JP5548898B2 - Video display device - Google Patents

Description

  The present invention relates to a video display device that is used as a single display device by bundling a plurality of video display devices.

  A conventional video display device is designed to occupy the entire screen when displaying a video signal from one video control device, and images on a display unit of a television, a personal computer, a measuring instrument, etc. The video display device was occupied. Therefore, in order to display a plurality of independent videos, it is necessary to prepare video display devices as many as the number of videos to be displayed. Of course, time division multiplexing or spatial multiplexing is possible, that is, it is possible to display a plurality of images on a single video display device by performing time division multiplexing using a switching device. It is also possible to perform spatial multiplexing using a screen splitting device, create a composite video by combining a plurality of videos, and display the composite video on a single screen. However, in order to combine and display a plurality of images, a separate control device that performs the combining operation is required. Contrary to the above case, a display in which one video is shared by a plurality of display devices is known as a multi-monitor (or multi-display) display and is often used. This constitutes a video display device having a physically large screen by connecting a plurality of display devices, and each display device is placed at a position of the display device in the video display device from a common control device. Each corresponding video signal is displayed. A plurality of display devices are connected to form a video display device having a physically large screen. Each display device needs to be provided with a video signal cut out in the area of the display device. A separate control device for supplying each video signal to the display device is required.

Japanese Patent No. 3520318

  A single video display device enables the simultaneous display of multiple different standard material images, and a control device is required even when a multi-display video display device in which each display device is arbitrarily arranged vertically and horizontally is configured. Instead, one image can be displayed on the video display device.

  In general, the present invention provides various video signals such as televisions, personal computers, measuring instrument display contents, digital cameras, mobile phone screens, e-books, e-newspapers, etc. by making each video signal a digital video signal in accordance with a unified standard. It is possible to display any number of video data in a display form at an arbitrary position of a single video display device while allowing any number of images to overlap. Further, according to the present invention, a continuous display screen can be obtained by connecting display devices, and the continuous display screen can be arbitrarily set in a plurality of display screens as if it were originally one huge screen. It is possible to display seamlessly at the position. The connected display devices may have different resolutions and screen update intervals such as black and white and color, and still image and moving image. A user can connect a favorite display device to his / her favorite position and handle it as one video display device. The digital video signal used in the present invention may be independent of the screen size of the display device. For example, when the screen size of the display device is 100 × 100 pixels and the video signal is 120 × 80 pixels, a part of the video signal is displayed, and the portion that protrudes from the display device is displayed on another display device. Or rejected.

  The video signal is a video signal packet designating a display start position. As shown in FIG. 1, the display device is provided with a plurality of input / output terminals and at least one input / output terminal for an image display device connected vertically, horizontally, and diagonally. Each display device reads the display start position of the video signal packet, determines the portion of the display range of each display device, and displays that portion. If there is a portion outside the display range, the display position data of the video signal bucket of that portion is processed and output from an appropriate input / output terminal. When there are two or more video signal packet display requests at the same position, the display contents are determined and displayed according to a predetermined procedure.

For this reason, the video display device of the present invention is a video display device composed of a plurality of unit display devices whose display surfaces are arranged in a matrix,
The unit display device includes a display unit having one or more display surfaces for displaying an image, an image having an arbitrary shape with the same or different display screen size and drawing length, and a plurality of packet formats having display position information. A receiving unit that inputs video signals simultaneously from a plurality of input terminals, and the display position information of the video signal supplied from the receiving unit and the known screen size of the display surface of the display unit are compared and supplied The video signal is divided into a display range and a display range on the display surface of the display unit, or a display target and a display target, and the video signal within the display range or the display target is displayed on the display unit. The display position information of the video signal outside the display range or the display target is displayed by subtracting the known screen size of the display surface from the display start position indicated by the display position information. According to the display position information after the processing, the processing portion that processes the display position information indicating the start position, the display position information that is processed by the processing portion, and the video signal outside the display range or outside the display target. Output unit to another adjacent unit display device, and a plurality of video signals in the packet format input to the receiving unit of one or more unit display devices among the plurality of unit display devices One or more unit displays specified based on the display position information among the plurality of unit display devices without performing a process of creating a composite video in the processing unit , allowing simultaneous display of the images of arbitrary shapes This is what the device does.

In addition, when the supplied display position information of the two packet-format video signals indicates the same display position, the unit display device described above displays a predetermined combination control command data or two video signal display positions. It has a simultaneous display means for determining a display method of a video signal portion at the same display position of two video signals in accordance with synthesis control command data generated from information. Furthermore, the unit display device, the display surface 2 Tsumochi, the two display surfaces is characterized Oh Rukoto display device aligned offset from one another.

Each of the plurality of unit display devices arranged in the matrix includes one or more input terminals and other unit displays adjacent in one or more directions of upper, lower, left, right, and diagonal directions. it is intended and a respective output terminal for connection to the device.

Further, the present invention is the unit display device, and selection means for selecting an arbitrary display area of the display surface, the display area selected by the selection means, relative than the number of data in the display area other than the selected display area Supply means for supplying high-definition video data having a large amount of data to the high-definition video data having a relatively large number of data compared to the number of data in the display area other than the selected display area. characterized by further comprising display means for displaying, a.

Further, according to the present invention, when each of the plurality of unit display devices receives an instruction for arrangement recognition, a pattern different from each other is displayed by default on one or more other unit display devices that have not received an instruction input. A display means for displaying an icon group indicating each pattern displayed by the other unit display device, and an icon for each icon of the icon group based on the pattern displayed by the other unit display device by other input. Alignment means for aligning in order of icons indicating the arrangement positions of the unit display devices is provided.

In addition, the present invention is an imaging camera that is connected to any one unit display device among a plurality of unit display devices and captures the entire image of the plurality of unit display devices, and the entire image is displayed in one unit by the imaging camera. Means for reading the position information of the unit display device to which the video signal is input from the correspondence between the input video signal and the unit display device that has displayed the input video signal in a state of being displayed on the device; You may do it.

  The present invention provides a video display device that displays a plurality of videos at the same time without creating a synthesized video, thereby enabling simultaneous display of material videos of different standards without image quality degradation. Further, according to the present invention, even when a video display device in which each display device is arbitrarily arranged vertically and horizontally is configured, one image can be displayed on the above video display device without requiring a control device. Become.

It is a figure which shows the display device used as the structural unit of the video display apparatus of this invention. It is a figure which shows the internal structure of the display device 1 which comprises the video display apparatus of this invention. It is a figure which shows the example of the video display apparatus of this invention. It is a figure which shows the example of the video signal of 1 line of the display device of this invention. It is a figure which shows the mechanism which divides | segments and displays on four display devices in the example of the video display apparatus of this invention. It is a figure which shows the example of the procedure until it displays on the display device the image | video received with the tuner according to a user's instruction | indication. It is a figure which shows the example of the video display apparatus comprised using the unit display device. It is a block diagram which shows the internal structure of the display device 1 which comprises the video display apparatus for displaying a high definition image in the selected area | region. It is a block diagram which shows the internal structure of the display device which comprises the video display apparatus for inputting the area | region which displays a high-definition image in the selected area | region. It is a schematic diagram which shows the setup for performing arrangement | positioning recognition of a display device.

  Embodiments of the present invention will be described below in detail with reference to the drawings. In the following description, devices having the same function or similar functions are denoted by the same reference numerals unless there is a special reason.

  FIG. 1 shows a display device 1 constituting a video display apparatus of the present invention. In the case of configuring a video display device that becomes a quadrangular display area of a large screen, the display devices 1 are respectively arranged and wired from the lower left corner to the upper right and lower diagonal. This operation is repeated for each display device to constitute a video display device having a desired display area. Although the input of the display device 1 is 4 inputs, it is sufficient to have at least 1 input.

  FIG. 2 shows an internal configuration of the display device 1 constituting the video display device of the present invention. The display device 1 in FIG. 2 divides the video signal packet into and out of the display range by simultaneously receiving a plurality of video signals in the video signal packet format, and starts displaying the video signal packet outside the display range. The processing unit 3 that processes the position data, the transmission unit 4 that outputs the processed video signal packet, and the display unit 5 that displays the video signal packet determined to be within the display range. With the configuration of FIG. 2, a plurality of display devices can be interconnected to expand the display range.

  There are various methods for realizing a display unit that displays a video signal packet within the display range. For example, it can be realized using the method described in Patent Document 1 (Japanese Patent No. 3520318, “Video Composition Processing System”). That is, when there is a request to display two video signal packets at the same position, what kind of video is to be displayed indicates the synthesis control command data prepared in advance or the synthesis control command generated from the video signal packet. Display contents are determined by giving data to the display unit.

3, 4 input, top, upper right, and video to the five display devices 21 to 25 of the present invention connected in a case where the right to have the input and output terminals, to constitute a display screen of the shape with the cut upper right rectangular A display device 20 is shown. Respective display limit positions are input and stored in the display devices 21 to 25 in advance. FIG. 4 is a diagram in which video images from a video camera 11, tuners 12 and 13, a digital camera 15, and a personal computer 16 are partially input via a hub 14 as input. All the input signals from these devices are in the format of “video signal packet designating the display start position” described below. From the personal computer 16 , an image video signal indicating two materials of an ellipse and a square is output. Anything may be input to any input terminal of the video display device 20 . If the input terminal is insufficient, it can be handled by branching through the hub as described above. A video signal having a larger number of pixels than can be displayed on a single display device , for example, when the digital camera 15 in FIG. 3 has such a number of pixels, the video signal is automatically detected based on information on the display start position of the video signal. The four display devices 21 , 22 , 24, and 25 are disassembled and displayed.

The display device 21 includes a video displayed in the rectangular region as shown in Figure 3 of a song program broadcast received by the tuner 13, and photographed with a video camera 1, a video of a person itself as shown in FIG. 3 Display so that the display positions overlap . Thereby , it is possible to obtain an image in which a photographed person is dancing on the stage together with a person on the song program broadcast.

The video received by the tuner 12 of FIG. 3 is displayed on the display device 23. FIG. 4 shows a video signal of one line in this case. Description will be made by paying attention to a video signal indicated by a horizontal line in the screen. Display start position of the video signal of one line, (x, y) Ru right edge of the (1310,400) der the sequence of. On the other hand, it is assumed that the screen size of each display device is 640 dots wide and 480 dots long. The display device 21 in the lower left determines that the x-coordinate value of the display start position of the video signal packet is out of the drawing range, and subtracts the x-coordinate value by the horizontal screen size 670 (= 1310-640). ) And output from the right output terminal. Similarly, the second display device 22 that has received this video signal packet changes the value of the x-coordinate to 30 (= 670-640), which is reduced by the horizontal screen size, and outputs it from the right output terminal. The third display device 23 that has received this video signal packet divides the video signal packet into and out of the display range since the display start position is within the display range (in this example, the portion outside the range is Empty), and display the area within the range on the display.

  The mechanism of the automatic transfer of the video signal packet in the upward direction is the same, and the drawing is consistent in the entire video display device connected vertically and horizontally.

5, for example, images of digital cameras 15 shows a mechanism that appears to divide the example of the image display device in four display devices 21,22,24,25 of the present invention. Description will be made by paying attention to a video signal indicated by a horizontal line in the screen. This one-line video signal has a display start position (x, y) of (50, 900), a drawing length of 1024 dots, and each screen size of the display devices 21, 22, 24, 25 is 640 dots wide and 480 dots long. Suppose there is. The display device 21 at the lower left of the video display device 20 determines that the y-coordinate value at the display start position of this video signal packet is outside the drawing range, and subtracts the y-coordinate value by the vertical screen size 420. (= 900-480). Furthermore, since the drawing length ( width ) of one line is equal to or larger than the horizontal screen size, the drawing length is divided into video signal packets of 490 (= 640-50) dots and 534 (= 1024-490) dots, The display start position (x, y) of the first half video signal packet is set to (50, 0). The divided first half video signal packet is output from the upper output terminal of the display device 21. The divided second half video signal packet is output from the output terminal for the upper right of the display device 21.

Viewing devices 24 and 25 having received these video signal packet, the display start position of the input video signal packets divided from it is within each display area, outside the range and the range displaying a video signal packet ( In this example, the portion outside the range is empty), and the video portion within the range is displayed on the display unit.

FIG. 6 shows an example of a procedure until the video received by the tuner 12 is displayed on the display device 23 in accordance with a user instruction. The tuner 12 receives a television broadcast and outputs a video signal packet whose origin (0, 0) is at the lower left, and a packet processing unit that processes a display start position in accordance with an instruction from the outside such as a user Consists of The packet processing unit processes the display start position, but does not process anything as an initial value. Then, since the origin (0,0) of the tuner 12 to the video signal packets, such as the bottom-left outputs is displayed on the video display device 20 as shown in FIG.

A case where the user of the video display device 20 designates a desired display position using a mouse or the like will be described next. For example, when the user indicates (1310, 450) as the display position at the upper left of the video, the instruction data is transmitted to the tuner 12 by clicking the mouse. The packet processing unit of the tuner 12 that has received the instruction data displays the video signal packet output from the radio wave reception unit so that the upper left position (0,400) of the output video of the tuner 12 is the designated position (1310,450). Add (1310, 50) to the start position and output. Further, the display start position (x, y) = (0, 350) of the video signal from the one-line radio wave receiving unit indicated by the horizontal line in the TV video screen of FIG. 6 is (1310, 400) in the packet processing unit. ) To output.

  In the above description, one display screen is assumed for the display unit 5 in FIG. 2. For example, a unit display device as shown in FIG. 7A is repeatedly used to cause a phase as shown in FIG. It can be set as the arrangement | sequence which shifted | deviated. In this case, the unit display device as shown in FIG. 7A may be configured by the method of the present invention or a conventional method. The unit display device may have an output for each direction having translational symmetry.

(Clear button)
Also, instead of increasing the resolution, you can specify an arbitrary area on the display and press the button to increase the resolution of the area and clear the image in that area. Or by using both of them together, it is possible to provide a so-called clear button that clears the moving image. Conventionally, the resolution of the entire image is changed according to an instruction.

  Equipped with such options, in environments where communication bandwidth is limited, such as network usage, the required communication area is displayed in high definition while the overall communication bandwidth is kept low, providing good response and low response. It is possible to provide services with communication charges.

  In order to achieve this, the circuit of FIG. 8 or FIG. 9 is used to instruct the image or video transmission source device to send only the data in the designated area with high definition. The transmission source transmits high-definition data including the coordinates of the part. As a result, the data amount of the instructed portion increases, and the resolution of the remaining area can be kept low while the resolution is increased.

  In this way, as a method of sending partial high-definition data, if the high-definition data is a rectangle, first notify the information of the position of the rectangle origin (for example, the top right vertex), the length of the rectangle, and the resolution. After that, if you send only the data (the order of the data proceeds from the upper right to the left, for example, if the right side of the rectangle is reached, it is determined as appropriate from the right in the next row below). A range of can be displayed. At this time, if the resolution of the data is not sufficient for the resolution of the display device, supplementation is performed as appropriate.

(Recognition of multiple screen layouts: A method using connection ports corresponding to positions)
When a large number of screens are integrated and used as a large screen, it is necessary to prepare for each of a plurality of unit display devices constituting one video display device to recognize the positional relationship and operate as a unit. It is desirable that this adjustment be easy.

  For example, four connection ports for a display device for connecting to another display device are prepared for up, down, left, and right, and the display device to which the video signal is input is used as an origin, and the display device in the up, down, left, and right directions from there. In accordance with the connection port, the rewritten image data is transmitted to the position data obtained by subtracting the number of pixels of the display device in the vertical and horizontal directions. Simultaneous input to a plurality of display devices is also possible, and each video signal has its own origin. The display position of the image obtained by this method is an initial value, and the display position of the image can be changed later by the user. In this case, the position of the origin on the display device side is the same, and only the position data of the image needs to be changed.

According to this proposal, only by connecting unit display devices to the top, bottom, left, and right ports according to the position of the screen, a special arrangement recognition procedure is not required, and integrated display on a plurality of unit display devices becomes possible.

(Recognition of multiple screen layouts: camera method)
In the multi-screen layout recognition, as shown in FIG. 10A, one of a plurality of unit display devices constituting one video display device (here, the seventh unit display among the seven unit display devices). automatic while projecting the entire unit display device group connected to the imaging camera in the device) to the unit display device, by issuing an instruction for automatic placement recognized during the unit display devices, all of unit display devices connected each of the position information to (resolution detectable) Ru to grasp.

That is, when the unit display device is connected, information such as ID and resolution unique to the unit display device is exchanged and registered. When prompted for automatic placement recognition, it sends an image that can be identified unit display device of the ID including itself and other unit display device (e.g., unit display device to be identified red, otherwise blue) the unit The position of the display device is detected by processing the camera image. By notifying all unit display devices of this, each unit display device can know its own position information. Since all of these functions are on the unit display device side, the imaging camera may be a normal one.

(Recognition of multiple screen layouts: ID display method)
In the circuit shown in FIG. 10B, when an instruction for automatic arrangement recognition is given to one of the display devices, the number is outputted to the other display device. On the other hand, a display device that has received an instruction for automatic arrangement recognition is provided with a group of display device icons containing the corresponding numbers. In addition, the user recognizes the arrangement of multiple screens by arranging the icons in the positional relationship of the actual display device with the remote controller.

  The size of the icon can reflect the actual size by display information such as resolution. Thereby, each display apparatus can know its own position information.

  Thereby, arrangement recognition is possible without requiring a camera. Each display is connected to each other, and information can be exchanged. However, since the positional relationship is unknown, the positional relationship is taught by a display device represented by the user.

DESCRIPTION OF SYMBOLS 1 Display device 2 Reception part 3 Processing part 4 Transmission part 5 Display part 11 Video camera 12, 13 Tuner 14 Hub 15 Digital camera 16 Personal computer 20 Image | video display apparatus 21, 22, 23, 24, 25 Display device 30 Display device 40 Display control Unit 50 Display device 60 Arrangement recognition device

Claims (7)

A video display device comprising a plurality of unit display devices whose display surfaces are arranged in a matrix,
The unit display device is:
A display unit having one or more display surfaces for performing image display;
A receiving unit that displays images of an arbitrary shape having the same or different display screen size and drawing length, and that receives a plurality of video signals in a packet format having display position information simultaneously from a plurality of input terminals ;
The display position information of the video signal supplied from the receiving unit is compared with a known screen size of the display surface of the display unit, and the supplied video signal is within the display range of the display surface of the display unit. And display the video signal within the display range or the display target, and display the video signal outside the display range or outside the display target. A processing unit for processing position information into display position information indicating a display start position obtained by subtracting a known screen size of the display surface from a display start position indicated by the display position information;
An output unit for outputting a video signal outside the display range or the display target together with display position information after processing by the processing unit to another adjacent unit display device corresponding to the display position information after processing; ,
The provided, the simultaneous display of allowed overlapping of the arbitrary shape of the image in which a plurality of video signals of the packet format that is input to the receiving unit of the one or more unit display devices among the plurality of unit display devices are shown, the a video display device which is characterized in that one or more of the unit display device specified based on the display position information of the plurality of unit display devices without performing the process of making a combined image in the processing unit. When the display position information of two supplied video signals in the packet format indicates the same display position, the unit display device displays the predetermined combination control command data or the display of the two video signals. 2. A video display apparatus according to claim 1, further comprising a simultaneous display means for determining display contents of the video signal portion at the same display position of the two video signals according to the composition control command data generated from the position information. The unit display device, the display surface 2 Tsumochi, the two display surface according to claim 1 Symbol mounting a video display device and wherein the Oh and Turkey display device aligned offset from one another. Each of the plurality of unit display devices arranged in the matrix includes one or more input terminals and other unit display devices adjacent in any one or more of the upper, lower, left, right, and diagonal directions. image display apparatus according to claim 1 Symbol mounting, characterized in that it comprises a respective output terminal for connection. The unit display device is:
Selecting means for selecting an arbitrary display area of the display surface ;
Supplying means for supplying high-definition video data having a relatively large number of data to the display area selected by the selection means, relative to the number of data in the display area other than the selected display area;
Display means for displaying high-definition video data having a relatively larger number of data than the number of data in the display area other than the selected display area in the selected display area;
Further image display apparatus according to claim 1 Symbol mounting, characterized in that it comprises a. Each of the plurality of unit display devices is
When there is an instruction input for arrangement recognition, each pattern displayed by the other unit display device is displayed by default on one or more other unit display devices that have not received the instruction input. Display means for displaying an icon group to be displayed;
Alignment means for aligning the icons of the icon group in the order of icons indicating the positions of the other unit display devices based on the pattern displayed by the other unit display devices by external input.
Image display apparatus according to claim 1 Symbol mounting, characterized in that it comprises a. An imaging camera connected to any one unit display device among the plurality of unit display devices and capturing an entire image of the plurality of unit display devices;
The video signal is input from the correspondence between the input video signal and the unit display device that displays the input video signal in a state where the whole image is displayed on the one unit display device by the imaging camera. Means for reading the position information of the unit display device
Image display apparatus according to claim 1 Symbol mounting, characterized in that it comprises a.

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