KR102399705B1 - Display device and method for controlling the same - Google Patents

Abstract

The display device according to an embodiment of the present invention is a display device in which a voice recognition language is set as a second language other than the first language used in a service target country, and searches for specific content according to a first command and a voice signal receiving unit for receiving a voice signal for, a network interface unit capable of communicating with an external server, a display unit, and a control unit, wherein the control unit transmits the voice signal received through the voice signal receiving unit corresponding to the first language controlling the network interface unit to transmit to a first external server and a second external server corresponding to the second language, receiving the first text corresponding to the voice signal from the first external server, and receiving the first text corresponding to the voice signal The network interface unit is controlled to receive a second text from the second external server, and a search result of the specific content corresponding to at least one of the received first text and the second text is displayed on the display unit.

Description

Display device and its control method {DISPLAY DEVICE AND METHOD FOR CONTROLLING THE SAME}

The present invention relates to a display device and a method for controlling the same.

The display device is, for example, an apparatus having a function of receiving and processing a broadcast image that can be viewed by a user. The display device displays, on a display, a broadcast selected by a user from among broadcast signals transmitted from, for example, a broadcast station. Currently, the trend of broadcasting worldwide is converting from analog broadcasting to digital broadcasting.

Digital broadcasting refers to broadcasting that transmits digital image and audio signals. Compared to analog broadcasting, digital broadcasting is strong against external noise, so data loss is small, it is advantageous for error correction, and provides a high resolution and clear screen. Also, unlike analog broadcasting, digital broadcasting can provide interactive services.

In order to use digital broadcasting including various contents, the performance of the display device has been improved and the functions have been diversified, and through the improved performance of the display device, not only receive a video signal from a broadcasting station to watch a broadcast, but also play a game using various applications. , music listening, Internet shopping, etc., it is possible to perform various functions through the display device.

Meanwhile, in the prior art, a specific content may be searched using a voice uttered by a user. However, when the voice recognition language is set to a second language other than the first language used in the country of the region where the display device is sold or the country of the region where the display device is installed, the user uses the first language to There was a problem that it could not find the .

In addition, when a voice recognition language is set as the first language and a specific content is searched using the first language, the search result of the specific content desired by the user can be output only when the specific content is searched through the correct pronunciation. That is, when a foreigner utters a voice for searching for a specific content using the first language with an incorrect pronunciation, there is a problem in that an incorrect result is output.

Accordingly, there is an urgent need to develop a display device and a control method thereof that solve the problems of the prior art display device.

SUMMARY OF THE INVENTION The present invention aims to solve the above and other problems. The technical problem to be achieved by an embodiment of the present invention is that when a specific content is searched using a user's voice, even if the display device receives a voice signal uttered by a foreigner's incorrect pronunciation, the specific content the user wants to find is properly searched for Its purpose is to make it possible.

The technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. will be able

The display device according to an embodiment of the present invention is a display device in which a voice recognition language is set as a second language other than the first language used in a service target country, and searches for specific content according to a first command and a voice signal receiving unit for receiving a voice signal for, a network interface unit capable of communicating with an external server, a display unit, and a control unit, wherein the control unit transmits the voice signal received through the voice signal receiving unit corresponding to the first language controlling the network interface unit to transmit to a first external server and a second external server corresponding to the second language, receiving the first text corresponding to the voice signal from the first external server, and receiving the first text corresponding to the voice signal The network interface unit is controlled to receive a second text from the second external server, and a search result of a specific content corresponding to at least one of the received first text and the second text is displayed on the display unit.

In addition, the method of controlling a display device according to an embodiment of the present invention is a method of controlling a display device in which a voice recognition language is set as a second language other than the first language used in a service target country, in which communication with an external server receiving a voice signal for searching for content through a voice signal receiving unit according to a first command and receiving the voice signal received through the voice signal receiving unit with a first external server corresponding to the first language and the transmitting to a second external server corresponding to a second language, receiving a first text corresponding to the voice signal from the first external server, and receiving a second text corresponding to the voice signal from the second external server and displaying a search result of specific content corresponding to at least one of the received first text and second text.

The technical solutions obtainable in the present invention are not limited to the above-mentioned solutions, and other solutions that are not mentioned are clearly to those of ordinary skill in the art to which the present invention belongs from the description below. can be understood

The effects of the display device and the control method thereof according to the present invention will be described as follows.

According to an embodiment of the present invention, even when the voice recognition language is set to a second language other than the first language used in the country of the region where the display device is sold or the country of the region where the display device is installed, the user There is an effect that a specific content can be found using the first language.

According to an embodiment of the present invention, even if a foreigner utters a voice for searching for a specific content using the first language with an incorrect pronunciation, there is an effect that the user can properly search for a specific content.

The effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art from the description below.

1 is a diagram schematically illustrating an example of an entire broadcasting system including a display device according to an embodiment of the present invention.
FIG. 2 is a block diagram illustrating the display device of FIG. 1 .
3 is an internal block diagram of the control unit shown in FIG. It will be described with reference to FIGS. 3 and 2 as follows.
4 is a diagram for describing a process in which any one of display devices communicates with third devices according to embodiments of the present invention.
5 is an internal block diagram of a remote control apparatus for controlling any one of display devices according to embodiments of the present invention.
6 is a flowchart illustrating an example of a method of searching for specific content through a voice uttered by a user in a display device according to an embodiment of the present invention.
7 is a diagram illustrating an example of a method of setting a voice recognition language in a display device according to an embodiment of the present invention.
FIG. 8 is a diagram illustrating an example of a method of searching for a specific content using a voice uttered by a user in a display device according to an embodiment of the present invention.
9 and 10 are diagrams for explaining an example of a method of displaying a search result of a specific content on a screen using a voice uttered by a user in a display device according to an embodiment of the present invention.
11 and 12 are diagrams for explaining another example of a method of displaying a search result of a specific content on a screen using a voice uttered by a user in a display device according to an embodiment of the present invention.
13 is a diagram illustrating another example of a method of setting a voice recognition language in a display device according to an embodiment of the present invention.
14 is a diagram illustrating another example of a method of searching for a specific content using a voice uttered by a user in a display device according to an embodiment of the present invention.
15 and 16 are diagrams for explaining another example of a method of displaying a search result of a specific content on a screen using a voice uttered by a user in a display device according to an embodiment of the present invention.
17 and 18 are diagrams for explaining another example of a method of displaying a search result of a specific content on a screen using a voice uttered by a user in a display device according to an embodiment of the present invention.
19 is a flowchart for explaining an example of a method of displaying a search result of a specific content according to the priority of text received from at least one external server in the display device according to an embodiment of the present invention.
20 is a diagram for explaining an example of a method of displaying a search result of a specific content according to the priority of text received from at least one external server in the display device according to an embodiment of the present invention.
21 is a diagram for explaining another example of a method of displaying a search result of a specific content according to the priority of text received from at least one external server in the display device according to an embodiment of the present invention.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

The suffixes “module” and “unit” for components used in the following description are simply given in consideration of the ease of writing this specification, and the “module” and “unit” may be used interchangeably.

On the other hand, the display device described herein is, for example, an intelligent display device in which a computer support function is added to a broadcast reception function, and is faithful to a broadcast reception function and an Internet function is added, so that a handwritten input device, a touch screen, or a space A more user-friendly interface such as a remote control can be provided. In addition, it is connected to the Internet and a computer with the support of a wired or wireless Internet function, so that functions such as e-mail, web browsing, banking, or games can also be performed. A standardized general-purpose OS may be used for these various functions.

Accordingly, in the display device described in the present invention, various user-friendly functions can be performed since various applications can be freely added or deleted, for example, on a general-purpose OS kernel. The display device may be, more specifically, for example, a network TV, HBBTV, or smart TV, and may be applied to a smart phone in some cases.

Further, embodiments of the present invention will be described in detail with reference to the accompanying drawings and the contents described in the accompanying drawings, but the present invention is not limited or limited by the embodiments.

The terms used in the present specification have been selected as widely used general terms as possible while considering the functions in the present invention, but these may vary depending on the intention or custom of a person skilled in the art or the advent of new technology. Also, in specific cases, there are terms arbitrarily selected by the applicant, and in this case, the meaning will be described in the description of the relevant invention. Therefore, it is intended to clarify that the terms used in this specification should be interpreted based on the actual meaning of the terms and the contents of the entire specification, rather than the names of simple terms.

1 is a diagram schematically illustrating an example of an entire broadcasting system including a display device according to an embodiment of the present invention.

As shown in FIG. 1 , the entire broadcasting system including a display device according to an embodiment of the present invention includes a content provider (CP) 10 , a service provider (SP) 20 , and a network It can be divided into a provider (Network Provider; NP) (30) and HNED (40). The HNED 40 corresponds, for example, to the client 100 which is a display device according to an embodiment of the present invention. The client 100 corresponds to a display device according to an embodiment of the present invention, and the display device is, for example, a network TV, a smart TV, an IPTV, or the like.

The content provider 10 produces and provides various types of content. As shown in FIG. 1 , the content provider 10 includes a terrestrial broadcaster, a cable system operator (SO) or multiple system operator (MSO), a satellite broadcaster, and Internet broadcast transmission. Internet broadcaster and the like may be exemplified.

In addition, the content provider 10 may provide various applications in addition to broadcast content.

The service provider 20 may provide contents provided by the content provider 10 as a service package. For example, the service provider 20 of FIG. 1 may package the first terrestrial broadcast, the second terrestrial broadcast, cable MSO, satellite broadcast, various Internet broadcasts, applications, and the like and provide them to the user.

Meanwhile, the service provider 20 may provide a service to the client 100 using a unicast or multicast method.

Here, the unicast method is a method in which data is transmitted 1:1 between one sender and one receiver.

For example, in the case of the unicast method, when the receiver requests data from the server, the server may transmit data to the receiver according to the request.

And, the multicast method is a method of transmitting data to a plurality of receivers in a specific group. For example, the server may transmit data to a plurality of pre-registered receivers at once. For such multicast registration, an Internet Group Management Protocol (IGMP) protocol or the like may be used.

The network provider 30 may provide a network for providing a service to the client 100 .

Here, the client 100 may be provided with a service by establishing a Home Network End User (HNED).

As a means for protecting the content transmitted from the display device system as described above, conditional access or content protection may be used. As an example for such conditional access or content protection, methods such as CableCARD and DCAS (Downloadable Conditional Access System) may be used.

Meanwhile, the client 100 may also provide content through a network. In this case, contrary to the above, conversely, the client 100 may be a content provider, and the content provider 10 may receive content from the client 100 . In the case of such a design, there is an advantage that an interactive content service or data service is possible.

FIG. 2 is a block diagram illustrating the display device of FIG. 1 .

Referring to FIG. 2 , the display device 100 according to an embodiment of the present invention includes a broadcast receiving unit 105 , an external device interface unit 135 , a storage unit 140 , a user input interface unit 150 , and a voice It may include a signal receiving unit 160 , a control unit 170 , a display unit 180 , an audio output unit 185 , a power supply unit 190 , and a photographing unit (not shown).

Here, the broadcast receiving unit 105 may include a tuner 110 , a demodulator 120 , and a network interface unit 130 .

Of course, if necessary, it is also possible to design the tuner 110 and the demodulator 120 but not the network interface unit 130, and vice versa. It is also possible to design the demodulator 120 not to include it.

In this case, the tuner 110 selects an RF broadcast signal corresponding to a channel selected by the user or all channels stored in advance among RF (Radio Frequency) broadcast signals received through the 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 the selected RF broadcast signal 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 both a digital broadcast signal and 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, 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 and converts them into an intermediate frequency signal or a baseband image or audio signal. there is.

Meanwhile, according to an embodiment of the present invention, the RF broadcast signal received through the antenna may include at least EPG (Electronic Program Guide) data. The EPG data may be data including broadcast information such as a title, start time, end time, type, and title of a broadcast program aired on each channel. For example, EPG data may include ATSC-Program and System Information Protocol (ATSC-PSIP) information in the case of the ATSC method, and may include DVB-Service Information (DVB-SI) information in the case of the DVB method. can

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, for example, 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, to perform trellis decoding, deinterleaving, and reading. Soloman decryption can be performed.

For example, when the digital IF signal output from the tuner 110 is DVB, the demodulator 120 performs coded orthogonal frequency division modulation (COFDMA) demodulation, for example. 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, etc., the controller 170 outputs an image to the display unit 180 , and outputs an audio to the audio output unit 185 .

The external device interface unit 135 may connect an external device and the display device 100 . To this end, the external device interface unit 135 may include an A/V input/output unit (not shown) or a wireless communication unit (not shown).

The external device interface unit 135 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 135 transmits an image, audio, or data signal input from the outside through a connected external device to the control unit 170 of the 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 135 may include an A/V input/output unit (not shown) or a wireless communication unit (not shown).

The A/V input/output unit includes a USB terminal, a CVBS (Composite Video Banking Sync) terminal, a component terminal, an S-video terminal (analog), 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.

The wireless communication unit may perform short-range wireless communication with other electronic devices. The display device 100 includes, for example, Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and Digital Living Network Alliance (DLNA). It can be network-connected with other electronic devices according to communication standards, such as.

Also, the external device interface unit 135 may be connected to 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 135 may receive an application or an application list in an adjacent external device and transmit it to the control unit 170 or the storage unit 140 .

The network interface unit 130 provides an interface for connecting the display device 100 to a wired/wireless network including an Internet network. The network interface unit 130 may include, for example, an Ethernet terminal for connection with a wired network, and for connection with a wireless network, for example, a wireless LAN (WLAN) (Wi- Fi), Wireless broadband (Wibro), World Interoperability for Microwave Access (Wimax), High Speed Downlink Packet Access (HSDPA) communication standards, etc. may be used.

The network interface unit 130 may transmit or receive data with another user or another electronic device through the connected network or another network linked to the connected network. In particular, some content data stored in the display device 100 may be transmitted to another user registered in advance in the display device 100 , or to a selected user or a selected electronic device among other electronic devices.

Meanwhile, the network interface unit 130 may access a predetermined web page through the connected network or another network linked to the connected network. That is, by accessing a predetermined web page through a network, it is possible to transmit or receive data with a corresponding server. In addition, content or data provided by a content provider or network operator may be received. That is, it is possible to receive content such as a movie, advertisement, game, VOD, and broadcast signal and information related thereto from a content provider or a network provider through a 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.

Also, the network interface unit 130 may select and receive a desired application from among applications open to the public through a network.

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 from the external device interface unit 135 or the network interface unit 130 . Also, the storage unit 140 may store information about a predetermined broadcast channel through a channel storage function.

Also, the storage unit 140 may store an application or an application list input from the external device interface unit 135 or the network interface unit 130 .

The storage unit 140 is, for example, a flash memory type, a hard disk type, a multimedia card micro type, or a card type memory (eg, SD or XD). memory, etc.), RAM, and ROM (EEPROM, etc.) may include at least one type of storage medium. The display device 100 may reproduce content files (movie files, still image files, music files, document files, application files, etc.) stored in the storage unit 140 and provide them to the user.

2 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 may perform power on/off, channel selection, and screen 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. A control signal such as setting may be received and processed, or a control signal from the control unit 170 may be transmitted to the remote control device 200 .

Also, for example, 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 setting value to the control unit 170 .

Also, for example, the user input interface unit 150 transmits a control 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 voice signal receiver 160 may receive a voice signal. The voice signal receiver 160 may directly receive an external voice signal including a microphone and convert it into an electrical voice signal, or may receive an electrical voice signal from an external device. In the latter case, the voice signal receiving unit 160 may be implemented as at least one of the network interface unit 130 , the external device interface unit 135 , and the user input interface unit 150 . According to an embodiment of the present invention, , the storage unit 140 may store in advance a voice recognition program for converting the received voice signal into text when a voice signal is received. According to an embodiment of the present invention, when it is difficult to convert the received voice signal into text with only the voice recognition program stored in the storage unit 140 , the controller 170 converts the received voice signal to the network interface unit 130 . The operation of the display device may be controlled by transmitting the text to the external server and using at least one text corresponding to the text recognition result transmitted from the external server.

The control unit 170 demultiplexes an input stream through the tuner 110 or the demodulator 120 or the external device interface unit 135 or processes the demultiplexed signals to output 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 unit 180 and displayed as an image corresponding to the image signal. Also, the image signal processed by the control unit 170 may be input to an external output device through the external device interface unit 135 .

The audio signal processed by the control unit 170 may be audio output to the audio output unit 185 . In addition, the audio signal processed by the control unit 170 may be input to an external output device through the external device interface unit 135 .

Although not shown in FIG. 2 , the controller 170 may include a demultiplexer, an image processor, and the like. This will be described later with reference to FIG. 3 .

In addition, the controller 170 may control overall operations in the display device 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 display device 100 according to a user command input through the user input interface unit 150 or an internal program. In particular, by accessing a network, a user can download a desired application or an application list into the display device 100 .

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 control unit 170 allows the user-selected channel information to be output through the display unit 180 or the audio output unit 185 together with the processed image or audio signal.

As another example, the controller 170 may be configured to receive an external device image playback command received through the user input interface unit 150 from an external device input through the external device interface unit 135, for example, a camera or a camcorder. , an image signal or an audio signal may be output through the display unit 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 135 , an image input through a network interface unit, or an image stored in the storage unit 140 . , can be controlled to 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.

Also, the controller 170 may control to reproduce the content. In this case, the content may be content stored in the display device 100 , received broadcast content, or external input content input from the outside. The content may be at least one of a broadcast image, an external input image, an audio file, a still image, a connected web screen, and a document file.

Meanwhile, in relation to an embodiment of the present invention, the controller 170 may control to display the home screen on the display unit 180 in response to a movement input to the home screen.

The home screen may include a plurality of card objects classified for each content source. The card object includes a card object representing a thumbnail list of broadcast channels, a card object representing a broadcast guide list, a card object representing a broadcast reservation list or a recording list, and a media list in the display device or in an apparatus connected to the display device. It may include at least one of the card objects. In addition, it may further include at least one of a card object representing a list of connected external devices and a card object representing a list related to a call.

In addition, the home screen may further include an application menu including at least one executable application item.

On the other hand, if there is a card object movement input, the controller 170 may move and display the card object or control the display unit 180 to move and display a card object not displayed on the display unit 180 . .

Meanwhile, when a predetermined card object is selected from among a plurality of card objects in the home screen, the controller 170 may control to display an image corresponding to the card object on the display unit 180 .

Meanwhile, the controller 170 may control to display a received broadcast image and an object indicating information related to the broadcast image in the card object displaying the broadcast image. In addition, the size of the broadcast image can be controlled to be fixed by lock setting.

On the other hand, the controller 170 controls to display a setup object for setting at least one of image setting in the display device, audio setting, screen setting, reservation setting, remote control device pointer setting, and network setting in the home screen. can

Meanwhile, the controller 170 may control to display an object for login, help, or exit items in one area of the home screen.

Meanwhile, the controller 170 may control to display an object indicating the number of all card objects or the number of card objects displayed on the display unit 180 among all card objects in one area of the home screen.

Meanwhile, when a card object name within a predetermined card object is selected from among the card objects displayed on the display unit 180 , the controller 170 may control to display the card object as a full screen on the display unit 180 .

On the other hand, when an incoming call is received from the connected external device or the display device, the controller 170 focuses and displays a call-related card object among a plurality of card objects, or moves a call-related card object into the display unit 180 . can be controlled to display.

Meanwhile, when entering the application view item, the controller 170 may control the display device 100 to display an application or an application list downloadable from an internal or external network.

The controller 170 may control to install and drive an application downloaded from an external network together with various user interfaces. In addition, an image related to an executed application may be controlled to be displayed on the display unit 180 by a user's selection.

The display unit 180 converts the image signal, the data signal, the OSD signal processed by the controller 170, or the image signal and the data signal received from the external device interface unit 135 into R, G, and B signals, respectively. generate a drive signal.

The display unit 180 may be a PDP, LCD, OLED, a flexible display, a three-dimensional display, or the like.

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

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 with various types of speakers.

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 display device 100 . . The signal sensed by the sensing unit (not shown) may be transmitted to the control unit 170 through the user input interface unit 150 .

Meanwhile, a photographing unit (not shown) for photographing the user may be further provided. Image information captured by the photographing unit (not shown) may be input to the control unit 170 .

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 display device 100 .

In particular, to supply power to the control unit 170 that can be implemented in the form of a system on chip (SOC), the display unit 180 for image display, and the audio output unit 185 for audio output. can

To this end, the power supply unit 190 may include a converter (not shown) that converts AC power into DC power. Meanwhile, for example, when the display unit 180 is implemented as a liquid crystal panel including a plurality of backlight lamps, an inverter (not shown) capable of PWM operation may be further provided for luminance variable or dimming driving. may be

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 Bluetooth (Bluetooth), Radio Frequency (RF) communication, infrared (IR) communication, Ultra Wideband (UWB), ZigBee, or the like.

Also, the remote control device 200 may receive an image, audio, or data signal output from the user input interface unit 150 , and display it on the remote control device 200 or output voice or vibration.

The above-described display device 100 is a fixed type, and includes digital broadcasting of the ATSC system (8-VSB system), digital broadcasting of the DVB-T system (COFDM system), digital broadcasting of the ISDB-T system (BST-OFDM system), and the like. It may be a digital broadcast receiver capable of receiving at least one.

On the other hand, the display device 100 does not include the tuner 110 and the demodulator 120 shown in FIG. 2 , unlike the one shown in FIG. 2 , and the network interface unit 130 or the external device interface unit 135 . Through , the video content may be received and played back.

3 is an internal block diagram of the control unit shown in FIG. It will be described with reference to FIGS. 3 and 2 as follows.

The controller 170 according to an embodiment of the present invention includes a demultiplexer 310, an image processor 320, an OSD generator 340, a mixer 350, a frame rate converter 355, and a formatter ( 360) may be included. In addition, it may further include a voice processing unit (not shown) and a data processing unit (not shown).

The demultiplexer 310 demultiplexes an input stream. For example, when MPEG-2 TS is input, it can be demultiplexed and separated into video, audio and data signals, respectively. Here, the stream signal input to the demultiplexer 310 may be a stream signal output from the tuner 110 , the demodulator 120 , or the external device interface unit 135 .

The image processing unit 320 may perform image processing of the demultiplexed image signal. To this end, the image processing unit 320 may include an image decoder 325 and a scaler 335 .

The image decoder 325 decodes the demultiplexed image signal, and the scaler 335 performs scaling to output the resolution of the decoded image signal on the display unit 180 . The video decoder 325 may include decoders of various standards.

For example, if the demultiplexed video signal is an MPEG-2 coded video signal, it may be decoded by an MPEG-2 decoder.

Also, for example, when the demultiplexed video signal is an encoded video signal of an H.264 standard according to a Digital Multimedia Broadcasting (DMB) method or DVB-H, it may be decoded by an H.264 decoder.

Meanwhile, the image signal decoded by the image processing unit 320 is input to the mixer 350 .

The OSD generator 340 generates an OSD signal according to a user input or by itself. For example, based on a control signal from the user input interface unit 150 , a signal for displaying various types of information as graphics or text on the screen of the display unit 180 may be generated. The generated OSD signal may include various data such as a user interface screen of the display device 100 , various menu screens, widgets, and icons.

For example, the OSD generator 340 may generate a signal for displaying broadcast information based on a caption of a broadcast image or EPG.

The mixer 350 may mix the OSD signal generated by the OSD generator 340 and the decoded image signal image-processed by the image processor 220 . The mixed signal is provided to a formatter 360 . Since the decoded broadcast image signal or the external input signal and the OSD signal are mixed, the OSD can be displayed overlaid on the broadcast image or the external input image.

A frame rate converter (FRC) 355 may convert a frame rate of an input image. For example, convert a frame rate of 60Hz to 120Hz or 240Hz. When converting the frame rate of 60 Hz to 120 Hz, it is possible to insert the same first frame or insert a third frame predicted from the first frame and the second frame between the first frame and the second frame. When converting a frame rate of 60 Hz to 240 Hz, it is possible to insert three more identical frames or insert three predicted frames. On the other hand, it is also possible to maintain the input frame rate without a separate conversion.

The formatter 360 receives the output signal of the frame rate converter 355 , and changes the format of the signal to be suitable for the display unit 180 and outputs it. For example, R, G, and B data signals may be output, and these R, G, and B data signals may be output as low voltage differential signaling (LVDS) or mini-LVDS.

Meanwhile, the voice processing unit (not shown) in the control unit 170 may perform voice processing of the demultiplexed voice signal. To this end, the voice processing unit (not shown) may include various decoders.

When the demultiplexed voice signal is an coded voice signal, the voice processing unit (not shown) in the controller 170 may decode it. For example, the demultiplexed audio signal may be decoded by an MPEG-2 decoder, an MPEG 4 decoder, an AAC decoder, or an AC-3 decoder.

In addition, the voice processing unit (not shown) in the control unit 170 may process a base (Base), a treble (Treble), volume control, and the like.

A data processing unit (not shown) in the control unit 170 may perform data processing of the demultiplexed data signal. For example, when the demultiplexed data signal is an encoded data signal, it can be decoded. The encoded data signal may include EPG (Electronic Program Guide) data including broadcast information such as start time and end time of a broadcast program aired on each channel. For example, EPG data may include ATSC-Program and System Information Protocol (ATSC-PSIP) information in the case of the ATSC method, and may include DVB-Service Information (DVB-SI) information in the case of the DVB method. can

The ATSC-PSIP information or DVB-SI information may be information included in the header (4 bytes) of the above-described stream, that is, MPEG-2 TS.

Meanwhile, since the block diagram of the controller 170 shown in FIG. 3 is a block diagram for an embodiment of the present invention, it is possible to add other modules or omit some of the illustrated modules according to the needs of those skilled in the art.

4 is a diagram for describing a process in which any one of display devices communicates with third devices according to embodiments of the present invention.

As shown in FIG. 4 , the display device 100 according to an embodiment of the present invention may communicate with a broadcasting station 210 , a network server 220 , or an external device 230 .

The display device 100 may receive a broadcast signal including an image signal transmitted from the broadcast station 210 . The display device 100 may process an image signal, an audio signal, or a data signal included in the broadcast signal to be suitable for output from the display device 100 . The display device 100 may output an image or audio based on the processed image signal.

Meanwhile, according to an embodiment of the present invention, the broadcast signal may include at least EPG data. The information included in the EPG data may be information on program characteristics such as channel number, program title, start time, end time, elapsed time, remaining time, subject, and brief description of program content.

Meanwhile, the display device 100 may communicate with the network server 220 . The network server 220 is a device capable of transmitting and receiving signals to and from the display device 100 through an arbitrary network. For example, the network server 220 may be a mobile phone terminal that can be connected to the display device 100 through a wired or wireless base station. Also, the network server 220 may be a device capable of providing content to the display device 100 through an Internet network. The content provider may provide content to the display device 100 using the network server 220 .

Meanwhile, according to an embodiment of the present invention, when receiving a voice signal from a user, the display device 100 may transmit the voice signal to the network server 220 . In addition, the display device 100 may receive at least one text corresponding to the voice signal through the network server 220 . For example, the network server 220 may transmit a voice recognition result of the received voice signal to the display device 100 .

Meanwhile, the display device 100 may communicate with the external device 230 . The external device 230 is a device capable of directly transmitting and receiving signals to and from the display device 100 by wire or wirelessly. For example, the external device 230 may be a media storage device or a playback device used by the user. That is, the external device 230 corresponds to, for example, a camera, a DVD or Blu-ray player, a personal computer, and the like.

The broadcasting station 210 , the network server 220 , or the external device 230 may transmit a signal including an image signal to the display device 100 . The display device 100 may display an image based on an image signal included in an input signal. Also, the display device 100 may transmit a signal transmitted from the broadcasting station 210 or the network server 220 to the display device 100 to the external device 230 . Also, a signal transmitted from the external device 230 to the display device 100 may be transmitted to the broadcasting station 210 or the network server 220 . That is, the display device 100 directly reproduces the content included in the signal transmitted from the broadcasting station 210 , the network server 220 , and the external device 230 on the display device 100 , as well as a function of delivering it. also includes

5 is an internal block diagram of a remote control apparatus for controlling any one of display devices according to embodiments of the present invention.

Referring to the drawings, the remote control device 200 includes a wireless communication unit 225 , a user input unit 235 , a sensor unit 240 , a voice signal receiving unit 245 , an output unit 250 , and a power supply unit 260 . , a storage unit 270 , and a control unit 280 may be included.

The wireless communication unit 225 transmits/receives a signal to and from any one of the display devices according to the embodiments of the present invention described above. Among display devices according to embodiments of the present invention, one display device 100 will be described as an example.

In the present embodiment, the remote control apparatus 200 may include an RF module 221 capable of transmitting and receiving a signal to and from the display device 100 according to an RF communication standard. In addition, the remote control apparatus 200 may include an IR module 223 capable of transmitting and receiving a signal to and from the display device 100 according to an IR communication standard.

In the present embodiment, the remote control apparatus 200 transmits a signal containing information about the movement of the remote control apparatus 200 to the display device 100 through the RF module 221 .

Also, the remote control apparatus 200 may receive a signal transmitted by the display device 100 through the RF module 221 . In addition, the remote control apparatus 200 may transmit a command related to power on/off, channel change, volume change, etc. to the display device 100 through the IR module 223 as necessary.

The user input unit 235 may include a keypad, a button, a touch pad, or a touch screen. A user may input a command related to the display device 100 to the remote control apparatus 200 by manipulating the user input unit 235 . When the user input unit 235 includes a hard key button, the user may input a command related to the display device 100 to the remote control apparatus 200 through a push operation of the hard key button. When the user input unit 235 includes a touch screen, the user may input a command related to the display device 100 to the remote control apparatus 200 by touching a soft key of the touch screen. In addition, the user input unit 235 may include various types of input means that the user can operate, such as a scroll key or a jog key, and this embodiment does not limit the scope of the present invention.

The sensor unit 240 may include a gyro sensor 241 or an acceleration sensor 243 .

The gyro sensor 241 may sense information regarding the movement of the remote control device 200 .

For example, the gyro sensor 241 may sense information about the operation of the remote control device 200 based on x, y, and z axes. The acceleration sensor 243 may sense information about the moving speed of the remote control device 200 . On the other hand, it may further include a distance measuring sensor, whereby the distance to the display unit 180 can be sensed.

The voice signal receiver 245 may receive a voice signal. The voice signal receiver 245 may directly receive an external voice signal including a microphone and convert it into an electrical voice signal.

According to an embodiment of the present invention, a voice signal received through the voice signal receiving unit 245 is transmitted to any one of the display devices according to the embodiments of the present invention described above through the wireless communication unit 225 . can Specifically, the received voice signal may be transmitted to the display device 100 through the RF module 221 .

The output unit 250 may output an image or audio signal corresponding to a manipulation of the user input unit 235 or a signal transmitted from the display device 100 . Through the output unit 250 , the user may recognize whether the user input unit 235 is manipulated or whether the display device 100 is controlled.

For example, the output unit 250 includes an LED module 251 that is turned on when the user input unit 235 is manipulated or a signal is transmitted and received with the display device 100 through the wireless communication unit 225, and a vibration module 253 that generates vibration. ), a sound output module 255 for outputting sound, or a display module 257 for outputting an image may be provided.

The power supply unit 260 supplies power to the remote control device 200 . The power supply unit 260 may reduce power consumption by stopping the power supply when the remote control device 200 does not move for a predetermined period of time. 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 and application data required for control or operation of the remote control device 200 . If the remote control apparatus 200 wirelessly transmits and receives signals through the display device 100 and the RF module 221 , the remote control apparatus 200 and the display device 100 transmit and receive signals through a predetermined frequency band. . The control unit 280 of the remote control apparatus 200 stores and references information about a frequency band in which a signal can be wirelessly transmitted and received with the display device 100 paired with the remote control apparatus 200 in the storage unit 270 . can do.

The controller 280 controls all matters related to the control of the remote control device 200 . The control unit 280 transmits a signal corresponding to a predetermined key operation of the user input unit 235 or a signal corresponding to the movement of the remote control apparatus 200 sensed by the sensor unit 240 to the display device ( 100) can be transmitted.

Hereinafter, embodiments related to a control method that can be implemented in the display device configured as described above will be described with reference to the accompanying drawings. It is apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention.

Hereinafter, a method of searching for a specific content through a voice uttered by a user in the display device 100 according to an embodiment of the present invention will be described with reference to FIGS. 6 to 21 .

6 is a flowchart illustrating an example of a method of searching for specific content through a voice uttered by a user in a display device according to an embodiment of the present invention.

The controller 170 may receive a voice signal corresponding to the voice uttered by the user in order to search for a specific content according to the first command (S610).

For example, the first command may be a command to receive a voice signal for searching for a specific content through the voice signal receiver 160 of the display device 100 . Specifically, when a signal corresponding to a specific key input of the remote control device 200 is received through the user input interface 150 , the controller 170 activates the microphone included in the voice signal receiver 160 . can In addition, the activated microphone may receive a voice uttered by a user (eg, a voice uttered by a user to search for a specific content) and convert it into an electrical voice signal.

As another example, the first command may be a command to receive a voice signal for searching for a specific content through the voice signal receiver 245 of the remote control device 200 . Specifically, the controller 280 of the remote control device 200 may activate a microphone included in the voice signal receiver 245 in response to a specific key input of the remote control device 200 . In addition, the activated microphone of the remote control device 200 may receive a voice uttered by a user and convert it into an electrical voice signal. In addition, the controller 280 of the remote control apparatus 200 may control the wireless communication unit 235 to transmit the voice signal to the display device 100 . Accordingly, the display device 100 may receive the voice signal through the user input interface unit 150 .

The controller 170 may recognize whether the voice recognition language is set as the second language instead of the first language used in the service target country ( S620 ). Here, the service target country may mean a country in a region in which the display device 100 is sold or a country in a region in which the display device 100 is installed. In addition, the voice recognition language may be preset to a language used in the service target country from the time of shipment, and the user may change the voice recognition language to another language.

When the user sets the voice recognition language to a second language different from the first language used in the service target country, the controller 170 may recognize that the voice recognition language is set to a second language different from the first language. can

For example, if it is assumed that Korea is a service target country, that is, a country in a region in which the display device 100 is sold or a country in a region in which the display device 100 is installed, Korean, which is the official language used in Korea, is the first language may be, and the second language may be a language different from Korean (eg, English).

As another example, if it is assumed that the service target country, that is, the country of the region where the display device 100 is sold or the country of the region where the display device 100 is installed is the United States, English, the official language used in the United States, is the first language, and the second language may be a language other than English (eg, Korean).

When recognizing that the voice recognition language is set as the first language used in the service target country (S620, No), the control unit 170 transmits the received voice signal to the first language through the network interface unit 130 The network interface unit 130 may be controlled to transmit to the first external server corresponding to the language (S630). Here, the first external server may be a server that receives a voice signal and converts it into text in the first language. For example, assuming that the first language is Korean, the first external server corresponding to Korean may convert the received voice signal into Korean text.

The first external server may store characteristic information indicating when a person who speaks a language different from the first language pronounces text in the first language.

When transmitting the received voice signal to the first external server, the controller 170 may also transmit information indicating that the voice recognition language is set as a first language used in a service target country. Accordingly, the first external server may recognize that the voice recognition language is set as the first language and convert the voice signal into text of the first language without using the characteristic information.

The control unit 170 may control the network interface unit 130 to receive the first text corresponding to the voice signal from the first external server (S640).

The controller 170 may control the display unit 180 to display a search result of a specific content corresponding to the first text received from the first external server (S650).

On the other hand, when recognizing that the voice recognition language is set to a second language different from the first language used in the service target country (S620, Yes), the controller 170 transmits the received voice signal to the network interface unit ( 130), the network interface unit 130 may be controlled to transmit to a first external server corresponding to the first language and a second external server corresponding to the second language (S660). Here, the reason for transmitting the voice signal not only to the second external server corresponding to the second language set as the voice recognition language but also to the first external server corresponding to the first language is that the foreigner uses the voice recognition language as the second language. This is because there is a case in which a specific content is searched using the first language even when it is set.

The first external server corresponding to the first language may be a server that receives a voice signal and converts it into text in the first language. The first external server may store characteristic information indicating when a person who speaks a language different from the first language pronounces text in the first language.

When transmitting the received voice signal to the first external server, the controller 170 may also transmit information indicating that the voice recognition language is set as the second language. Accordingly, upon receiving the voice signal from the first external server, it is recognized that the voice recognition language is set to the second language instead of the first language, and a person using the second language becomes the first language The voice signal may be converted into text using characteristic information indicated when a language is pronounced. For example, if it is assumed that the first language is Korean and the second language is English, the first external server may After receiving the voice signal, it may be recognized that the voice recognition language is set to English. In addition, the first external server may convert the received voice signal into Korean text by using characteristic information indicated when an American pronounces Korean. Therefore, even if the first external server receives a Korean voice signal uttered by an American who does not speak Korean with incorrect pronunciation, the first external server can convert the received voice signal into Korean according to the correct pronunciation. There will be.

Meanwhile, the second external server corresponding to the second language may be a server that receives a voice signal and converts it into text in the second language. For example, assuming that the second language is English, the second external server corresponding to English may convert the received voice signal into English text. Here, the reason for transmitting the voice signal to the second external server is that there is a case where a user wants to search for a specific content using the second language.

The control unit 170 receives the first text corresponding to the voice signal from the first external server and operates the network interface unit 130 to receive the second text corresponding to the voice signal from the second external server. can be controlled (S670). Here, the first text includes text in the first language corresponding to the voice recognition result of the voice signal, and the second text includes text in the second language corresponding to the voice recognition result of the voice signal can do. For example, assuming that the first language is Korean and the second language is English, the first text includes a Korean text corresponding to a voice recognition result of the voice signal, and the second text includes the voice English text corresponding to the speech recognition result of the signal may be included.

The controller 170 may control the display 180 to display a search result of a specific content corresponding to at least one of the received first text and the received second text (S680). Specifically, the controller 170 displays the search result of the specific content corresponding to the first text on a first area on the screen, and displays the search result of the specific content corresponding to the second text on the second area on the screen. The display unit 180 may be controlled to display on the .

According to an embodiment, the controller 170 determines the priority of the first text and the second text according to a preset condition, and assigns the first text and the second text to the text having a higher priority. The display unit 180 may be controlled to display the corresponding search result of the specific content. A detailed description thereof will be described later in more detail with reference to FIGS. 19 to 21 .

According to an embodiment, the controller 170 may control the display unit 180 to display the received first text and the received second text together with the search result. This will be described later in more detail with reference to FIGS. 9, 10, 15 and 16 .

According to an embodiment, the controller 170 may include a first graphical user interface (GUI) for confirming a search result of a specific content corresponding to the first text and the second text, and the first text and the second text The display unit 180 may be controlled to display a second GUI for confirming a search result of a specific content corresponding to each. This will be described later in more detail with reference to FIGS. 11, 12, 17 and 18 .

Meanwhile, according to an embodiment, the control unit 170 may convert the voice signal into text in the first language or the second language through a voice recognition program previously stored in the storage unit 140 . Here, the voice recognition program may be a program for converting the received voice signal into text. However, when it is difficult to convert the received voice signal into text only with the voice recognition program stored in the storage unit 140 , the controller 170 transmits the received voice signal to at least one external device through the network interface unit 130 . The operation of the display device may be controlled using at least one text transmitted to the server and corresponding to the text recognition result transmitted from the external server. Specifically, when receiving a simple command (eg, a command to change the volume) from the user as a voice signal, the controller 170 converts the voice signal into text through the voice recognition program, and the converted text may be recognized, and a specific command corresponding to the recognized text may be performed. However, when receiving a complex command (eg, a command to search for a specific content) from the user as a voice signal, the controller 170 cannot convert the voice signal into text only with the voice recognition program, so that the external The network interface unit 130 may be controlled to transmit the voice signal to the server.

Meanwhile, according to an embodiment, when the voice recognition language is set to a second language different from the first language, the controller 170 transmits the voice signal only to the second external server. ) can also be controlled. In addition, when receiving the second text corresponding to the voice signal from the second external server and meeting a preset condition (eg, when there is no search result for specific content corresponding to the second text), the The network interface unit 130 may be controlled to transmit the voice signal to the first external server as well to receive the first text from the first external server.

According to the present embodiment, even when the user sets the voice recognition language to a language other than the language used in the service target country of the display device 100, corresponding to the search for specific content being broadcast in the service target country There is an effect that the specific content can be searched by uttering a voice in a language used in the service target country.

Hereinafter, with reference to FIGS. 7 to 12 , when the user-designated country is Korea and the voice recognition language is set to English in the display device 100 according to an embodiment of the present invention, specific content is displayed through the user's voice. I will explain how to search. And, when the user-designated country is the United States and the voice recognition language is set to Korean in the display device 100 according to an embodiment of the present invention with reference to FIGS. 13 to 18 , a specific content is searched for through the user's voice Let me explain how to do it.

7 is a diagram illustrating an example of a method of setting a voice recognition language in a display device according to an embodiment of the present invention.

For convenience of description of the present embodiment, it is assumed that the service target country of the display device 100 is Korea and will be described below.

Referring to FIG. 7A , when a signal corresponding to a specific key input of the remote control device 200 is received through the user input interface unit 150, the control unit 170 displays the menu bar 700 on the screen. The display unit 180 may be controlled to be displayed on the screen. In addition, the control unit 170 displays the language setting menu 710 according to a command for selecting an icon 701 performing a function of outputting a language setting menu from among the icons included in the menu bar 700 . 180 can be controlled.

The language setting menu 710 includes a first icon 711 for setting a language of text displayed on the menu, a second icon 712 for setting a language of audio data output through audio, and a speech recognition language. At least one of a third icon 713 and a fourth icon 714 for setting the language of the keyboard output through the screen may be output.

Referring to FIG. 7B, the controller 170 selects the third icon 713 from among at least one icon included in the menu 710 for setting the language in FIG. 7A. According to a command, the display unit 180 may be controlled to display a menu 720 for setting a voice recognition language. The user may set not only Korean, which is a language used as an official language in Korea, which is the service target country, but also a language used in other countries, as the voice recognition language through the menu 720 . For example, when the user wants to set the speech recognition language to English, when the user selects an area 721 corresponding to English from the menu 720 for setting the speech recognition language, the speech recognition language is set to English can be set.

Meanwhile, according to the present invention, when the user sets the voice recognition language to English and utters a voice for searching for specific content in Korean, the control unit 170 displays the search results in Korean as well as the search results in English. The display unit 180 may be controlled. This will be described in detail with reference to FIG. 8 .

8 is a diagram illustrating an example of a method of searching for specific content using a user's voice in a display device according to an embodiment of the present invention. With respect to FIG. 8, content overlapping with that described with reference to FIG. 7 will not be described again, and will be mainly described below with respect to differences.

For convenience of description of the present embodiment, it is assumed that the service target country of the display device 100 is Korea and the voice recognition language is set to English. And, it is assumed that the user wants to search for a specific content called “Infinite Challenge” with a title in Korean, which is the language of the service target country, through a voice recognition function. The controller 170 selects the specific content according to the first command. A voice signal may be received corresponding to a voice uttered by the user (“infinite challenge”) to search for.

For example, the first command may be a command to receive a voice signal for searching for a specific content through the voice signal receiver 160 of the display device 100 . Specifically, when the first signal corresponding to a specific key input of the remote control device 200 is received through the user input interface unit 150 , the control unit 170 receives the microphone included in the voice signal receiving unit 160 . can be activated. In addition, the activated microphone may receive a voice uttered by the user (eg, “hand-free challenge”) and convert it into an electrical voice signal.

As another example, the first command may be a command to receive a voice signal for searching for a specific content through the voice signal receiver 245 of the remote control device 200 . Specifically, the controller 280 of the remote control device 200 may activate a microphone included in the voice signal receiver 245 in response to a specific key input of the remote control device 200 . In addition, the activated microphone of the remote control device 200 may receive a voice uttered by a user (eg, “handless challenge”) and convert it into an electrical voice signal. In addition, the controller 280 of the remote control apparatus 200 may control the wireless communication unit 235 to transmit the voice signal to the display device 100 . Accordingly, the display device 100 may receive the voice signal through the user input interface unit 150 .

The controller 170 may recognize whether the second language other than the first language used in the service target country is set as the voice recognition language. Here, since the first language is Korean and the second language is set to English, the controller 170 may recognize that the second language other than the first language is set as the voice recognition language.

The controller 170 recognizes that the voice recognition language is set to English rather than Korean used in Korea, which is a service target country, and transmits the voice signal to a first external server corresponding to Korean and a second corresponding to English. 2 It is possible to control the network interface unit 130 to transmit to an external server. Here, the voice signal is transmitted not only to the second external server corresponding to English set as the voice recognition language, but also to the first external server corresponding to Korean. The reason is that an American may set the speech recognition language to English and search for specific content using Korean. The first external server may be a server that converts the received voice signal into Korean text. The first external server may store characteristic information indicating when a person who speaks a language different from the first language pronounces text in the first language.

When transmitting the received voice signal to the first external server, the controller 170 may also transmit information indicating that the voice recognition language is set to English instead of Korean.

When the first external server receives the voice signal, it recognizes that the voice recognition language is set to English rather than Korean, and uses specific information indicated when an English-speaking person pronounces Korean. A voice signal can be converted into text. Accordingly, the first external server may recognize the Korean text uttered with the correct pronunciation even if an American utters the Korean text with an slurred pronunciation. For example, even if the first external server receives a voice signal in which an American pronounces "infinite challenge" as "muhan challenge", the pre-stored characteristic information (eg, vowel) when an American pronounces Korean "Muhan Challenge" can be recognized as an "infinite challenge" using characteristic information for pronouncing the vowel 'a' close to the vowel 'ae', specific information for pronouncing the vowel 'eo' close to the vowel 'fe', etc.). In addition, the first external server may convert the voice signal into text corresponding to “infinite challenge”.

Meanwhile, the second external server may be a server that converts the received voice signal into English text. For example, if the received voice signal is "Handless Challenge", the second external server converts the received voice signal to English text.

(eg "More John"). That is, since “Muhan Challenge” is not English, the received voice signal may be converted into “More John,” which is a text corresponding to an English word having similar pronunciation. As mentioned above, "More John" does not correspond to the specific content the user intended to search for ("Infinite Challenge").

The control unit 170 receives the first text corresponding to the voice signal from the first external server and operates the network interface unit 130 to receive the second text corresponding to the voice signal from the second external server. can be controlled Here, the first text may include a Korean text corresponding to the voice recognition result of the voice signal, and the second text may include an English text corresponding to the voice recognition result of the voice signal. For example, the control unit 170 may receive from the first external server “infinite challenge” which is a first text corresponding to the voice signal, and receive a second text corresponding to the voice signal from the second external server. The network interface unit 130 may be controlled to receive “More John”.

The controller 170 may search for specific content corresponding to at least one of the received first text and the received second text.

For example, the controller 170 extracts EPG (Electronic Program Guide) data included in a broadcast signal received through the tuner 110 , and uses the extracted EPG data to obtain the first text and the second text. The specific content corresponding to at least one may be searched for. Here, the EPG data includes a channel number, a title of a program being broadcast or scheduled to be broadcast on the channel, a start time of the program, an end time of the program, an elapsed time of the currently broadcast program, and a remaining time of the currently broadcast program , may include at least one of the contents of the program. Specifically, the controller 170 is configured to search for specific content corresponding to the received first text “Infinite Challenge” and the received second text “More John” using the EPG data extracted from the broadcast signal. can

As another example, the control unit 170 may search for the specific content corresponding to at least one of the first text and the second text through the network interface unit 130 . Specifically, the control unit 170 may control the network interface unit 130 to search the Internet for specific content corresponding to the received first text “Infinite Challenge” and the received second text “More John”. can

The control unit 170 searches for the specific content corresponding to at least one of the first text and the second text using the EPG data included in the broadcast signal, while searching for the specific content through the network interface unit 130 . The specific content corresponding to at least one of a text and the second text may be searched for. That is, the control unit 170 may search for the specific content through the network interface unit 130 while searching for the specific content using the EPG data, and if the specific content is not searched using the EPG data, the network interface The specific content may be searched for through the unit 130 . However, the present invention is not limited thereto.

The controller 170 may control the display 180 to display a search result of a specific content corresponding to at least one of the received first text and the received second text. Specifically, the controller 170 displays the search result of the specific content corresponding to the first text on the first area 810 on the screen 800, and displays the search result of the specific content corresponding to the second text. The display unit 180 may be controlled to display on the second area 820 on the screen 800 .

For example, when only a broadcast program having a title corresponding to the first text “Infinite Challenge” is included in the EPG data and there is no broadcast program having a title corresponding to the second text “More John” , the control unit 170 may control the display unit 180 to display information on a broadcast program corresponding to the first text on the first area 810 as a search result. Here, the search result may include a thumbnail image of a broadcast program called “Infinite Challenge”. However, according to an embodiment, the controller 170 may control the display 180 so that the EPG information of the program is displayed on the first area 810 .

As another example, when the EPG data includes a broadcast program having a title corresponding to the first text “Infinite Challenge” and a broadcast program having a title corresponding to the second text “More John”, the controller Reference numeral 170 displays information on the broadcast program "Infinite Challenge" as a search result in the first area 810, and retrieves information on the broadcast program "More John" as a search result in the second area ( The display unit 180 may be controlled to display on the 820 .

As another example, when there are search results for the first text “Infinite Challenge” and the second text “More John” on the Internet, the controller 170 searches for the first text “Infinite Challenge” A result (eg, an Internet address, a thumbnail image of a video, etc.) is displayed in the first area 810, and a search result (eg, an Internet address, a thumbnail of the video) of "More John", which is the second text, is displayed. image, etc.) may be controlled to be displayed on the second area 820 .

As another example, when there is no search result of the first text “Infinite Challenge” on the Internet and only the search result of the second text “More John” exists, the controller 170 controls the “More John” The display unit 180 may be controlled so that the search result of . If a program is included and a search result of "More John", which is the second text, exists on the Internet, the controller 170 retrieves information about the broadcast program "Infinite Challenge" as a search result in the first area The display unit 180 may be displayed on 810 , and the display unit 180 may be controlled to display the search result of “More John”, which is the second text, on the second area 820 .

Meanwhile, the controller 170 may control the display unit 180 to display the received first text and the received second text on a predetermined area on the screen 800 . Accordingly, the user may check the first text and the second text output on the screen 800 to determine which text was used to search.

According to an embodiment, the controller 170 includes a first GUI 1010 for checking only a search result of a specific content corresponding to the second text among the first text and the second text, and the first text and the second text. The display unit 180 may be controlled to display a second GUI 1020 for checking all search results of specific content corresponding to each of the two texts on the screen 800 .

The control unit 170 controls the display unit 180 so that a search result of a specific content corresponding to the second text is displayed on a predetermined area on the screen 800 according to a command for selecting the first GUI 1010 . controllable, and according to a command to select the second GUI 1020 , a search result of a specific content corresponding to each of the first text and the second text is displayed to be displayed on a predetermined area on the screen 800 . The unit 180 can be controlled. This will be described later in more detail with reference to FIGS. 11 and 12 .

Conventionally, when the voice recognition language is set to a second language other than the first language used in the country of the region where the display device is sold or the country of the region where the display device is installed, the user uses the first language to specify There was a problem that the content could not be found. In addition, when a voice recognition language is set as the first language and a specific content is searched using the first language, the search result of the specific content desired by the user can be output only when the specific content is searched through the correct pronunciation. That is, when a foreigner utters a voice for searching for a specific content using the first language with an incorrect pronunciation, there is a problem in that an incorrect result is output. However, according to the present embodiment, even if the user sets the voice recognition language as a second language other than the first language used in the country of the region in which the display device is sold or the country of the region in which the display device is installed, the user may set the first language to find specific content. In addition, according to this embodiment, when the user sets the voice recognition language as the second language and searches for specific content using the first language, accurate search results can be output even if the first language is uttered with incorrect pronunciation. there is.

Meanwhile, according to the present invention, the controller 170 displays a search result of a specific content corresponding to the selected text on the screen according to a command to select any one of the first text and the second text displayed on the screen. The display unit 180 may be controlled to do so. This will be described in more detail with reference to FIGS. 9 and 10 .

9 and 10 are diagrams for explaining an example of a method of displaying a search result of a specific content on a screen using a voice uttered by a user in a display device according to an embodiment of the present invention. With reference to FIGS. 9 and 10 , the content overlapping with those described with reference to FIGS. 7 and 8 will not be described again, but will be described below focusing on differences.

For convenience of description of the present embodiment, it is assumed that the service target country of the display device 100 is Korea and the voice recognition language is set to English. And, it is assumed that the user wants to search for a specific content called “Infinite Challenge” having a title in Korean, which is the language of the service target country, through the voice recognition function.

According to the present embodiment, the control unit 170, according to the first command, a voice signal for searching for a specific content (eg, a voice uttered by a user to search for a specific content (eg, “infinite challenge”) ) may be controlled to the voice signal receiver 160 to receive a voice signal converted into an electrical signal). Since the voice recognition language is set to English, not Korean, which is used in Korea, which is the service target country, the control unit 170 transmits the voice signal received through the voice signal receiver to the first external server corresponding to the Korean language and the English language. The network interface unit 130 may be controlled to transmit to a second external server corresponding to . In addition, the control unit 170 receives a first text (eg, text "infinite challenge") corresponding to the voice signal from the first external server, and receives a second text (eg, text "infinite challenge") corresponding to the voice signal. , the text "More John") may be controlled by the network interface unit 130 to receive from the second external server. The controller 170 may control the display 180 to display a search result of a specific content corresponding to at least one of the received first text and second text. In this case, the controller 170 may control the display 180 to display the first text and the second text together with the search result. For example, the controller 170 may control the display 180 to display “infinite challenge” and “More John” together with the search result.

Referring to FIG. 9 , in response to a command for selecting an area 910 in which the first text is displayed, the controller 170 displays a search result of a specific content corresponding to the first text in a predetermined area 830 on the screen. The display unit 180 may be controlled to be displayed. For example, in response to a command to select an area 910 in which the first text “infinite challenge” is displayed, the controller 170 may only search results of specific content corresponding to the first text “infinite challenge”. The display unit 180 may be controlled to be displayed on a predetermined area 830 on the screen.

When the area 910 in which the first text is displayed is selected, the controller 170 is configured to display the area 910 in which the first text is displayed to be highlighted to indicate that the first text is selected. can control Accordingly, the user may recognize that the first text has been selected.

According to the present embodiment, when the user wants to check only the search result corresponding to the first text among the search results corresponding to the first text and the second text, the first text is selected through a simple command to select the first text. 1 There is an advantage that only search results corresponding to text can be checked.

Referring to FIG. 10 , in response to a command for selecting an area 920 in which the second text is displayed, the controller 170 displays a search result of a specific content corresponding to the second text in a predetermined area 830 on the screen. The display unit 180 may be controlled to be displayed. For example, in response to a command to select an area 920 in which the second text "More John" is displayed, the controller 170 may only search results of specific content corresponding to the first text "More John". The display unit 180 may be controlled to be displayed on a predetermined area 830 on the screen.

When the area 920 in which the second text is displayed is selected, the controller 170 is configured to display the area 920 in which the second text is displayed to be highlighted in order to indicate that the second text is selected. can control Accordingly, the user may recognize that the first text has been selected.

According to this embodiment, when the user wants to check only the search result corresponding to the second text among the search results of the specific content corresponding to the first text and the second text, a simple command to select the second text is given. There is an advantage that only a search result corresponding to the second text can be checked through the second text.

Meanwhile, according to the present invention, the control unit 170 controls the display unit 180 to output only a search result of a specific content corresponding to a text of a language set as a voice recognition language through a command for selecting a specific GUI output on the screen. Alternatively, the display unit 180 may be controlled to output a search result of a specific content corresponding to a text of a language set as a voice recognition language and a language of a service target country. This will be described in more detail with reference to FIGS. 11 and 12 .

11 and 12 are diagrams for explaining another example of a method of displaying a search result of a specific content on a screen using a voice uttered by a user in a display device according to an embodiment of the present invention. With respect to FIGS. 11 and 12 , the content overlapping with those described with reference to FIGS. 7 and 8 will not be described again, but will be described below focusing on differences.

For convenience of description of the present embodiment, it is assumed that the service target country of the display device 100 is Korea and the voice recognition language is set to English. And, it is assumed that the user wants to search for a specific content called “Infinite Challenge” having a title in Korean, which is the language of the service target country, through the voice recognition function.

According to the present embodiment, the control unit 170, according to the first command, a voice signal for searching for a specific content (eg, a voice uttered by a user to search for a specific content (eg, “infinite challenge”) ) may be controlled to the voice signal receiver 160 to receive a voice signal converted into an electrical signal). Since the voice recognition language is set to English, not Korean, which is used in Korea, which is the service target country, the control unit 170 transmits the voice signal received through the voice signal receiver to the first external server corresponding to the Korean language and the English language. The network interface unit 130 may be controlled to transmit to a second external server corresponding to . In addition, the control unit 170 receives a first text (eg, text "infinite challenge") corresponding to the voice signal from the first external server, and receives a second text (eg, text "infinite challenge") corresponding to the voice signal. , the text "More John") may be controlled by the network interface unit 130 to receive from the second external server. The controller 170 may control the display 180 to display a search result of a specific content corresponding to at least one of the received first text and second text.

According to an embodiment, the controller 170 may include a first GUI 1010 for checking a search result of a specific content corresponding to the second text among the first text and the second text, and the first text and the second text. The display unit 180 may be controlled to display a second GUI 1020 for confirming a search result of a specific content corresponding to each of the two texts. The controller 170 may control the display unit 180 so that the first GUI 1010 and the second GUI 1020 are displayed together with the search result, and before the search result is displayed, the first GUI The display unit 180 may be controlled to display 1010 and the second GUI 1020 .

Referring to FIG. 11 , the controller 170 displays a search result of a specific content corresponding to the second text in a predetermined area 830 on the screen according to a command to select the first GUI 1010 . The unit 180 can be controlled. For example, in response to a command to select the first GUI 1010 , the controller 170 may only search for a specific content corresponding to the second text “More John” in a predetermined area 830 on the screen. The display unit 180 may be controlled to display on the .

According to this embodiment, when the user wants to perform a search only in the language set as the voice recognition language, the search result can be output only in the language set as the voice recognition language by selecting the first GUI 1010 . .

Referring to FIG. 12 , in response to a command for selecting the second GUI 1020 , the controller 170 displays a search result of a specific content corresponding to the first text and a search result of a specific content corresponding to the second text. The display unit 180 may be controlled to display on the screen. Specifically, the controller 170 may control the display unit 180 to display a search result of a specific content corresponding to the first text “infinite challenge” on the first area 810 on the screen, and The display unit 180 may be controlled to display a search result of a specific content corresponding to the 2 text “More John” on the second area 820 of the screen.

According to this embodiment, even after the user selects the first GUI 1010 and the search result of the specific content corresponding to the second text is displayed, only a simple command to select the second GUI 1020 There is an advantage in that a search result of a specific content corresponding to the text and a search result of a specific content corresponding to the second text can be output again. In addition, according to the present embodiment, there is an advantage that the user can select the second GUI 1010 to output both the first text and the search results of a specific content corresponding to the second text.

13 is a diagram illustrating another example of a method of setting a voice recognition language in a display device according to an embodiment of the present invention.

For convenience of description of the present embodiment, it is assumed that the service target country of the display device 100 is the United States and will be described below.

Referring to (a) of FIG. 13 , when a signal corresponding to a specific key input of the remote control device 200 is received through the user input interface unit 150 , the control unit 170 displays the menu bar 700 . The display unit 180 may be controlled to be displayed on the screen. In addition, the control unit 170 displays the language setting menu 710 according to a command for selecting an icon 701 performing a function of outputting a language setting menu from among the icons included in the menu bar 700 . 180 can be controlled.

The language setting menu 710 includes a first icon 711 for setting a language of text displayed on the menu, a second icon 712 for setting a language of audio data output through audio, and a speech recognition language. At least one of a third icon 713 and a fourth icon 714 for setting the language of the keyboard output through the screen may be output.

Referring to (b) of FIG. 13 , the controller 170 selects the third icon 713 from among at least one icon included in the menu 710 for setting the language in FIG. 13 (a). According to a command, the display unit 180 may be controlled to display a menu 720 for setting a voice recognition language. The user may set not only English, which is a language used as a common language in the United States, which is the service target country, but also a language used in other countries as the voice recognition language through the menu 720 . For example, when the user wants to set the voice recognition language to Korean, and selects the area 722 corresponding to Korean from the menu 720 for setting the voice recognition language, the voice recognition language is set to Korean can be set.

Meanwhile, according to the present invention, when the user sets the voice recognition language to Korean and utters a voice for searching for specific content in English, the control unit 170 displays the search results in English as well as the search results in Korean. The display unit 180 may be controlled. This will be described in detail with reference to FIG. 14 .

14 is a diagram illustrating another example of a method of searching for specific content using a user's voice in a display device according to an embodiment of the present invention. With respect to FIG. 14 , the content overlapping with that described with reference to FIG. 13 will not be described again, and will be mainly described below with respect to differences.

For convenience of description of the present embodiment, it is assumed that the service target country of the display device 100 is the United States and the voice recognition language is set to Korean. In addition, it is assumed that the user wants to search for a specific content called “House of card” having a title in English, which is the language of the service target country, through the voice recognition function.

The controller 170 may receive a voice signal corresponding to a voice (“House of card) uttered by a user in order to search for a specific content according to the first command.

For example, the first command may be a command to receive a voice signal for searching for a specific content through the voice signal receiver 160 of the display device 100 . Specifically, when the first signal corresponding to a specific key input of the remote control device 200 is received through the user input interface unit 150 , the control unit 170 receives the microphone included in the voice signal receiving unit 160 . can be activated. In addition, the activated microphone may receive a voice (eg, “House of card”) uttered by a user through the microphone and convert it into an electrical voice signal.

As another example, the first command may be a command to receive a voice signal for searching for a specific content through the voice signal receiver 245 of the remote control device 200 . Specifically, the controller 280 of the remote control device 200 may activate a microphone included in the voice signal receiver 245 in response to a specific key input of the remote control device 200 . In addition, the activated microphone of the remote control device 200 may receive a voice (eg, “House of card”) uttered by a user and convert it into an electrical voice signal. In addition, the controller 280 of the remote control apparatus 200 may control the wireless communication unit 235 to transmit the voice signal to the display device 100 . Accordingly, the display device 100 may receive the voice signal through the user input interface unit 150 .

The controller 170 may recognize whether the second language other than the first language used in the service target country is set as the voice recognition language. Here, since the first language is English and the second language is set to Korean, the controller 170 may recognize that the second language other than the first language is set as the voice recognition language.

The controller 170 recognizes that the voice recognition language is set to Korean rather than a language used in the United States, which is a service target country, and transmits the voice signal to a first external server corresponding to English and a second corresponding to Korean. 2 It is possible to control the network interface unit 130 to transmit to an external server. Here, the reason why the voice signal is transmitted not only to the second external server corresponding to the Korean language set as the voice recognition language but also to the first external server corresponding to English is that the Korean set the voice recognition language to Korean and specified it using English. This is because you can also search for content.

The first external server may be a server that converts the received voice signal into English text. The first external server may store characteristic information indicating when a person who speaks a language different from the first language pronounces text in the first language.

When transmitting the received voice signal to the first external server, the controller 170 may also transmit information indicating that the voice recognition language is set to Korea instead of English.

When the first external server receives the voice signal, it recognizes that the voice recognition language is set to English rather than Korean, and uses specific information indicated when an English-speaking person pronounces Korean. A voice signal can be converted into text. Accordingly, the first external server may recognize the English text uttered with the correct pronunciation even if the Korean utters the English text with an slurred pronunciation. For example, even if the first external server receives a voice signal converted from a voice that a Korean cannot pronounce “House of card” properly into an electrical signal, the stored characteristic information ( For example, it can be recognized as "House of card" using Korean accent, specific information that Koreans show when pronouncing 'r', etc.). In addition, the first external server may convert the voice signal into text "House of card".

Meanwhile, the second external server may be a server that converts the received voice signal into Korean text. For example, when the received voice signal is “House of card”, the second external server may convert the received voice signal into Korean text (eg, “House of Card”). Here, since “House of card” is not Korean, the received voice signal may be converted into text corresponding to a Korean word having similar pronunciation. However, it is assumed that the voice “House of card” uttered by the user in the second external server can be converted into the Korean text “House of Card”. The network interface unit 130 may be controlled to receive the first text corresponding to the voice signal from the server and receive the second text corresponding to the voice signal from the second external server. Here, the first text may include English text corresponding to the voice recognition result of the voice signal, and the second text may include Korean text corresponding to the voice recognition result of the voice signal. For example, the controller 170 may receive a first text “House of card” corresponding to the voice signal from the first external server, and receive a second text corresponding to the voice signal from the second external server. The network interface unit 130 may be controlled to receive the "house of card".

The controller 170 may search for specific content corresponding to at least one of the received first text and the received second text.

For example, the controller 170 extracts EPG (Electronic Program Guide) data included in a broadcast signal received through the tuner 110 , and uses the extracted EPG data to obtain the first text and the second text. The specific content corresponding to at least one may be searched for. Here, the EPG data includes a channel number, a title of a program being broadcast or scheduled to be broadcast on the channel, a start time of the program, an end time of the program, an elapsed time of the currently broadcast program, and a remaining time of the currently broadcast program , may include at least one of the contents of the program. Specifically, specifically, the controller 170 is configured to use the EPG data extracted from the broadcast signal to correspond to the received first text “House of card” and the received second text “House of card”. You can search for specific content.

As another example, the control unit 170 may search for the specific content corresponding to at least one of the first text and the second text through the network interface unit 130 . Specifically, the control unit 170 controls the network interface unit 130 to search the Internet for specific content corresponding to the received first text “House of card” and the received second text “House of card”. can be controlled

The control unit 170 searches for the specific content corresponding to at least one of the first text and the second text using the EPG data included in the broadcast signal, while searching for the specific content through the network interface unit 130 . The specific content corresponding to at least one of a text and the second text may be searched for. That is, the control unit 170 may search for the specific content through the network interface unit 130 while searching for the specific content using the EPG data, and if the specific content is not searched using the EPG data, the network interface The specific content may be searched for through the unit 130 . However, the present invention is not limited thereto.

The controller 170 may control the display 180 to display a search result of a specific content corresponding to at least one of the received first text and the received second text. Specifically, the controller 170 displays the search result of the specific content corresponding to the first text on the first area 810 on the screen 800, and displays the search result of the specific content corresponding to the second text. The display unit 180 may be controlled to display on the second area 820 on the screen 800 .

For example, since the service target country is the United States, only a broadcast program having a title corresponding to the first text “House of card” is included in the EPG data, and a broadcast program corresponding to the second text “House of card” is included. A broadcast program with a title may not exist. Accordingly, the controller 170 may control the display unit 180 to display information on a broadcast program corresponding to the first text on the first area 810 as a search result. Here, the search result may include a thumbnail image of a broadcast program called “House of card”. However, according to an embodiment, the controller 170 may control the display unit 180 so that the EPG information of the program is displayed on the first area 810 .

As another example, when a search result of the first text "House of card" and the second text "House of card" exists on the Internet, the controller 170 controls the first text "House of card" A search result (for example, an Internet address, a thumbnail image of a video, etc.) of The display unit 180 may be controlled so that a thumbnail image of a moving picture, etc.) is displayed on the second area 820 .

As another example, if there is no search result of the first text “House of card” on the Internet and only the search result of the second text “House of card” exists, the controller 170 controls the “House of Card” The display unit 180 may be controlled so that the search result of “of card” is displayed on the second area 820 .

In another example, a broadcast program having a title corresponding to the first text “House of card” is included in the EPG data, and there is a search result of the second text “House of card” on the Internet. In this case, the controller 170 displays information on the broadcast program "House of card" as a search result in the first area 810, and retrieves the search result of the second text "House of card" as the search result. The display unit 180 may be controlled to display on the second area 820 .

Meanwhile, the controller 170 may control the display unit 180 to display the received first text and the received second text on a predetermined area on the screen 800 . The user may check the first text and the second text output on the screen 800 to check which text was used to search.

According to an embodiment, the controller 170 includes a first GUI 1010 for checking only a search result of a specific content corresponding to the second text among the first text and the second text, and the first text and the second text. The display unit 180 may be controlled to display a second GUI 1020 for checking all search results of specific content corresponding to each of the two texts on the screen 800 .

The control unit 170 controls the display unit 180 so that a search result of a specific content corresponding to the second text is displayed on a predetermined area on the screen 800 according to a command for selecting the first GUI 1010 . controllable, and according to a command to select the second GUI 1020 , a search result of a specific content corresponding to each of the first text and the second text is displayed to be displayed on a predetermined area on the screen 800 . The unit 180 can be controlled. This will be described later in more detail with reference to FIGS. 17 and 18 .

Conventionally, when the voice recognition language is set to a second language other than the first language used in the country of the region where the display device is sold or the country of the region where the display device is installed, the user uses the first language to specify There was a problem that the content could not be found. In addition, when a voice recognition language is set as the first language and a specific content is searched using the first language, a specific content search result desired by the user must be searched for through accurate pronunciation and accurate intonation. could That is, when a foreigner utters a voice searching for specific content using the first language with incorrect pronunciation and incorrect intonation, an incorrect result is output. However, according to the present embodiment, even if the user sets the voice recognition language as a second language other than the first language used in the country of the region in which the display device is sold or the country of the region in which the display device is installed, the user may set the first language to find specific content. In addition, according to the present embodiment, when the user sets the speech recognition language as the second language and searches for specific content using the first language, accurate search results are obtained even if the first language is uttered with incorrect pronunciation and incorrect intonation. can be output.

Meanwhile, according to the present invention, the controller 170 displays a search result of a specific content corresponding to the selected text on the screen according to a command to select any one of the first text and the second text displayed on the screen. The display unit 180 may be controlled to do so. This will be described in more detail with reference to FIGS. 15 and 16 .

15 and 16 are diagrams for explaining another example of a method of displaying a search result of a specific content on a screen using a voice uttered by a user in a display device according to an embodiment of the present invention. With respect to FIGS. 15 and 16 , the content overlapping with those described above with reference to FIGS. 13 and 14 will not be described again, but will be described below focusing on differences.

For convenience of description of the present embodiment, it is assumed that the service target country of the display device 100 is the United States and the voice recognition language is set to Korean. In addition, it is assumed that the user wants to search for a specific content called “House of card” having a title in English, which is the language of the service target country, through the voice recognition function.

According to the present embodiment, the control unit 170 is a voice signal for searching for a specific content according to the first command (eg, a voice uttered by the user to search for a specific content (eg, “House of card”). The voice signal receiving unit 160 may be controlled to receive (a voice signal converted from ") into an electrical signal). Since the voice recognition language is set to Korean, not English, which is used in the United States, the service target country, the control unit 170 corresponds to the first external server corresponding to English and Korean for the voice signal received through the voice signal receiving unit. may control the network interface unit 130 to transmit to a second external server. Then, the control unit 170 receives a first text (eg, a text "House of card") corresponding to the voice signal from the first external server, and receives a second text (eg, a text "House of card") corresponding to the voice signal. For example, the network interface unit 130 may be controlled to receive the text (“House of Cards”) from the second external server. The controller 170 may control the display 180 to display a search result of a specific content corresponding to at least one of the received first text and second text. In this case, the controller 170 may control the display 180 to display the first text and the second text together with the search result. For example, the controller 170 may control the display 180 to display “House of card” and “House of card” together with the search result.

Referring to FIG. 15 , in response to a command for selecting an area 910 in which the first text is displayed, the controller 170 displays a search result of a specific content corresponding to the first text in a predetermined area 830 on the screen. The display unit 180 may be controlled to be displayed. For example, the controller 170 searches for specific content corresponding to the first text “House of card” according to a command for selecting an area 910 in which the first text “House of card” is displayed. The display unit 180 may be controlled so that only the result is displayed in a predetermined area 830 on the screen.

When the area 910 in which the first text is displayed is selected, the controller 170 is configured to display the area 910 in which the first text is displayed to be highlighted to indicate that the first text is selected. can be controlled. Accordingly, the user may recognize that the first text has been selected.

According to the present embodiment, when the user wants to check only the search result corresponding to the first text among the search results corresponding to the first text and the second text, the first text is selected through a simple command to select the first text. 1 There is an advantage that only search results corresponding to text can be checked.

Referring to FIG. 16 , in response to a command for selecting an area 920 in which the second text is displayed, the controller 170 displays a search result of a specific content corresponding to the second text in a predetermined area 830 on the screen. The display unit 180 may be controlled to be displayed. For example, the controller 170 searches for specific content corresponding to the first text, “House of Cards,” according to a command for selecting an area 920 in which the second text “House of Cards” is displayed. The display unit 180 may be controlled so that only the result is displayed in a predetermined area 830 on the screen.

When the area 920 in which the second text is displayed is selected, the controller 170 is configured to display the area 920 in which the second text is displayed to be highlighted in order to indicate that the second text is selected. can control Accordingly, the user may recognize that the first text has been selected.

According to this embodiment, when the user wants to check only the search result corresponding to the second text among the search results corresponding to the first text and the second text, the second text is selected through a simple command to select the second text. 2 There is an advantage that only search results corresponding to text can be checked.

Meanwhile, according to the present invention, the control unit 170 may output a search result of a specific content searched only in a language set as a voice recognition language through a command for selecting a specific GUI output on the screen, A search result of a specific content searched for may be output using the language of the service target country. This will be described in more detail with reference to FIGS. 17 and 18 .

17 and 18 are diagrams for explaining another example of a method of displaying a search result of a specific content on a screen using a voice uttered by a user in a display device according to an embodiment of the present invention. With respect to FIGS. 17 and 18 , the content overlapping with those described with reference to FIGS. 13 and 14 will not be described again, and will be described below focusing on differences.

For convenience of description of the present embodiment, it is assumed that the service target country of the display device 100 is the United States and the voice recognition language is set to Korean. In addition, it is assumed that the user wants to search for a specific content called “House of card” having a title in English, which is the language of the service target country, through the voice recognition function.

According to the present embodiment, the control unit 170 is a voice signal for searching for a specific content according to the first command (eg, a voice uttered by the user to search for a specific content (eg, “House of card”). The voice signal receiving unit 160 may be controlled to receive (a voice signal converted from ") into an electrical signal). Since the voice recognition language is set to Korean, not English, which is used in the United States, which is the service target country, the controller 170 transmits the voice signal received through the voice signal receiver to the first external server corresponding to the English and the Korean language. The network interface unit 130 may be controlled to transmit to a second external server corresponding to . Then, the control unit 170 receives a first text (eg, a text "House of card") corresponding to the voice signal from the first external server, and receives a second text (eg, a text "House of card") corresponding to the voice signal. For example, the network interface unit 130 may be controlled to receive the text (“House of Cards”) from the second external server. The controller 170 may control the display 180 to display a search result of a specific content corresponding to at least one of the received first text and second text.

According to an embodiment, the controller 170 may include a first GUI 1010 for checking a search result of a specific content corresponding to the second text among the first text and the second text, and the first text and the second text. The display unit 180 may be controlled to display a second GUI 1020 for confirming a search result of a specific content corresponding to each of the two texts. The controller 170 may control the display unit 180 so that the first GUI 1010 and the second GUI 1020 are displayed together with the search result, and before the search result is displayed, the first GUI The display unit 180 may be controlled to display 1010 and the second GUI 1020 .

Referring to FIG. 17 , the controller 170 displays a search result of a specific content corresponding to the second text in a predetermined area 830 on the screen according to a command to select the first GUI 1010 . The unit 180 can be controlled. For example, in response to a command to select the first GUI 1010 , the controller 170 may only search for a specific content corresponding to the second text, “House of Cards,” in a predetermined area 830 on the screen. ) can be controlled to display the display unit 180 .

According to this embodiment, when the user wants to perform a search only in the language set as the voice recognition language, the search result can be output only in the language set as the voice recognition language by selecting the first GUI 1010 . .

Referring to FIG. 18 , in response to a command for selecting the second GUI 1020 , the controller 170 displays a search result of a specific content corresponding to the first text and a search result of a specific content corresponding to the second text. The display unit 180 may be controlled to display on the screen. Specifically, the controller 170 may control the display unit 180 to display a search result of a specific content corresponding to the first text “House of Cards” on the first area 810 on the screen, The display unit 180 may be controlled to display a search result of a specific content corresponding to the second text “House of Cards” on the second area 820 of the screen.

According to this embodiment, even after the user selects the first GUI 1010 and the search result of the specific content corresponding to the second text is displayed, only a simple command to select the second GUI 1020 There is an advantage in that a search result of a specific content corresponding to the text and a search result of a specific content corresponding to the second text can be output again. In addition, according to the present embodiment, there is an advantage that the user can select the second GUI 1020 to output both the first text and the search results of a specific content corresponding to the second text.

Meanwhile, according to an embodiment of the present invention, priorities of the first text and the second text are determined, and a specific content corresponding to the text having a higher priority among the first text and the second text is searched for. Results may also be displayed. This will be described in more detail with reference to FIGS. 19 to 21 .

19 is a flowchart for explaining an example of a method of displaying a search result of a specific content according to the priority of text received from at least one external server in the display device according to an embodiment of the present invention. With respect to FIG. 19 , the content overlapping with those described above with reference to FIG. 6 will not be described again, but will be mainly described below with respect to the differences.

The controller 170 may receive, as a voice signal, a voice for searching for specific content uttered by the user according to the first command. When the voice recognition language is set to a second language different from the first language used in the service target country, the control unit 170 is configured to control the first external server corresponding to the first language through the network interface unit 130 . and control the network interface unit 130 to transmit the received voice signal to a second external server corresponding to the second language. The control unit 170 receives the first text corresponding to the voice signal from the first external server and operates the network interface unit 130 to receive the second text corresponding to the voice signal from the second external server. can be controlled

The controller 170 may determine the priority of the first text and the second text according to a preset condition (S681). Specifically, the priority is information on whether the text corresponding to the voice signal is text corresponding to a specific content currently being broadcast or scheduled to be broadcast on a specific channel, and whether the text corresponds to a specific content for which a search history exists. It may be determined by using at least one of information on whether the content is text corresponding to a specific content in which the viewing history exists. For example, text corresponding to specific content currently being broadcast on a specific channel has the highest priority, text corresponding to specific content scheduled to be broadcast on a specific channel, text corresponding to specific content with viewing history, and search history Priority may be determined in the order of text corresponding to existing specific content. According to an embodiment, the preset condition for determining the priority may be updated periodically or aperiodically according to a specific signal received from an external server.

According to an embodiment, only when the user sets through the menu, the controller 170 may determine the priority of the first text and the second text according to a preset condition.

The controller 170 may recognize a text having a higher priority among the received first text and the received second text (S682).

For example, assuming that the first text is a text corresponding to a title of a specific content currently being broadcast on a specific channel, the controller 170 recognizes that the received first text has a higher priority than the second text. can do.

As another example, when the first text corresponds to a specific content currently being broadcast on a specific channel and the second text corresponds to a specific content for which a search history exists, the controller 170 controls the first The text may be recognized as a text having a higher priority than the second text.

As another example, when the first text is a text corresponding to a specific content with a search history and the second text is a text corresponding to a specific content with a viewing history, the second text is the first text It can be recognized as text having a higher priority than text.

The controller 170 may control the display 180 to display a search result of a specific content corresponding to the text having a high priority (S683). When the search result of the specific content corresponding to the text having a high priority is displayed as described above, the probability that the search result of the specific content desired by the user is displayed increases.

For example, when the first text among the first text and the second text is a text having a high priority, the controller 170 may display a search result of a specific content corresponding to the first text having a high priority. The display unit 180 may be controlled.

As another example, when the second text among the first text and the second text is a text having a high priority, the controller 170 displays a search result of a specific content corresponding to the second text having a high priority The display unit 180 may be controlled to do so.

According to an embodiment, when the priority of the first text and the second text is the same, the display unit 180 may be controlled to display a search result of a specific content corresponding to the first text and the second text. may be Specifically, the controller 170 displays the search result of the specific content corresponding to the first text in a first area on the screen, and the search result of the specific content corresponding to the second text is displayed in the second area on the screen. can be displayed.

20 is a diagram for explaining an example of a method of displaying a search result of a specific content according to the priority of text received from at least one external server in the display device according to an embodiment of the present invention. With respect to FIG. 20, the content overlapping with those described above with reference to FIGS. 7 and 8 will not be described again, but will be described below focusing on differences.

For convenience of description of the present embodiment, it is assumed that the service target country of the display device 100 is Korea and the voice recognition language is set to English.

According to the present embodiment, the control unit 170, according to the first command, a voice signal for searching for a specific content (eg, a voice uttered by a user to search for a specific content (eg, “infinite challenge”) ) may be controlled to the voice signal receiver 160 to receive a voice signal converted into an electrical signal). Since the voice recognition language is set to English, not Korean, which is used in Korea, which is the service target country, the control unit 170 transmits the voice signal received through the voice signal receiver 160 to the first external server corresponding to the Korean language. and control the network interface unit 130 to transmit to the second external server corresponding to the English language. In addition, the control unit 170 receives a first text (eg, text "infinite challenge") corresponding to the voice signal from the first external server, and receives a second text (eg, text "infinite challenge") corresponding to the voice signal. , the text "More John") may be controlled by the network interface unit 130 to receive from the second external server.

The control unit 170 determines priorities of the first text and the second text according to a preset condition, and the specific content corresponding to the text having a higher priority among the first text and the second text The display unit may be controlled to output the search result of . Specifically, the priority is information on whether text corresponds to a specific content currently being broadcast or scheduled to be broadcast on a specific channel, information on whether text corresponds to a specific content for which a search history exists, and information on whether a viewing history exists. It may be determined using at least one of information on whether the text corresponds to a specific content. Here, the text corresponding to the specific content currently being broadcast on the specific channel has the highest priority, the text corresponding to the specific content scheduled to be broadcast on the specific channel, the text corresponding to the specific content for which the viewing history exists, and the search history are Priority may be determined in the order of text corresponding to existing specific content. Then, the controller 170 searches for a specific text by using the text corresponding to the high-priority text among the first text and the second text, and searches for a specific content corresponding to the high-priority text. The display unit 180 may be controlled to display on a predetermined area on the screen.

For example, referring to FIG. 20 , when the first text “Infinite Challenge” is a text corresponding to “Infinite Challenge”, which is a program currently being broadcast on a specific channel, the controller 170 controls the first text “Infinite Challenge”. Infinite challenge" may be recognized as a text having a higher priority than "More John", which is the second text. Accordingly, the controller 170 searches for a specific content using the first text “infinite challenge” and controls the display unit 180 to display a search result of the specific content corresponding to the “infinite challenge”. can In this case, as shown in FIG. 20 , the controller 170 may control the display unit 180 to output EPG information in which the first text “infinite challenge” is searched for. However, the present invention is not limited thereto, and the controller 170 may control the display unit 180 to output a thumbnail image of the searched specific content.

Meanwhile, according to an embodiment, the controller 170 may control the display unit 180 to display the received first text and the received second text on a predetermined area on the screen 800 . For example, the controller 170 displays the first text “Infinite Challenge” on the first area 910 on the screen 800, and displays the second text “More John” as the second text on the screen 800 . The display unit 180 may be controlled to display in the second area 920 .

According to the present embodiment, there is an advantage of providing convenience to the user by automatically extracting a specific content that the user wants to search for by using the priority, and displaying only the specific content the user wants to search for on the screen.

21 is a diagram for explaining another example of a method of displaying a search result of a specific content according to the priority of text received from at least one external server in the display device according to an embodiment of the present invention. With respect to FIG. 21 , content overlapping with those described above with reference to FIGS. 7 and 8 will not be described again, but will be described below focusing on differences.

For convenience of description of the present embodiment, it is assumed that the service target country of the display device 100 is the United States and the voice recognition language is set to Korean.

According to the present embodiment, the control unit 170 is a voice signal for searching for a specific content according to the first command (eg, a voice uttered by the user to search for a specific content (eg, “House of card”). The voice signal receiving unit 160 may be controlled to receive (a voice signal converted from ") into an electrical signal). Since the voice recognition language is set to Korean, not English, which is used in the United States, which is the service target country, the control unit 170 corresponds to the first external server corresponding to English and Korean for the voice signal received through the voice signal receiving unit. may control the network interface unit 130 to transmit to a second external server. Then, the control unit 170 receives a first text (eg, a text "House of card") corresponding to the voice signal from the first external server, and receives a second text (eg, a text "House of card") corresponding to the voice signal. For example, the network interface unit 130 may be controlled to receive the text (“House of Cards”) from the second external server.

The control unit 170 determines priorities of the first text and the second text according to a preset condition, and the specific content corresponding to the text having a higher priority among the first text and the second text The display unit may be controlled to output the search result of . Specifically, the priority is information on whether text corresponds to a specific content currently being broadcast or scheduled to be broadcast on a specific channel, information on whether text corresponds to a specific content for which a search history exists, and information on whether a viewing history exists. It may be determined using at least one of information on whether the text corresponds to a specific content. Here, the text corresponding to the specific content currently being broadcast on the specific channel has the highest priority, the text corresponding to the specific content scheduled to be broadcast on the specific channel, the text corresponding to the specific content with the viewing history, and the search history Priority may be determined in the order of text corresponding to existing specific content. Then, the controller 170 searches for a specific text by using a text corresponding to the text having a higher priority among the first text and the second text, and displays the search result on a predetermined area on the screen. 180 can be controlled.

For example, referring to FIG. 21 , when the first text “House of card” is a text corresponding to “House of card”, which is a program currently being broadcast on a specific channel, the controller 170 controls the first text "House of card" may be recognized as a text having a higher priority than the second text "House of card". Accordingly, the controller 170 searches for a specific content using the first text “House of card” and controls the display unit 180 to display the search result of the specific content corresponding to the “House of card”. can be controlled In this case, as shown in FIG. 21 , the controller 170 may control the display unit 180 to output EPG information searched for “House of card” as the first text. However, the present invention is not limited thereto, and the controller 170 may control the display unit 180 to output a thumbnail image of the searched specific content.

The controller 170 may control the display unit 180 to display the received first text and the received second text on a predetermined area on the screen 800 . For example, the controller 170 displays the first text “House of card” on the first area 910 on the screen 800 , and displays the second text “House of card” on the screen 800 . The display unit 180 may be controlled to display on the second area 920 of the image.

According to the present embodiment, there is an advantage of providing convenience to the user by automatically extracting a specific content that the user wants to search for by using the priority, and displaying only the specific content the user wants to search for on the screen.

According to the above-described embodiments of the present invention, even when the voice recognition language is set to a second language other than the first language used in the country of the region where the display device is sold or the country of the region where the display device is installed, There is an effect that the user can find specific content by using the first language. In addition, even if a foreigner utters a voice for searching for a specific content using the first language with an incorrect pronunciation, there is an effect that the user can properly search for a specific content.

In the above, preferred embodiments of the present invention have been illustrated and described, but the present invention is not limited to the specific embodiments described above, and it is common in the technical field to which the present invention pertains without departing from the gist of the present invention as claimed in the claims. Various modifications are possible by those having the knowledge of, of course, and these modifications should not be individually understood from the technical spirit or prospect of the present invention.

100: display device
105: broadcast receiver
110: tuner
120: demodulator
130: network interface unit
135: external device interface unit
140: storage
150: user input interface unit
170: control unit
180: display unit
185: audio output unit
190: power supply
200: remote control device

Claims (18)

In the display device in which the speech recognition language is set as a second language other than the first language used in a service target country,
a voice signal receiver configured to receive a voice signal for searching for a specific content according to the first command;
a network interface unit capable of communicating with an external server;
display unit; and
control unit; including;
The control unit is
controlling the network interface unit to transmit the voice signal received through the voice signal receiving unit to a first external server corresponding to the first language and a second external server corresponding to the second language;
controlling the network interface unit to receive a first text corresponding to the voice signal from the first external server and to receive a second text corresponding to the voice signal from the second external server,
control to display a search result of the specific content corresponding to at least one of the received first text and second text on the display unit,
The control unit is
determine the priority of the first text and the second text according to a preset condition, and display the search result of the specific content corresponding to the text having the higher priority among the first text and the second text but control the display unit,
Information on whether the text corresponds to the specific content currently being broadcast or scheduled to be broadcast on a specific channel, information on whether the text corresponds to the specific content in which the search history exists, and whether the text corresponds to the specific content with the viewing history. The display device is determined using at least one of the information about. The method of claim 1,
The first text is
and a text in the first language corresponding to the speech recognition result of the speech signal,
The second text is
and a text in the second language corresponding to a speech recognition result of the speech signal. delete delete The method of claim 1,
The control unit is
A first GUI for confirming a search result of a specific content corresponding to the second text among the first text and the second text and a search result of a specific content corresponding to each of the first text and the second text A display device for controlling the display unit to display a second GUI for delete The method of claim 1,
The control unit is
A display for controlling the display unit to display a search result of a specific content corresponding to the first text in a first area on a screen and display a search result of a specific content corresponding to the second text in a second area on the screen device. The method of claim 1,
Further comprising a tuner for receiving a broadcast signal,
The control unit is
Extracting EPG data included in the broadcast signal, and searching for the specific content corresponding to at least one of the first text and the second text by using the extracted EPG data. The method of claim 1,
The control unit is
Searching for the specific content corresponding to at least one of the first text and the second text through the network interface unit, the display device. In the control method of a display device in which a voice recognition language is set as a second language other than the first language used in a service target country,
communicating with an external server;
receiving a voice signal for searching for a specific content through a voice signal receiver according to a first command;
transmitting the voice signal received through the voice signal receiver to a first external server corresponding to the first language and a second external server corresponding to the second language;
receiving a first text corresponding to the voice signal from the first external server and receiving a second text corresponding to the voice signal from the second external server;
Displaying a search result of the specific content corresponding to at least one of the received first text and the second text;
The control method is
determining the priority of the first text and the second text according to a preset condition, and displaying a search result of the specific content corresponding to the text having a higher priority among the first text and the second text further comprising;
Information on whether the text corresponds to the specific content currently being broadcast or scheduled to be broadcast on a specific channel, information on whether the text corresponds to the specific content in which the search history exists, and whether the text corresponds to the specific content with the viewing history. A method of controlling a display device, which is determined using at least one of information about the display device. delete delete delete delete delete delete delete delete

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