WO2021049765A1 - Dispositif d'affichage et système d'affichage - Google Patents

Dispositif d'affichage et système d'affichage Download PDF

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Publication number
WO2021049765A1
WO2021049765A1 PCT/KR2020/010517 KR2020010517W WO2021049765A1 WO 2021049765 A1 WO2021049765 A1 WO 2021049765A1 KR 2020010517 W KR2020010517 W KR 2020010517W WO 2021049765 A1 WO2021049765 A1 WO 2021049765A1
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WIPO (PCT)
Prior art keywords
terminal
transmission
content data
reception connector
control unit
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PCT/KR2020/010517
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English (en)
Korean (ko)
Inventor
김현석
김현규
오정준
유니나
Original Assignee
삼성전자주식회사
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Publication of WO2021049765A1 publication Critical patent/WO2021049765A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1423—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
    • G06F3/1446—Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display display composed of modules, e.g. video walls
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
    • G09F9/3026—Video wall, i.e. stackable semiconductor matrix display modules
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/02—Composition of display devices
    • G09G2300/026—Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions

Definitions

  • the disclosed invention relates to a display system. Specifically, it relates to a display system including a plurality of display devices.
  • a display device is an output device that provides visual image information to a user, and is installed in various places such as indoors or outdoors, and is used for various purposes.
  • the display device may be connected to another display device to implement a video wall on a large display screen.
  • a display device may be connected to another display device to implement a video wall on a large display screen.
  • a plurality of display devices may be arranged in a matrix form, and a part of the entire image may be displayed on each screen or the same image may be displayed.
  • An aspect of the disclosed invention is to provide a display system including a plurality of display devices capable of integrally displaying one image content.
  • An aspect of the disclosed invention is to provide a display system that normally outputs image content even when a problem occurs in at least one of the plurality of display devices.
  • a display device includes an image display unit; A first transmission/reception connector for receiving content data from an external device; A second transmission/reception connector outputting the content data to the outside; A control unit for controlling the image display unit to display an image corresponding to the content data; A distribution unit for transmitting the content data to the control unit; A multiplexer configured to output the content data received from the first transmission/reception connector to at least one of the control unit, the distribution unit, and the second transmission/reception connector; When the controller detects an abnormal signal of the distribution unit, the multiplexer controls the multiplexer to output the content data to the controller and the second transmission/reception connector.
  • the multiplexer may provide a bypass path for content data received from the first transmission/reception connector, and may be connected to the control unit and the second transmission/reception connector to output the bypassed content data.
  • the display device further comprises a third transmission/reception connector receiving content data from the external device and outputting the content data to the control unit, wherein the multiplexer is between the third transmission/reception connector and the control unit.
  • the bypassed content data may be output to the control unit through the node located at.
  • the distribution unit may divide the content data into a plurality of content data, output one of the plurality of content data to the control unit, and output another one of the plurality of content data through the second transmission/reception connector. .
  • the distribution unit includes a first input terminal, a first output terminal, and a second output terminal, the first input terminal is connected to a third terminal of the multiplexer, and the first output terminal is connected to a control unit, The second output terminal may be connected to the second transmission/reception connector.
  • the multiplexer includes a first terminal connected to a first transmission/reception connector, a second terminal connected to the control unit, a third terminal connected to a first input terminal of the distribution unit, and a fourth terminal connected to the second transmission/reception connector It may include.
  • the multiplexer may output the content data to a first input terminal of the distribution unit through the first terminal and the third terminal.
  • the multiplexer When the multiplexer detects an abnormal signal of the distribution unit, it outputs the content data to the control unit through the first terminal and the second terminal, and the second terminal through the first terminal and the second terminal. It can be output by sending/receiving connector.
  • a display system includes an image source device that provides content data; And a plurality of display devices serially connected to the image source device and receiving content data from the image source device in a predetermined order, wherein at least one of the plurality of display devices transmits the content data in the predetermined order.
  • a distribution unit that transmits; And a controller configured to control the movement of the content data to bypass the distribution unit when an abnormal signal of the distribution unit is detected.
  • At least one of the plurality of display devices further includes a multiplexer for providing a bypass path of the content data, outputting the bypassed content data to a control unit, and delivering the bypassed content data in the predetermined order.
  • a multiplexer for providing a bypass path of the content data, outputting the bypassed content data to a control unit, and delivering the bypassed content data in the predetermined order.
  • At least one of the plurality of display devices may include a first transmission/reception connector for receiving the content data; And a second transmission/reception connector for transmitting the content data in the predetermined order.
  • At least one of the plurality of display devices further includes a third transceiving connector for receiving the content data and outputting the content data to the control unit, and the multiplexer is a node located between the third transceiving connector and the control unit Through this, the bypassed content data may be output to the control unit.
  • the distribution unit may divide the content data into a plurality of content data, output one of the plurality of content data to the control unit, and output another one of the plurality of content data through the second transmission/reception connector. .
  • the distribution unit includes a first input terminal, a first output terminal, and a second output terminal, the first input terminal is connected to a third terminal of the multiplexer, and the first output terminal is connected to a control unit, The second output terminal may be connected to the second transmission/reception connector.
  • the multiplexer includes a first terminal connected to a first transmission/reception connector, a second terminal connected to the control unit, a third terminal connected to a first input terminal of the distribution unit, and a fourth terminal connected to the second transmission/reception connector It may include.
  • the multiplexer When the multiplexer detects an abnormal signal of the distribution unit, it outputs the content data to the control unit through the first terminal and the second terminal, and the second terminal through the first terminal and the second terminal. It can be output by sending/receiving connector.
  • the multiplexer may output the bypassed content data to a control unit through the second terminal, and output the bypassed content data to a second transmission/reception connector through the fourth terminal.
  • a display device connected last based on a predetermined order may not include at least one of a distribution unit and a multiplexer.
  • a display device includes an image display unit; A first transmission/reception connector; A second transmission/reception connector; A distribution unit including a first input terminal, a first output terminal, and a second output terminal; A multiplexer including a first terminal, a second terminal, a third terminal, and a fourth terminal; A control unit connected to the first output terminal of the distribution unit and the second terminal of the multiplexer and controlling the image display unit, wherein the first terminal of the multiplexer is connected to the first transmission/reception connector, A third terminal of the multiplexer is connected to a first input terminal of the distribution unit, and a fourth terminal of the multiplexer is connected to a second output terminal of the distribution unit and the second transmission/reception connector.
  • the display device may further include a third transceiving connector, and a second terminal of the multiplexer may be connected to the third transceiving connector and the control unit.
  • image content may be normally output. Therefore, the display system can respond to an unexpected loop-out error without any additional measures.
  • FIG. 1 shows a display system according to an embodiment.
  • FIG. 2 illustrates a configuration of a display device according to an exemplary embodiment.
  • FIG. 3 is a diagram illustrating a connection relationship between a display system according to an exemplary embodiment.
  • FIG. 4 is a diagram illustrating a configuration of a transmission/reception connector bundle included in a display device according to an exemplary embodiment.
  • FIG. 5 illustrates a configuration of a transmission/reception connector bundle included in a display device according to another embodiment.
  • FIG. 6 illustrates a configuration of a multiplexer included in a display device according to an exemplary embodiment.
  • FIG. 7 is a flowchart illustrating a control operation of a display device according to an exemplary embodiment.
  • FIG. 13 illustrates a connection relationship between displays referenced in a display system according to an exemplary embodiment.
  • FIG. 14 illustrates a flow of content data in a display system according to an embodiment.
  • the identification code is used for convenience of explanation, and the identification code does not describe the order of each step, and each step may be implemented differently from the specified order unless a specific sequence is clearly stated in the context. have.
  • FIG. 1 shows a display system according to an embodiment.
  • the display system 1 may include videowalls 10 that visually display an image, and an image source device 20 that provides content data to the video wall 10.
  • the content data may include at least one of video data providing visual information and audio data providing audio information.
  • the image source device 20 may include a storage medium capable of storing content including video and audio, or may receive content from an external content source (eg, a video streaming service server).
  • an external content source eg, a video streaming service server
  • the image source device 20 may store a file of content data in a storage medium or may receive content data from an external content source.
  • the image source device 20 may decode content data to convert content data stored in a storage medium or received from an external content source into image frame data.
  • the content data may be compressed according to a video compression standard such as MPEG (Moving Picture Experts Group), HEVC (High Efficiency Video Coding), etc., and the image source device 20 extracts each image frame from the compressed content data.
  • the displayed image frame data can be restored.
  • the image source device 20 may transmit image frame data to the video wall 10.
  • the image source device 20 may transmit image frame data to the video wall 10 through separate image data transmission lines, respectively.
  • the video wall 10 may be a large format display (LFD) installed outdoors, such as on the roof of a building or at a bus stop.
  • LFD large format display
  • the outdoors is not necessarily limited to outdoors, and the video wall 10 according to an exemplary embodiment may be installed in a place where a large number of people can enter, even if indoors, such as a subway station, a shopping mall, a movie theater, a company, or a store.
  • the video wall 10 may include a plurality of display devices 101 to 109 arranged in alignment with rows and columns.
  • the plurality of display devices 101 to 109 may be arranged in a matrix form.
  • a plurality of display devices 101 to 109 may be arranged in a matrix form of 3 rows and 3 columns.
  • the video wall 10 including the plurality of display devices 101 to 109 may integrally form one screen S.
  • the video wall 10 may integrally display one image.
  • the video wall 10 may display a part of an image displayed on the entire screen S.
  • the video wall 10 may occupy a part of the screen S according to its arrangement, and may output different parts of the entire image according to the arrangement.
  • the video wall 10 may receive image frame data from the image source device 20 through image data transmission lines, and may display an image corresponding to the received image frame data.
  • the image source device 20 may transmit image frame data of the entire image to the video wall 10.
  • the image source device 20 may transmit image frame data to the video wall 10 in parallel or serially.
  • the image frame data may be sequentially transmitted from the image source device 20 to the plurality of display devices 100 to 108 via another display device.
  • the image frame data output from the image source device 20 is received by the first display device 101, received by the second display device 102 through the first display device 101, and the second It may be received by the third display device 103 via the display device 102.
  • the image frame data may be received by the first to ninth display devices 101 to 109 through the first to ninth display devices 101 to 109, respectively.
  • the first to ninth display devices 101 to 109 extract part of the image frame data of the entire image according to their respective positions, and display an image (a part of the entire image) corresponding to the extracted part of the image frame data. I can.
  • the first to ninth display devices 101 to 109 each store a unique identification number according to a location, and may extract some of the image frame data of the entire image based on the unique identification number.
  • the display device 101 located in the first column and the first row may store a unique identification number '11'.
  • the display device 101 of one column and one row divides the entire image into 9 areas, 3 horizontally and 3 vertically, according to the unique identification number '11', and extracts the image frame data of the upper left area among the 9 areas. can do.
  • the display device 101 in one column and one row may display an image corresponding to the image frame data in the upper left region. In this way, each of the first to ninth display devices 101 to 109 can display a part of an image, and is integrated by a combination of images output by each of the first to ninth display devices 101 to 109. One image may be displayed.
  • Each of the plurality of display devices 100 to 109 is a device capable of processing an image signal and visually displaying the processed image.
  • Each of the plurality of display devices 100 to 108 can be implemented in various forms such as a television (TV), a monitor, a portable multimedia device, a portable communication device, and a portable computing device, and a device that visually displays an image.
  • the form of ramen is not limited.
  • each of the plurality of display devices 101 to 109 receives video signals and audio signals (hereinafter referred to as'video/audio signals') from various content sources, and receives video and audio corresponding to the video/audio signals. Can be printed.
  • the display device 100 may receive TV broadcast content through a broadcast reception antenna or a wired cable, receive content from a content playback device, or receive content from a content providing server of a content provider.
  • the display device 100 which is one of the plurality of display devices 101 to 109, includes a main body 100a accommodating a plurality of parts for displaying an image, and is provided on one side of the main body 100a to provide an image (I). It may include a screen (100b) that displays a part of.
  • the first to ninth display devices 101 to 108 may be the same as the display device 100.
  • the main body 100a forms the outer shape of the display apparatus 100, and a component for the display apparatus 100 to display the image I may be provided inside the main body 100a.
  • the main body 100a illustrated in FIG. 1 has a flat plate shape, but the shape of the main body 100a is not limited to that illustrated in FIG. 1.
  • the body 100a may have a shape in which the left and right ends protrude forward and the center portion is curved to be concave.
  • the screen 100b is formed on the front surface of the main body 100a, and an image I, which is visual information, may be displayed on the screen 100b.
  • an image I which is visual information
  • a still image or a moving image may be displayed on the screen 100b, and a 2D planar image or a 3D stereoscopic image may be displayed.
  • a plurality of pixels P are formed on the screen 100b, and an image I displayed on the screen 100b may be formed by a combination of light emitted from the plurality of pixels P.
  • a single image I may be formed on the screen 100b by combining light emitted by the plurality of pixels P like a mosaic.
  • Each of the plurality of pixels P may emit light of various brightnesses and colors.
  • each of the plurality of pixels P includes a configuration capable of emitting light directly (for example, a light emitting diode or an organic light emitting diode) or transmits light emitted by a backlight unit. It may include a configuration capable of blocking or blocking (for example, a backlight unit and a liquid crystal panel).
  • each of the plurality of pixels P may include sub-pixels P R , P G , and P B.
  • the sub-pixels (P R , P G , P B ) emit red sub-pixels (P R ) that can emit red light, green sub-pixels (P G ) that can emit green light, and blue light. It may include a blue sub-pixel (P B ) capable of.
  • red light can represent light with a wavelength of approximately 620nm (nanometer, 1 billionth of a meter) to 750nm
  • green light can represent light with a wavelength of approximately 495nm to 570nm
  • blue light The wavelength can represent light from approximately 450 nm to 495 nm.
  • each of the plurality of pixels P has various brightness and various colors. Light can be emitted.
  • the screen 100b illustrated in FIG. 1 has a flat plate shape, but the shape of the screen 100b is not limited to that illustrated in FIG. 1.
  • the screen 100b may have a shape in which the left and right ends protrude forward and the center portion is curved to be concave.
  • the screen 100b is a liquid crystal display panel (LCD Panel), a light emitting diode panel (Light Emitting Diode Panel, LED Panel) or an organic light emitting diode panel (Organic Light Emitting Diode Panel, OLED Panel) of various types. It can be implemented by a display panel.
  • LCD Panel liquid crystal display panel
  • LED Panel Light Emitting Diode Panel
  • OLED Panel Organic Light Emitting Diode Panel
  • FIG. 2 illustrates a configuration of a display device according to an exemplary embodiment.
  • 3 is a diagram illustrating a connection relationship between a display system according to an exemplary embodiment.
  • 4 illustrates a configuration of a transmission/reception connector bundle included in a display device according to an exemplary embodiment.
  • 5 illustrates a configuration of a transmission/reception connector bundle included in a display device according to another embodiment.
  • 6 illustrates a configuration of a multiplexer included in a display device according to an exemplary embodiment.
  • the display device 100 of the video wall 10 is described, but the configuration and operation of all the display devices 101 to 109 constituting the video wall 10 are the display device 100 Can be the same as
  • the display device 100 includes a user input unit 110 receiving a user input from a user, a content receiving unit 120 receiving a video signal and/or an audio signal from the image source device 20, and an image source device 20 And/or the communication unit 130 communicating with an external device and controlling the operation of the display device 100, and processing a video signal and/or an audio signal received by the content receiving unit 120 and/or the communication unit 130 A control unit 140 to perform, an image display unit 150 to display an image processed by the control unit 140, an audio output unit 160 to output sound processed by the control unit 140, and a display device 100 ) And a power supply unit 170 for supplying power to the components.
  • the user input unit 110 may include an input button group 111 for receiving a user input.
  • the user input unit 110 outputs a power button for turning on or off the display device 100, a channel selection button for selecting broadcast content displayed on the display device 100, and the display device 100 It may include a sound control button for adjusting the volume of sound to be played, a source selection button for selecting a content source, and the like.
  • the input button groups 111 may each receive a user input and output an electrical signal corresponding to the user input to the control unit 140, and may be provided by various input means such as a push switch, a touch switch, a dial, a slide switch, and a toggle switch. Can be implemented.
  • the user input unit 110 also includes a signal receiver 112 that receives a remote control signal from the remote controller 112a.
  • the remote controller 112a for receiving a user input may be provided separately from the display apparatus 100, and may receive a user input and transmit a wireless signal corresponding to the user input to the display apparatus 100.
  • the signal receiver 112 may receive a wireless signal corresponding to a user input from the remote controller 112a and output an electrical signal corresponding to the user input to the controller 140.
  • the content receiving unit 120 includes a transmission/reception connector bundle 200 for receiving image frame data from the image source device 20 and/or other display devices 101 to 109 and a tuner 122 for tuning a broadcast signal. ) Can be included.
  • the display device 100 may be connected to the image source device 20 and/or other display devices 101 to 109 through the transmission/reception connector bundle 200.
  • the first display device 101 may be connected to the image source device 20 through the transmission/reception connector bundle 200.
  • the first display device 101 is connected to the second display device 102 through a second transmission/reception connector bundle (not shown), and the second display device 102 is provided through a first transmission/reception connector bundle (not shown). It may be connected to the first and third display devices 101 and 103.
  • the third display device 103 is connected to the second and fourth display devices 102 and 104
  • the fourth display device 104 is connected to the third and fifth display devices 103 and 105.
  • the fifth display device 105 is connected to the fourth and sixth display devices 104 and 106
  • the sixth display device 106 is connected to the fifth and seventh display devices 105, 107, and
  • the seventh display device 107 may be connected to the sixth and eighth display devices 106 and 108
  • the eighth display device 108 may be connected to the seventh and ninth display devices 107 and 109.
  • the display device 100 receives image frame data from the image source device 20 and/or another display device through the transmit/receive connector bundle 200, and transmit image frame data to another display device through the transmit/receive connector bundle 200. Can be transmitted.
  • the display device 100 may be any one of the first to ninth display devices 101 to 109.
  • the first display device 101 may receive image frame data from the image source device 20 through a second transmission/reception connector bundle (not shown).
  • the second display device 102 may receive image frame data of the image source device 20 from the first display device 101 through a first transmission/reception connector bundle (not shown), and the third display device 103 May receive image frame data of the image source device 20 from the second display device 102 through the third transceiving connector bundle 203.
  • the fourth display device 104 receives image frame data from the third display device 103
  • the fifth display device 105 receives image frame data from the fourth display device 104
  • the sixth display device 106 receives image frame data from the fifth display device 105
  • the seventh display device 107 receives image frame data from the sixth display device 106
  • the eighth display device 108 may receive image frame data from the seventh display device 107
  • the ninth display device 109 may receive image frame data from the eighth display device 108.
  • the transceiver connector bundle 200 includes a component (YPbPr/RGB) terminal, a composite (composite video blanking and sync, CVBS) terminal, an audio terminal, a High Definition Multimedia Interface (HDMI) terminal, a digital visual interface (Digital). It may include a Visual Interface (DVI) terminal, a Video Graphics Array (VGA) terminal, a Universal Serial Bus (USB) terminal, and the like.
  • a component YPbPr/RGB
  • CVBS composite (composite video blanking and sync
  • HDMI High Definition Multimedia Interface
  • Digital digital visual interface
  • DVI Visual Interface
  • VGA Video Graphics Array
  • USB Universal Serial Bus
  • the transmission/reception connector bundle 200 includes a second transmission/reception connector 210, a first transmission/reception connector 220, a multiplexer 240, and a distribution unit ( splitter) 250.
  • the transmission/reception connector bundle 200 includes a second transmission/reception connector 210, a first transmission/reception connector 220, a third transmission/reception connector 230, and a multiplexer ( 240) and a distribution unit (splitter) 250 may be included.
  • the second transmission/reception connector 210 and the first transmission/reception connector 220 are respectively connected to one of the other display devices 101 to 109 through an image transmission cable, or to any one of the image source devices 20 and an image transmission cable. It can be connected through.
  • two of the first to third transmission/reception connectors 210 to 230 are connected to any one of the other display devices 101 to 109 through an image transmission cable, or to transmit an image to any one of the image source devices 20 It can be connected via a cable.
  • the third transmission/reception connector 230 is additionally provided together with the second transmission/reception connector 210 and the first transmission/reception connector 220 and corresponds to a terminal capable of receiving or transmitting image frame data.
  • the second transmission/reception connector 210 and the first transmission/reception connector 220 may provide a data path through which image frame data is transmitted and received from the different display devices 101 to 109 and/or the image source device 20, respectively.
  • the display device 100 receives image frame data from the image source device 20 through the first transmit/receive connector 220 and transmits an image to the second display device 102 through the second transmit/receive connector 210.
  • the frame data is output, or the display device 100 receives image frame data from the image source device 20 through the second transmission/reception connector 210 and the second display device 102 through the first transmission/reception connector 220. ) To output video frame data.
  • Each of the second transmission/reception connector 210 and the first transmission/reception connector 220 may include a plurality of pins.
  • the second transmission/reception connector 210 and the first transmission/reception connector 220 may each include a component (YPbPr) terminal, and the second transmission/reception connector 210 and the first transmission/reception connector 220 may each include 3 It may contain four pins.
  • Each of the first and first transmission/reception connectors 210 and 220 may include a composite (CVBS) terminal, and each of the second transmission/reception connector 210 and the first transmission/reception connector 220 may include one pin. .
  • CVBS composite
  • Each of the second transmission/reception connector 210 and the first transmission/reception connector 220 may include a high-definition multimedia interface (HDMI) terminal, and the second transmission/reception connector 210 and the first transmission/reception connector 220 each have 19 pins. It may include.
  • Each of the second transmission/reception connector 210 and the first transmission/reception connector 220 may include a digital visual interface (DVI) terminal, and the second transmission/reception connector 210 and the first transmission/reception connector 220 each have 24 pins. It may include.
  • HDMI high-definition multimedia interface
  • DVI digital visual interface
  • Each of the second transmission/reception connector 210 and the first transmission/reception connector 220 may include a video graphic array (VGA) terminal terminal, and each of the second transmission/reception connector 210 and the first transmission/reception connector 220 May contain pins.
  • VGA video graphic array
  • the third transmission/reception connector 230 of FIG. 5 has been described, the description of the third transmission/reception connector 230 also relates to the above-described second transmission/reception connector 210 and the first transmission/reception connector 220. Can be understood with explanation.
  • the multiplexer 240 transmits the image frame data received through the first transmission/reception connector 220 to the distribution unit 250 according to the control signal of the controller 140 or the first transmission/reception connector 220. Image frame data may be transmitted to the controller 140.
  • the multiplexer 240 includes a first terminal T1 connected to the first transmission/reception connector 220 and a second terminal T2 directly connected to the control unit 140. And, a third terminal T3 and a fourth terminal T4 connected to the distribution unit 250 and a selection terminal SEL connected to the control unit 140 may be included.
  • the multiplexer 240 includes a first terminal T1 connected to the first transmission/reception connector 220 and a third transmission/reception connector 230 and the control unit 140.
  • a second terminal (T2) connected to the node (N) located at, a third terminal (T3) and a fourth terminal (T4) connected to the distribution unit 250, and a selection terminal (SEL) connected to the control unit 140 Can include.
  • the multiplexer 240 connects the first terminal T1 to the third terminal T3 or connects the first terminal T1 according to a control signal from the controller 140 received through the selection terminal SEL. It can be connected to the 2nd terminal (T2) and the 4th terminal (T4). For example, when a first selection signal is received from the control unit 140 through the selection terminal SEL, the multiplexer 240 connects the first terminal T1 to the third terminal T3, and It is possible to prevent (T1) from being connected to the second terminal (T2) and the fourth terminal (T4). In addition, the multiplexer 240 connects the first terminal T1 to the second terminal T2 and the fourth terminal T4 when a second selection signal is received from the control unit 140 through the selection terminal SEL. And, it is possible to prevent the first terminal T1 from being connected to the third terminal T3.
  • the first selection signal may be a normal signal of the distribution unit 250
  • the second selection signal may be an abnormal signal of the distribution unit 250.
  • the multiplexer 240 may receive a signal, separate (or copy) the received signal into two identical signals, and output the two separated (or copied) signals, respectively. Specifically, the multiplexer 240 receives image frame data from the second transmission/reception connector 220 through the first terminal T1, and separates (or copies) the image frame data into two image frame data, Two image frame data may be output to the control unit 140 and the second transmission/reception connector 210, respectively. In this case, each of the two image frames may be output to the control unit 140 through the second terminal T2 and may be output to the second transmission/reception connector T4 through the fourth terminal T4. Accordingly, when an error occurs in the distribution unit 250, the multiplexer 240 may provide a bypass path for allowing the image frame data to bypass the distribution unit 250.
  • the multiplexer 240 illustrated in FIG. 6 may include a first switch 241, a second switch 242, a third switch 243, and an inverter 244.
  • the first switch 241 to the third switch 243 are controlled to allow or block a signal path between the first signal terminal (SG1) and the second signal terminal (SG2), respectively, forming a signal path through which an electrical signal is transmitted. It may include a terminal (CON).
  • the first switch 241 is provided between the first terminal T1 and the second terminal T2, and is connected to the first terminal T1 according to a control signal from the controller 140 received through the selection terminal SEL. Transmission of signals between the second terminals T2 may be allowed or blocked. Specifically, the first signal terminal SG1 of the first switch 241 is connected to the first terminal T1, and the second signal terminal SG2 of the first switch 241 is connected to the second terminal T2. It is connected, and the control terminal CON may be connected to the selection terminal SEL.
  • the second switch 242 is provided between the first terminal T1 and the third terminal T3, and is connected to the first terminal T1 according to a control signal from the controller 140 received through the selection terminal SEL. Transmission of signals between the third terminals T3 may be allowed or blocked. Specifically, the first signal terminal SG1 of the second switch 242 is connected to the first terminal T1, the second signal terminal SG2 is connected to the third terminal T3, and the control terminal CON ) May be connected to the selection terminal SEL through the inverter 244.
  • the inverter 244 may convert the control signal of the control unit 140 received through the selection terminal SEL into an opposite signal. For example, when a first selection signal is received from the control unit 140 through the selection terminal SEL, the inverter 244 outputs a second selection signal, and a second selection signal is received from the control unit 140 through the selection terminal SEL. When the selection signal is received, the inverter 244 may output a first selection signal.
  • the third switch 243 is provided between the first terminal T1 and the fourth terminal T4, and is connected to the first terminal T1 according to the control signal of the controller 140 received through the selection terminal SEL. Transmission of signals between the fourth terminals T4 may be allowed or blocked. Specifically, the first signal terminal SG1 of the third switch 243 is connected to the first terminal T1, the second signal terminal SG2 is connected to the fourth terminal T4, and the control terminal CON May be connected to the selection terminal SEL.
  • Each of the first to third switches 241 to 243 may use a transistor that opens and closes a signal path according to an electrical signal.
  • the first switch 241 to the third switch 243 may employ a Metal Oxide Semiconductor Field Effect Transistor (MOSFET) (hereinafter referred to as “MOSFET”).
  • MOSFET Metal Oxide Semiconductor Field Effect Transistor
  • the first switch 241 to the third switch 243 may all use the same type of MOSFET.
  • the first switch 241 to the third switch 243 may all use an N-channel MOSFET, or all of the switches 231, 232, 233, and 234 may use a P-channel MOSFET.
  • the inverter 244 may be omitted because different types of MOSFETs are used for the first switch 241 to the third switch 243.
  • the multiplexer 240 includes a plurality of first terminals T1, a plurality of second terminals T2, and a plurality of terminals according to the types of the second transmission/reception connector 210 and the first transmission/reception connector 220. It may include third terminals T3 and a plurality of fourth terminals T4. In addition, the multiplexer 240 includes a plurality of first switches 241, a plurality of second switches 242, and a plurality of A third switch 243 and a plurality of inverters 244 may be included.
  • the second transmission/reception connector 210 and the first transmission/reception connector 220 may each include a high definition multimedia interface (HDMI) terminal, and the multiplexer 240 includes 19 first terminals T1 And, 19 second terminals (T2), 19 third terminals (T3), and 19 fourth terminals (T4) may be included, and the multiplexer 240 may also include 19 second terminals (T2), 19 third terminals (T3), and 19 fourth terminals (T4).
  • Includes 1 switches 241, 19 second switches 242, 19 third switches 243, 19 fourth switches 244, and 19 inverters 244 can do.
  • Each of the 19 first terminals T1 may be connected to the 19 third terminals T3 in response to the first selection signal of the controller 140.
  • the 19 first terminals T1 are respectively connected to the 19 second terminals T2, and the 19 first terminals T1 are each 19 It may be connected to the fourth terminals T4.
  • the splitter 250 may receive a signal, separate (or copy) the received signal into two identical signals, and output the two separated (or copied) signals, respectively.
  • the distribution unit 240 receives image frame data from the multiplexer 240 through the third terminal T3, separates (or copies) the image frame data into two image frame data, and Image frame data may be output to the control unit 140 and the second transmission/reception connector 210, respectively.
  • the distribution unit 250 includes a first input terminal IN1 connected to the third terminal T3 of the multiplexer 240, a first output terminal OUT1 connected to the controller 140, and a multiplexer 240. ) And a second output terminal OUT2 connected to the second transmission/reception connector 210.
  • the distribution unit 240 separates (or copies) the image frame data received through the first input terminal IN1 into two identical image frame data, and transmits any one of the two image frame data to the first output terminal OUT1.
  • the image frame data output to the controller 140 through the first output terminal OUT1 may be processed by the controller 140, and a part of the image corresponding to the image frame data may be displayed on the display device 100. have.
  • the image frame data output through the second output terminal OUT2 may be output to the second display device 102 through the second transmission/reception connector 210.
  • the distribution unit 250 includes a plurality of first input terminals IN1, a plurality of first output terminals OUT1, and a plurality of second transmission/reception connectors according to types of the second transmission/reception connector 210 and the first transmission/reception connector 220. It may include two output terminals OUT2.
  • the second transmission/reception connector 210 and the first transmission/reception connector 220 may each include a high-definition multimedia interface (HDMI) terminal, and the distribution unit 250 includes 19 first input terminals IN1 and , 19 first output terminals OUT1 and 19 second output terminals OUT2 may be included.
  • HDMI high-definition multimedia interface
  • the distribution unit 250 separates (or copies) 19 data received through the 19 first input terminals IN1, and transmits the separated 19 data through the first output terminal OUT1. ), and the separated 19 pieces of data may be output to the second transmission/reception connector 210 through the second output terminal OUT2.
  • the first display device 101 may be connected to the image source device 20 and the second to ninth display devices 102 to 109 through the transmission/reception connector bundle 200.
  • the image frame data is received from the image source device 20 through the first transmission/reception connector 220 in response to the first selection signal of the controller 140, and the distribution unit 250 by the multiplexer 240 ) Can be delivered.
  • the image frame data is separated (or copied) into two identical image frame data by the distribution unit 250, and any one of the two image frame data is processed by the controller 140, and the other of the two image frame data One may be output to the second display device 102 through the second transmission/reception connector 210.
  • the image frame data is received from the image source device 20 through the first transmission/reception connector 220 in response to the second selection signal of the controller 140, and the image frame data is a multiplexer according to the second selection signal.
  • the image frame data is separated (or copied) into two identical image frame data by the distribution unit 250, and any one of the two image frame data is processed by the controller 140, and the other of the two image frame data One may be output to the second display device 102 through the second transmission/reception connector 210.
  • the tuner 122 may receive a broadcast signal from a broadcast reception antenna or a wired cable, and extract a broadcast signal of a channel selected by a user from among the broadcast signals. For example, the tuner 122 may pass a broadcast signal having a frequency corresponding to a channel selected by a user among a plurality of broadcast signals received through a broadcast reception antenna or a wired cable, and block broadcast signals having different frequencies. have.
  • the content receiving unit 120 may receive image frame data and/or video/audio signals through the transmission/reception connector bundle 200 and/or the tuner 122, and the transmission/reception connector bundle 200 and/or the tuner ( The image frame data and/or video/audio signals received through 122 may be output to the controller 140.
  • the communication unit 130 may communicate with the image source device 20 and/or an external device.
  • the communication unit 130 may receive a video/audio signal from the image source device 20.
  • the communication unit 130 may include a wired communication module 131 and a wireless communication module 132 capable of exchanging data with the image source device 20 and/or an external device.
  • the wired communication module 131 may connect to a communication network through a cable and exchange data with the image source device 20 and/or an external device through the communication network.
  • the wired communication module 131 may connect to a communication network through Ethernet (Ethernet, IEEE 802.3 technology standard), and may exchange data with the image source device 20 and/or an external device through the communication network.
  • Ethernet Ethernet, IEEE 802.3 technology standard
  • the wireless communication module 132 may wirelessly communicate with an access point (AP), access the communication network through the access point (AP), and the first and second image source devices 20 and 30 and/or Data can be exchanged with external devices.
  • the wireless communication module 132 is accessed through Wi-Fi (WiFi, IEEE 802.11 technology standard), Bluetooth (Bluetooth, IEEE 802.15.1 technology standard), and ZigBee (ZigBee, IEEE 802.15.4 technology standard). It can communicate with the point AP, and can exchange data with the image source device 20 and/or an external device through the access point AP.
  • the communication unit 130 may receive image frame data from the image source device 20 through a communication network.
  • the controller 140 may process image frame data and/or video/audio signals received by the content receiving unit 120 and/or the communication unit 130. For example, the control unit 140 may output the image frame data received from the content receiving unit 120 to the image display unit 150. In addition, the control unit 140 processes the video/audio signal received by the content receiving unit 120 and/or the communication unit 130, and outputs the image frame data generated from the video/audio signal to the image display unit 150. I can.
  • the controller 140 may control the operation of the content receiving unit 120, the image display unit 150, and the sound output unit 160 according to an operation state of the display apparatus 100 and/or a user input. For example, when a content source is selected according to a user input, the controller 140 may control the content receiving unit 120 to receive image frame data from the selected content source. In addition, when image frame data is not received through the content receiving unit 120, the controller 140 may control the content receiving unit 120 to receive image frame data from another content source.
  • the controller 140 may output a selection signal for selecting a source for receiving image frame data to the transmission/reception connector bundle 200 of the content receiving unit 120.
  • the control unit 140 may include a microprocessor 141 and a memory 142.
  • the memory 142 may store image frame data and/or programs and data for processing video/audio signals, and may temporarily store data issued while processing image frame data and/or video/audio signals.
  • the memory 142 may store programs and data for controlling components included in the display apparatus 100 and temporarily store data issued while controlling the components included in the display apparatus 100.
  • the memory 142 includes a nonvolatile memory such as a ROM (Read Only Memory) and a flash memory for storing data for a long time, and a static random access memory (S-RAM) and D-RAM for temporarily storing data. It may include a volatile memory such as a dynamic random access memory (RAM).
  • ROM Read Only Memory
  • S-RAM static random access memory
  • D-RAM dynamic random access memory
  • the microprocessor 141 may receive image frame data and/or a video/audio signal from the content receiving unit 120 and/or the communication unit 130.
  • the microprocessor 141 may output the image frame data received from the content receiving unit 120 to the image display unit 150 and the sound output unit 160.
  • the microprocessor 141 decodes a video signal to generate image frame data, decodes an audio signal and generates sound data, and transmits image frame data and sound data to the image display unit 150 and the sound output unit, respectively. It can be output as (160).
  • the microprocessor 141 receives a user input from the user input unit 110 and controls the content receiving unit 120 and/or the image display unit 150 and/or the sound output unit 160 according to the user input. Can be created. In addition, the microprocessor 141 may generate a control signal for controlling an operation of the content receiving unit 120 according to whether image frame data is received through the content receiving unit 120.
  • the microprocessor 141 may include an arithmetic circuit for performing logical operations and arithmetic operations, and a memory circuit for storing calculated data.
  • the image display unit 150 includes a display panel 142 for visually displaying an image and a display driver 141 for driving the display panel 142.
  • the display panel 142 may generate an image according to the image data received from the display driver 141 and display the image.
  • the display panel 142 may include pixels serving as a unit for displaying an image. Each pixel may receive an electrical signal representing an image from the display driver 141 and may output an optical signal corresponding to the received electrical signal. In this way, one image may be displayed on the display panel 142 by combining optical signals output from a plurality of pixels.
  • the display driver 141 may receive image data from the controller 140 and drive the display panel 142 to display an image corresponding to the received image data. Specifically, the display driver 141 may transmit an electrical signal corresponding to image data to each of a plurality of pixels constituting the display panel 142.
  • each pixel When the display driver 141 transmits an electrical signal corresponding to the image data to each pixel constituting the display panel 142, each pixel outputs light corresponding to the received electrical signal, and each pixel outputs light.
  • the lights can be combined to form a single image.
  • the sound output unit 160 includes an amplifier 161 that amplifies sound and a speaker 162 that aurally outputs the amplified sound.
  • the controller 140 may convert sound data decoded from the audio signal into an analog sound signal, and the amplifier 161 may amplify the analog sound signal output from the controller 140.
  • the speaker 162 may convert the analog sound signal amplified by the amplifier 181 into sound (sound wave).
  • the speaker 182 may include a thin film that vibrates according to an electrical sound signal, and a sound wave may be generated by the vibration of the thin film.
  • the power supply unit 170 supplies power to the user input unit 110, the content receiving unit 120, the communication unit 130, the control unit 140, the image display unit 150, the sound output unit 160, and all other components. I can.
  • the power supply unit 170 includes a switching mode power supply 171 (hereinafter referred to as'SMPS').
  • the SMPS 171 may include an AC-DC converter that converts AC power of an external power source into DC power, and a DC-DC converter that changes a voltage of DC power.
  • AC power of an external power source is converted into DC power by an AC-DC converter, and the voltage of DC power can be changed to various voltages (e.g., 5V and/or 15V) by a DC-DC converter.
  • the DC power whose voltage is changed may be supplied to the user input unit 110, the content receiving unit 120, the control unit 140, the image display unit 150, the sound output unit 160, and all other components, respectively.
  • the display device 100 may be connected to the image source device 20 and the first to ninth display devices 101 to 109 through the transmission/reception connector bundle 200.
  • the transmission/reception connector bundle 200 may include a multiplexer 240 for bypassing the movement of image frame data with respect to the distribution unit 250, and the multiplexer 240 is selected by the control unit 140
  • the image frame data may be output to the third terminal T3 or the second terminal T2 and the fourth terminal T4 according to the signal.
  • Each of the first to ninth display devices 101 to 109 may perform the same configuration and operation as the display device 100.
  • FIG. 7 is a flowchart illustrating a control operation of a display device according to an exemplary embodiment.
  • this is only a preferred embodiment for achieving the object of the present invention, and of course, some steps may be added or deleted as necessary.
  • the present embodiment is described based on the first display device 101 and the second display device 102, it can be applied to all of the first to ninth display devices 101 to 109.
  • the controller 140 detects an abnormal signal from the distribution unit 250 included in the first display device (7010).
  • the controller 140 determines that no abnormality has occurred in the distribution unit 250 (7020)
  • the controller 140 controls the content data to be separated into a plurality of content data through the distribution unit 250 (7030). .
  • the controller 140 controls one of the plurality of content data to be output to the controller 140, and controls the other one of the plurality of content data to be output to the second transmission/reception connector 220.
  • Steps 7030 to 7040 will be described in more detail with reference to FIGS. 8 and 9.
  • 8 shows the flow of content data during normal operation of the distribution unit.
  • 9 shows the operation of the multiplexer in the case of FIG. 8.
  • control unit 140 When there is no abnormality in the distribution unit 250, the control unit 140 does not need to bypass the movement of the content data by the multiplexer 240, and thus controls the input/output of the content data to be performed by the distribution unit 250 can do.
  • the multiplexer 240 connects the first terminal T1 to the third terminal T3, and It is possible to prevent (T1) from being connected to the second terminal (T2) and the fourth terminal (T4). Accordingly, the distribution unit 250 receives content data through the first input terminal, separates (or copies) the received content data into two identical content data, and selects any one of the two content data into a first output terminal. Output to the control unit 140 through (OUT1).
  • step 7020 the operation of the control unit 140 when an abnormality occurs in the distribution unit 250 will be described.
  • Steps 7050 to 7070 will be described in more detail with reference to FIGS. 10 to 12.
  • 10 and 11 illustrate the flow of content data when the distribution unit malfunctions.
  • 12 shows the operation of the multiplexer in the case of FIGS. 10 and 11.
  • the control unit 140 controls the movement of the content data to bypass the distribution unit 250 (7050).
  • the multiplexer 240 blocks the connection between the first terminal T1 and the third terminal T3, and T1) is not connected to the second terminal T2 and the fourth terminal T4. Accordingly, the multiplexer 240 allows the movement of content data to bypass the distribution unit 250 by blocking between the first terminal T1 and the third terminal T3, so that the bypassed content data is transferred to the second terminal ( It is output through T2) and the fourth terminal T4.
  • the control unit 140 controls the content data bypassed by the multiplexer 250 to be separated into a plurality of content data (7050).
  • the controller 140 controls one of the plurality of content data to be output to the controller 140 and the other of the plurality of content data to be output to the second transmission/reception connector 220.
  • the content data output to the control unit 140 is output through the second terminal T2
  • the content data output through the second transmission/reception connector 220 is output through the fourth terminal T4.
  • the multiplexer 240 may output content data output through the second terminal T2 to the controller 140 through a data transmission line directly connected to the controller 140.
  • the multiplexer 240 transmits content data output through the second terminal T2 through a data transmission line connecting the third transmission/reception connector 230 and the control unit 140. It can be output to the control unit 140.
  • the second terminal T2 of the multiplexer 240 is connected to a node N located on a data transmission line connecting the third transmission/reception connector 230 and the control unit 140.
  • the content data output by the multiplexer 240 or the distribution unit 250 is output through the second transmission/reception connector 220, and the content data output through the second transmission/reception connector 220 is transmitted to the first display device ( 101) is transmitted to the second display device connected (7080).
  • FIG. 13 illustrates a connection relationship between display devices referenced in a display system according to an exemplary embodiment.
  • 14 illustrates a flow of content data in a display system according to an embodiment.
  • a connection relationship between the display apparatus 100 and a flow of content data will be described.
  • the 1-1 transmission/reception connector 210-1 of the first display device 101 is connected to the image source device 20 and receives content data from the image source device 20. .
  • the first control unit 140-1 of the first display device 101 receives the content data from the first distribution unit 250-1, and ,
  • the 2-1 transmission/reception connector 220-1 of the first display device 101 transmits the content data received from the first distribution unit 250-1 to the second display device 102.
  • the first control unit 140-1 of the first display device 101 receives content data from the first multiplexer 240-1, and , The 2-1 transmission/reception connector 220-1 of the first display device 101 transmits the content data received from the first multiplexer 240-1 to the second display device 102.
  • the content data transmission process is also applied to the third display device 103, the fourth display device 104, the fifth display device 105, and other display devices (not shown) connected thereafter.
  • FIG. 14 shows a flow of content data in a display system configured according to the above-described connection relationship.
  • the content data transmission method may be applied to a serial connection method in which a plurality of display devices are connected in a single direction, that is, a loop-out method.
  • an abnormality may occur in a splitter, which is a configuration of a display device, due to various factors such as external impact.
  • the display system may be configured by the third display device 103 to the ninth display device 109 due to the nature of the loop-out method. Does not receive content data.
  • the content data is transmitted by bypassing the second multiplexer 240-2 to the second distribution unit 250-2. It is possible to respond to loop-out errors without any action.
  • the display system may include a plurality of display devices connected in series with the image source device 20 and receiving content data from the image source device 20 in a predetermined order.
  • the predetermined order may be an order from the image source device 20 toward the ninth display device 109 as shown in FIG. 14.
  • at least one of the plurality of displays may be a display device including the multiplexer 240 according to the disclosed invention, and the multiplexer 240 is provided throughout the first to ninth display devices 101 to 109.
  • a display device connected last based on a predetermined order among a plurality of display devices may not include at least one of a distribution unit and a multiplexer. This is because the display device that finally receives the content data does not need to output the content data to the outside again.
  • the disclosed embodiments may be implemented in the form of a recording medium storing instructions executable by a computer.
  • the instruction may be stored in the form of a program code, and when executed by a processor, a program module may be generated to perform the operation of the disclosed embodiments.
  • the recording medium may be implemented as a computer-readable recording medium.
  • Computer-readable recording media include all types of recording media in which instructions that can be read by a computer are stored. For example, there may be read only memory (ROM), random access memory (RAM), magnetic tape, magnetic disk, flash memory, optical data storage device, and the like.
  • ROM read only memory
  • RAM random access memory
  • magnetic tape magnetic tape
  • magnetic disk magnetic disk
  • flash memory optical data storage device

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

Un aspect de l'invention concerne un dispositif d'affichage, qui comprend : une unité d'affichage d'image ; un premier connecteur d'émission/réception pour recevoir des données de contenu en provenance d'un dispositif externe ; un second connecteur d'émission/réception pour délivrer les données de contenu vers l'extérieur ; une unité de commande pour commander à l'unité d'affichage d'image d'afficher une image correspondant aux données de contenu ; une unité de distribution pour transmettre les données de contenu à l'unité de commande ; et un multiplexeur pour délivrer en sortie les données de contenu reçues du premier connecteur d'émission/réception à au moins l'un parmi l'unité de commande, l'unité de distribution et le second connecteur d'émission/réception. Lorsque l'unité de commande détecte un signal anormal dans l'unité de distribution, l'unité de commande commande au multiplexeur de délivrer les données de contenu à l'unité de commande et au second connecteur d'émission/réception.
PCT/KR2020/010517 2019-09-11 2020-08-10 Dispositif d'affichage et système d'affichage WO2021049765A1 (fr)

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KR20190048424A (ko) * 2017-10-31 2019-05-09 삼성전자주식회사 디스플레이 장치 및 디스플레이 시스템

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