CN117014558A - Butt-joint display - Google Patents

Butt-joint display Download PDF

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Publication number
CN117014558A
CN117014558A CN202210457179.8A CN202210457179A CN117014558A CN 117014558 A CN117014558 A CN 117014558A CN 202210457179 A CN202210457179 A CN 202210457179A CN 117014558 A CN117014558 A CN 117014558A
Authority
CN
China
Prior art keywords
video
output port
hub
port
display
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202210457179.8A
Other languages
Chinese (zh)
Inventor
林育蔚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Realtek Semiconductor Corp
Original Assignee
Realtek Semiconductor Corp
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 Realtek Semiconductor Corp filed Critical Realtek Semiconductor Corp
Priority to CN202210457179.8A priority Critical patent/CN117014558A/en
Publication of CN117014558A publication Critical patent/CN117014558A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/268—Signal distribution or switching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

A docking display includes a multi-stream transmission port, a multi-stream transmission controller, a display panel, a control circuit, a hub, a first video output port and a second video output port. The multi-stream transmission port is used for inputting at least one video. The multi-stream transmission controller is used for processing the at least one video. The control circuit is used for outputting a first video of the at least one video to the display panel so that the display panel displays a picture according to the first video. When the at least one video includes a plurality of videos, the hub outputs a second video of the videos from a first output port of the hub to the first video output port, or from a second output port of the hub and through the multiple stream transmission controller to the second video output port.

Description

Butt-joint display
Technical Field
The present invention relates to a display, and more particularly to a display with docking function.
Background
When using a display, a user often uses a docking (docking) to amplify various signal interfaces to achieve the function of simultaneously connecting multiple displays and multiple other devices. However, since the display and the docking device are two different devices, a space is required for each device, and thus the space utilization rate cannot be optimized when the two devices are used simultaneously. In addition, when the dockee is connected to only one display, the hub for distributing video therein cannot be turned off because it is disposed on the video transmission path, resulting in unnecessary power consumption.
Disclosure of Invention
Embodiments of the present invention provide a docking display, which includes a first video output port, a second video output port, a multi-stream transmission controller, a display panel, a control circuit, and a hub. The multi-stream transmission port is used for inputting at least one video. The multiple stream transmission controller includes a first input port coupled to the multiple stream transmission port for receiving the at least one video, a first output port for outputting the at least one video, a second input port, and a second output port coupled to the first video output port. The display panel is used for displaying pictures. The control circuit comprises a first input port, a first output port and a second output port. The first input port of the control circuit is coupled to the first output port of the multi-stream transmission controller to receive the at least one video. The first output port of the control circuit is used for outputting a first video of the at least one video to the display panel so that the display panel displays pictures according to the first video. The second output port of the control circuit is used for outputting the rest video except the first video in the plurality of videos when the at least one video contains the plurality of videos. The hub includes an input port, a first output port, and a second output port. The input port of the hub is coupled to the second output port of the control circuit, the first output port of the hub is coupled to the second input port of the multi-stream transmission controller, and the second output port of the hub is coupled to the second video output port. When the at least one video includes a plurality of videos, the hub outputs a second video of the plurality of videos from the first output port of the hub or the second output port of the hub.
Drawings
Fig. 1 is a schematic diagram of a docking display according to an embodiment of the invention.
Fig. 2 is a diagram illustrating several possible scenarios of video received by each component of the docking display of fig. 1 when a different number of videos are received.
Fig. 3 is a schematic diagram for explaining the connection of a plurality of docking displays according to the present invention.
Detailed Description
Fig. 1 is a schematic diagram of a docking monitor (docking monitor) 10 according to an embodiment of the present invention. The docking display 10 includes a multiple streaming (Multi stream transport; MST) port 20, a Multiple Streaming (MST) controller 30, a control circuit 40, a display panel 50, a Multiple Streaming (MST) hub 60, and a plurality of video output ports 70, 80, and 100. The MST port 20 is used to input at least one video Vin, which may be a single video or multiple videos of the videos V1 to V4. In addition, the MST port 20 may be a universal serial bus (Universal Serial Bus; USB) port, a DisplayPort (DP), a Lei Li (TBT) port, a Multi-function DisplayPort (Multi-Function DisplayPort; MFDP) or other transmission ports supporting Multiple Stream Transmission (MST) functions. If MST port 20 is a USB port, its USB version may be USB4. In addition, the MST controller 30 includes a plurality of input ports I31 and I32 and a plurality of output ports O31 and O32, and is configured to process at least one video Vin from the MST port 20. In the embodiment of the present invention, the format of the video output from the output port O31 by the MST controller 30 is the Display Port (DP) format, and when any video in the at least one video Vin is not in the DP format, the MST controller 30 converts the video in the non-DP format into the video in the DP format and then outputs the video from the output port O31. The MST controller 30 is, for example, a thunder (TBT) controller manufactured by Intel corporation under the name "golden Ridge", but the present invention is not limited thereto. The input port I31 is coupled to the MST port 20 for receiving at least one video Vin, the output port O31 is for outputting at least one video Vin, the input port I32 is coupled to the MST hub 60, and the output port O32 is coupled to the video output port 80 of the docking display 10. The control circuit 40 includes an input port I41 and a plurality of output ports O41 and O42. The input port I41 is coupled to the output port O31 of the MST controller 30 to receive at least one video Vin. The output port O41 is configured to output a video V1 in the at least one video Vin to the display panel 50, so that the display panel 50 displays a frame according to the video V1. The output port O42 is configured to output the rest of the videos (e.g., the video V2) except the video V1 in the at least one video Vin when the at least one video Vin includes a plurality of videos (e.g., the videos V1 and V2). The control circuit 40 may be a scaler (scaler) for the docking display 10, but the present invention is not limited thereto. The MST hub 60 is a hub supporting Multiple Streaming (MST) functions, and includes an input port I61 and a plurality of output ports O61 to O63. The input port I61 is coupled to the output port O42 of the control circuit 40, the output port O61 is coupled to the input port I32 of the MST controller 30, the output port O62 is coupled to the video output port 70, and the output port O63 is coupled to the video output port 100. The video output ports 70, 80 and 100 may be connected to different displays or devices (e.g., a host computer, a hub, etc.), respectively, and output received video or signals to the connected displays or devices. Further, when the above-mentioned at least one video Vin contains a plurality of videos, the MST hub 60 outputs a video V2 of the plurality of videos from one of the plurality of output ports O61 to O63 of the MST hub 60. In addition, when the MST hub 60 outputs the video V2 from the output port O61 to the input port I32 of the MST controller 30, the MST controller 30 outputs the video V2 received by the input port I32 from the output port O32 to the video output port 80.
In an embodiment of the present invention, the docking display 10 may further include a Universal Serial Bus (USB) hub 110 and a signal mixer 90, and the MST controller 30 may further include a data input port I33. The input port I92 of the signal mixer 90 is coupled to the output port O63 of the MST hub 60 to receive the video output from the output port O63. The USB hub 110 includes a data input port I11 for connecting to a USB device (e.g., a mouse or a keyboard of a USB interface) to receive a data string St (e.g., a digital signal generated by the mouse or the keyboard) from the connected USB device. The USB hub 110 may transfer the data string St received by the data input port I11 to the data input port I91 of the signal mixer 90 and the data input port I33 of the MST controller 30. The data input port I91 and the data input port I33 may be USB ports. The signal mixer 90 is coupled to the MST hub 60, the USB hub 110 and the video output port 100 for mixing the video V2 with the data string St and outputting the mixed second video V2 and data string St from the video output port 100. Similarly, the MST controller 30 may mix the video V2 with the data string St and output the mixed video V2 with the data string St from the video output port 80.
In an embodiment of the present invention, the docking display 10 may not further include the USB hub 110, and the data input port I91 of the signal mixer 90 may be directly used as the data input port of the docking display 10 instead of the data input port I11 of the USB hub 110. In other words, the data input port I91 of the signal mixer 90 receives the data string St directly from the external USB device, and no longer passes through the USB hub 110. In another embodiment of the present invention, the data input port I11 of the USB hub 110 is replaced by the data input port I33 of the MST controller 30, and the data input port I33 directly receives the data string St from the external USB device, and no longer passes through the USB hub 110.
As previously described, the at least one video Vin may be a single video or multiple videos of the videos V1 to V4. When the at least one video Vin includes a plurality of videos, the remaining videos except the video V1 are transmitted to the display panel 50, and then are transmitted to the MST hub 60 through the output port O42 by the control circuit 40. When the MST hub 60 receives video from the control circuitry 40, it distributes any video received to one of the video output ports 70, 80 and 100. Fig. 2 is a diagram illustrating several possible scenarios of video received by the components of the docking display 10 of fig. 1 when a different number of videos are received. Fig. 2 illustrates only a few possible scenarios for video received by the components of the docking display 10, and not all of the possible scenarios are fully listed, but one of ordinary skill in the art can derive other scenarios not listed in fig. 2 from the description herein. The number in each field of the top column (row) of fig. 2 represents the component of fig. 1 corresponding to the number, for example: 20 represents the MST ports 20, 30 in fig. 1, the MST controllers 30, 40 in fig. 1, the control circuit 40 in fig. 1, and so on. When the MST port 20 receives only the video V1, the video V1 is transmitted to the display panel 50 via the MST controller 30 and the control circuit 40. When the MST port 20 receives the video V1 and V2, the video V1 is transmitted to the display panel 50 via the MST controller 30 and the control circuit 40, the video V2 is transmitted to the MST hub 60 via the MST controller 30 and the control circuit 40, and the MST hub 60 outputs the video V2 to the video output port 70, 80 or 100. When the MST ports 20 receive the videos V1-V3, the video V1 is transmitted to the display panel 50 via the MST controller 30 and the control circuit 40, the videos V2 and V3 are transmitted to the MST hub 60 via the MST controller 30 and the control circuit 40, and the MST hub 60 outputs the videos V2 and V3 to one or both of the video output ports 70, 80 and 100. When the MST ports 20 receive the videos V1-V3, the video V1 is transmitted to the display panel 50 via the MST controller 30 and the control circuit 40, the videos V2, V3 and V4 are transmitted to the MST hub 60 via the MST controller 30 and the control circuit 40, and the MST hub 60 outputs the videos V2, V3 and V4 to one, two or three of the video output ports 70, 80 and 100. Each video (e.g., V2, V3, and V4) output by video output ports 70, 80, and 100, respectively, may be displayed on a corresponding external display.
In the embodiment of the present invention, when at least one video Vin only includes the video V1, since the MST hub 60 does not receive any video, the MST hub 60 can be in the sleep mode at this time, thereby saving the overall power consumption of the docking display 10.
In the embodiment of the invention, the docking display 10 further includes a video input port 120 for receiving the external video V5 and outputting the external video V5 to the input port I42 of the control circuit 40, and the control circuit 40 alternatively outputs the video V1 and the external video V5 to the display panel 50 according to a default display setting, so as to drive the display panel 50 to display a picture.
The various input and output ports of MST controller 30, control circuit 40 and MST hub 60, video output ports 70, 80 and 100, and video input port 120 may be selected from the group consisting of USB ports, DP ports, lei Li (Thunderbolt) ports, multi-function display ports (MFDP), and other transmission ports supporting Multiple Streaming Transmission (MST) functions. In an embodiment of the present invention, the video output port 70 and the output port O62 of the MST hub 60 may be a high definition multimedia interface (High Definition Multimedia Interface; HDMI) port or video graphics array (Video Graphics Array; VGA) port in addition to a USB port, a DP port, a Lei Li (Thunderbolt) port, and a multi-function display port (MFDP), and the MST hub 60 may have a video format conversion function. When the video format received by the input port I61 is different from the video format corresponding to the video output port 70, the MST hub 60 may convert the video predicted to be output to the video output port 70 into a video format conforming to the specification of the video output port 70, and then output the video after the format conversion.
Fig. 3 is a schematic diagram for explaining when a plurality of docking displays 10A to 10C of the present invention are connected. The structure of the docking displays 10A to 10C is the same as the docking display 10 of fig. 1, and will not be described again here. The docking displays 10A-10C may be serially connected to each other through the respective MST port 20 and video output port 80 or 100, and coupled to the host computer 200. The data input port I11 of the docking display 10B may be coupled to the external mouse 210 to receive the data string St (herein, the "cursor signal") generated by the mouse 210. Since the displays 10A to 10C and the host 200 form a Daisy Chain (Daisy Chain), the data string St can be transmitted to the host 200 through the docking display 10A to control the operation of the host 200 or control the host to control the display 10B via the Daisy Chain. Similarly, the data signals of 10A or 10C may also be communicated to each other via a daisy chain with the host.
According to the embodiment, the docking display of the present invention has a docking function in addition to a function of displaying a frame, so that a user can connect to other devices with Multiple Stream Transmission (MST) functions without an additional docking device, thereby optimizing the space utilization. In addition, when the docking display only receives a single video, the concentrator can be in a dormant mode, so that the whole power consumption of the docking display is saved.
The foregoing description is only of the preferred embodiments of the invention, and all changes and modifications that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Symbol description
10. 10A, 10B, 10C: butt-joint display
20: multiple stream transmission port (MST port for short)
30: multiple stream transmission controller (MST controller for short)
40: control circuit
50: display panel
60: multiple stream transmission hub (MST hub for short)
70. 80, 100: video output port
90: signal mixer
110: universal serial bus hub (short: USB hub)
120: video input port
200: computer host
210: mouse with mouse body
V1 to V4: video frequency
V5: external video
Vin: at least one video
I11, I33: data input port
I31, I32, I41, I42, I61, I91, I92: input port
O31, O32, O41, O42, O61, O62, O63: an output port.

Claims (10)

1. A docking display, comprising:
a first video output port;
a second video output port;
a multi-stream transmission port for inputting at least one video;
a multiple stream transmission controller comprising:
a first input port coupled to the multiple stream transmission port for receiving the at least one video;
a first output port for outputting the at least one video;
a second input port; and
a second output port coupled to the first video output port;
a display panel for displaying a picture;
a control circuit comprising:
a first input port coupled to the first output port of the multiple stream transmission controller for receiving the at least one video;
the first output port is used for outputting a first video in the at least one video to the display panel so that the display panel displays pictures according to the first video; and
a second output port for outputting the rest of the videos except the first video when the at least one video contains a plurality of videos; and
a hub, comprising:
an input port coupled to the second output port of the control circuit;
a first output port coupled to the second input port of the multiple stream transmission controller; and
a second output port coupled to the second video output port;
wherein when the at least one video comprises a plurality of videos, the hub outputs a second video of the videos from the first output port of the hub or the second output port of the hub.
2. The docking display of claim 1, wherein the hub is in a sleep mode when the at least one video includes only the first video.
3. The docking display of claim 1, wherein the multi-stream transmission controller outputs the second video from the hub to the first video output port through the second output port of the multi-stream transmission controller when the second video is output from the first output port of the hub.
4. The docking display of claim 1, wherein the hub outputs the second video to the second video output port through the second output port of the hub.
5. The docking display of claim 1, wherein the hub outputs the second video and the third video of the videos to two external displays through the second output port and the second video output port of the hub.
6. The docking display of claim 1, further comprising:
a data input port for inputting a data string; and
and the signal mixer is coupled with the hub, the data input port and the second video output port and used for mixing the second video with the data string and outputting the mixed second video with the data string from the second video output port.
7. The docking display of claim 6, further comprising a third video output port for outputting a third video of the videos, wherein the hub further comprises a third output port for transmitting the third video to the third video output port.
8. The docking display of claim 1, wherein the multi-stream transmission controller further comprises a data input port for inputting a data string; and
the multi-stream transmission controller mixes the second video and the data string, and outputs the mixed second video and data string from the first video output port.
9. The docking display of claim 8, further comprising a third video output port for outputting a third video of the videos, wherein the hub further comprises a third output port for transmitting the third video to the third video output port.
10. The docking display of claim 1, further comprising a video input port for receiving an external video, wherein the control circuit selectively outputs the first video and the external video to the display panel according to a display setting to drive the display panel to display a picture.
CN202210457179.8A 2022-04-28 2022-04-28 Butt-joint display Pending CN117014558A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210457179.8A CN117014558A (en) 2022-04-28 2022-04-28 Butt-joint display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210457179.8A CN117014558A (en) 2022-04-28 2022-04-28 Butt-joint display

Publications (1)

Publication Number Publication Date
CN117014558A true CN117014558A (en) 2023-11-07

Family

ID=88573160

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210457179.8A Pending CN117014558A (en) 2022-04-28 2022-04-28 Butt-joint display

Country Status (1)

Country Link
CN (1) CN117014558A (en)

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