Display device and method of controlling the same

Abstract

A display device is provided, comprising: a display; a content interface; a communication interface; and a controller, the controller being configured to: control the display to display an image corresponding to a broadcast signal received through the content interface; receive operation information of an external audio device through at least one interface selected from the content interface and the communication interface; and in response to receiving the operation information of the external audio device, control the display to display a control menu for providing the operation information of the external audio device and obtaining user input related to the operation of the external audio device.

Description

Technical Field

[0001] The present disclosure relates to a display device and a method of controlling the same, and more particularly, to a display device connected to an audio device in a wired or wireless manner and a method of controlling the same. Background Art

[0002] Generally, a display apparatus is an output apparatus that visually displays image information received from an external device or stored inside the display apparatus to a user and is used in various fields such as home and business.

[0003] To assist audio output, the display device may be connected to the audio device in a wired or wireless manner. For example, the display device may send an electrical audio signal (or audio data) to the audio device, and the audio device may output sound according to the audio signal received from the display device.

[0004] Unlike conventional audio devices, recent audio devices have a compact size. For example, in the audio device, input buttons and a display are minimized, and a speaker for outputting sound occupies a large area of ​​a main body.

[0005] In addition, the interaction between the audio device and the user has been weakened. For example, the recent audio device may only use a light emitting diode (LED) to indicate the operation of the audio device.

[0006] Under such a configuration, the user may not be able to accurately recognize the operating status of the audio device. Summary of the invention

[0007] Technical issues

[0008] Therefore, an object of the present disclosure is to provide a display device capable of displaying information on an operation of an audio device connected thereto and a method of controlling the same.

[0009] Another object of the present disclosure is to provide a display device capable of displaying information on the operation of an audio device when the audio device operates alone, and a method of controlling the same.

[0010] Another object of the present disclosure is to provide a display device capable of minimizing power consumption for displaying information on an operation of an audio device and a method of controlling the same.

[0011] Other aspects of the present disclosure will be set forth in part in the description which follows and, in part, will be apparent from the description, or may be learned by practice of the present disclosure.

[0012] Solution to the problem

[0013] According to one aspect of the present disclosure, a display device is provided, including a display, a content interface; a communication interface; and a controller, the controller being configured to control the display to display an image corresponding to a broadcast signal received through the content interface, receive operation information of an external audio device through at least one interface selected from the content interface and the communication interface, and control the display to display a control menu for providing the operation information of the external audio device and controlling the external audio device based on the operation information of the external audio device.

[0014] According to another aspect of the present disclosure, a method for controlling a display device including a communication interface and a content interface is provided, the method including: displaying an image corresponding to a broadcast signal received through the content interface, receiving operation information of an external audio device through at least one interface selected from the content interface and the communication interface, and displaying on the display a control menu for providing the operation information of the external audio device and controlling the external audio device based on the operation information of the external audio device.

[0015] According to another aspect of the present disclosure, a display device is provided, including a display, a user input, a content interface, a communication interface and a controller, the controller being configured to: control the display to display an image corresponding to a broadcast signal received through the content interface; receive information about an application related to audio reproduction of an external user device that communicates with the external audio device from an external audio device through at least one interface selected from the content interface and the communication interface; display a control menu for providing information about the application of the external user device and executing the application of the external user device; obtain user input for executing the application of the external user device through the control menu displayed on the display and the user input; and send the user input to the external audio device through the at least one interface, so that the user input is sent to the external user device.

[0016] Other aspects of the present disclosure will be set forth in part in the description which follows and, in part, will be apparent from the description, or may be learned by practice of the present disclosure.

[0017] Beneficial Effects

[0018] According to one aspect of the present disclosure, a display device capable of displaying information on an operation of an audio device connected thereto and a method of controlling the same are provided.

[0019] In accordance with another aspect of the present disclosure, a display device capable of displaying information on an operation of an audio device when the audio device operates alone and a method of controlling the same are provided.

[0020] In accordance with another aspect of the present disclosure, a display device capable of minimizing power consumption for displaying information on an operation of an audio device and a method of controlling the same are provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A display device and an audio device connected to the display device according to an embodiment are shown.

[0022] Figure 2 A configuration of a display device according to an embodiment is shown.

[0023] Figure 3 An example of a display included in a display device according to an embodiment is shown.

[0024] Figure 4 An example of a display included in a display device according to an embodiment is shown.

[0025] Figure 5 A configuration of an audio device according to an embodiment is shown.

[0026] Figure 6 Operations of the display device and the audio device according to the embodiment are shown.

[0027] Figure 7 Shown according to Figure 6 The illustrated operation displays an image on the display device.

[0028] Figure 8 Operations of the display device and the audio device according to the embodiment are shown.

[0029] Fig. 9 Shown according to Figure 8 The illustrated operation displays an image on the display device.

[0030] Fig.10 The operation of the display device according to the embodiment is shown.

[0031] Fig.11 Operations of the display device and the audio device according to the embodiment are shown.

[0032] Fig.12 Operations of the display device and the audio device according to the embodiment are shown.

[0033] Fig.13 Shown according to Fig.12 The illustrated operation displays an image on the display device.

[0034] Fig.14 A display device according to an embodiment and a plurality of audio devices connected to the display device are shown.

[0035] Fig.15 Operations of a display device and a plurality of audio devices according to an embodiment are illustrated.

[0036] Fig.16 Shown according to Fig.15 The illustrated operation displays an image on the display device.

[0037] Fig.17 A display device, an audio device connected to the display device, and a user equipment connected to the audio device according to an embodiment are shown.

[0038] Fig.18 Operations of a display device, an audio device, and a user equipment according to an embodiment are illustrated.

[0039] Fig.19 Operations of a display device, an audio device, and a user equipment according to an embodiment are illustrated.

[0040] Fig. 20 Shown according to Fig.19 The illustrated operation displays an image on the display device. DETAILED DESCRIPTION

[0041] The following detailed description is provided to assist the reader in fully understanding the methods, devices and / or systems described herein. Therefore, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be suggested to those of ordinary skill in the art. The process of processing operations described is an example; however, the order of and / or operations is not limited to the order set forth herein and may be changed as known in the art, except for operations that must occur in a specific order. In addition, for greater clarity and conciseness, the corresponding description of well-known functions and structures may be omitted.

[0042] In addition, the exemplary embodiments will be described more fully below with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in a variety of different forms and should not be construed as being limited to the embodiments set forth herein. These embodiments are provided to make this disclosure thorough and complete, and to fully convey these exemplary embodiments to those of ordinary skill in the art. Throughout the text, the same reference numerals represent the same elements.

[0043] It should be understood that although the terms first, second, etc. can be used to describe various elements in this article, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0044] It should be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or there can be intermediate elements. Conversely, when an element is referred to as being "directly connected" or "directly coupled" to another element, there are no intermediate elements.

[0045] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0046] Reference will now be made in detail to exemplary embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

[0047] The expression "at least one of a, b and c" should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b and c.

[0048] Therefore, an object of the present disclosure is to provide a display device capable of displaying information on an operation of an audio device connected thereto and a method of controlling the same.

[0049] Another object of the present disclosure is to provide a display device capable of displaying information on the operation of an audio device when the audio device operates alone, and a method of controlling the same.

[0050] Another object of the present disclosure is to provide a display device capable of minimizing power consumption for displaying information on an operation of an audio device and a method of controlling the same.

[0051] Figure 1 A display device and an audio device connected to the display device according to an embodiment are shown.

[0052] refer to Figure 1 , the display device 100 may be connected to the audio device 200 in a wired / wireless manner, and may output sound through the audio device 200 .

[0053] The display device 100 is a device capable of processing video data received from the outside and / or video data stored in the display device 100, and visually displaying the processed video (a series of multiple images). In the following description, the display device 100 is shown as a television (TV), but the present disclosure is not limited thereto. For example, the display device 100 can be implemented in various forms (such as a monitor, a portable multimedia device, a portable communication device, and a portable computing device) without limitation in name and form, as long as the display device 100 can visually display an image.

[0054] In addition, the display device 100 may be a large display device (large display (LFD)) installed outdoors, such as on the roof of a building or a bus stop. Here, outdoors is not limited to open-air places, and may include places where a large number of people enter or exist, and even the interior of a building where the display device 100 according to the embodiment may be installed, such as a subway station, a shopping mall, a cinema, a company, a store, etc.

[0055] The display device 100 may receive video data and audio data from various content sources. For example, the display device 100 may receive video / audio data (television broadcast content) via a broadcast receiving antenna or a wired cable, receive video / audio data from a content playback device, or receive video / audio data from a content provider's content providing server.

[0056] The display device 100 may display an image corresponding to the video data and output a sound corresponding to the audio data. For example, the display device 100 may reconstruct a plurality of images included in the video data and continuously display the plurality of images. In addition, the display device 100 may reconstruct an audio signal included in the audio data and continuously output a sound according to the audio signal.

[0057] refer to Figure 1 The display device 100 includes a main body 101 accommodating a plurality of components for displaying an image, and a screen S for displaying an image I disposed at one side of the main body 101 .

[0058] The body 101 may form an appearance of the display device 100 , and accommodate components required for the display device 100 to display an image I.

[0059] A screen S is formed on the front surface of the body 101 , and an image I, which is visual information, may be displayed on the screen S. As shown in FIG.

[0060] The screen S includes a plurality of pixels P, and an image I displayed on the screen S may be formed by a combination of lights emitted from the plurality of pixels P. For example, lights emitted from the plurality of pixels P may be combined as a mosaic to form a single image I on the screen S.

[0061] Each pixel P may emit light of various brightness and various colors.

[0062] In order to emit light of various brightnesses, each of the plurality of pixels P may directly emit light (self-emissive display panel) or may transmit or block light emitted by a backlight unit or the like (non-emissive display panel). For example, the display device 100 may include a liquid crystal display panel (LCD panel), a light emitting diode panel (LED panel), an organic light emitting diode panel (OLED panel), or a quantum dot (QD) display panel.

[0063] In order to display images of various colors, each of the plurality of pixels P may include sub-pixels Psub1, Psub2, and Psub3. For example, the sub-pixels may include a red sub-pixel that may emit red light, a green sub-pixel that may emit green light, and a blue sub-pixel that may emit blue light (RGB pixel). For example, the sub-pixels may include a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel that may emit white light (RGBW pixel). For example, the sub-pixels may include a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a yellow sub-pixel that may emit yellow light (RGBY pixel). However, the sub-pixel structure is not limited to the above, and may include various sub-pixel structures currently disclosed or to be disclosed later.

[0064] The display device 100 may directly output sound according to the audio data, or may transmit the audio data to the audio device 200 so that the audio device 200 outputs sound according to the audio data.

[0065] The audio device 200 is a device capable of processing audio data received from the outside and / or audio data stored therein, and audibly outputting the processed sound. The name and form of the audio device 200 are not limited as long as it can audibly output audio. For example, the audio device 200 may be called a "speaker", "sound bar", "Bluetooth speaker", "WiFi speaker" or "artificial intelligence speaker".

[0066] The audio device 200 may receive audio data from various content sources. For example, the audio device 200 may receive audio data (radio broadcast) through a broadcast receiving antenna, receive audio data from an audio playback device, or receive audio data from an audio providing server.

[0067] The audio device 200 may reconstruct an audio signal included in the audio data and continuously output sound according to the audio signal.

[0068] refer to Figure 1 The audio device 200 may include a main body 201 accommodating a plurality of components for outputting sound, and a speaker disposed at one side of the main body 201 for outputting sound.

[0069] The audio device 200 may include one or more speakers to output sounds of various frequency bands. For example, the audio device 200 may include a tweeter capable of outputting high-frequency sounds, a mid-range speaker capable of outputting intermediate-frequency sounds, or a woofer capable of outputting low-frequency sounds.

[0070] The audio device 200 may transmit operation information of the audio device 200 to the display device 100 to display the operation state of the audio device 200. The audio device 200 may omit a display panel for displaying an image to ensure a compact appearance, and may include a light emitting diode (LED) for providing only minimal information about the operation of the audio device 200.

[0071] Therefore, the audio device 200 may transmit the operation information of the audio device 200 to provide detailed information on the operation of the audio device 200 to the user.

[0072] The configuration and operation of the display device 100 and the audio device 200 will be described in detail below.

[0073] Figure 2 A configuration of a display device according to an embodiment is shown. Figure 3 An example of a display included in a display device according to an embodiment is shown. Figure 4 An example of a display included in a display device according to an embodiment is shown.

[0074] refer to Figure 2 , Figure 3 and Figure 4 The display device 100 includes a user input 110 that receives a user input from a user, a content interface 120 that receives video data and / or audio data from a content source, a speaker 140 that outputs sound, a display 150 that displays an image, a communication interface 160 that sends and receives data including video / audio data to and from an external device, a storage device 170 that stores a program and data for controlling the operation of the display device 100, and a controller 180 that processes the video data and / or audio data and controls the operation of the display device 100.

[0075] The user input 110 may include an input button 111 for receiving a user input. For example, the user input 110 may include a power button for turning the display device 100 on or off, a volume control button for adjusting the volume, a source selection button for selecting a content source, and the like.

[0076] Each of the input buttons 111 can receive user input and can output an electrical signal (voltage or current) corresponding to the user input to the controller 180, and can be implemented as various input devices such as a push switch, a touch switch, a dial, a slide switch, a toggle switch, etc.

[0077] The user input 110 includes a signal receiver 112 for receiving a remote control signal of a remote control 112a. The remote control 112a for acquiring a user input may be provided separately from the display device 100. The remote control 112a may acquire the user input and transmit a wireless signal (e.g., an infrared signal) corresponding to the user input to the display device 100. The signal receiver 112 may receive a wireless signal (e.g., an infrared signal) from the remote control 112a and output an electrical signal (voltage or current) corresponding to the user input to the controller 180.

[0078] The content interface 120 may receive video / audio data from a content source, or transmit video / audio data to or receive video / audio data from a peripheral device (eg, an audio device).

[0079] The content interface 120 may include a transmission / reception terminal 121. The transmission / reception terminal may include a component YPbPr / RGB terminal, a composite video blanking and sync (CVBS) terminal, an audio terminal, etc. In addition, the transmission / reception terminal 121 may include a high-definition multimedia interface (HDMI) terminal capable of transmitting and receiving video / audio data to and from a peripheral device (e.g., an audio device), a universal serial bus (USB) terminal, etc.

[0080] The content interface 120 may include a tuner 122. The tuner 122 may receive a broadcast signal from a broadcast receiving antenna or a wired cable and extract a broadcast signal of a channel selected by a user from the broadcast signal. For example, the tuner 122 may pass a broadcast signal having a frequency corresponding to a channel selected by a user among a plurality of broadcast signals received through a broadcast receiving antenna or a wired cable and block broadcast signals having other frequencies.

[0081] In this way, the display device 100 may receive video / audio data from the content source through the content interface 120. In addition, the display device 100 may exchange data with the audio device 200 through the content interface 120.

[0082] The speaker 140 may audibly output an audio signal. The speaker 140 may convert an audio signal output from the controller 180 into sound. For example, the speaker 140 may include a membrane that vibrates according to the audio signal, and may generate sound through the vibration of the membrane.

[0083] The speaker 140 may include a left surround speaker disposed on the left side of the display device 100 and a right surround speaker disposed on the right side of the display device 100 to output stereo sound.

[0084] The display 150 includes a display panel 152 that visually displays an image and a display driver 151 that drives the display panel 152 .

[0085] As described above, the display apparatus 100 may reconstruct a plurality of images included in video data, and may continuously display the plurality of images.

[0086] The display driver 151 may transmit an analog signal (driving signal) for displaying each of the reconstructed plurality of images on the display panel 152 to the display panel 152 .

[0087] The display driver 151 may transmit a driving signal to each of a plurality of pixels included in the display panel 152. Each of the plurality of pixels of the display panel 152 may emit light according to the driving signal, and light emitted from the plurality of pixels may be combined to form a single image.

[0088] The display panel 152 may emit light according to a driving signal received from the display driver 151 , and display an image.

[0089] The display panel 152 may include pixels, each of which is used as a unit for displaying an image. Each pixel may receive a drive signal for displaying an image from the display driver 151, and may output an optical signal corresponding to the received drive signal. In this way, the optical signals output from the plurality of pixels P are combined so that one image may be displayed on the display panel 152.

[0090] The display device 100 may include various types of display panels 152 for displaying images.

[0091] For example, the display device 100 may include a non-emissive display panel that displays an image by transmitting or blocking light emitted from a light source (backlight unit). A liquid crystal display panel is a typical non-emissive display panel.

[0092] refer to Figure 3 , the display panel 152 may include a liquid crystal panel 152a and a backlight unit 152b. The backlight unit 152b may include a plurality of light sources capable of emitting white light including red light, green light, and blue light. The liquid crystal panel 152a may selectively transmit the red light, green light, and blue light emitted from the backlight unit 152b. For example, the red sub-pixel of the liquid crystal panel 152a may selectively transmit the red light and block the green light and the blue light. The green sub-pixel of the liquid crystal panel 152a may selectively transmit the green light and block the blue light and the red light. The blue sub-pixel of the liquid crystal panel 152a may selectively transmit the blue light and may block the red light and the green light.

[0093] The display driver 151 may include a liquid crystal panel driver 151a for driving the liquid crystal panel 152a and a dimming driver 151b for driving the backlight unit 152b. The liquid crystal panel driver 151a may output a driving signal for forming an image to the liquid crystal panel 152a. The intensity (or amount of light) of each of the plurality of sub-pixels passing through the liquid crystal panel 152a is adjusted by the driving signal of the liquid crystal panel driver 151a, and an image is formed by the light passing through each of the plurality of sub-pixels. The dimming driver 151b may output a dimming signal for locally adjusting the brightness of the backlight unit 152b to the backlight unit 152b. The intensity (or amount of light) of the light emitted from the backlight unit 152b is locally adjusted by the dimming signal, so that the contrast of the image displayed on the liquid crystal panel 152a can be improved.

[0094] The dimming driver 151b and the liquid crystal panel driver 151a may operate the display panel 152. For example, the dimming driver 151b and the liquid crystal panel driver 151a may drive the display panel 152 to display an image on a portion of the display panel 152. The dimming driver 151b may drive some light sources included in the backlight unit 152b to locally emit light, and the liquid crystal panel driver 151a may drive the liquid crystal panel 152a to locally transmit light.

[0095] As another example, the display device 100 may include a self-emissive display panel that displays an image using a device that emits light by itself. An OLED panel or a QD display panel is a typical self-emissive display panel.

[0096] refer to Figure 4 , the display panel 152 includes a light emitting diode (LED) panel 152c. The LED panel 152c may include a red LED capable of emitting red light, a green LED capable of emitting green light, and a blue LED capable of emitting blue light. Each of the LEDs may be used as a sub-pixel. The red, green, and blue LEDs may be used as red sub-pixels, green sub-pixels, and blue sub-pixels, respectively. The QD display panel may include red, green, and blue quantum dots, and each of the quantum dots may be used as a sub-pixel.

[0097] The display driver 151 includes an LED driver 151c. The LED driver 151c can output a driving signal for forming an image to the LED panel 152c. Through the driving signal of the LED panel 152c, a driving current is supplied to the red, green, and blue LEDs, and the intensity (or light amount) of the light emitted from each of the red, green, and blue LEDs is adjusted. An image can be formed by the light emitted from the LEDs.

[0098] The LED driver 151c may locally operate the display panel 152. For example, the LED driver 151c may drive the display panel 152 to display an image on a portion of the display panel 152. The LED driver 151c may supply a driving current only to some light emitting diodes in a portion generating an image.

[0099] As such, the display panel 152 may be partially operated according to a driving signal from the display driver 151. In other words, an image may be displayed on a portion of the display panel 152.

[0100] Communication interface 160 may receive video / audio data from a content source.

[0101] The communication interface 160 may include a wired communication module 161 for receiving video / audio data from a content source in a wired manner, and a wireless communication module 162 for receiving video / audio data from a content source in a wireless manner.

[0102] The wired communication module 161 may use various communication standards to receive data streams from a content source. For example, the wired communication module 161 may use Ethernet (Ethernet, IEEE 802.3 technical standard) to receive video / audio data from a content source.

[0103] The wired communication module 161 may include a communication circuit (eg, a network interface controller) including a processor and / or a memory that modulates / demodulates data for wired communication.

[0104] The wireless communication module 162 may use various types of wireless communications to exchange wireless signals with the audio device 200. In addition, the wireless communication module 162 may receive a data stream from a content source via the audio device 200.

[0105] For example, the wireless communication module 162 can use Wi-Fi (WiFi TM , IEEE 802.11 technical standard) wireless communication to access the wireless repeater and receive video / audio data from the content source via the wireless repeater.

[0106] Wi-Fi wireless communication can provide peer-to-peer communication between nodes (e.g., between a display device and an audio device) without going through a wireless repeater. This direct communication using Wi-Fi wireless communication is called "WiFi P2P" or "WiFidirect." The wireless communication module 162 can use the Wi-Fi P2P communication standard to exchange data with the audio device 200.

[0107] In addition, the wireless communication module 162 can use Bluetooth TM, IEEE 802.15.1 technical standard) or ZigBee (ZigBee TM , IEEE 802.15.4 technical standard) wireless communication to exchange data with the audio device 200. Alternatively, the wireless communication module 162 may exchange data with the audio device 200 using near field communication (NFC).

[0108] The wireless communication module 162 may include a communication circuit (eg, a wireless network interface controller) including a processor and / or memory that decodes / encodes data for wireless communication with an antenna that transmits and receives wireless signals.

[0109] In this way, the display device 100 may exchange data with the audio device 200 through the communication interface 160 .

[0110] The storage device 170 includes a storage medium 171 storing programs and data for controlling the operation of the display device 100. In addition, the storage device 170 may include a management circuit including a processor and / or a memory for managing data stored in the storage medium 171.

[0111] For example, the storage medium 171 may store an operating system (OS) for managing resources included in the display device 100 (e.g., software and / or hardware of the display device 100), a video player for decoding video data / audio data and reconstructing images, a management application for managing the display device 100, and the like.

[0112] The storage medium 171 may store video data / audio data displayed by the display device 100. For example, the storage medium 171 may store an image file obtained by compressing / encoding video data / audio data.

[0113] The storage medium 171 may include a nonvolatile memory for retaining stored programs and data even when power is off. For example, the storage medium 171 may include a flash memory, a solid state drive (SSD), a magnetic disk drive (hard disk drive), or an optical disk drive.

[0114] The controller 180 may include a processor 181 for processing video / audio data and a memory 182 for memorizing / storing programs and data for processing video / audio data. In addition, the controller 180 may include hardware such as the processor 181 and the memory 182, and software such as an operating system (OS), a video player, and an audio player.

[0115] The memory 182 may store programs and data for processing video / audio data, and may temporarily store temporary data generated when processing video / audio data.

[0116] The memory 182 may include nonvolatile memory for long-term data storage, such as read-only memory (ROM) and flash memory, and volatile memory for temporary data storage, such as static random access memory (S-RAM), dynamic random access memory (D-RAM), etc.).

[0117] The memory 182 may include one memory chip (including a plurality of memory cores) or may include a plurality of memory chips.

[0118] The processor 181 may decode the video / audio data received through the content interface 120 and / or the communication interface 160 to reconstruct a plurality of images and an audio signal from the video / audio data. The plurality of images may be displayed on the display 150. The sound according to the audio signal may be output through the speaker 140. The processor 181 may transmit the audio signal to the audio device 200 through the content interface 120 and / or the communication interface 160, so that the sound according to the audio signal is output through the audio device 200.

[0119] The processor 181 may include one processor chip (including multiple cores) or may include multiple processor chips. For example, the processor 181 may include an image processor that processes video / audio data, a microcontroller that processes a user's touch input and controls the operation of the display device 100, etc. In addition, the processor 181 may be provided separately from the memory 182, or may be provided integratedly with the memory 182.

[0120] Regarding power, the display apparatus 100 may be set to three states, and the processor 181 may perform different operations depending on the power state of the display apparatus 100 .

[0121] The display device 100 may be set to an "off state" in which the plug of the display device 100 is not plugged into a power outlet. In the "off state", power is not supplied to the display device 100, and the processor 181 may not perform any operation.

[0122] The display apparatus 100 may be set to a “standby state” in which a plug of the display apparatus 100 is inserted into a power outlet and a power supply command (or an operation command) from a user is not input.

[0123] In the “standby state”, power may be supplied to some components in the display device 100. In other words, some components of the display device 100 may be activated in the “standby state”. For example, in the “standby state”, power may not be supplied to the display 150 and the speaker 140.

[0124] On the other hand, in the "standby state", power may be supplied to the user input 110 to receive a power command from the user. In the "standby state", power may be supplied to the content interface 120 and / or the communication interface 160 to receive video / audio data.

[0125] Power may be supplied to components of the processor 181 to process user input and / or video / audio data. For example, power may not be supplied to an image processor that processes video / audio data, but may be supplied to a microcomputer that generates a control signal for controlling the display device 100. As another example, power may not be supplied to components of the processor 181 that process video / audio data, but may be supplied to components that generate a control signal for controlling the display device 100.

[0126] In addition, in the standby state of the display device 100, the processor 181 may receive operation information of the audio device 200 from the audio device 200 through the content interface 120 and / or the communication interface 160, and control the display 150 to display the received operation information of the audio device 200. For example, in the "standby state", the microcomputer of the processor 180 may obtain the operation information of the audio device 200, and control the display 150 to display an image corresponding to the operation information of the audio device 200. As another example, in the "standby state", some areas of the processor 180 may obtain the operation information of the audio device 200, and control the display 150 to display an image corresponding to the operation information of the audio device 200.

[0127] The display device 100 may be set to an "on state" in which a plug of the display device 100 is plugged into a power outlet and a power supply command (or operation command) of a user is input. In the "on state", power may be supplied to all components included in the display device 100. In the "on state", power may be supplied not only to the user input device 110 and the processor 181 but also to the display 150 and the speaker 140. In the "on state", the processor 181 may reconstruct a plurality of images from video data, and the display 150 may display a plurality of images.

[0128] The controller 180 including the processor 181 and the memory 182 may perform various operations described below.

[0129] Figure 5 A configuration of an audio device according to an embodiment is shown.

[0130] refer to Figure 5The audio device 200 includes a user input 210 that receives a user input from a user, a content interface 220 that receives audio data from a content source, a speaker 240 that outputs audio, a display 250 that displays the operation of the audio device 200, a communication interface 260 that sends and receives data to and from an external device, a storage device 270 that stores a program and data for controlling the operation of the audio device 200, and a controller 280 that processes audio data and controls the operation of the audio device 200.

[0131] The user input 210 may receive a user input from a user and transmit an electrical signal corresponding to the user input to the controller 280. The user input 210 may include an input button 211 and a signal receiver 212, and may have the same configuration as the user input 110 of the display device 100.

[0132] The content interface 220 may include a transmission / reception terminal 221. The transmission / reception terminal 221 may receive audio data from a content source or may transmit and receive audio data to and from a peripheral device (e.g., a display device). The transmission / reception terminal 221 may include an HDMI terminal.

[0133] Speaker 240 may audibly output audio signals.

[0134] The speaker 240 may include a plurality of speakers. For example, in order to output surround sound, the speaker 240 may include a left surround speaker disposed on the left side of the audio device 200 and a right surround speaker disposed on the right side of the audio device 200. In addition, the speaker 240 includes a tweeter capable of outputting high-frequency sound, a mid-range speaker capable of outputting mid-frequency sound, and a woofer capable of outputting low-frequency sound, so as to output sounds of various frequency bands.

[0135] In addition, the speaker 240 may include an audio amplifier that amplifies an audio signal to output sounds of various intensities.

[0136] The display 250 includes an LED 251 that displays the operation of the audio device 200. The audio device 200 may omit a display panel for displaying an image to ensure a compact appearance.

[0137] The LED 251 may use the color of light or the blinking of light to display the operation of the audio device 200. For example, the LED 251 may display the "standby state" or "on state" of the audio device 200. In addition, the LED 251 may display the state of waiting for user input or the operation of the audio device 200 to reproduce music.

[0138] The communication interface 260 may exchange data with an external device such as the display apparatus 100. The communication interface 260 may include a wired communication module 261 and a wireless communication module 262, and may be the same as the communication interface 160 of the display apparatus 100.

[0139] The storage device 270 may store programs and data for controlling the audio device 200. The storage device 270 may include a storage medium 271, and may be the same as the storage device 170 of the display device 100.

[0140] The controller 280 may include a processor 281 for processing audio data and a memory 282 for memorizing / storing a program and data for processing the audio data.

[0141] The memory 282 may store programs and data for processing audio data, and may be the same as the memory 182 of the display device 100 .

[0142] The processor 281 may process the audio signal through the content interface 220 and / or the communication interface 260. The audio signal processed by the processor 281 may be output through the speaker 240.

[0143] Regarding power, the audio device 200 may be set to three states including an “off state”, a “standby state”, and an “on state”, and the processor 281 may perform different operations depending on the power state of the audio device 200 .

[0144] For example, in the “on state”, the processor 281 may receive an audio signal from the display device 100 through the content interface 220 , and output sound according to the audio signal through the speaker 240 .

[0145] In addition, in the “on state”, the processor 281 may send operation information indicating detailed operation of the audio device 200 to the display device 100 through the content interface 220 and / or the communication interface 260. The audio device 200 includes an LED 251 that displays the operation of the audio device 200, but the LED 251 has limitations in displaying detailed information of the audio device 200. Therefore, the processor 281 may send the operation information of the audio device 200 to the display device 100 so that the detailed information of the audio device 200 is displayed on the display device 100.

[0146] The controller 280 including the processor 281 and the memory 282 may perform various operations described below.

[0147] Figure 6 Operations of the display device and the audio device according to the embodiment are shown. Figure 7 Shown according to Figure 6The illustrated operation displays an image on the display device.

[0148] refer to Figure 6 and Figure 7 , the operations of the display device 100 and the audio device 200 will be described (1000).

[0149] The display device 100 can be connected to the audio device 200 via the content interface 120 and / or the communication interface 260, and the audio device 200 can also be connected to the display device 100 via the content interface 220 and / or the communication interface 260. In addition, the display device 100 can be set to an "on state" or a "standby state". The audio device 200 can also be set to an "on state" or a "standby state".

[0150] The audio device 200 transmits operation information to the display device 100 (1010).

[0151] In the "on state" or "standby state", the controller 280 of the audio device 200 may collect operation information of components included in the audio device 200. For example, the controller 280 may collect identification information of the audio device 200 (e.g., the model name of the audio device), the volume of the speaker 240, the connection method with the display device 100, the sound output mode of the speaker 240 (e.g., surround mode or mono mode), etc.

[0152] In the "on state", the content interface 220, the communication interface 260 and the controller 280 of the audio device 200 may be activated. In addition, in the "standby state", the content interface 220 and / or the communication interface 260 may be activated, and the controller 280 may be partially activated.

[0153] The controller 280 may transmit the collected operation information of the audio device 200 to the display device 100 through the content interface 220 and / or the communication interface 260 .

[0154] The display device 100 receives operation information of the audio device 200 ( 1020 ).

[0155] In the "on state" or "standby state", the controller 180 of the display device 100 can obtain the operation information of the audio device 200 through the content interface 120 and / or the communication interface 160. In the "on state", the content interface 120, the communication interface 160 and the controller 180 of the display device 100 can be activated. In addition, in the "standby state", the content interface 120 and / or the communication interface 160 can be activated, and the controller 180 can also be partially activated.

[0156] The display device 100 displays operation information of the audio device 200 ( 1030 ).

[0157] The controller 180 of the display device 100 may control the display 150 to display the operation information of the audio device 200. For example, the microcomputer of the processor 181 may control the display 150 to display an image corresponding to the operation information of the audio device 200.

[0158] The controller 180 may control the display 150 to display operation information of the audio device 200 on a portion of the display panel 152 .

[0159] The controller 180 may control the display 150 to display the operation information of the audio device 200 at the lower portion of the display panel 152, such as Figure 7 shown.

[0160] By displaying the operation information of the audio device 200 at the lower portion of the display panel 152 in the “on state” of the display device 100 , the display device 100 can prevent the display of content on the display panel 152 from being interrupted.

[0161] In addition, in the "standby state" of the display device 100, the display device 100 can control the display 150 to display an image with a bright color (such as white) on a black background screen that does not output light, thereby minimizing the power consumed by the display panel 152. For example, the controller 180 can control the display 150 to emit light only from the lower part of the backlight unit 152b and pass the light through the lower part of the liquid crystal panel 152a. As another example, the controller 180 can control the display 150 to emit light only at the lower part of the LED panel 152c.

[0162] refer to Figure 7 The controller 180 can control the display 150 to display an image object 501 representing identification information of the audio device 200, an image object 502 representing the volume of the speaker 240 of the audio device 200, an image object 503 representing a connection method with the audio device 200, an image object 504 representing a sound output mode of the speaker 240, and the like.

[0163] The audio device 200 obtains user input (1040).

[0164] When the display device 100 displays the operation information of the audio device 200, the user may input a user input through the user input 210 of the audio device 200. For example, the user may input a user input for reproducing audio, increasing the volume of the speaker 240, or changing the sound output mode of the speaker 240 through the input button 211 of the audio device 200.

[0165] The controller 280 of the audio device 200 may acquire a user input from the user inputter 210 and may control the audio device 200 in response to the user input. For example, the controller 280 may reproduce audio, increase the volume of the speaker 240, or change a sound output mode of the speaker 240.

[0166] The audio device 200 transmits the updated operation information to the display device 100 (1050).

[0167] The controller 280 of the audio device 200 may collect the operation information updated after the user input, and may transmit the updated operation information of the audio device 200 to the display device 100 through the content interface 220 and / or the communication interface 260. For example, the controller 280 may transmit the operation information that has been changed from reproducing audio, increasing the volume of the speaker 240, or changing the sound output mode of the speaker 240 to the display device 100.

[0168] The display device 100 receives the updated operation information of the audio device 200 ( 1060 ), and displays the updated operation information of the audio device 200 ( 1070 ).

[0169] The controller 180 of the display device 100 may receive updated operation information of the audio device 200 through the content interface 120 and / or the communication interface 160. In addition, the controller 180 may control the display 150 to display operation information changed from reproducing audio, increasing the volume of the speaker 240, or changing the sound output mode of the speaker 240.

[0170] As described above, the display device 100 can receive the operation information of the audio device 200 and display the operation information of the audio device 200. Therefore, the display device 100 can provide the user with detailed information about the audio device 200 that does not include a display panel. Even when the audio device 200 includes a display panel, the display device 100 can allow detailed information about the audio device 200 to be displayed on the display panel 152 with high visibility. In addition, the user can easily obtain information about the audio device 200 through the display device 100.

[0171] Figure 8 Operations of the display device and the audio device according to the embodiment are shown. Fig. 9 Shown according to Figure 8 The illustrated operation displays an image on the display device.

[0172] refer to Figure 8 and Fig. 9 , the operations of the display device 100 and the audio device 200 will be described (1100).

[0173] The display device 100 may be connected to the audio device 200 and may be set to an “on state” or a “standby state.” In addition, the audio device 200 may be set to an “on state.”

[0174] The audio device 200 transmits operation information and information about an application related to audio reproduction (hereinafter referred to as “audio application information”) to the display device 100 ( 1110 ).

[0175] The controller 280 of the audio device 200 may collect operation information about the audio device 200 , including identification information of the audio device 200 , volume of the speaker 240 , a connection method with the display device 100 , and a sound output mode of the speaker 240 .

[0176] In addition, the controller 280 may collect information about applications related to audio reproduction stored in the storage device 270. The storage device 270 may store a radio broadcast application that reproduces public radio broadcasts, an Internet radio application that plays Internet audio streaming (Internet music broadcasting), and an audio player that reproduces audio files stored in the storage device 270 or an external storage device, etc.

[0177] The controller 280 may transmit operation information and audio application information of the audio device 200 to the display device 100 through the content interface 220 and / or the communication interface 260 .

[0178] The display device 100 receives operation information and audio application information of the audio device 200 ( 1120 ).

[0179] The controller 180 of the display device 100 may acquire operation information and audio application information of the audio device 200 through the content interface 120 and / or the communication interface 160 .

[0180] Operation 1120 may be similar to Figure 6 Operation 1020 is shown.

[0181] The display device 100 displays operation information and audio application information of the audio device 200 ( 1130 ).

[0182] The controller 180 of the display device 100 may control the display 150 to display the operation information and the audio application information of the audio device 200 on a portion of the display panel 152. Fig. 9As shown, the controller 180 can display image objects 501, 502, 503 and 504 representing operation information of the audio device 200, an image object 505 representing a radio application stored in the audio device 200, an image object 506 representing an audio streaming application stored in the audio device 200, and a play list of an audio player stored in the audio device 200 at the lower portion of the display panel 152.

[0183] When the display device 100 displays the operation information and the audio application information of the audio device 200 , the display device 100 acquires a user input for the audio device 200 ( 1140 ).

[0184] The user may input a user input for the audio device 200 through the user inputter 110 of the display device 100. The user may input a user input for reproducing the audio of the audio device 200, increasing the volume of the speaker 240, or changing the sound output mode of the speaker 240 through the remote control 112a of the display device 100. In addition, the user may input a user input for executing a radio application or an audio streaming application of the audio device 200 through the remote control 112a of the display device 100.

[0185] The user can select the image object 502 representing the volume of the audio device 200 and use the remote control 112a to adjust the volume of the audio device 200. In addition, the user can use the remote control 112a to execute the radio application of the audio device 200. In other words, the image objects 501, 502, 503, 504, 505, and 506 displayed on the display 150 can be used as a control menu for acquiring user input. The display device 100 can acquire user input through the image objects (or control menus) 501, 502, 503, 504, 505, and 506 displayed on the display 150 and the remote control 112a.

[0186] The controller 180 of the display device 100 may acquire a user input to the audio device 200 through the user inputter 110 .

[0187] The display device 100 transmits information about a user input (hereinafter referred to as 'user input information') to the audio device 200 (1150).

[0188] The controller 180 of the display device 100 may transmit user input information to the audio device 200 through the content interface 120 and / or the communication interface 160 in response to a user input to the audio device 200 .

[0189] The audio device 200 receives user input information from the display device 100 ( 1160 ).

[0190] The controller 280 of the audio device 200 may receive user input information from the display device 100 through the content interface 220 and / or the communication interface 260 .

[0191] The audio device 200 operates in response to a user input input to the display device 100 ( 1170 ).

[0192] The controller 280 of the audio device 200 may receive user input information and acquire a user input based on the user input information.

[0193] The controller 280 may control the audio device 200 in response to a user input input through the display device 100. For example, the controller 280 may reproduce audio, increase the volume of the speaker 240, or change a sound output mode of the speaker 240. Alternatively, the controller 280 may execute a radio application or an audio streaming application stored in the storage device 270.

[0194] As described above, the display device 100 can display the audio application information of the audio device 200 and obtain the user input from the user. Therefore, the display device 100 can allow the user to control the audio device 200 through the user input 110 of the display device 100. The display device 100 can display various images through the display 150 so that the user can check various settings and commands that can be input to the audio device 200 through the display 150. In addition, the user can control the audio device 200 using the remote control 112a of the display device 100 at a remote site.

[0195] Fig.10 The operation of the display device according to the embodiment is shown.

[0196] refer to Fig.10 , the operation of the display device 100 will be described (1200).

[0197] The display device 100 may be connected to the audio device 200 and may be set to an “on state” or a “standby state”.

[0198] The display device 100 receives, stores, and displays operation information of the audio device 200 ( 1210 ).

[0199] The display device 100 may receive the operation information of the audio device 200 through the content interface 120 and / or the communication interface 160, and may also store the operation information of the audio device 200. The controller 180 of the display device 100 may control the storage device 170 to store the operation information of the audio device 200.

[0200] In addition, in the “standby state” of the display device 100 , the controller 180 may control the display 150 to display operation information of the audio device 200 . Specifically, the controller 180 may control the display 150 to display the operation information on a portion of the display panel 152 .

[0201] The display device 100 determines whether the time for displaying the operation information of the audio device 200 is greater than or equal to a reference time (1220).

[0202] The controller 180 may operate a timer in response to operation information being displayed on a portion of the display panel 152 , and count a time for which the operation information of the audio device 200 is displayed on the portion of the display panel 152 .

[0203] The controller 180 may compare the time at which the operation information of the audio device 200 is displayed on the portion of the display panel 152 with a reference time. The reference time may be set through experiments or experience.

[0204] Based on a comparison of the time at which the operation of the audio device 200 is displayed and the reference time, the controller 180 may determine whether the time at which the operation information of the audio device 200 is displayed is greater than or equal to the reference time.

[0205] In response to the time for displaying the operation information of the audio device 200 being less than the reference time (No in operation 1220 ), the display device 100 continues to display the operation information of the audio device 200 .

[0206] In response to the time for displaying the operation information of the audio device 200 being greater than or equal to the reference time (Yes in operation 1220 ), the display device 100 may turn off the display panel 152 ( 1230 ).

[0207] In order to reduce power consumed in displaying the operation information of the audio device 200 , the controller 180 may turn off the display panel 152 in response to the display time of the operation information of the audio device 200 being greater than or equal to the reference time.

[0208] After the display panel 152 is turned off, the display device 100 determines whether operation information of the audio device 200 has been received (1240).

[0209] In response to the operation of the audio device 200 having changed according to the user input, the audio device 200 may update the operation information based on the changed operation and transmit the updated operation information. Specifically, the audio device 200 may transmit the updated operation information each time the operation information is updated.

[0210] The controller 180 of the display device 100 may determine whether updated operation information has been received from the audio device 200 .

[0211] In response to receiving the operation information of the audio device 200 (Yes in operation 1240 ), the display device 100 stores the operation information of the audio device 200 ( 1250 ).

[0212] In response to receiving the operation information of the audio device 200, it is determined that the operation of the audio device 200 has changed.

[0213] The controller 180 may store new operation information of the audio device 200 or updated operation information of the audio device 200 in the storage device 170 .

[0214] Thereafter, the display device 100 displays operation information of the audio device 200 (1260).

[0215] The controller 180 may control the display 150 to display updated operation information of the audio device 200 on a portion of the display panel 152 .

[0216] Thereafter, the display apparatus 100 may determine again whether the time for displaying the operation information of the display apparatus 100 is greater than or equal to the reference time.

[0217] In response to not receiving the operation information of the audio device 200 (NO in operation 1240 ), the display device 100 determines whether a user input has been acquired ( 1270 ).

[0218] The controller 180 may determine whether a user input has been input through the user inputter 110 in the off state of the display panel 152. In other words, the controller 180 may determine whether a user has input a new user input after the display panel 152 is turned off.

[0219] In response to not acquiring the user input (NO in operation 1270 ), the display apparatus 100 may determine again whether the operation information of the audio apparatus 200 has been received.

[0220] In response to acquiring the user input (Yes in operation 1270 ), the display device 100 determines whether previously stored operation information of the audio device 200 exists in the storage device 170 ( 1280 ).

[0221] Prior to acquisition of the user input, the controller 180 may determine whether the operation information of the audio device 200 to be displayed on the display panel 152 is stored in the storage device 170. In other words, the controller 180 may determine whether the operation information of the audio device 200 is pre-stored in the storage device 170 to display the operation information of the audio device 200 in response to acquisition of the user input.

[0222] In response to the previously stored operation information of the audio device 200 not existing (NO in operation 1280 ), the display device 100 may again determine whether the operation information of the audio device 200 has been received.

[0223] In response to the previously stored operation information of the audio device 200 existing (Yes in operation 1280 ), the display device 100 displays the operation information of the audio device 200 ( 1260 ).

[0224] Thereafter, the display apparatus 100 may determine again whether the time for which the operation information of the audio device 200 is displayed on the display apparatus 100 is greater than or equal to the reference time.

[0225] As described above, the display device 100 can display the operation information of the audio device 200 on a portion of the display panel 152, and can turn off the display panel 152 when the time for displaying the operation information of the audio device 200 is greater than or equal to the reference time. Therefore, in the "standby state", the display device 100 can reduce the power consumed by displaying the operation information of the audio device 200.

[0226] In response to the operation information of the audio device 200 being updated during the off state of the display panel 152, the display device 100 may display the updated operation information of the audio device 200 on the display panel 152. Therefore, the display device 100 may immediately notify the user of a change in operation or setting of the audio device 200.

[0227] In response to a user input being input during the off state of the display panel 152, the display apparatus 100 may display updated operation information of the audio device 200 on the display panel 152. Thus, the display apparatus 100 may provide the user with operation information of the audio device 200 whenever the user desires.

[0228] Fig.11 Operations of the display device and the audio device according to the embodiment are shown.

[0229] refer to Fig.11 , the operations of the display device 100 and the audio device 200 will be described (1300).

[0230] The display device 100 may be connected to the audio device 200 and may be set to an “on state” or a “standby state.” In addition, the audio device 200 may be set to an “on state.”

[0231] The audio device 200 transmits operation information to the display device 100 (1310). The display device 100 receives the operation information of the audio device 200 (1320). The display device 100 displays the operation information of the audio device 200 (1330).

[0232] Operations 1310, 1320, and 1330 may be performed with Figure 6 Operations 1010, 1020, and 1030 are shown to be the same.

[0233] The audio device 200 reproduces audio (1340).

[0234] When the display device 100 displays the operation information of the audio device 200, the audio device 200 may reproduce audio in response to a user input. For example, a user may input a user input (e.g., press a play button) for reproducing audio through an input button 211 of the audio device 200. The controller 280 of the audio device 200 may obtain the user input from the user input 210 and reproduce audio in response to the user input.

[0235] As another example, the user may input a user input for reproducing audio through the remote control 112a of the display device 100. In response to receiving the user input for the audio device 200, the controller 180 of the display device 100 may transmit the user input information to the audio device 200. The audio device 200 may reproduce the audio in response to the user input received from the display device 100.

[0236] The audio device 200 transmits an audio signal based on the audio reproduction to the display device 100 (1350). The audio device 200 outputs sound according to the audio signal (1360).

[0237] The controller 280 of the audio device 200 may reconstruct an audio signal from an audio file or a radio broadcast signal and transmit the audio signal to the display device 100 through the content interface 220 and / or the communication interface 260 .

[0238] In addition, the controller 280 of the audio device 200 may control the speaker 240 to convert the audio signal into sound and output the sound according to the audio signal.

[0239] The audio signal transmitted from the audio device 200 to the display device 100 may be the same as or correspond to the audio signal output from the audio device 200 .

[0240] The display device 100 receives an audio signal from the audio device 200 ( 1370 ).

[0241] The controller 180 of the display apparatus 100 may receive the audio signal through the content interface 120 and / or the communication interface 160 .

[0242] The display apparatus 100 outputs sound according to the audio signal ( 1380 ).

[0243] The controller 180 of the display device 100 may control the speaker 140 to convert the audio signal into sound and output the sound according to the audio signal. The sound output from the display device 100 may be the same as or correspond to the sound output from the audio device 200. For example, the display device 100 may output sound to assist the sound output of the audio device 200. In addition, the display device 100 may output sound to enhance the surround effect of the sound output from the audio device 200.

[0244] As described above, the display device 100 may receive an audio signal from the audio device 200 and output sound according to the audio signal together with the audio device 200. In other words, the display device 100 may assist the audio device 200. Since the display device 100 outputs a sound that is the same as or corresponds to the sound of the audio device 200, the display device 100 and the audio device 200 may provide a richer sound to the user than the sound output by the audio device 200 alone.

[0245] Fig.12 Operations of the display device and the audio device according to the embodiment are shown. Fig.13 Shown according to Fig.12 The illustrated operation displays an image on the display device.

[0246] refer to Fig.12 and Fig.13 , the operations of the display device 100 and the audio device 200 will be described (1400).

[0247] The display device 100 may be connected to the audio device 200 and may be set to an “on state” or a “standby state.” In addition, the audio device 200 may be set to an “on state.”

[0248] The audio device 200 reproduces audio (1410). The audio device 200 transmits an audio signal based on the reproduced audio to the display device 100 (1420). The audio device 200 outputs sound according to the audio signal (1430).

[0249] Operations 1410, 1420, and 1430 may be performed with Fig.11 Operations 1350, 1360, and 1370 are shown to be the same.

[0250] The display device 100 receives an audio signal from the audio device 200 ( 1440 ).

[0251] The controller 180 of the display apparatus 100 may receive the audio signal through the content interface 120 and / or the communication interface 160 .

[0252] The display device 100 visualizes the audio signal received from the audio device 200 ( 1450 ).

[0253] The controller 180 of the display device 100 may execute a display application for visualizing an audio signal or sound (hereinafter referred to as a "sound visualization application") in response to a user input. For example, the display application for visualizing an audio signal or sound may be stored in the storage device 170. In the "on state" of the display device 100, the controller 180 may control the display 150 to display a plurality of executable display applications, and in response to a user's selection through the remote control 112a, the sound visualization application may be executed.

[0254] When executing the sound visualization application, the controller 180 can control the display 150 to display shapes, letters, numbers or symbols corresponding to the audio signal or sound. For example, the controller 180 can visualize the waveform of the sound, the frequency of the sound, the sound intensity of each frequency, the rhythm, melody and harmony.

[0255] The controller 180 can visualize the position where the audio device 200 outputs the sound and the intensity of the output sound. Fig.13 As shown, the controller 180 may control the display 150 to display an image 510 (eg, a photographed picture of the audio device) representing the audio device 200 .

[0256] The controller 180 may display an image representing the sound output from the audio device 200 depending on the audio signal received from the audio device 200. Fig.13 As shown, depending on the audio signal, the controller 180 can control the display 150 to display a first image 511 representing the sound output from the center speaker (e.g., a woofer) of the audio device 200, a second image 512 representing the sound output from the left speaker of the audio device 200, and a third image 513 representing the sound output from the right speaker of the audio device 200.

[0257] The controller 180 may control the speaker 140 to output sound according to the audio signal received from the audio device 200. In addition, the controller 180 may display an image representing the sound output from the speaker 140 depending on the audio signal received from the audio device 200. Fig.13 As shown, the controller 180 may control the display 150 to display a fourth image 514 representing sound output from a left speaker and a fifth image 515 representing sound output from a right speaker, depending on the audio signal.

[0258] As described above, the display device 100 may display an image representing the sound output by the audio device 200. Therefore, the display device 100 may provide information about the position and / or direction in which the sound is output from the audio device 200 to the user.

[0259] Fig.14A display device according to an embodiment and a plurality of audio devices connected to the display device are shown.

[0260] refer to Fig.14 The display device 100 may be connected to the first audio device 200a and the second audio device 200b in a wired and / or wireless manner. Figure 1 , Figure 2 , Figure 3 and Figure 4 The display device shown is the same, and the first audio device 200a and the second audio device 200b can each be connected to Figure 1 and Figure 5 The audio devices shown are the same.

[0261] The display device 100 may be connected to the first audio device 200a and the second audio device 200b through the content interface 120 and / or the communication interface 160. The display device 100 may be connected to the first audio device 200a and the second audio device 200b in a wired manner. For example, the display device 100 may be connected to each of the first audio device 200a and the second audio device 200b through an HDMI terminal.

[0262] The display device 100 may be wirelessly connected to each of the first audio device 200a and the second audio device 200b. The display device 100 may be connected to each of the first audio device 200a and the second audio device 200b using the same wireless communication. For example, the display device 100 may be independently connected to each of the first audio device 200a and the second audio device 200b using Bluetooth wireless communication.

[0263] In addition, the display device 100 can be connected to each of the first audio device 200a and the second audio device 200b using different wireless communications. For example, the display device 100 can be connected to the first audio device 200a using Wi-Fi wireless communication, and can be connected to the second audio device 200b using Bluetooth wireless communication.

[0264] The display device 100 may be connected to the first audio device 200a in a wired manner, and may be connected to the second audio device 200b in a wireless manner through the wireless communication module 162. For example, the display device 100 may be connected to the first audio device 200a through an HDMI terminal, and may be connected to the second audio device 200b through Bluetooth wireless communication.

[0265] The display device 100 may output sound through the first audio device 200a and the second audio device 200b. For example, the display device 100 may send an audio signal to each of the first audio device 200a and the second audio device 200b through the content interface 120 and / or the communication interface 160, and each of the first audio device 200a and the second audio device 200b may output sound according to the audio signal.

[0266] The display device 100 transmits the same audio signal to the first audio device 200a and the second audio device 200b, or may transmit audio signals (left and right audio signals, such as middle and low frequency audio signals) corresponding to the first and second audio devices 200a and 200b, respectively.

[0267] In this way, the display apparatus 100 outputs sounds through the plurality of audio devices 200a and 200b, so that the display apparatus 100 can provide a richer sound to the user.

[0268] Fig.15 Operations of a display device and a plurality of audio devices according to an embodiment are illustrated. Fig.16 Shown according to Fig.15 The illustrated operation displays an image on the display device.

[0269] refer to Fig.15 and Fig.16 , the operation of the display device 100 and the plurality of audio devices 200a and 200b will be described (1500).

[0270] The display device 100 may be connected to the first audio device 200a and the second audio device 200b, and may be set to an “on state” or a “standby state.” In addition, the first audio device 200a and the second audio device 200b may be set to an “on state.”

[0271] The first audio device 200a transmits operation information to the display device 100, and the display device 100 receives the operation information of the first audio device 200a (1510).

[0272] Operation 1510 may be performed with Figure 6 Operations 1010 and 1020 are shown to be the same.

[0273] The second audio device 200b transmits operation information to the display device 100, and the display device 100 receives the operation information of the second audio device 200b (1520).

[0274] Operation 1520 may be performed with Figure 6 Operations 1010 and 1020 are shown to be the same.

[0275] The display device 100 displays operation information of the first audio device 200a and operation information of the second audio device 200b (1530).

[0276] The controller 180 of the display device 100 may control the display 150 so that a portion of the display panel 152 is activated and operation information of the first audio device 200 a and operation information of the second audio device 200 b are displayed in the activated portion of the display panel 152 .

[0277] refer to Fig.16 , the controller 180 may control the display 150 so that operation information of the first audio device 200a and operation information of the second audio device 200b are displayed on the lower part of the display panel 152. The controller 180 may control the display 150 so that image objects 501 and 521 respectively indicating a plurality of pieces of identification information on the first audio device 200a and the second audio device 200b, image objects 502 and 522 respectively indicating speaker volumes of the first audio device 200a and the second audio device 200b, image objects 503 and 523 respectively indicating connection methods of the first audio device 200a and the second audio device 200b, and image objects 504 and 524 respectively indicating sound output modes of the first audio device 200a and the second audio device 200b are displayed.

[0278] The first audio device 200a reproduces audio (1540).

[0279] Operation 1540 may be performed with Fig.11 Operation 1340 is shown to be the same.

[0280] The first audio device 200a transmits an audio signal based on audio reproduction to the display device 100, and the display device 100 receives the audio signal from the first audio device 200a (1550).

[0281] The controller of the first audio device 200a may transmit the audio signal to the display device 100 through the content interface and / or the communication interface, and the controller 180 of the display device 100 may receive the audio signal.

[0282] The display apparatus 100 transmits an audio signal reproduced based on the audio of the first audio device 200a to the second audio device 200b, and the second audio device 200b receives the audio signal from the display apparatus 100 (1560).

[0283] The controller 180 of the display device 100 may receive an audio signal based on the audio reproduction from the first audio device 200a through the content interface and / or the communication interface, and transmit the audio signal received from the first audio device 200a to the second audio device 200b. The controller of the second audio device 200b may receive an audio signal based on the audio reproduction of the first audio device 200a.

[0284] The first audio device 200a outputs sound according to the reproduced audio signal (1570).

[0285] The controller of the first audio device 200a may control the speaker to convert the audio signal into sound and output the sound according to the audio signal.

[0286] The display device 100 outputs sound according to the audio signal received from the first audio device 200a (1580).

[0287] The controller 180 of the display device 100 may control the speaker 140 to convert the audio signal into sound and output the sound according to the audio signal.

[0288] The second audio device 200b outputs sound according to the audio signal received from the display device 100 (1590).

[0289] The controller of the second audio device 200b may control the speaker to convert the audio signal into sound and output the sound according to the audio signal.

[0290] As described above, the display device 100 can be connected to the plurality of audio devices 200a and 200b to display the corresponding plurality of pieces of operation information of the plurality of audio devices 200a and 200b. Therefore, the display device 100 can provide the user with detailed information of the plurality of audio devices 200a and 200b without including a display panel.

[0291] In addition, the display device 100 may receive an audio signal from one of the audio devices 200a and 200b and transmit the received audio signal to the other audio device 200b. The display device 100 and the plurality of audio devices 200a and 200b may each output sounds that are identical or correspond to each other between the display device 100 and the plurality of audio devices 200a and 200b. As a result, the display device 100 and the plurality of audio devices 200a and 200b may provide a user with richer sounds than the sound output by only one audio device 200a.

[0292] Fig.17 A display device, an audio device connected to the display device, and a user equipment connected to the audio device according to an embodiment are shown.

[0293] refer to Fig.17, the display device 100 may be connected to the audio device 200 in a wired and / or wireless manner, and may output sound through the audio device 200. The display device 100 may be connected to the audio device 200 in a wired and / or wireless manner. Figure 1 , Figure 2 , Figure 3 and Figure 4 The audio device 200 may be similar to the display device shown in FIG. Figure 1 and Figure 5 The audio devices shown are the same.

[0294] In addition, the user device 300 may also be connected to the audio device 200 in a wired and / or wireless manner, and may output sound through the audio device 200. The user device 300 may be a computing device or a communication device carried by a user and provided separately from the display device 100. For example, the user device 100 may be a handheld terminal, a multimedia terminal, a personal digital assistant (PDA), a tablet computer and a laptop computer, a smart watch, smart glasses, etc.

[0295] The user device 300 may be wirelessly connected to the audio apparatus 200. The user device 300 may transmit an audio signal to the audio apparatus 200, and the audio apparatus 200 may output a sound according to the audio signal received from the user device 300.

[0296] The display device 100 may be connected to the audio device 200 through the content interface 120 and / or the communication interface 160 , and the user equipment 300 may be connected to the audio device 200 through the communication interface.

[0297] The display device 100 may be connected to the audio device 200 in a wired manner, and the user device 300 may be connected to the audio device 200 in a wireless manner. For example, the display device 100 may be connected to the audio device 200 through an HDMI terminal, and the user device 300 may be connected to the audio device 200 using Wi-Fi wireless communication or Bluetooth wireless communication.

[0298] In addition, the display device 100 may be wirelessly connected to the audio device 200, and the user device 300 may be wirelessly connected to the audio device 200. For example, the display device 100 may be connected to the audio device 200 using Wi-Fi wireless communication or Bluetooth wireless communication, and the user device 300 may be connected to the audio device 200 using Bluetooth wireless communication or Wi-Fi wireless communication. The user device 300 may be connected to the audio device 200 using short-range wireless communication.

[0299] The user device 300 may be connected to the audio device 200 through heterogeneous wireless communication. For example, the user device 300 may authenticate communication with the audio device 200 using short-range wireless communication and transmit an audio signal to the audio device 200 using Bluetooth wireless communication.

[0300] In this way, the audio device 200 may be connected to each of the display device 100 and the user device 300. The audio device 200 may receive an audio signal from the display device 100 and output a sound according to the received audio signal. In addition, the audio device 200 may receive an audio signal from the user device 300 and output a sound according to the received audio signal.

[0301] Fig.18 Operations of a display device, an audio device, and a user equipment according to an embodiment are illustrated.

[0302] refer to Fig.18 , operations of the display device 100, the audio device 200, and the user equipment 300 will be described (1600).

[0303] The display device 100 may be connected to the audio device 200 , and may be set to an “on state” or a “standby state.” In addition, the audio device 200 may be set to an “on state.” The user equipment 300 may be connected to the audio device 200 .

[0304] The audio device 200 transmits operation information to the display device 100, and the display device 100 receives the operation information of the audio device 200 (1610).

[0305] Operation 1610 may be performed with Figure 6 Operations 1010 and 1020 are shown to be the same.

[0306] The display device 100 displays operation information of the audio device 200 ( 1620 ).

[0307] Operation 1620 can be performed with Figure 6 Operation 1030 is shown to be the same.

[0308] The user device 300 reproduces the audio (1630).

[0309] When the display device 100 displays the operation information of the audio device 200, the user device 300 may reproduce the audio in response to the user input. For example, the user may input the user input for reproducing the audio through the user interface of the user device 300. The user device 300 may reproduce the audio in response to the user input.

[0310] The user equipment 300 transmits the audio signal based on the audio reproduction to the audio device 200, and the audio device 200 receives the audio signal from the user equipment 300 (1640).

[0311] The user equipment 300 may reconstruct an audio signal from an audio file or reconstruct an audio signal from a radio broadcast signal and transmit the audio signal to the audio device 200 through a communication interface.

[0312] The controller 280 of the audio device 200 may receive an audio signal from the user equipment 300 through the communication interface 260 .

[0313] The audio device 200 outputs sound according to the audio signal (1650).

[0314] The controller 280 of the audio device 200 may control the speaker 240 to convert an audio signal received from the user equipment 300 into sound and output the sound according to the audio signal.

[0315] The audio device 200 transmits the audio signal to the display device 100, and the display device 100 receives the audio signal from the audio device 200 (1660). In addition, the display device 100 outputs sound according to the audio signal (1670).

[0316] Operations 1660 and 1670 can be used with Fig.11 Operations 1350, 1370, and 1380 are shown to be the same.

[0317] The audio device 200 transmits the updated operation information to the display device 100, and the display device 100 receives the updated operation information of the audio device 200 (1680). In addition, the display device 100 displays the updated operation information of the audio device 200 (1690).

[0318] Operations 1680 and 1690 can be used with Figure 6 Operations 1050, 1060, and 1070 are the same.

[0319] As described above, the display apparatus 100 may output sound together with the audio device 200 according to the audio signal reproduced by the user device 300. In other words, the display apparatus 100 may assist the audio device 200 that outputs the audio of the user device 300. Since the display apparatus 100 outputs a sound that is the same as or corresponds to the sound output by the audio device 200, the display apparatus 100 and the audio device 200 may provide a richer sound to the user than the sound output by the audio device 200 alone.

[0320] Fig.19 Operations of a display device, an audio device, and a user equipment according to an embodiment are illustrated. Fig. 20 Shown according to Fig.19 The illustrated operation displays an image on the display device.

[0321] refer to Fig.19 and Fig. 20 , operations of the display device 100, the audio device 200, and the user equipment 300 will be described (1700).

[0322] The display device 100 may be connected to the audio device 200 , and may be set to an “on state” or a “standby state.” The audio device 200 may be set to an “on state.” In addition, the user equipment 300 may be connected to the audio device 200 .

[0323] The user equipment 300 transmits information about an application related to audio reproduction (hereinafter referred to as "user application information") to the audio device 200, and the audio device 200 receives the user application information from the user equipment 300 (1710).

[0324] The user device 300 may collect information related to audio reproduction (user application information) stored in a storage device or memory. The user device 300 may store an Internet radio application that reproduces Internet audio streams (Internet music broadcasts), an audio player that reproduces audio files stored in an internal storage device or an external storage device, and the like.

[0325] The user equipment 300 may send the user application information to the audio device 200 through the communication interface. For example, the user equipment 300 may send the user application information using Bluetooth wireless communication.

[0326] The controller 280 of the audio device 200 may receive the user application information of the user equipment 300 through the communication interface 260 .

[0327] The audio device 200 transmits operation information and audio application information of the audio device 200 and user application information to the display device 100, and the display device 100 receives operation information and audio application information of the audio device 200 and user application information from the audio device 200 (1720).

[0328] The controller 280 of the audio device 200 may collect operation information about the audio device 200, including identification information of the audio device 200, the volume of the speaker 240, a connection method with the display device 100, and a sound output mode of the speaker 240. In addition, the controller 280 may also collect information related to audio reproduction (audio application information) stored in the storage device 270 or the memory 282.

[0329] The audio device 200 may transmit operation information and audio application information of the audio device 200 and user application information received from the user equipment 300 to the display device 100 through the content interface 220 and / or the communication interface 260 .

[0330] The controller 180 of the display device 100 may acquire operation information and audio application information of the audio device 200 and user application information through the content interface 120 and / or the communication interface 160 .

[0331] The display device 100 displays operation information and audio application information of the audio device 200 and user application information ( 1730 ).

[0332] The controller 180 of the display device 100 may control the display 150 to display the operation information and the audio application information of the audio device 200 and the user application information on a portion of the display panel 152. Fig. 20 As shown, the controller 180 can control the display 150 to display image objects (or control menus) 501, 502, 503, 504, 505 and 506 representing operation information / audio application information of the audio device 200, an image object (or control menu) 531 representing an audio player that reproduces audio files of the user equipment 300, and a play list of the audio player at the lower portion of the display panel 152.

[0333] When the display apparatus 100 displays the operation information and the audio application information of the audio device 200 and the user application information, the display apparatus 100 acquires a user input for the user equipment 300 ( 1740 ).

[0334] The user may input a user input for the user device 300 through the user inputter 110 of the display apparatus 100. For example, the user may input a user input for executing an audio player of the user device 300 through the remote control 112a of the display apparatus 100.

[0335] The user can select the image object (or control menu) 531 representing the audio player indicating the volume of the audio device 200 and use the remote control 112a to execute the audio player of the user device 300. In other words, the image object (or control menu) 531 can be used as a control menu for obtaining user input.

[0336] The controller 180 of the display apparatus 100 may obtain a user input for the user device 300 through the user inputter 110 .

[0337] The display apparatus 100 transmits information about a user input (hereinafter referred to as 'user input information') to the audio apparatus 200 , and the audio apparatus 200 receives the user input information from the display apparatus 100 ( 1750 ).

[0338] Operation 1750 can be used with Figure 8 Operations 1150 and 1160 are shown to be the same.

[0339] The audio device 200 transmits the user input information to the user equipment 300, and the user equipment 300 receives the user input information from the audio device 200 (1760).

[0340] The audio device 200 may transmit user input information to the user equipment 300 through the communication interface 260 , and the user equipment 300 may receive user input information from the audio device 300 .

[0341] The user equipment 300 operates in response to a user input input to the display apparatus 100 ( 1770 ).

[0342] The user device 300 may receive user input information and obtain user input based on the user input information.

[0343] The user device 300 may execute a user application in response to a user input through the display apparatus 100. For example, the user device 300 may execute an audio player in response to a user input through the display apparatus 100. In addition, an audio signal reproduced by the audio player of the user device 300 may be transmitted to the audio device 200, and the audio device 200 may output sound according to the audio signal.

[0344] As such, in order for the display apparatus 100 to display user application information of the user equipment 300 and control the user equipment 300 using a user input through the display apparatus 100 , a specific authentication process between the display apparatus 100 and the user equipment 300 may be required.

[0345] For example, when the user device 300 is set at a position close to the display apparatus 100, the user device 300 can use short-range wireless communication to send information (hereinafter referred to as "authentication information"), such as an authentication code or password, to the display apparatus 100. The display apparatus 100 can use short-range wireless communication to receive the authentication information and send the authentication information to the audio device 200 together with the user input information.

[0346] As described above, the display apparatus 100 may display user application information of the user device 300 and obtain user input from the user. Therefore, the display apparatus 100 may allow the user to control the user device 300 through the user input device 110 of the display apparatus 100. In addition, when listening to the audio of the user device 300, the user may control the operation related to the audio of the user device 300 through the display apparatus 100 without directly manipulating the user device 300.

[0347] According to an embodiment, a display device may include a display; a content interface configured to receive a broadcast signal; a communication interface; and a controller electrically connected to the display, the content interface, and the communication interface, wherein the controller is configured to control the display to display an image corresponding to the broadcast signal received through the content interface, receive operation information of an external audio device through at least one interface selected from the content interface and the communication interface, and control the display to display a control menu for representing the operation information of the external audio device and controlling the external audio device based on the operation information of the external audio device.

[0348] Therefore, the display device can provide the user with detailed information about the audio device that does not include a display panel. Even when the audio device includes a display panel, the display device can display detailed information about the audio device on the display panel with high visibility, so that the user can easily obtain information about the audio device through the display device.

[0349] The controller may be configured to obtain a user input for controlling the external audio device through a control menu displayed on the display and a user input, and send the user input to the external audio device through at least one interface. In detail, the controller may be configured to receive information about an application related to audio reproduction of the external audio device through at least one interface, display another control menu for indicating information about the application of the external audio device and executing the application of the external audio device, obtain another user input for executing the application through another control menu displayed on the display and the user input, and send the another user input to the external audio device through at least one interface.

[0350] Therefore, the display device can allow the user to control the audio device through the user input of the display device. The display device can display various images through the display so that the user can check various settings and commands that can be input to the audio device through the display. In addition, the user can control the audio device using the remote control of the display device at a remote site.

[0351] The controller may turn off the display in response to the control menu being displayed on the display for a time longer than or equal to a reference time.

[0352] Therefore, the display device can reduce the amount of power consumed to display the operation information of the audio device.

[0353] The controller may be configured to receive an audio signal from an external audio device through the at least one interface, and control the speaker to output sound through the speaker according to the received audio signal.

[0354] Therefore, the display device can assist the audio device. Since the display device outputs the same or corresponding sound as the sound of the audio device, the display device and the audio device can provide the user with richer sound than the sound output by the audio device alone.

[0355] The controller may be configured to receive an audio signal from an external audio device through the at least one interface, and control the display to display an image visualizing the received audio signal.

[0356] Thus, the display device may provide the user with information regarding the position and / or direction of the sound output from the audio device.

[0357] The controller may be configured to receive operation information of another audio device through another interface selected from the content interface and the communication interface, and control the display to display another control menu for indicating the operation information of the other audio device and controlling the other audio device. In addition, the controller may be configured to receive an audio signal from an external audio device through at least one interface, and send the received audio signal to the other audio device through another interface.

[0358] Therefore, the display device can provide the user with detailed information of multiple audio devices without including a display panel. In addition, the display device and multiple audio devices can provide the user with richer sound than the sound output by only one audio device.

[0359] The controller may be configured to receive an audio signal of an external user device communicating with the external audio device from the external audio device through the at least one interface; and output a sound according to the received audio signal of the external user device through the speaker.

[0360] Therefore, the display device can assist the audio device that outputs the audio of the user device. Since the display device outputs the same or corresponding sound as the sound output by the audio device, the display device and the audio device can provide the user with richer sound than the sound output by the audio device alone.

[0361] The controller can be configured to: receive information about an application related to audio reproduction of an external user device that communicates with the external audio device from the external audio device through at least one interface, display another control menu for representing information about the application of the external user device and executing the application of the external user device, obtain another user input for executing the application of the external user device through the other control menu displayed on the display and the user input, and send the other user input to the external audio device through the at least one interface, so that the other user input is sent to the external user device.

[0362] Therefore, the display device can allow the user to control the user device through the user input of the display device. In addition, when listening to the audio of the user device, the user can control the audio-related operations of the user device through the display device without directly manipulating the user device.

[0363] Exemplary embodiments of the present disclosure have been described above. In the above exemplary embodiments, some components may be implemented as "modules". Here, the term "module" means but is not limited to software and / or hardware components that perform specific tasks, such as field programmable gate arrays (FPGAs) or application specific integrated circuits (ASICs). Modules may advantageously be configured to reside on an addressable storage medium and to be executed on one or more processors.

[0364] Thus, modules may include, for example, components, such as software components, object-oriented software components, class components and task components, processes, functions, attributes, procedures, subroutines, program code segments, drivers, firmware, microcodes, circuits, data, databases, data structures, tables, arrays and variables. The operations provided in the components and modules may be combined into fewer components and modules, or further divided into additional components and modules. In addition, the components and modules may be implemented so that they execute one or more CPUs in the device.

[0365] As described above, in addition to the above exemplary embodiments, the embodiments may be implemented by computer-readable code / instructions in / on a medium (e.g., a computer-readable medium) to control at least one processing element to implement any of the above exemplary embodiments. The medium may correspond to any medium that permits storage and / or transmission of computer-readable code.

[0366] The computer readable code may be recorded on a medium or transmitted over the Internet. The medium may include a read-only memory (ROM), a random access memory (RAM), a compact disk read-only memory (CD-ROM), a magnetic tape, a floppy disk, and an optical recording medium. In addition, the medium may be a non-transitory computer readable medium. The medium may also be a distributed network so that the computer readable code is stored or transmitted and executed in a distributed manner. In addition, by way of example only, the processing element may include at least one processor or at least one computer processor, and the processing element may be distributed and / or included in a single device.

[0367] While exemplary embodiments have been described with respect to a limited number of embodiments, those skilled in the art, having benefit of this disclosure, will appreciate that other embodiments can be devised which do not depart from the scope of this disclosure. Accordingly, the scope should be limited only by the claims appended hereto.

Claims

1. A display device, comprising: monitor; Content interface; Communication interface; as well as The controller is configured as: controlling the display to display an image corresponding to the broadcast signal received through the content interface; receiving operation information of an external audio device through at least one interface selected from the content interface and the communication interface; controlling the display to display a first control menu for providing operation information of the external audio device to control the external audio device based on the operation information of the external audio device and the operation information of the display device; controlling the display to display a second control menu, the second control menu being used to represent information about an application for audio reproduction of the external audio device, the second control menu being selectable to control the application of the external audio device; controlling the display to display a third control menu, the third control menu being used to represent information about an application of an external user device that communicates with the external audio apparatus and is used for audio reproduction of the external user device, the third control menu being selectable to control the application of the external user device; as well as controlling audio reproduction of an external audio device and / or an external user equipment based on input received through a first control menu, a second control menu, and a third control menu simultaneously displayed on a display of the display device, Wherein, the controller is further configured as: receiving information about an application of an external audio device through the at least one interface, and Information about an application of an external user equipment communicating with the external audio device is received from the external audio device through the at least one interface.

2. The display device according to claim 1, further comprising a user input device, in, The controller is configured to: acquiring a user input for controlling the external audio device through the control menu displayed on the display, the user input being received from the user input device; as well as The user input is sent to the external audio device through the at least one interface.

3. The display device according to claim 2, wherein: The controller is configured to: acquiring another user input for executing the application through the second control menu displayed on the display, the another user input being received from the user input device; as well as The further user input is sent to the external audio device through the at least one interface.

4. The display device according to claim 1, wherein: The controller is configured to turn off the display in response to a time for which the first control menu, the second control menu, and the third control menu are displayed on the display being longer than or equal to a reference time.

5. The display device according to claim 1, further comprising a speaker, in, The controller is configured to: receiving an audio signal from the external audio device through the at least one interface; and The speaker outputs sound according to the received audio signal.

6. The display device according to claim 1, wherein: The controller is configured to: receiving an audio signal from the external audio device through the at least one interface; and The display is controlled to display an image that visualizes the position and sound intensity of the sound output by the audio device.

7. The display device according to claim 1, further comprising a speaker, in, The controller is configured to: receiving, from the external audio device through the at least one interface, an audio signal of an external user device in communication with the external audio device; as well as The sound is outputted through the speaker according to the audio signal received from the external user equipment.

8. The display device according to claim 1, further comprising: in, The controller is configured to: acquiring, through a third control menu displayed on the display, a user input for executing an application of the external user device; as well as The user input is sent to the external audio device through the at least one interface, so that another user input is sent to the external user device.

9. A method for controlling a display device including a communication interface and a content interface, the method comprising: displaying, on a display, an image corresponding to a broadcast signal received through the content interface; receiving operation information of an external audio device through at least one interface selected from the content interface and the communication interface; displaying, on the display, a first control menu for providing operation information of the external audio device and controlling the external audio device based on the operation information of the external audio device and the operation information of the display device; displaying a second control menu for indicating information about an application for audio reproduction of the external audio device of the external audio device, the second control menu being selectable to control the application of the external audio device; displaying a third control menu for indicating information about an application of an external user device for audio reproduction of the external user device that communicates with the external audio apparatus, the third control menu being selectable to control the application of the external user device; as well as controlling audio reproduction of an external audio device and / or an external user equipment based on input received through a first control menu, a second control menu, and a third control menu simultaneously displayed on a display of the display device; Wherein, the method further comprises: receiving information about an application of an external audio device through the at least one interface, and Information about an application of an external user equipment communicating with the external audio device is received from the external audio device through the at least one interface.

10. The method according to claim 9, further comprising: acquiring a user input for controlling the external audio device through the control menu displayed on the display, the user input being received from the user input device; as well as The user input is sent to the external audio device through the at least one interface.

11. The method according to claim 10, further comprising: acquiring another user input for executing a second control menu and the application displayed on the display; as well as The further user input is sent to the external audio device through the at least one interface. 12 . The method of claim 9 , further comprising turning off the display in response to a time for which the first control menu, the second control menu, and the third control menu are displayed on the display being longer than or equal to a reference time.

13. The method according to claim 9, further comprising: receiving an audio signal from the external audio device via the at least one interface; as well as The speaker of the display device outputs sound according to the received audio signal.

14. The method according to claim 9, further comprising: receiving an audio signal from the external audio device via the at least one interface; as well as The display is controlled to display an image that visualizes the received audio signal.

15. The method according to claim 9, further comprising: acquiring a user input for executing an application of the external user device through a third control menu displayed on the display, the user input being received from the user input device; as well as The user input is sent to the external audio device through the at least one interface, so that the user input is sent to the external user equipment.

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