WO2024080389A1 - Dispositif et système d'affichage - Google Patents

Dispositif et système d'affichage Download PDF

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Publication number
WO2024080389A1
WO2024080389A1 PCT/KR2022/015267 KR2022015267W WO2024080389A1 WO 2024080389 A1 WO2024080389 A1 WO 2024080389A1 KR 2022015267 W KR2022015267 W KR 2022015267W WO 2024080389 A1 WO2024080389 A1 WO 2024080389A1
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WO
WIPO (PCT)
Prior art keywords
display device
external device
controller
display
external
Prior art date
Application number
PCT/KR2022/015267
Other languages
English (en)
Korean (ko)
Inventor
김태영
이은정
한동희
장윤석
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to PCT/KR2022/015267 priority Critical patent/WO2024080389A1/fr
Publication of WO2024080389A1 publication Critical patent/WO2024080389A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/485—End-user interface for client configuration

Definitions

  • the present disclosure relates to a display device and a display system for controlling an external device connected to a display device using another display device.
  • Digital TV services using wired or wireless communication networks are becoming popular. Digital TV services can provide a variety of services that cannot be provided by existing analog broadcasting services.
  • IPTV Internet Protocol Television
  • smart TV services which are types of digital TV services, provide interactivity that allows users to actively select the type of program to watch and the viewing time.
  • IPTV and smart TV services can provide various additional services, such as Internet search, home shopping, and online games, based on this interactivity.
  • the display device can be connected to a variety of external devices, including set-top boxes, Blu-ray players, DVD players, game consoles, sound bars, smartphones, PCs, USB memory, and home theaters. Additionally, a display device can be connected to another display device and provide a mirroring function to the other display device. Accordingly, the display device can receive video signals and audio signals from an external device, and allow the video and audio provided by the external device to be output from another display device.
  • a display device may be located in the user's living room, and another display device may be located in the user's room.
  • an external device connected to the display device may be located around the display device. That is, the external device may be located in the user's living room. In this way, when other display devices and external devices are physically separated, it may be difficult to control the external devices while watching images in the space where the other display devices are located.
  • the present disclosure is intended to enable another display device that is not directly connected to an external device to control the external device without restrictions.
  • a first display device includes an external device interface for connecting to at least one external device, a wireless communication interface for connecting to at least one second display device, and a key for controlling the external device on the second display device. It may include a controller that transmits information.
  • the first display device transmits a signal including whether key information can be transmitted to the second display device when connected to the other while being connected to either an external device or a second display device. can do.
  • the first display device When the first display device according to an embodiment of the present invention receives a signal requesting key information from the second display device, it can transmit key information to the second display device.
  • the first display device receives key data selected in the second display device from the second display device, generates a control signal for controlling the external device based on the selected key data, and transmits it to the external device. can do.
  • the first display device can generate a control signal using any one of CEC, wireless network, and IR and transmit it to an external device.
  • the first display device generates a CEC signal in the external device when the external device is connected to the first display device by wire and the external device is an external device that can be controlled using the CEC method. It can be sent to .
  • the first display device generates an IR signal and transmits it to the external device when an external device is connected by wire to the first display device and the external device is not controllable using the CEC method. can do.
  • the first display device can generate a network signal and transmit it to the external device when the first display device and an external device are wirelessly connected and the external device is an external device that can be controlled by a network method. .
  • the first display device generates an IR signal and transmits it to the external device when the first display device and an external device are wirelessly connected and the external device is not controllable through a network. You can.
  • a display system includes a first display device and a second display device wirelessly connected to the first display device, where the first display device has an external device interface for connecting to at least one external device and a second display device.
  • a display device may include a first controller that transmits key information for controlling an external device to the display device, and the second display device may include a second controller that displays at least one icon corresponding to the key information received from the first controller. You can.
  • the first display device of the display system includes whether key information can be transmitted to the second display device when connected to the other device while connected to either an external device or the second display device.
  • a signal is transmitted, and the second display device can display a message including whether control of the external device is possible based on the signal including whether the received key information can be transmitted.
  • the second display device of the display system may receive a user input for selecting one of at least one icon, and may transmit key data corresponding to the selected icon to the first display device.
  • the first display device of the display system may generate a control signal for controlling an external device based on key data received from the second display device and transmit it to the external device.
  • the first display device of the display system receives at least a portion of a video signal and an audio signal from an external device controlled based on a control signal, and at least a portion of the video signal and audio signal received from the external device. can be transmitted to the second display device.
  • Figure 1 is a block diagram showing the configuration of a display device according to an embodiment of the present invention.
  • Figure 2 is a block diagram of a remote control device according to an embodiment of the present invention.
  • Figure 3 shows an example of the actual configuration of a remote control device according to an embodiment of the present invention.
  • Figure 4 shows an example of utilizing a remote control device according to an embodiment of the present invention.
  • FIG. 5 is a ladder diagram for explaining a method of operating a display system consisting of an external device, a first display device, and a second display device according to an embodiment of the present disclosure.
  • FIG. 6 is an example illustrating a screen displayed on a second display device of a display system comprised of an external device, a first display device, and a second display device according to an embodiment of the present disclosure.
  • FIG. 7 is a flowchart illustrating an operation in which a first display device of a display system composed of an external device, a first display device, and a second display device generates a signal to control an external device according to an embodiment of the present disclosure.
  • FIG. 8 illustrates a screen displayed on the second display device when the external device connected to the first display device of a display system consisting of an external device, a first display device, and a second display device according to an embodiment of the present disclosure is a set-top box. It is a drawing.
  • FIG. 9 illustrates a screen displayed on the second display device when the external device connected to the first display device of a display system consisting of an external device, a first display device, and a second display device according to an embodiment of the present disclosure is a DVD player. It is a drawing.
  • the display device is, for example, an intelligent display device that adds a computer support function to the broadcast reception function, and is faithful to the broadcast reception function while adding an Internet function, etc., such as a handwriting input device and a touch screen.
  • an Internet function etc.
  • it can be equipped with a more convenient interface such as a spatial remote control.
  • by supporting wired or wireless Internet functions it is possible to connect to the Internet and a computer and perform functions such as email, web browsing, banking, or gaming.
  • a standardized general-purpose OS can be used for these various functions.
  • the display device described in the present invention for example, various applications can be freely added or deleted on a general-purpose OS kernel, so various user-friendly functions can be performed.
  • the display device may be, for example, a network TV, HBBTV, smart TV, LED TV, OLED TV, etc., and in some cases, may also be applied to a smartphone.
  • Figure 1 shows a block diagram of the configuration of a display device according to an embodiment of the present invention.
  • the display device 100 includes a broadcast receiver 130, an external device interface 135, a memory 140, a user input interface 150, a controller 170, a wireless communication interface 173, and a display. It may include (180), a speaker (185), and a power supply circuit (190).
  • the broadcast receiver 130 may include a tuner 131, a demodulator 132, and a network interface 133.
  • the tuner 131 can select a specific broadcast channel according to a channel selection command.
  • the tuner 131 may receive a broadcast signal for a specific selected broadcast channel.
  • 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 to a form that can be output.
  • the external device interface 135 may receive an application or application list within an adjacent external device and transfer it to the controller 170 or memory 140.
  • the external device interface 135 may provide a connection path between the display device 100 and an external device.
  • the external device interface 135 may receive one or more of video and audio output from an external device connected wirelessly or wired to the display device 100 and transmit it to the controller 170.
  • the external device interface 135 may include a plurality of external input terminals.
  • the plurality of external input terminals may include an RGB terminal, one or more High Definition Multimedia Interface (HDMI) terminals, and a component terminal.
  • HDMI High Definition Multimedia Interface
  • An image signal from an external device input through the external device interface 135 may be output through the display 180.
  • a voice signal from an external device input through the external device interface 135 may be output through the speaker 185.
  • An external device that can be connected to the external device interface 135 may be any one of a set-top box, Blu-ray player, DVD player, game console, sound bar, smartphone, PC, USB memory, or home theater, but this is only an example.
  • the network interface 133 may provide an interface for connecting the display device 100 to a wired/wireless network including an Internet network.
  • the network interface 133 may transmit or receive data with other users or other electronic devices through a connected network or another network linked to the connected network.
  • some of the content data stored in the display device 100 may be transmitted to a selected user or selected electronic device among other users or other electronic devices pre-registered in the display device 100.
  • the network interface 133 can access a certain web page through a connected network or another network linked to the connected network. In other words, you can access a certain web page through a network and transmit or receive data with the corresponding server.
  • the network interface 133 can receive content or data provided by a content provider or network operator. That is, the network interface 133 can receive content and information related thereto, such as movies, advertisements, games, VODs, and broadcast signals, provided from a content provider or network provider through a network.
  • the network interface 133 can receive firmware update information and update files provided by a network operator, and can transmit data to the Internet, a content provider, or a network operator.
  • the network interface 133 can select and receive a desired application from among applications that are open to the public through a network.
  • the memory 140 stores programs for processing and controlling each signal in the controller 170, and can store signal-processed video, voice, or data signals.
  • the memory 140 may perform a function for temporary storage of video, voice, or data signals input from the external device interface 135 or the network interface 133, and may store information about a predetermined image through a channel memory function. You can also store information.
  • the memory 140 may store an application or application list input from the external device interface 135 or the network interface 133.
  • the display device 100 can play content files (video files, still image files, music files, document files, application files, etc.) stored in the memory 140 and provide them to the user.
  • content files video files, still image files, music files, document files, application files, etc.
  • the user input interface 150 may transmit a signal input by the user to the controller 170 or transmit a signal from the controller 170 to the user.
  • the user input interface 150 can be used remotely according to various communication methods such as Bluetooth, Ultra Wideband (WB), ZigBee, Radio Frequency (RF) communication, or infrared (IR) communication.
  • Control signals such as power on/off, channel selection, and screen settings can be received and processed from the control device 200, or control signals from the controller 170 can be processed to be transmitted to the remote control device 200.
  • the user input interface 150 can transmit control signals input from local keys (not shown) such as power key, channel key, volume key, and setting value to the controller 170.
  • local keys such as power key, channel key, volume key, and setting value
  • the video signal processed by the controller 170 may be input to the display 180 and displayed as an image corresponding to the video signal. Additionally, the image signal processed by the controller 170 may be input to an external output device through the external device interface 135.
  • the voice signal processed by the controller 170 may be output as audio to the speaker 185. Additionally, the voice signal processed by the controller 170 may be input to an external output device through the external device interface 135.
  • controller 170 may control overall operations within the display device 100.
  • controller 170 can control the display device 100 by a user command or internal program input through the user input interface 150, and connects to the network to display the application or application list desired by the user on the display device ( 100) You can make it available for download within.
  • the controller 170 allows channel information selected by the user to be output through the display 180 or speaker 185 along with the processed video or audio signal.
  • the controller 170 controls the video signal from an external device, for example, a camera or camcorder, input through the external device interface 135 according to an external device video playback command received through the user input interface 150.
  • the voice signal can be output through the display 180 or speaker 185.
  • the controller 170 can control the display 180 to display an image, for example, a broadcast image input through the tuner 131, an external input image input through the external device interface 135, Alternatively, an image input through the network interface unit or an image stored in the memory 140 may be controlled to be displayed on the display 180.
  • the image displayed on the display 180 may be a still image or a moving image, and may be a 2D image or a 3D image.
  • controller 170 can control the playback of content stored in the display device 100, received broadcast content, or external input content, which may include broadcast video, external input video, or audio files. , can be in various forms such as still images, connected web screens, and document files.
  • the wireless communication interface 173 can communicate with external devices through wired or wireless communication.
  • the wireless communication interface 173 can perform short range communication with an external device.
  • the wireless communication interface 173 includes BluetoothTM, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, Near Field Communication (NFC), and Wi-Fi.
  • Short-distance communication can be supported using at least one of Fi (Wireless-Fidelity), Wi-Fi Direct, and Wireless USB (Wireless Universal Serial Bus) technologies.
  • This wireless communication interface 173 is 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 through wireless area networks. It can support wireless communication between the network and the display device 100 (or external server).
  • Local area wireless networks may be wireless personal area networks.
  • the other display device 100 is a wearable device capable of exchanging data with (or interoperating with) the display device 100 according to the present invention, for example, a smartwatch, smart glasses. It can be a mobile terminal such as (smart glass), HMD (head mounted display), or smart phone.
  • the wireless communication interface 173 may detect (or recognize) a wearable device capable of communication around the display device 100 .
  • the controller 170 sends at least part of the data processed by the display device 100 to the wireless communication interface 173. It can be transmitted to a wearable device through . Accordingly, a user of a wearable device can use data processed by the display device 100 through the wearable device.
  • the display 180 converts the video signal, data signal, and OSD signal processed by the controller 170 or the video signal and data signal received from the external device interface 135 into R, G, and B signals, respectively, and provides a driving signal. can be created.
  • the display device 100 shown in FIG. 1 is only one embodiment of the present invention. Some of the illustrated components may be integrated, added, or omitted depending on the specifications of the display device 100 that is actually implemented.
  • two or more components may be combined into one component, or one component may be subdivided into two or more components.
  • the functions performed by each block are for explaining embodiments of the present invention, and the specific operations or devices do not limit the scope of the present invention.
  • the display device 100 does not have a tuner 131 and a demodulator 132 but has a network interface 133 or an external device interface 135. You can also receive and play video through the device.
  • the display device 100 is divided into an image processing device such as a set-top box for receiving broadcast signals or contents according to various network services, and a content playback device for playing content input from the image processing device. It can be implemented.
  • an image processing device such as a set-top box for receiving broadcast signals or contents according to various network services
  • a content playback device for playing content input from the image processing device. It can be implemented.
  • the method of operating a display device includes not only the display device 100 as described with reference to FIG. 1, but also an image processing device such as the separated set-top box or the display 180. ) and a content playback device having an audio output unit 185.
  • Figure 2 is a block diagram of a remote control device according to an embodiment of the present invention
  • Figure 3 shows an example of the actual configuration of the remote control device 200 according to an embodiment of the present invention.
  • the remote control device 200 includes a fingerprint reader 210, a wireless communication circuit 220, a user input interface 230, a sensor 240, an output interface 250, and a power supply circuit ( 260), memory 270, controller 280, and microphone 290.
  • the wireless communication circuit 220 transmits and receives signals to and from any one of the display devices according to the embodiments of the present invention described above.
  • the remote control device 200 has an RF circuit 221 capable of transmitting and receiving signals to and from the display device 100 in accordance with RF communication standards, and is capable of transmitting and receiving signals to and from the display device 100 in accordance with IR communication standards.
  • An IR circuit 223 may be provided.
  • the remote control device 200 may be provided with a Bluetooth circuit 225 capable of transmitting and receiving signals to and from the display device 100 according to the Bluetooth communication standard.
  • the remote control device 200 is provided with an NFC circuit 227 capable of transmitting and receiving signals to the display device 100 according to the NFC (Near Field Communication) communication standard, and displays the display device 100 according to the WLAN (Wireless LAN) communication standard.
  • a WLAN circuit 229 capable of transmitting and receiving signals to and from the device 100 may be provided.
  • 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 circuit 220.
  • the remote control device 200 can receive a signal transmitted by the display device 100 through the RF circuit 221 and, if necessary, turn on/off the display device 100 through the IR circuit 223. Commands for turning off, changing channels, changing volume, etc. can be sent.
  • the user input interface 230 may be comprised of a keypad, buttons, touch pad, or touch screen.
  • the user can input commands related to the display device 100 into the remote control device 200 by manipulating the user input interface 230. If the user input interface 230 has a hard key button, the user can input a command related to the display device 100 to the remote control device 200 through a push operation of the hard key button. This will be explained with reference to FIG. 3 .
  • the remote control device 200 may include a plurality of buttons.
  • the plurality of buttons include a fingerprint recognition button (212), power button (231), home button (232), live button (233), external input button (234), volume control button (235), voice recognition button (236), It may include a channel change button 237, a confirmation button 238, and a back button 239.
  • the fingerprint recognition button 212 may be a button for recognizing the user's fingerprint.
  • the fingerprint recognition button 212 is capable of a push operation and may receive a push operation and a fingerprint recognition operation.
  • the power button 231 may be a button for turning on/off the power of the display device 100.
  • 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 of the sound output by the display device 100.
  • the voice recognition button 236 may be a button for receiving the 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.
  • the user input interface 230 has a touch screen, the user can input commands related to the display device 100 through the remote control device 200 by touching a soft key on the touch screen. Additionally, the user input interface 230 may be equipped with various types of input means that the user can operate, such as scroll keys and jog keys, and this embodiment does not limit the scope of the present invention.
  • the sensor 240 may include 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.
  • 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 measures the moving speed of the remote control device 200. Information about such things can be sensed.
  • the remote control device 200 may further include a distance measurement sensor and can sense the distance from the display 180 of the display device 100.
  • the output interface 250 may output a video or audio signal corresponding to a manipulation of the user input interface 230 or a signal transmitted from the display device 100.
  • the user can recognize whether the output interface 250 is manipulating the user input interface 230 or controlling the display device 100.
  • the output interface 250 includes an LED 251 that turns on when the user input interface 230 is manipulated or a signal is transmitted and received with the display device 100 through the wireless communication unit 225, and a vibrator 253 that generates vibration. ), a speaker 255 that outputs sound, or a display 257 that outputs an image.
  • the power supply circuit 260 supplies power to the remote control device 200, and stops power supply when the remote control device 200 does not move for a predetermined period of time, thereby reducing power waste.
  • the power supply circuit 260 can resume power supply when a predetermined key provided in the remote control device 200 is operated.
  • the memory 270 may store various types of programs, application data, etc. necessary for controlling or operating the remote control device 200.
  • the remote control device 200 transmits and receives signals wirelessly through the display device 100 and the RF circuit 221, the remote control device 200 and the display device 100 transmit and receive signals through a predetermined frequency band. .
  • the controller 280 of the remote control device 200 stores and references information about the display device 100 paired with the remote control device 200 and the frequency band capable of wirelessly transmitting and receiving signals in the memory 270. You can.
  • the controller 280 controls all matters related to the control of the remote control device 200.
  • the controller 280 sends a signal corresponding to a predetermined key operation of the user input interface 230 or a signal corresponding to the movement of the remote control device 200 sensed by the sensor 240 through the wireless communication unit 225. 100).
  • the microphone 290 of the remote control device 200 can acquire voice.
  • a plurality of microphones 290 may be provided.
  • Figure 4 shows an example of utilizing a remote control device according to an embodiment of the present invention.
  • FIG. 4 illustrates that a pointer 205 corresponding to the remote control device 200 is displayed on the display 180.
  • the user can move or rotate the remote control device 200 up and down, left and right.
  • the pointer 205 displayed on the display 180 of the display device 100 corresponds to the movement of the remote control device 200.
  • This remote control device 200 can be called a spatial remote control because the corresponding pointer 205 is moved and displayed according to movement in 3D space, as shown in the drawing.
  • FIG. 4 illustrates that when the user moves the remote control device 200 to the left, the pointer 205 displayed on the display 180 of the display device 100 also moves to the left correspondingly.
  • the display device 100 may calculate the coordinates of the pointer 205 from information about the movement of the remote control device 200.
  • the display device 100 may display the pointer 205 to correspond to the calculated coordinates.
  • FIG. 4 illustrates a case where a user moves the remote control device 200 away from the display 180 while pressing a specific button in the remote control device 200.
  • the selected area in the display 180 corresponding to the pointer 205 can be zoomed in and displayed enlarged.
  • the selected area in the display 180 corresponding to the pointer 205 may be zoomed out and displayed in a reduced size.
  • the selected area may be zoomed out, and when the remote control device 200 approaches the display 180, the selected area may be zoomed in.
  • the moving speed or direction of the pointer 205 may correspond to the moving speed or direction of the remote control device 200.
  • a pointer in this specification refers to an object displayed on the display 180 in response to the operation of the remote control device 200.
  • the pointer 205 can be an object of various shapes other than the arrow shape shown in the drawing.
  • concepts may include dots, cursors, prompts, thick outlines, etc.
  • the pointer 205 can be displayed not only in response to one of the horizontal and vertical axes on the display 180, but also in response to multiple points, such as a line or surface. .
  • the display device 100 can be connected to various external devices, including a set-top box, Blu-ray player, DVD player, game console, sound bar, smartphone, PC, USB memory, and home theater. Additionally, the display device 100 can be connected to another display device and provide a mirroring function in which an image displayed on the display device 100 is displayed as is on the other display device. Accordingly, the display device 100 can receive video signals and audio signals from an external device, and allow the video and audio provided by the external device to be output from another display device.
  • other display devices may be located in a different space from the display device 100.
  • other display devices and external devices are physically separated, there is a limit to the range of controlling external devices while watching images in the space where the other display devices are located.
  • the display device 100 is intended to allow other display devices to control external devices without restrictions.
  • the display device 100 is intended to transmit key information for controlling an external device to another display device.
  • the display device 100 directly connected to an external device will be referred to as a first display device, and another display device connected to the display device 100 will be referred to as a second display device 300. .
  • Another display device may include at least some or all of the same components as those included in the display device 100.
  • both the first display device 100 and the second display device 300 may be the display device 100 described in FIG. 1, but they are merely divided for convenience of explanation.
  • the controller 170 and the display 180 of the first display device 100 are respectively named the first controller and the first display, and the controller, display, and The speakers are named second controller 370, second display 380, and second speaker, respectively.
  • FIG. 5 is a ladder diagram for explaining a method of operating a display system consisting of an external device, a first display device, and a second display device according to an embodiment of the present disclosure.
  • the first display device 100 may be connected to the external device 400 (S10).
  • the first controller 170 may receive at least a portion of the video signal and the audio signal from the external device 400. Although not shown in the drawing, images and audio provided by the external device 400 may be output from the first display device 100 accordingly.
  • the first display device 100 When connected to the external device 400, the first display device 100 can receive key information for controlling the external device 400 (S20).
  • the first controller 170 may receive key information for controlling the external device 400 from an external server (not shown). Meanwhile, the key information may be stored in the first display device 100. If the key information is stored in the first display device 100, the step of receiving key information from an external server (not shown) is omitted. You may. Additionally, the first display device 100 may directly receive key information for controlling the external device 400 from the external device 400.
  • the key information may be a key list for controlling the external device 400.
  • Key information may include the type of key (keyType), the name of the key (keyName), etc.
  • the types of keys may be number keys, function keys, color keys, player keys, etc.
  • the names of keys may be '0', '1', '2' for number keys, 'Power', 'Home', etc. for function keys, and 'red', ' for color keys. green', etc., and may be 'rewind', 'play', etc. of the player key.
  • Key information may vary depending on the type and model of the external device 400. That is, the type and name of the key may be different depending on the type and model of the external device 400.
  • the first display device 100 may be connected to the second display device 300 (S30).
  • the first controller 170 may transmit video signals and audio signals received from the external device 400 to the second display device 300.
  • the first controller 170 configures the second display device so that the video and audio that can be output from the first display device 100 are output from the second display device 300 based on the received video and audio signals.
  • a mirroring signal can be transmitted to (300).
  • the second display device 300 can output images and audio provided by the external device 400 (S40).
  • the second controller 380 outputs the video and audio provided by the external device 400 from the second display device 300 based on the video signal and audio signal received from the first display device 100 or the mirroring signal. It can be done as much as possible.
  • images and audio provided by the external device 400 may be output from some or all of the first display device 100 and the second display device 300.
  • the first display device 100 may transmit a signal including information indicating whether key information can be transmitted to the second display device 300 (S50).
  • steps S10 to S40 the external device 400 and the first display device 100 are first connected, and then the first display device 100 and the second display device 300 are connected.
  • each The order in which devices are connected is not limited to this.
  • While the first display device 100 is connected to either the external device 400 or the second display device 300, when connected to the other device, it determines whether key information can be transmitted to the second display device 300. A signal containing the information indicated can be transmitted.
  • the first controller 170 when the first controller 170 is connected to the second display device 300 while connected to the external device 400, key information for controlling the external device 400 can be transmitted to the second controller 370. A signal containing information representing can be transmitted.
  • the first controller 170 determines whether key information for controlling the external device 400 can be transmitted to the second controller 370. A signal containing the information indicated can be transmitted.
  • the first controller 170 can transmit key information to the second controller 370 if key information is stored in the first display device 100 or can receive key information from an external server (not shown). A signal containing information representing can be transmitted.
  • the first controller 170 stores the key information in the second controller 370.
  • a signal containing information indicating that transmission is impossible can be transmitted.
  • the second display device 300 may display whether control of the external device 400 is possible based on a signal including information indicating whether key information transmission is possible (S60).
  • the second controller 370 can control the external device 400 without restrictions only if it can receive key information for controlling the external device 400 from the first controller 170, so whether key information can be transmitted. Whether or not the external device 400 can be controlled can be displayed on the second display 380 based on a signal including information indicating .
  • the second controller 370 When the second controller 370 receives a signal containing information indicating that key information transmission is possible from the first controller 170, it may display on the second display 380 that control of the external device 400 is possible. there is.
  • the second controller 370 when the second controller 370 receives a signal containing information indicating that key information transmission is impossible from the first controller 170, it displays on the second display 380 that control of the external device 400 is impossible. It can be displayed.
  • FIG. 6 is an example illustrating a screen displayed on a second display device of a display system comprised of an external device, a first display device, and a second display device according to an embodiment of the present disclosure.
  • the second controller 370 transmits a signal including information indicating whether key information can be transmitted from the first controller 170
  • the external device A message including whether control is possible (400) can be displayed. That is, the second controller 170 may display a message including whether the external device 400 can be controlled based on whether key information can be received from the first display device 100.
  • the second controller 370 when the signal received from the first controller 170 includes information indicating that key information can be provided, the second controller 370, as shown in (a) of FIG. 6, The message ‘External devices can be controlled’ may be displayed on the display 380. That is, if the signal received from the first controller 170 includes information indicating that key information can be provided, the second controller 370 determines that control of the external device 400 is possible on the second display 380. It can be displayed.
  • the second controller 370 when the signal received from the first controller 170 includes information indicating that key information cannot be provided, the second controller 370, as shown in (b) of FIG. 6, The message ‘External device cannot be controlled’ may be displayed on the display 380. That is, the second controller 370 may display on the second display 380 that control of the external device 400 is impossible.
  • the second display device 100 may be able to control the external device 400 for basic functions.
  • the basic function may be a function commonly included in the external device 400 to provide content.
  • the basic function may be a channel change function or a power function. That is, there may be cases where the second display device 100 cannot receive key information from the first display device 100 but can partially control the external device 400.
  • the second controller 370 sends a message indicating that partial control of the external device 400 may be possible. More can be displayed. If partial control of the external device 400 is possible, the second controller 370 displays a message such as 'Channel change is possible' on the second display 380, as shown in (b) of FIG. 6. It can be displayed.
  • the second controller 370 may display whether or not the external device 400 can be controlled only when key information cannot be received. However, it may display whether the external device 400 can be controlled only when the key information can be received. It can also be displayed. Additionally, the second controller 370 may display whether or not it is possible to control the external device 400 both when it cannot receive key information and when it can receive key information.
  • the user of the second display device 300 determines in advance whether the external device 400 can be controlled without restrictions and watches the video. Inconvenience caused by unexpected restrictions can be minimized.
  • the second display device 300 may request key information to be transmitted from the first display device 100 (S70).
  • the second controller 370 transmits key information to the first display device 100 only when the first display device 100 transmits a signal containing information indicating that key information transmission is possible. You can request.
  • the second controller 370 transmits key information to the first display device 100 regardless of the information indicating whether key information transmission is possible included in the signal transmitted by the first display device 100. You can request. For example, when the second controller 370 receives a user input, it may request the first controller 170 to transmit key information.
  • the first display device 100 can obtain from the external server whether there is a change in the key information, and if there is a change, receive the changed key information. There is (S80).
  • the first controller 170 When the first controller 170 receives a request to transmit key information from the second controller 370, it can obtain whether there is a change in key information from an external server (not shown).
  • Changes in key information may occur when a new model of external device 400 is released and all key information corresponding to the new model of external device 400 is added.
  • the change in key information may be when at least part of the key information is modified or added according to an update of the existing external device 400.
  • the first controller 170 may receive the changed key information from an external server (not shown).
  • the first controller 170 receives key information from an external server (not shown). You may not receive it.
  • the first display device 100 may transmit key information to the second display device 300 (S90).
  • the first controller 170 may transmit key information received from an external server (not shown) or key information stored in the first display device 100 to the second controller 370.
  • the second display device 300 may display a key list UI based on the received key information (S100).
  • the key list UI may be a UI indicating at least one key that can be selected based on key information received by the second controller 370.
  • the key list UI may be different depending on the key information received by the second controller 370.
  • the second controller 370 may display a key list UI on the second display 380 based on the received key information.
  • the key list UI may include icons corresponding to keys for controlling at least one external device 400.
  • the key list UI may be different depending on the key information received by the second controller 370, it may be displayed differently depending on the external device 400 connected to the first display device 100.
  • the second display device 300 may receive a user input for selecting one of the icons included in the key list UI (S110).
  • the second display device 300 may receive a user input from a remote control device (not shown) or may receive a user input by detecting an input touching the second display 380, but this is only an example.
  • the second display device 300 may transmit key data corresponding to the selected icon (S120).
  • the second controller 370 When the second controller 370 receives a user input for selecting one of the items or icons included in the key list UI for the external device 400, the second controller 370 selects the icon selected by the first controller 170 based on the received user input. Key data corresponding to can be transmitted.
  • Key data may be data of a key corresponding to the selected icon.
  • Key data may include the type and key name of the key corresponding to the selected icon.
  • the key data further includes identification information of the external device 400 in order to identify which external device the key is for controlling when a plurality of external devices 400 are connected to the first display device 100. can do.
  • the first display device 100 may generate a control signal for controlling the external device 400 based on the received key data (S130) and transmit the generated control signal to the external device 400 (S140). ).
  • the external devices 400 connected to the first display device 100 may vary, methods by which the first display device 100 controls the external devices 400 may also vary.
  • the external device 400 may be controlled by any one of Consumer Electronics Control (CEC), wireless network, and Infrared (IR). That is, the first display device 100 can control the external device 400 by transmitting to the external device 400 a control signal generated using any one of CEC, wireless network, and IR.
  • CEC Consumer Electronics Control
  • IR Infrared
  • the first display device 100 determines which of CEC, wireless network, and IR based on the priority set according to the external device 400 connected to the first display device 100. We want to use one to generate a control signal and transmit it to an external device.
  • FIG. 7 is a flowchart illustrating an operation in which a first display device of a display system composed of an external device, a first display device, and a second display device generates a signal to control an external device according to an embodiment of the present disclosure.
  • the first controller 170 may obtain a connection method between the first display device 100 and the external device 400 (S210).
  • the first display device 100 and the external device 400 may be connected wired or wirelessly.
  • the first controller 170 may obtain whether the first display device 100 and the external device 400 are connected by wire or wirelessly.
  • the first controller 170 can obtain whether the external device is controllable using the CEC method (S220). If the first controller 170 determines that the external device 400 is an external device controllable by the CEC method, it can generate a CEC signal (S230). On the other hand, the first controller 170 can generate an IR signal if it determines that the external device 400 is an external device that cannot be controlled using the CEC method.
  • the first controller 170 can generate a CEC signal and transmit it to the external device 400. Since control through CEC can be more stable than control through IR, control through CEC is given higher priority among CEC and IR.
  • the first controller 170 may obtain whether the external device is an external device that can be controlled through a network (S240).
  • the first controller 170 can generate a network signal if it determines that the external device 400 is an external device controllable by a network method (S24).
  • the first controller 170 can generate an IR signal if it determines that the external device is an external device that cannot be controlled through a network method.
  • the first controller 170 can generate a network signal and transmit it to the external device 400. Since control through the network can be more stable than control through IR, control by IR has a higher priority among network and IR.
  • the IR signal generated may be generated based on the key data and IR DB received from the second controller 370.
  • the IR DB may be stored in the first display device 100 or may be stored in an external server (not shown) and received by the first controller 170 from the external server (not shown).
  • the generated IR signal can be transmitted to the external device 400 through the remote control device 200 if the remote control device 200 can receive the IR signal and transmit it to the external device 400.
  • the IR signal may be transmitted to the external device 400 through the IR Blaster included in the display device 100.
  • the IR Blaster included in the display device 100 may be at least some of a wired IR Blaster and a wireless IR Blaster. If the display device 100 includes both a wired IR Blaster and a wireless IR Blaster, the generated IR signal can be transmitted to the external device 400 through the wired IR Blaster.
  • the IR signal may be transmitted with priority in the order of the remote control device 200, the wired IR Blaster, and the wireless IR Blaster.
  • the first controller 170 generates a CEC signal when the first display device 100 and the external device 400 are connected by wire, but can generate an IR signal when CEC control is not possible. . Additionally, the first controller 170 generates a network signal when the first display device 100 and the external device 400 are wirelessly connected, but can generate an IR signal when network control is not possible.
  • this priority is only an example, and the first controller 170 may generate a control signal based on a preset priority in another method.
  • the external device 400 can be controlled once. there is. In other words, there is an advantage in preventing the external device 400 from being controlled overlappingly.
  • the external device 400 operates based on the received control signal (S150) and may transmit at least a portion of the video signal and the audio signal to the first display device 100 (S150).
  • the first controller 170 may receive at least some of the video signal and audio signal from the external device 400 that operates based on the control signal. Although not shown in the drawing, according to this, the first display device 100 may output images and audio provided by an external device 400 that operates based on a control signal.
  • the first display device 100 may receive video signals and audio signals from the external device 400 that operates based on the control signal (S160).
  • the first display device 100 may transmit the video signal and audio signal received from the external device 400 that operates based on the control signal to the second display device 300 (S170).
  • the first controller 170 may transmit video signals and audio signals received from the external device 400 that operates based on the control signal to the second display device 300.
  • the first controller 170 configures the second display device so that the video and audio that can be output from the first display device 100 are output from the second display device 300 based on the received video and audio signals.
  • a mirroring signal can be transmitted to (300).
  • the second display device 200 can output some of the images and audio provided by the external device 400 (S180).
  • the second controller 380 controls the video and audio signals received from the first display device 100, or the video and audio provided by the external device 400 that operates based on the control signal based on the mirroring signal, to the second controller 380. It can be output from the display device 300.
  • video and audio provided by the external device 400 controlled based on the control signal may be output from some or all of the first display device 100 and the second display device 300.
  • the first display device and display system display the external device 400 based on the key information received by the second display device 300 from the first display device 100. You can display a menu to control . And, when the first display device 100 receives key data selected to control the external device 400 from the second display device 300, it can generate a control signal and transmit it to the external device 400. Accordingly, images and audio provided by the external device 400 that operates based on the control signal may be output from at least some of the first display device 100 and the second display device 300.
  • the user can control the external device 400 using the second display device 300 without restrictions.
  • the user can use the external device 400 without restrictions without directly connecting the external device 400 to each display device.
  • the external device 400 connected to the first display device 100 of the display system consisting of the first and second display devices is connected to the external device 400 in the second display device.
  • a specific example of controlling 400 will be described.
  • the external device 400 connected to the first display device 100 may be a set-top box.
  • FIG. 8 illustrates a screen displayed on the second display device when the external device connected to the first display device of a display system consisting of an external device, a first display device, and a second display device according to an embodiment of the present disclosure is a set-top box. It is a drawing.
  • Figure 8 (a) is an example of a screen in which the second controller 370 receives key information and displays a key list UI (m1) on the second display 380.
  • the key list UI (m1) may be included in the entire menu (m).
  • the full menu m may be a menu displayed to control at least part of the second display device 300 or the external device 400 when the second display device 300 receives a user input.
  • Figure 8(b) is a screen where the entire menu (m) shown in Figure 8(a) is scrolled down.
  • the entire menu (m) may further include a menu (m2) for controlling the second display device 300.
  • the description is made on the assumption that the external device 400 connected to the first display device 100 is a set-top box. Accordingly, the key list UI shown in FIG. 8 may be a menu (m1) for controlling the set-top box.
  • the name of the set-top box may be displayed at the top of the menu (m1) for controlling the set-top box so that it can be recognized that it is the menu (m1) for controlling the set-top box. That is, the name of the external device 400 may be displayed at the top of the menu m1 for controlling the external device 400 so that it can be recognized that it is the menu m1 for controlling the external device 400.
  • the key list UI (m1) may include items corresponding to the type of key. Additionally, the item corresponding to the type of key may include an icon corresponding to the name of the key.
  • the menu (m1) for controlling the set-top box includes items corresponding to number keys (m1-1), items corresponding to function keys (m1-2), items corresponding to color keys (m1-3), and player keys. It may include an item corresponding to the same key type as the corresponding item (m1-4).
  • Items corresponding to numeric keys (m1-1) have key names '0', '1', '2', '3', '4', '5', '6', '7', and '8'. , may include an icon corresponding to the key '9'.
  • Items (m1-2) corresponding to function keys may include icons corresponding to keys whose key names are 'Power', 'Home', 'Menu', and 'Preferred Channel'.
  • Items corresponding to color keys have key names 'red' (m1-31), 'green' (m1-32), 'yellow' (m1-33), and 'blue' (m1-34). It may contain an icon corresponding to the in key.
  • the items corresponding to the player keys (m1-4) have the key names 'Rewind' (m1-41), 'Play' (m1-42), 'Pause' (m1-43), and 'Fast-forward' (m1-43). 44)', and may include icons corresponding to the keys 'Stop' (m1-45).
  • key types items corresponding to the key types, key names, and icons corresponding to the key names are only examples and are not limited thereto.
  • the name of the second display device 300 may be displayed at the top of the menu m2 for controlling the second display device 300 to distinguish it from the menu m1 for controlling the set-top box.
  • the menu m2 for controlling the second display device 300 may include a user manual item and an app termination item.
  • the second controller 370 receives a user input for selecting a user manual item, it can display the user manual of the second display device 100 on the second display 380. Additionally, the second controller 370 may terminate the app running on the second display device 300 when receiving a user input for selecting an app termination item.
  • the second controller 370 receives a user input for selecting an item included in the menu (m2) for controlling the second display device 300 among all menus (m), the second display device 300 Movement can be controlled.
  • the user can easily select which device to control among the external device 400 and the second display device 300.
  • Figure 8 (c) is an example of a screen on which an image provided by a set-top box operating based on a control signal is displayed on the second display device 300.
  • (c) in FIG. 8 is displayed when the second controller 370 receives a user input for selecting an icon corresponding to the 'preferred channel' key included in the menu (m1) for controlling the set-top box. It could be a screen.
  • the second controller 370 As the second controller 370 receives a user input for selecting an icon corresponding to the 'preferred channel' key, the second controller 370 sends the key data of the 'preferred channel' key to the first display device 100.
  • the first controller 170 may generate a control signal corresponding to the 'preferred channel' key based on the received key data and transmit it to the set-top box.
  • the set-top box that receives the control signal corresponding to the 'preferred channel' key can switch the channel to the preferred channel and provide video, as in the case of directly receiving a user input for selecting the 'preferred channel' key. Accordingly, an image provided by the set-top box by switching channels may be displayed on the second display 380.
  • the user can control the set-top box using the second display device 300.
  • the external device 400 connected to the first display device 100 may be a DVD player rather than a set-top box.
  • FIG. 9 illustrates a screen displayed on the second display device when the external device connected to the first display device of a display system consisting of an external device, a first display device, and a second display device according to an embodiment of the present disclosure is a DVD player. It is a drawing.
  • FIG. 9 is an example of a screen where the second controller 370 receives key information and displays a key list UI (m1) on the second display 380.
  • the key list UI (m1) may be included in the entire menu (m).
  • the full menu m may be a menu displayed to control the second display device 300 or the external device 400 when the second display device 300 receives a user input. Additionally, the entire menu (m) may further include a key list UI (m1).
  • the description is made on the assumption that the external device 400 connected to the first display device 100 is a DVD player. Accordingly, the key list UI (m1) shown in FIG. 9 may be a menu (m1) for controlling the DVD player.
  • the name of the DVD player may be displayed at the top of the menu (m1) for controlling the DVD player so that it can be recognized that it is the menu (m1) for controlling the DVD player. That is, the name of the sub device 400 may be displayed at the top of the menu m1 for controlling the external device 400 so that it can be recognized that it is the menu m1 for controlling the external device 400.
  • the key list UI (m1) may include items corresponding to the type of key, and the item corresponding to the type of key may include an icon corresponding to the name of the key.
  • the menu (m1) for controlling the DVD player may include items corresponding to key types, such as items corresponding to function keys (m1-2) and items corresponding to player keys (m1-3), as shown in FIG. You can. However, unlike FIG. 8, the menu (m1) for controlling the DVD player may not include the items (m1-1) corresponding to the number keys and the items (m1-3) corresponding to the color keys.
  • the item (m1-2) corresponding to the function key in FIG. 9 may include icons corresponding to keys whose key names are 'Power' and 'Home', as shown in FIG. 8. However, unlike in FIG. 8, the item (m1-2) corresponding to the function key in FIG. 9 may not include icons corresponding to the keys whose key names are 'Menu' and 'Preferred Channel', and whose key names are 'Disk'. It may further include icons corresponding to the 'menu' keys.
  • the items (m1-4) corresponding to the player keys in Figure 9 have the key names 'Rewind (m1-41)', 'Play' (m41-42), and 'Pause' (m41-43), as shown in Figure 8.
  • 'fast forward (m41-44)', and 'stop' (m41-45) may include icons corresponding to the keys.
  • the item (m1-4) corresponding to the player key in Figure 9 has the key names 'Move to previous scene' (m1-46) and 'Move to next scene' (m1-47). Additional corresponding icons may be included.
  • the menu m2 for controlling the second display device 300 may be displayed in the same manner as in FIG. 8 . If the second display device 300 is a display device of the same type and model, regardless of the external device 400 connected to the first display device 100, as shown in FIGS. 8 and 9, the second display device 300 The menu m2 for controlling the display device 300 may be displayed in the same manner.
  • Figure 9(b) is an example of a screen in which an image provided by a DVD player operating based on a control signal is displayed on the second display device 300.
  • FIG. 9 shows the user selecting the icon corresponding to the 'Move to next scene' (m1-47) key included in the menu (m1) for controlling the DVD player by the second controller 370. This may be a screen displayed when input is received.
  • the second controller 370 As the second controller 370 receives the user input of selecting the icon corresponding to the 'Go to next scene' (m1-47) key, the second controller 370 moves to 'Go to next scene' (m1-47 )
  • the key data of the key is transmitted to the first display device 100, and the first controller 170 generates a control signal corresponding to the 'Move to next scene' (m1-47) key based on the received key data. You can send it to a DVD player.
  • the set-top box that receives the control signal corresponding to the 'Move to next scene' (m1-47) key moves to the next scene, as in the case of directly receiving a user input for selecting the 'Move to next scene' (m1-47) key. You can go to the scene and provide video. Accordingly, an image provided by the DVD player by moving to the next scene may be displayed on the second display 380.
  • the user can control the DVD player using the second display device 300.
  • the items included in the menu for controlling the DVD player may be partially or completely different from the items and icons included in the menu for controlling the set-top box. That is, the type and name of the key included in the key information for controlling the external device 400 may be partially or completely different depending on the external device 400.
  • the display system provides a key list UI for controlling each of the various external devices 400, even if some or all of the keys for controlling the external device 400 are different depending on the external device 400. can be provided.
  • the user can intuitively control all functions of various external devices 400 from the second display device 300 regardless of the type of external device 400, which has the advantage of increasing convenience in use.
  • a user of a display device or display system according to an embodiment of the present disclosure can use the external device 400 without restrictions without directly connecting the external device 400 to each display device.
  • the above-described method can be implemented as processor-readable code on a program-recorded medium.
  • media that the processor can read include ROM, RAM, CD-ROM, magnetic tape, floppy disk, and optical data storage devices.
  • the display device described above is not limited to the configuration and method of the above-described embodiments, and the embodiments may be configured by selectively combining all or part of each embodiment so that various modifications can be made. It may be possible.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

Selon un mode de réalisation de la présente invention, un premier dispositif d'affichage peut comprendre : une interface de dispositif externe permettant une connexion à au moins un dispositif externe ; une interface de communication sans fil permettant une connexion à au moins un second dispositif d'affichage ; et un dispositif de commande qui transmet au second dispositif d'affichage des informations sur des touches permettant de commander le dispositif externe.
PCT/KR2022/015267 2022-10-11 2022-10-11 Dispositif et système d'affichage WO2024080389A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/KR2022/015267 WO2024080389A1 (fr) 2022-10-11 2022-10-11 Dispositif et système d'affichage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2022/015267 WO2024080389A1 (fr) 2022-10-11 2022-10-11 Dispositif et système d'affichage

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WO2024080389A1 true WO2024080389A1 (fr) 2024-04-18

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