CN111261095A - Connecting assembly, scanning card and display screen system - Google Patents
Connecting assembly, scanning card and display screen system Download PDFInfo
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2370/00—Aspects of data communication
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Abstract
The embodiment of the invention discloses a connecting assembly, which comprises: the first connecting piece and the second connecting piece are arranged in a matched mode, the first connecting piece comprises a first multi-channel data set output pin group, a display control signal output pin group, a power supply pin group and a first grounding pin group, and the second connecting piece comprises a second multi-channel data set output pin group, a multi-channel Ethernet interface pin group and a second grounding pin group. The embodiment of the invention also discloses a scanning card and a display screen system applying the connecting component. The embodiment of the invention can realize the purposes of reducing the external dimension of the scanning card and improving the installation convenience and the electromagnetic compatibility.
Description
Technical Field
The invention relates to the technical field of display, in particular to a connecting assembly, a scanning card and a display screen system.
Background
In the current LED display screen system, a video source sends a video signal to a sending card through a video interface, and then the sending card is responsible for converting the video signal into a digital signal and distributing the digital signal, and outputs the digital signal to each scanning card in different LED boxes connected to the sending card from a plurality of output interfaces. The scanning card stores parameters of an LED box body where the scanning card is located, and after receiving display data, the scanning card can correspondingly twist the received data according to a wiring mode of a lamp panel driving chip carried by the scanning card, and then transmits a generated RGB data set to a data input end of the lamp panel driving chip; the lamp panel driving chip receives the RGB data group and also receives the display control signal sent from the scanning card. The transmission of these RGB data and display control signals requires a large number of bus lines to complete. However, the use of a large number of flat cables not only makes the scanner card and the lamp panel have larger external dimensions, but also increases the failure rate of data transmission. In addition, the flat cable connection mode is redundant and complex, the installation is inconvenient, and the problems of electromagnetic compatibility and the like can be caused.
Disclosure of Invention
The embodiment of the invention provides a connecting component, a scanning card and a display screen system, and aims to achieve the purposes of reducing the overall dimension of the scanning card and improving the installation convenience and electromagnetic compatibility.
In one aspect, an embodiment of the present invention provides a connection assembly, including: the first connecting piece and the second connecting piece are arranged in a matched mode, the first connecting piece comprises a first multi-channel data set output pin group, a display control signal output pin group, a power supply pin group and a first grounding pin group, and the second connecting piece comprises a second multi-channel data set output pin group, a multi-channel Ethernet interface pin group and a second grounding pin group.
In one embodiment of the present invention, the first multiplexed data group output pin group is disposed between ground pins in the first ground pin group, and the second multiplexed data group output pin group is disposed between ground pins in the second ground pin group.
In one embodiment of the present invention, the display control signal output pin group is disposed between the ground pins in the first ground pin group.
In an embodiment of the present invention, the display control signal output pin group includes a clock signal pin and an enable signal pin, and the clock signal pin and the enable signal pin are respectively adjacent to one ground pin of the first ground pin group.
In an embodiment of the invention, the second connector further includes a reserved power pin set disposed between the second multi-way data set output pin set and the multi-way ethernet interface pin set of the second connector.
In an embodiment of the present invention, the second connector further includes a reserved function expansion interface pin set disposed between the second multi-way data set output pin set and the multi-way ethernet interface pin set of the second connector.
In an embodiment of the invention, the first connector further includes a test key and a status indicator light interface pin set disposed between the first multi-channel data set output pin set and the display control signal output pin set.
In one embodiment of the invention, the connecting component is applied to a scanning card, and the scanning card is used for driving an LED display screen.
On the other hand, an embodiment of the present invention provides a scanning card, including: the system comprises a programmable logic device, a microcontroller, a multi-path network PHY chip, a network transformer and a connecting component; the microcontroller is connected with the programmable logic device, the multi-path network PHY chip is connected between the programmable logic device and the network transformer, and the connecting component comprises a first connecting piece and a second connecting piece which are arranged in a matched mode; the first connecting piece comprises a first multi-channel data group output pin group and a display control signal output pin group, the second connecting piece comprises a second multi-channel data group output pin group and a multi-channel Ethernet interface pin group, the programmable logic device is connected with the first multi-channel data group output pin group, the second multi-channel data group output pin group and the display control signal output pin group, and the network transformer is connected with the multi-channel Ethernet interface pin group.
In an embodiment of the invention, the first connector further includes a first ground pin group, the second connector further includes a second ground pin group, the first multi-channel data group output pin group is disposed between ground pins in the first ground pin group, and the second multi-channel data group output pin group is disposed between ground pins in the second ground pin group.
In one embodiment of the present invention, the display control signal output pin group is disposed between the ground pins in the first ground pin group.
In an embodiment of the present invention, the display control signal output pin group includes a clock signal pin and an enable signal pin, and the clock signal pin and the enable signal pin are respectively adjacent to one ground pin of the first ground pin group.
In an embodiment of the present invention, the scan card further includes a test key and an LED status indicator, and the programmable logic device is connected to the test key and the LED status indicator respectively; the first connecting piece further comprises a test key pin and a state indicator light interface pin, the test key pin and the state indicator light interface pin are arranged between the first multi-channel data group output pin group and the display control signal output pin group, and the programmable logic device is further connected with the test key pin and the state indicator light interface pin.
In one embodiment of the present invention, the first connector and the second connector are each a 40-pin male connector.
In another aspect, a display screen system provided in an embodiment of the present invention includes an adapter board, a display screen, and the aforementioned scan card; the adapter plate comprises a second connecting assembly, the adapter plate is connected with the scanning card through the second connecting assembly, and the display screen is connected with the adapter plate.
In one embodiment of the invention, the second connection assembly includes a mating connector female socket.
In an embodiment of the present invention, a plurality of network cable interfaces are disposed on the interposer, and the plurality of network cable interfaces are connected to the plurality of ethernet interface pin sets of the second connector; each path of the Ethernet interface pin group comprises a differential signal pair pin and a shell ground pin.
One of the above technical solutions has the following advantages or beneficial effects: the coupling assembling of aforementioned first embodiment is disposed on the scanning card to this embodiment, and the transmission of display data and control signal between scanning card and keysets (HUB board) no longer adopts the winding displacement connected mode of redundancy complicacy at present to can adopt more convenient way of walking the line such as the PCB line, be convenient for production test, installation and maintenance, also can effectively solve the electromagnetic compatibility problem, also save the cost for the user simultaneously. In addition, the scanning card adopts the coupling assembling of aforementioned embodiment for the scanning card area reduces by a wide margin, and furthest has reduced the height of scanning card, saves space for constrictive box space and lamp interval day by day, in order to satisfy novel LED display market's demand, can make things convenient for nimble applying to pad pasting screen, glass screen, folding screen, grating screen etc..
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 and 2 are schematic pin distributions of connectors provided in a mating connection assembly according to a first embodiment of the present invention;
FIG. 3 is a diagram illustrating a structure of a scan card according to a first embodiment of the present invention;
FIG. 4 is a schematic diagram showing the structure of internal functional blocks of the programmable logic device of FIG. 3;
fig. 5 is a schematic structural diagram of a display screen system according to a third embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
First embodiment
As shown in fig. 1 and 2, a connecting assembly according to a first embodiment of the present invention includes a connecting member JH1 and a connecting member JH2 which are arranged in a mating manner. The connecting part JH1 includes, for example, a power pin group, a first ground pin group, a display control signal output pin group, a first multi-path data group output pin group, and preferably also includes a test key and a status indicator light interface pin group; the connector JH2 includes, for example, a ground pin group, a second multi-path data group output pin group, a multi-path ethernet interface pin group, a second ground pin group, and preferably further includes a reserved function extension interface pin group, a reserved power supply pin group. The grounding pins of the first grounding pin group and the second grounding pin group are dispersedly arranged between the connector JH1 and other pin groups on the connector JH 2.
Specifically, in fig. 1 and 2, EXT _5V is, for example, a 5V power pin of a power pin group, ① area is a second multi-way data group output pin group, ④ area is a first multi-way data group output pin group, for example, a multi-way RGB data group output pin group, for outputting multi-way RGB data signals to drive an LED panel of an LED display screen for image display, each of the multi-way RGB data group output pin groups includes a red data (R) output pin, a green data (G) output pin, and a blue data (B) output pin.
In the above, the ⑤ area is a TEST KEY and status indicator light interface pin group, where TEST _ INPUT _ KEY is a TEST KEY INPUT signal pin, STA _ LED is a status indicator light signal pin, the ⑥ area is a display control signal output pin group, where OE is an enable signal pin, LAT is a latch signal pin, DCLK is a clock signal pin, A, B, C, D, E is a row strobe signal pin, and the ⑦ area is a reserved power pin, and is reserved for a 3.3V power supply provided to the adapter board.
In addition, grounding pins are arranged at two ends of the first multi-path data group output pin group (corresponding to a ④ region) of the connecting piece JH1, and grounding pins are arranged at two ends of the second multi-path data group output pin group (corresponding to a ① region) on the connecting piece JH2, so that the signal of the RGB data group can be ensured to have the shortest and best return path, and the signal output reliability of the RGB data group can be improved.
The position relationship between the pin groups with different functions can also be optimized, for example, as shown in fig. 2, the connector JH2, the test key and the interface pin group of the status indicator lamp (corresponding to ⑤ region) are arranged between the output pin group of the display control signal (corresponding to ⑥ region) and the output pin group of the multi-path data group (corresponding to ④ region), the reserved function expansion interface pin group (corresponding to ② region) is arranged between the output pin group of the multi-path data group (corresponding to ① region) and the ethernet interface pin group (corresponding to ③ region), the reserved power pin (corresponding to ⑦ region) is also arranged between the reserved function expansion interface pin group (corresponding to ② region) and the ethernet interface pin group (corresponding to ③ region).
Connectors JH1 and JH2 of the present embodiment are, for example, 40-pin male connectors, and the function of each pin is defined as shown in table 1 and table 2 below.
TABLE 1 respective Pin function definitions for connector JH1
TABLE 2 respective Pin function definitions of connector JH2
In summary, the first embodiment of the present invention performs functional division and reasonable distribution on the pins of the connecting elements paired in the connecting assembly, so as to reduce the size of the connecting assembly and the space occupied by the connecting assembly, thereby facilitating the wiring and the circuit stability of the circuit to which the connecting assembly is applied, and facilitating the standardization of the definition of the input/output interface.
Second embodiment
As shown in fig. 3, a scanning card 30 provided in a second embodiment of the present invention includes: programmable logic device 31, microcontroller 33, network PHY chips 35a and 35b, network transformer 37, and connection components 39. In addition, some auxiliary devices such as a volatile memory 401 and a non-volatile memory 403 are included, and even additional functional circuits such as a temperature and voltage acquisition circuit 405, a test button 407 and an LED indicator light 409 can be further provided.
The programmable logic device 31 can be a Field Programmable Gate Array (FPGA) device with the model number of EP3C16F484, the microcontroller 33 is connected with the programmable logic device 31, the microcontroller 33 can be an MCU with the model number of GD32F130 (such as an ARM core-based MCU and the like), the network PHY chips 35a and 35b are connected between the programmable logic device 31 and the network transformer 37, such as a two-way gigabit network PHY chip, the connecting component 39 is a connecting component JH1 shown in FIG. 1 and a connecting component JH2 shown in FIG. 2 in a matched arrangement, such as an HST-48002SAR, which is connected with a multi-way Ethernet interface pin set (corresponding to ③ area) of a connecting component JH2, the programmable logic device 31 is connected with a first multi-way data set output pin set (corresponding to ④ area) of a connecting component JH 563 and displays a control signal output pin set (corresponding to ⑥ area) and a second multi-way data set output pin set (corresponding to 3528 area) of the connecting component JH2, the programmable logic device 31 is connected with a Flash memory device 33, a test signal indicating that the programmable logic device is connected with the Flash memory device 31 and the Flash memory device 31, such as a test signal indicating that the Flash memory device is connected with the Flash device, such as a test key device, and the Flash device is connected with the Flash device under test device under the test device under test condition indicating that the test device under test condition indicating that the programmable logic device under test.
The scan card 30 of this embodiment, for example, the scan card, completes communication with the sending card and other cascaded scan cards through two gigabit networks, where the gigabit network signals first pass through the network transformer 37, then pass through the network PHY chips 35a/35b, are converted into media independent interface signals, for example, RGMII signals, by the network PHY chips 35a/35b, and then communicate with the programmable logic device 31. The processing of the data is completed by the programmable logic device 31, the programmable logic device 31 processes the data from the transmitting card or the preceding stage scanning card, converts the data into RGB data group signals and display control signals for controlling the LED panel in the LED display screen, and outputs the RGB data group signals and the display control signals to the LED panel, and the programmable logic device 31 temporarily stores the data in the volatile memory 401. The microcontroller 33 performs the loading of the programmable logic device 31 and may also be responsible for detecting the voltage and temperature, and the non-volatile memory 403 connected to the microcontroller 33 is used to store the program of the programmable logic device 31.
To further understand the scanning card 30 of the present embodiment, the operation of the scanning card will be briefly described with reference to fig. 4: the programmable logic device 31 may be divided into a plurality of internal function modules, such as a data transceiver module, a parameter loading and storing module, a gray scale extraction and correction module, a storage control module, and a scan output module, according to functions. Preferably, the programmable logic device 31 further includes a module management module so that the scan card 30 supports smart module management functions. When the scan card 30 is powered up, the microcontroller 33 reads the programmable logic device 31, such as an FPGA program, from the non-volatile memory 403, and loads the programmable logic device 31. When the programmable logic device 31 is loaded, the scan card 30 enters a normal operation mode, receives data through the network PHY chip, for example, 35a, the data transceiver module extracts data required by itself from the received data packet and caches the data in the volatile memory 401 through the storage control module, and simultaneously, other data is continuously sent to the next-stage scan card through the network PHY chip, for example, 35b in cascade; the FPGA extracts data from the volatile memory 401, performs processing such as gray extraction and correction through the gray extraction and correction module, outputs a display control signal and an RGB data set through the connection assembly 39 after the processing, and normally lights up the LED lamp panel. The non-volatile memory 403 may also store correction data of the LED lamp panel and various related parameters, and these parameters are accessed by the parameter loading and storing module during the data processing process to generate correct scanning data. In the operation process, the microcontroller 33 can also collect temperature and power supply information on the scan card 30, and send the information to the FPGA, and the information can be acquired through upper computer software.
The coupling assembling of aforementioned first embodiment is disposed on the scanning card to this embodiment, and the transmission of display data and control signal between scanning card and keysets (HUB board) no longer adopts the winding displacement connected mode of redundancy complicacy at present to can adopt more convenient way of walking the line such as the PCB line, be convenient for production test, installation and maintenance, also can effectively solve the electromagnetic compatibility problem, also save the cost for the user simultaneously. In addition, the scanning card adopts the coupling assembling of aforementioned embodiment for the scanning card area reduces by a wide margin, and furthest has reduced the height of scanning card, saves space for constrictive box space and lamp interval day by day, in order to satisfy novel LED display market's demand, can make things convenient for nimble applying to pad pasting screen, glass screen, folding screen, grating screen etc.. Moreover, the adoption of the connecting component can also enable the input and output interface of the scanning card to tend to be standardized, thereby being beneficial to the connection between the scanning card and the rear end adapter plate. In addition, the network transformer is integrated on the scanning card, and the network transformer does not need to be placed on a patch panel (HUB panel), so that the wiring difficulty of customers is reduced.
Third embodiment
As shown in fig. 5, a display screen system 50 provided in a third embodiment of the present invention includes: a scanning card 51, an adapter plate 53 and a display screen 55; the adapter board 53 is connected between the scanner card 51 and the display screen 55. The display screen 55 is, for example, an LED display screen, which includes an LED lamp panel or a plurality of LED lamp panels. The scanner card 51 of the present embodiment is, for example, the scanner card 31 of the second embodiment, on which the connecting component 511 is configured, and the connecting component 511 includes, for example, a male connector seat in a matching arrangement. The adapter plate 53 is provided with, for example, a second connecting assembly 531, which also comprises a mating female connector holder, so that the adapter plate 53 and the scanner card 51 are connected to the connecting assembly 511 via the second connecting assembly 531. In addition, the adapter plate 53 further includes a lamp panel interface 532, and the lamp panel interface 532 is used for connecting the display screen 55. The lamp panel interface 532 is connected to the first multi-path data set output pin group of JH1 shown in fig. 1 and the second multi-path data set output pin group of JH2 shown in fig. 2 through the second connection component 531. The light panel interface 532 may be, for example, a 2.54mm double pin interface or other type of connection interface. In addition, the light panel interface 532 may also include a plurality of interfaces to connect to a plurality of light panels of the display screen 55. It should be noted that the patch panel 53 is typically provided with a multi-port 533, such as an RJ45 interface. The multi-path network port 533 is connected to the second connection component 531, and is connected to the multi-path ethernet interface pin group of the JH2 shown in fig. 2 through the second connection component 531; of course, in practical applications, instead of directly providing the RJ45 interface on the patch panel 53, only a signal line for connecting the RJ45 interface may be provided, and in this case, the signal line for connecting the RJ45 interface constitutes the multi-port 533 of the present embodiment. In addition, the connection component 511 on the scan card 51 and the second connection component 531 on the adapter plate 53 may be provided in a reversed manner, that is, the connection component 511 on the scan card 51 is a female connector seat, and the second connection component 531 on the adapter plate 53 is a male connector seat, which is not limited herein.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and the actual implementation may have another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (17)
1. A connection assembly, comprising: the first connecting piece and the second connecting piece are arranged in a matched mode, the first connecting piece comprises a first multi-channel data set output pin group, a display control signal output pin group, a power supply pin group and a first grounding pin group, and the second connecting piece comprises a second multi-channel data set output pin group, a multi-channel Ethernet interface pin group and a second grounding pin group.
2. The connection assembly of claim 1, wherein the first set of multiplexed data set output pins is disposed between ground pins in the first set of ground pins and the second set of multiplexed data set output pins is disposed between ground pins in the second set of ground pins.
3. The connection assembly of claim 1, wherein the set of display control signal output pins are disposed between ground pins in the first set of ground pins.
4. The connection assembly of claim 3, wherein the set of display control signal output pins includes a clock signal pin and an enable signal pin, the clock signal pin and the enable signal pin each being adjacent to one of the first set of ground pins.
5. The connection assembly of claim 1, wherein the second connector further comprises a reserved power pin set disposed between the second multi-way data set output pin set and the multi-way ethernet interface pin set of the second connector.
6. The connection assembly of claim 1, wherein the second connector further comprises a reserved function expansion interface pin set disposed between the second multi-lane data set output pin set and the multi-lane ethernet interface pin set of the second connector.
7. The connection module of claim 1, wherein said first connector further comprises a test key and a status indicator light interface pin set disposed between said first multiplexed data set output pin set and said display control signal output pin set.
8. The connection assembly according to any one of claims 1 to 7, wherein the connection assembly is applied to a scanning card, and the scanning card is used for driving an LED display screen.
9. A scanning card, comprising: the system comprises a programmable logic device, a microcontroller, a multi-path network PHY chip, a network transformer and a connecting component; the microcontroller is connected with the programmable logic device, the multi-path network PHY chip is connected between the programmable logic device and the network transformer, and the connecting component comprises a first connecting piece and a second connecting piece which are arranged in a matched mode; the first connecting piece comprises a first multi-channel data group output pin group and a display control signal output pin group, the second connecting piece comprises a second multi-channel data group output pin group and a multi-channel Ethernet interface pin group, the programmable logic device is connected with the first multi-channel data group output pin group, the second multi-channel data group output pin group and the display control signal output pin group, and the network transformer is connected with the multi-channel Ethernet interface pin group.
10. The scan card of claim 9, wherein the first connector further comprises a first set of ground pins, the second connector further comprises a second set of ground pins, the first set of multiplexed data group output pins being disposed between ground pins in the first set of ground pins, and the second set of multiplexed data group output pins being disposed between ground pins in the second set of ground pins.
11. The scan card of claim 10, wherein the display control signal output pin set is disposed between ground pins in the first ground pin set.
12. The scan card of claim 11, wherein the set of display control signal output pins includes a clock signal pin and an enable signal pin, the clock signal pin and the enable signal pin being respectively adjacent to one of the first set of ground pins.
13. The scan card of claim 9, further comprising a test button and an LED status indicator light, wherein the programmable logic device is connected to the test button and the LED status indicator light, respectively; the first connecting piece further comprises a test key pin and a state indicator light interface pin, the test key pin and the state indicator light interface pin are arranged between the first multi-channel data group output pin group and the display control signal output pin group, and the programmable logic device is further connected with the test key pin and the state indicator light interface pin.
14. The scan card of claim 9, wherein said first connector and said second connector are each 40-pin male connectors.
15. A display screen system comprising an adapter board, a display screen and a scan card according to any one of claims 9 to 14; the adapter plate comprises a second connecting assembly, the adapter plate is connected with the scanning card through the second connecting assembly, and the display screen is connected with the adapter plate.
16. The display screen system of claim 15, wherein the second connection assembly comprises a mating female connector receptacle.
17. The display screen system of claim 15, wherein the adapter board is provided with a plurality of network cable interfaces, and the plurality of network cable interfaces are connected to the plurality of ethernet interface pin sets of the second connector; each path of the Ethernet interface pin group comprises a differential signal pair pin and a shell ground pin.
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| CN201811361158.6A CN111261095A (en) | 2018-11-15 | 2018-11-15 | Connecting assembly, scanning card and display screen system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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Application publication date: 20200609 |