JP2012222372A - Image display apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an easy-to-use image display apparatus having flexibility in arrangement of the display apparatus to display one image data on a plurality of separated display surfaces.SOLUTION: An image display apparatus displaying one video content on a plurality of separated screens includes a plurality of image display parts and an image transmission part. The image transmission part obtains positional information so that maximum display area for the one video content is secured with respect to the plurality of image display parts and transmits the video content and the positional information of the respective image display parts to the image display parts. The image display parts disposed separately clip and display parts of the screen to display the entire image by the screens of the plurality of display parts based on the positional information from the image transmission part.

Description

  The present invention relates to an image display device and an image display method. For example, the present invention relates to an image display apparatus that displays one image data on a plurality of dispersed display surfaces, and an image processing method thereof.

  As background art in this technical field, for example, there is JP-A-6-259048 (Patent Document 1). This publication describes a screen splitting device that is “with respect to a screen splitting device that splits and displays a single screen image into a plurality of monitor screens for the purpose of preventing screen distortion at the screen boundary portion”. Another example is JP-A-5-127632 (Patent Document 2). This publication describes “a multi-screen display device capable of projecting more divided screens than the number of displays on one collective screen”. Specifically, “In the split screen display by the conventional multi-screen display device, the number of display units constituting the group screen is the same as the number of split screens, and one group screen is divided into more than the number of display units. Therefore, the object of the present invention is to provide a multi-screen display device that can simultaneously display a larger number of divided screens than the number of display devices on one collective screen, and to further express various images. A more specific object of the present invention is to make the video data for one screen written in the storage means smaller than the entire area (actual boundary area) of the display screen of one display. When it is possible to display in the screen area (virtual boundary area), a set screen consisting of virtual boundary areas more than the number of displays is formed, and the same image is displayed in each virtual boundary area It is to do. "

JP-A-6-259048 JP-A-5-127632

  In recent years, image display devices have begun to be used as digital signage (electronic signage). As an example of use of digital signage, it has begun to be used in displays of stores, information display devices of public institutions such as hospitals, airports and stations. Many of these will display information on a large screen. There are the following problems when information is displayed on a large screen for various uses.

  It is necessary to secure an arrangement space for the image display device. Next, when an arrangement space is secured, there is a problem that when an obstacle is placed on the front surface of the image display device due to a layout change of a store or the like, a part of the image display device is hidden.

  In addition, there is a demand for intentionally disposing and displaying the image display units in order to increase the advertising effect.

  The multi-screen display device shown in the image division display device shown in Patent Literature 1 and the image division display device shown in Patent Literature 2 is not considered to be displayed discretely, so there is no degree of freedom in the arrangement of the display devices. Therefore, there is a problem that a fixed arrangement is required.

  The above problems are improved by the invention described in the claims.

  According to the present invention, for example, it is possible to display information (contents) in which a plurality of discrete display units are regarded as one screen, it is possible to have flexibility in the arrangement of the image display device, and ease of use. A good image display device can be provided.

  Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

An example of the image display apparatus of 1st Example. An example of the image display part of 1st Example. An example of the display image of 1st Example. An example of the display image of 1st Example. An example of the display image of 1st Example. An example of the display image of 1st Example. An example of the display image of 1st Example. An example of the display surface of 2nd Example. An example of the display surface of 2nd Example. An example of the display surface of 2nd Example.

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

FIG. 1 is a block diagram of an image display apparatus according to the first embodiment.
The image display device 1 includes a video transmission unit 100 and a plurality of video display units 101 to 104. The image transmission unit 100 includes a recording medium that records image data subjected to compression processing, a recording medium control unit that reads image data from the recording medium, and a method such as a transport stream packet (TS packet) for the read image data. It consists of a transfer unit that wirelessly transfers packets.

  Examples of the recording medium include an optical disk, a magnetic disk, and a large capacity memory. Examples of a method for compressing image data include MPEG2 (ISO / IEC 13813-2, International Standard), H.264 (ITE / ISO 14496-10 / H.264AVC) / AVC (Advanced Video Coding).

  The image data may be recorded on a recording medium of the video transmission unit 100, or may be an image recorded on a recording medium, for example, an image distributed via a network such as a LAN.

  FIG. 2 is a block diagram of the video display unit 101 according to the first embodiment of the present invention. The video stream from the video transmission unit 100 is input from the reception unit 11, and a part of the image data is converted according to the position information. It is displayed on the display unit 16. An example of the display unit 16 is an LCD.

  The receiving unit 11 receives a control signal indicating a position where the video stream and the video display unit 101 are arranged.

  The wireless circuit 12 analyzes the received video stream and the header of the control signal and separates them into a video stream and a control signal according to the protocol. The separated video stream is decoded by the decoding unit 13 and output to the scaling unit 14.

  The control signal separated by the wireless circuit 12 is supplied to the overall control CPU unit 17 that controls the entire video display unit 101.

  The overall control CPU unit 17 controls the video display unit 101 according to control information from the wireless circuit. The overall control CPU unit 17 sets the position information set by the video transmission unit 100 in the scaling unit 14. The position information includes coordinates indicating the display position of one frame image (for example, horizontal 1920, 1080 vertical lines, 4096 horizontal lines, and 2160 vertical lines) and the enlargement / reduction ratio. The scaling unit 14 cuts out image data from the image of one frame supplied from the decoding unit 13 in accordance with a control signal from the position information control unit 18. The enlargement ratio is determined according to the resolution of the display unit 16.

  The image cut out by the scaling unit 14 is supplied to the display control unit 15, and a voltage is applied to the display position of the liquid crystal panel, for example, by the display control unit 15 to display an image on the display unit 16. The position information is detected by the position sensor 19, a unique ID is set for each of the video display units 101 to 104 from the ID setting terminal 22 to the ID holding unit 21, and the position information is transmitted to the video transmission unit 100 from the output terminal 20. Send. The ID holding unit 21 may be set via the overall control CPU 17 from the receiving unit 11.

  FIG. 3 is a diagram illustrating an example in which an image is displayed on the image display units 101 to 104 according to the first embodiment of the present invention. An image indicated by 201 is a one-frame image transmitted by the video transmission unit 100. The video display device 1 is arranged such that the video display unit 101 and the video display unit 102, the video display unit 103 and the video display unit 104 are arranged in the horizontal direction, and the video display unit 101 and the video display unit 102 are arranged in the vertical direction. 103 and the video display unit 104 are arranged.

  In each video display unit, after decoding one frame of image 201 by the decoding unit 13, for example, in the case of the video display unit 101, a quarter image is cut out and displayed by the scaling unit 14. Similarly, the video display unit 102 displays a 1/4 image from the upper right end, the video display unit 103 displays a 1/4 image from the lower left end, and the video display unit 104 displays a 1/4 image from the lower right end. With this configuration, one frame of image data can be displayed on the divided video display units 101 to 104.

  FIG. 4 is a diagram illustrating an example in which the video display units 101 to 104 according to the first embodiment of the present invention are arranged apart from each other and a video is output. 4A shows an arrangement example of the video display units 101 to 104. The video display unit 101 and the video display unit 103, the video display unit 102 and the video display unit 104 are arranged in the vertical direction, and the video display unit 101, FIG. The video display unit 103, the video display unit 102, and the video display unit 104 are configured to be spaced apart from each other. FIG. 4B is an example of video content in consideration of the arrangement of FIG. Reference numeral 202 denotes an area of one frame of video content, 203 denotes a first display frame, and 204 denotes a second display frame. FIG. 4C is a diagram showing the relationship between each display frame and the video display unit. The video display unit 101 is assigned to the upper part of the first display frame 203, the video display part 103 is assigned to the lower part, the video display part 102 is assigned to the upper part of the second display frame 204, and the video display part 104 is assigned to the lower part. It is done. FIG. 4D is a diagram illustrating an example when the video display device 1 is arranged in a store or the like. Reference numeral 207 denotes an obstacle such as a merchandise display rack in a store or the like. In this example, since it is not necessary to arrange the video display units 101 to 104 adjacent to each other, it is not necessary to secure a coherent arrangement space, and even if an obstacle such as a product display rack 207 is arranged, the image device Since the intended content can be displayed, there is an effect that the arrangement is free. Even if there is an obstacle in front of the image display device 1 due to a layout change or the like, the image can be displayed.

  A second embodiment of the present invention will be described with reference to the drawings.

  FIG. 5 is a diagram illustrating a method for setting position information of the video display units 101 to 104 according to the second embodiment of the present invention. A circumscribing rectangle is obtained for the discrete video display units 101, 102, 103, and 104 and used as a virtual display unit. With this configuration, the degree of freedom in the interval between the video display units is increased.

  In FIG. 6, two of the discrete video display units 101, 102, 103, and 104 (in the example, the video display units 101 and 104) are selected, and a rectangle circumscribing the two is obtained and used as a virtual display. Since the arrangement is determined by the video display units 101 and 104 with this configuration, the video display unit can be easily set.

  The image display units 102 and 103 may be added after the display positions divided in one frame are determined by the two video display units.

  FIG. 7 shows an example in which discrete video display units 101, 102, 103, and 104 are closely arranged. In order to display the video content at the maximum on the video display unit, an inscribed rectangle having the maximum display area is obtained and used as a virtual display.

  The setting of the position information in FIG. 5 to FIG.

  As mentioned above, although preferred embodiment concerning this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to this example. It is obvious for those skilled in the art that various changes or modifications can be conceived within the scope of the technical idea described in the claims. It is understood that it belongs to.

  For example, the present invention can be used for electronic signage (digital signage).

DESCRIPTION OF SYMBOLS 1 Image display apparatus 11 Reception part 12 Radio | wireless circuit 13 Decoding part 14 Scaling part 15 Display control part 16 Display part 17 Overall control CPU part 18 Position information control part 19 Position sensor 20 Position sensing output 21 ID holding part 22 ID setting part 100 Video Transmission unit 101, 102, 103, 104 Video display unit 201, 202, 203, 204, 206 Display image 207 Obstacle 208, 209, 210 Virtual display unit

Claims (4)

In an image display device that displays one video content on multiple screens,
A plurality of image display units and an image transmission unit;
The image transmission unit obtains positional information so as to secure a maximum display area of one video content for the plurality of image display units,
Send the video content and location information of each image display to the image display,
Each image display section
Based on the position information from the image transmission unit, a part of the screen is cut out and displayed,
An image display device, wherein one video content is displayed on the screens of the plurality of image display units. In an image display device that displays one video content on multiple screens,
A plurality of image display units and an image transmission unit;
The image transmission unit obtains position information so as to display one video content in a rectangular area inscribed in the largest area from the plurality of image display units,
Send the video content and location information of each image display to the image display,
Each image display section
Based on the position information from the image transmission unit, a part of the screen is cut out and displayed,
An image display device that displays one video content on a plurality of image display screens. In an image display device that displays one video content in a plurality,
A plurality of image display units and an image transmission unit;
The image transmission unit selects a first image display unit and a second image display unit from among a plurality of image display units,
Detecting a rectangular area circumscribing the first image display unit and the second image display unit;
Finding position information to display one video content for the circumscribed rectangular area,
Send one video content and position information of each image display unit to the image display unit,
Each image display section
Based on the position information from the image transmission unit, a part of the screen is cut out and displayed,
An image display device that displays an entire image on a screen of the plurality of image display units. In the image display device according to any one of claims 1 to 3,
An image display device characterized in that the plurality of image display units are arranged discretely.

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