KR20070076272A - Display device having video wall function and method thereof - Google Patents

Abstract

A display method having a video wall function is disclosed. According to the present invention, when the first display device receives an input video signal from among a plurality of display devices, a screen split ratio for the input video signal, and a video wall function execution command are input, the first display device is configured to the screen split ratio. Generating a plurality of divided images by dividing the input image signal, transmitting the remaining divided images except for the first divided image corresponding to the first display apparatus to the corresponding display apparatus, and a plurality of the first display apparatus. Outputting the divided images corresponding to the two display apparatuses on the screen. Accordingly, user convenience may be increased by automatically setting and displaying an image corresponding to each display device.

Description

Display apparatus having video wall function and method thereof

1 is a schematic diagram showing an operating environment of a plurality of display devices according to an embodiment of the present invention;

2 is a block diagram showing a configuration of a display apparatus according to an embodiment of the present invention;

3A to 3C are schematic views illustrating a display screen implementing a video wall function according to an embodiment of the present invention.

4 is a flowchart illustrating a display method according to an embodiment of the present invention.

Description of the main parts of the drawing

100: display device 110: signal receiving unit

120: signal processing unit 130: OSD processing unit

140: input unit 150: control unit

160: data transmission unit

The present invention relates to a display apparatus having a video wall function and a method thereof, and more particularly, to a display apparatus and method for automatically setting images corresponding to a plurality of display apparatuses when using the video wall function.

In general, a display device is a device that displays an image on a screen. By using such a display device, various functions can be implemented. One of these is the Video Wall feature. The video wall function refers to a function of recognizing a plurality of display apparatuses as one screen, and to display an image enlarged in 1 × 4, 2 × 2, 3 × 3, and 4 × 4. Such a video wall function may be used to allow a user to recognize an image displayed on the screen at a glance by enlarging and displaying one screen on a plurality of display devices such as conference rooms, presentations, exhibition halls, traffic and securities.

Meanwhile, in using the video wall function, an ID of each display apparatus must be set. The user needs to turn on / off the video wall function via the OSD. Thereafter, a screen division method should be selected, and an ID of an image corresponding to each display apparatus should be set according to the screen division method. Through this process, an image is enlarged and displayed on each screen of the plurality of display apparatuses. However, in using the video wall function, when the screen division method is 2 × 2, the user may set the ID of the image to be displayed on each display device as 1, 2, 3, 4, but more screen division methods are used. In this case, it takes a long time for the user to set the ID of the image to be displayed on each display device, and there is a problem that user inconvenience occurs.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a display apparatus and method for automatically setting an image corresponding to each display apparatus by checking a set screen division scheme when using a video wall function. Is in.

According to an aspect of the present invention, there is provided a display method comprising: (a) receiving a first image signal from a first display device among the display devices, and (b) a screen of the input image signal. Generating a plurality of divided images by dividing the input image signal according to the screen split ratio by the first display apparatus when a split ratio and a video wall function execution command are input; and (c) corresponding to the first display apparatus. Transmitting the remaining divided images except for the first divided image to the corresponding display apparatus, and (d) outputting the divided images corresponding to each of the plurality of display apparatuses including the first display apparatus on the screen. Include.

Preferably, the step (c) may include assigning IDs to the remaining divided images in a predetermined order based on the first divided image, checking IDs of the sub display apparatuses, and rest of the divided images. The method may include checking the IDs assigned to the respective devices and transmitting the sub display apparatuses having the corresponding IDs.

More preferably, the step (b) may include outputting a video wall function execution menu window on the first display device screen and executing the screen split ratio and the video wall function through the video wall function execution menu window. It may include receiving a command.

According to an embodiment of the present disclosure, a display device connected to a plurality of external display devices may include a signal receiver for receiving an input image signal, an input unit for receiving a screen split ratio and a video wall function execution command, and a screen split ratio. A signal processor for dividing the input image signal to generate a plurality of divided images, a controller for allocating an external display device corresponding to the remaining divided images other than the first divided image among the plurality of divided images, and the remaining divided images It includes a data transmission unit for transmitting the image to the assigned external display device, respectively.

Preferably, the control unit assigns IDs to the remaining divided images in a predetermined order based on the first divided image, and the data transmission unit checks the IDs assigned to the remaining divided images to determine corresponding IDs. The branch may transmit each split image to an external display device.

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

1 is a schematic diagram showing a display system according to an embodiment of the present invention. The display system includes a plurality of display devices 100-1 to 100-4. According to FIG. 1, the plurality of display apparatuses 100-1 to 100-4 are arranged in a 2 × 2 shape. That is, it is arranged in two horizontally and two vertically. The number and arrangement of the entire display devices constituting the display system may vary.

Meanwhile, one display device of each display device 100-1 to 100-4 may operate as the main display device. In FIG. 1, assuming that the upper left display device 100-1 operates as the main display device 100-1, the upper right side, the lower left side, and the lower right side are the sub display apparatuses 100-2 and 100-, respectively. 3, 100-4). The main display apparatus 100-1 may control an operation of each sub display apparatus.

In this state, when the main display apparatus 100-1 is turned on, the video wall function setting menu window is displayed on the screen of the main display apparatus 100-1 in OSD form. In this case, the video wall function is a function of recognizing a plurality of display apparatuses as a single screen, and may divide and display an image on a plurality of display apparatuses.

The video wall function setting menu window refers to a menu window for setting a video wall function execution command and a screen split ratio. The main display apparatus 100-1 generates a plurality of divided images by dividing an input image signal according to a screen division method set through a video wall function setting menu window. Then, the divided images are transmitted to the sub display apparatuses 100-2, 100-3, and 100-4 to be output on the screen. In this case, the divided image corresponding to the main display apparatus 100-1 itself is output through its own screen. Accordingly, the entire image can be output through the display system.

The main display apparatus 100-1 automatically assigns the sub display apparatuses 100-2, 100-3, and 100-4 corresponding to each divided image. For example, assuming that IDs of the entire display apparatuses 100-1 to 100-4 are 1, 2, 3, and 4, ID 1 is assigned to the divided image corresponding to the main display apparatus 100-1. Based on this, IDs are assigned to the remaining divided images. That is, 2 is assigned to the upper right divided image, 3 is assigned to the lower left divided image, and 4 is assigned to the lower right divided image. Accordingly, each divided image can be output through the corresponding display device.

2 is a block diagram illustrating a configuration of a display apparatus according to an exemplary embodiment. According to FIG. 2, the display apparatus 100 includes a signal receiver 110, a signal processor 120, an OSD processor 130, an input unit 140, a data transmitter 160, and a controller 150. The display apparatus 100 may be connected to a plurality of external display apparatuses to control the operation of each external display apparatus.

The signal receiver 110 selects a predetermined channel and receives a video signal. In addition, the signal receiver 110 may be connected to an external device to receive various video signals from the external device.

The signal processor 120 processes an image signal received through the signal receiver 110. Specifically, a plurality of divided images are generated by dividing the video signal under the control of the controller 150.

The OSD processor 130 generates a video wall function setting menu window in the form of OSD. Specifically, the video wall function setting menu window includes an area for inputting various setting values to implement the video wall function.

More specifically, the apparatus may include a first area for setting a screen split ratio and a second area for inputting a video wall function execution command. Meanwhile, the ID of each external display device may use a preset value as it is. Alternatively, it can be newly set through the video wall function setting menu window. To this end, a third area for directly inputting an ID of each external display device may be further included on the video wall function setting menu window.

The input unit 140 receives a setting value of each region of the video wall function setting menu window and a video wall function execution command generated by the ODS generator 130. In detail, when setting the ID of each external display device through the third area, the input unit 140 receives the ID setting values of the plurality of display devices. The ID setting value may be set according to the arrangement order of the plurality of display apparatuses. For example, when a plurality of display devices are arranged in two horizontally and two vertically, the ID setting value of the display device located on the upper left is '1', and the ID setting value of the display device located on the upper right is '2', The ID setting value of the display device located on the left side may be input as '3', and the ID setting value of the display device located on the lower right side may be entered as '4'.

In addition, when setting the screen split ratio through the second area, the screen split ratio may be set according to the arrangement and number of the plurality of display devices. For example, when a plurality of display devices are arranged in two horizontally and two vertically, a screen division method of 2 × 2 may be set accordingly. In addition, when a plurality of display devices are arranged in three horizontal and three vertical directions, a 3 × 3 screen division method may be set. In addition, when the user selects the video wall function execution region, the input unit 140 may receive a video wall function execution command accordingly. Meanwhile, each setting value and execution command of the video wall function setting menu window may be input using a remote controller and an external operation key.

The controller 150 controls the operation of the main body and the sub display apparatus according to each setting value of the video wall function setting menu window and the video wall function execution command input through the input unit 140. In detail, the controller 150 sets IDs of the display apparatuses according to IDs of the plurality of display apparatuses input through the inputter 140. In addition, the image is divided according to the screen division method input through the input unit 140. In addition, when a command for executing a video wall function is input through the input unit 140, the controller 150 divides an image according to the screen division method, and displays the divided images at positions corresponding to IDs of a plurality of display devices. It controls its own display operation and the operation of the sub display devices.

3A to 3C are schematic views illustrating a display screen implementing the video wall function according to an embodiment of the present invention. FIG. 3A illustrates a display screen implementing a 2 × 2 screen division videowall function. According to FIG. 3A, a 2 × 2 image is displayed on the screen of each display device through four display devices. When a user wants to display an image by dividing the image into 2 × 2 by using the video wall function to enlarge the display on each display device screen, an ID is set to each of the four display devices. Specifically, the ID may be set to '1' for the upper left display device, '2' for the PDP on the upper right side, '3' for the lower left display device, and '4' for the lower right display device. Thereafter, the user may select a 2 × 2 screen division scheme to be displayed on each of the four display apparatuses. In this way, the image divided according to the 2 × 2 screen division method is displayed on the display device screen of the corresponding ID.

3B is a display screen implementing a 3 × 3 screen division type video wall function. According to FIG. 3B, a 3 × 3 screen is displayed through nine display devices. When the user wants to divide the image into 3x3 by using the video wall function to enlarge and display on the screen of each display device, first, IDs are set for each of the nine display devices. Specifically, the upper left display device is' 1 ', the upper center display device is' 2', the upper right display device is' 3 ', the middle left display device is' 4', and the center display device is' 5 ', the ID of the display device at the center right is' 6', the display device at the bottom left is' 7 ', the display device at the bottom center is' 8', and the display device at the bottom right is' 9 '. Thereafter, the user may select a 3 × 3 screen division scheme to be displayed on each of the nine display apparatuses. In this way, the image divided according to the 3 × 3 screen division method is displayed on the display device screen of the corresponding ID.

3C is a display screen implementing the 4 × 4 screen division type video wall function. According to FIG. 3C, a 4 × 4 screen is displayed through 16 display devices. When the user wants to divide the image into 4x4 and enlarge it on the screen of each display device by using the video wall function, first, IDs are set to each of the 16 display devices. The ID setting values of the display apparatuses may be sequentially input in the same manner as the method set in FIGS. 3A and 3B. Thereafter, the user may select a 4 × 4 screen division scheme so that an image may be displayed on each of the 16 display apparatuses. Accordingly, the image divided according to the 4x4 screen division method is displayed on the display device screen of the corresponding ID.

4 is a flowchart illustrating a display method according to an embodiment of the present invention. According to FIG. 4, when the display apparatus is on, the video wall function setting menu window is displayed on the screen (S410). In this case, the video wall function setting menu window includes a screen division ratio setting area and a video wall function execution command input area. Alternatively, the apparatus may further include an ID setting area of the plurality of display apparatuses (the main body and the plurality of sub display apparatuses).

The user may input a screen split ratio, a video wall function execution command, etc. through the video wall function setting menu window (S420). In this case, IDs of the plurality of display apparatuses may also be set.

Next, the display apparatus 100 generates a plurality of divided images by dividing the input image signal according to the input screen division ratio (S430).

Then, each divided image is automatically assigned to the corresponding display device and displayed (S440). Specifically, IDs are sequentially assigned to the other divided images based on the divided images corresponding to the display apparatus 100. In this case, the ID to be assigned may be an ID set through the video wall function setting menu window or may be a preset ID. Accordingly, each divided image is transmitted to an external display device having a corresponding ID. Then, the entire display apparatus including the display apparatus 100 outputs the divided image assigned to the screen on the screen, thereby completely outputting the entire image signal.

As described above, according to the present invention, when the video wall function is used, the user can automatically set the images to be displayed on the plurality of display apparatuses without the user having to set them one by one, thereby saving time and increasing user convenience. There is an advantage.

While the above has been shown and described with respect to preferred embodiments of the invention, the invention is not limited to the specific embodiments described above, it is usually in the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

Claims (5)

In the display method on a plurality of display devices, (a) receiving, by a first display device of the display device, an input video signal; (b) generating a plurality of divided images by dividing the input image signal according to the screen division ratio by the first display apparatus when a screen division ratio and a video wall function execution command are input to the input image signal; (c) transmitting the remaining divided images except for the first divided image corresponding to the first display apparatus, to the corresponding display apparatuses; And, and (d) outputting a split image corresponding to each of the plurality of display apparatuses including the first display apparatus on a screen. The method of claim 1, Step (c) is, Assigning IDs to the remaining divided images in a predetermined order based on the first divided image; Checking an ID of each of the sub display apparatuses; And, And checking an ID assigned to each of the remaining divided images and transmitting a sub display apparatus having a corresponding ID. The method of claim 2, In step (b), Outputting a video wall function execution menu window on the screen of the first display device; And, And receiving the screen split ratio and the video wall function execution command through the video wall function execution menu window. In the display device connected to a plurality of external display device, A signal receiver which receives an input video signal; An input unit configured to receive a screen split ratio and a video wall function execution command; A signal processor which generates a plurality of divided images by dividing the input image signal according to the screen split ratio; A controller which allocates a corresponding external display device to the remaining divided images except the first divided image among the plurality of divided images; And, And a data transmitter to transmit the remaining divided images to the assigned external display apparatus. The method of claim 4, wherein The control unit, IDs are assigned to the remaining divided images in a predetermined order on the basis of the first divided image, and the data transmission unit checks the IDs assigned to the remaining divided images to the external display device having a corresponding ID. Display device, characterized in that for transmitting.

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