KR102292979B1 - Image display device - Google Patents

Abstract

The present invention provides a display unit installed in a main body, a wireless communication unit configured to receive routing table information related to a location in which the main body is disposed by performing first wireless communication with a server, and at least one external device using the received routing table. and a control unit for controlling the wireless communication unit to perform second wireless communication with the image display device, wherein the control unit includes a second device selected by a user input from the at least one external image display device through the second wireless communication. 1 It provides an image display device, characterized in that for controlling the wireless communication unit so as to receive data.

Description

Image display device {IMAGE DISPLAY DEVICE}

The present invention relates to an image display apparatus that provides a routing function by performing wireless communication with an image display apparatus.

The image display apparatus includes both an apparatus for receiving and outputting a broadcast or recording and reproducing an image and an apparatus for recording and reproducing audio. Such image display devices include, for example, televisions, monitors, projectors, tablets, and the like.

As the functions of the video display device are diversified, it is implemented in the form of a multimedia player equipped with complex functions such as taking pictures or moving pictures, playing games, and receiving broadcasts, in addition to the output of broadcasting and the playback of images. .

In order to support and increase the function of the image display device, various new attempts are being applied in terms of hardware or software. Attempts corresponding to the hardware part include structural changes and improvements to simplify the assembly structure of the image display device.

As an example of the structural change and improvement, various studies and proposals have been made on a wireless communication function performed in an image display device. In particular, recently, research on wireless communication connection between displays has been actively conducted.

It is an object of the present invention to provide an image display device having a wireless communication function that is not limited to an existing network structure.

Another object of the present invention is to provide an image display apparatus that allows a data transmission path to be diversified by performing wireless communication connection between image display apparatuses.

In order to achieve the above object of the present invention, an image display device according to an embodiment of the present invention performs first wireless communication with a display unit installed on a main body and a server, and is related to a location where the main body is disposed. A wireless communication unit for receiving routing table information, and a control unit for controlling the wireless communication unit to perform second wireless communication with at least one external image display device using the received routing table, wherein the control unit includes: and controlling the wireless communication unit to receive the first data selected by a user input from the at least one external image display device through the second wireless communication.

According to an example related to the present invention, the control unit determines whether to store the content with respect to the external image display device performing the second wireless communication, and based on the determination result, performs the second wireless communication and controlling the wireless communication unit to receive the first data from at least some of the performing external image display devices.

According to another example related to the present invention, the control unit divides the first data into a plurality of parts, and uses the second wireless communication to divide each of the plurality of parts into different external image display devices. It is characterized in that to control the wireless communication unit to receive from.

According to another example related to the present invention, the control unit is, by using the information related to the communication state between the wireless communication unit and the at least one external image display device, from each of the at least one external image display device 1 It is characterized in that the data transmission and reception speed is controlled.

According to another example related to the present invention, when the connection of the first wireless communication is released while receiving the second data through the first wireless communication, the control unit performs the second wireless communication. The wireless communication unit determines whether the image display device stores the second data, and receives the second data from at least some of the external image display devices that perform the second wireless communication based on the determination result. characterized in that it controls.

According to another example related to the present invention, when the first data and the second data correspond, the controller increases the communication speed of the second wireless communication.

According to another example related to the present invention, the wireless communication unit receives a request message for third data from a first external image display device performing the second wireless communication, and the control unit, the server and the second 2 It is determined whether the third data is stored with respect to at least one of the second external image display apparatuses performing wireless communication, and based on the determination result, the server and the second external image display for storing the third data and controlling the wireless communication unit to transmit the request message to at least one of the devices.

According to another example related to the present invention, when the server stores the third data, the control unit receives the third data from the server through the first wireless communication, and the received third data to control the wireless communication unit to transmit to the first external image display device.

According to another example related to the present invention, the wireless communication unit receives destination information together with fourth data from the first external image display device performing the second wireless communication, and the control unit, the received destination information and detects a communication path to a second external image display device corresponding to , and controls the wireless communication unit to transmit the received fourth data through the detected communication path.

According to another example related to the present invention, the control unit detects the communication path so as to minimize a communication cost for transmitting the received fourth data to the second external image display device. .

According to another example related to the present invention, the control unit detects the communication path so as to minimize a time required for transferring the received fourth data to the second external image display device. .

According to another example related to the present invention, the image display device further includes an input unit, wherein the control unit responds to a user input applied to the input unit in a state in which the display unit outputs an image related to the routing table information. Based on the selection of any one of the external image display device for performing the second wireless communication, characterized in that the control of the wireless communication unit to transmit the fifth data to the selected external image display device.

According to another example related to the present invention, when it is determined that the connection of the first wireless communication is disconnected before receiving the routing table information, the control unit is configured to be located within a predetermined distance from the image display device. Perform third wireless communication with the image display device, characterized in that the control of the wireless communication unit to transmit a request message for the routing table information to an external image display device that performs the third wireless communication.

In addition, in order to achieve the above object, the present invention provides the steps of performing first wireless communication with a server, receiving routing table information related to a location where the main body is disposed from the server, and using the received routing table information performing second wireless communication with at least one of the external image display devices and receiving first data selected by a user input from the at least one external image display device through the second wireless communication It provides a control method of an image display device, characterized in that.

According to another example related to the present invention, the step of receiving the first data may include determining whether to store the content with respect to the external image display device performing the second wireless communication, and a result of the determination. based on the second wireless communication, it characterized in that it comprises the step of receiving the first data from at least some of the external image display device.

According to another example related to the present invention, the step of receiving the first data includes dividing the first data into a plurality of parts, and using the second wireless communication, each of the plurality of parts , each of which is received from different external image display devices.

According to the present invention having the above configuration, even in the image display device not connected to the server, data can be transmitted from the external image display device, and thus a network expansion effect is derived.

In addition, according to the present invention, since the data communication path of the image display device is extended, the content transmission speed can be improved. In addition, by the expansion of the data communication path as described above, the load on the server that provides the content to the image display device can be reduced.

In addition, according to the present invention, since it is easier to perform synchronization between image display apparatuses located within a predetermined area, user convenience of the image display apparatus is improved.

1A is a block diagram showing an image display device according to the present invention and a remote control device of the image display device;
1B is an external perspective view of an image display device according to an embodiment of the present invention;
1C is a conceptual diagram illustrating an embodiment related to wireless communication performed by an image display device related to the present invention.
2 is a flowchart illustrating a method of controlling an image display device according to the present invention.
3A and 3B are conceptual views illustrating wireless communication performed between an image display device according to the present invention and a plurality of external image display devices;
4 is a conceptual diagram illustrating that the image display device according to the present invention receives data from a plurality of external image display devices.
5A to 5C are conceptual views illustrating that the image display device related to the present invention provides a routing function to an external image display device.

Hereinafter, an image display device related to the present invention will be described in more detail with reference to the drawings.

In the present specification, the same and similar reference numerals are assigned to the same and similar components in different embodiments, and the description is replaced with the first description.

The suffixes "module" and "part" for the components used in the following description are given simply in consideration of the ease of writing the present specification, and do not give a particularly important meaning or role by themselves. Accordingly, the terms “module” and “unit” may be used interchangeably.

Also, as used herein, the singular expression includes the plural expression unless the context clearly dictates otherwise.

The image display apparatus according to the present invention includes both an apparatus for receiving and outputting a broadcast, recording and reproducing an image, and an apparatus for recording and reproducing audio. Hereinafter, as such an example, a television is demonstrated as an example.

1A is a block diagram showing an image display device 100 and a remote control device 200 related to the present invention.

Referring to FIG. 1A , the image display device 100 includes a tuner 110 , a demodulator 120 , an external device interface 130 , a network interface 135 , a storage 140 , and a user input interface unit ( 150 ), a controller 170 , a display 180 , a display deformation driving unit 183 , an audio output unit 185 , a power supply unit 190 , and a 3D viewing device 195 .

The tuner 110 selects an RF broadcast signal corresponding to a channel selected by a user or all pre-stored channels from among radio frequency (RF) broadcast signals received through an antenna. In addition, the selected RF broadcast signal is converted into an intermediate frequency signal or a baseband video or audio signal.

For example, if the selected RF broadcast signal is a digital broadcast signal, it is converted into a digital IF signal (DIF), and if it is an analog broadcast signal, it is converted into an analog baseband image or audio signal (CVBS/SIF). That is, the tuner 110 may process a digital broadcast signal or an analog broadcast signal. An analog baseband video or audio signal (CVBS/SIF) output from the tuner 110 may be directly input to the controller 170 .

Also, the tuner 110 may receive an RF broadcast signal of a single carrier according to an Advanced Television System Committee (ATSC) method or an RF broadcast signal of multiple carriers according to a Digital Video Broadcasting (DVB) method.

Meanwhile, in the present invention, the tuner 110 sequentially selects the RF broadcast signals of all broadcast channels stored through the channel storage function among the RF broadcast signals received through the antenna in the present invention and converts them into an intermediate frequency signal or a baseband image or audio signal. can do.

The demodulator 120 receives the digital IF signal DIF converted by the tuner 110 and performs a demodulation operation.

For example, when the digital IF signal output from the tuner 110 is ATSC, the demodulator 120 performs 8-VSB (8-Vestigal Side Band) demodulation. Also, the demodulator 120 may perform channel decoding. To this end, the demodulator 120 includes a trellis decoder, a de-interleaver, a Reed Solomon decoder, and the like, for trellis decoding, deinterleaving, and Reed Solomon decoder. Decryption can be performed.

For example, when the digital IF signal output from the tuner 110 is a DVB method, the demodulator 120 performs coded orthogonal frequency division modulation (COFDMA) demodulation. Also, the demodulator 120 may perform channel decoding. To this end, the demodulator 120 may include a convolution decoder, a deinterleaver, and a Reed-Soloman decoder to perform convolutional decoding, deinterleaving, and Reed-Soloman decoding.

The demodulator 120 may output a stream signal TS after demodulation and channel decoding are performed. In this case, the stream signal may be a signal obtained by multiplexing an image signal, an audio signal, or a data signal. For example, the stream signal may be an MPEG-2 Transport Stream (TS) in which an MPEG-2 standard video signal, a Dolby AC-3 standard audio signal, etc. are multiplexed. Specifically, the MPEG-2 TS may include a header of 4 bytes and a payload of 184 bytes.

Meanwhile, the above-described demodulator 120 may be separately provided according to the ATSC method and the DVB method. That is, it is possible to be provided with an ATSC demodulator and a DVB demodulator.

The stream signal output from the demodulator 120 may be input to the controller 170 . After performing demultiplexing, image/audio signal processing, and the like, the controller 170 outputs an image to the display 180 , and outputs an audio to the audio output unit 185 .

The external device interface unit 130 may connect an external device and the image display device 100 . To this end, the external device interface unit 130 may include an A/V input/output unit (not shown).

The external device interface unit 130 may be connected to an external device such as a DVD (Digital Versatile Disk), Blu-ray, game device, camera, camcorder, computer (laptop), and the like in a wired/wireless manner. The external device interface unit 130 transmits an image, audio or data signal input from the outside through a connected external device to the controller 170 of the image display device 100 . Also, the image, audio, or data signal processed by the controller 170 may be output to a connected external device. To this end, the external device interface unit 130 may include an A/V input/output unit (not shown) or a wireless communication unit (not shown).

The A/V input/output unit provides a USB terminal, a CVBS (Composite Video Banking Sync) terminal, a component terminal, an S-video terminal (analog), a DVI ( It may include a Digital Visual Interface) terminal, a High Definition Multimedia Interface (HDMI) terminal, an RGB terminal, a D-SUB terminal, and the like.

Also, the external device interface unit 130 may be connected through various set-top boxes and at least one of the aforementioned various terminals to perform input/output operations with the set-top box.

Meanwhile, the external device interface unit 130 may transmit/receive data to and from the 3D viewing device 195 .

The external device interface unit 130 serves as a passage with all external devices connected to the image display device 100 . The external device interface unit 130 receives data from an external device, receives power and transmits it to each component inside the image display device 100 , or transmits data inside the image display device 100 to an external device. do. For example, a wired/wireless headset port, an external charger port, a wired/wireless data port, a memory card port, a port for connecting a device equipped with an identification module (port), an audio I/O (Input/Output) port, a video I/O (Input/Output) port, an earphone port, etc. may be included in the interface unit 160 .

On the other hand, the identification module is a chip storing various information for authenticating the use authority of the image display device 100, a user identification module (UIM), a subscriber identity module (subscriber identity module; SIM), general-purpose user It may include a universal subscriber identity module (USIM) and the like. A device equipped with an identification module (hereinafter, 'identification device') may be manufactured in the form of a smart card. Accordingly, the identification device may be connected to the terminal 100 through the external device interface unit 130 .

In addition, the external device interface unit 130 serves as a passage through which power from the cradle is supplied to the image display device 100 when the image display device 100 is connected to an external cradle, or by a user. Various command signals input from the cradle may be a passage through which the image display device 100 is transmitted. Various command signals or the power input from the cradle may be operated as signals for recognizing that the image display apparatus 100 is correctly mounted on the cradle.

The network interface unit 135 provides an interface for connecting the image display device 100 to a wired/wireless network including an Internet network. The network interface unit 135 may include an Ethernet terminal or the like for connection with a wired network, and for connection with a wireless network, WLAN (Wireless LAN) (Wi-Fi), Wibro (Wireless broadband) ), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) communication standards, etc. may be used.

The network interface unit 135 may receive content or data provided by the Internet, a content provider, or a network operator through a network. That is, contents such as movies, advertisements, games, VODs, and broadcast signals and information related thereto may be received from the contents provider through the network. In addition, it is possible to receive firmware update information and an update file provided by a network operator. It may also transmit data to the Internet or to a content provider or network operator.

In addition, the network interface unit 135 is, for example, connected to an IP (internet protocol) TV, receives the video, audio, or data signal processed in the IPTV set-top box so as to enable two-way communication, and sends it to the control unit 170 . can be transmitted, and the signals processed by the control unit 170 can be transmitted to the IPTV set-top box.

On the other hand, the IPTV described above may mean including ADSL-TV, VDSL-TV, FTTH-TV, etc. depending on the type of transmission network, TV over DSL, Video over DSL, TV overIP (TVIP), Broadband TV (BTV) ) and the like. Also, IPTV may mean including Internet TV capable of Internet access and full-browsing TV.

In addition, the above-described network interface unit 135 may include a wireless communication unit (not shown), and hereinafter, the network interface unit 135 and the wireless communication unit are defined to correspond to each other.

The wireless communication unit may perform short-range wireless communication with other electronic devices. The image display device 100 is connected to other electronic devices and networks according to communication standards such as Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), and ZigBee. can be connected

The storage unit 140 may store a program for each signal processing and control in the control unit 170 , or may store a signal-processed image, audio, or data signal.

Also, the storage unit 140 may perform a function for temporarily storing an image, audio, or data signal input to the external device interface unit 130 . Also, the storage unit 140 may store information about a predetermined broadcast channel through a channel storage function such as a channel map.

The storage unit 140 includes a flash memory type, a hard disk type, a solid state disk type (SSD), a silicon disk drive type (SDD), and a multimedia card micro type. type), card-type memory (such as SD or XD memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable (EEPROM) It may include a storage medium of at least one type of a read-only memory), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, and an optical disk. The image display device 100 may be operated in relation to a web storage that performs a storage function of the storage unit 140 on the Internet.

1A shows an embodiment in which the storage unit 140 is provided separately from the control unit 170, the scope of the present invention is not limited thereto. The storage unit 140 may be included in the control unit 170 .

The user input interface unit 150 transmits a signal input by the user to the control unit 170 or transmits a signal from the control unit 170 to the user.

For example, the user input interface unit 150 performs power on/off, channel selection, and screen setting from the remote control device 200 according to various communication methods such as a radio frequency (RF) communication method and an infrared (IR) communication method. It is possible to receive a user input signal, such as, or transmit a signal from the control unit 170 to the remote control device (200).

Also, for example, the user input interface unit 150 may transmit a user input signal input from a local key (not shown) such as a power key, a channel key, a volume key, and a setting value to the control unit 170 .

Also, for example, the user input interface unit 150 transmits a user input signal input from a sensing unit (not shown) that senses a user's gesture to the control unit 170 or senses a signal from the control unit 170 . It can be transmitted to the unit (not shown). Here, the sensing unit (not shown) may include a touch sensor, a voice sensor, a position sensor, a motion sensor, and the like.

The user input interface unit 150 is for input of image information (or signal), audio information (or signal), data, or information input from a user. For input of image information, the image display device 100 includes One or a plurality of cameras (not shown) may be provided. The camera processes image frames such as still images or moving images obtained by an image sensor in a video call mode or a shooting mode. The processed image frame may be displayed on the display 180 or stored in the storage 140 . On the other hand, a plurality of cameras provided in the image display apparatus 100 may be arranged to form a matrix structure, and through the cameras forming the matrix structure as described above, the image display apparatus 100 has a plurality of images having various angles or focal points. Information may be entered. In addition, the plurality of cameras may be arranged in a stereo structure to acquire a left image and a right image for realizing a stereoscopic image.

A microphone (not shown) processes an external sound signal as electrical voice data. The processed audio data may be utilized in various ways according to a function (or an application program being executed) being performed by the image display device 100 . Meanwhile, various noise removal algorithms for removing noise generated in the process of receiving an external sound signal may be implemented in the microphone.

The user input interface unit 150 is for receiving information from a user. When information is input through the user input interface unit 150 , the control unit 170 operates the image display device 100 to correspond to the input information. can be controlled. The user input interface unit 150 is a mechanical input means (or, a mechanical key, for example, a button located on the front/rear or side of the image display device 100, a dome switch), a jog wheel, a jog switch, etc.) and a touch input means. As an example, the touch input means consists of a virtual key, a soft key, or a visual key displayed on the touch screen through software processing, or a part other than the touch screen. It may be made of a touch key (touch key) disposed on the. On the other hand, the virtual key or the visual key, it is possible to be displayed on the touch screen while having various forms, for example, graphics (graphic), text (text), icon (icon), video (video) or these can be made by a combination of

Meanwhile, the sensing unit senses at least one of information in the digital signage, surrounding environment information surrounding the digital signage, and user information, and generates a sensing signal corresponding thereto. The controller 170 may control the driving or operation of the image display apparatus 100 or perform data processing, functions, or operations related to an application program installed in the image display apparatus 100 based on the sensing signal. Representative sensors among various sensors that may be included in the sensing unit will be described in more detail.

First, the proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or an object existing in the vicinity without mechanical contact using the force of an electromagnetic field or infrared rays. The proximity sensor may be disposed in an inner region of the digital signage covered by the touch screen as described above or in the vicinity of the touch screen.

Examples of the proximity sensor include a transmission type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a capacitive type proximity sensor, a magnetic type proximity sensor, an infrared proximity sensor, and the like. In the case where the touch screen is capacitive, the proximity sensor may be configured to detect the proximity of the conductive object as a change in an electric field according to the proximity of the object. In this case, the touch screen (or touch sensor) itself may be classified as a proximity sensor.

On the other hand, for convenience of description, the act of approaching an object on the touch screen without contacting it so that the object is recognized that it is located on the touch screen is called “proximity touch”, and the touch The act of actually touching an object on the screen is called "contact touch". The position where the object is touched in proximity on the touch screen means a position where the object is perpendicular to the touch screen when the object is touched in proximity. The proximity sensor 141 may detect a proximity touch and a proximity touch pattern (eg, proximity touch distance, proximity touch direction, proximity touch speed, proximity touch time, proximity touch position, proximity touch movement state, etc.) have. Meanwhile, the controller 170 processes data (or information) corresponding to the proximity touch operation and the proximity touch pattern sensed through the proximity sensor as described above, and further, displays visual information corresponding to the processed data on the touch screen. can be output to Furthermore, the controller 170 may control the image display device 100 so that different operations or data (or information) are processed according to whether a touch on the same point on the touch screen is a proximity touch or a contact touch. have.

The touch sensor detects a touch (or touch input) applied to the touch screen (or the display 180 ) using at least one of a variety of touch methods such as a resistive film method, a capacitive method, an infrared method, an ultrasonic method, and a magnetic field method. do.

As an example, the touch sensor may be configured to convert a change in pressure applied to a specific part of the touch screen or a change in capacitance occurring in a specific part of the touch screen into an electrical input signal. The touch sensor may be configured to detect a position, an area, a pressure at the time of a touch, an electrostatic capacitance at the time of a touch, etc. in which a touch object applying a touch on the touch screen is touched on the touch sensor. Here, the touch object is an object that applies a touch to the touch sensor, and may be, for example, a finger, a touch pen or a stylus pen, a pointer, or the like.

As such, when there is a touch input to the touch sensor, a signal(s) corresponding thereto is sent to the touch controller. The touch controller processes the signal(s) and then transmits the corresponding data to the controller 170 . Accordingly, the controller 170 can know which area of the display 180 has been touched, and the like. Here, the touch controller may be a component separate from the control unit 170 , or may be the control unit 170 itself.

Meanwhile, the controller 170 may perform different controls or may perform the same control according to the type of the touch object that touches the touch screen (or a touch key provided in addition to the touch screen). Whether to perform different control or the same control according to the type of the touch object may be determined according to the current operating state of the image display apparatus 100 or the running application program.

On the other hand, the above-described touch sensor and proximity sensor are independently or in combination, a short (or tap) touch on the touch screen (short touch), long touch (long touch), multi touch (multi touch), drag touch (drag touch) ), flick touch, pinch-in touch, pinch-out touch, swype touch, hovering touch, etc. It can sense touch.

The ultrasonic sensor may recognize location information of a sensing target by using ultrasonic waves. On the other hand, the control unit 170 can calculate the position of the wave source through the information sensed by the optical sensor and the plurality of ultrasonic sensors. The position of the wave source may be calculated using the property that light is much faster than ultrasonic waves, that is, the time for light to reach the optical sensor is much faster than the time for ultrasonic waves to reach the ultrasonic sensor. More specifically, the position of the wave source may be calculated using a time difference between the time that the ultrasonic wave arrives using light as the reference signal.

On the other hand, looking at the configuration of the user input interface unit 150, the camera includes at least one of a camera sensor (eg, CCD, CMOS, etc.), a photo sensor (or image sensor), and a laser sensor.

The camera and the laser sensor may be combined with each other to detect the touch of the sensing target for the 3D stereoscopic image. The photo sensor may be stacked on the display device, and the photo sensor is configured to scan the movement of the sensing target close to the touch screen. More specifically, the photo sensor mounts photo diodes and transistors (TRs) in rows/columns and scans the contents placed on the photo sensor using electrical signals that change according to the amount of light applied to the photo diodes. That is, the photo sensor calculates the coordinates of the sensing target according to the amount of change in light, and through this, location information of the sensing target can be obtained.

The control unit 170 demultiplexes an input stream through the tuner 110 or the demodulator 120 or the external device interface unit 130 or processes the demultiplexed signals to generate a signal for video or audio output. can be created and printed.

The image signal processed by the controller 170 may be input to the display 180 and displayed as an image corresponding to the image signal. Also, the image signal processed by the controller 170 may be input to an external output device through the external device interface unit 130 .

The audio signal processed by the control unit 170 may be outputted to the audio output unit 185 . Also, the audio signal processed by the controller 170 may be input to an external output device through the external device interface unit 130 . Although not shown in FIG. 1A , the controller 170 may include a demultiplexer, an image processor, and the like.

In addition, the controller 170 may control overall operations in the image display apparatus 100 . For example, the controller 170 may control the tuner 110 to select a channel selected by the user or an RF broadcast corresponding to a pre-stored channel (Tuning).

Also, the control unit 170 may control the image display apparatus 100 according to a user command input through the user input interface unit 150 or an internal program.

For example, the control unit 170 controls the tuner 110 to input a signal of a selected channel according to a predetermined channel selection command received through the user input interface unit 150 . Then, the video, audio, or data signal of the selected channel is processed. The controller 170 allows the user-selected channel information to be output through the display 180 or the audio output unit 185 together with the processed image or audio signal.

As another example, the control unit 170 receives an external device image playback command received through the user input interface unit 150 from an external device, for example, a camera or a camcorder, input through the external device interface unit 130 . A video signal or an audio signal may be output through the display 180 or the audio output unit 185 .

Meanwhile, the controller 170 may control the display 180 to display an image. For example, a broadcast image input through the tuner 110 , an external input image input through the external device interface unit 130 , an image input through a wireless communication unit, or an image stored in the storage unit 140 is displayed on the display 180 . ) can be controlled to be displayed.

In this case, the image displayed on the display 180 may be a still image or a moving image, and may be a 2D image or a 3D image.

Meanwhile, the controller 170 generates and displays a 3D object for a predetermined object among the images displayed on the display 180 . For example, the object may be at least one of an accessed web screen (newspaper, magazine, etc.), an electronic program guide (EPG), various menus, widgets, icons, still images, moving pictures, and text.

Such a 3D object may be processed to have a different depth from the image displayed on the display 180 . Preferably, the 3D object may be processed to look protruding compared to the image displayed on the display 180 .

Meanwhile, the control unit 170 recognizes the user's location based on the image captured by the photographing unit (not shown). For example, the distance (z-axis coordinate) between the user and the image display apparatus 100 may be determined. In addition, the x-axis coordinates and the y-axis coordinates in the image display device 100 corresponding to the user's location may be identified.

Meanwhile, although not shown in the drawings, a channel browsing processing unit for generating a thumbnail image corresponding to a channel signal or an external input signal may be further provided. The channel browsing processing unit receives the stream signal TS output from the demodulator 120 or the stream signal output from the external device interface unit 130, extracts an image from the input stream signal, and generates a thumbnail image. have. The generated thumbnail image may be input to the controller 170 as it is or encoded. Also, the generated thumbnail image may be encoded in a stream form and input to the controller 170 . The controller 170 may display a thumbnail list including a plurality of thumbnail images on the display 180 by using the input thumbnail images. In this case, the thumbnail list may be displayed in a simple view method displayed in a partial area while a predetermined image is displayed on the display 180 , or may be displayed in a full view method displayed in most areas of the display 180 .

The display 180 converts an image signal, a data signal, an OSD signal, a control signal, or an image signal, a data signal, and a control signal received from the external device interface unit 130 processed by the controller 170 to generate a driving signal. do.

In the present invention, it is exemplified that the display 180 is configured as a flexible display that can be deformed into a flat shape or a curved shape. When the display 180 is deformed in a curved shape as if it wraps around the user on the front side, realistic image quality and immersion may be provided to the user. Such a flexible display may be implemented by, for example, an OLED panel.

The display 180 may be configured to provide a 3D image to a user. For viewing a 3D image, the display 180 may be divided into an additional display method and an independent display method.

In the independent display method, a 3D image can be implemented by the display 180 alone without a separate 3D viewing device 195 , for example, 3D glasses, for example, a lenticular method, a parallax barrier. ) can be applied in various ways.

Meanwhile, the additional display method may implement a 3D image using the 3D viewing device 195 in addition to the display 180 , and for example, various methods such as a head mounted display (HMD) type and glasses type may be applied. In addition, the glasses type may be further divided into a passive method such as a polarized glasses type and an active method such as a shutter glass type. On the other hand, the head mounted display type can be divided into a passive method and an active method.

Meanwhile, the display 180 may be configured as a touch screen and may be used as an input device in addition to an output device.

The display deformation driver 183 is formed to deform the display 180 into a flat shape or a curved shape. The display deformation driving unit 183 may be configured such that the display 180 can be deformed by itself by giving an electrical signal to the display 180 , or that the display 180 is deformed by directly or indirectly applying a physical force to the display 180 . can

The display 180 displays (outputs) information processed by the image display device 100 . For example, the display 180 may display information on an execution screen of an application program driven by the image display device 100 or UI (User Interface) and GUI (Graphic User Interface) information according to the information on the execution screen. .

Also, the display 180 may be configured as a stereoscopic display unit for displaying a stereoscopic image.

A three-dimensional display method such as a stereoscopic method (glasses method), an auto stereoscopic method (glasses-free method), or a projection method (holographic method) may be applied to the stereoscopic display unit.

The audio output unit 185 receives a signal processed by the control unit 170, for example, a stereo signal, a 3.1 channel signal, or a 5.1 channel signal, and outputs the audio signal. The audio output unit 185 may be implemented as various types of speakers.

In addition, the audio output unit 185 may output audio data received from the wireless communication unit or stored in the storage unit 140 in a call signal reception, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like. The audio output unit 185 also outputs a sound signal related to a function (eg, a call signal reception sound, a message reception sound, etc.) performed in the image display apparatus 100 . The audio output unit 185 may include a receiver, a speaker, a buzzer, and the like.

In addition, a haptic module (not shown) included in the image display device 100 generates various tactile effects that the user can feel. A representative example of the tactile effect generated by the haptic module may be vibration. The intensity and pattern of vibration generated by the haptic module may be controlled by a user's selection or setting of a control unit. For example, the haptic module may synthesize and output different vibrations or output them sequentially.

In addition to vibration, the haptic module provides effects and effects caused by stimulation such as a pin arrangement that moves perpendicular to the contact skin surface, blowing force or suction force of air through a nozzle or suction port, rubbing against the skin surface, electrode contact, and electrostatic force. , can generate various tactile effects, such as the effect of reproducing a feeling of coolness and warmth using an element capable of absorbing heat or generating heat.

The haptic module can not only deliver a tactile effect through direct contact, but can also be implemented so that a user can feel the tactile effect through a muscle sense such as a finger or arm. Two or more haptic modules may be provided according to the configuration of the image display device 100 .

The light output unit (not shown) outputs a signal for notifying the occurrence of an event by using the light of the light source of the image display apparatus 100 . Examples of the event generated in the image display device 100 may be message reception, call signal reception, missed call, alarm, schedule notification, email reception, information reception through an application, and the like.

The signal output by the optical output unit is realized as the digital signage emits light of one color or multiple colors toward the front or rear. The signal output may be terminated when the digital signage detects the user's event confirmation.

Meanwhile, in order to detect a user's gesture, as described above, a sensing unit (not shown) including at least one of a touch sensor, a voice sensor, a position sensor, and a motion sensor may be further provided in the image display apparatus 100 . have. The signal sensed by the sensing unit (not shown) is transmitted to the control unit 170 through the user input interface unit 150 .

The controller 170 may detect a user's gesture by individually or in combination with an image captured by a photographing unit (not shown) or a signal sensed from a sensing unit (not shown).

The power supply unit 190 supplies the corresponding power to the entire image display device 100 . In particular, power may be supplied to the control unit 170 that may be implemented in the form of a system on chip (SOC), the display 180 for displaying an image, and the audio output unit 185 for outputting an audio. . In addition, according to the embodiment, power may be supplied to the heating unit including the heating wire.

The power supply unit 190 receives external power and internal power under the control of the control unit 170 to supply power required for operation of each component. The power supply unit 190 includes a battery, and the battery may be a built-in battery configured to be rechargeable, and may be detachably coupled to the terminal body for charging or the like.

In addition, the power supply unit 190 may include a connection port, and the connection port may be configured as an example of the interface 160 to which an external charger that supplies power for charging the battery is electrically connected.

As another example, the power supply unit 190 may be configured to charge the battery in a wireless manner without using the connection port. In this case, the power supply unit 190 uses one or more of an inductive coupling method based on a magnetic induction phenomenon or a resonance coupling method based on an electromagnetic resonance phenomenon from an external wireless power transmitter. power can be transmitted.

The remote control device 200 transmits a user input to the user input interface unit 150 . To this end, the remote control device 200 may use infrared (IR) communication, RF (Radio Frequency) communication, Bluetooth, Ultra Wideband (UWB), ZigBee, or the like. In addition, the remote control device 200 may receive an image, audio, or data signal output from the user input interface unit 150 , and display it or output the audio signal from the remote control device 200 .

The above-described image display device 100 is a fixed type, and includes digital broadcasting of ATSC method (8-VSB method), digital broadcasting of DVB-T method (COFDM method), digital broadcasting of ISDB-T method (BST-OFDM method), and the like. It may be a digital broadcast receiver capable of receiving at least one. In addition, as a mobile type, digital broadcasting of terrestrial DMB method, digital broadcasting of satellite DMB method, digital broadcasting of ATSC-M/H method, digital broadcasting of DVB-H method (COFDM method), and media flow (Media Forward Link Only) method are available. It may be a digital broadcast receiver capable of receiving at least one of digital broadcasts and the like. It may also be a digital broadcast receiver for cable, satellite communication, and IPTV.

Meanwhile, the image display device described in this specification includes a TV receiver, a mobile phone, a smart phone, a notebook computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), and the like. can

Meanwhile, a block diagram of the image display device 100 illustrated in FIG. 1A is a block diagram for an embodiment of the present invention. Each component of the block diagram may be integrated, added, or omitted according to the specifications of the image display device 100 that are actually implemented. That is, two or more components may be combined into one component, or one component may be subdivided into two or more components as needed. In addition, the function performed in each block is for explaining the embodiment of the present invention, and the specific operation or device does not limit the scope of the present invention.

1B is an external perspective view of an image display device 100 according to an embodiment of the present invention.

As shown in FIG. 1B , the image display apparatus 100 may include a housing in which a display panel is disposed on the front side and a space is formed in which various parts are located.

The display panel of the image display device 100 may be manufactured in various sizes and standards. In addition, as shown in FIG. 1B , the image display apparatus 100 is equipped with a plurality of wheels, so that the installed position of the image display apparatus 100 may be changed.

1C is a conceptual diagram illustrating a wireless communication network performed in the image display device 100 according to an embodiment of the present invention.

As shown in FIG. 1C , the image display apparatus 100 may perform wireless communication with the server 1000 through the first wireless communication. Also, the image display apparatus 100 may perform wireless communication with the user terminal 2000 through the first wireless communication. In this case, the user terminal 2000 includes a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation system, and a slate. PC (slate PC), tablet PC (tablet PC), ultrabook (ultrabook), wearable device (e.g., watch-type terminal (smartwatch), glass-type terminal (smart glass), HMD (head mounted display) ) may be included.

More specifically, the image display apparatus 100 may receive content from the server 1000 through a telecommunication network or a local area network (WAN/LAN) 3000 and may output the transmitted content. The image display device 100 may store the transmitted content in the storage unit 140 or may output only in real time while temporarily storing at least a portion of the transmitted content in a buffer (not shown).

Also, the image display apparatus 100 may receive routing table information related to a location where the image display apparatus 100 is disposed from the server 1000 . For example, the routing table information may include information related to a network to which external image display apparatuses included in a predetermined area in which the image display apparatus 100 is located are connected.

A routing table is used for the purpose of converting a destination address into a network route for reaching the destination in a computer network. The most important purpose of a routing protocol is to configure this routing table.

In the hop-by-hop routing method, which is the simplest model, the routing table of each router has information of the next router to go through to reach the destination for all destination (ex. external video display device) information. Assuming the routing table is consistent, data can be sent anywhere on the network with this simple algorithm of receiving a packet, examining the routing table to find the next router, and passing the packet to that router. On the other hand, in the hierarchical architecture, several forwarding processes can be replaced with one table check, which reduces the table check time and thus increases the network performance.

One important basic assumption in routing is that similar addresses are contiguous to destinations with similar addresses, which can manage multiple destination addresses in one routing table entry.

Each router on the network must have consistent routing table information, otherwise a loop may occur.

The routing table information may include destination host information and next hop information. Specifically, the destination host information may include an address value of a host that becomes the final destination of the packet. In addition, the next hop information may include information related to an adjacent path for delivering the packet to the destination host. That is, there may be a route that supports effective routing among several routes reaching the destination. In this route, the address of the router located in the next hop is recorded.

The control unit 170 may process source routing, distributed routing, central routing, and hierarchical routing by using the routing table information.

Specifically, when the control unit 170 processes the source routing, the host transmitting the packet may determine a forwarding path to the destination host by itself. In order to support source routing, the controller 170 may manage transmission path information for transmitting a packet to a receiving host in a routing table of the transmitting host. In addition, the control unit 170 should record such path information in the transport packet. When the controller 170 performs a routing function as an intermediate router, it can properly deliver the packet to the final destination by intermediating the packet using path information included in the transport packet.

Also, when supporting source routing, the controller 170 may support both the datagram method and the virtual circuit method. In the virtual circuit method, a special connection packet containing path information is used in the connection initialization process. An intermediate router can select a forwarding path by interpreting the packet's path information. In the datagram method, since path information is included in the header of every packet to be transmitted, reliability can be further improved.

Meanwhile, when the control unit 170 supports distributed routing, each router located in a packet transmission path may participate in efficient path selection. The distributed routing method is widely used in the datagram method. When the controller 170 supports distributed routing, the routing table information may be dynamically changed according to a network situation in which the video display device 100 is included.

When the control unit 170 supports centralized routing, it is possible to process all information about a transmission path in a specific network using a Routing Control Center (RCC) host. In this case, the transmitting host desiring to transmit the packet included in the specific network may obtain in advance route information for arriving from the RCC to the destination host. Using this information, the sending host can send packets in the same way as source routing.

When the controller 170 supports hierarchical routing, the configuration of the network including the image display apparatus 100 may be managed in a hierarchical form.

A more specific embodiment of routing table information will be described with reference to FIG. 5A below.

Referring to FIG. 1C , the image display apparatus 100 may perform wireless communication with at least one external image display apparatus 100a and 100b through the second wireless communication.

More specifically, the control unit 170 of the image display apparatus 100, using the second wireless communication, the external image display apparatus 100a located within a predetermined distance from the position where the image display apparatus 100 is disposed. , 100b) can be searched.

Also, the controller 170 of the image display apparatus 100 may search the external image display apparatuses 100a and 100b using the routing table received from the server 1000 . Accordingly, the wireless communication unit of the image display device 100 may perform second wireless communication with the searched external image display device.

On the other hand, the image display apparatus 100 can perform data transmission and reception with the external image display apparatuses 100a and 100b using the second wireless communication as well as for the external image display apparatuses 100a and 100b. Routing function can be performed.

More specifically, referring to FIG. 1C , the external image display device 100a may be connected to the server 1000 through the first wireless communication. Also, the external image display device 100b may not be directly connected to the server 1000 . That is, the external image display apparatus 100b may not be connected to the server 1000 through the first wireless communication.

In this case, the image display device 100 connected to the server through the first wireless communication and connected to the external image display device 100b through the second wireless communication receives the signal transmitted from the external image display device 100b. It can be transmitted to the server 1000 or the external image display device 100a. In another example, the image display apparatus 100 may transmit a signal received from the server 1000 or the external image display apparatus 100a to the external image display apparatus 100b.

Hereinafter, an embodiment of a method for controlling an image display device according to the present invention will be described with reference to FIG. 2 .

As shown in FIG. 2 , the wireless communication unit of the image display apparatus 100 may perform first wireless communication with the server 1000 to receive routing table information ( S201 ).

The routing table information may be fixed information by static routing, or may be flexible information by dynamic routing.

After receiving the routing table information from the server, the image display device 100 detects information related to the network properties of at least one external image display device corresponding to the routing table information, and uses the received routing table. By updating at predetermined time intervals, dynamic routing can be implemented.

For example, the wireless communication unit of the image display device 100 may receive the first routing table information by using the first wireless communication. In addition, the wireless communication unit performs second wireless communication with at least a portion of at least one external image display device corresponding to the received routing table information, and detects information related to network properties of at least a portion of the external image display device. can do. Meanwhile, the wireless communication unit may receive information related to a change in network properties of at least some of the external image display devices from the server 1000, and the controller 170 uses the received information related to changes in network properties to , it is possible to update the received routing table information.

For example, the first wireless communication may include a wide area communication (WAN) or a local area communication (LAN). In another example, the first wireless communication is, WLAN (Wireless LAN), Wi-Fi (Wireless-Fidelity), Wi-Fi (Wireless Fidelity) Direct, DLNA (Digital Living Network Alliance), WiBro (Wireless Broadband), WiMAX (World Interoperability for Microwave Access), High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE), Long Term Evolution-Advanced (LTE-A), and the like. The network interface unit 135 of the image display device 100 transmits and receives data from the server 1000 according to at least one wireless Internet technology within a range including Internet technologies not listed above.

Meanwhile, the controller 170 of the image display apparatus 100 may receive routing table information from the server when the initialization function of the image display apparatus 100 is performed. The storage unit 140 stores the received routing table information, and the control unit 170 may update the stored routing table information at predetermined time intervals.

Next, the controller 170 uses the received routing table information to perform a second wireless communication with at least one of the external image display devices existing within a predetermined distance from the main body of the image display device 100 by using the wireless communication unit. can be controlled (S202).

More specifically, the controller 170 may extract identification information of at least one external image display device included in the local network to which the image display device 100 is connected, using the received routing table information. The controller 170 may control the network interface 135 to perform second wireless communication with at least one external image display device using the extracted identification information.

For example, the second wireless communication is short-range wireless communication, and includes Bluetooth™, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and Near Field (NFC). Communication), Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, and at least one of Wireless USB (Wireless Universal Serial Bus) technologies may be used.

In another example, the first wireless communication and the second wireless communication may use different communication schemes. In another example, the first wireless communication and the second wireless communication may use different bandwidths. In addition, the control unit 170 may determine whether the received data is received through any one of the first and second wireless communication using identification information related to the communication method of the first and second wireless communication.

The controller 170 may control the wireless communication unit to receive the first data from the external image display device performing the second wireless communication (S203).

Specifically, the first data may include data related to content selected by a user based on a user input applied to the user input interface unit 150 . For example, the first data may be any one content selected from the list while information related to the content list is output on the display 180 . In another example, the first data may include information related to a selected broadcast channel based on a user input applied from the remote control device 200 .

Also, the controller 170 may determine whether to store the first data with respect to the external image display device performing the second wireless communication. In this case, the controller 170 may control the wireless communication unit to receive the first data from at least some of the external image display devices performing the second wireless communication, based on the determination result. That is, the controller 170 may determine an external image display device storing predetermined first data and control the wireless communication unit to receive the first data through second wireless communication.

3A and 3B below, an embodiment in which the image display apparatus 100 according to the present invention performs wireless communication with a plurality of external image display apparatuses and servers will be described.

As shown in FIG. 3A , the wireless communication unit of the image display apparatus 100 may perform first wireless communication with the server 1000 . In addition, the wireless communication unit may perform second wireless communication with at least one external image display apparatus 100a , 100b , 100c using the routing table information received from the server 1000 .

Specifically, the data transmission/reception speed of the first wireless communication performed by the network interface unit 135 with the server 1000 may be different from the data transmission/reception speed of the second wireless communication performed by the wireless communication unit with the external image display device. have.

Referring to FIG. 3A , the wireless communication unit of the image display apparatus 100 may perform second wireless communication with a plurality of external image display apparatuses 100a, 100b, and 100c. In this case, the second wireless communication performed with the plurality of external image display devices may be independently performed. That is, the wireless communication unit may transmit and receive data at different rates to and from the plurality of external image display devices through the second wireless communication.

As shown in FIG. 3A , the controller 170 of the image display apparatus 100 may control the wireless communication unit to receive the first data data1 using at least one of first and second wireless communication.

Specifically, the control unit 170 selects at least one of the first and second wireless communication based on information related to the state of the first and second wireless communication, and uses the selected wireless communication to obtain the first data can receive For example, the information related to the state of the first and second wireless communication is related to at least one of whether wireless communication is connected, whether a failure occurs in wireless communication, data transmission/reception speed of wireless communication, and traffic usage status of wireless communication may contain information.

Also, the controller 170 may determine whether to store the first data with respect to the external image display device performing the second wireless communication. For example, the control unit 170 transmits, to at least one of the external image display devices performing the second wireless communication, a request message for checking whether the first data is stored, using the second wireless communication, can do.

In response to receiving the request message, the external image display device may transmit a confirmation message indicating whether to store the first data back to the image display device.

Accordingly, the controller 170 may determine whether the first data is stored in the external image display device performing the second wireless communication, based on the received confirmation message.

More specifically, the controller 170 may check the quality information of the first data based on the received confirmation message. For example, when the first data is image data, the quality information may include resolution information of the first data.

Based on the determination result, the controller 170 may control the wireless communication unit to receive the first data from at least a portion of the external image display device that stores the first data for performing the second wireless communication. have.

Referring to FIG. 3B , the controller 170 transmits the first data from each of the at least one external image display device by using information related to a communication state between the wireless communication unit and the at least one external image display device. You can control the receiving rate.

That is, when it is determined that the control unit 170 receives the first data from the plurality of external image display devices and a change in state of the second wireless communication performed with at least one of the plurality of external image display devices occurs, Data transmission rates may be changed for the rest of the plurality of external image display devices. For example, the state change of the second wireless communication may be related to an increase or decrease in data transmission speed, whether a failure occurs, and the like.

More specifically, as shown in FIG. 3B , the controller 170 may increase the traffic allocation to the external image display apparatuses 100a and 100c that receive the first data, and an external device that does not receive the first data. It is possible to reduce traffic allocation to the image display device 100b.

In addition, in the state of receiving the first data from the server, the control unit 170 in response to the disconnection 310 of the connection of the first wireless communication with the server or a change in the communication state of the first wireless communication, at least one It is possible to increase (320, 340) the data reception speed of the second wireless communication performed with the external image display device of the. Also, in response to the disconnection of the first wireless communication, the control unit 170 may reduce ( 340 ) the data reception speed of the second wireless communication with an external image display device that does not receive the first data.

On the other hand, when the connection of the first wireless communication is released while receiving the second data through the first wireless communication, the control unit 170 transmits the second data to the external image display device performing the second wireless communication. It can be determined whether data is stored or not. In addition, when the data communication speed of the first wireless communication is reduced below a predetermined standard in a state where the control unit 170 receives the second data through the first wireless communication, the external image for performing the second wireless communication It may be determined whether the second data is stored in the display device.

In addition, the controller 170 may determine whether the second data corresponding to the quality information is stored in the external image display device by using the quality information of the second data received from the server.

Based on the determination result, the controller 170 may control the wireless communication unit to receive the second data from at least some of the external image display devices performing the second wireless communication. In this case, the controller 170 may receive the remainder except for at least a portion of the second data already transmitted from the server from the external image display device.

When the first data and the second data correspond, the control unit 170 performs the second wireless communication with respect to at least one transmitting the first data among a plurality of external image display devices performing second wireless communication. can increase the communication speed.

As shown in FIG. 4 , the controller 170 divides the first data into a plurality of parts, and receives each of the plurality of parts from different external image display devices using the second wireless communication. To do so, it is possible to control the wireless communication unit.

More specifically, referring to FIG. 4 , the controller 170 may control the wireless communication unit to simultaneously receive the first data from a plurality of external image display devices 100b, 100c, and 100d storing the first data. have. The controller 170 may control the wireless communication unit to divide the first data into a plurality of parts, and to receive each part from different external image display devices 100b, 100c, and 100d.

The controller 170 divides the first data into a plurality of parts by using a plurality of external image display devices for storing the first data and information related to the property of the second wireless communication performed, and divides the first data into a plurality of parts, and the plurality of external images Each can be assigned to a display device. For example, the information related to the property of the second wireless communication may include information related to a data transmission rate of the second wireless communication and whether or not a failure occurs in the second wireless communication.

Meanwhile, although not shown in FIG. 4 , the controller 170 may control the wireless communication unit to simultaneously receive the same portion of the first data from a plurality of external image display devices.

5A to 5C below, an embodiment in which an image display device related to the present invention provides a routing function to an external image display device will be described.

Referring to FIG. 5A , the wireless communication unit of the image display apparatus 100 may receive a request message for third data from the first external image display apparatus 100c performing the second wireless communication.

Specifically, the request message for the third data may include identification information of the third data. In addition, the first external image display device 100c that has transmitted the request message may be in a state in which the connection with the server through the first wireless communication is released.

In this case, the controller 170 of the image display apparatus 100 stores the third data for at least one of the server 1000 and the second external image display apparatuses 100a and 100b performing second wireless communication. can be judged

In addition, the control unit 170 may control the wireless communication unit to transmit the request message to at least one of the server storing the third data and the second external image display device based on the determination result.

In addition, when the server 1000 stores the third data, the control unit 170 may control the wireless communication unit to receive the third data from the server through the first wireless communication. . Accordingly, the controller 170 may control the wireless communication unit to transmit the received third data to the first external image display device.

Also, as shown in FIG. 5A , the wireless communication unit of the image display apparatus 100 may receive destination information together with fourth data from the first external image display apparatus performing the second wireless communication.

In this case, the controller 170 may detect a communication path to the second external image display device corresponding to the received destination information. Also, the controller 170 may control the wireless communication unit to transmit the received fourth data through the detected communication path.

More specifically, the controller 170 may detect the communication path so as to minimize a communication cost for transmitting the received fourth data to the second external image display device. Also, the controller 170 may detect the communication path so as to minimize a time required for transferring the received fourth data to the second external image display device.

Meanwhile, although not shown in FIG. 5A , the image display apparatus 100 may further include an input unit. In this case, the control unit 170, in a state in which the display outputs an image related to the routing table information, based on a user input applied to the input unit, any one of the external image display devices that perform the second wireless communication You can choose one. Also, the controller 170 may control the wireless communication unit to transmit fifth data to the selected external image display device.

Referring to FIG. 5C , the display 180 may output a first image related to a position where the image display device 100 is disposed. In this case, the first image may include a second image related to the received routing table information.

More specifically, the second image related to the routing table information may include information related to network identifiers of the image display device 100 and at least one external image display device 510a, 510b, 510c, 510d.

For example, the controller 170 may control the display 180 to output a window 503 including information related to a network identifier of any one of the external image display devices 510c based on a user selection. can

The controller 170 may determine a transmission target of the fifth data based on a user input applied to the outputted first image.

On the other hand, when it is determined that the connection of the first wireless communication is disconnected before receiving the routing table information, the control unit 170 performs an external image display device located within a predetermined distance from the image display device and a third wireless communication device. communication can be performed. In an embodiment, the third wireless communication may be a different communication method from the first and second wireless communication, or may be the same communication method. For example, the communication method of the third wireless communication may include Bluetooth, RFID, NFC, and the like.

In this case, the controller 170 may control the wireless communication unit to transmit a request message for the routing table information to the external image display device performing the third wireless communication. Accordingly, even if the image display apparatus 100 does not perform wireless communication with the server, the routing table information can be received from the external image display apparatus located within a predetermined distance from the image display apparatus 100 .

The above-described image display apparatus is not limited to the configuration and method of the above-described embodiments, and the embodiments may be configured by selectively combining all or part of each embodiment so that various modifications can be made.

Claims (16)

a display unit installed on the body;
a wireless communication unit configured to perform first wireless communication with the server to receive routing table information related to a location in which the main body is disposed;
a controller for controlling the wireless communication unit to perform second wireless communication with at least one external image display device using the received routing table; and
including an input;
The control unit is
controlling the wireless communication unit to receive first data selected by a user input from the at least one external image display device through the second wireless communication;
In a state in which the display unit outputs an image related to the routing table information, based on a user input applied to the input unit, any one of the external image display devices performing the second wireless communication is selected, and the selected external image Controls the wireless communication unit to transmit the fifth data to the display device,
Before receiving the routing table information, if it is determined that the connection of the first wireless communication is disconnected, a third wireless communication is performed with an external image display device located within a predetermined distance from the image display device, and the third wireless communication is performed. The video display device, characterized in that for controlling the wireless communication unit to transmit a request message for the routing table information to an external video display device that performs wireless communication. According to claim 1,
The control unit is
For an external image display device performing the second wireless communication, determining whether to store the first data,
and controlling the wireless communication unit to receive the first data from at least some of the external image display devices performing the second wireless communication based on the determined result. According to claim 1,
The control unit is
dividing the first data into a plurality of parts,
and controlling the wireless communication unit to receive each of the plurality of parts from different external image display devices by using the second wireless communication. According to claim 1,
The control unit is
Using information related to a communication state between the wireless communication unit and the at least one external image display device,
An image display apparatus according to claim 1, wherein a speed at which the first data is transmitted and received from each of the at least one external image display apparatus is controlled. According to claim 1,
The control unit is
When the connection of the first wireless communication is released while receiving the second data through the first wireless communication,
determining whether to store the second data with respect to an external image display device performing the second wireless communication;
and controlling the wireless communication unit to receive the second data from at least some of the external image display devices performing the second wireless communication based on the determined result. 6. The method of claim 5,
The control unit is
When the first data and the second data correspond to each other, the image display device, characterized in that for increasing the communication speed of the second wireless communication. According to claim 1,
The wireless communication unit receives a request message for third data from a first external image display device performing the second wireless communication,
The control unit is
determining whether to store the third data with respect to at least one of the server and a second external image display device performing the second wireless communication;
Based on the determined result, the image display device, characterized in that the control of the wireless communication unit to transmit a request message to at least one of the second external image display device and the server for storing the third data. 8. The method of claim 7,
The control unit is
When the server stores the third data, receiving the third data from the server through the first wireless communication,
and controlling the wireless communication unit to transmit the received third data to the first external image display device. According to claim 1,
The wireless communication unit receives destination information together with fourth data from a first external image display device performing the second wireless communication,
The control unit is
detecting a communication path to a second external image display device corresponding to the received destination information, and controlling the wireless communication unit to transmit the received fourth data through the detected communication path,
To minimize the communication cost for transmitting the received fourth data to the second external image display device, the time required for detecting the communication path and transferring the fourth data to the second external image display device is reduced. An image display device, characterized in that for detecting the communication path so as to minimize it. delete delete delete delete delete delete delete

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