KR20160093908A - Video display device and operating method thereof - Google Patents

Abstract

According to an embodiment of the present invention, an image display device includes: a broadcasting reception unit which measures receiving sensibility of each of a plurality of broadcasting signals received from a plurality of antennas, and selects, on the basis of the receiving sensibility of each of the plurality of measured broadcasting signals, the broadcasting signal having the highest receiving sensibility among the plurality of broadcasting signals; a display unit which displays a screen corresponding to the received broadcasting signal; and a control unit which displays a screen corresponding to the broadcasting signal on the display unit on the basis of the selected broadcasting signal.

Description

TECHNICAL FIELD [0001] The present invention relates to a video display device and an operation method thereof.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image display apparatus and an operation method thereof, and more particularly to an image display apparatus and a method of operating the same that receive a broadcast signal.

In recent years, digital TV services using wired or wireless communication networks have become popular. The digital TV service can provide various services that can not be provided by the existing analog broadcasting service.

For example, in the case of IPTV (Internet Protocol Television) service, which is one kind of digital TV service, it provides a bidirectionality allowing the user to actively select the type of viewing program, viewing time, and the like. The IPTV service may provide various additional services such as Internet search, home shopping, online game, etc. based on the bidirectionality.

In addition to digital terrestrial broadcasting services, digital TVs in recent years are also receiving various broadcasting services such as cable broadcasting services, cable broadcasting services, and satellite broadcasting services.

Due to the unique service provided to each of various broadcasting service providers, the user subscribes to a pay-per-view broadcasting service in order to utilize the broadcasting service desired by the user, and in recent years, the number of users using the paid broadcasting service is increasing.

On the other hand, it is general that a pay-TV service provides a broadcast service through a cable or an artificial satellite rather than a general radio wave transmission method so that only a service person can use a pay-TV service.

Accordingly, the assumption of installing an antenna for receiving a broadcasting signal for a free broadcasting service has been remarkably reduced compared to the past.

However, since broadcasting service providers based on OTA (On The Air) also provide various interesting contents for securing users, TV users who use the pay-TV service can also use public broadcasting Services are also being used.

Therefore, in addition to the broadcasting service through the cable or the satellite, the users connect the antenna for broadcasting reception to the TV in order to receive the broadcasting service by the OTA method.

However, there is a disadvantage that an antenna for receiving broadcasts connected to a TV is wired to the room or outdoor near the TV, so that there is a limit to the space in which the antenna can be located, and also the appearance is not good.

In addition, an antenna connected to a TV and a wired connection has a disadvantage in that the radiation pattern of the antenna is damaged due to various obstacles located indoors or outdoors, resulting in the orientation of the antenna.

Accordingly, there is a need for a video display device capable of easily receiving a broadcast signal transmitted through an OTA (On The Air) through various antennas and selecting a broadcast signal having a high reception sensitivity among broadcast signals received through various antennas .

An object of the present invention is to receive a plurality of broadcast signals through a plurality of antennas and to select and display a broadcast signal having the best reception sensitivity.

It is also an object of the present invention to calculate an optimum receiving direction for increasing the receiving sensitivity of an antenna and to adjust the reception direction of the antenna so as to increase reception sensitivity of the antenna.

The video display device according to the embodiment of the present invention measures the reception sensitivity of each of a plurality of broadcast signals received from a plurality of antennas and measures the reception sensitivity of each of the plurality of broadcast signals based on reception sensitivity of each of the plurality of measured broadcast signals A broadcast receiver for selecting a broadcast signal with high sensitivity; A display unit for displaying a screen corresponding to the received broadcast signal; And a controller for displaying a screen corresponding to the broadcast signal on the display unit based on the selected broadcast signal.

A method of operating an image display device according to an exemplary embodiment of the present invention includes: measuring reception sensitivity of each of a plurality of broadcast signals received from a plurality of antennas; Selecting a broadcast signal having the highest reception sensitivity among the plurality of broadcast signals based on reception sensitivity of each of the plurality of measured broadcast signals; And displaying a screen corresponding to the broadcast signal based on the selected broadcast signal.

According to various embodiments of the present invention, it is possible to receive a plurality of broadcast signals through a plurality of antennas and to select a broadcast signal having the best reception sensitivity, thereby improving the broadcast signal reception environment.

In addition, the present invention can calculate the optimum receiving direction for increasing the receiving sensitivity of the antenna, thereby improving the reception sensitivity of the broadcast signal of the antenna.

1 is a block diagram illustrating a configuration of a video display device according to an embodiment of the present invention.
2 is a block diagram illustrating a configuration of a broadcast receiving unit according to an embodiment of the present invention.
3 is an exemplary view illustrating an upper antenna provided on the upper side of the video display device according to the embodiment of the present invention.
4 is a view illustrating an example of a left antenna and a right antenna provided on a side of a video display device according to an embodiment of the present invention.
5 is a block diagram of a remote control device according to an embodiment of the present invention.
6 shows an example of an actual configuration of a remote control apparatus according to an embodiment of the present invention.
7 is a block diagram showing the configuration of an antenna according to an embodiment of the present invention.
8 is a flowchart illustrating an operation method of an image display apparatus according to an exemplary embodiment of the present invention.
9 is a diagram illustrating exemplary reception of a plurality of broadcast signals according to an exemplary embodiment of the present invention.
10 is a diagram illustrating exemplary reception of a plurality of broadcast signals according to another embodiment of the present invention.
11 is a diagram illustrating an example of receiving a plurality of broadcast signals according to another embodiment of the present invention.
FIG. 12 is a diagram illustrating transmission of broadcast signals of an antenna according to an embodiment of the present invention. Referring to FIG.
FIG. 13 is a diagram illustrating transmission of broadcast signals of an antenna according to another embodiment of the present invention. Referring to FIG.
14 is a ladder diagram illustrating an operation method of an image display device according to another embodiment of the present invention.
FIG. 15 is an exemplary view illustrating broadcast reception information display according to an embodiment of the present invention.
FIG. 16 is an exemplary view for calculating a reception direction of an antenna corresponding to a transmission tower according to an embodiment of the present invention. FIG.
17 is an exemplary view of an antenna direction calculation corresponding to a transmission tower according to another embodiment of the present invention.

Hereinafter, embodiments related to the present invention will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

Hereinafter, a screen display control method according to an embodiment of the present invention and an image display device using the same will be described in detail with reference to the accompanying drawings.

The video display device according to the embodiment of the present invention is an intelligent video display device that adds a computer support function to a broadcast reception function, for example, and is equipped with an internet function while being faithful to a broadcast reception function, It is more convenient to use interface such as touch screen or space remote control. Also, it can be connected to the Internet and a computer by the support of a wired or wireless Internet function, and can perform functions such as e-mail, web browsing, banking or game. A standardized general-purpose OS can be used for these various functions.

Therefore, the video display device described in the present invention can freely add or delete various applications, for example, on a general-purpose OS kernel, so that various user-friendly functions can be performed. More specifically, the video display device may be, for example, a network TV, an HBBTV, a smart TV, an LED TV, an OLED TV, or the like, and may be applicable to a smartphone in some cases.

1 is a block diagram illustrating a configuration of an image display device 100 according to an embodiment of the present invention.

1, an image display device 100 includes a broadcast receiving unit 101, a sound obtaining unit 110, an image obtaining unit 120, a broadcast receiving unit 130, an external device interface unit 135, a storage unit A user input interface unit 150, a communication unit 160, a control unit 170, a display unit 180, an audio output unit 185, and a power supply unit 190.

The video display device 100 includes a broadcast receiving unit 101, a sound obtaining unit 110, an image obtaining unit 120, a broadcast receiving unit 130, an external device interface unit 135, a storage unit 140, A case 108 covering a part or all of the side and a rear side of the input interface unit 150, the communication unit 160, the control unit 170, the display unit 180, the audio output unit 185 and the power supply unit 190, . ≪ / RTI >

Here, the case 108 may include a plurality of covers, and a plurality of covers may be combined to constitute one case 108. [ For example, the case 108 may include an upper case, a side case, a lower case, a front case, and a back case.

The broadcast receiving unit 101 can receive a broadcast signal for a broadcast service of various frequency bands.

For example, the broadcast receiving unit 101 can receive broadcast signals of a VHF (Very High Frequency) and UHF (Ultra High Frequency) band.

The broadcast receiving unit 101 will be described in detail with reference to FIG.

2 is a block diagram illustrating a configuration of a broadcast receiving unit according to an embodiment of the present invention.

The broadcast receiving unit 101 may include an internal antenna 102, a communication unit 103, a comparison unit 104, a switching unit 105, and an amplification unit 106.

The built-in antenna 102 is built in the image display device 100 and can receive a broadcast signal.

The built-in antenna 102 is provided on one side or a plurality of side surfaces of the image display device 100, and can receive a broadcast signal.

For example, the built-in antenna 102 may include at least one of an upper antenna 102a, a left antenna 102b, and a right antenna 102c, depending on the location.

Here, one side or a plurality of side surfaces of the image display device 100 may mean a bezel of the image display device 100. [ Accordingly, the built-in antenna 102 may be included in the bezel of the image display device 100.

Also, the built-in antenna 102 may be included in a part of the case 108 of the image display device 100.

Also, the built-in antenna 102 may be positioned between the case 108 of the video display device 100 and the inner substrate.

In one embodiment, the internal antenna 102 may be located above the image display device 100.

This will be described with reference to FIG.

3 is an exemplary view illustrating an upper antenna provided on the upper side of the video display device according to the embodiment of the present invention.

Referring to FIG. 3, the upper antenna 102a may be positioned at the upper end of the image display device 100. FIG. For example, the upper antenna 102a may be provided on the upper side of the case 108 covering the video display device 100. [

In another embodiment, the internal antenna 102 may be located at one side of the image display device 100. [

This will be described with reference to FIG.

4 is a view illustrating an example of a left antenna and a right antenna provided on a side of a video display device according to an embodiment of the present invention.

Referring to FIG. 4, the left antenna 102b may be located on the left side of the image display device 100. FIG. For example, the left antenna 102b may be provided on the left side of the case 108 covering the image display device 100. [ And the right antenna 102c may be positioned on the right side of the image display device 100. [ For example, the right antenna 102c may be provided on the right side of the case 108 covering the video display device 100. [

The built-in antenna 102 may be provided on one side or a plurality of side surfaces of the image display device 100 so as to have an omni-directional characteristic. Omnidirectional is also called non-directional or non-directional.

On the other hand, the built-in antenna 102 can be moved within a certain range at a position where the built-in antenna 102 is provided.

For example, the built-in antenna 102 is provided in the case 108 of the image display device 100 as a slide, and may be moved to a different position from a predetermined position of the case 108.

The built-in antenna 102 is connected to a rail member (not shown) on the case 108 of the video display device 100 and is moved from a predetermined position of the case 108 to another position Lt; / RTI > Here, the rail member may be a non-conductive material.

Since the above-described slide type and rail member have a known structure, a description thereof will be omitted.

The communication unit 103 can communicate with the antenna 300 to be described later.

For example, the communication unit 130 may receive data on a broadcast signal received from the antenna 300, and may transmit data on a control operation related to broadcast reception to the antenna 300.

The communication unit 103 can communicate with the antenna 300 through various communication methods. For example, the communication unit 103 may be a Bluetooth (registered trademark), a radio frequency identification (RFID), an infrared data association (IrDA), an ultra wideband (UWB), a ZigBee, Wireless-Fidelity), Wi-Fi Direct, and Wireless USB (Wireless Universal Serial Bus).

The communication unit 103 may be included in the network interface unit 133 or the user input interface unit 150.

The comparison unit 104 may measure the reception sensitivity of each of the plurality of received broadcast signals and compare reception sensitivities of the plurality of measured broadcast signals.

For example, the comparison unit 104 may measure reception sensitivity of one or more broadcast signals received from at least one of the internal antenna 102, the antenna 300, and the external antenna 400. The comparison unit 104 may compare reception sensitivity of the measured one or more broadcast signals. Therefore, the comparison unit 104 can determine a broadcast signal having the best reception sensitivity among a plurality of received broadcast signals based on the comparison result of the reception sensitivity.

Meanwhile, the comparison unit 104 may be included in the control unit 170.

Meanwhile, the external antenna 400 may receive a broadcast signal and may transmit the broadcast signal received by the image display device 100.

The external antenna 400 may be located indoors or outdoors and may be electrically connected to the video display device 100. In an embodiment, the external antenna 400 may be attached to one side of the room wall provided with the image display device 100.

Also, the external antenna 400 may be attached to the image display device 100. Accordingly, the external antenna 400 may be attached to one side or back side of the image display device 100 or the like.

The switching unit 105 may receive a plurality of broadcast signals and may switch any one of the plurality of received broadcast signals to be transmitted to the amplification unit 106 or the tuner 131.

For example, the switching unit 105 receives a broadcast signal from at least one of the internal antenna 102, the antenna 300, and the external antenna 400, and transmits one of the plurality of received broadcast signals to the amplification unit 102. [ To the tuner (106) or the tuner (131).

The switching unit 105 receives a broadcast signal from at least one of the internal antenna 102, the antenna 300 and the external antenna 400. The switching unit 105 may receive a broadcast signal based on the comparison result of the comparison unit 104, It is possible to transmit the broadcast signal having the highest reception sensitivity among the broadcast signals of the first and second broadcast signals to the amplification unit 106 or the tuner 131.

The amplification unit 106 can amplify the received broadcast signal.

The amplifying unit 106 may amplify the size of the broadcasting signal transmitted from the switching unit 105. [

The amplifying unit 106 may transmit the amplified broadcasting signal to the tuner 131. [

The voice acquiring unit 110 can acquire the voice.

The voice acquiring unit 110 may include at least one microphone so as to acquire voice through the included microphone. And the voice acquisition unit 110 may transmit the acquired voice to the control unit 170. [

The image acquisition unit 120 may acquire an image.

The image acquiring unit 120 may include at least one or more cameras to acquire an image through the included camera.

The image acquiring unit 120 may transmit the acquired image to the controller 170. [

The broadcast receiver 130 may include a tuner 131, a demodulator 132, and a network interface 133.

The tuner 131 can tune a broadcast signal of a desired channel among the received broadcast signals. The tuner 131 down-converts the received broadcast signal into an intermediate frequency (IF) signal and outputs the down-converted signal to the demodulation unit 132.

In addition, the tuner 131 can receive a real-time stream and a non-real-time stream.

The demodulator 132 performs automatic gain control, carrier recovery, and timing recovery on the digital IF signal of the passband inputted from the tuner 131, converts the digital IF signal into a baseband signal, and performs channel equalization.

The demodulated and channel-equalized data in the demodulation unit 132 may be output in the form of an MPEG-2 TS (Transport Stream) packet.

The network interface unit 133 may provide an interface for connecting the video display device 100 to a wired / wireless network including the Internet network. The network interface unit 133 can transmit or receive data to another user or another electronic device via the network connected thereto or another network linked to the connected network.

Further, it is possible to transmit some content data stored in the video display device 100 to another user registered in advance in the video display device 100 or a selected user or selected one of the other electronic devices.

The network interface unit 133 can access a predetermined web page through the connected network or another network linked to the connected network. That is, it is possible to access a predetermined web page through a network and transmit or receive data with the server.

The network interface unit 133 may receive content or data provided by the content provider or the network operator. That is, the network interface unit 133 can receive contents such as a movie, an advertisement, a game, a VOD, a broadcast signal, and related information provided from a content provider or a network provider through a network.

In addition, the network interface unit 133 can receive update information and an update file of the firmware provided by the network operator, and can transmit data to the Internet or a content provider or a network operator.

The network interface unit 133 can select and receive a desired application among applications open to the public via the network.

The external device interface unit 135 may receive an application or application list in an adjacent external device and may transmit the received application or application list to the control unit 170 or the storage unit 140.

The storage unit 140 stores programs for signal processing and control in the controller 170, and can store image-processed video, audio, or data signals.

The storage unit 140 may perform a function for temporarily storing video, audio, or data signals input from the external device interface unit 135 or the network interface unit 133, It may also store information about the image.

The storage unit 140 may store a list of applications or applications input from the external device interface unit 135 or the network interface unit 133. [

The video display device 100 may reproduce and provide a content file (a moving image file, a still image file, a music file, a document file, an application file, etc.) stored in the storage unit 140 to a user.

The user input interface unit 150 may transmit a signal input by the user to the control unit 170 or may transmit a signal from the control unit 170 to the user. For example, the user input interface unit 150 may be implemented by various communication methods such as Bluetooth, Ultra Wideband (WB), ZigBee, RF (Radio Frequency) communication, and infrared (IR) It is possible to receive and process control signals such as power on / off, channel selection, screen setting, and the like from the remote control device 200, or transmit control signals from the control unit 170 to the remote control device 200. [

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

The communication unit 160 may include one or more modules that enable the video display device 100 and the network or the video display device 100 and the server 700 to perform wired communication or wireless communication. The communication unit 160 may perform wired communication or wireless communication with the server 700 by performing wired communication or wireless communication with the gateway (not shown) or the relay unit 500.

For example, the communication unit 160 may include an Internet module for accessing the Internet, and may allow the video display device 100 to access the Internet through wired or wireless communication through the Internet module.

For example, the communication unit 160 may include a short-range communication module so that the video display device 100 can communicate wirelessly with other devices. The local communication module included in the communication unit 160 may be Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, WLAN (Wi-Fi), and Near Field Communication (NFC).

The video signal processed by the controller 170 may be input to the display unit 180 and displayed as an image corresponding to the video signal. The video signal processed by the controller 170 may be input to the external output device through the external device interface 135. [

The audio signal processed by the control unit 170 may be output to the audio output unit 185 through audio. The voice signal processed by the control unit 170 may be output to the external device through the external device interface unit 135. [

In addition, the control unit 170 can control the overall operation in the video display device 100. [

In addition, the control unit 170 may acquire user input through the user input interface unit 150. For example, the control unit 170 may obtain a user input value through the user input interface unit 150. Here, the user input value may mean the number of inputs to a specific button, the number of inputs to one direction of a specific wheel key, and the like.

Meanwhile, the control unit 170 can control the video display device 100 through a user command or an internal program input through the user input interface unit 150, and can connect to the network and display a list of applications or applications desired by the user And can be downloaded into the display device 100.

The control unit 170 can output the video or audio signal processed through the channel information selected by the user through the display unit 180 or the audio output unit 185.

The control unit 170 controls the operation of the external device through the external device interface unit 135 according to an external device video playback command received through the user input interface unit 150. For example, So that a video signal or a voice signal can be output through the display unit 180 or the audio output unit 185.

The control unit 170 may control the display unit 180 to display an image and may output the broadcast image input through the tuner 131 or the external input through the external device interface unit 135, The image input through the network interface unit or the image stored in the storage unit 140 may be displayed on the display unit 180. [ In this case, the image displayed on the display unit 180 may be a still image or a moving image, and may be a 2D image or a 3D image.

In addition, the controller 170 may control the content stored in the video display device 100, the received broadcast content, or the external input content input from the outside to be reproduced, and the content may be a broadcast video, an external input video, Files, still images, connected web screens, and document files.

The display unit 180 converts the video signal, the data signal, the OSD signal, the video signal, the data signal, and the like received from the external device interface unit 135 into R, G, and B signals, respectively, Signal can be generated.

Since the image display device 100 shown in FIG. 1 is only an embodiment of the present invention, Some of the illustrated components may be integrated, added, or omitted depending on the specifications of the image display device 100 actually implemented.

That is, two or more constituent elements may be combined into one constituent element, or one constituent element may be constituted by two or more constituent elements, if necessary. In addition, the functions performed in each block are intended to illustrate the embodiments of the present invention, and the specific operations and apparatuses do not limit the scope of the present invention.

1, the video display device 100 may include a tuner 131 and a demodulator 132 and may be connected to the network interface 133 or the external device interface 140. [ It is also possible to receive and reproduce an image through the display unit 135.

For example, the video display device 100 may be divided into an image processing device such as a set-top box for receiving broadcast signals or contents according to various network services, and a content playback device for playing back content input from the image processing device .

In this case, the image display method according to an embodiment of the present invention to be described below may be applied not only to the image display apparatus 100 as described with reference to FIG. 1, but also to the image processing apparatus such as the set- And an audio output unit 185. The audio output unit 185 may be an audio output unit or an audio output unit.

Next, a remote control apparatus according to an embodiment of the present invention will be described with reference to Figs. 5 to 5. Fig.

FIG. 5 is a block diagram of a remote control device according to an embodiment of the present invention, and FIG. 6 shows an example of an actual configuration of a remote control device according to an embodiment of the present invention.

5, the remote control device 200 includes a fingerprint recognition unit 210, a wireless communication unit 220, a user input unit 230, a sensor unit 240, an output unit 250, a power supply unit 260 A storage unit 270, a control unit 280, and a voice acquisition unit 290.

The wireless communication unit 220 transmits / receives signals to / from any one of the video display devices according to the embodiments of the present invention described above.

The remote control device 200 includes an RF module 221 capable of transmitting and receiving signals to and from the image display device 100 according to the RF communication standard and transmits and receives signals to and from the image display device 100 according to the IR communication standard An IR module 223 may be provided. In addition, the remote control device 200 may include a Bluetooth module 225 capable of transmitting and receiving signals with the image display device 100 according to the Bluetooth communication standard. The remote control apparatus 200 includes an NFC module 227 capable of transmitting and receiving signals to and from the image display apparatus 100 according to a NFC (Near Field Communication) communication standard. And a WLAN module 229 capable of transmitting and receiving signals to and from the video display device 100. [

The remote control device 200 transmits a signal including information on the motion of the remote control device 200 to the image display device 100 through the wireless communication unit 220.

The remote control device 200 can receive a signal transmitted from the video display device 100 through the wireless communication unit 220 and transmit the signal to the video display device 100 through the wireless communication unit 220, On / off, channel change, volume change, and the like.

The user input unit 230 may include a keypad, a button, a touch pad, a wheel key, or a touch screen. The user can input a command related to the image display device 100 to the remote control device 200 by operating the user input part 230. [ When the user input unit 230 includes a hard key button, the user can input a command related to the image display device 100 to the remote control device 200 through the push operation of the hard key button. This will be described with reference to FIG.

Referring to FIG. 6, the remote control apparatus 200 may include a plurality of buttons. The plurality of buttons include a fingerprint recognition button 212, a power button 231, a home button 232, a LIVE button 233, an external input button 234, a volume button 235, a voice recognition button 236, A button 237, a wheel key 238, and a cancel button 239. [

The fingerprint recognition button 212 may be a button for recognizing the fingerprint of the user. In one embodiment, the fingerprint recognition button 212 is capable of a push operation and may receive a push operation and a fingerprint recognition operation.

The power button 231 may be a button for turning on and off the image display device 100 and the external device.

The home button 232 may be a button for displaying a basic menu of the image display device 100. [

The LIVE button 233 may be a button for displaying a real time broadcast program.

The external input button 234 may be a button for displaying an image received from an external device.

The volume button 235 may be a button for controlling the audio output of the video display device 100.

The voice recognition button 236 may be a button for recognizing the voice of the user.

The channel button 237 may be a button for receiving a broadcast signal of a specific broadcast channel or a specific broadcast service.

The wheel key 238 may be a wheel-shaped key that can receive user input for more than one direction. For example, the wheel key 238 may be a wheel-shaped key that can receive user inputs in up, down, or up, down, left, and right directions. Further, the wheel key 238 may further include a direction key. Here, the user input for the up and down directions of the wheel key 238 is a user input for rotating the wheel key 238, and the user input for the left and right directions can be a user input for tilting the wheel key 238. [ Wheel key 238 may also receive a push input.

The LIVE button 297 may be a button for displaying a real time broadcast program.

5 is described again.

When the user input unit 230 has a touch screen, the user can touch a soft key of the touch screen to input a command related to the image display device 100 to the remote control device 200. [

In addition, the user input unit 230 may include various types of input means such as a scroll key, a jog key, and a touch pad that can be operated by the user, and the present invention is not limited to the scope of the present invention.

The sensor unit 240 may include a gyro sensor 241 or an acceleration sensor 243 and the gyro sensor 241 may sense information on the motion of the remote control device 200. [

For example, the gyro sensor 241 may sense information about the operation of the remote control device 200 on the basis of the x, y, and z axes, and the acceleration sensor 243 may sense the movement speed of the remote control device 200 And the like can be sensed. The remote control device 200 may further include a distance measuring sensor to sense a distance to the display unit 180 of the image display device 100. [

The output unit 250 may output an image or voice signal corresponding to the operation of the user input unit 235 or corresponding to the signal transmitted from the image display device 100. [ The user can recognize whether the user input unit 235 is operated or whether the video display device 100 is controlled through the output unit 250.

For example, the output unit 250 may include an LED module 251 that is turned on when the user input unit 230 is operated or a signal is transmitted and received between the image display device 100 and the image display device 100 through the wireless communication unit 220, An audio output module 255 for outputting sound, or a display module 257 for outputting an image.

Also, the power supply unit 260 supplies power to the remote control device 200, and if the remote control device 200 is not moved for a predetermined time, the power supply is interrupted, thereby reducing power waste. The power supply unit 260 may resume power supply when a predetermined key provided in the remote control device 200 is operated.

The storage unit 270 may store various types of programs, application data, and the like necessary for the control or operation of the remote control apparatus 200. [ If the remote control device 200 wirelessly transmits and receives signals through the image display device 100 and the RF module 221, the remote control device 200 and the image display device 100 transmit signals through a predetermined frequency band Send and receive.

The control unit 280 of the remote control device 200 stores information on a frequency band or the like capable of wirelessly transmitting and receiving a signal with the image display device 100 paired with the remote control device 200 in the storage unit 270 Can be referenced.

The control unit 280 controls various matters related to the control of the remote control device 200. [ The control unit 280 transmits a signal corresponding to the predetermined key operation of the user input unit 230 or a signal corresponding to the motion of the remote control device 200 sensed by the sensor unit 240, (100).

Also, the voice acquisition unit 290 of the remote control device 200 can acquire voice.

The voice acquisition unit 290 may include at least one microphone (not shown) to acquire voice through the included microphone.

The voice acquisition unit 290 may transmit the acquired voice to the control unit 280. [

Meanwhile, the video display device 100 according to the present invention can receive a broadcast signal from the antenna 300. FIG.

For example, the video display device 100 may receive a broadcast signal from the antenna 300 located at a distance from the video display device 100. For example, In one embodiment, the video display device 100 may be located within a home or office, and the antenna 300 may be located outside or outside the building.

The antenna 300 may transmit the received broadcast signal to the image display device 100. [

This will be described in detail with reference to FIG.

7 is a block diagram showing the configuration of an antenna according to an embodiment of the present invention.

Referring to FIG. 7, the antenna 300 may include an antenna module 310, a control module 330, a communication module 350, and a driving module 370.

The antenna module 310 may receive a broadcast signal.

For example, the antenna module 310 may receive a broadcast signal transmitted from the transmission tower 600.

For example, the antenna module 310 can receive broadcast signals of VHF (Very High Frequency) and UHF (Ultra High Frequency) bands.

The antenna module 310 may include various types of antennas.

For example, the antenna module 310 may include various types of antennas such as a Yagi Antenna, a Parabola Antenna, a Loop Antenna, and a Corner Antenna.

The antenna module 310 may transmit the received broadcast signal to the control module 330.

The control module 330 controls the overall operation of the antenna 300.

The control module 330 may transmit the received broadcasting signal to the video display device 100 through the communication module 350.

At this time, the control module 330 can convert the broadcasting signal received from the antenna module 310 into various formats and transmit the converted broadcasting signal to the video display device 100 in the converted format.

Specifically, the control module 330 may convert the transmitted broadcast signal into a converted transport stream and transmit the converted transport stream to the video display device 100. [ For example, the control module 330 may convert the transmitted broadcast signal into an MPEG-2 transport stream packet and transmit the MPEG-2 transport stream packet to the video display device 100.

Also, the control module 330 may encrypt the transmitted broadcast signal. Accordingly, the control module 330 may transmit the encrypted broadcast signal to the video display device 100.

The communication module 350 can communicate with the image display device 100.

For example, the communication module 350 can transmit data on the transmitted broadcast signal to the video display device 100 and receive data related to the operation of the antenna 300 transmitted from the video display device 100 have.

The communication module 350 can communicate with the image display device 100 through various communication methods. For example, the communication module 350 may be a Bluetooth ™, a Radio Frequency Identification (RFID), an Infrared Data Association (IrDA), a UWB (Ultra Wideband), a ZigBee, a NFC (Wireless-Fidelity), Wi-Fi Direct, and Wireless USB (Wireless Universal Serial Bus).

The driving module 370 can adjust the receiving direction of the broadcasting signal of the antenna module 310.

Specifically, the driving module 370 receives the control signal from the control module 330, and can adjust the reception direction of the broadcast signal of the antenna module 310 in accordance with the received control signal. Here, the broadcast signal receiving direction may include directions for the up, down, left, and right directions.

A method of operating the image display apparatus according to the present invention will be described with reference to FIG.

8 is a flowchart illustrating an operation method of an image display apparatus according to an exemplary embodiment of the present invention.

Referring to FIG. 8, the broadcast receiving unit 101 of the video display device 100 receives broadcast signals from a plurality of antennas (S101).

The broadcast receiver 101 can receive a broadcast signal received from the internal antenna 102 included in the broadcast receiver 101 and can receive the broadcast signal received from the antenna 300 and the external antenna 400 .

Each of the comparing unit 104 and the switching unit 105 may receive a broadcast signal received from at least one of the internal antenna 102, the antenna 300 and the external antenna 400. [

This will be described in detail with reference to Figs. 9 to 11. Fig.

9 is a diagram illustrating exemplary reception of a plurality of broadcast signals according to an exemplary embodiment of the present invention.

9, each of the comparing unit 104 and the switching unit 105 of the broadcast receiving unit 101 can receive broadcast signals received from the internal antenna 102 and the external antenna 400, respectively. Accordingly, the broadcast receiving unit 101 can receive a plurality of broadcast signals from the internal antenna 102 and the external antenna 400, which are a plurality of antennas.

10 is a diagram illustrating exemplary reception of a plurality of broadcast signals according to another embodiment of the present invention.

10, each of the comparing unit 104 and the switching unit 105 of the broadcast receiving unit 101 may receive broadcast signals received from the internal antenna 102 and the antenna 300, respectively. Specifically, each of the comparing unit 104 and the switching unit 105 can receive the broadcast signal received from the internal antenna 102 and receive the broadcast signal transmitted from the antenna 300 through the communication unit 103 . Accordingly, the broadcast receiving unit 101 can receive a plurality of broadcast signals from the built-in antenna 102 and the antenna 300, which are a plurality of antennas.

11 is a diagram illustrating an example of receiving a plurality of broadcast signals according to another embodiment of the present invention.

11, each of the comparing unit 104 and the switching unit 105 of the broadcast receiving unit 101 receives broadcast signals received from the internal antenna 102, the antenna 300, and the external antenna 400, respectively can do. Each of the comparison unit 104 and the switching unit 105 may receive the broadcast signal received from the internal antenna 102 and the external antenna 400 and may transmit the broadcast signal from the antenna 300 through the communication unit 103 It is possible to receive the broadcast signal. Accordingly, the broadcast receiving unit 101 can receive a plurality of broadcast signals from the built-in antenna 102, the antenna 300, and the external antenna 400, which are a plurality of antennas.

The video display device 100 may receive the broadcasting signal directly from the antenna 300 or receive the broadcasting signal through the repeater 500 when receiving the broadcasting signal from the antenna 300. [

This will be described with reference to Figs. 12 to 13. Fig.

FIG. 12 is a diagram illustrating transmission of broadcast signals of an antenna according to an embodiment of the present invention. Referring to FIG.

Referring to FIG. 12, the antenna 300 may transmit the received broadcast signal to the video display device 100 directly. Specifically, the communication module 350 of the antenna 300 can transmit the received broadcast signal to the communication unit 103 of the video display device 100. Accordingly, the video display device 100 can receive the broadcast signal received from the antenna 300 directly.

FIG. 13 is a diagram illustrating transmission of broadcast signals of an antenna according to another embodiment of the present invention. Referring to FIG.

Referring to FIG. 13, the antenna 300 may transmit the received broadcast signal to the repeater 500. Specifically, the communication module 350 of the antenna 300 may transmit the received broadcast signal to the repeater 500. And the repeater 500 can transmit the received broadcast signal to the communication unit 103 of the video display device 100. [ Accordingly, the video display device 100 can receive the broadcast signal received from the antenna 300 through the repeater 500. [

Referring back to FIG.

The comparison unit 104 of the broadcast receiving unit 101 compares reception sensitivities of the plurality of received broadcast signals (S103).

The comparing unit 104 may measure reception sensitivity of each of a plurality of broadcast signals received from at least one of the internal antenna 102, the antenna 300, and the external antenna 400.

For example, the comparison unit 104 can measure the reception sensitivity of each of a plurality of received broadcast signals in antenna gain units. The broadcast signal receiving sensitivity may be in units of dBi.

The comparison unit 104 of the broadcast receiving unit 101 selects a broadcast signal having the best reception sensitivity among a plurality of received broadcast signals based on the comparison result (S105).

The comparison unit 104 can select one broadcast signal having the best reception sensitivity among a plurality of received broadcast signals based on the comparison result of reception sensitivity of a plurality of broadcast signals.

The comparison unit 104 may transmit information on the selected broadcast signal to the switching unit 105. [

Meanwhile, the comparison unit 104 may be included in the control unit 170, and the control unit 170 may perform the operation of the comparison unit 104 described above.

The control unit 170 receives the broadcast signal from the antenna corresponding to the selected broadcast signal (S107).

Specifically, the control unit 170 can control the switching operation of the switching unit 105 to receive the broadcast signal from the antenna corresponding to the broadcast signal having the best reception sensitivity, which is selected by the comparison unit 104. [

For example, the comparison unit 104 can control the switching unit 105 to receive the selected broadcast signal with the highest reception sensitivity. Accordingly, the switching unit 105 can switch to receive a broadcast signal having the best reception sensitivity among a plurality of received broadcast signals. The switching unit 105 may transmit the received broadcasting signal to the amplifying unit 106 according to the switching operation. The broadcast receiving unit 101 receives a broadcast signal from an antenna corresponding to the broadcast signal having the best reception sensitivity among a plurality of broadcast signals received from the internal antenna 102, the antenna 300, and the external antenna 400, ).

Here, the comparison unit 104 may be included in the control unit 170, and the control unit 170 may control the switching operation of the switching unit 105 described above.

The control unit 170 operates based on the received broadcast signal (S109).

For example, the control unit 170 may display a broadcast service screen corresponding to the received broadcast signal on the display unit 180. The control unit 170 may output the broadcast service audio according to the received broadcast signal through the audio output unit 185.

Meanwhile, the video display device 100 according to the present invention can adjust the broadcast reception direction of the antenna 300 that receives a broadcast signal.

This will be described in detail with reference to FIGS. 14 to 17. FIG.

14 is a ladder diagram illustrating an operation method of an image display device according to another embodiment of the present invention.

Referring to FIG. 14, the controller 170 of the image display device 100 acquires position information on the position of the image display device 100 (S201).

In one embodiment, the controller 170 may obtain positional information on an area where the image display device 100 is located, based on a user input to the geographical information. For example, the control unit 170 obtains a ZIP code of a region where the video display device 100 is located from the user, and based on the obtained postal code, Location information can be obtained.

In another embodiment, the controller 170 may acquire positional information on an area where the image display device 100 is located through the network interface 133. [ For example, the controller 170 may acquire location information on an area where the video display device 100 is located based on an IP address (Internet Protocol address).

In another embodiment, the controller 170 may acquire position information on an area where the image display device 100 is located through a GPS module (not shown).

Here, the location information on the area where the video display device 100 is located may be the location information on the area where the antenna 300 is located.

The controller 170 of the video display device 100 transmits the acquired location information to the server 700 (S203).

The control unit 170 may transmit the location information obtained through the network interface unit 133 to the server 700.

Here, the server 700 may be a server that stores information on reception of broadcast signals. For example, the server 700 may be a server for storing broadcast reception information such as the DTV Reception Maps of the Federal Communications Commission (FCC).

The server 700 searches broadcast reception information corresponding to the acquired location information (S205).

The server 700 can search broadcast reception information corresponding to the location information transmitted from the video display device 100. [

Here, the broadcast reception information may include information on the position of the transmission tower 600, the distance to the transmission tower 600, and the direction to the transmission tower 600. The broadcasting reception information may include information on the type, intensity, and frequency band of the broadcasting signal transmitted by each of the plurality of transmission towers 600. In addition, the broadcast reception information may include information on a virtual channel included in the broadcast signal to be transmitted.

Accordingly, the broadcast reception information corresponding to the positional information includes at least one of a broadcast signal receivable at the corresponding position, a position of a transmission tower for transmitting a receivable broadcast signal, a strength of a receivable broadcast signal, a frequency band of a receivable broadcast signal, A corresponding broadcast service provider, and information on a channel included in a receivable broadcast signal.

The server 700 transmits the retrieved broadcast reception information to the video display device 100 (S207).

The control unit 170 of the video display device 100 displays a plurality of channel information corresponding to the received broadcast reception information on the display unit 180 (S209).

The control unit 170 can receive broadcast reception information through the network interface unit 133.

The control unit 170 may display the received broadcast reception information on the display unit 180. [

For example, the control unit 170 controls the display unit 180 based on the received broadcast reception information such as broadcast signal information receivable at the position of the video display device 100, transmission tower information for transmitting a receivable broadcast signal, A frequency band of a broadcast signal that can be received, a broadcast service provider information of a receivable broadcast signal, and information on a channel included in a receivable broadcast signal. Here, the information on the channel included in the broadcast signal may be information on the broadcast service included in the broadcast signal.

This will be described in detail with reference to FIG.

FIG. 15 is an exemplary view illustrating broadcast reception information display according to an embodiment of the present invention.

 15, the control unit 170 displays a map window 810 indicating the location of the video display device 100 on the display unit 180 and displays a broadcast reception information window 820 for broadcast reception information .

The control unit 170 may display a plurality of broadcast signals receivable at the position of the video display device 100 in the broadcast reception information window 820. [ For example, the control unit 170 may display the signal strength of each of a plurality of broadcast signals receivable in the broadcast reception information window 820, channel information included in a broadcast service provider, a broadcast signal, and frequency band information.

Referring again to FIG.

The control unit 170 obtains a user input for selecting one or more channels from the plurality of channel information included in the broadcast reception information displayed on the display unit 180 (S211).

The control unit 170 may obtain a user input for selecting one or more of the plurality of channel information included in the broadcast reception information displayed on the display unit 180 through the user input interface unit 150. [ The one or more channels selected here may be channels that the user wishes to view through the video display device 100. [

The control unit 170 calculates an antenna reception direction corresponding to the selected one or more channels based on the obtained user input (S213).

The control unit 170 may calculate the reception direction of the antenna 300 for receiving the selected one or more channels.

In one embodiment, the controller 170 may obtain the location of one or more transmission towers 600 that transmit broadcast signals corresponding to the selected one or more channels. The control unit 170 may calculate an antenna reception direction capable of receiving a broadcast signal for the selected channel based on the position of the at least one transmission tower 600 obtained. Accordingly, the controller 170 can calculate the antenna reception direction of the antenna 300 for one or more transmission towers 600 that transmit broadcasting signals corresponding to the selected one or more channels.

In another embodiment, the controller 170 may calculate an antenna reception direction for avoiding a condition that disturbs broadcasting reception between the transmission tower 600 and the antenna 300, based on the received broadcast reception information.

Meanwhile, the controller 170 may calculate the antenna reception direction for the entire area through the calculation of a part of the entire area where the antenna 300 can receive the broadcast signal, when calculating the reception direction of the antenna 300. [ Here, the entire area may mean the whole direction, and some areas may mean some directions.

Specifically, if the radiation pattern of the antenna 300 has a radiation pattern having an elliptical shape instead of Omni-Direction, the reception sensitivity of the broadcast signal with respect to the specific direction may be different from the reception sensitivity of the broadcast signal with respect to the other direction can be different. Accordingly, the controller 170 can calculate the receiving direction of the antenna 300 based on the receiving sensitivity of the broadcasting signal to the antenna 300 in a predetermined direction. The control unit 170 can calculate the antenna reception direction for the entire area through calculation of a part of the entire area where the antenna 300 can receive broadcast signals. Here, a part of the area may be referred to as a scan area, and the calculated antenna direction for the scan area may be the same as the antenna direction for the entire area.

This will be described with reference to Figs. 16 to 17. Fig.

FIG. 16 is an exemplary view for calculating a reception direction of an antenna corresponding to a transmission tower according to an embodiment of the present invention. FIG.

16, when the controller 170 calculates an antenna reception direction for receiving a broadcast signal transmitted from the first transmission tower 610 and the second transmission tower 620 based on the antenna 300, The transmission tower 620 can be symmetrically moved to be included in the scan area. Accordingly, the controller 170 can recognize that the second virtual transmission tower 625 is located at a position symmetric to the second transmission tower 620. The control unit 170 may calculate the antenna reception direction of the antenna 300 for the first transmission tower 610 and the second virtual transmission tower 625. Since the radiation pattern of the antenna 300 has an almost omnidirectional shape such as an elliptical shape, the controller 170 controls the antenna 300 of the antenna 300 based on the position of the transmission tower 600 included in the scan area, Even if the reception direction is calculated, the same result as that obtained by calculating the antenna reception direction of the antenna 300 based on the position of the transmission tower 600 included in the entire area can be calculated.

17 is an exemplary view of an antenna direction calculation corresponding to a transmission tower according to another embodiment of the present invention.

Referring to FIG. 17, the controller 170 receives an antenna reception direction for receiving a broadcast signal transmitted from the first transmission tower 610, the second transmission tower 620, and the third transmission tower 630, The second transmission tower 620 and the third transmission tower 630 may be symmetrically moved to be included in the scan area. Accordingly, the controller 170 recognizes that the second virtual transmission tower 625 is located at a position symmetric to the second transmission tower 620, and the third virtual transmission tower 625 is located at a position symmetric to the third transmission tower 630, It can be recognized that the transmission tower 635 is located. The controller 170 may calculate the antenna reception direction of the antenna 300 for the first transmission tower 610, the second virtual transmission tower 625, and the third virtual transmission tower 635. Since the radiation pattern of the antenna 300 has an almost omnidirectional shape such as an elliptical shape, the controller 170 controls the antenna 300 of the antenna 300 based on the position of the transmission tower 600 included in the scan area, Even if the reception direction is calculated, the same result as that obtained by calculating the antenna reception direction of the antenna 300 based on the position of the transmission tower 600 included in the entire area can be calculated.

On the other hand, the above description of the calculation of the antenna reception direction is not limited to this example. Accordingly, the control unit 170 can calculate the antenna reception direction through various methods according to the radiation pattern type of the antenna 300 and the user or designer's selection.

Referring again to FIG.

The control unit 170 of the video display device 100 transmits the reception direction information for the calculated antenna reception direction to the antenna 300 (S215).

The control unit 170 can transmit the reception direction information for the antenna reception direction calculated through the communication unit 103 to the antenna 300. [

The control unit 170 may also transmit the reception direction information for the antenna reception direction calculated through the network interface unit 133 or the user input interface unit 150 to the antenna 300. [

The control module 330 of the antenna 300 adjusts the reception direction of the broadcast signal of the antenna module 310 based on the received direction information (S217).

The control module 330 may receive the reception direction information transmitted from the image display device 100 through the communication module 350. [

The control module 330 can adjust the broadcast signal receiving direction of the antenna module 310 based on the received direction information.

In particular, the control module 330 may control the operation of the drive module 370. [ For example, the control module 330 can control the driving module 370 to adjust the reception direction of the broadcast signal of the antenna module 310. Accordingly, the driving module 370 can adjust the broadcasting signal receiving direction of the antenna module 310 in a direction corresponding to the received direction information.

The antenna module 310 of the antenna 300 receives the broadcast signal in the adjusted broadcast reception direction (S219).

The antenna module 310 can receive broadcast signals transmitted from a plurality of transmission towers 300 in the adjusted broadcast reception direction.

The antenna module 310 can receive a broadcast signal corresponding to the calculated antenna reception direction so that a plurality of broadcast signals received by the antenna module 310 include a broadcast signal corresponding to one or more channels selected in step S211 .

The control module 330 of the antenna 300 transmits the received broadcast signal to the video display device 100 through the communication module 350 (S221).

The control module 330 may transmit one or more broadcast signals received in the adjusted broadcast receiving direction to the communication unit 103 of the video display device 100 through the communication module 350. [

On the other hand, the control module 330 may convert the received broadcast signal into a converted transport stream and transmit the converted transport stream to the communication unit 103, as described above. In addition, the control module 330 may encrypt the received broadcast signal and transmit it to the communication unit 103.

The controller 170 of the video display device 100 operates based on the transmitted broadcast signal (S223).

The control unit 170 can receive the broadcast signal transmitted through the communication unit 103. [

Specifically, the communication unit 103 can receive the transmitted broadcast signal, and can transmit the received broadcast signal to the amplification unit 106. The amplification unit 106 amplifies the transmitted broadcast signal and can be transmitted to the control unit 170.

Meanwhile, the control unit 170 may directly transmit the received broadcast signal to the control unit 170.

The control unit 170 may operate based on the received broadcast signal.

For example, the control unit 170 may display a broadcast service screen corresponding to the received broadcast signal on the display unit 180. The control unit 170 may output the broadcast service audio according to the received broadcast signal through the audio output unit 185.

On the other hand, when the transmitted broadcast signal is encrypted, the control unit 170 can decode the broadcast signal. The control unit 170 may operate based on the decoded broadcast signal.

The present invention described above can be embodied as computer-readable codes on a medium on which a program is recorded. The computer readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of the computer readable medium include a hard disk drive (HDD), a solid state disk (SSD), a silicon disk drive (SDD), a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, , And may also be implemented in the form of a carrier wave (e.g., transmission over the Internet). In addition, the computer may include a controller 170 of the video display device. Accordingly, the above description should not be construed in a limiting sense in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

Claims (14)

A video display device for receiving a broadcast signal from a plurality of antennas,
A broadcast receiver for measuring a reception sensitivity of each of a plurality of broadcast signals received from the plurality of antennas and selecting a broadcast signal having the highest reception sensitivity among the plurality of broadcast signals based on reception sensitivity of each of the plurality of measured broadcast signals, ;
A display unit for displaying a screen corresponding to the received broadcast signal; And
And a control unit for displaying a screen corresponding to the broadcast signal on the display unit based on the selected broadcast signal
Video display device. The method according to claim 1,
Wherein the plurality of antennas includes a first antenna capable of adjusting a reception direction of the broadcast signal,
The control unit
Calculates a reception direction for increasing the reception sensitivity of the broadcast signal of the first antenna, and controls the first antenna to correspond to the calculated reception direction
Video display device. 3. The method of claim 2,
The control unit
Acquiring position information on an area where the image display device or the first antenna is located,
And acquires broadcast reception information including information on at least one transmission tower that transmits a broadcast signal to the located area based on the obtained location information
Video display device. 3. The method of claim 2,
The control unit
And displaying one or more channels included in one or more broadcast signals receivable in the location based on the obtained broadcast reception information,
Acquiring a user input for selecting at least one channel among the displayed one or more channels,
And calculating a reception direction of the first antenna for receiving a broadcast signal corresponding to the selected one or more channels
Video display device. The method according to claim 1,
The broadcast receiver
A comparator for measuring a reception sensitivity of each of a plurality of broadcast signals received from the plurality of antennas and selecting a broadcast signal having the highest reception sensitivity among the plurality of broadcast signals based on reception sensitivity of each of the plurality of measured broadcast signals, Wow,
And a switching unit for transmitting the selected broadcasting signal among the plurality of received broadcasting signals to the control unit
Video display device. 6. The method of claim 5,
The broadcast receiver
A built-in antenna built in the image display device and receiving the broadcast signal;
An amplifying unit for amplifying the selected broadcasting signal,
And a communication unit for receiving the received broadcast signal from the first antenna
Video display device. The method according to claim 1,
The plurality of antennas
And at least one of a first antenna, a second antenna built in the image display device, and a third antenna electrically connected to the image display device
Video display device. A method of operating a video display device for receiving broadcast signals from a plurality of antennas,
Measuring reception sensitivity of each of a plurality of broadcast signals received from the plurality of antennas;
Selecting a broadcast signal having the highest reception sensitivity among the plurality of broadcast signals based on reception sensitivity of each of the plurality of measured broadcast signals; And
And displaying a screen corresponding to the broadcast signal based on the selected broadcast signal
A method of operating a video display device. 9. The method of claim 8,
Calculating a reception direction of the first antenna capable of adjusting a reception direction of the broadcast signal among the plurality of antennas to increase the reception sensitivity; And
And controlling the reception direction of the first antenna to correspond to the calculated reception direction
A method of operating a video display device. 10. The method of claim 9,
The step of calculating the reception direction for increasing the reception sensitivity of the first antenna
Obtaining location information on an area where the image display device or the first antenna is located;
And acquiring broadcast reception information including information on at least one transmission tower for transmitting a broadcast signal to the located area based on the obtained location information
A method of operating a video display device. 11. The method of claim 10,
The step of calculating the reception direction for increasing the reception sensitivity of the first antenna
Displaying one or more channels included in one or more broadcast signals receivable in the located area based on the obtained broadcast reception information,
Obtaining a user input for selecting at least one of the displayed one or more channels;
And calculating a reception direction of the first antenna for receiving a broadcast signal corresponding to the selected one or more channels
A method of operating a video display device. 9. The method of claim 8,
The step of selecting a broadcast signal having the highest reception sensitivity among the plurality of broadcast signals
Measuring reception sensitivity of each of a plurality of broadcast signals received from the plurality of antennas;
And selecting a broadcast signal having the highest reception sensitivity among the plurality of broadcast signals based on reception sensitivity of each of the plurality of measured broadcast signals
A method of operating a video display device. 13. The method of claim 12,
Further comprising amplifying the selected broadcast signal
A method of operating a video display device. 9. The method of claim 8,
The plurality of antennas
And at least one of a first antenna, a second antenna built in the image display device, and a third antenna electrically connected to the image display device
A method of operating a video display device.

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