KR102369826B1 - Display device, method of controlling thereof and display system - Google Patents

Abstract

A display device is disclosed. A display device according to various embodiments of the present disclosure includes a display, an external device, a communication unit communicating with a first peripheral device and a second peripheral device, and a first image received from the external device and a second image received from the first peripheral device and a processor that transmits each of the images to the second peripheral device and controls the display to display at least one of the first image and the second image.

Description

Display device, control method thereof, and display system { DISPLAY DEVICE, METHOD OF CONTROLLING THEREOF AND DISPLAY SYSTEM }

The present disclosure relates to a display device, a control method thereof, and a display system, and more particularly, to a display device capable of changing a data source without re-establishing a connection between a plurality of display devices, a control method thereof, and a display system.

A display system composed of a plurality of display devices is a technology for expressing images by using a plurality of display devices together for purposes such as advertisement, entertainment, sports, and broadcasting.

For example, in a display system composed of a plurality of display devices, each display device constituting a display system composed of a plurality of display devices simultaneously displays the same image or displays different images and combines them into one whole image It was used to display in the form of

In this case, an external device connected to one display device among a plurality of display devices constituting the display system serves as a data source for providing an image.

In this case, in order to use an external device connected to another display device as a data source, it is inconvenient to have to re-establish the connection of a plurality of display devices constituting the display system.

Accordingly, there is a need for a technology capable of changing a display device to which a data source is connected without resetting the connection of a plurality of display devices in the display system.

The present disclosure has been made in accordance with the above-mentioned necessity, and an object of the present disclosure is to provide a display system including a plurality of display devices capable of changing a display device to which a data source is connected without resetting the connection of the plurality of display devices, and An object of the present invention is to provide a display device and a method for controlling the same.

A display device according to an embodiment of the present disclosure for achieving the above object includes a display, an external device, a communication unit communicating with a first peripheral device and a second peripheral device, and a first image received from the external device and and a processor configured to transmit each of the second images received from the first peripheral device to the second peripheral device, and control the display to display at least one of the first image and the second image.

In this case, the communication unit receives the information on the external device from the external device, receives information on the second external device corresponding to the second image from the first peripheral device, and the processor, The image source list may be generated using the information of the external device and the information of the second external device, and the display may be controlled to display the generated image source list.

In this case, further comprising an input unit for receiving a selection of an image source from a user, wherein the processor controls the display to display the first image when the external device is selected as the image source, and the second external device When the image source is selected, the display may be controlled to display the second image.

Meanwhile, the processor is configured to display a preset area corresponding to the arrangement position among the received first image or the second image based on the arrangement positions of the display device, the first peripheral device, and the second peripheral device. The display can be controlled.

Meanwhile, the processor may control the communication unit to synthesize the first image and the second image and transmit the synthesized image to the second peripheral device.

In this case, the display may further include an input unit for receiving a selection from a user of a region to be displayed on the display among the synthesized images, and the processor may control the display to display a region corresponding to the selected region among the synthesized images. there is.

Meanwhile, the communication unit may receive a control command for the display device from the first peripheral device, and the processor may perform an operation corresponding to the received control command.

Meanwhile, the communication unit may receive a control command for the second peripheral device from the first peripheral device, and transmit the received control command to the second peripheral device.

Meanwhile, the method of controlling a display apparatus according to an embodiment of the present disclosure includes the steps of connecting to a first peripheral device and a second peripheral device, connecting to an external device, a first image received from the external device, and the first image received from the external device. transmitting each of the second images received from the first peripheral device to the second peripheral device, and displaying at least one of the first image and the second image.

In this case, the steps of receiving information on the external device from the external device, receiving information on a second external device corresponding to the second image from the first peripheral device, the received information on the external device and the The method may further include generating an image source list using information of the second external device and displaying the generated image source list.

In this case, the method may further include receiving a selection of an image source from a user, and the displaying may include, when the external device is selected as the image source, displaying the first image, and selecting the second external device as the image source. , the second image may be displayed.

Meanwhile, the displaying may include: based on the arrangement positions of the display device, the first peripheral device, and the second peripheral device, a preset area corresponding to the arrangement position among the received first image or the second image. can be displayed

The method may further include synthesizing the first image and the second image and transmitting the synthesized image to the second peripheral device.

In this case, the method may further include receiving, from a user, a selection of a region to be displayed on a display among the synthesized images, and the displaying may include displaying a region corresponding to the selected region among the synthesized images.

The method may further include receiving a control command for the display device from the first peripheral device and performing an operation corresponding to the received control command.

The method may further include receiving a control command for the second peripheral device from the first peripheral device and transmitting the received control command for the second peripheral device to the second peripheral device.

Meanwhile, a display system according to an embodiment of the present disclosure includes an external device providing content and a plurality of display devices, and among the plurality of display devices, a display device connected to the external device is received from the external device. Each of the first image and the second image received from the other display apparatus may be transmitted to another display apparatus, and at least one of the first image and the second image may be displayed.

In this case, a communication line may be connected to the plurality of display devices in a closed loop form.

The display device further includes a second external device connected to the other display device, wherein the display device connected to the external device receives information on the external device from the external device, and receives information on the second external device from the other display device. The information may be received, and an image source list may be generated using the received information of the external device and the information of the second external device, and the generated image source list may be displayed.

Meanwhile, the display device connected to the external device may synthesize the first image and the second image, and transmit the synthesized image to the other display device.

1 to 3 are diagrams for explaining a display system including a plurality of display devices according to an embodiment of the present disclosure;
4 is a block diagram illustrating a configuration of a display device constituting a display system according to an embodiment of the present disclosure;
5 is a block diagram illustrating a configuration of an external device constituting a display system according to an embodiment of the present disclosure;
6 is a view for explaining a user interface (UI) for selecting a display device connecting a data source;
7 to 10 are diagrams for explaining a display system for synthesizing images of a plurality of display devices according to another embodiment of the present disclosure;
11 is a view for explaining a UI for selecting a range of an image to be displayed from a synthesized image according to another embodiment of the present disclosure;
12 is a view for explaining a display system in which a control command is included in data provided from a data source according to another embodiment of the present disclosure;
13 and 14 are flowcharts for explaining a method of controlling a display device constituting a display system according to an embodiment of the present disclosure.

Since the present embodiments can apply various transformations and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the scope of the specific embodiments, and it should be understood to include all transformations, equivalents and substitutions included in the spirit and scope of the disclosure. In describing the embodiments, if it is determined that a detailed description of a related known technology may obscure the subject matter, the detailed description thereof will be omitted.

Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

The terms used in this application are only used to describe specific embodiments, and are not intended to limit the scope of rights. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as "comprises" or "consisting of" are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, and are intended to indicate that one or more other It should be understood that this does not preclude the possibility of addition or presence of features or numbers, steps, operations, components, parts, or combinations thereof.

In an embodiment, a 'module' or 'unit' performs at least one function or operation, and may be implemented as hardware or software, or a combination of hardware and software. In addition, a plurality of 'modules' or a plurality of 'units' are integrated into at least one module and implemented with at least one processor (not shown) except for 'modules' or 'units' that need to be implemented with specific hardware. can be

1 is a diagram illustrating a display system 1000 including a plurality of display devices and a plurality of external devices connected to each of the plurality of display devices according to an embodiment of the present disclosure.

The display system 1000 may include a display apparatus and a display apparatus, an external apparatus connected to the display apparatus, and a plurality of peripheral apparatuses connected to the display apparatus. Here, the external device may be a device that stores or provides content to the display device. For example, the external device may be a laptop computer, a smart phone, a set-top box, an external memory (USB, SD card, etc.). In addition, the plurality of peripheral devices may be other display devices that are the same as or different from the display device. In this case, the communication line connecting the plurality of peripheral devices and the display device may be connected in a closed loop form to sequentially transmit/receive content received from an external device according to the communication line connection order. Meanwhile, a plurality of peripheral devices may also be respectively connected to a plurality of external devices.

Referring to FIG. 1 , a display system 1000 includes a plurality of display apparatuses 100-1, 100-2, 100-3, and 100-4 and a plurality of external apparatuses 200-1 connected to the plurality of display apparatuses, respectively. 200-2, 200-3, and 200-4), and each display device simultaneously displays the same image, or divides and displays different images and combines the displayed images to form one entire image. can do. Meanwhile, in FIG. 1 , one external device is connected to each of the plurality of display devices 100-1, 100-2, 100-3, and 100-4, but two or more external devices may be connected to one display device. , a display device to which an external device is not connected may be included.

In the case of FIG. 1, four display apparatuses 100-1, 100-2, 100-3, and 100-4 simultaneously display one image of an apple. The source of each image displayed on the four display apparatuses 100-1, 100-2, 100-3, and 100-4 is the four display apparatuses 100-1, 100-2, 100-3, and 100-4. ), any one of the four external devices 200-1, 200-2, 200-3, and 200-4 connected to each other.

For example, an apple image is received from the first external device 200-1 to which the first display device 100-1 is connected, and the received apple image is displayed on the second, third, and fourth display devices 100-2. , 100-3, 100-4) to display the transmitted apple image on the four display devices 100-1, 100-2, 100-3, and 100-4. As described above, the first display device 100-1 connected to the first external device 200-1 serving as a source source of the image may be called a host device, and an image from the first display device 100 may be displayed. The second, third, and fourth display apparatuses 100 - 2 , 100 - 3 and 100 - 4 that are received and displayed may be referred to as slave apparatuses.

In the above description, for convenience of explanation, the first external device 200-1 is limited to an image source, but in actual implementation, not only the first external device 200-1 but also the second to fourth external devices ( At least one of 200-2 to 200-4) may be implemented as an image source.

Meanwhile, although it has been described above that four display devices are used, this is only for convenience of description, and the number of display devices constituting the display system 1000 is not limited thereto.

2 and 3 are block diagrams conceptually illustrating a display system including a plurality of display devices according to an embodiment of the present disclosure. Specifically, FIG. 2 illustrates a display of one of the first to n-th display apparatuses 100-1, 100-2, ..., 100-n configuring the display system 1000-1 according to an embodiment of the present disclosure. It is a block diagram illustrating an embodiment in which the external device 200 - 1 is connected to the device. And, FIG. 3 illustrates a plurality of display apparatuses among the first to n-th display apparatuses 100-1, 100-2, ..., 100-n constituting the display system 1000-2 according to an embodiment of the present disclosure. It is a block diagram showing an embodiment in which the external devices 200-1 and 200-n are connected to the .

Referring to FIG. 2 , any one of first to n-th display apparatuses 100-1, 100-2, ..., 100-n constituting a display system 1000-1 according to an embodiment of the present disclosure It may be connected to the external device 200 - 1 . In this case, the external device 200 - 1 may serve as a data source that provides an image to the connected first display device 100 - 1 . Specifically, the data source may be an image source for an image to be displayed on the display device. For example, the plurality of external devices may be a notebook computer, a smart phone, a set-top box, an external memory (USB, SD card, etc.). Meanwhile, although one external device is illustrated and described above as being connected to one display device, in actual implementation, two or more external devices may be connected to one display device.

Specifically, the external device 200 - 1 may be connected to a connection port provided in the first display device 100 - 1 by wire. In this case, the connection port provided in the display device is at least one of HDMI (High Definition Multimedia Interface), DVI (Digital Visual Interface), RGB (Red Green Blue), DSUB, S-Video (Super Video), Component Video, and Composite Video. can be Alternatively, it may be connected in a wireless manner rather than a wired method.

A plurality of display devices constituting the display system 1000 - 1 may be connected in a closed-loop format to sequentially receive or transmit various data, commands, and contents according to a preset connection order. In this case, in the closed loop, each of the plurality of display devices is connected to each of two other adjacent display devices, and when connected by a wired cable, the plurality of display devices may be connected in a circle. Specifically, the display apparatus may receive an image from one other display apparatus among a plurality of other display apparatuses, or may transmit received data to the other display apparatus among the plurality of other display apparatuses.

According to the connection state shown in FIG. 2 , for example, the first display apparatus 100 - 1 is indirectly connected to the nth display apparatus 100 - n. That is, if data is to be transmitted from the first display apparatus 100-1 to the n-th display apparatus 100-n, the data is transmitted to the n-th display apparatus 100-n through the second display apparatus 100-2. can be transmitted to

For example, when the first display apparatus 100-1 is connected to the external apparatus 200-1, the first display apparatus 100-1 transmits information of the connected first external apparatus 200-1 to the second display apparatus 100-1. may be transmitted to the display device 100 - 2 . In this case, the information of the external device may be device information including the type of the external device, the model name of the external device, the type of the connection port, and the like.

Meanwhile, the second display apparatus 100 - 2 may transmit information on the external apparatus 200 - 1 received from the first display apparatus 100 - 1 to the nth display apparatus 100 - n. Meanwhile, the n-th display apparatus 100 - n may transmit the received information on the external apparatus 200 - 1 to the first display apparatus 100 - 1 .

Here, the second display apparatus 100 - 2 and the nth display apparatus 100 - n may be directly or indirectly connected, and when indirectly connected, the second display apparatus 100 - 2 and the nth display apparatus 100 - n ( Between 100-n), at least one display device may be further connected.

As described above, the information on the external device connected to each display device is transmitted with a direction so that the information on the external device connected to the other display device is transmitted in one direction between the plurality of display devices connected in a circular closed loop form. can be shared with each other.

As described above, when a plurality of display devices share information about an external device connected to another display device, the user can select any one of the plurality of display devices to display an image provided from the connected external device. there is.

Meanwhile, the external device 200 - 1 may transmit an image to the connected display device. In this case, in the image transmitted from the external device to the display device, the first to n-th display devices 100-1, 100-2, …, 100-n described above receive the information of the external device 200-1. The first to n-th display apparatuses 100-1, 100-2, ..., 100 are transmitted with directionality to be transmitted in one direction between a plurality of display apparatuses connected in a circular closed loop in the same manner as the mutual sharing method. -n) can be shared with each other.

Meanwhile, the display device connected to the external device may transmit an image received from the connected external device to another display device. For example, each of the plurality of display apparatuses may transmit a received image or data corresponding to the image to another display apparatus through a connection port.

As described above, the first to nth display apparatuses 100-1, 100-2, ..., 100-n share the same image to display the shared image, respectively. On the other hand, the display system 1000-1 according to an embodiment of the present disclosure displays an image based on the arrangement positions of the first to n-th display apparatuses 100-1, 100-2, ..., 100-n. If divided into regions, each display device displays a divided image of a region corresponding to an arrangement position of each display device, and the displayed images are combined, one entire image may be configured.

Meanwhile, in the above description, the first to nth display apparatuses 100-1, 100-2, ..., 100-n have been described as being limited to displaying the same image, but each of the display apparatuses may display a different image, An image received from an external device connected to another display device may be displayed. This will be described in detail below with reference to FIGS. 7 to 11 .

Meanwhile, a control command for controlling at least one of the first to n-th display apparatuses 100-1, 100-2, ..., 100-n is received together with an image from an external device serving as an image source and the first to n-th display apparatuses 100-1, 100-2, ..., 100-n. The display apparatuses 100-1, 100-2, ..., 100-n may be shared with each other. This will be described in detail below with reference to FIG. 12 .

In FIG. 2 , each display device is directly connected to an adjacent display device and connected to transmit data with directionality. However, according to various embodiments of the present disclosure, the connection type is not limited thereto. For example, each display device may be directly connected to all other display devices, or may be connected to transmit data in both directions.

Meanwhile, in FIG. 2 , the connection of the display devices is illustrated by a single line, but may be implemented with two or more communication paths. In addition, communication may be performed using a wireless communication method instead of a wired communication method.

Referring to FIG. 3 , a plurality of displays among the first to n-th display apparatuses 100-1, 100-2, ..., 100-n configuring the display system 1000-2 according to an embodiment of the present disclosure. Each device may be connected to a plurality of external devices 200-1, ..., 200-n. Specifically, the first to n-th display apparatuses 100-1, 100-2, ..., 100-n may include display apparatuses not connected to an external apparatus as well as display apparatuses connected to an external apparatus. In this case, the plurality of external devices 200-1, ..., 200-n may serve as data sources for providing images to the plurality of display devices 100-1, ..., 100-n connected to each other. Specifically, the data source may be an image source for an image to be displayed on the display device. For example, the plurality of external devices may be a notebook computer, a smart phone, a set-top box, an external memory (USB, SD card, etc.). Meanwhile, although one external device is illustrated and described above as being connected to one display device, in actual implementation, two or more external devices may be connected to one display device.

Specifically, the plurality of external devices 200-1, ..., 200-n may be connected to the connection ports provided in the first to n-th display devices 100-1, ..., 100-n by wire. In this case, the connection port provided in the display device is at least one of HDMI (High Definition Multimedia Interface), DVI (Digital Visual Interface), RGB (Red Green Blue), DSUB, S-Video (Super Video), Component Video, and Composite Video. can be Alternatively, it may be connected in a wireless manner rather than a wired method.

A plurality of display devices constituting the display system 1000 - 2 may be connected in a closed-loop format. As for this, since it is described in the description of FIG. 2 , a duplicate description will be omitted.

According to the connection state shown in FIG. 2 , for example, the first display apparatus 100 - 1 is indirectly connected to the nth display apparatus 100 - n. That is, if data is to be transmitted from the first display apparatus 100-1 to the n-th display apparatus 100-n, the data is transmitted to the n-th display apparatus 100-n through the second display apparatus 100-2. can be transmitted to

For example, when the first display apparatus 100 - 1 is connected to the first external apparatus 200 - 1 , the first display apparatus 100 - 1 displays information on the connected first external apparatus 200 - 1 . It can be transmitted to the second display device 100 - 2 . In this case, the information of the external device may include a type of the external device, a model name of the external device, a type of a connection port, and the like.

On the other hand, the second display apparatus 100 - 2 not connected to the external apparatus may display information of the first external apparatus 200 - 1 received from the first display apparatus 100 - 1 together with the nth display apparatus 100 . -n) to send.

Meanwhile, in actual implementation, the second display device 100-2 may be connected to a second external device. In this case, the second display device 100-2 connected to the second external device may provide information on the second external device. And, the information on the first external device 200 - 1 received from the first display device 100 - 1 may be transmitted to the nth display device 100 - n together.

Here, the second display apparatus 100 - 2 and the nth display apparatus 100 - n may be directly or indirectly connected, and when indirectly connected, the second display apparatus 100 - 2 and the nth display apparatus 100 - n ( Between 100-n), at least one display device may be further connected.

Meanwhile, the n-th display device 100-n connected to the n-th external device 200-n displays the received information of the first external device 200-1 and the information of the n-th external device 200-n. It may be transmitted together with the first display device 100 - 1 . In this case, the information of the first external device 200 - 1 and the information of the nth external device 200 - n may be simultaneously transmitted or transmitted irrespective of the order.

On the other hand, the first display device 100-1, the information of the first external device 200-1 received from the first external device 200-1, and the n-th display device 100-n received from the Information of the n external device 200 - n may be transmitted to the second display device 100 - 2 together. Accordingly, the second display apparatus 100 - 2 may also share information on the nth external apparatus 200 -n connected to the nth display apparatus 100 -n.

In this way, information of an external device connected to each display device is transmitted with directionality so that the information of the external device connected to each display device is transmitted in one direction between the plurality of display devices connected in a circular closed loop form, so that the plurality of display devices can share information of the external devices connected to each other. can

As described above, when a plurality of display devices mutually share information on a connected external device, the user can use any one of the plurality of display devices to serve as an image source providing an image among the plurality of external devices. An external device can be selected.

Specifically, the display system 1000 - 2 displays the first to nth image source lists generated based on information of the first to nth external devices 200 - 1 , ..., 200 -n shared with each other. An external device that provides an image by displaying it on at least one of the display devices 100-1, 100-2, ..., 100-n may be selected from the user. A UI for displaying a list of a plurality of external devices will be described in detail below with reference to FIG. 7 .

Meanwhile, the present invention is not limited thereto, and among the plurality of external devices 200-1, …, 200-n respectively connected to the first to n-th display devices 100-1, 100-2, …, 100-n, a user If any one external device is used, it may be implemented in various ways, such as determining the external device being used as an external device providing an image.

Meanwhile, one external device determined as an external device providing an image among the plurality of external devices 200-1, ..., 200-n may transmit an image to the connected display device. In this case, the image transmitted from the external device to the display device is transmitted by the first to nth display devices 100-1, 100-2, …, 100-n described above by the plurality of external devices 200-1, … , 200-n) are transmitted with a direction to be transmitted in one direction between a plurality of display devices connected in a circular closed loop form in the same manner as the mutual sharing method, whereby the first to nth display devices 100-1 are transmitted. , 100-2, …, 100-n) can be shared with each other.

Meanwhile, the external device providing the image may be at least one of the plurality of external devices 200-1, ..., 200-n, and each display device connected to the external device determined as the image source providing the image is connected to each of the connected display devices. An image received from an external device may be transmitted to another display device. For example, each of the plurality of display apparatuses may transmit a received image or data corresponding to the image to another display apparatus through a connection port.

As described above, the first to nth display apparatuses 100-1, 100-2, ..., 100-n share the same image to display the shared image, respectively. On the other hand, the display system 1000-2 according to an embodiment of the present disclosure displays an image based on the arrangement positions of the first to n-th display apparatuses 100-1, 100-2, ..., 100-n. If divided into regions, each display device displays a divided image of a region corresponding to an arrangement position of each display device, and the displayed images are combined, one entire image may be configured.

Meanwhile, in the above description, the first to nth display apparatuses 100-1, 100-2, ..., 100-n have been described as being limited to displaying the same image, but each of the display apparatuses may display a different image, An image received from an external device connected to another display device may be displayed. This will be described in detail below with reference to FIGS. 7 to 11 .

Meanwhile, a control command for controlling at least one of the first to n-th display apparatuses 100-1, 100-2, ..., 100-n is received along with an image from an external device determined as an image source, and the first to n-th display devices are received. The n display apparatuses 100-1, 100-2, ..., 100-n may be shared with each other. This will be described in detail below with reference to FIG. 12 .

3 illustrates that each display device is directly connected to an adjacent display device and connected to transmit data with directionality, but according to various embodiments of the present disclosure, the connection type is not limited thereto. For example, each display device may be directly connected to all other display devices, or may be connected to transmit data in both directions.

Meanwhile, in FIG. 3 , the connection of the display devices is illustrated by a single line, but may be implemented with two or more communication paths. In addition, communication may be performed using a wireless communication method instead of a wired communication method.

4 is a block diagram illustrating a configuration of a display device constituting a display system according to an embodiment of the present disclosure.

Referring to FIG. 4 , the display apparatus 100 includes a communication unit 110 , a display unit 120 , an input unit 130 , a storage unit 140 , and a processor 150 .

The communication unit 110 is a configuration for performing communication between the display device 100 and an external device, and is a connection port provided in the display device 100 such as HDMI (High Definition Multimedia Interface), DVI (Digital Visual Interface), RGB ( Wired method using at least one of Red Green Blue), DSUB, S-Video (Super Video), Component Video, and Composite Video, or GSM (Global System for Mobile communication), UMTS (Universal Mobile Telecommunications System), LTE (Long Term Evolution) ), WiBRO (Wireless Broadband Internet), WiFi (Wireless Fidelity), may be a wireless communication method such as Bluetooth (Bluetooth).

Specifically, the communication unit 110 may communicate with an external device that provides an image to the display apparatus 100 . Once the external device is connected to the display apparatus 100 , information on the connected external device may be received from the external device. Thereafter, when it is determined that the external device connected to the display apparatus 100 is an external device serving as an image source providing an image, the communication unit 110 may receive an image from the external device. In this case, the communication unit 110 may receive an image or data corresponding to the image from an external device. Meanwhile, a control command for controlling at least one of a plurality of display devices constituting the display system according to an embodiment of the present disclosure may be received together with an image received through the communication unit 110 from an external device.

Meanwhile, the communication unit 110 may communicate with other display devices constituting the display system according to an embodiment of the present disclosure. Specifically, the communication unit 110 may transmit information or an image of the external device received from the external device through the communication unit 110 to another display device. Alternatively, the communication unit 110 may receive an image from another display device. In this case, the received image may be transmitted from an external device connected to the other display device to the other display device.

In particular, when an external device providing an image is determined, the communication unit 110 may receive and transmit an image according to the determined information on the external device. Specifically, when an external device connected to the display device 100 is determined as the image source, the communication unit 110 sequentially transmits data received through the communication unit 110 to a plurality of other display devices according to information on the connected external device. To be transmitted, information of an external device may be transmitted to another display device that is different from one other display device that has transmitted information of an external device to the display device 100 among a plurality of other display devices. This is because data or images are directional and transmitted in one direction between the plurality of display devices.

On the other hand, when an external device connected to another display device is determined as the image source, the communication unit 110 receives an image from one other display device among a plurality of other display devices, and is distinguished from another display device that has transmitted the received image. It can be transmitted to another display device. Specifically, depending on the arrangement order of the display apparatus 100 among the plurality of display apparatuses, whether the received image is transmitted to the other one of the plurality of other display apparatuses may vary. For example, if the arrangement order of the display apparatus 100 is not the last, an image received from one other display apparatus may be transmitted to another other display apparatus. On the other hand, if the arrangement order of the display apparatus 100 is the last, there is no need to transmit an image received from one other display apparatus to the other display apparatus.

Meanwhile, the image transmitted to or received from another display apparatus through the communication unit 110 is synthesized by combining an image to be displayed on the display, data corresponding to the image, and images transmitted from a plurality of display apparatuses constituting the display system. It may include one image, and a control command for controlling at least one of the plurality of display devices may be received together with the image.

Meanwhile, the display 120 may display various images under the control of the processor 150 . Specifically, the display 120 may display a list of selectable image sources generated by the processor 150 . In this case, the user may select an external device as an image source providing an image to be displayed from among the plurality of image source lists displayed on the display unit 120 through the input unit 160 .

In addition, the display unit 120 may display an image provided from the selected image source. Specifically, if the image source is an external device connected to the display device 100 , the image received through the communication unit 110 is displayed, and if the image source is an external device connected to another display device, another display is performed through the communication unit 110 . Images received from the device can be displayed. In this case, the display 120 may display only a preset area corresponding to a preset position of the display apparatus 100 .

Meanwhile, the display unit 120 may display an image obtained by synthesizing each image provided from a plurality of external devices constituting a plurality of display systems according to an embodiment of the present disclosure, and may display only a partial region of the synthesized image. can do. This will be described in detail below with reference to FIGS. 7 to 11 .

The input unit 130 is configured to receive a user's selection, and may receive a control command for selecting an image source providing an image from among a plurality of image source lists displayed on the display unit 120 . In addition, the input unit 130 may receive a control command for selecting a partial region to be displayed on the display device from the synthesized image generated by synthesizing a plurality of images. For example, the input unit 130 receives a user's selection through a remote control device such as a remote control that communicates with the display device 100, or when the display unit 120 is configured as a touch screen, the display unit 120 With a configuration included in the , a selection by a user's direct touch may be input.

The storage unit 140 is configured to store data. In the storage 140 , information on an external device connected to the display device 100 , information on other external devices received from another display device, a plurality of image source lists and images generated based on information on a plurality of received external devices An image received from an external device determined as an image source providing .

The processor 150 controls the overall operation of the display apparatus 100 and the signal flow between the internal components 110 to 150 and performs a function of processing data, and controls the display apparatus 100 . A ROM in which a control program is stored and a RAM used as a storage area for storing signals or data input from the outside of the display apparatus 100 or corresponding to various operations performed on the display apparatus 100 are stored. may include

Specifically, the processor 150 controls the communication units 110 and 120 to receive information on a plurality of external devices connected to each of a plurality of display devices constituting the display system according to an embodiment of the present disclosure, and the received plurality of Generates a plurality of image source lists based on the information of the external device. In this case, the processor 150 may control the display 120 to display the generated list.

Meanwhile, the processor 150 may determine at least one external device providing an image among a plurality of external devices. In this case, the processor 150 may determine the external device selected by the user by the input unit 130 as the image source providing the image, or may determine the external device being used by the user as the image source.

The processor 150 may receive an image provided from an external device determined as an image source. Specifically, when the external device connected to the display device 100 is determined as the image source, the processor 150 receives an image from the connected external device through the communication unit 110 , and the external device connected to the other display device is the image source. When it is determined, data provided from an external device connected to another display device may be received from the other display device through the communication unit 110 . In this case, an image received from an external device connected to the display apparatus 100 may be referred to as a first image, and an image received from another display apparatus may be referred to as a second image.

Meanwhile, in the processor 150 , if the determined image source of the display apparatus 100 is an external device connected to another display apparatus and the determined image source of the other display apparatus is an external apparatus connected to the display apparatus 100 , the plurality of other display apparatuses The communication unit 110 may be controlled to receive a second image from one other display device among the plurality of display devices, and to transmit the first image received from the connected external device to another display device among a plurality of other display devices.

In addition, the processor 150 may transmit the received image to another display apparatus through the communication unit 110 so that the other display apparatus displays the received image. In this case, the other display device receiving the image from the display device 100 is at least one of a plurality of displays constituting the display system according to an embodiment of the present disclosure, and the other display device that transmits data to the display device 100 . It may be distinct from the device.

In this case, the plurality of displays constituting the display system according to an embodiment of the present disclosure together with the data received from the external device or one other display device and the image transmitted to the other other display device through the communication unit 110 . A control command for controlling at least one of the devices may be received or transmitted. In this case, when a control command for the display device 100 is input, the processor 150 performs an operation corresponding to the control command, and when receiving a control command for controlling another display device, transmits the received control command to a plurality of The communication unit 110 may be controlled to transmit to another display device among other display devices.

As described above, since the plurality of display apparatuses share a control command for controlling at least one of the plurality of display apparatuses, the display apparatus 100 or other displays constituting the display system in the external apparatus connected to the display apparatus 100 It is possible to control the device, so that the user's convenience can be improved.

Meanwhile, the processor 150 may control the display 120 to display the received image. In this case, the image displayed by the display unit 120 under the control of the processor 150 is a received image, an image corresponding to a preset area corresponding to a preset arrangement position of a plurality of display devices, and a plurality of external devices. It may be a synthesized image obtained by synthesizing the provided image and an image corresponding to a partial region of the synthesized image. In this case, an image obtained by synthesizing the first image received from the external device and the second image received from one other display device may be referred to as a third image.

As described above, since the plurality of display devices constituting the display system share information on the plurality of connected external devices, the external device serving as the image source may be changed without re-establishing the connection of the plurality of display devices.

5 is a block diagram illustrating a configuration of an external device constituting a display system according to an embodiment of the present disclosure.

Referring to FIG. 5 , the external device 200 includes a communication unit 210 , a storage unit 220 , and a processor 230 .

The communication unit 210 is a component for performing communication with the display device. Specifically, as described in the description of FIG. 4 , the communication unit 210 can be connected to the display device in a wired or wireless manner, and when the external device 200 and the display device are connected, the information of the external device 200 is may be transmitted to the display device.

In addition, when the external device 200 is determined as an image source providing an image, the communication unit 210 may transmit data stored in the storage unit 220 to the display device. In this case, the data may include at least one of an image to be displayed on the display device and a control command for controlling at least one of a plurality of display devices constituting the display system according to an embodiment of the present disclosure.

The storage 220 may store various programs and data necessary for the operation of the external device 200 . Specifically, the storage 220 may store data on content such as information or images of the external device 200 to be provided to the display device.

The processor 230 controls the overall operation of the external device 200 . Specifically, when the processor 230 is connected to the display device, the processor 230 controls the communication unit 210 to transmit information of the external device 200 to the display device, and when the external device 200 is determined as the image source, the storage unit ( The communication unit 210 may be controlled to transmit data stored in 220 to the display device.

Meanwhile, although not shown, it goes without saying that the external device 200 may further include a display, an input unit, and the like.

In this way, by transmitting information of the external device 200 to the display device so that a plurality of display devices constituting the display system according to an embodiment of the present disclosure share the information of the external device 200, the image source is external. Even if the device is changed, there is no need to re-establish the connection of the plurality of display devices.

6 is a diagram for explaining a user interface (UI) for selecting a display device to which an image source is connected. Specifically, FIG. 6 shows that it is assumed that the user controls the display system according to an embodiment of the present disclosure through the first display apparatus 100 - 1 , and the illustrated UIs are the second to fourth display apparatuses 100 . -2 to 100-4) can be applied, of course.

Referring to FIG. 6 , the first display apparatus 100 - 1 displays a plurality of selectable image source lists connected to a plurality of display apparatuses constituting the display system according to an embodiment of the present disclosure on the display 130 - 1 . can be displayed

Specifically, a plurality of selectable image source lists displayed on the display 130 - 1 include a type of connection port (HDMI, DSUB, DVI, etc.) of a display device for connecting an external device, and a display device to which each external device is connected. information (the number of the donated display device, the model name of the display device, resolution, etc.) and the data transmission path (set 1, set 2, etc.) determined by determining the external device as the image source. there is.

FIG. 6 illustrates an example in which the display system includes four display devices, and one external device is connected to each of the four display devices. For example, it may be displayed that the first display device 100 - 1 and the second display device are connected through an HDMI port, the third display device is connected through a DVI port, and the fourth display device is connected through a DSUB port.

Meanwhile, although not shown, the plurality of image source lists displayed on the display 130-1 include information including types of external devices (laptops, smart phones, set-top boxes, etc.) connected to each display device, model names, etc. It may include a list of images that can be provided by the device, and the like.

Meanwhile, the user may check a list of a plurality of image sources displayed on the display 130 - 1 and select an external device to serve as an image source that provides images. Specifically, the user may select an external device to provide data by using a remote control device such as a remote controller 300-1 capable of remotely controlling the first display device 100-1. On the other hand, if the display 130-1 is configured as a touch screen, the user may directly touch the display 130-1 without a separate remote control device to select an external device to provide data. .

Meanwhile, even if the external device providing the image is changed, the connection of the plurality of display devices does not need to be reconfigured, and only the data transmission path in the display system may be changed according to the external device providing the image. For example, as shown in FIG. 6 , when a user selects an external device connected to the second display device as an image source using the remote control 300-1, the external device connected to the second display device is transferred to the second display. The transmitted data is sequentially transferred to the third, fourth, and first display apparatuses as the plurality of display apparatuses are connected in a circular loop form, and is repeated from the first display apparatus to the second, third, and fourth display apparatuses can be delivered sequentially.

7 is a view for explaining a display system for synthesizing images of a plurality of display devices according to another embodiment of the present disclosure. A display system according to another embodiment of the present disclosure may include a plurality of display devices, and each of the plurality of display devices may be respectively connected to a plurality of external devices to receive images from the plurality of connected external devices.

Referring to FIG. 7 , the display system 2000 according to another embodiment of the present disclosure includes first to fourth display devices 100-1 to 100-4, and the first to fourth display devices 100- 1 to 100-4) may be respectively connected to a plurality of external devices to receive images corresponding to the images 10-2 to 10-4 from the connected external devices. In this case, the display system 2000 may generate the synthesized image 23 by synthesizing the images 10 - 2 to 10 - 4 received from a plurality of external devices. In this case, the composite image 23 may be generated as a first frame of the images 10 - 2 to 10 - 4 received from a plurality of external devices. In addition, the synthesized image 23 may be synthesized based on the arrangement positions of the plurality of display devices, and in the case of FIG. 7 , the first to fourth display devices 100-1 to 100-4 are arranged in a 2x2 form. , the composite image 23 may have a 2x2 shape. Hereinafter, for convenience of description, the transmission and reception of an image means that data corresponding to the image is transmitted and received.

Specifically, the first display apparatus 100 - 1 is not connected to an external device, or an image is not provided even though it is connected. Accordingly, the first image provided to the first display apparatus 100 - 1 may be displayed as a black screen. On the other hand, the second display device 100-2 receives the image 10-2 of the second external device from the external device connected to the second display device 100-2, and the received image 10-2 of the second external device ( 10 - 2 ) may be disposed on the upper right side corresponding to the arrangement position of the second display apparatus 100 - 2 to generate the composite image 21 . At this time, the upper left corresponding to the arrangement position of the first display apparatus 100-1 to which no image is provided, and the third and fourth display apparatuses 100-3 and 100-4 to which an image is not provided yet. The lower region may be a black screen. Next, the second display apparatus 100 - 2 may transmit the composite image 21 to the third display apparatus 100 - 3 .

Meanwhile, the third display apparatus 100 - 3 receives the image 10 - 3 of the third external apparatus from the external apparatus connected to the third display apparatus 100 - 3 , and the second display apparatus 100 - 2 . The synthesized image 22 is generated by arranging the image 10 - 3 of the third external device received in the synthesized image 21 received from can do. Then, the third display apparatus 100 - 3 may transmit the synthesized image 22 to the fourth display apparatus 100 - 4 .

Meanwhile, the fourth display apparatus 100 - 4 receives the image 10 - 4 of the fourth external apparatus from an external apparatus connected to the fourth display apparatus 100 - 4 , and the third display apparatus 100 - 3 The synthesized image 23 is generated by arranging the image 10 - 4 of the fourth external device received in the synthesized image 22 received from the lower left corresponding to the arrangement position of the fourth display apparatus 100 - 4 . can do. Next, the fourth display apparatus 100 - 4 may transmit the synthesized image 23 to the first display apparatus 100 - 1 . Thereafter, the composite image 23 sequentially transferred from the first display apparatus 100-1 to the second, third, and fourth display apparatuses 100-2 to 100-4 is transferred to the first to fourth display apparatuses 100. -1 to 100-4) and the images 10-2 to 10-4 of the second to fourth external devices provided from the connected external device may be included.

As described above, since images obtained by synthesizing all images provided from a plurality of external devices are shared with each other, images provided from external devices connected to all display devices constituting the display system 2000 can be checked on one display device.

Meanwhile, for convenience of explanation, a synthesized image is generated by arranging an image provided from an external device connected to the first display device 100-1, but in actual implementation, the second to fourth display devices 100-2 to 100 -4) and a synthesized image may be created by arranging the image provided from any one of the connected external devices.

FIG. 8 is a diagram for explaining in more detail a display system for synthesizing images of a plurality of display devices and displaying the images on the plurality of display devices according to another exemplary embodiment of FIG. 7 . In this case, each of the plurality of displays may be respectively connected to a plurality of external devices to receive images from the plurality of connected external devices, and may be connected to other display devices to receive and transmit a synthesized image and an image being synthesized.

Referring to FIG. 8 , in the display system 2000 according to another embodiment of the present disclosure, the first display apparatus 100-1 displays the composite image 23 in the method shown in FIG. 7 for second, third, and fourth It may be sequentially transmitted to the display apparatuses 100-2 to 100-4. In this case, the composite image 23 may be a first frame of images received from a plurality of external devices.

Meanwhile, the display system 2000 transfers the composite image 23 back from the first display apparatus 100-1 to the second, third, and fourth display apparatuses 100-2 to 100-4, and The synthesized image 23-1 may be generated by synthesizing the second frame of the image received from the external device.

Specifically, the first display apparatus 100 - 1 may receive the composite image 23 from the fourth display apparatus 100 - 4 . In addition, the first display apparatus 100 - 1 may transmit the provided synthetic image 23 to the second display apparatus 100 - 2 . Meanwhile, the first display apparatus 100 - 1 is not connected to an external device, or an image is not provided even though it is connected. Accordingly, the image 20-1 synthesized as the second frame provided together with the synthesized image 23 as the first frame in the first display apparatus 100-1 to the second display apparatus 100-2 is the first to second display apparatus 100-2. 4 Regions corresponding to the display apparatuses 100 - 1 to 100 - 4 may be a black screen or a white screen.

Meanwhile, the second display apparatus 100 - 2 may receive the synthesized image 23 as the first frame and the image 20 - 1 synthesized as the second frame from the first display apparatus 100 - 1 . Then, the second display device 100-2 receives the image 11-2 of the second external device from the external device connected to the second display device 100-2, and the first display device 100-1 An image synthesized by arranging the received image 11-2 of the second external device on the synthesized image 20-1 received from (21-1) can be created. At this time, the upper left corresponding to the arrangement position of the first display apparatus 100-1 to which no image is provided, and the third and fourth display apparatuses 100-3 and 100-4 to which an image is not provided yet. The lower region may be a black screen or a white screen. Then, the second display apparatus 100 - 2 may transmit the synthesized image 21-1 to the third display apparatus 100 - 3 .

Meanwhile, the third display apparatus 100 - 3 may receive the synthesized image 23 as the first frame and the image 21-1 synthesized as the second frame from the second display apparatus 100 - 2 . Then, the third display device 100-3 receives the image 11-3 of the third external device from the external device connected to the third display device 100-3, and the second display device 100-2 An image synthesized by arranging the received image 11-3 of the third external device on the synthesized image 21-1 received from (22-1) can be created. Then, the third display apparatus 100 - 3 may transmit the synthesized image 22-1 to the fourth display apparatus 100 - 4 .

Meanwhile, the fourth display apparatus 100 - 4 may receive the synthesized image 23 as the first frame and the image 22-1 synthesized as the second frame from the third display apparatus 100 - 3 . Then, the fourth display device 100-4 receives the image 11-4 of the fourth external device from the external device connected to the fourth display device 100-4, and the third display device 100-3 The synthesized image ( 23-1) can be created. Next, the fourth display apparatus 100 - 4 may transmit the synthesized image 23 - 1 to the first display apparatus 100 - 1 . Thereafter, the synthesized images 23-1 sequentially transferred from the first display apparatus 100-1 to the second, third, and fourth display apparatuses 100-2 to 100-4 are displayed on the first to fourth displays. All of the images 11-2 to 11-4 of the second to fourth external devices provided from an external device connected to the devices 100-1 to 100-4 may be included.

Meanwhile, a plurality of display devices constituting the display system 2000 may output a preset area in the composite image 23 as a first frame received from another display device. In other words, when synthesizing an image with the first frame of images received from a plurality of external devices, the plurality of display devices do not output until the synthesized image 23 is completed, and while synthesizing the image with the second frame, the first By transferring the synthesized image 23 together as a frame, a preset region in the synthesized image 23 may be output.

Thereafter, when the image 23-1 synthesized into the second frame is completed, the plurality of display devices sequentially deliver the image 23-1 synthesized as the second frame together while synthesizing the image in the third frame, and synthesize the image into the second frame. A preset area may be output from the image 23-1.

As described above, by mutually sharing images obtained by synthesizing images provided from a plurality of external devices, images provided from external devices connected to all display devices constituting the display system 2000 can be checked on one display device.

Meanwhile, for convenience of explanation, a synthesized image is generated by arranging an image provided from an external device connected to the first display device 100-1, but in actual implementation, the second to fourth display devices 100-2 to 100 -4) and a synthesized image may be created by arranging the image provided from any one of the connected external devices.

Hereinafter, an embodiment in which the image synthesized by the above method is output from a plurality of display devices will be described in more detail.

9 is a view for explaining a display system for displaying an image provided from an external device connected to another display device in one display device according to another embodiment of the present disclosure.

Referring to FIG. 9 , the display system 2000 according to another embodiment of the present disclosure includes first to fourth display devices 100-1 to 100-4, and the first to fourth display devices 100- 1 to 100-4) and the synthesized image 23 including all the images 10-2 to 10-4 of the second to fourth external devices provided from the external device connected to the first display device 100-1 It may be sequentially transmitted to the second, third, and fourth display devices 100 - 2 to 100 - 4 .

In this case, the first to fourth display devices 100 - 1 to 100 - 4 constituting the display system 2000 may display images provided from external devices connected to other display devices, respectively. Specifically, the user displays the image 10-2 of the second external device provided by the first display device 100-1 from the external device connected to the second display device 100-2 through the HDMI port, and the second display The device 100-2 displays the image 10-3 of the third external device provided from the external device connected to the third display device 100-3 through the DVI port, and the third display device 100-3 It may be set to display the image 10-4 of the fourth external device provided from the fourth display device 100-4 and the external device connected through the DSUB port.

Meanwhile, in the above, it is set to display an image provided from an external device connected to another adjacent display device, but in actual implementation, an image provided from an external device connected to another display device is displayed without considering whether it is adjacent to the display device to display the image. It can be set to display.

FIG. 10 is a view showing each display device displaying an image provided from an external device connected to another display according to the setting of each display device as shown in FIG. 9 .

Referring to FIG. 10 , the first display device 100-1 constituting the display system 2000 according to another embodiment of the present disclosure connects to the second display device 100-2 and the HDMI port according to a user's setting. Displays an image 10 - 2 of a second external device provided from a connected external device, and the second display device 100 - 2 displays a third image 10 - 2 provided from an external device connected to the third display device 100 - 3 through a DVI port. An image 10-3 of an external device is displayed, and the third display device 100-3 displays an image 10- of a fourth external device provided from an external device connected to the fourth display device 100-4 through a DSUB port. 4) can be displayed.

In this case, since there is no separate setting for the fourth display apparatus 100 - 4 , the image 10 - 4 of the fourth external apparatus provided from the external apparatus connected to the fourth display apparatus 100 - 4 can be displayed. there is. On the other hand, in the case where a separate setting is not made to display an image provided from an external device connected to another display device in one display device, in the above description, an image provided from an external device connected to one display device is displayed and described. However, it may be implemented as a black screen on which no image is displayed or a method of displaying the composite image 23 .

In this way, a plurality of images provided from a plurality of external devices connected to a plurality of display devices constituting the display system 2000 are synthesized, and images provided from external devices connected to other display devices can be displayed using the synthesized images. there is.

11 is a diagram for describing a UI for selecting a range of an image to be displayed from a synthesized image according to another embodiment of the present disclosure. Specifically, in FIG. 11 , it is assumed that the user controls the display system according to an embodiment of the present disclosure through the first display apparatus 100 - 1 , and the illustrated UIs are the second to fourth display apparatuses 100 . -2 to 100-4) can be applied, of course.

Referring to FIG. 11 , the first display apparatus 100-1 displays the composite image 23 on the display 130-1 in order to select a range of an image to be displayed on the display 130-1 from the synthesized image 23. can be displayed

At this time, although not shown, the user may select the range 91 of the image to be displayed on the display 130 - 1 with a remote control capable of remotely controlling the first display apparatus 100 - 1 . Specifically, it may be set to display only the image itself provided from any one of a plurality of external devices among the synthesized image 23 , but in the synthesized image 23 , the user may designate an area to be displayed on the display 130 - 1 . there is. For example, the user may set the synthesized image 23 to display a portion of the image of the second external device and adjacent images of the first, third, and fourth external devices together with the second image.

On the other hand, when the display 130-1 is configured as a touch screen, the user can directly touch the display 130-1 without a separate remote control device to select a range to be displayed.

Meanwhile, in the above description, the image to be displayed on the display 130-1 of the first display device 110-1 is limitedly illustrated and described, but in actual implementation, it is displayed on the displays of the second to fourth display devices. It may be implemented by selecting an image to be used on the display 130-1 of the first display device 110-1.

12 is a diagram for describing a display system in which an image and a control command are transmitted together by including a control command in data provided from an image source according to another embodiment of the present disclosure.

Referring to FIG. 12 , a display system 3000 according to another embodiment of the present disclosure includes first to fourth display devices 100-1 to 100-4, and a second display device 100-2. It may include a second external device 200 - 2 connected to the , and a fourth external device 200 - 4 connected to the fourth display device 100 - 4 .

In this case, the first to fourth display apparatuses 100 - 1 to 100 - 4 may share information of the second external apparatus 200 - 2 and the fourth external apparatus 200 - 4 with each other. Information sharing of the external device is the same as the method described in the description of FIGS. 2 and 3 , and detailed description thereof will be omitted.

Meanwhile, data provided from at least one of the connected second external device 200-2 and the fourth external device 200-4 controls at least one of the first to fourth display devices 100-1 to 100-4. It may include a control command for In this case, data including the control command may be shared with the first to fourth display apparatuses 100 - 1 to 100 - 4 .

Meanwhile, in the above description, only the second display apparatus 100 - 2 and the fourth display apparatus 100 - 4 are respectively illustrated and described as being connected to each other, but in actual implementation, a plurality of displays constituting the display system 3000 . One or more external devices may be connected to all of the devices.

As described above, since a control command for controlling at least one of the plurality of display devices is included in the data provided from the external device connected to the display device and transmitted together with the image, control of other display devices constituting the display system can be performed more efficiently. can be done

13 is a flowchart illustrating a method of controlling a display device constituting a display system according to an embodiment of the present disclosure.

Referring to FIG. 13 , first, the display device may be connected to an external device ( S1101 ). Specifically, it may be connected to an external device in a wired or wireless manner using a connection port provided in the display device.

Then, the display device may receive the first image from the external device or the second image from the other display device according to the determined image source ( S1102 ). In this case, the display apparatus may form a closed loop with a plurality of other display apparatuses, and the plurality of other display apparatuses may be respectively connected to a plurality of external apparatuses.

Specifically, if the determined image source is an external device connected to the display device, an image may be received from the external device, and for convenience of description, the image received from the external device will be described as a first image. Meanwhile, if the determined image source is an external device connected to another display device, an image may be received from the other display device. In this case, the image received from the other display device is provided from an external device connected to the other display device, and for convenience of description, the image received from the other display device is described as the second image. In this case, the user may select an image source for an image to be displayed on the display from a list of a plurality of image sources, or an external device used by the user may be determined as the image source for the image to be displayed on the display.

Next, when the determined image source is an external device connected to the display device, the display device may transmit the received first image to another display device ( S1103 ). Specifically, when an external device connected to the display device is determined as the image source, the display device transmits the second image so that the display device is a host device, which is the starting point of data transmission, so that it can be sequentially transmitted to a plurality of other display devices. It can be transmitted to another display device that is different from other display devices.

Meanwhile, although not shown, if the determined image source is an external device connected to another display device, the display device may transmit the received second image to the other display device according to the arrangement order of the display devices among the plurality of display devices. Specifically, if the determined image source is an external device connected to another display device and the order of the display device is not arranged last in which the second image is transmitted, the received second image may be transmitted to another display device, and If the order of the devices is that the second image is delivered last, the received second image may not be transmitted to another display device.

Then, the display device may display the received first image or the second image (S1104). Specifically, the display device may display the first image or the second image according to the determined image source. For example, if the determined image source is an external device connected to the display device, a first image received from the external device is displayed, and if the determined image source is an external device connected to another display device, the second image received from the other display device is displayed. can be displayed

As such, the display device constituting the display system according to the present invention can receive and display an image from an external device connected to the display device or an external device connected to another display device, even if the connection of a plurality of display devices constituting the display system is not reset. can

14 is a flowchart illustrating a method of controlling a display device constituting a display system according to an embodiment of the present disclosure.

Referring to FIG. 14 , a display system according to an embodiment of the present disclosure may include a first display apparatus 100-1, a second display apparatus 100-2, and a third display apparatus 100-3. . This is only for convenience of description, and there may be two or four or more display devices constituting the display system. In the display system according to an embodiment of the present disclosure, a plurality of display apparatuses are connected in a closed loop form, but hereinafter, for convenience of description, it is assumed that the first display apparatus 100-1 is a starting point of data transfer, and a user will be described as controlling the display system according to an embodiment of the present disclosure using the second display apparatus 100 - 2 .

First, the first display apparatus 100-1 may transmit information on the connected first external device to the second display apparatus 100-2 (S801). Then, the second display apparatus 100 - 2 connected to the second external apparatus may transmit the received information of the first external apparatus and information of the connected second external apparatus to the third display apparatus 100 - 3 ( S802). Then, the third display apparatus 100 - 3 connected to the third external apparatus transmits the received information of the first and second external apparatuses and the information of the connected third external apparatus to the first display apparatus 100 - 3 . It can be (S803). Thereafter, the first display apparatus 100 - 1 may transmit the received information of the first to third external apparatuses to the second display apparatus 100 - 2 . As described above, information on the first to third external devices connected to the first, second, and third display devices 100-1 to 100-3, respectively, is transmitted to the first, second, and third display devices 100-1 to 100-3. -3), the information of the connected external devices is displayed while circulating the first, second, and third display devices 100-1 to 100-3 that are transmitted in order and form a closed loop. can be shared with each other.

Then, when the user controls the display system using the second display apparatus 100 - 2 and the second display apparatus 100 - 2 receives all information of the first to third external apparatuses, the user An external device providing an image may be determined ( S805 ). In this case, the external device providing the image may be an image source for the image to be displayed on the display device, and displays a list of the received first to third external device information on the second display device 100-2 to display the user You can select an image source from . Accordingly, the second display apparatus 100 - 2 may determine the image source selected by the user as the image source for the image to be displayed on the display apparatus.

Meanwhile, in the above description, the description has been limited to that the user controls the display system using the second display apparatus 100 - 2 , but if the user uses the third display apparatus 100 - 3 , the second display apparatus 100 The step of -2) transmitting information of the first to third external devices to the third display device 100-3 may be further included.

Next, the second display apparatus 100 - 2 may transmit the determined external apparatus information to the third display apparatus 100 - 3 ( S806 ). For example, the determined image source may be a third external device connected to the third display device 100 - 3 selected by the user.

As the third display apparatus 100 - 3 receives information on the image source determined as the third external apparatus, it may receive an image from the third external apparatus ( S807 ). In this case, the data received by the third display apparatus 100 - 3 from the third external apparatus may be an image to be displayed. Meanwhile, in the above description, the third external device is limited to determining the image source as the image source, but if the first or second external device is determined as the image source, the third display device 100 - 3 is the external device determined as the image source. Among the steps of transmitting device information to the first display device 100-1 and sequentially transmitting information of the external device determined from the first display device 100-1 to the second display device 100-2 It may further include at least one.

Next, the third display apparatus 100 - 3 may transmit the received data to the other display apparatus so that the image is also displayed on the other display apparatus. Specifically, the third display apparatus 100 - 3 may transmit the received data to the first display apparatus 100 - 1 ( S808 ). Then, the first display apparatus 100 - 1 may sequentially transmit the received data to the second display apparatus 100 - 2 ( S809 ). As such, since data is transmitted in a predetermined order between the plurality of display devices forming the closed loop, each of the plurality of displays may share an image to be displayed.

Next, the first to third display apparatuses 100-1 to 100-3 may display the received images, respectively (S810a, S810b, and S810c). Meanwhile, in the above description, the plurality of display devices are limited to displaying the same image, but in actual implementation, the shared data is the same, but only a preset area corresponding to a preset position of each display device among the images is displayed. It may also be implemented in the form of displaying the image itself obtained by synthesizing images provided from each external device or a region selected from the synthesizing image.

As described above, according to various embodiments of the present disclosure, it is possible to change an external device corresponding to an image source providing an image without resetting the connection of a plurality of display devices. As described above, since the display device can also use an external device connected to another display device as an image source, the display device can receive images from more external devices than the number of connected ports provided.

The method for displaying contents of a display device constituting a display system including a plurality of display devices according to the above-described various embodiments may be stored in a non-transitory readable medium. Such a non-transitory readable medium may be mounted on various devices and used.

The non-transitory readable medium refers to a medium that stores data semi-permanently, rather than a medium that stores data for a short moment, such as a register, cache, memory, and the like, and can be read by a device. Specifically, programs for performing the above-described various methods may be provided by being stored in a non-transitory readable medium such as a CD, DVD, hard disk, Blu-ray disk, USB, memory card, ROM, and the like.

Accordingly, a display system composed of display devices capable of simultaneously performing the roles of a host device and a slave device by installing the above-described program in an existing display device can be implemented.

In addition, although preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above, and the technical field to which the present invention pertains without departing from the gist of the present invention as claimed in the claims In addition, various modifications are possible by those of ordinary skill in the art, and these modifications should not be individually understood from the technical spirit or prospect of the present invention.

1000: display system 100: display device
110: communication unit 120: display
130: input unit 140: storage unit
150: processor 200: external device
210: communication unit 220: storage unit
230: processor

Claims (20)

In the display device,
display;
a communication unit configured to communicate with the first external device, the first peripheral device, and the second peripheral device;
Receives a first image and information on a first external device from a first external device through the communication unit, receives a second image and information on a second external device provided from a second external device, from a first peripheral device, and generating an image source list based on the information of the first external device and the information of the second external device, and controlling the display to display the image source list;
When a control command for selecting the first external device displayed in the image source list as an image source is input, the first image is transmitted to the second peripheral device through the communication unit, and the display is configured to display the first image. to control,
When a control command for selecting the second external device displayed on the image source list as an image source is input, the second image is transmitted to the second peripheral device through the communication unit, and the display is configured to display the second image. A display device comprising a; processor to control the.
delete delete According to claim 1,
The processor is
A display controlling the display to display a preset area corresponding to the arrangement position among the received first image or the second image based on the arrangement positions of the display device, the first peripheral device, and the second peripheral device Device. According to claim 1,
The processor is
A display apparatus for generating a synthesized image by synthesizing the first image and the second image, and transmitting the synthesized image to the second peripheral device through the communication unit.
6. The method of claim 5,
Further comprising; an input unit for receiving a control command for selecting a partial region to be displayed on the display device among the composite image;
The processor is
A display apparatus for controlling the display to display only a partial region corresponding to the control command among the synthesized image. According to claim 1,
The communication unit,
Receive a control command for the display device from the first peripheral device,
The processor is
A display device that performs an operation corresponding to the received control command. According to claim 1,
The communication unit,
receiving a control command for the second peripheral device from the first peripheral device;
The processor is
A display device configured to control the communication unit to transmit the received control command for the second peripheral device to the second peripheral device. A method for controlling a display device, comprising:
connecting the first peripheral device and the second peripheral device;
connecting with an external device;
receiving a first image and information on the first external device from the first external device, and receiving a second image and information on the second external device provided from the second external device from the first peripheral device;
generating an image source list based on the information of the first external device and the information of the second external device, and displaying the image source list; and
When a control command for selecting the first external device displayed on the image source list as an image source is input, the first image is transmitted to the second peripheral device, the first image is displayed, and the image source list is added to the image source list. and transmitting the second image to the second peripheral device and displaying the second image when a control command for selecting the displayed second external device as an image source is input.
10. The method of claim 9,
receiving information on the first external device from the first external device;
receiving information on the second external device from the first peripheral device;
generating an image source list based on the received information on the first external device and information on the second external device; and
Displaying the generated image source list; Control method of the display device further comprising a.
delete ◈Claim 12 was abandoned when paying the registration fee.◈ 10. The method of claim 9,
The displaying step is
A method of controlling a display apparatus for displaying a predetermined area corresponding to the arrangement position among the received first image or the second image based on the arrangement positions of the display apparatus, the first peripheral apparatus, and the second peripheral apparatus. ◈Claim 13 was abandoned when paying the registration fee.◈ 10. The method of claim 9,
generating a synthesized image by synthesizing the first image and the second image; and
and transmitting the synthesized image to the second peripheral device. ◈Claim 14 was abandoned at the time of payment of the registration fee.◈ 14. The method of claim 13,
receiving a control command for selecting a partial region to be displayed on the display device from among the composite image;
The displaying step is
A method of controlling a display apparatus for displaying only a partial region corresponding to the control command among the synthesized image. ◈Claim 15 was abandoned when paying the registration fee.◈ 10. The method of claim 9,
receiving, from the first peripheral device, a control command for the display device; and
and performing an operation corresponding to the received control command. ◈Claim 16 was abandoned when paying the registration fee.◈ 10. The method of claim 9,
receiving, from the first peripheral device, a control command for the second peripheral device; and
and transmitting the received control command for the second peripheral device to the second peripheral device. In the display system,
a plurality of external devices for storing content; and
Including; a plurality of display devices;
A first display device that directly receives a first image corresponding to content stored in a first external device among the plurality of display devices and information on the first external device,
receiving, from a second display device, a second image corresponding to content stored in a second external device among the plurality of external devices and information on a second external device;
generating an image source list based on the information of the first external device and the information of the second external device, and displaying the image source list;
When a control command for selecting the first external device displayed on the image source list as an image source is input, the first image is transmitted to a third display device, and the first image is displayed;
When a control command for selecting the second external device displayed in the image source list as an image source is input, the display system transmits the second image to the third display device and displays the second image.
18. The method of claim 17,
A display system in which each of the plurality of display devices is connected to each of two other adjacent display devices by a wired cable. ◈Claim 19 was abandoned at the time of payment of the registration fee.◈ 18. The method of claim 17,
The first display device,
Receives information on the first external device from the external device, receives information on the second external device from the second display device, and receives information on the first external device and information on the second external device. A display system for generating an image source list based on the image source list and displaying the generated image source list.
◈Claim 20 was abandoned when paying the registration fee.◈ 18. The method of claim 17,
The first display device,
A display system for generating a synthesized image by synthesizing the first image and the second image, and transmitting the synthesized image to the second display device.

Images