Patent Description:
Recently, with the development of electronic technology, various electronic devices meeting consumer needs have been developed. In particular, a large display device connecting a plurality of display modules has been developed.

Such large display devices provide an image by receiving an image signal from an external electronic device via an interface of a display module arranged at one corner, and sequentially transmitting the received image signal to another adjacent display module.

However, when a large display device is connected to an external electronic device via one interface, the external electronic device needs to have an interface with a channel bandwidth of a sufficient size, in order to transmit a high-definition image, such as a <NUM> image or an <NUM> image.

However, the interface of an external electronic device, such as a conventional set-top box for transmitting an image to a large display device, has a problem in that the interface does not have a channel bandwidth of a sufficient size capable of transmitting an image signal with high definition. <CIT> discloses a splicing display system and a display method thereof. <CIT> discloses a modular large-screen emissive display such as an organic light-emitting diode (OLED) display.

The disclosure is to enable a large display apparatus to display a high-definition image even through an electronic apparatus having a small channel bandwidth.

The invention is defined by the set of appended claims.

According to various embodiments, a high-definition image may be provided even through an electronic apparatus having a low specification interface.

In particular, an up-scaling technique for improving an image of at a low resolution to a high resolution is combined with an electronic apparatus, a user may view a low-resolution image as a high-resolution image through a large-sized display apparatus.

General terms that are currently widely used were selected as terms used in embodiments of the disclosure in consideration of functions in the disclosure, but may be changed depending on the intention of those skilled in the art or a judicial precedent, the emergence of a new technique, and the like. In addition, in a specific case, terms arbitrarily chosen by an applicant may exist. In this case, the meaning of such terms will be mentioned in detail in a corresponding description portion of the disclosure. Therefore, the terms used in embodiments of the disclosure should be defined on the basis of the meaning of the terms and the contents through out the disclosure rather than simple names of the terms.

When it is decided that a detailed description for the known art related to the disclosure may unnecessarily obscure the gist of the disclosure, the detailed description will be omitted.

Embodiments of the disclosure will be described in detail with reference to the accompanying drawings, but the disclosure is not limited to embodiments described herein.

Hereinafter, embodiments will be described in detail with reference to the drawings.

Embodiments relate to enabling a large display apparatus to display a high-definition image even through an electronic apparatus having a small channel bandwidth.

<FIG> are views illustrating a cabinet according to an embodiment.

Referring to <FIG>, a cabinet <NUM> according to an embodiment may include a plurality of display modules <NUM>-<NUM>, <NUM>-<NUM>, and <NUM>-<NUM>. That is, the cabinet <NUM> may be implemented as a form to physically connect the plurality of display modules <NUM>-<NUM>, <NUM>-<NUM>, and <NUM>-<NUM>.

Here, each of the plurality of display modules <NUM>-<NUM>, <NUM>-<NUM>, and <NUM>-<NUM> may be implemented as a light emitting diode (LED) display module including LEDs.

Specifically, referring to <FIG>, each of the plurality of display modules <NUM>-<NUM>, <NUM>-<NUM>, and <NUM>-<NUM> may be implemented as an LED display module that includes a plurality of LEDs <NUM> that implement red LED, green LED, and blue LED, which are sub-pixels, as one pixel.

Here, the plurality of pixels may be arranged in a matrix form (for example, M x N, where M and N are natural numbers). Specifically, the matrix may be in the same arrangement (e.g., M = N, where M and N are natural numbers, <NUM> x <NUM> format, <NUM> x <NUM> format, etc.), or may be another arrangement (e.g., M <IMG> here M and N are natural numbers).

According to an embodiment, the LED of the LED display module may be implemented as a micro LED. Here, the micro LED may be an LED having a size about <NUM> to <NUM> micrometers, and may be a superminiature light emitting element that emits light by itself without a color filter.

However, the LED display module is merely an example, and the display module may be implemented as an organic LED (OLED), an active matrix OLED (AMOLED), a plasma display panel (PDP), or the like. Hereinafter, for convenience of description, it is assumed that the display module according to an embodiment is the LED display module.

Referring back to <FIG>, the cabinet <NUM> according to an embodiment may be implemented in a form in which the plurality of display modules <NUM>-<NUM>, <NUM>-<NUM>, and <NUM>-<NUM> are combined in a 1x3 format. That is, a plurality of display modules included in one cabinet <NUM> may be arranged in a vertical direction.

The LED display module in a 1x3 format is merely an example, and the arrangement format and the number of the LED display module may change in a diverse manner.

The cabinet <NUM> may include a base plate capable of mounting a plurality of display modules <NUM>-<NUM>, <NUM>-<NUM>, and <NUM>-<NUM>, respectively. Here, the base plate may be implemented in a manner that each display module may be mounted on the front surface of the base plate. Accordingly, the cabinet <NUM> according to an embodiment may be implemented to be bezel-less, and a modular display apparatus <NUM>' in which a plurality of cabinets are combined may display a seamless image that has no disconnection between cabinets when displaying an image.

The cabinet <NUM> according to an embodiment may include a plurality of couplers <NUM>-<NUM> and <NUM>-<NUM> for coupling the cabinet <NUM> with one or more other cabinets. Accordingly, the cabinet <NUM> according to an embodiment may be implemented as a modular display apparatus <NUM>' through coupling with one or more cabinets.

For example, referring to <FIG>, the cabinet <NUM> according to an embodiment may be coupled to a plurality of other cabinets <NUM>-<NUM>, <NUM>-<NUM>, and <NUM>-<NUM> in a 4x1 format, and the modular display apparatus <NUM>' such as a video wall may be implemented. Meanwhile, the modular display apparatus in a 4x1 format is only an embodiment, and the arrangement and the number of the modular display apparatus may be changed in a diverse manner.

<FIG> is a block diagram illustrating an electronic apparatus according to an embodiment.

Referring to <FIG>, an electronic apparatus <NUM> according to an embodiment includes an interface <NUM> and a processor <NUM>.

The interface <NUM> may be connected to the modular display apparatus <NUM>'. Here, the modular display apparatus <NUM>' may be a display apparatus that physically connects the plurality of cabinets <NUM>, <NUM>-<NUM>, <NUM>-<NUM>, and <NUM>-<NUM>.

The interface <NUM> may be connected to the modular display apparatus <NUM>' through a port. To be specific, the interface <NUM> may be connected to the modular display apparatus <NUM>' through a cable connected to the port. Here, the cable may be a high definition multimedia interface (HDMI) cable.

Meanwhile, the cable above is merely an example, and may be a digital visual interface (DVI) cable and a low voltage differential signals (LVDS) cable. In addition, the cable may be an optical cable.

In addition, the interface <NUM> may be connected to the modular display apparatus <NUM>' via wireless communication. In this case, the interface <NUM> may include a Wi-Fi chip, a Bluetooth chip, a wireless communication chip, or the like.

The interface <NUM> may be connected to the modular display apparatus <NUM>' through each of a plurality of ports.

For example, as shown in <FIG>, when each of the cabinets <NUM>, <NUM>-<NUM>, <NUM>-<NUM>, and <NUM>-<NUM> in which the display modules are arranged in a 1x3 format is coupled in a 4x1 format, the interface <NUM> may be connected to each cabinet through each of the plurality of ports. For this purpose, the interface <NUM> may include at least four ports that may be connected to each of the plurality of cabinets <NUM>, <NUM>-<NUM>, <NUM>-<NUM>, and <NUM>-<NUM>.

That is, the interface <NUM> may include a first port connected to the first cabinet <NUM>, a second port connected to a second cabinet <NUM>-<NUM>, a third port connected to a third cabinet <NUM>-<NUM>, and a fourth port connected to a fourth cabinet <NUM>-<NUM>.

The number of ports is merely an example, and the number of ports may increase or decrease according to embodiments.

According to an embodiment in which each of the cabinets <NUM>, <NUM>-<NUM>, <NUM>-<NUM>, and <NUM>-<NUM> and the display modules are arranged in a 1x3 format, each of the plurality of ports are connected to each of the each of the cabinets <NUM>, <NUM>-<NUM>, <NUM>-<NUM>, and <NUM>-<NUM>, but each of the plurality of ports may be connected to each of a plurality of display module groups included in one cabinet.

For example, when the plurality of display modules included in the cabinet are arranged in a 4x4 format, four display module groups that are divided in a vertical direction may be connected to each of the plurality of ports of the electronic apparatus <NUM>. This will be described in greater detail later.

The processor <NUM> controls overall operations of the electronic apparatus <NUM>. For this purpose, the processor <NUM> may include one or more of a central processing unit (CPU), an application processor (AP), or a communication processor (CP).

The processor <NUM> may scale an image signal to a predetermined resolution. For example, the processor <NUM> may upscale an image signal received from an external device or an image stored in a storage to a predetermined resolution.

Here, the external device may be a server, a set-top box, a USB storage, a PC, a smart phone, or the like. The predetermined resolution may be <NUM> resolution, which may be provided in a display apparatus of which width to height resolution is <NUM>,<NUM> x <NUM>,<NUM>, and the number of pixels is <NUM>,<NUM>,<NUM>, or <NUM> resolution which may be provided in a display apparatus of which width to height resolution is <NUM>,<NUM> x <NUM>,<NUM>, and the number of pixels <NUM>,<NUM>,<NUM>.

According to an embodiment, when the image signal of <NUM> resolution is received from an external device, the processor <NUM> may upscale the resolution of the received image signal to <NUM>.

This is merely an example, and the predetermined resolution may change in a diverse manner according to a user input.

The processor <NUM> may transmit the upscaled image signal to the modular display apparatus <NUM>' via the interface <NUM>.

Meanwhile, as described above, the modular display apparatus <NUM>' may be implemented as the modular display apparatus <NUM>' such as a video wall in which the plurality of cabinets <NUM>, <NUM>-<NUM>, <NUM>-<NUM>, and <NUM>-<NUM> are coupled. For example, the modular display apparatus <NUM>' has a structure in which the cabinets having a width to height resolution of <NUM>,<NUM> x <NUM>,<NUM> are arranged in a <NUM> x <NUM> format, and may be implemented as a display apparatus capable of providing an image having width to height resolution of <NUM>,<NUM> x <NUM>,<NUM>.

The processor <NUM> may divide a plurality of display modules included in the modular display apparatus <NUM>' into a plurality of groups in a vertical direction.

Specifically, the processor <NUM> may divide a plurality of display modules into a plurality of groups in a vertical direction, based on the number of ports connected to the modular display apparatus <NUM>'.

For example, as illustrated in <FIG>, when the first cabinet <NUM> is connected through the first port, the second cabinet <NUM>-<NUM> is connected through the second port, the third cabinet <NUM>-<NUM> is connected through the third port, and the fourth cabinet <NUM>-<NUM> is connected through the fourth port, the processor <NUM> may divide the plurality of display modules into four groups.

Here, the first group may be a plurality of display modules included in the first cabinet <NUM>, the second group may be a plurality of display modules included in the second cabinet <NUM>-<NUM>, the third group may be a display module included in the third cabinet <NUM>-<NUM>, the fourth group may be a plurality of display modules included in the fourth cabinet <NUM>-<NUM>.

The processor <NUM> may decompose the upscaled image signal into image signals corresponding to each of the plurality of groups. Here, the decomposed image signal refers to a signal that is obtained by decomposing an image frame of the upscaled image signal based on the position and the number of each group.

For example, as illustrated in <FIG>, when four groups are connected from the left to the right, the processor <NUM> may divide the image frame of the upscaled image signal into four parts from the left to the right.

At this time, the processor <NUM> may divide the image frame of the upscaled image signal based on sizes of each of the plurality of groups.

For example, when the size of each group is <NUM> in width and <NUM> in height, the processor <NUM> may divide the image frame of the upscaled image signal into four image frames of which width to height ratio is <NUM>:<NUM>.

Then, the processor <NUM> may transmit the decomposed image signals (that is, signals corresponding to the divided image frames) through each of the plurality of ports to each of the plurality of groups. In the above-described embodiment, the processor <NUM> may transmit to the first group the decomposed image signals corresponding to the first group through the first port, transmit to the second group the decomposed image signals corresponding to the second group through the second port, transmit to the third group the decomposed image signals corresponding to the third group through the third port, and transmit to the fourth group the decomposed image signals corresponding to the fourth group through the fourth port.

The processor <NUM> may encode the decomposed image signals corresponding to each of a plurality of groups in a unit of rows, and transmit the image signals encoded in a unit of rows to each of the plurality of groups.

For example, as illustrated in <FIG>, the processor <NUM> may transmit the image signal which is encoded in a unit of rows to each of a plurality of groups.

The signal processing process of the modular display apparatus <NUM> will be described in greater detail with reference to <FIG>.

As such, by decomposing and transmitting the upscaled image signal, the electronic apparatus according to an embodiment may provide a high-resolution image to the modular display apparatus even through an interface having a small channel bandwidth.

The processor <NUM> may perform vertical synchronization (V-sync) to the decomposed image signal above, and transmit the synchronized image signal to each of the plurality of groups.

Specifically, when each of the plurality of groups displays an image corresponding to the received image signals, the processor <NUM> may perform the V-sync for each of the decomposed image signals so that the same image frame may be displayed at the same timing, and transmit the V-sync image signal to each of the plurality of groups.

<FIG> is a view illustrating a method for image processing of the modular display apparatus according to an embodiment.

Each of the plurality of ports of the electronic apparatus <NUM> may be connected to each of the display modules positioned at an outer side, from among the display modules belonging to each of the plurality of groups.

For example, referring to <FIG>, each of the plurality of ports may be connected to each of the display modules positioned at a lower side, among the display modules belonging to each of the plurality of groups.

Accordingly, the processor <NUM> may transmit, through each of the plurality of ports, the decomposed image signals to each of the display modules located at the lower side among a plurality of display modules belonging to each group.

In this case, each of the display modules positioned at the lower side may transmit the decomposed image signals received from the electronic apparatus <NUM> to the display module located at an upper side.

To be specific, the plurality of display modules included in each group may be connected to each other by a daisy-chain method, and the display modules located at the lower side may transmit the decomposed image signals to the display modules positioned at the upper side.

By this method, when the decomposed image signal is transmitted to the display module which is located at a top side, a timing controller (T-CON) included in the top side of the display module may decode the received image signals, crop an image corresponding to the position, and reproduce the image through the display module.

In the case of the display module located at a lower side of the display module at the top side, if the image signal which is decomposed by the same method is transmitted, the received image signal may be decoded through the T-CON, and the T-CON may crop the image corresponding to the display module and reproduce the image.

The signal processing may be performed simultaneously in each of a plurality of groups. That is, unlike a related-art modular display apparatus that processes image signals from the upper left to the upper right of the modular display apparatus into one line, the modular display apparatus <NUM>' according to an embodiment may receive the decomposed image signals from the electronic apparatus <NUM>, and each of the plurality of groups may decode the received image signals and reproduce the image simultaneously.

According to an embodiment, the plurality of display modules included in the modular display apparatus <NUM>' is divided into a plurality of groups in a vertical direction, and the upscaled image signal is decomposed to the image signal corresponding to each of the plurality of groups.

The processor <NUM> may divide the plurality of display modules included in the modular display apparatus to a plurality of groups in a vertical direction and a horizontal direction, and decompose the upscaled image signal to image signal corresponding to each of the plurality of groups.

Hereinafter, an embodiment will be described with reference to <FIG>, and <FIG>.

<FIG> are views illustrating a connection structure between the electronic apparatus and the modular display apparatus according to an embodiment.

As illustrated in <FIG>, in the case of a modular display apparatus <NUM>", in which each cabinet <NUM>-<NUM>, <NUM>-<NUM>, <NUM>-<NUM>, and <NUM>-<NUM>, where display modules are arranged in a 4x4 format, is coupled in a 2x2 format, the electronic apparatus <NUM> and the modular display apparatus <NUM>" may be connected as illustrated in <FIG>.

Specifically, referring to <FIG>, at a back of the modular display apparatus <NUM>", a plurality of connectors that may be connected to each of the plurality of ports of the electronic apparatus <NUM> may be included. In addition, each connector of the modular display apparatus <NUM>" may be connected to each of the plurality of ports of the electronic apparatus <NUM>.

In this case, the processor <NUM> may divide a plurality of display modules into a plurality of groups in a vertical direction and a horizontal direction, based on the number of ports connected to the modular display apparatus <NUM>", and each position of the ports connected to the modular display apparatus <NUM>".

For example, as illustrated in <FIG>, when the first cabinet <NUM>-<NUM> and the second cabinet <NUM>-<NUM> are connected to the ports provided in the first area of the electronic apparatus <NUM>, the processor <NUM> may divide the plurality of display modules included in the first cabinet <NUM>-<NUM> and the second cabinet <NUM>-<NUM> to a group located at an upper side, based on division of the modular display apparatus <NUM>" in the horizontal direction.

As illustrated in <FIG>, when the third cabinet <NUM>-<NUM> and the fourth cabinet <NUM>-<NUM> are connected to the ports provided in the second area of the electronic apparatus <NUM>, the processor <NUM> may divide the plurality of display modules included in the third and fourth cabinets <NUM>-<NUM> and <NUM>-<NUM> to be a group located in the lower side when the modular display apparatus <NUM>" is divided in a horizontal direction.

The processor <NUM> may divide each group that is divided in a horizontal direction into a plurality of sub-groups in a vertical direction, based on the number of the ports of each area connected to the modular display apparatus <NUM>".

Specifically, the processor <NUM> may divide the groups located in an upper side to a plurality of sub-groups in a vertical direction, based on the number of the ports in the first area connected to the modular display apparatus <NUM>".

As such, the processor <NUM> may divide the groups located in a lower side into a plurality of sub-groups in a vertical direction, based on the number of the ports in the second area connected to the modular display apparatus <NUM>".

For example, when the modular display apparatus <NUM>" and the electronic apparatus <NUM> are connected as shown in <FIG>, the processor <NUM> may divide the groups connected to the first port to the eighth port in the first area into first to eighth sub-groups that are located in an upper side in a horizontal direction and located from left to right side in a vertical direction, and divide the groups connected to the ninth to 16th ports to the ninth to 16th sub-groups located in a lower side in a horizontal direction and located from left to right in a vertical direction.

In the embodiment above, the processor <NUM> may divide the image frame of the upscaled image signal into two from an upper side to a lower side, and into <NUM> image frames by dividing the image frame into eight from the left to right.

Then, the processor <NUM> may transmit the decomposed image signal to each of the plurality of sub-groups through each of the plurality of the ports.

Specifically, the processor <NUM> may encode the decomposed image signals corresponding to each of the plurality of sub-groups in a unit of rows, and transmit the image signals that are encoded in a unit of rows to each of the sub-groups.

For example, as illustrated in <FIG>, the processor <NUM> may transmit the image signals encoded in a unit of rows to each of the plurality of sub-groups.

As such, by dividing the modular display apparatus <NUM>" into a plurality of sub-groups in a vertical direction and a horizontal direction, the electronic apparatus <NUM> according to an embodiment may provide a high-resolution image to the modular display apparatus even through an interface having a small channel bandwidth.

According to an embodiment, a plurality of display modules are divided into a plurality of groups in a vertical direction and a horizontal direction, based on the number and position of the ports connected to the modular display apparatus, but the method of dividing the display modules into a plurality of groups is not limited thereto.

In the above description, the plurality of display modules are divided into a plurality of groups in the horizontal direction, and then the groups divided in the horizontal direction are divided into a plurality of sub-groups in the vertical direction, but the order is not necessarily limited thereto. That is, in the disclosure, a plurality of display modules may be divided into a plurality of groups in the vertical direction, and the groups divided in the vertical direction may be divided into a plurality of sub-groups in the horizontal direction.

<FIG> and <FIG> are views illustrating an embodiment of a resolution of an image so that the electronic apparatus corresponds to the screen size of the modular display apparatus according to an embodiment.

As described above, the modular display apparatus according to an embodiment may upscale the image signal and provide the upscaled image signal through each of the plurality of groups.

According to an embodiment, when the image signal of <NUM> resolution is received from an external device, the processor <NUM> may upscale the resolution of the received image signal to <NUM>, and provide the upscaled image signal through each of the plurality of groups.

According to an embodiment, the modular display apparatus is implemented as a display apparatus of which width to height resolution is <NUM> x <NUM> and the number of pixels is <NUM>,<NUM>,<NUM>, and the resolution of the upscaled image signal corresponds to the resolution of the modular display apparatus.

However, in some cases, the resolution of the upscaled image signal and the resolution of the modular display apparatus may not correspond to each other.

For example, as illustrated in <FIG>, even though the modular display apparatus <NUM>" has the <NUM> resolution, when only a part of the plurality of display groups included in the modular display apparatus <NUM>" is connected to the electronic apparatus <NUM>, the resolution of the upscaled image and the resolution of the modular display apparatus may not be the same. Alternatively, when the modular display apparatus is implemented as a display apparatus which may not support <NUM> resolution, the resolution of the upscaled image and the resolution of the modular display apparatus may not be the same.

In this case, the processor <NUM> may identify the resolution of the image which may be provided by the plurality of sub-groups connected to each of the plurality of the ports, and rescale the image scale which is scaled to the predetermined resolution to correspond to the identified resolution.

Here, the processor <NUM> may identify the resolution of the image which may be provided by the plurality of sub-groups connected to each of the plurality of ports, based on the number of pixels included in the plurality of sub-groups connected to each of the plurality of ports.

For example, if it is identified that the resolution of the scaled image is <NUM> and the resolution of the image that may be provided by the plurality of sub-groups connected to each of the plurality of ports is <NUM>, the processor <NUM> may rescale the scaled image signal to correspond to <NUM> resolution.

In addition, the processor <NUM> may decompose the rescaled image signal to the image signal corresponding to each of the plurality of sub-groups, and transmit the decomposed image signal to each of the plurality of sub-groups through the ports connected to each of the plurality of sub-groups.

Accordingly, as illustrated in <FIG>, the modular display apparatus including display modules <NUM> may display an image <NUM> which corresponds to a screen of the modular display apparatus. The plurality of groups divided in the vertical direction may be divided further into a plurality of sub-groups in a horizontal direction.

A black image may be provided to a group which is not connected to the electronic apparatus <NUM>, among a plurality of display groups.

<FIG> is a detailed block diagram illustrating the electronic apparatus according to an embodiment.

Referring to <FIG>, the electronic apparatus <NUM> according to an embodiment may include the interface <NUM>, the processor <NUM>, a first sub-processor <NUM>, and a second sub-processor <NUM>.

The processor <NUM> may divide a plurality of display modules included in the modular display apparatus into a plurality of groups in a horizontal direction.

Specifically, the display modules positioned at an upper side in a horizontal direction of the modular display apparatus may be divided into the first group, and the display modules positioned at a lower side may be divided into the second group.

The processor <NUM> may divide the up-scaled image signal into image signals corresponding to the first and second groups, transmit the image signals corresponding to the first group to the first sub-processor <NUM>, and transmit the image signal corresponding to the second group to the second sub-processor <NUM>.

The first sub-processor <NUM> may divide the first group into a plurality of sub-groups in the vertical direction.

To be specific, the first sub-processor <NUM> may divide the first group into a plurality of sub-groups in the vertical direction, based on the number of the ports provided in the first area connected to the modular display apparatus.

The first sub-processor <NUM> may decompose the image signals corresponding to the first group into the image signals corresponding to the plurality of sub-groups and transmit the decomposed image signals to each of the plurality of sub-groups through the ports connected to each of the plurality of sub-groups.

The second sub-processor may divide the second group into a plurality of sub-groups in the vertical direction.

Specifically, the second sub-processor <NUM> may divide the second group into a plurality of sub-groups in the vertical direction, based on the number of ports provided in the second area connected to the modular display apparatus.

The second sub-processor <NUM> may decompose the image signal corresponding to the second group to the image signals corresponding to the plurality of sub-groups, and transmit the decomposed image signals to each of the plurality of sub-groups through the ports connected to each of the plurality of sub-groups.

<FIG> is a flowchart illustrating an operation of the electronic apparatus according to an embodiment.

The electronic apparatus may upscale the image signal to a predetermined resolution in step S1010. To be specific, the electronic apparatus may upscale the image signal received from an external device or an image stored in the storage to a predetermined resolution.

Here, the predetermined resolution may be <NUM> resolution or <NUM> resolution, but this is merely an example, and the predetermined resolution may change in a diverse manner according to a user input.

The electronic apparatus may divide a plurality of display modules included in the modular display apparatus into a plurality of groups in the vertical direction in step S1020. Specifically, the electronic apparatus may divide a plurality of display modules into a plurality of groups in the vertical direction, based on the number of ports connected to the modular display apparatus.

The electronic apparatus may decompose the upscaled image signal into image signals corresponding to the plurality of groups in step S1030. Here, the decomposed image signal refers to a signal obtained by decomposing the image frame of the upscaled image signal based on the position and the number of each group.

Thereafter, the electronic apparatus may transmit the image signal to each of the plurality of groups in step S1040. The electronic apparatus may encode the decomposed image signals corresponding to each of the plurality of groups in a unit of rows, and transmit the image signals encoded in a unit of rows to each of the plurality of groups.

A non-transitory computer readable medium which stores a program for sequentially executing a method for controlling an electronic apparatus according to an embodiment may be provided.

Claim 1:
An electronic apparatus (<NUM>) comprising:
an interface (<NUM>) connected to a modular display apparatus (<NUM>', <NUM>"), the interface (<NUM>) comprising a plurality of ports that are connected to the modular display apparatus (<NUM>', <NUM>"); and
a processor (<NUM>) configured to:
scale an image signal received from an external device to a predetermined resolution,
based on a number of the plurality of ports that are connected to the modular display apparatus (<NUM>', <NUM>"), divide each display module among a plurality of display modules included in the modular display apparatus (<NUM>', <NUM>") into a plurality of groups in a first direction,
wherein the first direction is a vertical direction,
wherein the plurality of groups each include a plurality of the display modules,
decompose the scaled image signal to image signals corresponding to each of the plurality of groups, and
transmit the decomposed image signals to each of the plurality of groups via the interface (<NUM>) connected to each of the plurality of groups through each of the plurality of ports,
wherein each of the plurality of the ports is connected to each of the display modules positioned at a lower side, among the display modules belonging to each of the plurality of groups,
wherein display modules included in each of the plurality of groups are configured to connect to each other so that a display module positioned at a lower side relatively in each of the plurality of groups transmits the decomposed image signals to a display module positioned at an upper side relatively in each of the plurality of groups, and
wherein each of the display modules included in each of the plurality of groups is configured to receive a decomposed image, decode the decomposed image, crop the decoded image corresponding to the position of the display module and reproduce the obtained image.