KR101414898B1 - Method for controlling and composing multi vision using display device - Google Patents

Abstract

The present invention relates to a configuration of a multi-vision using a video display device and a control method thereof, in which a plurality of video display devices are arranged in correspondence with a user's request, a multi-vision is configured through the plurality of video display devices arranged, Thereby outputting video and audio in accordance with the video signal. Therefore, the multivision can be easily configured without any additional configuration.

Video display device, multi vision

Description

TECHNICAL FIELD [0001] The present invention relates to a method and a device for controlling multi-vision using a display device,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a display device, and more particularly, to a multivision configuration and a control method thereof using a plurality of display devices.

Recently, demand and supply of display equipment that can realize a very large screen without occupying space such as LCD (Liquid Crystal Display), PDP (Plasma Display Panel), and projector are increasing due to the enlargement and slimming of display media. Due to this situation, multi-vision has already been realized by using PDP, LCD, projector, CRT,

As shown in FIG. 1, the conventional multivision includes a plurality of display devices, and an intermediate signal control device for dividing and supplying a video signal supplied from a video signal input source to the display devices is installed in display devices It has an implementation form. In addition, a separate speaker for audio output according to the multi-vision implementation must be installed and connected to the plurality of display devices.

Accordingly, it is implemented by operating the image dividing device, which is an intermediate signal control device, so as to be appropriately distributed to display devices at respective positions, thereby displaying each video signal supplied to each display device itself and outputting audio from a separate speaker .

Accordingly, in the conventional multi-vision implementation, the use of the intermediate signal control device between the image signal source and the display devices requires a control technique in terms of costs or a certain level or more. In addition, spatial loss may occur due to the provision of a separate audio device.

It is an object of the present invention to provide a multi-vision and a method of implementing the multi-vision which can be configured with a low cost and a storage ratio and can realize a multi-screen by simple installation.

According to an aspect of the present invention, there is provided an image processing apparatus that outputs an image or a stored image received from the outside, enlarges and outputs an image at a predetermined magnification, and outputs a video signal output part; A display unit for displaying an image of a predetermined area output from the image processing unit; A voice signal output unit for outputting audio or stored audio received from the outside and for outputting to the speaker according to the input audio channel; A speaker for outputting audio corresponding to the audio channel received from the audio signal output unit; A storage unit for storing an ID according to a layout state of the display device; And a control unit for controlling the display unit or the speaker to output an image or audio corresponding to the preset area or channel and to control the display unit or the speaker to output the image or audio corresponding to the preset area and channel, As shown in FIG.

According to another aspect of the present invention, there is provided a method of controlling a display device, Enlarging an area of an image to be displayed according to the set ID and dividing an audio signal to be output according to a channel; And outputting the enlarged image and the divided audio signal through a display unit and a speaker.

The multivision according to the present invention can easily realize a multivision with only the constitution of a plurality of image display devices without expensive additional equipment.

In addition, by configuring a multi-vision using a plurality of video display devices, it is possible to smoothly output multiple audio, so that the user can easily enjoy the video and audio.

Hereinafter, a configuration of a multi-vision and a screen processing method according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram of a display device to which an embodiment of the present invention is applied. Hereinafter, a display device for implementing an embodiment of the present invention will be described in detail with reference to FIG. The display device 100 includes a receiving unit 110, a processing unit 120, an output unit 130, a control unit 140, a storage unit 141, and a user interface unit 160.

The receiving unit 110 may include an external signal input unit 111 and a tuner unit 112. The processing unit 120 includes an image / audio signal switching unit 121, an A / D converter 122, A video / audio signal processor 123 and an image memory 1244, and may include the output unit 130 and the speaker 134.

The external signal input unit 111 receives an external signal received from an external device such as a digital versatile disk (DVD), a set-top box, a camcorder, or the like and provides the external signal to the video / audio signal switching unit 121.

The tuner unit 112 tunes at least one channel according to a control signal of the controller 140 and decodes or separates video / audio / data signals received through the tuned channel, ). The data signal includes electronic program guide (EPG) information including broadcast information such as start time and end time of a broadcast program broadcasted on each channel.

The tuner unit 112 includes an analog tuner 112a for receiving an analog signal, a digital tuner 112d for receiving a digital signal, an analog decoder 112b for decoding an analog signal, and a digital decoder 112e for decoding a digital signal . The video / audio signal output through the VSB decoder has the form of a transport stream (TS).

The video / audio signal switching unit 121 selects at least one channel among the channels provided from the external signal input unit 111 and the tuner unit 112 and separates the video / audio signal of the channel according to need An MPEG decoder and a video / audio signal processor 123, and the like. The video / audio signal switching unit 121 may include a demultiplexer capable of separating video / audio / data signals.

When the signal selected by the video / audio signal switching unit 121 is an analog signal, the video signal and the audio signal of the analog signal are separated, and the analog video signal is converted into a digital video signal by the A / D converter 122 An MPEG decoder and a video / audio signal processing unit 123, and the analog audio signal can be provided to the audio signal output unit 133. When the signal selected by the video / audio signal switching unit 121 is a digital signal, both the video signal and the audio signal of the digital signal can be provided to the MPEG decoder and the video / audio signal processor 123.

The MPEG decoder and the video / audio signal processor 123 reconstruct the video / audio stream of the output signal of the video / audio signal switching unit 121 into video / audio data and process the video / audio stream, The audio signal provided to the video signal output unit 131 and processed is supplied to the audio signal output unit 133. The MPEG decoder and video / audio signal processor 123 may mix the OSD data provided by the controller 140 and the restored and processed video signals.

The video memory unit 124 provides a memory area required for decoding and signal processing of the MPEG decoder and the video / audio signal processor 123. Particularly, this part can be used in the search step of finding another channel broadcasting the same content as the storage part 141, and is used to compare the content identity of two or more channels when the symbol use step and the image comparison step are performed.

The video signal output unit 131 processes the video signal output from the MPEG decoder and the video / audio signal processing unit 123 in a form that can be outputted through the display module 132, and the audio signal output unit 133 And processes the audio signal output from the MPEG decoder and the video / audio signal processing unit 123 in a form that can be outputted through the speaker 134.

Particularly, the video signal output unit 131 according to the embodiment of the present invention confirms the enlarged area of the image to be output to the display module 132, and enlarges the image and outputs the enlarged image. In addition, the audio signal output unit 132 determines the audio corresponding to the audio channel to be output from each display device in the output audio, and outputs the corresponding audio. That is, as in the embodiment of the present invention, the speaker 134 of each display device outputs only the audio corresponding to each channel according to the audio output of 5.1Ch.

The control unit 140 controls the tuner unit 112, the video / audio signal switching unit 121, the MPEG and the video / audio signal processing unit 123, and controls other components of the video apparatus 100 And can be designed and connected to. In particular, the control unit 140 according to the embodiment of the present invention enlarges the image to be output by the video signal output unit 131 according to the position of the video equipment arranged for the video and audio to be outputted, And controls the voice signal output unit 133 to check the audio channel and selectively output the audio of the corresponding channel.

Also, one of the plurality of display devices constituting the multivision may be set to perform a master function from the user or according to the arrangement of the display devices. Accordingly, the controller 140 of the display device sets the corresponding portion of each image or audio to be output from the plurality of display devices by multi-vision, and outputs a corresponding control signal to each display device.

In addition, the storage unit 140 stores audio or video to be output from each display device when the video and audio are output in multi-vision using a plurality of display devices. And also stores information on an area and an audio channel of an output target image depending on whether the display device is arranged or mastered.

As described above, the display device 100 to which the embodiment of the present invention is applied includes a receiving unit 110 for receiving a broadcast signal or receiving a broadcast signal through an external storage medium or the like, The display module 132 and the speaker 134 of the display device 100 according to the information stored in the storage 141, And a control unit 140 for controlling the expansion of the image and the output of the audio channel.

Embodiments of the multivision configuration and the operation thereof will be described in more detail using a plurality of display devices 100 having the above configuration. FIG. 3 is a flowchart of a multivision setting operation when a multivision is configured using a plurality of display devices 100. FIG.

The display device 100 for arranging the multivision by the user is arranged and the multivision setting mode is performed for any one display device 100 set as the master or each of the arranged display devices 100 do. In the embodiment of the present invention, a configuration of a display device for constituting a multivision and an arrangement according to the display device are constituted by 2x2, for example. The control signal input from the user according to the multi-vision setting mode is input through the remote controller through the interface unit 160 of the display device 100, for example.

The control unit 140 of the display device 100 performs a step of mutually confirming the connection status of multi-vision by 2x2 according to the multi-vision setting mode according to the request of the user. step)

Each display device 100 sets an ID corresponding to its own arrangement according to the identified connection state. In step 305, each display device 100 receives an ID from a user, Or an ID corresponding to the arrangement of the respective display devices may be allocated in the control unit 140 of the display device 100 set as the master.

An ID assigned to each of the display devices 100 may be set not only for the ID for the display device 100 but also for the display module 131 and the speaker 132 configured in the display device 100 .

Therefore, the ID set in each display device 100 is stored in the storage unit 141 (step 310), and when the ID is stored by the user's request, the multi-vision setting mode is terminated.

 The video and audio output operations according to the multi-vision configuration according to the multi-vision setting of the display device 100 for the multi-vision configuration will be described. FIG. 4 is a flowchart illustrating a control operation of the multivision according to an exemplary embodiment of the present invention, and FIG. 5 is a diagram illustrating an exemplary video and audio output according to a multivision configuration. .

The display devices 100 constituted by multi-vision operate in a video output mode for outputting images and audio received from the outside (step 400). At this time, the plurality of display devices 100 are connected to transmit the received images to the plurality The control unit 140 of each display device 100 displays the display device 100 in the display device 100 according to the execution of the user or the multivision mode when the display device 100 is set to operate in the multi- And identifies the ID stored in the storage unit 141 (step 410)

The control unit 140 of each display device 100 confirms the video and audio to be output corresponding to the respective IDs when the identification of the assigned IDs is completed. Accordingly, enlargement of the image to be output by the display module 132 of the display device 100 positioned at 1x1 with respect to the original output image is performed as shown in the example of FIG. 5 (step 420a) do. The control unit 140 causes the display module 132 to display an enlarged image corresponding to the assigned ID. In operation 420b,

After that, the image corresponding to the remaining portion except for the image to be output to the display module 132 of the display device 100 may be deleted (Step 420c). Upon deletion of the image that is excluded from the output, 141 and the image memory unit 124 can be prevented from being overloaded.

5, the display module 100 of the display device 100 corresponding to each ID is connected to the original image received for the image output according to the multi-vision configuration in each of the display devices 100, ) To enlarge and delete the image to be output, respectively, and output the corresponding image in DP_1, DP_2, DP_3, and DP_4, respectively.

In case of multivision audio output, the audio channel to be output from the speaker 134 of each display device 100 is divided according to the ID identified by the controller 140 of each display device 100. 420d, That is, in the embodiment of the present invention, the display devices 100 are arranged in 2x2 to constitute a multi-vision, and two speakers 134 of each display device 100 are constituted.

Accordingly, the audio channel is divided into the SPK_1, the SPK_2, the SPK_3, the SPK_4, the SPK_5, the SPK_6, the SPK_7, and the SPK_8 according to the ID assigned to the input broadcast signal. For example, audio output according to an audio channel corresponding to a received broadcast signal can be output as shown in the following table.

[Table 1]

Display ID Speaker ID Output audio channel Speaker ID Output audio channel DP_1 SPK_1 Left front SPK_2 Center DP_2 SPK_3 Center SPK_4 Right front DP_3 SPK_5 Left front SPK_6 Left rear + Woofer DP_4 SPK_7 Right rear + Woofer SPK_8 Right Front

As described above, when the multivision is configured with the arrangement of the plurality of display devices 100, the respective IDs are set according to the arrangement of the display devices 100 or the setting of the user. Then, according to the set ID, only the image to be outputted from each display device 100 is enlarged and outputted to the display module 132, and only the audio of the corresponding channel is output.

1 is a conventional multivision configuration diagram.

2 is a block diagram of a display device to which the present invention is applied.

3 is a flowchart of a display device display device display device according to an embodiment of the present invention;

4 is a flowchart illustrating a video and audio output operation according to a multi-vision according to an embodiment of the present invention;

5 is a multi-vision configuration diagram according to an embodiment of the present invention;

Claims (10)

A video signal output unit for outputting an image received from the outside or a stored image, enlarging and outputting the image at a predetermined magnification, and outputting an image of a predetermined area in the enlarged image; A display unit for displaying an image of a predetermined area output from the video signal output unit; A voice signal output unit outputting audio or stored audio received from the outside having a plurality of channels and outputting the audio or the stored audio to the speaker according to the plurality of channels; A speaker for outputting audio corresponding to the audio channel received from the audio signal output unit; A storage unit for storing an ID according to a layout state of the plurality of display devices; A control unit configured to identify a predetermined ID according to a layout state of the plurality of display devices, to expand an image corresponding to the identified ID, and to divide an audio channel corresponding to the identified ID, And a control unit for controlling the display unit and the speaker to output an enlarged image corresponding to the preset area and an audio corresponding to the divided channel according to a status of the display unit and the speaker. The apparatus of claim 1, wherein the video signal output unit Wherein the size of the zoom area is set and enlarged according to the number of devices having IDs set therein. The apparatus as claimed in claim 1, wherein the voice signal output unit Divides a channel of an audio to be output according to the number of devices to which the ID is set, and outputs the divided audio from the speaker according to the set ID. The multivision system according to claim 1, wherein the plurality of display devices are in the form of a matrix composed of a predetermined number of rows and columns. The multivision system according to claim 1, wherein the IDs allocated to the plurality of display devices are automatically assigned sequentially from the first row to the first column according to the arrangement of the IDs. The multi-vision system according to claim 1, wherein the plurality of display devices are connected through serial communication. Setting an ID of each of the plurality of displays according to a layout state of the plurality of display devices; Confirming a predetermined ID according to the arrangement state of the plurality of display devices; Enlarging an image corresponding to the identified ID and dividing a channel of audio corresponding to the identified ID; And outputting the enlarged image corresponding to the predetermined area and the audio corresponding to the divided channel to the display unit and the speaker according to the arrangement state of the plurality of display devices. . 8. The method as claimed in claim 7, wherein the step of receiving the ID comprises receiving an input from a user. 8. The method as claimed in claim 7, wherein the enlarged area of the image is preset and stored in an enlarged area corresponding to the assigned ID. 8. The method as claimed in claim 7, wherein the output of each audio channel corresponds to an assigned ID, and the audio channel to be output is preset and stored.

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