is, an electronic control unit 12 that functions as a multi-display control device) Notification information that prompts the user to participate in the configuration of the multi-display M is transmitted to the electronic control units 12 of the plurality of display devices 10. When the electronic control unit 12 functioning as a multi-display control device receives participation request information that desires to participate in the configuration of the multi-display M from a plurality of other display devices 10 in response to the notification information. They can be grouped and implemented in the same manner as in the above embodiment. Alternatively, for example, when the electronic control unit 12 of a certain display device 10 (that is, the electronic control unit 12 functioning as a multi-display control device) attempts to configure the multi-display M, the multi-display screen MS to be configured is included in the multi-display screen MS to be configured. When there is a display device 10 that is not grouped in advance, the display device 10 can be included in the multi-display M configuration regardless of whether or not the display device 10 is grouped. In this case, for example, the electronic control unit 12 functioning as a multi-display control device uses only the display unit 10 of the display device 10 existing in the vicinity, and the multi-display M (multi-display M The display screen MS) may be configured to display an image (video).

  Moreover, in the said embodiment, it implemented as what was previously grouped so that the display apparatus 10_1-display apparatus 10_28 may comprise the multi display M (multi-display screen MS). And it implemented so that the multi-display M (multi-display screen MS) might be comprised using all the display apparatuses 10_1-10_28 grouped in this way. In this case, for example, in accordance with the size of an image (video) to be displayed (reproduced) on the multi-display screen MS, the display device 10 that is a target for displaying an image (video) from the display devices 10 grouped in advance. It is also possible to narrow down and implement. Accordingly, an appropriate entire display range, that is, the size of the multi-display screen MS can be set, and for example, an image (video) can be displayed (reproduced) with high quality without unnecessary enlargement. .

  In the above embodiment, after the multi-display M (multi-display screen MS) is composed of the movable display devices 10, the display device 10 does not move when an image (video) is displayed (reproduced). Implemented as a thing. However, even when the display device 10 constituting the multi-display M (multi-display screen MS) moves to some extent, it is possible to continue displaying (reproducing) an image (video) appropriately on the multi-display screen MS. Is possible. That is, in the control program shown in FIG. 4, in step S13, each display device 10 sets the responsible display range after grasping the positional relationship between its own position and the entire display range, that is, the multi-display screen MS. It is like that. For this reason, for example, even when the display device 10 moves, by changing the charge display range in accordance with the movement, the display unit 11 moves to a certain extent (specifically, the display unit 11 is within the area of the multi-display screen MS). The moving display device 10 can continuously display (reproduce) an image (video) while forming the multi-display M (multi-display screen MS). .

  Further, as described above, in step S13 of the control program shown in FIG. 4, each display device 10 grasps the positional relationship between its own position and the entire display range, that is, the multi-display screen MS, and then the responsible display range. Is set. Therefore, for example, when all the display devices 10 constituting the multi-display M (multi-display screen MS) move integrally, that is, when the multi-display M (multi-display screen MS) moves in one direction. In addition, each display device 10 changes its assigned display range in accordance with movement, so that the multi-display M (multi-display screen MS) can display (reproduce) an image (video) while moving.

  Further, as described above, in step S13 of the control program shown in FIG. 4, each display device 10 recognizes the positional relationship between its own position and the entire display range, that is, the multi-display screen MS, and then displays the charge. Implemented to set the range. In this case, it is needless to say that it can be implemented so that a person other than itself (for example, the electronic control unit 12 of the display device 10_1) sets the assigned display range of all the display devices 10. In this case, for example, the electronic control unit 12 of the display device 10_1 grasps the positional relationship between the current position of all the display devices 10 and the entire display range, that is, the multi-display screen MS, and in the display unit 11 of each display device 10. By taking the display capability into consideration, it becomes possible to set the display range in charge of all the display devices 10.

  Further, in the above-described embodiment, the display unit 11 made of a well-known self-luminous display panel or transmitted light display panel having a thin plate shape is installed (attached) on the outer surface of the outer plate of the vehicle, and the entire vehicle It was implemented as if it were the display device 10. Accordingly, the display device 10 can be moved, and a plurality of display devices 10 that can freely move and can have a free layout constitute the multi-display M (multi-display screen MS).

  In this case, as long as the display device 10 itself can be freely moved and can be freely laid out, it is needless to say that any display device 10 can be adopted to constitute the multi-display M (multi-display screen MS). . Examples of such a display device 10 include a well-known self-luminous display panel (for example, a plasma display panel or an organic EL display panel) or a transmitted light display panel (for example, a liquid crystal display panel having a backlight). A display device having a so-called housing, a mobile phone, a smartphone, a tablet terminal, a laptop computer, or the like can be employed. Since these devices are also movable and can be freely laid out in the same manner as the display device 10 (vehicle) described in the above embodiment, for example, by executing the control program shown in FIG. The same effect as the embodiment can be obtained.

  DESCRIPTION OF SYMBOLS 10 ... Display apparatus, 11 ... Display part, 12 ... Electronic control unit, 13 ... Communication unit, 14 ... Memory | storage unit, 15 ... Position detection unit, M ... Multi-display, MS ... Multi-display screen

Claims (4)

In a multi-display control device comprising a control means for controlling display of an image in a multi-display configured by a plurality of display devices for displaying images,
The multi-display is composed of a plurality of display devices,
The control means includes
Setting an overall display range for displaying an image in the multi-display configured by the plurality of display devices;
The image data to be displayed in the set whole display range is set by specifying the display position in the whole display range,
The positional relationship between the positions of the plurality of display devices constituting the multi-display and the entire display range, and the images by the respective display units of the plurality of display devices constituting the multi-display screen and displaying images Based on the display capability of the display unit, the display unit of the plurality of display devices in the entire display range, set a responsible display range representing a range responsible for image display based on the image data,
A multi-display control apparatus that displays image data corresponding to the set assigned display range among the image data on the plurality of display devices constituting the multi-display. The multi-display control device according to claim 1,
The control means includes
When the responsible display range is set, the responsible display range is set to each of the plurality of display devices constituting the multi-display, and the responsible display range information representing the set responsible display range is acquired. A multi-display control device. In the multi-display control device according to claim 2,
The plurality of display devices constituting the multi-display are:
Obtaining the entire display range information representing the entire display range;
Detect each current position,
Compare the entire display range represented by the entire display range information and the detected current position, determine the positional relationship of the current position with respect to the entire display range,
Based on the positional relationship of the current position with respect to the determined overall display range and the display capability of the image in the display unit that configures the multi-display screen and displays an image, the display unit within the overall display range A multi-display control device that sets a responsible display range representing a range responsible for displaying an image based on image data. In the multi-display control device according to any one of claims 1 to 3,
The display device constituting the multi-display is mounted on a movable vehicle, and the display part constituting the multi-display screen is provided on an outer surface of an outer plate of the vehicle. Multi-display control device.

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