Electronic device and operating method for electronic device

Abstract

Disclosed is an operating method for an electronic device connected to a plurality of display devices. An operating method for an electronic device, according to an embodiment of the present disclosure, may include the operations of: identifying that an extended display function of at least two devices among a plurality of display devices and the electronic device is activated; increasing the sound intensities of speakers of a first device having the greatest variability value among the at least two devices; and increasing the sound intensity of a speaker adjacent to the first device, wherein the variability value indicates the degree of change in the screens of the at least two devices, and may be identified on the basis of image signals input to the electronic device.

Description

Electronic devices and methods of operating electronic devices

[0001] Embodiments disclosed in this document relate to electronic devices and methods of operating electronic devices.

[0002] 3D surround sound is an audio output method that combines and outputs various simultaneously extracted sound sources by taking advantage of the differences in arrival times and sound intensity between microphone sound sources during sound recording, or by specifying the physical location of a speaker and specifying the sound source for that location. 3D surround sound can be implemented in two ways: channel-based and object-based. Channel-based implementation methods implement surround sound using speaker systems, and can be configured as mono (1 channel), stereo (2 channels), 5.1 channels, 7.1 channels, or 9.1 channels. In the case of channel-based methods, in order to implement surround sound, the consumer must have an audio device that conforms to the channel-based standard and place it in a designated location, and sound sources that support the standard can be used. Object-based implementation methods treat audio signals as individual objects, assigning location information and acoustic characteristics to each audio object, and considering the device that plays the object separately from the speaker system. In the case of object-based methods, you can enjoy surround sound with just two-channel stereo equipment, but the supplier can use dedicated equipment such as a dummy head microphone to create the sound source.

[0003] Extended display mode includes a mode in which a single source is displayed using multiple display devices (e.g., monitors, TVs, projectors, etc.). Each display device may include two or more speakers, and when using multiple display devices, surround sound can be provided through the multiple speakers.

[0004] Based on the discussion described above, the present disclosure provides a device and method for providing stereoscopic sound using a plurality of display devices in an extended display mode.

[0005] According to one embodiment of the present disclosure, a method for operating an electronic device connected to a plurality of display devices may include an operation for identifying that an extended display function of at least two of the plurality of display devices and the electronic device is activated. In one embodiment, the method for operating the electronic device may include an operation for increasing the sound intensity of speakers of a first device having a highest variability value among the at least two devices. In one embodiment, the method for operating the electronic device may include an operation for increasing the sound intensity of a speaker disposed adjacent to the first device. In one embodiment, the variability value may indicate a degree of screen change of the at least two devices. In one embodiment, the variability value may be identified based on a video signal input to the electronic device.

[0006] In one embodiment, the speaker disposed adjacent to the first device may be disposed on a first side of a second device among the at least two devices, and the first side of the second device may be a side facing the first device.

[0007] In one embodiment, sound channels of speakers positioned in a first direction from a central point among the speakers of the at least two devices include a first channel, and sound channels of speakers positioned in a second direction opposite to the first direction from the central point among the speakers of the at least two devices include a second channel, wherein the central point may include a central point of the at least two devices.

[0008] In one embodiment, the sound intensity of the first device is increased by a first value, the sound intensity of the second device is increased by a second value, and the first value may have a value greater than the second value.

[0009] In one embodiment, the operation of identifying that an extended display function of at least two of the plurality of display devices and the electronic device is activated may include an operation of identifying that the extended display function of the at least two devices is activated in response to identifying that the at least two devices are physically connected via at least one hinge.

[0010] In one embodiment, the method of operating an electronic device may include an operation of identifying frames of screens displayed on at least two devices. In one embodiment, the method of operating an electronic device may include an operation of measuring a difference in pixel values ​​of the frames. In one embodiment, the method of operating an electronic device may include an operation of identifying the volatility values ​​of the at least two devices.

[0011] In one embodiment, a method of operating an electronic device may include an operation of identifying the volatility values ​​of the at least two devices based on an area in which an object displayed on a screen of the at least two devices is located.

[0012] In one embodiment, the act of increasing the sound intensity of the speakers of the first device having the largest variability value among the at least two devices may include the act of increasing the sound intensity of the speakers corresponding to the area where the object is located.

[0013] An electronic device connected to a plurality of display devices according to one embodiment of the present disclosure may include at least two speakers and a processor connected to the at least two speakers. In one embodiment, the processor may identify that an extended display function of at least two of the plurality of display devices and the electronic device is activated. In one embodiment, the processor may increase the sound intensity of the speakers of a first device having a highest variability value among the at least two devices. In one embodiment, the processor may increase the sound intensity of a speaker disposed adjacent to the first device. In one embodiment, the variability value may indicate a degree of screen change of the at least two devices. In one embodiment, the variability value may be identified based on a video signal input to the electronic device.

[0014] In one embodiment, the speaker disposed adjacent to the first device may be disposed on a first side of a second device of the at least two devices, wherein the first side of the second device may include a side facing the first device.

[0015] In one embodiment, the sound channels of the speakers positioned in a first direction from the center point among the speakers of the at least two devices may include a first channel. In one embodiment, the sound channels of the speakers positioned in a second direction opposite to the first direction from the center point among the speakers of the at least two devices may include a second channel. In one embodiment, the center point may include the center points of the at least two devices.

[0016] In one embodiment, the sound intensity of the first device is increased by a first value, the sound intensity of the second device is increased by a second value, and the first value may have a value greater than the second value.

[0017] In one embodiment, the electronic device further comprises a connection unit connected to the processor, wherein the processor is configured to, in response to identifying that the at least two devices are physically connected through the at least one connection unit, identify that an extended display function of the at least two devices is activated.

[0018] In one embodiment, the processor may identify frames of a screen displayed on at least two devices. In one embodiment, the processor may be configured to measure differences in pixel values ​​of the frames.

[0019] In one embodiment, the processor may be configured to identify an area in which an object displayed on the screen of the at least two devices is located.

[0020] In one embodiment, the processor may be configured to increase the sound intensity of a speaker corresponding to the area where the object is located.

[0021] In one embodiment of the present disclosure, a non-transitory recording medium storing computer-readable instructions may include an operation for identifying, when executed by at least one processor of an electronic device, that an extended display function of at least two of a plurality of display devices and the electronic device is activated. The instructions may include an operation for increasing the sound intensity of speakers of a first device having a highest variability value among the at least two devices. The instructions may, when executed by at least one processor of the electronic device, perform an operation for increasing the sound intensity of a speaker disposed adjacent to the first device. In one embodiment, the variability value may indicate a degree of screen change of the at least two devices. In one embodiment, the variability value may be identified based on a video signal input to the electronic device.

[0022] In one embodiment, the speaker disposed adjacent to the first device may be disposed on a first side of a second device among the at least two devices. In one embodiment, the first side of the second device may include a side facing the first device.

[0023] In one embodiment, the sound channels of the speakers positioned in a first direction from the center point among the speakers of the at least two devices may include a first channel. In one embodiment, the sound channels of the speakers positioned in a second direction opposite to the first direction from the center point among the speakers of the at least two devices may include a second channel. In one embodiment, the center point may include the center points of the at least two devices.

[0024] In one embodiment, the sound intensity of the first device is increased by a first value, the sound intensity of the second device is increased by a second value, and the first value may have a value greater than the second value.

[0025] Embodiments of the present disclosure provide the effect of providing a three-dimensional sound using speakers arranged on a plurality of display devices.

[0026] Additionally, embodiments of the present disclosure provide an effect of adaptively adjusting sound intensity depending on whether the extended display mode function of multiple display devices is activated.

[0027] In addition, embodiments of the present disclosure provide an effect of providing a three-dimensional sound by adjusting sound output based on the variability of a screen displayed on display devices or the position of an object.

[0028] The effects that can be obtained from the present disclosure are not limited to the effects mentioned in the various embodiments, and other effects that are not mentioned can be clearly understood by a person having ordinary skill in the art to which the present disclosure belongs from the description below.

[0029] FIG. 1 illustrates a block diagram of an electronic device according to one embodiment.

[0030] FIG. 2 illustrates an example of a connection structure of display devices according to one embodiment.

[0031] FIG. 3a illustrates an example of a connection structure of display devices according to one embodiment.

[0032] FIG. 3b illustrates an example of a connection structure of display devices according to one embodiment.

[0033] FIG. 4A illustrates an example of a connection structure between an external electronic device and a display device according to one embodiment.

[0034] FIG. 4b illustrates an example of a connection structure of external electronic device display devices according to one embodiment.

[0035] FIG. 5a illustrates an example of a connection structure of display devices according to one embodiment.

[0036] FIG. 5b illustrates an example of a connection structure of display devices according to one embodiment.

[0037] FIG. 5c illustrates an example of a connection structure between a display device and a server according to one embodiment.

[0038] FIG. 5d illustrates an example of a connection structure between a display device and an external electronic device according to one embodiment.

[0039] Figure 6 illustrates an operational flow of an electronic device according to one embodiment.

[0040] Figure 7 illustrates an example of sound control of a display device according to one embodiment.

[0041] Figure 8 illustrates an operational flow of an electronic device according to one embodiment.

[0042] FIG. 9A illustrates an example of sound output control according to an area where an object of an electronic device is located according to one embodiment.

[0043] FIG. 9b illustrates an example of sound output control according to an area where an object of an electronic device is located according to one embodiment.

[0044] FIG. 9c illustrates an example of sound output control according to an area where an object of an electronic device is located according to one embodiment.

[0045] FIG. 9d illustrates an example of sound output control according to an area where an object of an electronic device is located according to one embodiment.

[0046] FIG. 9e illustrates an example of sound output control according to an area where an object of an electronic device is located according to one embodiment.

[0047] FIG. 9f illustrates an example of sound output control according to an area where an object of an electronic device is located according to one embodiment.

[0048] In connection with the description of the drawings, the same or similar reference numerals may be used for identical or similar components.

[0049] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings so that those skilled in the art can easily implement the present disclosure. However, the present disclosure may be implemented in various different forms and is not limited to the embodiments described herein. In connection with the description of the drawings, the same or similar reference numerals may be used for identical or similar components. Furthermore, in the drawings and related descriptions, descriptions of well-known functions and configurations may be omitted for clarity and conciseness.

[0050] Figure 1 illustrates a block diagram of an electronic device according to one embodiment. Furthermore, the electronic device (100) may be a wearable terminal, such as a watch or glasses, capable of performing various computing functions, such as video viewing and communication. The electronic device (100) may be a terminal of various forms without limitation to the above-described embodiments.

[0051] According to one embodiment, the memory (120) is a storage medium used by the electronic device (100) and can store data such as at least one command (121) or setting information corresponding to at least one program. The program can include an operating system (OS) program and various application programs.

[0052] In one embodiment, the memory (120) may store pairing information of an external electronic device positioned adjacent to the electronic device (100). In one embodiment, the pairing information may include device information of the external electronic device, information about other external electronic devices or remote control devices paired with the external electronic device, information about a method by which the external electronic device and the other external electronic devices or remote control devices are paired (e.g., Bluetooth, Wi-Fi), information about a pairing history between the external electronic device and the other external electronic devices or remote control devices, etc.

[0053] In one embodiment, the memory (120) may include at least one type of storage medium among a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (e.g., an SD or XD memory, etc.), a random access memory (RAM), a static random access memory (SRAM), a read only memory (ROM), an electrically erasable programmable ROM (EEPROM), a programmable ROM (PROM), a magnetic memory, a magnetic disk, and an optical disk.

[0054] According to one embodiment, the video input unit (130) can receive video and video information through a tuner (not shown), an input / output unit (not shown), or a communication unit (150). The video input unit (130) can include at least one of the tuner and the input / output unit. The tuner can select and tune only the frequency of a broadcast channel to be received by the electronic device (100) among many radio wave components through amplification, mixing, resonance, etc. of a broadcast signal received wirelessly or wiredly. The broadcast signal can include video, audio, and additional data (e.g., an Electronic Program Guide (EPG)). The tuner can receive real-time broadcast channels (or real-time viewing images) from various broadcast sources such as terrestrial broadcasting, cable broadcasting, satellite broadcasting, and Internet broadcasting. The tuner can be implemented as an integrated unit with the electronic device (100) or as a separate tuner electrically connected to the electronic device (100). The input / output unit may include at least one of an HDMI (High Definition Multimedia Interface) input port, a component input jack, a PC input port, and a USB input jack, which can receive images and image information from an external device of the electronic device (100) under the control of the processor (110). It is obvious to those skilled in the art that the input / output unit may be added, deleted, and / or changed depending on the performance and structure of the electronic device (100).

[0055] According to one embodiment, the display (140) may perform functions for outputting information in the form of numbers, characters, images, and / or graphics. The display (140) may include at least one hardware module for outputting. The at least one hardware module may include, for example, at least one of a Liquid Crystal Display (LCD), a Light Emitting Diode (LED), a Light Emitting Polymer Display (LPD), an Organic Light Emitting Diode (OLED), an Active Matrix Organic Light Emitting Diode (AMOLED), or a Flexible LED (FLED). The display (140) may display a screen corresponding to data received from the processor (110). The display (140) may be referred to as an “output unit,” a “display unit,” or other terms having equivalent technical meanings thereto. The “screen” may include an image displayed on the display of an electronic device. The image may be referred to by terms such as a frame. Various types of objects such as icons, text, photos, videos, widgets, etc. may be displayed on the screen.

[0056] According to one embodiment, the communication unit (150) may provide a wired / wireless communication interface that enables communication with an external device. The communication unit (150) may include at least one of a wired Ethernet, a wireless LAN communication unit, and a short-range communication unit. The wireless LAN communication unit may include, for example, Wi-Fi, and may support the wireless LAN standard (IEEE802.11x) of the Institute of Electrical and Electronics Engineers (IEEE). The wireless LAN communication unit may be wirelessly connected to an AP (Access Point) under the control of the processor (110). The AP may include a device that enables devices to be connected using a related standard using Wi-Fi in a computer network. The short-range communication unit may wirelessly perform short-range communication with an external device under the control of the processor (110). Short-range communication may include Bluetooth, Bluetooth Low Energy, Infrared Data Association (IrDA), Ultra Wide Band (UWB), and Near Field Communication (NFC). The above external devices may include server devices that provide video services, etc., and mobile terminals (e.g., phones, tablets, etc.).

[0057] According to one embodiment, the processor (110) may execute at least one instruction (121) stored in the memory (120) to perform calculations or data processing related to control and / or communication of at least one other component of the electronic device (100). The processor (110) may include at least one of a central processing unit (CPU), a graphics processing unit (GPU), a micro controller unit (MCU), a sensor hub, a supplementary processor, a communication processor, an application processor, an application specific integrated circuit (ASIC), or a field programmable gate array (FPGA), and may have multiple cores.

[0058] In one embodiment, the processor (110) may control at least one other component (e.g., a hardware or software component) of the electronic device (100) connected to the processor (110), for example, by executing software, and may perform various data processing or calculations. According to one embodiment, as at least a part of the data processing or calculation, the processor (110) may store commands or data received from other components in a volatile memory, process the commands or data stored in the volatile memory, and store result data in a non-volatile memory. According to one embodiment, the processor (110) may include a main processor (e.g., a central processing unit or an application processor) or an auxiliary processor (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor) that can operate independently or together therewith. For example, when the electronic device (100) includes a main processor and an auxiliary processor, the auxiliary processor may be configured to use lower power than the main processor or to be specialized for a given function. The auxiliary processor may be implemented separately from the main processor or as part of it.

[0059] In one embodiment, the processor (110) may obtain image frame data from at least one of the memory (120), the image input unit (130), or the communication unit (150). The processor (110) may receive the image frame data from at least one of the memory (120), the image input unit (130), or the communication unit (150). The image frame data may include data regarding frames constituting an image. For example, the image frame data may be identified from the memory (120) (e.g., a recorded and stored image). For example, the image frame data may include data obtained from the communication unit (150) or the image input unit (130) (e.g., a real-time streaming image).

[0060] FIG. 2 illustrates an example of a connection structure of display devices according to one embodiment.

[0061] Referring to FIG. 2, the connection structure may include a plurality of display devices (210, 220, 230), an external electronic device (240), and a source device (250). Although the drawing illustrates an example in which three display devices are connected, this is merely an example, and embodiments of the present disclosure may also be applied to cases in which fewer or more display devices than three are connected. In addition, in the following description, the external electronic device (240) is illustrated as a separate device from the plurality of display devices (210, 220, 230), however, this is merely an example, and all or part of the configuration of the external electronic device (240) may be included in the plurality of display devices (210, 220, 230). In other words, all or part of the functions of the external electronic device (240) described below may be performed by at least one display device among the plurality of display devices (210, 220, 230).

[0062] In one embodiment, the display area of ​​the display device (210), 220, 230) may be divided into a first area (211, 221, 231) and a second area (212, 222, 232). The first area may include a left area based on the center of the display area, and the second area may include a right area based on the center of the display area. In the following description, the area is divided into two areas, the first area and the second area, as an example, but may be classified into two or more areas.

[0063] In one embodiment, the display device (210, 220, 230) may include a first speaker (213, 223, 233) and a second speaker (213, 224, 234). The first speaker may include a speaker positioned in a portion corresponding to a first area of ​​each display device. The second speaker may include a speaker positioned in a portion corresponding to a second area of ​​each display device.

[0064] In one embodiment, an external electronic device (240) may control images and sounds of a plurality of display devices (210, 220, 230). The external electronic device (240) may include amplifiers (e.g., a first AMP (241), a second AMP (242), and a third AMP (243)) for controlling sounds of the plurality of display devices (210, 220, 230). The external electronic device (240) may include an SoC (244) for controlling the amplifiers. The external electronic device (240) may be referred to as an “image transmitting / receiving device.”

[0065] In one embodiment, the SoC (244) can analyze a video signal and an audio signal input from a source device (250). The SoC (244) can analyze the video signal input from the source device (250) to identify a volatility value of a screen to be displayed on a plurality of display devices (210, 220, 230). The volatility value may include a value indicating the degree to which the screen changes. In other words, the volatility value may include a value indicating how quickly pixels or elements on the screen of the display device change over time. The volatility value may indicate the degree to which the screen moves or changes. For example, the SoC (244) can identify the volatility value of a screen to be displayed on each display device using a motion lighting technology that determines the volatility of an image. For example, the SoC (244) can identify the number of fluctuations in pixels in a frame of an image signal to identify the volatility value. For example, the SoC (244) can identify a variability value based on the position, movement, etc. of an object included in the screen displayed on each display device using object recognition technology. For example, the electronic device can determine a variability value based on a refresh rate and a frame rate. The variability value may be referred to as a “screen variability indicator” or a “screen dynamics indicator.”

[0066] In one embodiment, the external electronic device (240) can control the sound output of the plurality of display devices (210, 220, 230) through the amplifiers (241, 242, 243). For example, the external electronic device (240) can transmit a signal for controlling the sound output of the display device (210) through the first amplifier (241) connected to the first speaker (213) and the second speaker (214). For example, the external electronic device (240) can transmit a signal for controlling the sound output of the display device (220) through the second amplifier (242) connected to the first speaker (223) and the second speaker (224). For example, the external electronic device (240) can transmit a signal for controlling the sound output of the display device (230) through the third amplifier (243) connected to the first speaker (233) and the second speaker (234).

[0067] Although the drawing illustrates an example in which the SoC (244) is included in the external electronic device (240), in one embodiment, the SoC (244) may be included in at least one of the plurality of display devices. In other words, the SoC (244) may be included in at least one of the plurality of display devices (210, 220, 230) rather than the external electronic device (240). When the SoC (244) is included in at least one of the plurality of display devices, the at least one display device including the external electronic device (240) and the SoC (244) may perform operations for controlling image and audio signals of the plurality of display devices (210, 220, 230).

[0068] In one embodiment, the external electronic device (240) can transmit video and audio signals to a plurality of display devices (210, 220, 230) wirelessly or by wire. For example, when the external electronic device (240) and the plurality of display devices (210, 220, 230) are connected by wire (e.g., HDMI), the external electronic device (240) can transmit video and audio signals to the plurality of display devices (210, 220, 230) by wire. For example, the external electronic device (240) may include a communication unit (not shown) for wireless transmission of video and audio signals. The external electronic device (240) can transmit video and audio signals to the plurality of display devices (210, 220, 230) by using the communication unit (not shown).

[0069] In one embodiment, an external electronic device (240) can receive an input signal from a source device (250). The source device (250) is a subject that transmits an input source and can include a device such as a set-top box (STB), a PC, or a server.

[0070] In one embodiment, although not shown in the drawings, the source device (250) may transmit the input signal to an external electronic device (240), or, if the source device (250) is absent, may transmit the input signal directly to any one of the plurality of display devices (210, 220, 230). This will be described in detail in the drawings described below.

[0071] In one embodiment, one of the display devices (210, 220, 230) may serve as a master device. The remaining display devices (210, 220, 230) excluding the master device may serve as slave devices. The master device may include a display device that receives an input signal for screen display from an external electronic device (240) or a source device (250) and transmits the input signal to other connected display devices. In other words, the master device may include a display device that receives the input signal first.

[0072] In one embodiment, the master device may be determined to be one of a plurality of display devices and an external electronic device (240) based on the user's settings or the type of display device.

[0073] FIG. 3A illustrates an example of a connection structure of display devices according to one embodiment. FIG. 3B illustrates an example of a connection structure of display devices according to one embodiment.

[0074] In one embodiment, any one of the plurality of display devices (210, 220, 230) may serve as a master device. The master device may receive an input source from a source device or an external electronic device and transmit the same to other display devices.

[0075] Referring to FIG. 3A, the display device (210) can serve as a master device. Although not shown in the drawing, the display device (210) can receive an input signal from a source device (e.g., source device (250)), generate a screen and sound control signal to be displayed on the display device (220, 230) based on the input signal, and then transmit the same to the display device (220). The display device (220) can output a screen and sound based on the control signal received from the display device (210), and transmit a screen and sound control signal to be displayed on the display device (230) to the display device (230). The display device (230) can output a screen and sound based on the control signal received from the display device (220).

[0076] Referring to FIG. 3b, the display device (220) can serve as a master device. Although not shown in the drawing, the display device (220) can receive an input signal from a source device (e.g., source device (250)), generate a screen and sound control signal to be displayed on the display devices (210, 230) based on the input signal, and then transmit the same to the display devices (210) and (230), respectively. The display device (210) can output a screen and sound based on the control signal received from the display device (220). The display device (230) can output a screen and sound based on the control signal received from the display device (220).

[0077] In one embodiment, a master device (e.g., display device 210 in FIG. 3A, display device 220 in FIG. 3B) may receive an input signal (e.g., a video signal, an audio signal) from a source device (e.g., source device 250) and identify display modes of a plurality of display devices based on the input signal. The master device may identify information about screens to be displayed on the plurality of display devices including the master device based on the input signal, and may identify display modes of the plurality of display devices including the master device based on the information. The display modes may include an extended display mode and a single display mode. The extended display mode displays the plurality of display devices based on an input from a single source, and may include a mode in which the screen is displayed in an expanded manner. The extended display mode may be referred to as a “multi-monitor mode.” A device in the extended display mode may include a device with an extended display function enabled. The single display mode may include a mode in which each of the plurality of display devices displays a screen based on a different input source. A device in the single display mode may include a device with a single display function enabled.

[0078] In one embodiment, the master device can compare the number of linked display devices with the number of input sources. For example, if the number of linked display devices and the number of input sources are equal, the master device can determine that both display devices are operating in single display mode. For example, if the number of linked display devices exceeds the number of input sources, the master device can determine that at least two display devices are operating in extended display mode.

[0079] In one embodiment, the master device can identify that all three devices are operating in extended display mode. For example, the master device can identify that display device (210), display device (220), and display device (230) are all operating in extended display mode. In this case, display device (210), display device (220), and display device (230) can output screens and audio based on a single input source.

[0080] In one embodiment, the master device can identify that two display devices are operating in an extended display mode and the remaining display device is operating in a single display mode. For example, the master device can identify that display devices (210) and (220) are operating in an extended display mode and that display device (230) is operating in a single display mode. In this case, display devices (210) and (220) can output screens and sounds based on a single input source, and display device (230) can identify that screens and sounds are output through a different type of input source than display devices (210) and (220).

[0081] In one embodiment, the master device can identify that the display device (210), the display device (220), and the display device (230) are all operating in a single display mode. For example, if the input sources input to the display device (210), the display device (220), and the display device (230) are all different, the master device can determine that the display device (210), the display device (220), and the display device (230) are all operating in a single display mode.

[0082] In one embodiment, a master device (e.g., display device (210) in FIG. 3A, display device (220) in FIG. 3B) may receive an input signal (e.g., a video signal, an audio signal) from a source device (e.g., source device (250)) and analyze the input signal to identify a volatility value of a screen displayed on a plurality of display devices (display device (210), display device (220), display device (230)).

[0083] In one embodiment, the master device can compare the variability values ​​of the screens of each of the identified display devices and increase the sound intensity of the speakers of the display device having the greatest variability value and the display devices adjacent thereto.

[0084] In one embodiment, when all three display devices (210, 220, 230) are identified as operating in extended display mode, the master device may analyze the input signal to identify the variability value of the screen to be displayed on each of the display devices, and increase the sound intensity of the display device displaying the portion with high variability and the speaker adjacent to the display device displaying the portion with high variability. For example, when the display device (220) is identified as having the highest variability value, the sound intensity of the first speaker (223), the second speaker (224), and the second speaker (214), which is a speaker positioned adjacent to the display device (220), and the first speaker (233) may be increased. For example, when the display device (210) is identified as having the highest variability value, the master device may increase the sound intensity of the first speaker (213), the second speaker (214), and the first speaker (223), which is a speaker positioned adjacent to the display device (210). For example, if the display device (230) is identified as having the largest variability value, the master device may increase the sound intensity of the first speaker (233), the second speaker (234), and the second speaker (224), which is a speaker positioned adjacent to the display device (230). In one embodiment, the speakers positioned to the left of the center point (the first speaker (213), the second speaker (214), and the first speaker (223)) may output the sound of the left channel of the input signal, and the speakers positioned to the right of the center point (the second speaker (224), the first speaker (233), and the second speaker (234)) may output the sound of the right channel of the input signal. In one embodiment, the sound intensity of the speaker positioned on the display device having the largest variability value may be increased by a first value, and the sound intensity of the speaker positioned adjacent to the display device having the largest variability value may be increased by a second value that is smaller than the first value.

[0085] In one embodiment, when identifying that two display devices are operating in extended display mode and one display device is operating in single display mode, the master device may analyze the input signal of the display device operating in extended display mode to identify a variability value of the screen, and increase the sound intensity of the display device displaying the portion with high variability and the speakers adjacent to the display device displaying the portion with high variability. For example, when identifying that display device (210) is operating in single display mode and display device (220) and display device (230) are operating in extended display mode, the master device may increase the sound intensity of the display device with the larger variability value among display device (220) and display device (230). For example, when identifying that display device (210) is operating in single display mode and display device (220) and display device (230) are operating in extended display mode, the master device may increase the sound intensity of the display device with the larger variability value among display device (220) and display device (230). For example, if the display device (212) is operating in a single display mode and the display device (210) and the display device (230) are operating in an extended display mode, the master device may increase the sound intensity of the display device having a larger variability value among the display device (210) and the display device (230). For example, if the display device (230) is operating in a single display mode and the display device (210) and the display device (220) are operating in an extended display mode, the master device may increase the sound intensity of the display device having a larger variability value among the display device (210) and the display device (220).In one embodiment, when the volatility value of a display device operating in a single display mode is the greatest, only the sound output intensity of the display device operating in a single display mode may be increased, and the sound intensity of the remaining display devices may not be increased.

[0086] In one embodiment, the master device may use object (e.g., person, animal, object, etc.) recognition technology utilizing machine learning or the like to identify the volatility values ​​of the display devices, recognize the movement of the objects, and increase the sound of the display device on which the objects are displayed. In other words, the screen display area of ​​the display device operating in the extended display mode may be divided into a left area (e.g., 1-1 area, 2-1 area) and a right area (e.g., 1-2 area, 2-2 area), and the object recognition technology may be used to identify the area where the object is located, and increase the sound intensity of the speaker corresponding to the area where the object is located.

[0087] In one embodiment, the master device can isolate the sound source of the identified object and enhance only the sound of that object.

[0088] In one embodiment, the master device may only increase the sound intensity of a speaker positioned in the area where the object is located on the display device where the object is displayed.

[0089] In one embodiment, if all three display devices are identified as operating in a single display mode, the master device can control the sound intensity based on the screen display status of the display device displaying the main screen among the plurality of display devices.

[0090] In one embodiment, when all of the plurality of display devices operate in single display mode, the master device may determine a screen displayed on any one of the plurality of display devices as the main screen. For example, when all three display devices operate in single display mode, the screen displayed on the display device located in the middle of the three may be determined as the main screen. For example, when all of the three display devices operate in single display mode, the screen displayed on the display device located on the left of the three may be determined as the main screen. For example, when all of the three display devices operate in single display mode, the screen displayed on the display device located on the right of the three may be determined as the main screen. For example, the screen with the highest variability value among the screens displayed on the plurality of display devices may be determined as the main screen.

[0091] In one embodiment, the master device can increase the sound intensity of the main display device or the remaining display devices based on the screen variability value of the display device displaying the main screen. For example, if the display device displaying the main screen is determined to be the display device (220), and if the screen variability value of the display device (220) is equal to or greater than a predetermined value, the sound intensity of the display device (220) can be increased, and the sound intensity of the display devices (210, 230) can be decreased or turned off. If the screen variability value of the display device (220) is equal to or less than a predetermined value, the sound intensity of the display device (220) can be decreased, and the sound intensity of the display devices (210, 230) can be decreased or turned off. In other words, in a situation where the main screen (e.g., a game execution screen) is displayed on the display device arranged in the center, and other content such as additional information and advertisements are displayed on the remaining display devices (210, 230), the sounds of the main screen and the additional screens can be controlled depending on the progress status of the main screen. During the game (when the volatility value is greater than a predetermined value), the sound of the main screen is focused, and during the game pause (when the volatility value is less than a predetermined value), the sound of the additional screen (210, 220) is focused to provide a three-dimensional sound.

[0092] In one embodiment, if the master device itself is identified as having the greatest variability value, the master device may increase the sound intensity of the master device and the sound intensity of speakers positioned adjacent to the master device.

[0093] In one embodiment, if a display device other than the master device is identified as having the greatest variability value, the master device may include in a control signal transmitted to the other display device information instructing the other display device to increase the sound intensity.

[0094] In one embodiment, the master device may control the sound output of the display devices in response to identifying that all three display devices are operating in a single display mode and at least two of the display devices are switching to an extended display mode. For example, if all three display devices are operating in a single display mode and the sound of the three display devices is controlled based on their respective source inputs, and if identifying that the display devices (210, 220) are switching to an extended display mode, the display devices (210, 220) may control the display devices (210, 220) to operate according to the sound intensity control according to the extended display mode described above. This can be described in detail with a table in the drawings described below.

[0095] FIG. 4A illustrates an example of a connection structure between an external electronic device and display devices according to one embodiment. FIG. 4B illustrates an example of a connection structure between an external electronic device and display devices according to one embodiment.

[0096] In one embodiment, any one of the plurality of display devices (210, 220, 230) may serve as a master device. The master device may receive an input source from a source device or an external electronic device (240) and transmit the same to other display devices.

[0097] Referring to FIG. 4A, the display device (220) can serve as a master device. The display device (220) can receive an input signal from an external electronic device (240), generate a screen and sound control signal to be displayed on the display devices (210, 230) based on the input signal, and then transmit the same to the display devices (210) and (230), respectively. The display device (210) can output a screen and sound based on the control signal received from the display device (220). The display device (230) can output a screen and sound based on the control signal received from the display device (220).

[0098] Referring to FIG. 4B, the display device (210) can serve as a master device. The display device (210) can receive an input signal from an external electronic device (240), generate a screen and sound control signal to be displayed on the display device (220, 230) based on the input signal, and then transmit the same to the display device (220). The display device (220) can output a screen and sound based on the control signal received from the display device (210), and transmit a screen and sound control signal to be displayed on the display device (230) to the display device (230). The display device (230) can output a screen and sound based on the control signal received from the display device (220).

[0099] In one embodiment, an external electronic device (240) or a master device (e.g., a display device (220) in FIG. 4A, a display device (210) in FIG. 4B) may receive an input signal (e.g., a video signal, an audio signal) from the external electronic device (240) and identify display modes of a plurality of display devices based on the input signal. In the following description, an example in which the external electronic device (240) identifies the display modes of a plurality of display devices and controls the audio of the display devices accordingly is described, but this is merely an example, and a master device may also identify the display modes of a plurality of display devices and control the audio of the display devices accordingly, as shown in FIGS. 3A and 3B.

[0100] In the following description, the external electronic device (240) is described as a separate device from the plurality of display devices, but this is only an example, and all or part of the configuration of the external electronic device may be included in the plurality of display devices. In other words, all or part of the functions of the external electronic device (240) described below may be performed by at least one of the plurality of display devices (210, 220, 230). The external electronic device may be referred to as an “image transmitting and receiving device.” For example, an SoC (e.g., SoC (244)) may be included not only in the external electronic device (240) but also in at least one of the plurality of display devices. In other words, the SoC may be included in at least one of the plurality of display devices (210, 220, 230), not in the external electronic device (240). When at least one display device among a plurality of display devices includes an SoC, the external electronic device (240) and the at least one display device including the SoC can perform operations for controlling image and audio signals of the plurality of display devices (210, 220, 230).

[0101] In one embodiment, the external electronic device (240) can identify information about a screen to be displayed on a plurality of display devices based on an input signal, and can identify a display mode of the plurality of display devices based on the information. The display mode may include an extended display mode and a single display mode. The extended display mode displays a plurality of display devices based on an input from a single source, and may include a mode in which the screen is displayed in an expanded manner. The extended display mode may be referred to as a “multi-monitor mode.” The single display mode may include a mode in which each of the plurality of display devices displays a screen based on a different input source.

[0102] In one embodiment, the external electronic device (240) may compare the number of linked display devices with the number of input sources. For example, if the number of linked display devices and the number of input sources are equal, it may be determined that both display devices are operating in single display mode. For example, if the number of linked display devices is greater than the number of input sources, it may be determined that at least two display devices are operating in extended display mode.

[0103] In one embodiment, the external electronic device (240) can identify that all three display devices are operating in extended display mode. The operation of the external electronic device (240) identifying that the three display devices are operating in extended display mode may include the operation of identifying that the extended display function is activated. For example, the external electronic device (240) can identify that the display device (210), the display device (220), and the display device (230) are all operating in extended display mode. In this case, the display device (210), the display device (220), and the display device (230) can output screens and sounds based on a single input source.

[0104] In one embodiment, the external electronic device (240) can identify that two display devices are operating in extended display mode and the remaining display device is operating in single display mode. The operation of the external electronic device (240) identifying that the two display devices are operating in extended display mode may include the operation of identifying that the extended display function of the two display devices is activated. For example, the external electronic device (240) can identify that the display devices (210 and 220) are operating in extended display mode and the display device (230) is operating in single display mode. In this case, the display devices (210 and 220) can output screens and sounds based on a single input source, and the display device (230) can identify that the screens and sounds are output through a different type of input source than the display devices (210 and 220).

[0105] In one embodiment, the external electronic device (240) can identify that the display device (210), the display device (220), and the display device (230) are all operating in a single display mode. For example, if the input sources input to the display device (210), the display device (220), and the display device (230) are all different, the external electronic device (240) can determine that the display device (210), the display device (220), and the display device (230) are all operating in a single display mode.

[0106] In one embodiment, an external electronic device (240) may receive an input signal (e.g., a video signal, an audio signal) from a source device (e.g., a source device (250)), analyze the input signal, and identify a volatility value of a screen displayed on a plurality of display devices (display device (210), display device (220), display device (230)).

[0107] In one embodiment, the external electronic device (240) can compare the volatility values ​​of the screens of each of the identified display devices and increase the sound intensity of the speakers of the display device having the greatest volatility value and the display devices adjacent thereto.

[0108] In one embodiment, when all three display devices (210, 220, 230) are identified as operating in extended display mode, the external electronic device (240) may analyze the input signal to identify the variability value of the screen to be displayed on each of the display devices, and increase the sound intensity of the display device displaying the portion with the highest variability and the speaker adjacent to the display device displaying the portion with the highest variability. For example, when the display device (220) is identified as having the highest variability value, the sound intensity of the first speaker (223), the second speaker (224), and the second speaker (214), which are speakers positioned adjacent to the display device (220), and the first speaker (233) may be increased. For example, if the display device (210) is identified as having the highest variability value, the external electronic device (240) can increase the sound intensity of the first speaker (213), the second speaker (214), and the first speaker (223), which is a speaker positioned adjacent to the display device (210). For example, if the display device (230) is identified as having the highest variability value, the external electronic device (240) can increase the sound intensity of the first speaker (233), the second speaker (234), and the second speaker (224), which is a speaker positioned adjacent to the display device (230). In one embodiment, the speakers (the first speaker (213), the second speaker (214), and the first speaker (223)) positioned to the left of the center point can output sound of the left channel of the input signal, and the speakers (the second speaker (224), the first speaker (233), and the second speaker (234)) positioned to the right of the center point can output sound of the right channel of the input signal.In one embodiment, the sound intensity of a speaker positioned on a display device having the largest variability value may be increased by a first value, and the sound intensity of a speaker positioned adjacent to a display device having the largest variability value may be increased by a second value that is less than the first value.

[0109] In one embodiment, when identifying that two display devices are operating in extended display mode and one display device is operating in single display mode, the external electronic device (240) may analyze an input signal of the display device operating in extended display mode to identify a volatility value of the screen, and increase the sound intensity of the display device displaying the portion with high volatility and a speaker adjacent to the display device displaying the portion with high volatility. For example, when identifying that the display device (210) is operating in single display mode and the display device (220) and the display device (230) are operating in extended display mode, the external electronic device (240) may increase the sound intensity of the display device having the larger volatility value among the display devices (220 and 230). For example, if the display device (210) is identified as operating in a single display mode and the display device (220) and the display device (230) are identified as operating in an extended display mode, the external electronic device (240) can increase the sound intensity of the display device that has a larger variability value among the display device (220) and the display device (230). For example, if the display device (212) is identified as operating in a single display mode and the display device (210) and the display device (230) are identified as operating in an extended display mode, the external electronic device (240) can increase the sound intensity of the display device that has a larger variability value among the display device (210) and the display device (230). For example, if the display device (230) is identified as operating in a single display mode and the display device (210) and the display device (220) are identified as operating in an extended display mode, the external electronic device (240) can increase the sound intensity of the display device that has a larger variability value among the display device (210) and the display device (220).In one embodiment, when the volatility value of a display device operating in a single display mode is the greatest, only the sound output intensity of the display device operating in a single display mode may be increased, and the sound intensity of the remaining display devices may not be increased.

[0110] In one embodiment, the external electronic device (240) may use an object (e.g., a person, an animal, an object, etc.) recognition technology utilizing machine learning, etc., to identify the volatility values ​​of the display devices, thereby recognizing the movement of the object and increasing the sound of the display device on which the object is displayed. In other words, the screen display area of ​​the display device operating through the extended display mode may be divided into a left area (e.g., 1-1 area, 2-1 area) and a right area (e.g., 1-2 area, 2-2 area), and the object recognition technology may be used to identify the area where the object is located, and the sound intensity of the speaker corresponding to the area where the object is located may be increased.

[0111] In one embodiment, the external electronic device (240) can isolate the sound source of the identified object and amplify only the sound of that object.

[0112] In one embodiment, the external electronic device (240) may only increase the sound intensity of a speaker placed in the area where the object is located on the display device where the object is displayed.

[0113] In one embodiment, when all three display devices are identified as operating in a single display mode, the external electronic device (240) can control the sound intensity based on the screen display status of the display device displaying the main screen among the multiple display devices.

[0114] In one embodiment, when all of the plurality of display devices operate in single display mode, the external electronic device (240) may determine a screen displayed on any one of the plurality of display devices as the main screen. For example, when all three display devices operate in single display mode, the screen displayed on the display device arranged in the middle of the three may be determined as the main screen. For example, when all of the three display devices operate in single display mode, the screen displayed on the display device arranged on the left of the three may be determined as the main screen. For example, when all of the three display devices operate in single display mode, the screen displayed on the display device arranged on the right of the three may be determined as the main screen. For example, the screen with the highest variability value among the screens displayed on the plurality of display devices may be determined as the main screen.

[0115] In one embodiment, the external electronic device (240) may increase the sound intensity of the main display device or the remaining display devices based on the screen variability value of the display device displaying the main screen. For example, if the display device displaying the main screen is determined to be the display device (220), and if the screen variability value of the display device (220) is equal to or greater than a predetermined value, the sound intensity of the display device (220) may be increased, and the sound intensity of the display devices (210, 230) may be decreased or turned off. If the screen variability value of the display device (220) is equal to or less than a predetermined value, the sound intensity of the display device (220) may be decreased, and the sound intensity of the display devices (210, 230) may be decreased or turned off. In other words, in a situation where the main screen (e.g., a game execution screen) is displayed on the display device arranged in the center, and other content such as additional information and advertisements are displayed on the remaining display devices (210, 230), the sounds of the main screen and the additional screens may be controlled depending on the progress status of the main screen. During the game (when the volatility value is greater than a predetermined value), the sound of the main screen is focused, and during the game pause (when the volatility value is less than a predetermined value), the sound of the additional screen (210, 220) is focused to provide a three-dimensional sound.

[0116] FIG. 5A illustrates an example of a connection structure of display devices according to one embodiment. FIG. 5B illustrates an example of a connection structure of display devices according to one embodiment. FIG. 5C illustrates an example of a connection structure of a display device and a server according to one embodiment. FIG. 5D illustrates an example of a connection structure of a display device and an external electronic device according to one embodiment. In one embodiment, the display device (510) may include a different type of display device than the display devices (210, 220, 230).

[0117] In one embodiment, the display device (510) may have information other than audio setting information, screen setting information, etc. that the display devices (210, 220, 230) can support.

[0118] Referring to FIG. 5A, the display device (210) can serve as a master device. Although not shown in the drawing, the display device (210) can receive an input signal from a source device (e.g., source device (250)), generate a screen and sound control signal to be displayed on the display device (510, 230) based on the input signal, and then transmit the same to the display device (510). The display device (510) can output a screen and sound based on the control signal received from the display device (210), and transmit a screen and sound control signal to be displayed on the display device (230) to the display device (230). The display device (230) can output a screen and sound based on the control signal received from the display device (510).

[0119] Referring to FIG. 5B, the display device (210) can serve as a master device. Although not shown in the drawing, the display device (210) can receive an input signal from a source device (e.g., source device (250)), generate a screen and sound control signal to be displayed on the display device (220, 510) based on the input signal, and then transmit the same to the display device (220). The display device (220) can output a screen and sound based on the control signal received from the display device (210), and transmit the screen and sound control signal to be displayed on the display device (510) to the display device (510). The display device (510) can output a screen and sound based on the control signal received from the display device (220).

[0120] Even in a connection structure such as that illustrated in FIGS. 5A and 5B, a master device or an external electronic device (not illustrated) can identify screen variability values ​​of multiple display devices and control sound intensity. In other words, the operations of the master device and the external electronic device described in the descriptions with respect to FIGS. 3A, 3B, 4A, and 4B can be equally applied to the connection between heterogeneous display devices. However, since the device capabilities of the display devices (210, 220, and 230) and the display device (510) may be different, before performing the operations of the master device and the external electronic device described in the descriptions with respect to FIGS. 3A, 3B, 4A, and 4B, the master device and the external electronic device can check the device capability information of the display device (510).

[0121] Referring to FIG. 5c, a connection structure of display devices according to one embodiment may include a connection structure between a server device (620) and a plurality of display devices (210, 220, 230). The server device (520) may be a device that includes the functions of both a source device (250) and an external electronic device (240).

[0122] In one embodiment, when all of the plurality of display devices (210, 220, 230) operate in extended display mode, each of the plurality of display devices (210, 220, 230) can receive input signals from the server device (520).

[0123] In one embodiment, multiple display devices (210, 220, 230) can exchange information regarding their respective sound output settings. In other words, the sound level of each display can be set through information exchange between the display devices. One of the multiple display devices (210, 220, 230), such as a master device or server device (520), can generate the sound level setting information.

[0124] In one embodiment, when multiple display devices (210, 220, 230) all operate in a single display mode, each of the multiple display devices (210, 220, 230) receives an input signal from the server device (520), and the sound level can be adjusted based on the screen volatility value of the display device on which the main screen is displayed. This can be controlled by the master device, which is either the server device (520) or one of the multiple display devices (210, 220, 230). In other words, whether to output sound for the main screen and the additional screen can be determined based on the display status of the main screen.

[0125] In one embodiment, the server device (520) or master device can control sound output based on the degree of current variation of the display device. Since the current variation value used in the panel of the display device that displays a screen with a large variability value is greater, the server device (520) or master device can increase the sound intensity of the display device with a large current variation value.

[0126] In one embodiment, in a signal transmitted from a SoC or scaler of multiple display devices to a panel, the degree of change in H pixels and V pixels can be compared to increase the sound intensity of the display device that changes the most.

[0127] Referring to FIG. 5D, display devices (210, 220, 230) according to one embodiment may be connected to an external electronic device (240), respectively. The external electronic device (240) may identify the operation modes of the plurality of display devices (210, 220, 230). The external electronic device (240) may control the sound output of the plurality of display devices (210, 220, 230) based on the identified display modes.

[0128] In one embodiment, the display devices (210, 220, 230) may each receive an input signal from an external electronic device (240). The input signal may include a signal related to an image and a signal related to an audio signal. The external electronic device (240) may analyze the input signals input to the plurality of display devices (210, 220, 230) to identify a variability value of a screen displayed on each display device. The external electronic device (240) may increase the sound intensity of the display device with the highest variability value and may increase the sound intensity of a speaker placed adjacent to the display device with the highest variability value. Through information exchange between the display devices, the sound of the display devices may be controlled according to the current consumption and the number of pixel fluctuations.

[0129] In one embodiment, the external electronic device (240) may receive an input signal from a source device (e.g., source device (250)) and transmit the signal to a plurality of display devices. The external electronic device (240) may display a main screen on the display device (220) arranged in the center, and display other content such as additional information and advertisements on the remaining display devices (210, 230). At this time, the external electronic device (240) may analyze the input signals input to the plurality of display devices (210, 220, 230), identify the status of the display device (220) displaying the main screen, and control the audio output of the main screen and the additional screen according to the status. At this time, the external electronic device (240) may control the information exchange between the display devices, and the audio output may be controlled through mutual information transmission between the display devices.

[0130] FIG. 6 illustrates an operational flow of an electronic device according to one embodiment. The electronic device of FIG. 6 may correspond to the electronic device (100) of FIG. 1, the display devices (210, 220, 230) or the external electronic device (240) of FIG. 2, the master device of FIGS. 3A and 3B, and the external electronic device (240) of FIGS. 4A and 4B. In other words, the electronic device may be an operation of a master device (i.e., any one of the plurality of display devices) or an external electronic device that performs operations to control the screen output and sound of a plurality of display devices. In the description of FIG. 6, descriptions of contents that overlap with those described in the previous drawings may be omitted. The description of FIG. 6 illustrates a structure in which three display devices are connected as an example, but this is merely an example, and embodiments of the present disclosure may be similarly applied to display devices having three or more or less than three.

[0131] According to one embodiment, in operation 610, the electronic device can identify that an extended display function of at least two of the plurality of display devices and the electronic device is activated.

[0132] In one embodiment, the electronic device may be one of a plurality of display devices. In this case, the electronic device may serve as a master device. In this case, the electronic device may also be included in at least two devices.

[0133] In one embodiment, the electronic device may be an electronic device (e.g., an external electronic device (240)) that transmits an input signal from a source device to multiple display devices, rather than multiple display devices. In this case, the input signal and a control signal for controlling the screen and sound of the multiple display devices may be transmitted to a display device that serves as a master among the multiple display devices. In this case, the electronic device cannot be included in at least two devices.

[0134] In one embodiment, the extended display function may include the ability to control two or more display devices based on a single input source. For example, the function may include the ability to split and display a single video or image across two or more display devices.

[0135] In one embodiment, the electronic device can identify that the extended display function of two devices is activated. In this case, the two devices can display a single screen as a single whole based on one input, and the other device can display a single screen based on an input different from the input of the two devices. The electronic device can identify information about the screens displayed on the two devices and the other device, and control the screen display and audio settings of the two devices and the other device based on this information.

[0136] In one embodiment, the electronic device can identify that the extended display function of three display devices is activated. In this case, the three devices can display a single screen as a whole based on a single input. The electronic device can identify information about the screens displayed on the three devices and control the screen display and audio settings of the three devices based on this information.

[0137] In one embodiment, the electronic device can identify that an extended display function of at least two devices is activated in response to identifying that the at least two devices are physically connected (e.g., via a hinge, a high-definition multimedia interface (HDMI), or a USB-C). If the at least two devices are already connected via an HDMI connection, the electronic device can identify that the extended display function of the at least two devices is activated when identifying that the at least two devices are physically connected via a hinge in addition to the HDMI connection. The meaning of the extended display function being activated may have the same meaning as the meaning of operating in an extended display mode.

[0138] In one embodiment, the electronic device may determine that the extended display function of at least two devices is activated when a user input for activating the extended display function of at least one of the at least two devices is identified.

[0139] According to one embodiment, in operation 620, the electronic device can identify a variability value indicating a degree of screen change of at least two devices based on a video signal input to the electronic device.

[0140] In one embodiment, an electronic device can identify information about screens displayed on a plurality of display devices from an input signal. The electronic device can identify a variability value of the screens displayed on each display device based on the input signal.

[0141] In one embodiment, the electronic device can identify the variability values ​​of at least two devices based on the degree of variation in pixels displayed on the screens of the at least two devices. For example, the degree of variation in H pixels and V pixels can be identified to identify the variability values ​​of each device.

[0142] In one embodiment, the electronic device may perform object recognition using artificial intelligence technology or the like to identify the location of the object, the degree to which the object moves, and the like, and identify the volatility values ​​of the display devices based thereon.

[0143] According to one embodiment, in operation 630, the electronic device can increase the sound intensity of the speakers of the first device having the highest variability value among the at least two devices. By increasing the sound intensity of the device having the highest variability value, a three-dimensional sound service can be provided.

[0144] In one embodiment, the first device may include at least two speakers (e.g., a first speaker and a second speaker).

[0145] According to one embodiment, in operation 640, the electronic device may increase the sound intensity of a speaker disposed on a first side of a second device of the at least two devices.

[0146] In one embodiment, when the number of at least two devices is three, the second device may be any two devices other than the first device.

[0147] In one embodiment, when the number of at least two devices is two, the second device may be any one device other than the first device.

[0148] In one embodiment, the first side of the second device may include a surface proximate the first device. For example, if the first device is a display device (210) and the second device is a display device (220), the first side of the second device may be a surface on which the first speaker of the second device is located.

[0149] In one embodiment, the electronic device can increase the sound intensity of at least two speakers of the first device by a first value and increase the sound intensity of a speaker disposed on a first side of the second device by a second value. The first value can have a value greater than the second value.

[0150] In one embodiment, the sound channel of speakers positioned in a first direction from a center point among the speakers of at least two devices may be a first channel, and the sound channel of speakers positioned in a second direction opposite to the first direction from the center point among the speakers of the at least two devices may be a second channel. The center point may be a center point of the at least two devices.

[0151] In one embodiment, the volatility value of the second device may be greater than a predetermined value. In other words, even if the device is operating in extended display mode with the first device, the sound intensity of the second device may not be increased if the degree of screen change is below a predetermined level.

[0152] In one embodiment, based on a video signal input to the electronic device, the electronic device may identify frames of screens displayed on the at least two devices and measure differences in pixel values ​​of the frames to identify a volatility value indicating a degree of screen change of the at least two devices. A greater difference in pixel values ​​may be determined to have a greater volatility value.

[0153] Fig. 7 illustrates an example of sound control of a display device according to one embodiment. Fig. 7 illustrates a case-by-case scenario of controlling the sound output of three display devices according to the operational flow of the electronic device according to Fig. 6. For example, an example of controlling sound output based on the volatility value of the display devices is illustrated.

[0154] Referring to FIG. 7, D1 may indicate a display device corresponding to the display device (210), D2 may indicate a display device corresponding to the display device (220), and D3 may indicate a display device corresponding to the display device (230).

[0155] In one embodiment, a “device in extended display mode” may include at least two devices as described in FIG. 6.

[0156] In one embodiment, the volatility value of FIG. 7 may be a value indicating the degree of screen change of each display device.

[0157] Referring to FIG. 7, an example is given in which three display devices are connected, but this is only an example, and embodiments of the present disclosure can be applied even when more or fewer display devices than three are connected.

[0158] In one embodiment, the first speaker may include a speaker positioned on a first side (e.g., a left side) of the display device, and the second speaker may include a speaker positioned on a second side (e.g., a right side) of the display device. In the following description, the display device is described as including only the first speaker and the second speaker as an example, but the embodiments of the present disclosure may be equally applicable when the display device includes two or more speakers or is connected to two or more audio output devices.

[0159] In one embodiment, sound of the left channel of the stereo system may be output through the first speaker, and sound of the right channel of the stereo system may be output through the second speaker.

[0160] In one embodiment, LS (Left channel of Single display) may indicate sound of the left channel of an audio signal input to a display device that operates as a single display.

[0161] In one embodiment, RS (right channel of Single display) may indicate sound of the right channel of an audio signal input to a display device that operates as a single display.

[0162] In one embodiment, LE (Left channel of Extended display) may indicate sound of the left channel of an audio signal input to display devices with the extended display function enabled.

[0163] In one embodiment, RE (right channel of Extended display) may indicate sound of the right channel of an audio signal input to display devices with the extended display function enabled.

[0164] In one embodiment, D1, D2, and D3 may be arranged in order from left to right.

[0165] According to one embodiment, in at least two devices with an extended display function activated, sound (LE) of a left channel may be output based on a center point of the at least two devices, and sound (RE) of a right channel may be output from speakers positioned to the right of the center point.

[0166] In one embodiment, when D1, D2, and D3 are all operating in extended display mode, the center point of at least two devices can be the center point of D2. Accordingly, when D1, D2, and D3 are all operating in extended display mode, the first speaker of D1, the second speaker of D1, and the first speaker of D2, which are located to the left of the center point of D2, can output LE, and the second speaker of D2, the first speaker of D3, and the second speaker of D3, which are located to the right of the center point of D2, can output RE.

[0167] In one embodiment, when two devices among D1, D2, and D3 operate in extended display mode, a speaker positioned on the left side of the center point of the two devices may output LE, speakers positioned on the right side may output RE, and the first speaker of the remaining device, that is, the device operating in single display mode, may output LS and the second speaker may output RS. For example, when two devices operating in extended display mode are D2 and D3, since the contact surface of D2 and D3 is the center point, the first speaker and second speaker of D2, which is the speaker positioned on the left side of the contact surface, may output LE, and the first speaker and second speaker of D3, which is the speaker positioned on the right side, may output RE. In addition, the first speaker of D1, which operates alone, may output LS, and the second speaker may output RS.

[0168] In one embodiment, when all three devices are operating in extended display mode, the sound intensity of the device having the largest variability value may be increased by a first value, and the sound intensity of the speaker positioned closer to the device having the largest variability value may be increased by a second value. For example, when D1, D2, and D3 are all operating in extended display mode and the variability value of D2 is the largest, the sound intensity of the first speaker and the second speaker of D2 may be increased by the first value, and the sound intensity of the second speaker of D1 and the first speaker of D3, which are positioned closer to D2, may be increased by the second value.

[0169] In one embodiment, when two devices are operating in extended display mode, only the sound intensity of the display device operating in extended display mode may be increased. For example, when D2 and D3 are operating in extended display mode and D1 is operating in single display mode, if the variability value of D2 is greater than the variability value of D3, only the sound intensity of the speakers of D2 may be increased by a second value.

[0170] Fig. 8 illustrates an operational flow of an electronic device according to one embodiment. Fig. 8 may include all operational details of the electronic device of Fig. 6. The operation of the electronic device of Fig. 8 relates to a specific example of an operation in which the electronic device identifies volatility values ​​of multiple display devices and increases the sound intensity of the display device with the highest volatility value.

[0171] In one embodiment, an electronic device may identify an area where an object displayed on a screen of a display device is located based on an input signal. The area where the object is located may include an area where an object displayed through an image (e.g., a person, an animal, an object, etc.) is located. The area where the object is located may be divided into a left area and a right area depending on the display device. In the following description, the area where the object is located is divided into two areas, a left area and a right area, as an example, but this is only an example and the area may be divided into more than two areas.

[0172] According to one embodiment, at operation 820, the electronic device may increase the sound intensity of the speaker corresponding to the area where the object is located.

[0173] In one embodiment, when an object is identified as being located in the left area of ​​the display device, the sound intensity of a first speaker positioned in the left area of ​​the display device may be increased. When an object is identified as being located in the right area of ​​the display device, the sound intensity of a second speaker positioned in the right area of ​​the display device may be increased.

[0174] FIG. 9A illustrates an example of sound output control according to an area where an object of an electronic device is located, according to one embodiment. FIG. 9B illustrates an example of sound output control according to an area where an object of an electronic device is located, according to one embodiment. FIG. 9C illustrates an example of sound output control according to an area where an object of an electronic device is located, according to one embodiment. FIG. 9D illustrates an example of sound output control according to an area where an object of an electronic device is located, according to one embodiment. FIG. 9E illustrates an example of sound output control according to an area where an object of an electronic device is located, according to one embodiment. FIG. 9F illustrates an example of sound output control according to an area where an object of an electronic device is located, according to one embodiment. In the description of FIGS. 9A to 9F, any content that overlaps with the content described in FIGS. 6 to 8 may be omitted.

[0175] In one embodiment, the first speaker may include a speaker positioned on a first side (e.g., a left side) of the display device, and the second speaker may include a speaker positioned on a second side (e.g., a right side) of the display device. In the following description, the display device is described as including only the first speaker and the second speaker as an example, but the embodiments of the present disclosure may be equally applicable when the display device includes two or more speakers or is connected to two or more audio output devices.

[0176] In one embodiment, sound of the left channel of the stereo system may be output through the first speaker, and sound of the right channel of the stereo system may be output through the second speaker.

[0177] In one embodiment, LS (Left channel of Single display) may indicate sound of the left channel of an audio signal input to a display device that operates as a single display.

[0178] In one embodiment, RS (right channel of Single display) may indicate sound of the right channel of an audio signal input to a display device that operates as a single display.

[0179] In one embodiment, LE (Left channel of Extended display) may indicate sound of the left channel of an audio signal input to display devices with the extended display function enabled.

[0180] In one embodiment, RE (right channel of Extended display) may indicate sound of the right channel of an audio signal input to display devices with the extended display function enabled.

[0181] In one embodiment, D1, D2, and D3 may be arranged in order from left to right.

[0182] According to one embodiment, in at least two devices with an extended display function activated, sound (LE) of a left channel may be output based on a center point of the at least two devices, and sound (RE) of a right channel may be output from speakers positioned to the right of the center point.

[0183] In one embodiment, region 1-1 may include a left region of D1. Region 1-2 may include a right region of D2. Region 2-1 may include a left region of D2. Region 2-2 may include a right region of D2. Region 3-1 may include a left region of D3. Region 3-2 may include a right region of D3.

[0184] In one embodiment, the electronic device may identify the area in which the object is located as area 1-1, area 1-2, area 2-1, area 2-2, area 3-1, or area 3-2 according to operation 810.

[0185] Referring to FIG. 9a, an example of sound control of multiple display devices of an electronic device is illustrated when the area where the object is located is area 1-1.

[0186] In one embodiment, if no device is in extended display mode, the electronic device may increase the sound intensity of the first speaker of D1 by a second value.

[0187] In one embodiment, when all three display devices are operating in extended display mode, the electronic device can increase the sound intensity of the first speaker of D1 by a first value, and increase the sound intensity of the second speaker of D1 adjacent to the first speaker of D1 by a second value.

[0188] In one embodiment, when two display devices are operating in an extended display mode (e.g., D1, D2) and the remaining one display device is operating in a single display mode (e.g., D3), the electronic device can increase the sound intensity of the first speaker of D1 by a first value and increase the sound intensity of the second speaker of D1 by a second value.

[0189] Referring to FIG. 9b, an example of sound control of multiple display devices of an electronic device is shown when the area where the object is located is area 1-2.

[0190] In one embodiment, if no device is in extended display mode, the electronic device may increase the sound intensity of the second speaker of D1 by a second value.

[0191] In one embodiment, when all three display devices are operating in extended display mode, the electronic device can increase the sound intensity of the second speaker of D1 by a first value, and increase the sound intensity of the first speaker of D1 and the first speaker of D2 adjacent to the second speaker of D1 by a second value.

[0192] In one embodiment, when two display devices operate in an extended display mode (e.g., D1, D2) and the other display device operates in a single display mode (e.g., D3), the electronic device can increase the sound intensity of the second speaker of D1 by a first value, increase the sound intensity of the first speaker of D1 by a second value, and increase the sound intensity of the first speaker of D2 by the second value.

[0193] Referring to FIG. 9c, an example of sound control of multiple display devices of an electronic device is shown when the area where the object is located is area 2-1.

[0194] In one embodiment, if no device is in extended display mode, the electronic device may increase the sound intensity of the first speaker of D2 by a second value.

[0195] In one embodiment, when all three display devices are operating in extended display mode, the electronic device can increase the sound intensity of the first speaker of D2 by a first value, and increase the sound intensity of the second speaker of D1 and the second speaker of D2 adjacent to the first speaker of D2 by a second value.

[0196] In one embodiment, when two display devices operate in an extended display mode (e.g., D1, D2) and the other display device operates in a single display mode (e.g., D3), the electronic device can increase the sound intensity of the first speaker of D2 by a first value, increase the sound intensity of the second speaker of D1 by a second value, and increase the sound intensity of the second speaker of D2 by the second value.

[0197] Referring to FIG. 9d, an example of sound control of multiple display devices of an electronic device is shown when the area where the object is located is area 2-2.

[0198] In one embodiment, if no device is in extended display mode, the electronic device may increase the sound intensity of the second speaker of D2 by a second value.

[0199] In one embodiment, when all three display devices are operating in extended display mode, the electronic device can increase the sound intensity of the second speaker of D2 by the first value, and increase the sound intensity of the first speaker of D2 and the first speaker of D3 adjacent to the second speaker of D2 by the second value.

[0200] In one embodiment, when two display devices are operating in an extended display mode (e.g., D1, D2) and the remaining display device is operating in a single display mode (e.g., D3), the electronic device can increase the sound intensity of the first speaker of D2 by a first value and increase the sound intensity of the first speaker of D2 by a second value.

[0201] Referring to FIG. 9e, an example of sound control of multiple display devices of an electronic device is shown when the area where the object is located is area 3-1.

[0202] In one embodiment, if no device is in extended display mode, the electronic device may increase the sound intensity of the first speaker of D3 by a second value.

[0203] In one embodiment, when all three display devices are operating in extended display mode, the electronic device can increase the sound intensity of the first speaker of D3 by a first value, and increase the sound intensity of the second speaker of D2 adjacent to the first speaker of D3 and the second speaker of D3 by a second value.

[0204] In one embodiment, when two display devices operate in an extended display mode (e.g., D2, D3) and the other display device operates in a single display mode (e.g., D1), the electronic device can increase the sound intensity of the first speaker of D3 by a first value, increase the sound intensity of the second speaker of D2 by a second value, and increase the sound intensity of the second speaker of D3 by a second value.

[0205] Referring to FIG. 9e, an example of sound control of multiple display devices of an electronic device is shown when the area where the object is located is area 3-2.

[0206] In one embodiment, if no device is in extended display mode, the electronic device may increase the sound intensity of the second speaker of D3 by a second value.

[0207] In one embodiment, when all three display devices are operating in extended display mode, the electronic device can increase the sound intensity of the second speaker of D3 by a first value and increase the sound intensity of the first speaker of D3 adjacent to the second speaker of D3 by a second value.

[0208] In one embodiment, when two display devices are operating in an extended display mode (e.g., D1, D2) and the remaining display device is operating in a single display mode (e.g., D3), the electronic device can increase the sound intensity of the second speaker of D3 by a first value and increase the sound intensity of the first speaker of D3 by a second value.

[0209] According to one embodiment of the present disclosure, a method for operating an electronic device connected to a plurality of display devices may include an operation for identifying that an extended display function of at least two of the plurality of display devices and the electronic device is activated. In one embodiment, the method for operating the electronic device may include an operation for increasing the sound intensity of speakers of a first device having a highest variability value among the at least two devices. In one embodiment, the method for operating the electronic device may include an operation for increasing the sound intensity of a speaker disposed adjacent to the first device. In one embodiment, the variability value may indicate a degree of screen change of the at least two devices. In one embodiment, the variability value may be identified based on a video signal input to the electronic device.

[0210] In one embodiment, the speaker disposed adjacent to the first device may be disposed on a first side of a second device among the at least two devices, and the first side of the second device may be a side facing the first device.

[0211] In one embodiment, sound channels of speakers positioned in a first direction from a central point among the speakers of the at least two devices include a first channel, and sound channels of speakers positioned in a second direction opposite to the first direction from the central point among the speakers of the at least two devices include a second channel, wherein the central point may include a central point of the at least two devices.

[0212] In one embodiment, the sound intensity of the first device is increased by a first value, the sound intensity of the second device is increased by a second value, and the first value may have a value greater than the second value.

[0213] In one embodiment, the operation of identifying that an extended display function of at least two of the plurality of display devices and the electronic device is activated may include an operation of identifying that the extended display function of the at least two devices is activated in response to identifying that the at least two devices are physically connected via at least one hinge.

[0214] In one embodiment, the method of operating an electronic device may include an operation of identifying frames of screens displayed on at least two devices. In one embodiment, the method of operating an electronic device may include an operation of measuring a difference in pixel values ​​of the frames. In one embodiment, the method of operating an electronic device may include an operation of identifying the volatility values ​​of the at least two devices.

[0215] In one embodiment, a method of operating an electronic device may include an operation of identifying the volatility values ​​of the at least two devices based on an area in which an object displayed on a screen of the at least two devices is located.

[0216] In one embodiment, the act of increasing the sound intensity of the speakers of the first device having the largest variability value among the at least two devices may include the act of increasing the sound intensity of the speakers corresponding to the area where the object is located.

[0217] An electronic device connected to a plurality of display devices according to one embodiment of the present disclosure may include at least two speakers and a processor connected to the at least two speakers. In one embodiment, the processor may identify that an extended display function of at least two of the plurality of display devices and the electronic device is activated. In one embodiment, the processor may increase the sound intensity of the speakers of a first device having a highest variability value among the at least two devices. In one embodiment, the processor may increase the sound intensity of a speaker disposed adjacent to the first device. In one embodiment, the variability value may indicate a degree of screen change of the at least two devices. In one embodiment, the variability value may be identified based on a video signal input to the electronic device.

[0218] In one embodiment, the speaker disposed adjacent to the first device may be disposed on a first side of a second device of the at least two devices, wherein the first side of the second device may include a side facing the first device.

[0219] In one embodiment, the sound channels of the speakers positioned in a first direction from the center point among the speakers of the at least two devices may include a first channel. In one embodiment, the sound channels of the speakers positioned in a second direction opposite to the first direction from the center point among the speakers of the at least two devices may include a second channel. In one embodiment, the center point may include the center points of the at least two devices.

[0220] In one embodiment, the sound intensity of the first device is increased by a first value, the sound intensity of the second device is increased by a second value, and the first value may have a value greater than the second value.

[0221] In one embodiment, the electronic device further comprises a connection unit connected to the processor, wherein the processor is configured to, in response to identifying that the at least two devices are physically connected through the at least one connection unit, identify that an extended display function of the at least two devices is activated.

[0222] In one embodiment, the processor may identify frames of a screen displayed on at least two devices. In one embodiment, the processor may be configured to measure differences in pixel values ​​of the frames.

[0223] In one embodiment, the processor may be configured to identify an area in which an object displayed on the screen of the at least two devices is located.

[0224] In one embodiment, the processor may be configured to increase the sound intensity of a speaker corresponding to the area where the object is located.

[0225] In one embodiment of the present disclosure, a non-transitory recording medium storing computer-readable instructions may include an operation for identifying, when executed by at least one processor of an electronic device, that an extended display function of at least two of a plurality of display devices and the electronic device is activated. The instructions may include an operation for increasing the sound intensity of speakers of a first device having a highest variability value among the at least two devices. The instructions may, when executed by at least one processor of the electronic device, perform an operation for increasing the sound intensity of a speaker disposed adjacent to the first device. In one embodiment, the variability value may indicate a degree of screen change of the at least two devices. In one embodiment, the variability value may be identified based on a video signal input to the electronic device.

[0226] In one embodiment, the speaker disposed adjacent to the first device may be disposed on a first side of a second device among the at least two devices. In one embodiment, the first side of the second device may include a side facing the first device.

[0227] In one embodiment, the sound channels of the speakers positioned in a first direction from the center point among the speakers of the at least two devices may include a first channel. In one embodiment, the sound channels of the speakers positioned in a second direction opposite to the first direction from the center point among the speakers of the at least two devices may include a second channel. In one embodiment, the center point may include the center points of the at least two devices.

[0228] In one embodiment, the sound intensity of the first device is increased by a first value, the sound intensity of the second device is increased by a second value, and the first value may have a value greater than the second value.

[0229] Electronic devices according to the various embodiments disclosed in this document may take various forms. Electronic devices may include, for example, display devices, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to the embodiments of this document are not limited to the aforementioned devices.

[0230] The various embodiments of this document and the terminology used herein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. For example, a component expressed in the singular should be understood to include a concept including plural components unless the context clearly indicates only the singular. It should be understood that the term "and / or" used in this document encompasses any and all possible combinations of one or more of the listed items. The terms "comprise," "have," "consist of," and the like used in this disclosure are intended to specify only the presence of a feature, component, part, or combination thereof described in this disclosure, and the use of such terms does not exclude the presence or addition of one or more other features, components, parts, or combinations thereof. In this document, phrases such as "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" can each include any one of the items listed together in that phrase, or all possible combinations thereof. Terms such as "first", "second", or "first" or "second" may be used merely to distinguish the corresponding element from other corresponding elements and do not limit the corresponding elements in any other respect (e.g., importance or order).

[0231] The terms "part" or "module" used in various embodiments of this document may include units implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. The "part" or "module" may be an integrally formed component or a minimum unit or part of the component that performs one or more functions. For example, according to one embodiment, the "part" or "module" may be implemented in the form of an application-specific integrated circuit (ASIC).

[0232] The term "if" as used in various embodiments of this document may be interpreted to mean "when," "when," "in response to determining," or "in response to detecting," depending on the context. Similarly, "if it is determined that" or "if this is detected" may be interpreted to mean "upon determining," "in response to determining," "upon detecting," or "in response to detecting," depending on the context.

[0233] The program executed by the server device (200) described in this document may be implemented as hardware components, software components, and / or a combination of hardware components and software components. The program may be executed by any system capable of executing computer-readable instructions.

[0234] Software may include a computer program, code, instructions, or a combination of one or more of these, which can configure a processing device to perform a desired operation or command the processing device, either independently or collectively. Software may be implemented as a computer program including instructions stored on a computer-readable storage medium. Examples of the computer-readable storage medium include magnetic storage media (e.g., read-only memory (ROM), random-access memory (RAM), floppy disks, hard disks, etc.) and optical reading media (e.g., CD-ROMs, digital versatile discs (DVDs)). The computer-readable storage medium may be distributed across network-connected computer systems so that the computer-readable code can be stored and executed in a distributed manner. Computer programs can be distributed online (e.g., by download or upload) through an application store (e.g., Play Store™) or directly between two user devices (e.g., smartphones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily created on a device-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0235] According to various embodiments, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and placed in other components. According to various embodiments, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to various embodiments, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

Claims

1. In a method of operating an electronic device connected to multiple display devices, An action for identifying that an extended display function of at least two of the plurality of display devices and the electronic device is activated; An operation of increasing the sound intensity of the speakers of the first device having the largest variability value among the at least two devices, and Including an action of increasing the sound intensity of a speaker placed adjacent to the first device, A method wherein the above volatility value indicates the degree of screen change of the at least two devices and is identified based on a video signal input to the electronic device.

2. In claim 1, A speaker positioned adjacent to the first device is positioned on a first side of a second device among the at least two devices, A method wherein the first side of the second device includes a surface facing the first device.

3. In claim 2, Among the speakers of the above at least two devices, the sound channels of the speakers located in the first direction from the center point include the first channel, Among the speakers of the at least two devices, the sound channels of the speakers located in a second direction opposite to the first direction from the center point include a second channel, A method wherein the central point comprises the central points of at least two devices.

4. In claim 3, The sound intensity of the first device is increased by the first value, The sound intensity of the second device is increased by the second value, A method wherein the first value is greater than the second value.

5. In claim 1, An operation of identifying that an extended display function of at least two of the above plurality of display devices and the above electronic devices is activated, A method comprising: identifying that an extended display function of said at least two devices is activated in response to identifying that said at least two devices are physically connected via at least one hinge.

6. In claim 5, An action of identifying frames of a screen displayed on at least two devices; An action to measure the difference between pixel values ​​of the above frames, A method comprising the operation of identifying said volatility values ​​of at least two devices.

7. In claim 1, A method comprising an operation of identifying the volatility values ​​of the at least two devices based on an area in which an object displayed on a screen of the at least two devices is located.

8. In claim 7, An operation of increasing the sound intensity of the speakers of the first device having the largest variability value among the at least two devices, A method comprising the action of increasing the sound intensity of a speaker corresponding to an area where the object is located.

9. In an electronic device connected to multiple display devices, At least two speakers; comprising a processor connected to at least two speakers; The above processor, Identifying that the extended display function of at least two of the above plurality of display devices and the electronic device is activated, Increase the sound intensity of the speakers of the first device having the largest variability value among the at least two devices, configured to increase the sound intensity of a speaker placed adjacent to the first device; A device wherein the above variability value indicates the degree of screen change of the at least two devices and is identified based on a video signal input to the electronic device.

10. In claim 9, A speaker positioned adjacent to the first device is positioned on a first side of a second device among the at least two devices, A device wherein the first side of the second device is a side facing the first device.

11. In claim 10, Among the speakers of the above at least two devices, the sound channel of the speakers located in the first direction from the center point is the first channel, Among the speakers of the at least two devices, the sound channel of the speakers located in a second direction opposite to the first direction from the center point is the second channel, A device wherein the central point is the central point of at least two devices.

12. In claim 11, The sound intensity of the first device is increased by the first value, The sound intensity of the second device is increased by the second value, A device wherein the first value is greater than the second value.

13. In claim 12, Further comprising a connection portion connected to the above processor, The above processor: A device configured to identify that an extended display function of the at least two devices is activated in response to identifying that the at least two devices are physically connected via at least one hinge.

14. In claim 13, The above processor: Identifying frames of a screen displayed on at least two devices, A device configured to measure the difference between pixel values ​​of said frames.

15. In claim 9, The above processor, A device configured to identify an area where an object displayed on the screens of at least two devices is located, and increase the sound intensity of a speaker corresponding to the area where the object is located.

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