WO2020222389A1 - Dispositif d'affichage - Google Patents

Dispositif d'affichage Download PDF

Info

Publication number
WO2020222389A1
WO2020222389A1 PCT/KR2019/017348 KR2019017348W WO2020222389A1 WO 2020222389 A1 WO2020222389 A1 WO 2020222389A1 KR 2019017348 W KR2019017348 W KR 2019017348W WO 2020222389 A1 WO2020222389 A1 WO 2020222389A1
Authority
WO
WIPO (PCT)
Prior art keywords
hdmi
pin
display device
signal
input port
Prior art date
Application number
PCT/KR2019/017348
Other languages
English (en)
Korean (ko)
Inventor
송충원
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
Publication of WO2020222389A1 publication Critical patent/WO2020222389A1/fr

Links

Images

Classifications

    • 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 or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
    • H04N21/43632—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network involving a wired protocol, e.g. IEEE 1394
    • H04N21/43635—HDMI
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/60—Contacts spaced along planar side wall transverse to longitudinal axis of engagement
    • 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 or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2107/00—Four or more poles

Definitions

  • the present invention relates to a display device, and more particularly, to a display device for receiving a signal through HDMI.
  • Display devices such as TVs, monitors, and notebook computers may include an HDMI port to which HDMI is connected.
  • HDMI stands for High Definition Multimedia Interface and stands for High Definition Multimedia Interface.
  • HDMI is one of the uncompressed digital video/audio interface standards, and provides an interface between a display device (playback device) and source devices such as a set-top box and a DVD player.
  • the display device may receive an HDMI signal from a source device through HDMI and output video and audio.
  • HDMI defines standards for electrical signals, pin outputs, cables and connector mechanisms.
  • HDMI which is normally manufactured according to the standard, generally uses pins 2, 5, 8, 11, and 17 as ground (GND).
  • GND ground
  • some non-standard HDMI may use only pin 17 as a ground. In this case, if the display device does not use pin 17 as a ground, a GND path is not formed between the display device and the source device. There may be a problem that the image is not recognized. Meanwhile.
  • the non-standard HDMI cable using only pin 17 as a ground has been described above, but the non-standard HDMI cable uses only pins 17 and 11 as ground, or only pins 17, 11 and 8 as ground. , Pins 17, 11, 8, and 5 can be used as ground.
  • the display device needs a method of recognizing the source device even when non-standard HDMI is connected.
  • An object of the present invention is to provide a display device capable of recognizing a source device regardless of the standard of HDMI connected to an HDMI input port.
  • An object of the present invention is to provide a display device designed to form a GND path between a display device and a source device regardless of the standard of HDMI connected to an HDMI input port.
  • the display device includes an HDMI input port to which HDMI is connected, an HDMI receiver receiving an image signal from a source device through HDMI connected to the HDMI input port, and between at least one pin of the HDMI input port and a ground line. It may include a switch connected to.
  • the pin may be at least one of a pin to which a shield of HDMI is connected and a ground pin of an HDMI.
  • the pin may be at least one of pins 2, 5, 8, 11, and 17.
  • the display device may further include an external device sensing unit that obtains whether or not the source device is connected, and the switch may be connected to a signal line connecting the pin 17 of the HDMI input port and the external device sensing unit.
  • the switch may be turned on or off based on whether a signal is received from the source device.
  • a signal from the source device may include a signal received through pin 18 of the HDMI input port or a signal received through pin 19 of the HDMI input port.
  • the switch may be on when a signal is received from the source device and off when no signal is received from the source device.
  • the switch When the switch is turned on, the signal line and the ground line are energized, and when the switch is turned off, the signal line and the ground line may be cut off.
  • the switch may include a transistor in which a collector is connected to the pin, a base is connected to pin 18 of an HDMI input port, and an emitter is connected to a ground line.
  • the switch may include a transistor in which a collector is connected to the pin, a base is connected to pin 19 of an HDMI input port, and an emitter is connected to a ground line.
  • the ground line may be a line connecting the ground GND with at least one of pins 2, 5, 8, and 11 of the HDMI input port.
  • an HDMI signal can be normally received from a source device, thereby minimizing user inconvenience.
  • FIG. 1 is a block diagram illustrating a configuration of a display device according to an embodiment of the present invention.
  • FIG. 2 is a block diagram of a remote control device according to an embodiment of the present invention.
  • FIG 3 shows an example of the actual configuration of the remote control device 200 according to an embodiment of the present invention.
  • FIG. 4 shows an example of using a remote control device according to an embodiment of the present invention.
  • FIG. 5 is a diagram illustrating a state in which a display device according to an embodiment of the present invention is connected to a source device through HDMI.
  • FIG. 6 is a diagram illustrating a structure of an HDMI port according to an embodiment of the present invention.
  • FIG. 7 is a diagram illustrating a function of a pin provided in an HDMI port according to an embodiment of the present invention.
  • FIG. 8 is a diagram illustrating a state in which a source device and a display device are connected by HDMI according to the standard.
  • FIG. 9 is a diagram illustrating a connection between a source device and a display device through non-standard HDMI.
  • FIG. 10 is a diagram illustrating a display device according to a first embodiment of the present invention.
  • FIG. 11 is a diagram illustrating a display device according to a second exemplary embodiment of the present invention.
  • FIG. 1 is a block diagram illustrating a configuration of a display device according to an embodiment of the present invention.
  • the display device 100 includes a broadcast receiving unit 130, an external device interface unit 135, a storage unit 140, a user input interface unit 150, a control unit 170, and a wireless communication unit 173.
  • a display unit 180, an audio output unit 185, and a power supply unit 190 may be included.
  • the broadcast reception unit 130 may include a tuner 131, a demodulation unit 132, and a network interface unit 133.
  • the tuner 131 may select a specific broadcast channel according to a channel selection command.
  • the tuner 131 may receive a broadcast signal for a selected specific broadcast channel.
  • the demodulator 132 may divide the received broadcast signal into a video signal, an audio signal, and a data signal related to a broadcast program, and restore the separated video signal, audio signal, and data signal into a form capable of outputting.
  • the network interface unit 133 may provide an interface for connecting the display device 100 to a wired/wireless network including an Internet network.
  • the network interface unit 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.
  • the network interface unit 133 may access a predetermined web page through a connected network or another network linked to the connected network. That is, by accessing a predetermined web page through a network, the server and data can be transmitted or received.
  • the network interface unit 133 may receive content or data provided by a content provider or a network operator. That is, the network interface unit 133 may receive content such as movies, advertisements, games, VODs, broadcast signals, and related information provided from a content provider or a network provider through a network.
  • the network interface unit 133 may receive update information and an update file of firmware provided by a network operator, and transmit data to the Internet or content provider or network operator.
  • the network interface unit 133 may select and receive a desired application from among applications open to the public through a network.
  • the external device interface unit 135 may receive an application or an application list in an adjacent external device and transmit it to the control unit 170 or the storage unit 140.
  • the external device interface unit 135 may provide a connection path between the display device 100 and the external device.
  • the external device interface unit 135 may receive one or more of an image and audio output from an external device connected to the display device 100 by wire or wirelessly, and transmit it to the control unit 170.
  • the external device interface unit 135 may include a plurality of external input terminals.
  • the plurality of external input terminals may include an RGB terminal, one or more HDMI (High Definition Multimedia Interface) terminals, and a component terminal.
  • An image signal of an external device input through the external device interface unit 135 may be output through the display unit 180.
  • the audio signal of the external device input through the external device interface unit 135 may be output through the audio output unit 185.
  • the external device connectable to the external device interface unit 135 may be any one of a set-top box, a Blu-ray player, a DVD player, a game console, a sound bar, a smartphone, a PC, a USB memory, and a home theater, but this is only an example. .
  • some content data stored in the display apparatus 100 may be transmitted to another user registered in advance in the display apparatus 100 or a selected user or a selected electronic device among other electronic devices.
  • the storage unit 140 may store a program for processing and controlling each signal in the control unit 170 and may store signal-processed video, audio, or data signals.
  • the storage unit 140 may perform a function for temporary storage of a video, audio, or data signal input from the external device interface unit 135 or the network interface unit 133. You can also store information about the image.
  • the storage unit 140 may store an application or an application list input from the external device interface unit 135 or the network interface unit 133.
  • the display device 100 may reproduce and provide a content file (movie file, still image file, music file, document file, application file, etc.) stored in the storage unit 140 to a user.
  • a content file moving file, still image file, music file, document file, application file, etc.
  • the user input interface unit 150 may transmit a signal input by the user to the controller 170 or may transmit a signal from the controller 170 to the user.
  • the user input interface unit 150 may be configured according to various communication methods such as Bluetooth, Ultra Wideband (WB), ZigBee method, Radio Frequency (RF) communication method, or infrared (IR) communication method, Control signals such as power on/off, channel selection, and screen setting may be received and processed from the remote control device 200, or a control signal from the control unit 170 may be transmitted to the remote control device 200.
  • the user input interface unit 150 may transmit a control signal input from a local key (not shown) such as a power key, a channel key, a volume key, and a set value to the control unit 170.
  • a local key such as a power key, a channel key, a volume key, and a set value
  • the image signal processed by the controller 170 may be input to the display unit 180 and displayed as an image corresponding to the corresponding image signal. Also, the image signal processed by the controller 170 may be input to an external output device through the external device interface unit 135.
  • the audio signal processed by the controller 170 may be audio output to the audio output unit 185.
  • the voice signal processed by the control unit 170 may be input to an external output device through the external device interface unit 135.
  • controller 170 may control the overall operation of the display apparatus 100.
  • control unit 170 may control the display device 100 by a user command or an internal program input through the user input interface unit 150, and access the network to display an application or application list desired by the user. It can be downloaded within (100).
  • the control unit 170 enables channel information selected by the user to be output through the display unit 180 or the audio output unit 185 together with the processed image or audio signal.
  • control unit 170 in accordance with an external device image playback command received through the user input interface unit 150, from an external device input through the external device interface unit 135, for example, a camera or a camcorder, An image signal or an audio signal may be output through the display unit 180 or the audio output unit 185.
  • control unit 170 may control the display unit 180 to display an image, for example, a broadcast image input through the tuner 131 or an external input input through the external device interface unit 135
  • An image, an image input through the network interface unit, or an image stored in the storage unit 140 may be controlled to be displayed on the display unit 180.
  • the image displayed on the display unit 180 may be a still image or a moving image, and may be a 2D image or a 3D image.
  • control unit 170 may control content stored in the display device 100, received broadcast content, and external input content input from the outside to be played.
  • the content includes a broadcast image, an external input image, an audio file, It may be in various forms such as a still image, a connected web screen, and a document file.
  • the wireless communication unit 173 may communicate with an external device through wired or wireless communication.
  • the wireless communication unit 173 may perform short range communication with an external device.
  • the wireless communication unit 173 includes BluetoothTM, Bluetooth Low Energy (BLE), Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and NFC (Near Field Communication), Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, and Wireless Universal Serial Bus (USB) technologies may be used to support short-range communication.
  • the wireless communication unit 173 may be configured between the display device 100 and a wireless communication system, between the display device 100 and another display device 100, or between the display device 100 and the display device 100 through wireless area networks. Wireless communication between networks in which the display device 100 or an external server is located may be supported.
  • the local area wireless communication networks may be wireless personal area networks (Wireless Personal Area Networks).
  • the other display device 100 is a wearable device capable of exchanging (or interlocking with) data with the display device 100 according to the present invention, for example, a smartwatch, smart glasses. (smart glass), HMD (head mounted display)), it can be a mobile terminal such as a smart phone.
  • the wireless communication unit 173 may detect (or recognize) a wearable device capable of communicating around the display apparatus 100. Further, when the sensed wearable device is an authenticated device to communicate with the display apparatus 100 according to the present invention, the controller 170 transmits at least a portion of the data processed by the display apparatus 100 to the wireless communication unit ( 173) can be transmitted to the wearable device. Accordingly, a user of the wearable device may use data processed by the display apparatus 100 through the wearable device.
  • the display unit 180 converts an image signal, a data signal, an OSD signal processed by the control unit 170, or an image signal and a data signal received from the external device interface unit 135 into R, G, and B signals, respectively. Can generate signals.
  • the display device 100 shown in FIG. 1 is only an embodiment of the present invention. Some of the illustrated components may be integrated, added, or omitted according to the specifications of the display device 100 that is actually implemented.
  • two or more components may be combined into a single component, or one component may be subdivided into two or more components and configured.
  • functions performed by each block are for explaining an embodiment of the present invention, and specific operations or devices thereof do not limit the scope of the present invention.
  • the display apparatus 100 does not include a tuner 131 and a demodulation unit 132, but a network interface unit 133 or an external device interface unit ( 135) can also be received and played.
  • 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 reproducing device for reproducing content input from the image processing device. 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 reproducing device for reproducing content input from the image processing device. Can be implemented.
  • the method of operating the display device according to an embodiment of the present invention to be described below is not only the display device 100 as described with reference to FIG. 1, but also an image processing device or display unit such as the separated set-top box. 180) and the audio output unit 185 may be performed by any one of a content playback device.
  • FIG. 2 is a block diagram of a remote control device according to an embodiment of the present invention
  • FIG. 3 is a block diagram showing an example of an actual configuration of a remote control device 200 according to an embodiment of the present invention.
  • the remote control device 200 includes a fingerprint recognition unit 210, a wireless communication unit 220, a user input unit 230, a sensor unit 240, an output unit 250, and a power supply unit 260. ), a storage unit 270, a control unit 280, and a voice acquisition unit 290.
  • the wireless communication unit 220 transmits and receives signals to and from any one of the display devices according to the exemplary embodiments described above.
  • the remote control device 200 includes an RF module 221 capable of transmitting and receiving signals with the display device 100 according to the RF communication standard, and capable of transmitting and receiving signals with the display device 100 according to the IR communication standard.
  • An IR module 223 may be provided.
  • the remote control device 200 may include a Bluetooth module 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 includes an NFC module 227 capable of transmitting and receiving signals with the display device 100 according to the NFC (Near Field Communication) communication standard, and the display according to the WLAN (Wireless LAN) communication standard.
  • a WLAN module 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 unit 220.
  • the remote control device 200 may receive a signal transmitted from the display device 100 through the RF module 221, and power on/off the display device 100 through the IR module 223 as necessary. Commands for off, channel change, volume change, etc. can be transmitted.
  • the user input unit 230 may be composed of a keypad, a button, a touch pad, or a touch screen. A user may input a command related to the display device 100 to the remote control device 200 by manipulating the user input unit 230.
  • the user input unit 230 includes a hard key button, the user may 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 described 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, a power button 231, a home button 232, a live button 233, an external input button 234, a volume control button 235, a voice recognition button 236, A channel change button 237, a confirmation button 238, and a back button 239 may be included.
  • the fingerprint recognition button 212 may be a button for recognizing a user's fingerprint. As an example, 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 power of the display apparatus 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 volume output by the display apparatus 100.
  • the voice recognition button 236 may be a button for receiving a user's voice and recognizing the received voice.
  • the channel change button 237 may be a button for receiving a broadcast signal of a specific broadcast channel.
  • the confirmation button 238 may be a button for selecting a specific function, and the back button 2
  • the user input unit 230 When the user input unit 230 includes a touch screen, the user may input a command related to the display device 100 to the remote control device 200 by touching a soft key on the touch screen.
  • the user input unit 230 may include various types of input means that a user can manipulate, such as a scroll key or a jog key, and the present embodiment does not limit the scope of the present invention.
  • the sensor unit 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 may sense information on the operation of the remote control device 200 based on the x, y, and z axes, and the acceleration sensor 243 is the moving speed of the remote control device 200 Information about the back can be sensed.
  • the remote control device 200 may further include a distance measuring sensor, so that the distance to the display unit 180 of the display device 100 may be sensed.
  • the output unit 250 may output an image or audio signal corresponding to an operation of the user input unit 230 or a signal transmitted from the display apparatus 100. Through the output unit 250, the user may recognize whether the user input unit 230 is operated or whether the display apparatus 100 is controlled.
  • the output unit 250 includes an LED module 251 that lights up when the user input unit 230 is operated or a signal is transmitted and received with the display device 100 through the wireless communication unit 220, and a vibration module that generates vibration ( 253), a sound output module 255 for outputting sound, or a display module 257 for outputting an image may be provided.
  • the power supply unit 260 supplies power to the remote control device 200, and when the remote control device 200 has not moved for a predetermined period of time, the power supply is stopped, thereby reducing power waste.
  • the power supply unit 260 may resume power supply when a predetermined key provided in the remote control device 200 is operated.
  • the storage unit 270 may store various types of programs, application data, and the like necessary for controlling or operating the remote control device 200. If the remote control device 200 wirelessly transmits and receives signals through the display device 100 and the RF module 221, the remote control device 200 and the display device 100 transmit and receive signals through a predetermined frequency band. .
  • the control unit 280 of the remote control device 200 stores information about a frequency band through which signals can be wirelessly transmitted and received with the display device 100 paired with the remote control device 200 in the storage unit 270 and is referred to. can do.
  • the controller 280 controls all matters related to the control of the remote control device 200.
  • the controller 280 transmits a signal corresponding to the operation of a predetermined key by the user input unit 230 or a signal corresponding to the movement of the remote control device 200 sensed by the sensor unit 240 through the wireless communication unit 220. 100).
  • the voice acquisition unit 290 of the remote control device 200 may acquire voice.
  • the voice acquisition unit 290 may include at least one microphone 291, and may acquire a voice through the microphone 291.
  • FIG. 4 will be described.
  • FIG. 4 shows an example of using a remote control device according to an embodiment of the present invention.
  • FIG. 4A illustrates that a pointer 205 corresponding to the remote control device 200 is displayed on the display unit 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 unit 180 of the display device 100 corresponds to the movement of the remote control device 200.
  • the remote control device 200 since the corresponding pointer 205 is moved and displayed according to movement in the 3D space, the remote control device 200 may be referred to as a space remote controller.
  • FIG. 4B illustrates that when the user moves the remote control device 200 to the left, the pointer 205 displayed on the display unit 180 of the display device 100 also moves to the left in response thereto.
  • 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 apparatus 100 may display the pointer 205 to correspond to the calculated coordinates.
  • FIG. 4C illustrates a case where a user moves the remote control device 200 away from the display unit 180 while pressing a specific button in the remote control device 200. Accordingly, the selection area in the display unit 180 corresponding to the pointer 205 may be zoomed in and displayed in an enlarged manner.
  • a selection area in the display unit 180 corresponding to the pointer 205 may be zoomed out and displayed in a reduced size.
  • the selection area may be zoomed out, and when the remote control device 200 approaches the display unit 180, the selection area may be zoomed in.
  • a specific button in the remote control device 200 when a specific button in the remote control device 200 is pressed, recognition of vertical and horizontal movement may be excluded. That is, when the remote control device 200 moves away from or approaches the display unit 180, up, down, left, and right movements are not recognized, but only forward and backward movements may be recognized. In a state in which a specific button in the remote control device 200 is not pressed, only the pointer 205 is moved according to the up, down, left, and right movement of the remote control device 200.
  • the moving speed or moving direction of the pointer 205 may correspond to the moving speed or moving direction of the remote control device 200.
  • a pointer refers to an object displayed on the display unit 180 in response to an operation of the remote control device 200.
  • the pointer 205 can be used to make objects of various shapes other than the arrow shape shown in the drawing.
  • it may be a concept including a point, a cursor, a prompt, and a thick outline.
  • the pointer 205 may be displayed in correspondence with any one of a horizontal axis and a vertical axis on the display unit 180, as well as a plurality of points such as a line and a surface. Do.
  • FIG. 5 is a diagram illustrating a state in which a display device according to an embodiment of the present invention is connected to a source device through HDMI.
  • the display device 100 may include an HDMI input port 101 to which the HDMI 400 is connected.
  • the HDMI input port 101 may be an HDMI terminal for receiving an image signal from an external device through HDMI.
  • At least one HDMI input port 101 may be provided in the display device 100.
  • the display device 100 may receive an HDMI signal through the HDMI 400 connected to the HDMI input port 101 and may output images and audio based on the received HDMI signal.
  • the HDMI 400 may include an HDMI cable 401 and a pair of connectors 402 and 403.
  • the HDMI cable 401 includes signal lines through which signals are transmitted between a pair of connectors 402 and 403, and the connectors 402 and 403 are a playback device (for example, a display device 100) or a source. It may be a terminal for connecting to the device.
  • the source device may be any one of a set-top box, a Blu-ray player, a DVD player, a game console, a sound bar, a smartphone, a PC, a USB memory, and a home theater, but this is only an example.
  • the HDMI cable 401 may connect between a pair of connectors 402 and 403 and transmit video, audio, and control signals between the pair of connectors 402 and 403.
  • the pair of connectors 402 and 403 is for connecting a source device that transmits a signal and a playback device that receives a signal transmitted from the source device, and includes a first connector 402 and a second connector 403. Can include.
  • One of the first connector 402 and the second connector 403 is connected to the HDMI output port 301 of the source device 300, and the other one of the first connector 402 and the second connector 403 is It may be connected to the HDMI input port 101 of the display device 100.
  • the first connector 402 is connected to the HDMI output port 301 of the source device 300 and the second connector 403 is connected to the HDMI input port 101 of the display device 100.
  • This is merely an example for convenience of description and is not limited thereto.
  • Each of the first and second connectors 402 and 403 may include a plurality of pins.
  • the number of pins provided in the connectors 402 and 403 may vary according to the HDMI type. For example, when HDMI is Type A, the connectors 402 and 403 may have 19 pins. Hereinafter, it is assumed that the connector includes 19 pins, but this is only an example for convenience of description and thus is not limited thereto.
  • Each of the HDMI output port 301 and the HDMI input port 101 is connected to the first connector 402 and the second connector 403, and each of the HDMI output port 301 and the HDMI input port 101 has a connector ( Like the 402 and 403, a plurality of pins may be provided.
  • the display device 100 may receive an HDMI signal from the source device 300 through the HDMI 400 connected to the HDMI input port 101.
  • FIG. 6 is a diagram illustrating a structure of an HDMI port according to an embodiment of the present invention
  • FIG. 7 is a diagram illustrating a function of a pin included in the HDMI port according to an embodiment of the present invention.
  • the HDMI port of FIGS. 6 and 7 may be used as an HDMI output port 301 provided in the source device 300 or an HDMI input port 101 provided in the display device 100.
  • the HDMI port can contain 19 pins.
  • Pins 1 to 12 may be Transition Minimized Differential Signaling (TMDS) signal transmission pins.
  • Pins 1 to 9 constitute three TMDS data channels that transmit data 0, data 1, and data 2, respectively, and each TMDS data channel consists of three pins.
  • pins 1 to 3 are channels for transmitting data 2
  • pins 4 to 6 are channels for transmitting data 1
  • pins 7 to 9 are channels for transmitting data 0.
  • the TMDS data (0, 1, 2) includes image information and audio information, and each TMDS data channel may be divided into a + line, a-line, and a shield line.
  • pin 2 may be connected to the shield line of data 2
  • pin 5 may be connected to the shield line of data 1
  • pin 8 may be connected to the shield line of data 0.
  • Pins 10 to 12 are TMDS Clock signal transmission pins, and can maintain a synchronization state of signals.
  • pins 10 to 12 constitute a TMDS clock channel, the TMDS clock channel is divided into a + line, a-line, and a shield line, and pin 11 may be connected to the shield line of the TMDS clock.
  • Pin 13 is a channel that transmits CEC (Consumer Electronics Control) signals, and can transmit commands and control data between connected devices.
  • CEC Consumer Electronics Control
  • Pin 14 is an open pin and can be selectively used, such as HEC (HDMI Ethernet Channel) or ARC (AUDIO Return Channel).
  • HEC HDMI Ethernet Channel
  • ARC AUDIO Return Channel
  • Pins 15 (SCL) and 16 (SDA) are DDC (Display Data Channel) connection lines, and may be pins that transmit EDID (Extended Display Identification Channel) information values between devices.
  • DDC Display Data Channel
  • EDID Extended Display Identification Channel
  • Pin 17 can be a pin used as a ground line when using DDC, CEC, ARC, or HDC.
  • Pin 18 may be a pin that supplies 5V power.
  • Pin 19 may be a pin that functions as an HPD (Hot Plug Detect).
  • HDMI may further include an outer shield (outer shield).
  • the shield is for blocking a signal of noise from outside, and can also serve as a ground wire.
  • each of pins 1 to 19 of the first connector 402 is connected to pins 1 to 19 of the second connector 403.
  • pins 1 to 19 of the first connector 402 may not be connected to the second connector 403.
  • pins 2, 5, 8, and 11 are shield pins of the TMDS signal, and even if they are not connected between the first connector 402 and the second connector 403, there is a problem with the video output. Since it does not occur, pin 2, pin 5, pin 8, and pin 11 of the first connector 402 are respectively connected to pins 2, 5, 8, and 11 of the second connector 403. Cables connecting to each may be missing.
  • the display device 100 uses pin 17 of the HDMI input port 101 as a ground line, pins 2, 5, and 8 of the first connector 402 of the HDM 400, Even if a cable connecting each of pin 11 to pin 2, pin 5, pin 8, and pin 11 of the second connector 403 is omitted, the source device 300 and the display device through pin 17 Since a ground path is formed between the (100), an image can be normally recognized from the source device (300).
  • pins 2, 5, and 8 of the first connector 402 of the HDMI 400 If a cable connecting each of pins and 11 to pins 2, 5, 8, and 11 of the second connector 403 is missing, the source device 300 and the display device 100 Since the ground path is not formed, the image cannot be recognized normally.
  • FIG. 8 is a diagram illustrating a state in which a source device and a display device are connected by standard HDMI
  • FIG. 9 is a diagram illustrating a state in which a source device and a display device are connected by non-standard HDMI.
  • the display device 100 may further include an HDMI receiver 103 and an external device detector 105.
  • the HDMI receiver 103 may be connected to pins 1, 3, 4, 6, 7, 9, 10, and 12 of the HDMI input port 101.
  • the external device detection unit 105 may be connected to the signal line 106 connected to pin 17 of the HDMI input port 101. At least one of pins 2, 5, 8, and 11 may be connected to the ground line 104.
  • Pin 14 may be an open pin, and pin 13, pin 15, pin 16, and pin 19 may be connected to the control unit 170 or other components according to functions.
  • the HDMI receiver 103 can receive an HDMI signal from the source device 300 through pins 1, 3, 4, 6, 7, 9, 10, and 12. have.
  • the HDMI signal may include an HDMI video signal and an HDMI audio signal.
  • the HDMI receiving unit 103 may convert the received HDMI video signal into a form suitable for display on the display unit 180. Specifically, the HDMI receiving unit 103 may scale the HDMI video signal received through the HDMI input port 101 into a form suitable for outputting to the display unit 180.
  • the HDMI receiver 103 may convert the received HDMI audio signal into a form suitable for output through an audio output unit 185 such as a speaker.
  • a voltage input unit 107 and a pull-up resistor 109 may be connected to a signal line 106 connected between pin 17 of the HDMI input port 101 and the external device detection unit 105. Therefore, when the HDMI 400 is not connected to the HDMI input port 101, the voltage input from the voltage input unit 107 is applied to the external device sensing unit 105, and the external device sensing unit 105 is high. ) State, and when the HDMI 400 is connected to the HDMI input port 101, the voltage input from the voltage input unit 107 is applied to the ground wire provided in the source device 300 through the HDMI 400 The device detection unit 105 is in a low state.
  • the display device 100 includes the external device detection unit 105 connected to pin 17 of the HDMI input port 101 and the signal line 106 to obtain whether or not the source device 300 is connected. have. That is, when the external device detection unit 105 is in a high state, the display device 100 determines that the source device 300 is not connected, and when the external device detection unit 105 is in a low state, the source device 300 is connected. It can be judged as.
  • pins 2 and 5 of the first connector 402 At least one of pins, pins 8, and 11 is connected to at least one of pins 2, 5, 8, and 11 of the second connector 404, so that the source device 300 and the display device A ground path is formed between (100).
  • pins 2, 5, 8, and 11 of the first connector 402 are respectively connected to the HDMI input port 101 of the display device 100 as a second connector.
  • a non-standard HDMI 400 without a signal line connecting each of pins 2, 5, 8, and 11 of 404 is connected, between the source device 300 and the display device 100 Ground path is not formed
  • the display device 100 forms a ground path between the source device 300 and the display device 100 even when the non-standard HDMI 400 is connected to the HDMI input port 101. It may further include a switch for.
  • the switch according to the embodiment of the present invention may be connected between at least one pin of the HDMI input port 101 and a ground line.
  • the pin to which the switch is connected may be at least one of a pin to which a shield of HDMI is connected and a ground pin of an HDMI.
  • the pin to which the switch is connected may be at least one of pin 2, pin 5, pin 8, pin 11, and pin 17.
  • the ground line may be a line connected to the ground GND.
  • FIG. 10 is a diagram illustrating a display device according to a first embodiment of the present invention
  • FIG. 11 is a diagram illustrating a display device according to a second embodiment of the present invention.
  • the display device 100 includes a switch 1010 connected between a signal line 106 connected to pin 17 of the HDMI input port 101 and a ground line 104 ( 1020) may be further included.
  • the display device 100 includes a switch 1010 connected between the signal line 106 and the ground line 104 connected to pin 17 of the HDMI input port 101,
  • the collector (C) of the switch 1010 is connected to the signal line 106, the base (B) is connected to pin 18 of the HDMI input port 101, and the emitter (E) is connected to the ground line 104. Can be connected.
  • a first resistor 1011 may be further connected between the base B of the switch 1010 and pin 18 of the HDMI input port 101.
  • the switch 1010 may be turned on or off based on whether a signal is received from the source device 300. Specifically, the switch 1010 may be turned on when a signal is received from the source device 300, and the switch 1010 may be turned off when a signal is not received from the source device 300.
  • the signal from the source device 300 may mean a signal received through pin 18 of the HDMI input port 101.
  • the signal received through pin 18 may be a 5V voltage supplied from the source device 300.
  • the switch 1010 When the switch 1010 is turned on, the signal line 106 and the ground line 104 are energized, and when the switch 1010 is turned off, the signal line 106 and the ground line 104 may be cut off.
  • pin 17 of the HDMI input port 101 is connected to the ground line. Since it is connected, a ground path may be formed between the source device 300 and the display device 100. Accordingly, pin 2, pin 5, pin 8, and pin 11 of the first connector 402 are respectively connected to the display device 100 in pins 2, 5, and 8 of the second connector 404. And even if the non-standard HDMI 400 without a signal line connecting to each of the 11 pins is connected, there is an advantage that the HDMI signal can be normally received from the source device 300.
  • the signal line 106 and the ground line 104 are cut off, the voltage input from the voltage input unit 107 is applied to the external device detection unit 105, so that the external device detection unit 105 is in a high state. Therefore, it can be recognized that the source device 300 is not connected.
  • the display device 100 includes a switch 1020 connected between the signal line 106 connected to pin 17 of the HDMI input port 101 and the ground line 104,
  • the collector (C) of the switch 1020 is connected to the signal line 106, the base (B) is connected to pin 19 of the HDMI input port 101, and the emitter (E) is connected to the ground line 104. Can be connected.
  • a second resistor 1021 may be further connected between the base B of the switch 1020 and pin 19 of the HDMI input port 101.
  • the switch 1020 may be turned on or off based on whether a signal is received from the source device 300. Specifically, the switch 1020 may be turned on when a signal is received from the source device 300, and the switch 1020 may be turned off when a signal is not received from the source device 300.
  • the signal from the source device 300 may mean a signal received through pin 19 of the HDMI input port 101.
  • the signal received through pin 19 may be a hot plug signal received from the source device 300.
  • the switch 1020 When the switch 1020 is turned on, the signal line 106 and the ground line 104 are energized, and when the switch 1020 is turned off, the signal line 106 and the ground line 104 may be cut off.
  • pin 17 of the HDMI input port 101 is connected to the ground line. Since it is connected, a ground path may be formed between the source device 300 and the display device 100. Accordingly, pin 2, pin 5, pin 8, and pin 11 of the first connector 402 are respectively connected to the display device 100 in pins 2, 5, and 8 of the second connector 404. And even if the non-standard HDMI 400 without a signal line connecting to each of the 11 pins is connected, there is an advantage that the HDMI signal can be normally received from the source device 300.
  • the signal line 106 and the ground line 104 are cut off, the voltage input from the voltage input unit 107 is applied to the external device detection unit 105, so that the external device detection unit 105 is in a high state. Therefore, it can be recognized that the source device 300 is not connected.
  • a display device to be described later may be a display device according to an embodiment other than the first to second embodiments described above.
  • the collector (C) is connected to pin 17 of the HDMI input port 101
  • the base (B) is connected to pin 18 of the HDMI input port 101
  • the emitter ( It has been described that E) is connected to the ground line 104.
  • the collector C of the switch 1010 is not pin 17 of the HDMI input port 101, but a pin to which the HDMI shield of the HDMI input port 101 is connected, It may be connected to at least one of a ground pin of HDMI and an external shield of HDMI. That is, according to a modified embodiment, the collector C of the switch 1010 may be connected to at least one of pin 2, pin 5, pin 8, pin 11, pin 17, and an external shield.
  • the collector (C) of the switch 1020 is connected to pin 17 of the HDMI input port 101, and the base (B) is connected to pin 19 of the HDMI input port 101. It has been described that the ter E is connected to the ground line 104.
  • the collector C of the switch 1020 is not pin 17 of the HDMI input port 101, but a pin to which the HDMI shield of the HDMI input port 101 is connected, It may be connected to at least one of a ground pin of HDMI and an external shield of HDMI. That is, according to a modified embodiment, the collector C of the switch 1020 may be connected to at least one of pin 2, pin 5, pin 8, pin 11, pin 17, and an external shield.
  • the switches 1010 and 1020 have been described assuming that they are BJT (Bipolar Junction Transistor), but this is only an example for convenience of description, and the type of switch is not limited. . That is, the switches 1010 and 1020 may be implemented as a field effect transistor (FET) or the like.
  • FET field effect transistor
  • the base B of the switches 1010 and 1020 is connected to pin 18 or 19 has been described, but the base B is a trigger signal from the source device 300. It may be connected to another signal line capable of receiving.
  • FIGS. 8 to 11 only some components such as the HDMI input port 101, the HDMI receiver 103, and the external device detection unit 105 are shown in the display device 100, but this is for convenience of description. As a result, other components other than the components illustrated in FIGS. 8 to 11 may be further included or some components may be omitted.

Abstract

L'objectif de la présente invention est de fournir un dispositif d'affichage capable de reconnaître un dispositif source indépendamment de la norme d'un HDMI connecté à un port d'entrée HDMI, et peut comprendre : un port d'entrée HDMI auquel un HDMI est connecté ; une unité de réception HDMI permettant de recevoir un signal vidéo provenant d'un dispositif source par l'intermédiaire du HDMI connecté au port d'entrée HDMI ; et un commutateur connecté entre une ligne de masse et une ligne de signal connectée à la broche 17 du port d'entrée HDMI.
PCT/KR2019/017348 2019-05-02 2019-12-10 Dispositif d'affichage WO2020222389A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2019-0051478 2019-05-02
KR1020190051478A KR20200127415A (ko) 2019-05-02 2019-05-02 디스플레이 장치

Publications (1)

Publication Number Publication Date
WO2020222389A1 true WO2020222389A1 (fr) 2020-11-05

Family

ID=73028979

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2019/017348 WO2020222389A1 (fr) 2019-05-02 2019-12-10 Dispositif d'affichage

Country Status (2)

Country Link
KR (1) KR20200127415A (fr)
WO (1) WO2020222389A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022149623A1 (fr) * 2021-01-05 2022-07-14 엘지전자 주식회사 Dispositif d'affichage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070118768A (ko) * 2006-06-13 2007-12-18 삼성전자주식회사 디스플레이장치 및 그 제어방법
KR20100058747A (ko) * 2008-11-25 2010-06-04 삼성전자주식회사 고선명 멀티미디어 인터페이스를 사용하는 휴대용 단말기에서 핫 플러그 감지 기능을 지원하기 위한 장치 및 방법
KR20120099881A (ko) * 2011-03-02 2012-09-12 삼성전자주식회사 영상처리장치 및 그 제어방법
KR20130003645A (ko) * 2011-06-30 2013-01-09 주식회사 케이티 외부 디바이스와 이에 도킹되는 휴대 단말 사이의 연결 수립 방법
KR20180045416A (ko) * 2016-10-25 2018-05-04 삼성전자주식회사 전자 장치와 전자 장치가 외부 장치의 접속 단자를 인식하는 방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070118768A (ko) * 2006-06-13 2007-12-18 삼성전자주식회사 디스플레이장치 및 그 제어방법
KR20100058747A (ko) * 2008-11-25 2010-06-04 삼성전자주식회사 고선명 멀티미디어 인터페이스를 사용하는 휴대용 단말기에서 핫 플러그 감지 기능을 지원하기 위한 장치 및 방법
KR20120099881A (ko) * 2011-03-02 2012-09-12 삼성전자주식회사 영상처리장치 및 그 제어방법
KR20130003645A (ko) * 2011-06-30 2013-01-09 주식회사 케이티 외부 디바이스와 이에 도킹되는 휴대 단말 사이의 연결 수립 방법
KR20180045416A (ko) * 2016-10-25 2018-05-04 삼성전자주식회사 전자 장치와 전자 장치가 외부 장치의 접속 단자를 인식하는 방법

Also Published As

Publication number Publication date
KR20200127415A (ko) 2020-11-11

Similar Documents

Publication Publication Date Title
WO2017142151A1 (fr) Dispositif d'affichage et son procédé de fonctionnement
WO2018048178A1 (fr) Dispositif d'affichage
WO2015194697A1 (fr) Dispositif d'affichage vidéo et son procédé d'utilisation
WO2021251519A1 (fr) Appareil d'affichage et son procédé de fonctionnement
WO2020222389A1 (fr) Dispositif d'affichage
WO2015186857A1 (fr) Appareil d'affichage d'image, et procédé de commande associé
WO2019009453A1 (fr) Dispositif d'affichage
WO2022149650A1 (fr) Dispositif d'affichage et système d'affichage
WO2022177073A1 (fr) Dispositif d'affichage permettant de gérer un dispositif externe connecté à celui-ci par l'intermédiaire d'une communication par bluetooth et procédé de gestion d'un dispositif externe connecté par bluetooth
WO2021241777A1 (fr) Dispositif d'affichage et son procédé de fonctionnement
WO2021029453A1 (fr) Dispositif d'affichage et son procédé de fonctionnement
WO2020122274A1 (fr) Dispositif d'affichage
WO2022149623A1 (fr) Dispositif d'affichage
WO2021029469A1 (fr) Dispositif d'affichage et son procédé de fonctionnement
WO2022059807A1 (fr) Dispositif d'affichage et procédé de commande de mise hors tension associé
WO2022181862A1 (fr) Dispositif d'affichage
WO2022260259A1 (fr) Dispositif d'affichage et procédé de recommandation d'un contenu au moyen dudit dispositif d'affichage
WO2023013793A1 (fr) Appareil d'affichage et son procédé d'exploitation
WO2022139028A1 (fr) Dispositif et système d'affichage
WO2023191122A1 (fr) Dispositif d'affichage
WO2023095957A1 (fr) Dispositif d'affichage empêchant une erreur d'un contrôleur de mémoire due à une chute de tension instantanée et procédé associé
WO2024071485A1 (fr) Dispositif d'affichage et procédé de commande de dispositif d'affichage
WO2022004918A1 (fr) Dispositif de commande à distance et son procédé de fonctionnement
WO2023008621A1 (fr) Dispositif d'affichage sans fil, boîtier décodeur sans fil et système d'affichage sans fil
WO2022114247A1 (fr) Dispositif d'affichage et son procédé d'utilisation

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19927420

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19927420

Country of ref document: EP

Kind code of ref document: A1