Display system, display device, and operation method thereof

Abstract

A display device and an operation method thereof are disclosed. A display device according to at least one of various embodiments of the present disclosure may comprise: a memory; and a processor which searches for neighboring source devices, stores a sink device list and a source device list, transmits a second signal to a network when a first signal is received from a first source device among the discovered source devices, and registers the first source device in a first list if the first source device is included in the stored source device list when a third signal is received from the first source device.

Description

Display system, display device and method of operation thereof

[0001] The present disclosure relates to a display system, a display device, and an operating method thereof.

[0002] The functions of recent terminals are becoming more diverse, including data and voice communication, taking pictures and videos through a camera, voice recording, playing music files through a speaker system, and outputting images or videos to a display.

[0003] Some terminals have added electronic game play capabilities or perform multimedia player functions.

[0004] As terminals become more diverse in their functions, they are being implemented in the form of multimedia players with complex functions such as taking photos or videos, playing music or video files, playing games, and receiving broadcasts.

[0005] The present disclosure provides a display system, a display device, and an operating method thereof that connects to only one source device among a plurality of source devices belonging to the same network without adding a separate hardware device, and excludes connection of the remaining source device(s).

[0006] A display device according to at least one of the various embodiments of the present disclosure may include a memory; and a processor that searches for peripheral source devices, stores a sink device list and a source device list, transmits a second signal to a network when a first signal is received from a first source device among the searched source devices, and registers the first source device in the first list when a third signal is received from the first source device and the first source device is included in the stored source device list.

[0007] A method of operating a display device according to at least one of various embodiments of the present disclosure may include the steps of: searching for surrounding source devices; storing a list of sink devices and a list of source devices; receiving a first signal from a first source device among the searched source devices; transmitting a second signal to a network; receiving a third signal from the first source device; and registering the first source device as a list if the first source device is included in the stored list of source devices.

[0008] A display system according to at least one of the various embodiments of the present disclosure comprises: a plurality of source devices; and

[0009] A sink device may include a processor that searches for surrounding source devices, stores a sink device list and a source device list, transmits a second signal to a network when a first signal is received from a first source device among the searched source devices, and registers the first source device in the first list when a third signal is received from the first source device and the first source device is included in the stored source device list.

[0010] According to at least one of the various embodiments of the present disclosure, the following advantages are provided.

[0011] First, there is the advantage of being able to connect the desired source device and sink device to each other without having to add a separate hardware device such as a server.

[0012] Second, since it does not go through a separate server, etc., it has the advantage of reducing the network load caused by the resulting traffic.

[0013] Third, there is the advantage of minimizing security issues such as personal information because it does not go through a separate server, etc.

[0014] Fourth, it has the advantage of improving convenience of use as it can be easily connected to a sync device without requiring a separate authentication process by the user.

[0015] FIG. 1 is a block diagram illustrating the configuration of a display device according to one embodiment of the present disclosure.

[0016] FIG. 2 is a block diagram of a remote control device according to an embodiment of the present disclosure.

[0017] Fig. 3 shows an example of an actual configuration of a remote control device according to one embodiment of the present disclosure.

[0018] FIG. 4 shows an example of utilizing a remote control device according to an embodiment of the present disclosure.

[0019] FIG. 5 is a drawing for explaining the horizontal mode and vertical mode of a stand-type display device according to an embodiment of the present disclosure.

[0020] FIG. 6 is a drawing illustrating a display system according to an embodiment of the present disclosure.

[0021] FIG. 7 is a diagram illustrating a configuration for connection operation of a source device and a sink device according to embodiments of the present disclosure.

[0022] FIG. 8 illustrates a connection operation between a sink device and a source device according to one embodiment of the present disclosure.

[0023] FIG. 9 is a drawing showing an example of a user interface provided by a sink device according to one embodiment of the present disclosure.

[0024] Hereinafter, embodiments related to the present disclosure will be described in more detail with reference to the drawings. The suffixes "module" and "part" used in the following description for components are assigned or used interchangeably solely for the convenience of writing the specification, and do not in themselves have distinct meanings or roles.

[0025] FIG. 1 is a block diagram illustrating the configuration of a display device (100) according to one embodiment of the present disclosure.

[0026] Referring to FIG. 1, the display device (100) may include a broadcast receiving unit (130), an external device interface unit (135), a storage unit (140), a user input interface unit (150), a control unit (170), a wireless communication unit (173), a voice acquisition unit (175), a display unit (180), an audio output unit (185), and a power supply unit (190).

[0027] The broadcast receiving unit (130) may include a tuner (131), a demodulation unit (132), and a network interface unit (133).

[0028] The tuner (131) can select a specific broadcast channel according to a channel selection command. The tuner (131) can receive a broadcast signal for the selected specific broadcast channel.

[0029] The demodulator (132) can separate the received broadcast signal into a video signal, an audio signal, and a data signal related to the broadcast program, and can restore the separated video signal, audio signal, and data signal into a form that can be output.

[0030] The network interface unit (133) may provide an interface for connecting the display device (100) to a wired / wireless network including the Internet. The network interface unit (133) may transmit or receive data to or from other users or other electronic devices via the connected network or another network linked to the connected network.

[0031] The network interface unit (133) can access a predetermined web page through a connected network or another network linked to the connected network. In other words, it can access a predetermined web page through a network and transmit or receive data with the corresponding server.

[0032] In addition, the network interface unit (133) can receive content or data provided by a content provider or network operator. That is, the network interface unit (133) can receive content such as movies, advertisements, games, VOD (Video on Demand), broadcast signals, etc., and information related thereto provided from a content provider or network provider via a network.

[0033] Additionally, the network interface unit (133) can receive firmware update information and update files provided by the network operator, and transmit data to the Internet or content provider or network operator.

[0034] The network interface unit (133) can select and receive a desired application from among applications open to the public via a network.

[0035] The external device interface unit (135) can receive an application or a list of applications in an adjacent external device and transmit it to the control unit (170) or storage unit (140).

[0036] The external device interface unit (135) can provide a connection path between the display device (100) and the external device. The external device interface unit (135) can receive one or more of images and audio output from an external device connected wirelessly or wiredly to the display device (100) and transmit them to the control unit (170). The external device interface unit (135) can include a plurality of external input terminals. The plurality of external input terminals can include an RGB terminal, one or more HDMI (High Definition Multimedia Interface) terminals, and a component terminal.

[0037] The voice signal of an external device input through the external device interface unit (135) can be output through the display unit (180). The voice signal of an external device input through the external device interface unit (135) can be output through the audio output unit (185).

[0038] An external device that can be connected to the external device interface unit (135) may be any one of a set-top box, a Blu-ray player, a DVD player, a game console, a sound bar, a smartphone, a PC, a USB memory, and a home theater, but this is only an example.

[0039] Additionally, some content data stored in the display device (100) can be transmitted to a selected user or electronic device among other users or other electronic devices pre-registered in the display device (100).

[0040] The storage unit (140) stores programs for each signal processing and control within the control unit (170), and can store signal-processed images, voices, or data signals.

[0041] In addition, the storage unit (140) may perform a function for temporary storage of video, audio, or data signals input from an external device interface unit (135) or a network interface unit (133), and may also store information about a specific image through a channel memory function.

[0042] The storage unit (140) can store an application or a list of applications input from the external device interface unit (135) or the network interface unit (133).

[0043] The display device (100) can play content files (video files, still image files, music files, document files, application files, etc.) stored in the storage unit (140) and provide them to the user.

[0044] The user input interface unit (150) can transmit a signal input by a user to the control unit (170), or transmit a signal from the control unit (170) to the user. For example, the user input interface unit (150) can receive and process control signals such as power on / off, channel selection, and screen setting from the remote control device (200) according to various communication methods such as Bluetooth, Ultra Wideband (UWB), ZigBee, Radio Frequency (RF) communication, or infrared (IR) communication, or process the control signals from the control unit (170) to be transmitted to the remote control device (200).

[0045] In addition, the user input interface unit (150) can transmit control signals input from local keys (not shown) such as a power key, channel key, volume key, and setting value to the control unit (170).

[0046] An image signal processed by the control unit (170) can be input to the display unit (180) and displayed as an image corresponding to the image signal. In addition, an image signal processed by the control unit (170) can be input to an external output device through the external device interface unit (135).

[0047] The voice signal processed in the control unit (170) can be output as audio to the audio output unit (185). In addition, the voice signal processed in the control unit (170) can be input to an external output device through the external device interface unit (135).

[0048] In addition, the control unit (170) can control the overall operation within the display device (100).

[0049] In addition, the control unit (170) can control the display device (100) by a user command or internal program input through the user input interface unit (150), and can connect to a network to enable the user to download a desired application or application list into the display device (100).

[0050] The control unit (170) enables the channel information selected by the user to be output through the display unit (180) or audio output unit (185) together with the processed video or audio signal.

[0051] In addition, the control unit (170) allows a video signal or audio signal from an external device, for example, a camera or camcorder, input through the external device interface unit (135) to be output through the display unit (180) or audio output unit (185) in accordance with an external device video playback command received through the user input interface unit (150).

[0052] Meanwhile, the control unit (170) can control the display unit (180) to display an image, and for example, can control the display unit (180) to display a broadcast image input through the tuner (131), an external input image input through the external device interface unit (135), an image input through the network interface unit, or an image stored in the storage unit (140). In this case, the image displayed on the display unit (180) can be a still image or a moving image, and can be a 2D image or a 3D image.

[0053] In addition, the control unit (170) can control the playback of content stored in the display device (100), received broadcast content, or external input content input from outside, and the content can be in various forms such as broadcast video, external input video, audio file, still image, connected web screen, and document file.

[0054] The wireless communication unit (173) can communicate with an external device through wired or wireless communication. The wireless communication unit (173) can perform short-range communication with the external device. To this end, the wireless communication unit (173) can support short-range communication using at least one of Bluetooth™, BLE (Bluetooth Low Energy), RFID (Radio Frequency Identification), Infrared Data Association (IrDA), UWB (Ultra Wideband), ZigBee, NFC (Near Field Communication), Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, and Wireless USB (Wireless Universal Serial Bus) technologies. This wireless communication unit (173) can support wireless communication between the display device (100) and a wireless communication system, between the display device (100) and another display device (100), or between the display device (100) and a network where the display device (100, or an external server) is located via a short-range wireless communication network (Wireless Area Network). The short-range wireless communication network may be a short-range wireless personal area network (Wireless Personal Area Network).

[0055] Here, the other display device (100) may be a wearable device (e.g., a smart watch, smart glasses, a head mounted display (HMD), a mobile terminal such as a smart phone) that can exchange data with the display device (100) according to the present disclosure (or can be linked). The wireless communication unit (173) may detect (or recognize) a wearable device capable of communication around the display device (100). Furthermore, if the detected wearable device is an authenticated device to communicate with the display device (100) according to the present disclosure, the control unit (170) may transmit at least a part of the data processed in the display device (100) to the wearable device through the wireless communication unit (173). Accordingly, a user of the wearable device may use the data processed in the display device (100) through the wearable device.

[0056] The voice acquisition unit (175) can acquire audio. The voice acquisition unit (175) can include at least one microphone (not shown) and can acquire audio around the display device (100) through the microphone (not shown).

[0057] The display unit (180) can generate a driving signal by converting a video signal, data signal, OSD signal processed by the control unit (170) or a video signal, data signal, etc. received from the external device interface unit (135) into R, G, B signals, respectively.

[0058] Meanwhile, since the display device (100) illustrated in FIG. 1 is merely an example of the present disclosure, some of the illustrated components may be integrated, added, or omitted depending on the specifications of the display device (100) actually implemented.

[0059] That is, two or more components may be combined into a single component, or a single component may be subdivided into two or more components, as needed. Furthermore, the functions performed by each block are intended to illustrate embodiments of the present disclosure, and their specific operations or devices do not limit the scope of the present disclosure.

[0060] According to another embodiment of the present disclosure, the display device (100) may receive and play back an image through a network interface unit (133) or an external device interface unit (135) without having a tuner (131) and a demodulator (132), unlike as shown in FIG. 1.

[0061] For example, the display device (100) may be implemented separately as an image processing device, such as a set-top box, for receiving broadcast signals or contents according to various network services, and a content playback device for playing contents input from the image processing device.

[0062] In this case, the method of operating the display device according to the embodiment of the present disclosure to be described below may be performed by any one of the display device (100) described with reference to FIG. 1, as well as an image processing device such as a separate set-top box, or a content playback device having a display unit (180) and an audio output unit (185).

[0063] The audio output unit (185) receives a signal processed by the control unit (170) and outputs it as voice.

[0064] The power supply unit (190) supplies power to the entire display device (100). In particular, it can supply power to a control unit (170) that can be implemented in the form of a system on chip (SOC), a display unit (180) for displaying images, and an audio output unit (185) for outputting audio.

[0065] Specifically, the power supply unit (190) may be equipped with a converter that converts AC power into DC power and a dc / dc converter that converts the level of the DC power.

[0066] Next, a remote control device according to an embodiment of the present disclosure will be described with reference to FIGS. 2 and 3.

[0067] FIG. 2 is a block diagram of a remote control device according to an embodiment of the present disclosure, and FIG. 3 shows an example of an actual configuration of a remote control device according to an embodiment of the present disclosure.

[0068] First, referring to FIG. 2, the remote control device (200) may include a fingerprint recognition unit (210), a wireless communication unit (220), a user input unit (230), a sensor unit (240), an output unit (250), a power supply unit (260), a storage unit (270), a control unit (280), and a voice acquisition unit (290).

[0069] Referring to FIG. 2, the wireless communication unit (220) transmits and receives signals with any one of the display devices according to the embodiments of the present disclosure described above.

[0070] The remote control device (200) may be equipped with an RF module (221) capable of transmitting and receiving signals with the display device (100) according to RF communication standards, and may be equipped with an IR module (223) capable of transmitting and receiving signals with the display device (100) according to IR communication standards. In addition, the remote control device (200) may be equipped with a Bluetooth module (225) capable of transmitting and receiving signals with the display device (100) according to Bluetooth communication standards. In addition, the remote control device (200) may be equipped with an NFC module (227) capable of transmitting and receiving signals with the display device (100) according to NFC (Near Field Communication) communication standards, and may be equipped with a WLAN module (229) capable of transmitting and receiving signals with the display device (100) according to WLAN (Wireless LAN) communication standards.

[0071] Additionally, the remote control device (200) transmits a signal containing information about the movement of the remote control device (200) to the display device (100) through the wireless communication unit (220).

[0072] Meanwhile, the remote control device (200) can receive a signal transmitted by the display device (100) through the RF module (221), and, if necessary, can transmit commands for turning the power on / off, changing the channel, changing the volume, etc. to the display device (100) through the IR module (223).

[0073] The user input unit (230) may be configured as a keypad, buttons, a touch pad, or a touch screen. The user can input commands related to the display device (100) to the remote control device (200) by operating the user input unit (230). If the user input unit (230) is equipped with a hard key button, the user can input commands related to the display device (100) to the remote control device (200) by pushing the hard key button. This will be described with reference to FIG. 3.

[0074] Referring to FIG. 3, the remote control device (200) may include a plurality of buttons. The plurality of buttons may include a fingerprint recognition button (212), a power button (231), a home button (232), a live button (233), an external input button (234), a volume control button (235), a voice recognition button (236), a channel change button (237), a confirmation button (238), and a back button (239).

[0075] The fingerprint recognition button (212) may be a button for recognizing a user's fingerprint. In one embodiment, the fingerprint recognition button (212) may be capable of a push operation, and thus may receive a push operation and a fingerprint recognition operation. The power button (231) may be a button for turning the display device (100) on / off. The home button (232) may be a button for moving to the home screen of the display device (100). The live button (233) may be a button for displaying a real-time broadcast program. The external input button (234) may be a button for receiving an external input connected to the display device (100). The volume control button (235) may be a button for adjusting the volume output by the display device (100). The voice recognition button (236) may be a button for receiving a user's voice and recognizing the received voice. The channel change button (237) may be a button for receiving a broadcast signal of a specific broadcast channel. The confirmation button (238) may be a button for selecting a specific function, and the back button (239) may be a button for returning to the previous screen.

[0076] Let's explain Figure 2 again.

[0077] When the user input unit (230) is equipped with a touch screen, the user can input commands related to the display device (100) using the remote control device (200) by touching the soft keys of the touch screen. In addition, the user input unit (230) may be equipped with various types of input devices that can be operated by the user, such as a scroll key or a jog key, and the present embodiment does not limit the scope of the present disclosure.

[0078] The sensor unit (240) may be equipped with a gyro sensor (241) or an acceleration sensor (243), and the gyro sensor (241) may sense information about the movement of the remote control device (200).

[0079] For example, the gyro sensor (241) can sense information about the operation of the remote control device (200) based on the x, y, and z axes, and the acceleration sensor (243) can sense information about the movement speed of the remote control device (200). Meanwhile, the remote control device (200) can further include a distance measuring sensor, so as to sense the distance to the display unit (180) of the display device (100).

[0080] The output unit (250) can output a video or audio signal corresponding to the operation of the user input unit (230) or to a signal transmitted from the display device (100). Through the output unit (250), the user can recognize whether the user input unit (230) is being operated or whether the display device (100) is being controlled.

[0081] For example, the output unit (250) may be equipped with an LED module (251) that lights up when the user input unit (230) is operated or a signal is transmitted and received with the display device (100) through the wireless communication unit (220), a vibration module (253) that generates vibration, a sound output module (255) that outputs sound, or a display module (257) that outputs an image.

[0082] In addition, the power supply unit (260) supplies power to the remote control device (200), and can reduce power waste by stopping the power supply when the remote control device (200) is not moved for a predetermined period of time. The power supply unit (260) can resume the power supply when a predetermined key provided in the remote control device (200) is operated.

[0083] The storage unit (270) can store various types of programs, application data, etc. required for the control or operation of the remote control device (200). If the remote control device (200) wirelessly transmits and receives signals through the display device (100) and the RF module (221), the remote control device (200) and the display device (100) transmit and receive signals through a predetermined frequency band.

[0084] The control unit (280) of the remote control device (200) can store and reference information regarding the frequency band, etc., that can wirelessly transmit and receive signals with the display device (100) paired with the remote control device (200), in the storage unit (270).

[0085] The control unit (280) controls all matters related to the control of the remote control device (200). The control unit (280) can transmit a signal corresponding to a predetermined key operation of the user input unit (230) or a signal corresponding to the movement of the remote control device (200) sensed by the sensor unit (240) to the display device (100) via the wireless communication unit (220).

[0086] Additionally, the voice acquisition unit (290) of the remote control device (200) can acquire voice.

[0087] The voice acquisition unit (290) may include at least one microphone (291) and may acquire voice through the microphone (291).

[0088] Next, Figure 4 is described.

[0089] FIG. 4 shows an example of utilizing a remote control device according to an embodiment of the present disclosure.

[0090] Figure 4 (a) illustrates that a pointer (205) corresponding to a remote control device (200) is displayed on a display unit (180).

[0091] The user can move or rotate the remote control device (200) up and down, left and right. The pointer (205) displayed on the display unit (180) of the display device (100) corresponds to the movement of the remote control device (200). As shown in the drawing, the pointer (205) moves and is displayed according to the movement in 3D space, so the remote control device (200) can be called a space remote control.

[0092] Figure 4 (b) illustrates that when a user moves the remote control device (200) to the left, the pointer (205) displayed on the display unit (180) of the display device (100) also moves to the left in response.

[0093] Information about the movement of the remote control device (200) detected by the sensor of the remote control device (200) is transmitted to the display device (100). The display device (100) can calculate the coordinates of the pointer (205) from the information about the movement of the remote control device (200). The display device (100) can display the pointer (205) to correspond to the calculated coordinates.

[0094] Figure 4 (c) illustrates a case where a user moves the remote control device (200) away from the display unit (180) while pressing a specific button within the remote control device (200). As a result, a selection area within the display unit (180) corresponding to the pointer (205) can be zoomed in and displayed in an enlarged manner.

[0095] Conversely, when the user moves the remote control device (200) closer to the display unit (180), the selection area within the display unit (180) corresponding to the pointer (205) may be zoomed out and displayed in a reduced size.

[0096] Meanwhile, when the remote control device (200) moves away from the display unit (180), the selection area may be zoomed out, and when the remote control device (200) moves closer to the display unit (180), the selection area may be zoomed in.

[0097] In addition, when a specific button within the remote control device (200) is pressed, recognition of up, down, left, and right movements may be excluded. That is, when the remote control device (200) moves away from or toward the display unit (180), up, down, left, and right movements may not be recognized, and only forward and backward movements may be recognized. When a specific button within the remote control device (200) is not pressed, only the pointer (205) moves in accordance with the up, down, left, and right movements of the remote control device (200).

[0098] Meanwhile, the movement speed or movement direction of the pointer (205) can correspond to the movement speed or movement direction of the remote control device (200).

[0099] Meanwhile, the pointer in this specification refers to an object displayed on the display unit (180) in response to the operation of the remote control device (200). Therefore, objects of various shapes other than the arrow shape illustrated in the drawing can be used as the pointer (205). For example, the pointer may be a concept including a point, a cursor, a prompt, a thick outline, etc. In addition, the pointer (205) may be displayed corresponding to one point on the horizontal or vertical axis on the display unit (180), or may be displayed corresponding to multiple points such as lines or surfaces.

[0100] FIG. 5 (a) and FIG. 5 (b) are drawings for explaining the horizontal mode and vertical mode of a stand-type display device according to an embodiment of the present disclosure.

[0101] Referring to (a) and (b) of FIG. 5, a stand-type display device (100) is illustrated.

[0102] A shaft (103) and a stand base (105) can be connected to the display device (100).

[0103] The shaft (103) can connect the display device (100) and the stand base (105). The shaft (103) can extend vertically.

[0104] The lower end of the shaft (103) can be connected to the edge of the stand base (105).

[0105] The lower end of the shaft (103) can be rotatably connected to the periphery of the stand base (105).

[0106] The display device (100) and shaft (103) can rotate around a vertical axis with respect to the stand base (105).

[0107] The upper part of the shaft (103) can be connected to the rear of the display device (100).

[0108] The stand base (105) can serve to support the display device (100).

[0109] The display device (100) may be configured to include a shaft (103) and a stand base (105).

[0110] The display device (100) can rotate around the point where the upper part of the shaft (103) and the rear part of the display (180) meet.

[0111] Figure 5 (a) shows that the display (180) operates in a landscape mode in which the horizontal length is greater than the vertical length, and Figure 5 (b) shows that the display (180) operates in a landscape mode in which the vertical length is greater than the horizontal length.

[0112] The user can move the stand-type display device (100). That is, unlike a fixed device, the stand-type display device (100) has improved mobility, so the user is not restricted by the placement location.

[0113] Hereinafter, a system, device and method are disclosed for connecting to only one source device among multiple source devices belonging to the same network and excluding the connection of the remaining source device(s) without adding a separate hardware device such as a server such as a discovery broker in a sink device.

[0114] Meanwhile, in the past, in order to connect to a sink device, the source device could not operate on its own, and for limited exploration such as connecting to the desired sink device, the intervention of the source device user was essential, and a specific application had to be run in advance before interconnection, or NFC (Near Field Communication) or QR code tagging was required.

[0115] However, in the conventional method, unnecessary devices were searched during the connection process between the source device and the sink device in a public environment, causing difficulty or inconvenience in connecting to the desired device.

[0116] Additionally, in the conventional method, information from the source device must be transmitted externally, such as to a server, which raises security concerns along with the problem of increased traffic.

[0117] Accordingly, according to at least one of the various embodiments of the present disclosure, a desired source device and a sink device can be connected to each other without adding a separate hardware device such as a server, and because a separate server or the like is not used, the network load due to the resulting traffic can be reduced, security issues such as personal information can be minimized, and since a separate authentication procedure by the user is not required, the sink device can be easily connected, thereby improving the convenience of use.

[0118] Additionally, the present disclosure is applicable to digital systems including IoT and sensor networks.

[0119] FIG. 6 is a drawing illustrating a display system (1) according to one embodiment of the present disclosure.

[0120] A display system (1) according to at least one of the various embodiments of the present disclosure may be configured to include at least one source device (610) and two or more sink devices (101 to 10n, where n is a natural number). In this case, the display system (1) may further include a router (650) to enable smooth communication between the plurality of sink devices. The router (650) may be a wired or wireless router.

[0121] The display system (1) according to the present disclosure may be a system installed in a specific space, such as a hotel, for example. However, it is not limited thereto.

[0122] As an example, all sink devices (101 to 10n) constituting the display system (1) belong to the same network.

[0123] Likewise, all source devices may also belong to the same network as the sink devices (101 to 10n). For convenience of explanation, only one source device, i.e., the first source device (610), is illustrated in FIG. 6.

[0124] At this time, at least one of the sink devices (101 to 10n) and at least one source device (610) can search for a peripheral device that can connect to the same network through one of SSID, mDNS, etc.

[0125] In this specification, each sink device (101 to 10n) is exemplified by a display device (100), but is not necessarily limited thereto. For example, some of the sink devices may be any one of a signage, a PC, a laptop, a tablet PC, a wearable device, etc.

[0126] One source device and one sink device can communicate according to a first communication protocol before an event occurs, and can communicate according to a second communication protocol after the event occurs.

[0127] Here, the first communication protocol may include a wired or wireless communication protocol. For example, if the first communication protocol is a wireless communication protocol, it may include Wi-Fi.

[0128] As mentioned above, the second communication protocol may also include a wired or wireless communication protocol. For example, if the second communication protocol is a wireless communication protocol, it may include BLE (Bluetooth Low Energy).

[0129] The sink device (100) can search for surrounding source device(s) belonging to the same network.

[0130] The sink device (100) can receive first information from a first source device (610) among the source devices being searched.

[0131] The sink device (100) can identify the first source device (610) that transmitted the first information.

[0132] Here, the first information may be, for example, information about the execution of a specific application within the first source device (610). As described above, the specific application may include, but is not limited to, predefined applications such as Airplay or Miracast. Accordingly, the specific application may be arbitrarily added, deleted, or otherwise modified.

[0133] Depending on the embodiment, the first information may be, for example, NFC (Near Field Communication) or QR code tagging information.

[0134] The sink device (100) can receive second information from the first source device (610) that transmitted the first information.

[0135] When the sink device (100) receives second information from the first source device (610), it can register the first source device (610) in the white list.

[0136] In the above, the second information may include, for example, information about a sink device selected from a sink device list included in a user interface provided to the first source device (610). That is, the second information may indicate, for example, information about selecting a first sink device (101) from the provided sink device list.

[0137] Below, the operation of each device in the display system (1) according to the present disclosure will be described in more detail.

[0138] FIG. 7 is a diagram illustrating a configuration for connection operation of a source device (610) and a sink device (101) according to embodiments of the present disclosure.

[0139] In Fig. 7, only the configuration required for connection between devices is briefly illustrated in relation to the present disclosure.

[0140] Figure 7 (a) illustrates a sink device (101). The sink device (101) may include a first communication interface unit (710), a second communication interface unit (720), a memory (140), etc.

[0141] Meanwhile, Fig. 7 (b) illustrates a source device (610). The source device (610) may include a first communication interface unit (750), a second communication interface unit (760), a memory (770), etc.

[0142] FIG. 8 illustrates a connection operation between a sink device (100) and a source device (610) according to one embodiment of the present disclosure.

[0143] The present disclosure relates to discovery of identical devices on a network, but with the purpose of limited connectivity.

[0144] According to the present disclosure, a device can be explored in a limited manner, for example, by using short-range communication means to present connection information to a user.

[0145] And according to the present disclosure, the sink device (100) can configure a white list in response to a connection request from the source device (610).

[0146] Meanwhile, a white list configured in one such sink device (101) can act as a black list in other sink devices.

[0147] Therefore, according to the present disclosure, only one sink device (101) and one source device (610) can be connected, and connection with other devices can be automatically limited.

[0148] Meanwhile, it can be utilized for connections between various devices as well as display devices and mobile terminals, and in the process, even if the search is based on a network search protocol (e.g., SSDP, mDNS, etc.), additional information can be utilized to provide the user with an accurate connection list.

[0149] Referring to FIGS. 7 and 8, the operating method of the display device can search for surrounding source devices, and when first information is obtained from a first source device (610) among the searched source devices, identify the first source device (610), and when second information is received from the first source device (610), register the first source device (610) in the first list.

[0150] As described above, the sink devices (101 to 10n) and at least one source device (610) may be connected to the same network.

[0151] Meanwhile, the sink device (101) can be connected through the first interface unit (710), and the source device (610) can be connected through the first interface unit (750).

[0152] Both the first interface unit (710) and the first interface unit (750) may be in the listen mode (On) state.

[0153] The first interface unit (710) and the first interface unit (750) can recognize each other using the Simple Service Discovery Protocol (SSDP) or the Multicast Domain Name Service (mDNS) protocol, respectively. At this time, the list of recognized devices can be stored in, for example, the memory (140) and the memory (770). At this time, the memory (140) can store a list of source devices and a list of sink devices. In addition, the memory (750) can store a list of sink devices.

[0154] The user can launch an app (e.g., Airplay, Youtube DIAL (Discovery & Launch), etc.) to be transmitted from the source device (610) to the sink device (101) (S101).

[0155] At this time, the second communication interface unit (760) of the source device (610) can broadcast a BLE beacon (S103). In the above, the BLE beacon may include, for example, a device name, a device MAC address, etc., but is not limited thereto.

[0156] The second communication interface unit (720) of the sink device (101) can receive a beacon signal transmitted from the second communication interface unit (760) of the source device (610), and can recognize that the source device (610) is present in a close range based on the beacon signal.

[0157] At this time, the second communication interface unit (720) of the sink device (101) may also broadcast a beacon signal (S105). The beacon signal may include, for example, a device name, a device MAC address, etc., but is not limited thereto.

[0158] The source device (610) can receive the beacon signal of the sink device (101) through the second communication interface unit (760). Accordingly, the source device (610) can recognize that the sink device (101) is present in close proximity. If the sink device (101) that transmitted the beacon is included in the sink device list stored in the memory (770), the source device (610) can display the corresponding sink device (101) in the list of sink devices to be cast or mirrored in the App (S107).

[0159] You can select the sink device (101) you want to cast or mirror from the app of the source device (610) and request a connection (S109).

[0160] The sink device (101) can accept a request from the source device (610) based on the list of source devices stored in the memory (140) and the information received from the beacon broadcast from the second communication interface unit (760) (S111). Through this, the source device (610) and the sink device (101) can be connected to each other (S113).

[0161] The sink device (101) can switch to white list mode after connection. The sink device (101) can switch the listen mode to Off. Therefore, the sink device (10) may not be discovered on the network.

[0162] White list information (e.g., connected source device information - mac address, ip, device name, etc.) can be stored in memory (140).

[0163] The sink device (101) may transmit white list information to the sink device list stored in the memory (140) to request other sink devices (102 to 10n) in black list mode, i.e., sink devices in black list mode, not to accept requests from the source device (610). At this time, the black list mode state may indicate, for example, a state in which the source device (610) is not yet connected and thus the listen mode is still on.

[0164] That is, in Fig. 6, all other sync devices (102 to 10n) are in black list mode and manage the white list information (A0) transmitted from 10 as a black list to reject any request from Mobile (A0).

[0165] Afterwards, when other sink devices (102 to 10n) in black list mode are connected to the source device (610) and switched to white list mode, the mobile information in this white list can also be shared with other sink devices (102 to 10n) in the local network and managed as a black list.

[0166] That is, when mobile B0 is connected to the sink device (101), the black list includes existing A0 and B0 and can be shared with other sink devices (102 to 10n) in the black list mode of the local network.

[0167] If an additional mobile (A1) connection is required to the sync device (101) in white list mode, select Disable White List Mode in the corresponding App menu of the TV (10).

[0168] At this time, the sink device (101) may be temporarily released from the white list mode and the listen mode of 101 may also be switched to On. Afterwards, A1 repeats the above process to connect to the sink device (101). At that time, the sink device (101) is switched back to the white list mode and the list (A0 and A1) may be transmitted to other sink devices (102 to 10n) in the list stored in 101.

[0169] And in cases where multiple sync devices exist in the same room, such as a suite, and have a policy to allow the same mobile access, when one sync device is switched to white list mode, the remaining sync devices can also be switched to white list mode with the same list.

[0170] That is, when the first sink device (101) and the second sink device (102) are located in the same room, the two sink devices are managed as the same display group, and as described above, when the source device (610) is stored in the sink device (101), the first sink device (101) and the second sink device (102) can be switched to a white list mode to allow only the source devices (610) in the same white list.

[0171] FIG. 9 is a drawing showing an example of a user interface provided by a sink device (100) according to one embodiment of the present disclosure.

[0172] The sink device (101) can provide a user interface such as (a) to (c) of FIG. 9 depending on the connection status with the source device (610).

[0173] In (a) of Fig. 9, a message “The source device has been registered in the white list” can be provided on the screen of the sink device (101).

[0174] In (b) of Fig. 9, a message such as “Do you want to edit the white list? 1. Add, 2. Remove, etc.” can be provided on the screen of the sink device (101).

[0175] In (c) of Fig. 9, a message “Connection from another source device was rejected” may also be provided on the screen of the sink device (101).

[0176] Even if not specifically mentioned, the order of at least some of the operations disclosed in the present disclosure may be performed simultaneously, in a different order than the order described above, or some may be omitted / added.

[0177] According to one embodiment of the present disclosure, the above-described method can be implemented as processor-readable code on a medium in which a program is recorded. Examples of processor-readable media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, and optical data storage devices.

[0178] The display device described above is not limited to the configuration and method of the embodiments described above, and the embodiments may be configured by selectively combining all or part of each embodiment so that various modifications can be made.

[0179] The present disclosure relates to a connection operation between a source device and a sink device, and is applicable to various digital industrial fields, and thus has industrial applicability.

Claims

1. Memory; and A processor that searches for surrounding source devices, stores a list of sink devices and a list of source devices, transmits a second signal to a network when a first signal is received from a first source device among the searched source devices, and registers the first source device in the first list when a third signal is received from the first source device and the first source device is included in the list of stored source devices. Display device.

2. In claim 1, A display device in which the processor registers all source devices except the first source device among the searched source devices in a second list.

3. In claim 2, The above processor is a display device that turns on the listen-on mode to search for the surrounding source device.

4. In claim 3, A display device, wherein the processor controls turning off the listen on mode when the first source device is registered in the first list.

5. In claim 1, The above peripheral source device is a display device that belongs to the same network.

6. In claim 5, The above peripheral source device is a display device that is discovered via SSDI or mDNS.

7. In claim 6, The above peripheral source device is a display device that searches via BLE.

8. In claim 1, A display device, wherein the first signal includes device name and MAC address information of the first source device.

9. In claim 1, The first source device is a display device that transmits the first signal after executing an application.

10. In claim 1, A display device, wherein the third signal includes information for selecting the display device as a sink device.

11. In claim 1, A display device further comprising a display that outputs a user interface including a first list in which the first source device is registered.

12. In claim 11, A display device, wherein the processor controls the display to provide a function item for editing the first list when a first list editing item provided on the user interface output to the display is selected.

13. In claim 12, A display device in which the processor, when a request is made to add a new source device through a function item for editing the first list, allows the addition only when there is approval from the first source device or when a first source device already registered in the first list is searched.

14. Step to search for surrounding source devices; Step of saving the sink device list and the source device list; A step of receiving a first signal from a first source device among the searched source devices; A step of transmitting a second signal to the network; receiving a third signal from the first source device; and A method of operating a display device, comprising a step of registering the first source device as a list if the first source device is included in the list of stored source devices.

15. Multiple source devices; and A sink device including a processor that searches for surrounding source devices, stores a sink device list and a source device list, transmits a second signal to a network when a first signal is received from a first source device among the searched source devices, and registers the first source device in the first list when a third signal is received from the first source device, if the first source device is included in the stored source device list. Display system.

Images