KR20090033976A - Method for controlling and composing multi vision using display device - Google Patents

Abstract

A configuration and a control method of multi-vision using a display device implementing a multi-screen by simple installation are provided to implement the multi-vision by a plurality of image forming apparatuses without additional equipment. If the confirmation of allocated ID is completed(410), the controller of each display apparatus confirms image and audio outputted corresponding to each ID. The enlargement outputted about image is enforced(420a). The controller controls corresponding display module(420b). The controller deletes the image corresponding to the rest outputted in the display module of the corresponding display apparatus except for the image(420c). The controller divides audio channels outputted in the speaker of each display apparatus according to the confirmed ID(420d). The controller outputs the audio signal corresponding to the allocated ID(420e).

Description

Method for controlling and composing multi vision using display device

The present invention relates to a display device, and more particularly, to a configuration of a multi-vision using a plurality of display devices and a control method thereof.

Recently, the demand for and supply of display equipment for realizing ultra-large screens without taking up space such as liquid crystal displays (PDPs), plasma display panels (PDPs), projectors, etc. are increasing according to the preference for larger and slimmer display media. According to this situation, multi-vision has already been implemented using equipment such as PDP, LCD, projector, CRT, etc., and it is being applied to various types of performance and product exhibition.

Conventional multivision is equipped with a plurality of display devices as shown in Figure 1, and to install the intermediate signal control equipment for the display device to supply the video signal supplied from the video signal input source to the corresponding display devices It has an implementation form. In addition, a separate speaker for audio output according to a multi-vision implementation should be installed and connected to the plurality of display devices.

Therefore, it is implemented by manipulating the display device at each position according to the operation of the image splitting device, which is an intermediate signal control device, and accordingly, each display device simply displays the video signal supplied to it and outputs audio from a separate speaker. .

Therefore, in the conventional multi-vision implementation, as the intermediate signal control equipment is used between the video signal input source and the display devices, a cost control or a certain level or more control technology is required. In addition, a spatial loss may occur as a separate audio device is provided.

An object of the present invention is to provide a multi-vision and a method of implementing the screen that can be configured in a low cost, a storage cost and to implement a multi-screen by a simple installation to solve the problems of the prior art.

One aspect of the present invention for achieving the above object is to output an image received from the outside or a stored image, to enlarge the image at a predetermined magnification and to output the image signal output to output an image of a predetermined area in the enlarged image part; A display unit which displays an image of a predetermined area output from the image processor; An audio signal output unit for outputting audio received from the outside or stored audio and outputting the audio to a corresponding speaker according to the input audio channel; A speaker for outputting audio corresponding to the corresponding audio channel received from the voice signal output unit; A storage unit for storing an ID according to an arrangement state of the display device; A plurality of display devices configured to control to enlarge or divide the output image or audio corresponding to a predetermined ID, and to control to output the image or audio corresponding to the predetermined area and channel to the display unit or a speaker It is characterized by consisting of a dog.

In addition, another aspect for achieving the object of the present invention comprises the steps of setting the respective ID to a plurality of display devices; 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.

Such a multi-vision according to the present invention can easily implement the multi-vision by configuring only a plurality of video display devices without expensive separate equipment.

In addition, by configuring a multi-vision using a plurality of video display devices to facilitate the output of multiple audio, the user can easily enjoy the video and audio.

Hereinafter, a configuration of a multivision 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. 2. The display device 100 includes a receiver 110, a processor 120, an outputter 130, a controller 140, a storage 141, and a user interface 160.

The receiving unit 110 may include an external signal input unit 111 and a tuner unit 112, and the processing unit 120 may include an image / audio signal switching unit 121, an A / D converter 122, and an MPEG decoder. And an image / audio signal processing unit 123 and an image memory unit 1244, and may include the output unit 130 and a 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, etc., and provides it to the video audio signal switching unit 121.

The tuner 112 tunes at least one channel according to a control signal of the controller 140 and decodes or separates the video / audio / data signals received through the tuned channel to switch the video / audio signal switch 121. ) And so on. The data signal includes EPG (Electronic Program Guide) information including broadcast information such as start time and end time of a broadcast program broadcast in 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. It may include. The video / audio signal output through the VSB decoder has a form of a transport stream (TS).

The video / audio signal switching unit 121 selects at least one channel provided from the external signal input unit 111 and the tuner unit 112 and separates the video / audio signal of the channel as necessary. The MPEG decoder and the video / audio signal processor 123 are provided. 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. The MPEG decoder and the video / audio signal processor 123 may be provided, and the analog audio signal may be provided to the note sign 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 may be provided to the MPEG decoder and the video audio signal processor 123.

The MPEG decoder and the video / audio signal processor 123 restore and process the video / audio stream among the output signals of the video / audio signal converter 121 to video / audio data, and the processed video signal is processed. The audio signal provided to the video signal output unit 131 and processed is provided to the audio signal output unit 133. In addition, the MPEG decoder and the video / audio signal processor 123 may mix the OSD data provided by the controller 140 with the restored and processed video signal.

The image memory unit 124 provides a memory area required for decoding and signal processing of the MPEG decoder and the video / audio signal processor 123. In particular, this part can be used in the search step of finding another channel that broadcasts the same content as the storage unit 141. This part 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 through the display module 132, and the audio signal output unit 133 The audio signal output from the MPEG decoder and the video / audio signal processor 123 is processed in a form that can be output through the speaker 134.

In particular, the image signal output unit 131 according to an embodiment of the present invention performs a function of checking an enlarged area of an image to be output to the display module 132, and enlarging the image and outputting 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 audio corresponding to each channel according to the audio output of 5.1Ch.

The controller 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 device 100 as necessary. Can be designed and connected. In particular, the control unit 140 according to an embodiment of the present invention is configured to be multi-vision to expand the image of the output target in the video signal output unit 131 according to the position of the video device arranged for the output image and audio, The audio signal output unit 133 is controlled to identify a channel of the audio and to select and output the audio of the corresponding channel.

In addition, any one of the plurality of display devices configuring the multivision may be set to perform a master function from a user or according to the arrangement of the display devices. Accordingly, the controller 140 of the set display device may set a corresponding portion of each video or audio to be output from the plurality of display devices in multivision and output a control signal according to each display device.

In addition, the storage 140 stores a video or audio to be output from each display device when outputting the video and audio to the multi-vision using a plurality of display devices. In addition, it stores information about an area of an output target image and an audio channel according to 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 an array or a master of the display device according to the receiver 110 that receives a broadcast signal or a broadcast signal through an external storage medium. The storage unit 141 stores information on an area of an image or an audio channel to be output according to whether the image is recognized or outputted from the display module 132 and the speaker 134 of each display device 100 according to the stored information. It is configured to include a control unit 140 for controlling to enlarge the image and output the audio channel.

An embodiment of the configuration of the multi-vision and its operation using the plurality of display devices 100 including the above configuration will be described in more detail. 3 is a flowchart illustrating a multi-vision setting operation when a multi-vision is configured using a plurality of display devices 100.

Arranging the display device 100 for configuring the multi-vision by the user, and to perform the multi-vision setting mode for each display device 100 set as each of the arranged display device 100 or a master do. In the embodiment of the present invention, a configuration of a display device for configuring a multi-vision and an arrangement thereof according to the present invention will be described with an example of 2 × 2. In addition, the control signal input from the user according to the multi-vision setting mode will be described as an example of being input via the remote controller through the interface unit 160 of the display device 100.

According to the user's request, the controller 140 of the display apparatus 100 performs a step of checking a connection state configured as multivision at 2x2 with each other in response to the multivision setting mode being performed. step)

Each display device 100 sets an ID corresponding to its arrangement according to the checked connection state (step 305). Each display device 100 receives an ID from a user and stores the storage unit 141. FIG. The ID may be set in such a manner as to store the data in the storage device 100 or to allocate an ID corresponding to the arrangement of the display devices in the control unit 140 of the display device 100 set as the master.

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

Accordingly, the IDs set in the display apparatuses 100 are stored in the storage unit 141 (step 310). When the storing of the set IDs is completed by the user request, the multi-vision setting mode is terminated.

 The operation of outputting video and audio according to the multivision configuration according to the multivision setting of the display apparatus 100 for configuring the multivision as described above will be described. 4 is a flowchart illustrating a control operation of a multivision according to an exemplary embodiment of the present invention, and FIG. 5 is an exemplary view of video and audio output according to a multivision configuration. .

The display devices 100 configured as multi-visions operate in an image output mode for outputting video and audio received from the outside (step 400). At this time, the plurality of display devices 100 are connected to receive the received video. When the display device is set to operate in a multivision mode for outputting a single image (step 405), the controller 140 of each display device 100 is provided to the display device 100 according to the user or the multivision mode execution. Check the assigned ID stored in the storage unit 141 (step 410)

When the verification of the assigned ID is completed, the controller 140 of each display device 100 checks the video and audio to be output corresponding to each ID. Therefore, the image to be output is magnified (step 420a). That is, as shown in the example of FIG. 5, the image of the image to be output by the display module 132 of the display device 100 positioned at 1 × 1 is executed. do. Accordingly, the controller 140 causes the corresponding display module 132 to display the enlarged image corresponding to the assigned ID (step 420b).

Thereafter, the image corresponding to the remaining portion other than the image to be enlarged and output to the display module 132 of the display device 100 may be deleted (step 420c). 141 and overloading of the image memory unit 124 may be prevented.

5, the display module 132 of the display device 100 corresponding to each ID for the original image received for the image output according to the multi-vision configuration to each of the display devices 100 as illustrated in FIG. 5. ) To enlarge and delete the image to be output and output the corresponding image from DP_1, DP_2, DP_3, and DP_4, respectively.

In addition, in the case of the audio output of the multi-vision, the audio channel to be output from the speaker 134 of each display device 100 is divided according to the ID confirmed by the controller 140 of each display device 100 (420d). That is, in the exemplary embodiment of the present invention, the display device 100 is arranged in 2 × 2 to configure a multivision, and for example, two speakers 134 of each display device 100 are configured.

Accordingly, since the audio for the input broadcast signal is 5.1ch, the audio channel is divided and output to SPK_1, SPK_2, SPK_3, SPK_4, SPK_5, SPK_6, SPK_7, and SPK_8 according to the assigned ID (step 420e). For example, the audio output according to the audio channel corresponding to the received broadcast signal may 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 multi-vision is configured by the arrangement of the plurality of display apparatuses 100, each ID is set by the arrangement of the display apparatuses 100 or the user's setting. Subsequently, the image to be output from each display device 100 is enlarged and output to the display module 132 according to the set ID, and only the audio of the corresponding channel is output.

1 is a conventional multi-vision configuration diagram.

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

3 is a flow chart illustrating a display device according to an embodiment of the present invention.

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

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

Claims (10)

An image signal output unit configured to output an image received from the outside or a stored image, enlarge the image at a preset magnification, and output an image of a predetermined region from the enlarged image; A display unit which displays an image of a predetermined area output from the image processor; An audio signal output unit for outputting audio received from the outside or stored audio and outputting the audio to a corresponding speaker according to the input audio channel; A speaker for outputting audio corresponding to the corresponding audio channel received from the voice signal output unit; A storage unit for storing an ID according to an arrangement state of the display device; A plurality of display devices may be configured to be configured to be enlarged or divided to output an image or audio corresponding to a preset ID, and to be configured to control to output an image or audio corresponding to the preset area and channel to the display unit or a speaker. Multivision system, characterized in that configured. The method of claim 1, wherein the image signal output unit The multi-vision system, characterized in that to enlarge by setting the size of the zoom area according to the number of devices set the ID. The method of claim 1, wherein the audio signal output unit And dividing a channel of audio to be output according to the number of devices having an ID set, and outputting the divided audio from a corresponding speaker according to the set ID. The multi-vision system of claim 1, wherein the plurality of display devices are in a matrix form consisting of a predetermined number of rows and columns. The multi-vision system according to claim 1, wherein the IDs assigned to the plurality of display devices are automatically assigned sequentially from one row to one column according to the arrangement. The multivision system of claim 1, wherein the plurality of display devices are connected through serial communication. Receiving respective IDs for the plurality of display devices; 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 method of claim 7, wherein the receiving of the ID is set according to the arrangement state of the display device or received from a user. The method of claim 7, wherein the magnified area of the image is stored in advance with a magnified area corresponding to an assigned ID. The method of claim 7, wherein the output of each channel of the audio is pre-set and stored as an audio channel to be output so as to correspond to an assigned ID.

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