CN210274280U - Transmitting card and display device - Google Patents
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- CN210274280U CN210274280U CN201921867176.1U CN201921867176U CN210274280U CN 210274280 U CN210274280 U CN 210274280U CN 201921867176 U CN201921867176 U CN 201921867176U CN 210274280 U CN210274280 U CN 210274280U
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Abstract
The application provides a transmission card and a display device. The transmitting card comprises a signal receiving module and a signal processing module. The signal receiving module comprises at least three HDMI signal input ports and signal output ports, and is used for receiving video data through the HDMI signal input ports, performing format conversion on the received video data, and outputting the video data with set resolution through the signal output ports. And the signal processing module is connected with the signal output port of the signal receiving module and used for receiving the video data output by the signal receiving module, sampling the received video data, converting the format of the sampled data and outputting the sampled data. The display device includes a transmitter card. The transmitting card and the display device including the transmitting card are more applicable.
Description
Technical Field
The application relates to the field of display, in particular to a transmitting card and display equipment.
Background
An existing LED display receives video data through a transmitting card, transcodes the video data by the transmitting card, and transmits the transcoded video data to a receiving card, and displays an image on a display screen after image processing is performed by the receiving card. However, in the transmitting card in the prior art, the HDMI input ports are few, and there is no scaling function for the resolution of the video data, and only the video data with a certain fixed resolution can be transcoded and output with the same resolution, and the applicability is not high.
SUMMERY OF THE UTILITY MODEL
The present application provides an improved transmitter card and display device.
The application provides a transmitting card includes: the signal receiving module comprises at least three HDMI signal input ports and signal output ports, and is used for receiving video data through the HDMI signal input ports, performing format conversion on the received video data and outputting video data with set resolution through the signal output ports; and the signal processing module is connected with the signal output port of the signal receiving module and is used for receiving the video data output by the signal receiving module, sampling the received video data, converting the format of the sampled data and outputting the sampled data.
Further, the signal receiving module includes an audio output port for outputting audio data. In some embodiments, the audio output port may be connected to an audio device, which improves user experience.
Furthermore, the signal receiving module comprises a video decoding chip, and the video decoding chip comprises at least three HDMI signal input ports and signal output ports, and is connected to the signal processing module. In some embodiments, the plurality of HDMI signal input ports can be simultaneously connected to a plurality of different video data sources, so that the back-and-forth plugging switching between the different video data sources is reduced, and the use is more convenient.
Furthermore, the video decoding chip is integrated with a television function menu selection module, a zooming configuration module and/or an infrared remote control receiving module. In some embodiments, the video decoding chip is scalable.
Further, the signal receiving module and the signal processing module are connected through an LVDS interface. In some embodiments, the LVDS interface is used, so that the transmission speed of the video data is high.
Furthermore, the transmitting card comprises a control module, the control module is connected with the signal processing module through an SPI interface, and the control module is used for controlling the signal processing module to output video data. In some embodiments, the user sets the playing time point of the video data and the like through the control module, so that the user experience effect is good.
Further, the sending card comprises a storage module connected with the signal processing module, and the storage module comprises at least two DDR3 chips. In some embodiments, the memory module comprising two DDR3 chips has larger memory capacity and higher efficiency.
Further, the transmitting card comprises at least two network ports connected with the signal processing module and used for outputting video data. In some embodiments, the design of multiple network ports improves the flexibility of network port connection setting, and the video data transmission is fast.
Further, the signal processing module comprises a programmable logic device. In some embodiments, the cost is low.
The application provides a display device, includes: a transmitting card as previously described; the receiving card is connected with the sending card and is used for receiving the video data output by the sending card and carrying out image processing on the video data; and the display screen is connected with the receiving card and is used for receiving and displaying the video data output by the receiving card.
The signal receiving module of the transmitting card comprises at least three HDMI signal input ports, can be connected with multiple paths of different video data sources simultaneously, reduces the times of back-and-forth plugging switching between different video data sources, and is more convenient to use. Meanwhile, the signal receiving module can receive the video data in the HDMI formats with various resolutions through at least three HDMI signal input ports, and after format conversion is carried out on the received video data, the video data is output according to the set resolution, the video data with different resolutions can be converted into the video data with the set resolution to be output, the resolution of the video data can be scaled, so that the signal receiving module can adapt to more video signal sources, and the applicability is higher. The display device comprising the transmitting card has higher applicability.
Drawings
FIG. 1 is a circuit block diagram of one embodiment of a transmitter card of the present application;
FIG. 2 is a functional block diagram of one embodiment of a display device including a transmitter card of the present application.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of the terms "a" or "an" and the like in the description and in the claims of this application do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" means at least two. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
FIG. 1 is a circuit block diagram of one embodiment of a transmitter card 10 of the present application. The transmitting card 10 includes a signal receiving module 12 and a signal processing module 13. The signal receiving module 12 includes at least three HDMI signal input ports 121 and signal output ports 122. The signal receiving module 12 is configured to receive video data through the HDMI signal input port 121, perform format conversion on the received video data, and output the video data with a set resolution through the signal output port 122. The signal processing module 13 is connected to the signal output port 122 of the signal receiving module 12, and is configured to receive the video data output by the signal receiving module 12, sample the received video data, perform format conversion on the sampled data, and output the sampled data.
The signal receiving module of the transmitting card comprises at least three HDMI signal input ports, can receive video data in HDMI formats with various resolutions, performs format conversion on the received video data, outputs the video data according to the set resolution, can zoom the resolution of the video data, can adapt to more video signal sources, and is higher in applicability. Meanwhile, a plurality of HDMI signal input ports 121 are arranged, so that more paths of video signal sources can be plugged simultaneously, and the use is more convenient.
In one embodiment, the resolution of the video data output by the signal receiving module 12 is set by the user according to actual needs. A variety of resolutions may be provided for user selection. In one embodiment, when the signal receiving module 12 accesses multiple paths of video data, a user selects the HDMI signal input port 121 for accessing the video data according to actual needs, and the signal receiving module 12 receives the video data input by the selected HDMI signal input port 121 and performs format conversion. In one embodiment, the user can select the HDMI signal input port by switching with a remote controller.
In one embodiment, the signal receiving module 12 may process the video data according to a setting instruction input by a user for color temperature, brightness, contrast, and/or the like of the video data. The user can input a setting instruction by operating the remote controller to interact with the signal receiving module 12. The HDMI signal input port 121 of the signal receiving module 12 of the application is selectable, and the video data output resolution and the video data parameters can be set, so that the flexibility of the product is higher, and the application range is wider. In some embodiments, the signal interface module 12 supports a user to remotely select the HDMI signal input port 121 and set the video data output resolution and video data parameters, so that the user can operate the HDMI signal input port more easily and conveniently.
In one embodiment, signal receiving module 12 includes an audio output port 123 for outputting audio data. The audio output port 123 may be connected to an audio device for playing audio data corresponding to the video data.
In one embodiment, the signal receiving module 12 includes a video decoding chip, and the video decoding chip includes at least three HDMI signal input ports and signal output ports, and is connected to the signal processing module 13. The three HDMI signal input ports of the video decoding chip are used as the HDMI signal input port 121 of the signal receiving module 12, and the signal output port of the video decoding chip is used as the signal output port 122 of the signal receiving module 12. In some embodiments, the video decoding chip is integrated with a television function menu selection module, a zooming configuration module and/or an infrared remote control receiving module. The television function menu selection module is used for selecting a television function menu. The scaling configuration module is used for scaling the resolution of the video data. The infrared remote control receiving module is used for receiving the infrared signals transmitted by the infrared remote controller and processing the infrared signals. In one embodiment, the model of the video decoding chip is mstar mst9570S, the model of the video decoding chip supports the video data processing capacity of 2560x 144060 Hz at maximum, and the performance is higher.
In one embodiment, the signal receiving module 12 and the signal processing module 13 are connected through an LVDS interface, and the signal receiving module 12 converts the received video data into video data in an LVDS format and outputs the video data in the LVDS format to the signal processing module 13 through the signal output port 122. The signal processing module 13 samples video data in LVDS format and converts the sampled data into video data in RGB format for output. In some embodiments, the signal processing module 13 comprises a first interface 131. The signal output port 122 of the signal receiving module 12 and the first interface 131 of the signal processing module 13 are both LVDS interfaces, and the signal receiving module 12 and the signal processing module 13 are connected to the first interface 131 through the signal output port 122. In some embodiments, the signal processing module 13 includes a Programmable logic device, such as an FPGA (field Programmable gate array) chip, and the FPGA chip is connected to the signal receiving module 12 through an LVDS interface, so that the number of I/O pins of the FPGA chip is greatly reduced, which is beneficial to reducing the cost.
In one embodiment, the transmitter card 10 of the present application includes a control module 14. The control module 14 and the signal processing module 13 are connected through the SPI interface 134, and the control module 14 is configured to control the signal processing module 13 to output video data. In some embodiments, the transmitter card 10 of the present application includes a memory module 11 coupled to a signal processing module 13. Specifically, the signal processing module 13 samples the video data and converts the RGB format, and then sends the RGB format video data to the storage module 11 for storage. The control module 14 outputs control information to the signal processing module 13, and the signal processing module 13 selects video data to be output from the stored video data according to the control information of the control module 14, and outputs the video data to be output after video cutting processing is performed on the video data. In some embodiments, the control module 14 is connected to the upper computer through a serial port, a user sets parameter data such as video data to be output and a time point of video output through the upper computer, the upper computer transmits a parameter instruction to the signal processing module 13, and the signal processing module 13 completes corresponding operations. In one embodiment, the control module 14 includes an MCU (microcontroller unit) processor, which is connected between the upper computer and the signal processing module 13, and receives an instruction sent by a user through the upper computer to control the operation of the signal processing module 13.
The signal processing module 13 includes a second interface 132, and the storage module 11 and the signal processing module 13 are connected through the second interface 132. In one embodiment, the memory module 11 includes at least two DDR3 chips, so that the memory capacity of the transmitting card 10 is larger and the efficiency is higher, and the transmitting card 10 of the present application can support the video data processing capability with the maximum resolution of 2560x 1440.
The transmitting card 10 of the present application includes at least two network ports 15 connected to the signal processing module 13 for outputting video data. Specifically, the signal processing module 13 includes a third interface 133, and the third interface 133 is connected to the plurality of network ports 15 of the transmitting card 10. In some embodiments, the network port 15 connected to the signal processing module 13 includes 8 gigabit network ports, which improves flexibility of network port 15 connection configuration and data transmission speed of video data. In some embodiments, when the signal processing module 13 outputs the video data, the port arbitration mechanism detects the idle port 15 in a polling manner, and reads the video data from the storage module 11 through a dma (direct Memory access) mechanism after detecting the idle port 15, so as to greatly improve the transmission efficiency of the video data.
The transmitting card 10 provided by the application can output the input video data according to the set resolution, is not limited by the resolution of the received video data, and has a wider application range. Meanwhile, the number of HDMI signal input ports 121 provided by the transmitting card 10 is large, so that a user can conveniently access multiple paths of video data at the same time, the user can selectively output the multiple paths of video data in a remote control mode, and the flexibility and convenience of the product are high.
Fig. 2 is a circuit block diagram of one embodiment of a display device 100 including the transmitting card 10 of the present application. A display device 100 including the transmitting card 10 of the present application is described below with reference to fig. 1 and 2. The display device 100 is connected to the video signal source 40, receives video data input by the video signal source 40, and displays the processed video data. The display device 100 includes the transmitter card 10, the receiver card 20, and the display screen 30 as previously described. The transmitting card 10 is connected to the video signal source 40, and is configured to receive video data input by the video signal source 40, perform sampling and format conversion on the video data, and output the video data to the receiving card 20. The receiving card 20 is connected to the sending card 10, and is configured to receive the video data output by the sending card 10 and perform image processing on the video data. The display screen 30 is connected to the receiving card 20, and is used for receiving and displaying the video data output by the receiving card 20. In some embodiments, the sending card 10 is connected to the receiving card 20 through the internet access 15, and when video data is transmitted between the sending card 10 and the receiving card 20, the internet access arbitration mechanism detects the idle internet access 15 in a polling manner, and after the idle internet access 15 is detected, reads the video data from the storage module 11 through a dma (direct Memory access) mechanism, so that the transmission efficiency of the video data is greatly improved, and the response speed of the display device 100 is further improved.
The plurality of HDMI signal input ports 121 of the transmitting card 10 are connected to the video signal source 40. Since the transmitting card 10 of the present application includes the plurality of HDMI signal input ports 121, the display device 100 including the transmitting card 10 of the present application may be connected to the plurality of video signal sources 40, and the resolutions of the video data input to the display device 100 by the plurality of video signal sources 40 may be different, and the display device 100 may display an image on the display screen 30 at the resolution set by the user.
In some embodiments, if video source 40 and transmitter card 10 are disconnected and transmitter card 10 has no video data input, display 30 displays a message indicating that video source 40 and transmitter card 10 are disconnected, e.g., display 30 has no device signal input after display 30 and transmitter card 10 are disconnected. The video signal source 40 is disconnected from the video decoding chip of the transmitting card 10, the video decoding chip generates a signal indicating that the video signal source is disconnected, and the receiving card 20 generates image information prompting the disconnection of the video signal source in response to the signal to be displayed on the display screen 30. Compared with the prior art that the whole display device does not have any prompt after the transmitting card and the video signal source are disconnected, the display device 100 can inform a user that the video signal source is disconnected, solve the problem that the user in the prior art without prompt confuses whether the transmitting card is damaged or does not have signal input, and improve the user experience.
In some embodiments, the sending card 10 of the present application is connected to a host computer (not shown) through the control module 14, and a user can control the sending card 10 and the receiving card 20 through the host computer. The command sent by the upper computer to the transmitting card 10 is sent to the transmitting card 10 through the SPI interface 134 between the control module 14 and the transmitting card 10. The command sent by the upper computer to the receiving card 20 is sent to the sending card 10 through the SPI interface 134 between the control module 14 and the sending card 10, and then sent to the receiving card 20 through the network interface between the sending card 10 and the receiving card 20.
In some embodiments, the display apparatus 100 includes a remote controller 50, and the remote controller 50 is used to control the transmitting card 10. The user can set the resolution of the video data output by the transmission card 10, select, prioritize the HDMI signal input port 121 of the transmission card 10, and set video parameters such as color temperature, brightness, contrast, etc. of the video data output by the transmission card 10 by operating the remote controller 50. When the user sets the video parameters, the display screen 30 provides a human-computer interface for the user, and displays information such as the HDMI signal input port 121 list and the video data parameter list in a menu form, and the user completes selection of the HDMI signal input port 121, priority setting of the HDMI signal input port 121, and setting of other video data parameters such as video data resolution through the remote controller 50 according to the display information on the display screen 30.
In some embodiments, in the display device 100 including the sending card 10 of the present application, the audio output port 123 of the sending card 10 is connected to an audio device, and when the display screen 30 plays a video, the audio device plays an audio corresponding to the video, so as to improve the viewing experience of the user.
The display device 100 of the present application has a wider application range and is more convenient for the user to use.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (10)
1. A transmitting card applied to a display device, comprising:
the signal receiving module (12) comprises at least three HDMI signal input ports (121) and signal output ports (122), and the signal receiving module (12) is used for receiving video data through the HDMI signal input ports (121), performing format conversion on the received video data, and outputting the video data with set resolution through the signal output ports (122); and
and the signal processing module (13) is connected with the signal output port (122) of the signal receiving module (12) and is used for receiving the video data output by the signal receiving module (12), sampling the received video data, performing format conversion on the sampled data and outputting the sampled data.
2. A transmitter card according to claim 1, characterized in that the signal receiving module (12) comprises an audio output (123) for outputting audio data.
3. The transmitter card of claim 1, wherein the signal receiving module (12) comprises a video decoding chip, the video decoding chip comprising at least three of the HDMI signal input port (121) and the signal output port (122), and being connected to the signal processing module (13).
4. A transmitter card according to claim 3, wherein the video decoder chip is integrated with a television function menu selection module, a zoom configuration module and/or an infrared remote control reception module.
5. The transmitter card according to claim 1, wherein the signal receiving module (12) and the signal processing module (13) are connected by an LVDS interface.
6. A transmitter card according to claim 1, characterized in that the transmitter card (10) comprises a control module (14), the control module (14) and the signal processing module (13) are connected by an SPI interface (134), and the control module (14) is configured to control the signal processing module (13) to output video data.
7. A transmitter card according to claim 1, characterized in that said transmitter card (10) comprises a memory module (11) connected to said signal processing module (13), said memory module (11) comprising at least two DDR3 chips.
8. A transmitter card according to claim 1, characterized in that the transmitter card (10) comprises at least two network ports (15) connected to the signal processing module (13) for outputting video data.
9. A transmitter card according to claim 1, characterized in that the signal processing module (13) comprises a programmable logic device.
10. A display device, comprising:
a transmitter card (10) according to any of claims 1-9; and
the receiving card (20) is connected with the sending card (10) and is used for receiving the video data output by the sending card (10) and carrying out image processing on the video data;
and the display screen (30) is connected with the receiving card (20) and is used for receiving and displaying the video data output by the receiving card (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921867176.1U CN210274280U (en) | 2019-10-31 | 2019-10-31 | Transmitting card and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921867176.1U CN210274280U (en) | 2019-10-31 | 2019-10-31 | Transmitting card and display device |
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| Publication Number | Publication Date |
|---|---|
| CN210274280U true CN210274280U (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921867176.1U Active CN210274280U (en) | 2019-10-31 | 2019-10-31 | Transmitting card and display device |
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| CN (1) | CN210274280U (en) |
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- 2019-10-31 CN CN201921867176.1U patent/CN210274280U/en active Active
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Effective date of registration: 20220622 Address after: 710018 floor 12, northwest regional headquarters of Shiyuan Co., Ltd., north of Fengdong 2nd Road and east of FengHao Avenue, Fengdong new town, Xi'an City, Shaanxi Province Patentee after: QSTECH Co.,Ltd. Address before: 510530 No. 6, Yun Po four road, Whampoa District, Guangzhou, Guangdong. Patentee before: Guangzhou Shiyuan Electronic Technology Company Limited |
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