CN209708603U - Display control card and display system - Google Patents
Display control card and display system Download PDFInfo
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- CN209708603U CN209708603U CN201920348756.3U CN201920348756U CN209708603U CN 209708603 U CN209708603 U CN 209708603U CN 201920348756 U CN201920348756 U CN 201920348756U CN 209708603 U CN209708603 U CN 209708603U
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Abstract
A kind of display control card disclosed by the utility model and a kind of display system.The display control card includes: circuit board；Main power circuit is arranged on the circuit board, and including exchange input connector and the connection exchange output connector for exchanging input connector；Multiple display connector for substrate are arranged on the circuit board, and including multiple DC power signal interfaces and multiple display data and control signaling interface, wherein the multiple DC power signal interface connects the main power circuit；Card functional circuit is received, is arranged on the circuit board, and connects the main power circuit and the multiple display data and control signaling interface；And multiple network interfaces, it is arranged on the circuit board, and connect the reception card functional circuit.A possibility that property easy for installation can be improved in the utility model embodiment, reduces wiring difficulty and goes wrong.
Description
Technical field
The utility model relates to field of display technology more particularly to a kind of display control card and a kind of display systems.
Background technique
In traditional display industry, show that the power supply of lamp plate such as LED lamp panel and display control board are mutually indepedent.
It is the reception card that display control board is divided into separation in addition, having there are more and more Mini core cards the segmenting market
With pinboard (HUB plate).But with the development of LED display industry, point spacing is smaller and smaller, and cabinet is more and more thinner, cost pressure
Increasing, power supply, HUB plate and the reception as core card block scheme mutually indepedent and being applied in combination and have been difficult to meet client
Demand, such as power supply, HUB plate and core card need independently installed, installs inconvenient and bigger to space requirement, wiring
It is complicated, chaotic, it is easy error.
Utility model content
Therefore, the embodiments of the present invention provide a kind of display control card and a kind of display system, and installation can be improved
Convenience, a possibility that reducing wiring difficulty and go wrong.
On the one hand, the utility model embodiment provides a kind of display control card, comprising: circuit board；Main power circuit, if
It sets on the circuit board, and is connected including exchange input connector with the exchange output for exchanging input connector is connected
End；Multiple display connector for substrate are arranged on the circuit board, and including multiple DC power signal interfaces and multiple display numbers
According to and control signaling interface, wherein the multiple DC power signal interface connects the main power circuit；Receive card function electricity
Road is arranged on the circuit board, and connects the main power circuit and the multiple display data and control signaling interface；With
And multiple network interfaces, it is arranged on the circuit board, and connect the reception card functional circuit.
In one embodiment of the utility model, the multiple DC power signal interface is respectively multiple DC power supplies
Connector, and the output DC voltage of each D. C. power connector is not higher than 5V.
In one embodiment of the utility model, the circuit board have first area, second area, third region,
The fourth region, the 5th region and the 6th region；The first area, the second area, the third region and the described 4th
Region is arranged successively along the length direction of the circuit board, and the 5th region and the 6th region are located at the third
Opposite sides of the region in the width direction of the circuit board；Main power circuit setting is described in the first area
Multiple DC power signal interfaces are respectively multiple D. C. power connectors and are arranged in the second area, the reception card function
The setting of energy circuit is arranged in the third region, the multiple network interface in the fourth region, the multiple display data and control
Signaling interface processed is multiple connectors and is arranged in the 5th region and the 6th region.
In one embodiment of the utility model, the display control card further include: multiple signal driving chips, one
The signal driving chip is divided to be arranged between the third region and the 5th region, and signal described in another part drives
Chip is arranged between the third region and the 6th region；And the reception card functional circuit passes through the multiple letter
Number driving chip is separately connected the multiple display data and control signaling interface.
In one embodiment of the utility model, the reception card functional circuit includes programmable logic device, micro-control
Device, ethernet PHY transceiver, nonvolatile memory and DC-DC power supply circuit processed；The ethernet physical layer is received
Hair device is connected between the multiple network interface and the programmable logic device, and the microcontroller connects the programmable logic
Device, the nonvolatile memory connect the programmable logic device and the microcontroller, the DC to DC electricity
Source circuit is used to provide the first direct-current working volts to the programmable logic device and the ethernet PHY transceiver, and
For providing the second direct-current working volts to the microcontroller and the nonvolatile memory.
In one embodiment of the utility model, the display control card further include: 5 pin liquid crystal display interfaces,
It is arranged on the circuit board and connects the microcontroller；First direct-current working volts are 1.2V, second direct current
Operating voltage is 3.3V.
In one embodiment of the utility model, the display control card further include: test key is arranged described
On circuit board and connect the programmable logic device.
In one embodiment of the utility model, the display control card further include: network transformer chip, setting exist
On the circuit board and it is connected between the ethernet PHY transceiver and the multiple network interface.
In one embodiment of the utility model, the multiple DC power signal interface is N number of connector, described aobvious
Registration evidence and control signaling interface are 2N connector, and wherein the value of N is 3,4,6 or 8；The main power circuit it is specified defeated
400 watts to 700 watts of the value range of power out.
On the other hand, a kind of display system provided by the embodiment of the utility model, comprising: display control card as the aforementioned；
And multiple LED display boards, connect the multiple DC power supply of the multiple display connector for substrate of the display control card
Signaling interface and the multiple display data and control signaling interface.
A technical solution in above-mentioned technical proposal has the following advantages that or the utility model has the advantages that the utility model embodiment is logical
It crosses and main power circuit is set on circuit boards, receives card functional circuit and shows connector for substrate etc., and optimize layout to it,
A possibility that property easy for installation can be improved in it, reduces wiring difficulty and goes wrong.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the utility model
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram for the display control card that the utility model first embodiment provides.
Fig. 2 is another structural schematic diagram for the display control card that the utility model first embodiment provides.
Fig. 3 is that the connection of the DC-DC power supply circuit and other elements in reception card functional circuit shown in Fig. 2 is closed
It is schematic diagram.
Fig. 4 a-4e is the main circuit connecting relation figure of the subelement in display control card shown in Fig. 2.
Fig. 5 is the structural schematic diagram for the display system that the utility model second embodiment provides.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
[first embodiment]
As depicted in figs. 1 and 2, the utility model first embodiment provides a kind of display control card 100.The present embodiment provides
Display control card 100 for example can be used to connect display lamp plate such as LED lamp panel with to LED lamp panel provide working power signal and
It shows data and control signal, lightening LED lamp plate and controls the bright dark degree of each LED display pixel in LED lamp panel whereby.
Display control card 100 is for example including circuit board 110, main power circuit 120, multiple display connector for substrate 130, multiple
Network interface 140 and reception card functional circuit 150.
Specifically, circuit board 100 is, for example, printed wiring board (Printed Circuit Board, PCB), has and matches
The features such as line density is high, light-weight, thickness is thin.
Main power circuit 120 is for example including current rectifying and wave filtering circuit, and the AC conversion for being used to input is at direct current, example
The alternating current that voltage is 220V is such as converted into the direct current that voltage is 5V to power to other electrical components.Main power circuit
120 are arranged on circuit board 110.Main power circuit 120 includes exchanging input connector 121 to exchange input connector with connection
121 exchange output connector 123.Exchange input connector 121 access 220V alternating current for the same level display control card 100 and its
It is used with the display lamp plate carried, exchange output connector 123 exports 220V alternating current for rear class display control card 100 and its with load
Display lamp plate use.Specifically, exchange input connector 121 is drawn for example including an input firewire pin and an input zero curve
Foot further includes a grounding pin.Exchange output connector 123 also includes that an output line of fire pin and an output zero curve draw
Foot.The output line of fire pin connects the input firewire pin, and the output zero curve pin connects the input zero curve pin.
It is noted that the main power circuit 120 of the present embodiment can turn electronic component similar in DC power supply using commercially available AC
It builds, therefore details are not described herein for its particular circuit configurations.
Multiple display connector for substrate 130 are arranged on circuit board 110, are used to connect display lamp plate to mention to display lamp plate
For operating voltage and drive control shows that lamp plate carries out picture and shows.Show connector for substrate 130 for example including DC power signal
Interface 131 and display data and control signaling interface 133.DC power signal interface 131 connect main power circuit 120, with from
Main power circuit 120 takes electricity and is not higher than the direct current of 5V with the display lamp plate power supply such as voltage of load to display control card 100,
Than such as from about 4.8V.DC power signal interface 131 is typically multiple (referring to Fig. 1), for example is multiple DC voltage output ends
Mouthful, it can be used for powering to multiple display lamp plates.Multiple DC power signal interfaces 131 for example be respectively connector, in order to
Family shows that the power supply line of lamp plate, line are convenient by quick plug connection.Certainly, each DC power signal interface 131 can also
Think other types of connector such as screw interface, the utility model embodiment is not limited thereto.In addition, single DC power supply
Signaling interface 131 can connect a LED lamp panel, also can connect multiple LED lamp panels.For example, single DC power signal connects
Connecing device 131 is 2 pin connectors and including a positive pin and a negative pin, can be with carrying a LED lamp panel or multiple
Lamp plate.In another example single DC power signal interface 131 is 4 pin connectors, and including two positive pins and two cathode
Pin can also be used the one of LED industry internal standard and more power supply lines is dragged to realize a DC power signal with a lamp plate is carried
Interface 131 can reduce the present embodiment display control card 100 and display lamp plate such as LED with two or more LED lamp panel is carried
Line complexity between lamp plate.Certainly, single DC power signal interface 131 can also be set as according to practical situations
The connector of other quantity pins, the present embodiment are not limited.
Hold it is above-mentioned, show data and control signaling interface 133 be used for LED lamp panel provide display data and control signal with
Corresponding picture is shown in LED lamp panel.Show data and control signaling interface 133 for example including such as red (R), green (G),
The display data output pins such as blue (B) signal and such as enable signal (OE), blanking signal (CTRL), clock signal (CLK)
Etc. relevant control signal output pin.Show data and control signaling interface 133 it is typically multiple, each display data and
Controlling signaling interface 133 is, for example, connector, such as the row-needle receptacle of 16 pins or 26 pins, is shown so as to be connected by soft arranging wire
Registration evidence and control signaling interface 133 and display lamp plate.Certainly, show that data and control signaling interface 133 may be other
The connector of type, the utility model embodiment are not limited thereto.It shows data and controls the quantity of signaling interface 133 for example
It is 6,8,12 or 16 etc..One display data and control signaling interface 133 can be a connector, each connects
The one or more display lamp plates of plug-in unit connection.It is of course also possible to be that multiple display data and control signaling interface 133 are integrated to together
One connector, integrated connector connect multiple display lamp plates.Further, the quantity of DC power signal interface 131 and aobvious
The proportional relationship of quantity of registration evidence and control signaling interface 133.Such as power supply signal output interface 131 is M connector, is shown
Registration according to and control signal output interface 133 be M connector, wherein the value of M is even number greater than 2, such as 4,6,8,12
Or 16 etc.；In another example DC power signal interface 131 is N number of connector, show that data and control signaling interface 133 are 2N and connect
Plug-in unit；Wherein the value of N is the integer such as 3,4,6 or 8 etc. greater than 2.In this way, a DC power signal interface 131
It is connected in parallel with two display data and control signaling interface 133 two display lamp plates of connection namely two display lamp plates same
A DC power signal interface 131 obtains direct-current working volts, and which reduce the quantity of power supply winding displacement, has saved cost, drops
The difficulty of low installation and wiring, improves installation effectiveness.Certainly, DC power signal can also be set according to actual use situation
The quantity and display data of connector 131 and the quantity for controlling signal connector 133, the utility model are not limited.In addition,
400 watts to 700 watts of the value range of the rated output power of main power circuit 120, the value range of this kind of rated output power
The LED that most of model can be compatible with shows lamp plate, and the size of corresponding amount output power can be 6,8,12 with load
Or 16 display lamp plates, it is idle that power is avoided whereby.
Preferably, DC power signal interface 131 and display data and control signaling interface 133 are arranged in circuit board 110
The same side, lamp plate power circuit and picture number can be completed from the same side of display control card 100 with more convenient user in this way
According to the connection of (including display data and controlling signal) route, the convenience of line is improved.
Network interface 140 is arranged on circuit board 110.The picture signal sending device such as connecting sending card of network interface 140,
Card functional circuit 150 is received to obtain picture signal from sending card and be transmitted to.Network interface 140 is, for example, Ethernet interface such as RJ45
Network interface.Network interface 140 or other types of signaling interface for example other be suitable for the signaling interface of distant signal transmission.
Further, as shown in Figure 1, display control card 100 includes multiple network interfaces such as network interface 141 and network interface 142.Network interface 141 and net
Mouth 142, which is separately connected, receives card functional circuit 150.Network interface 141 and network interface 142 can be set into one of them for connect transmission
Card, another is for connecting cascade rear class display control card.Network interface 141 is set for connecting the transmission of the picture signals such as sending card
It is standby, card functional circuit 150 is received to obtain picture signal from sending card and be transmitted to, network interface 142 receives card function for connecting
Circuit 150 and cascade rear class display control card will be will receive that card functional circuit 150 exports and be not belonging to the same level display control
The picture signal of card 100 is transmitted to cascade rear class display control card.Preferably, network interface 141 and network interface 142 are integrated into double network interfaces
Structure is convenient for line.
Card functional circuit 150 is received to be arranged on circuit board 110.It receives card functional circuit 150 and connects main power circuit 120
To take electricity from main power circuit 120.It receives card functional circuit 150 and connects network interface 140, to obtain the figure of input from network interface 140
As signal (such as comprising showing data and field frequency signal etc.).It receives card functional circuit 150 and is also connected with display connector for substrate 130
Data and control signaling interface 133 are shown, to export display lamp plate display data to display data and control signaling interface 133
And control signal.Card functional circuit 150 is received the picture signal obtained from network interface 140 is handled to obtain display lamp plate institute
The display data and control signal needed, and the display data and control signal are passed through into display data and control signaling interface
133 be output to carry display lamp plate so that picture is shown.
Further, as shown in Fig. 2, display connector for substrate 130 further includes signal driving chip 135.Signal driving chip
135 model is, for example, 74HC245.Signal driving chip 135 connects main power circuit 120 to obtain direct-current working volts.This
Outside, signal driving chip 135 can be multiple, show data and control signaling interface 133 is also multiple.Multiple display data and control
Signaling interface 133 processed connects the reception card functional circuit 150 by multiple signal driving chips 135 respectively.So may be used
To enhance the ability of the driving display lamp plate of display control card 100, so that the band load of display control card 100 is more stable.
Hold it is above-mentioned, as shown in Fig. 2, receive card functional circuit 150 include programmable logic device 152, microcontroller 154,
Ethernet PHY transceiver 153 and DC-DC power supply circuit 151.Programmable logic device 152 is, for example, that scene can compile
Journey gate array (FPGA) device, model is, for example, EP3C16F484, and the processing for being mainly used for carrying out picture signal is aobvious to generate
Show that lamp plate shows data and control signal.Microcontroller 154 is, for example, MCU, and model is, for example, GD32F130, is mainly used for
Loading programmable logic device 152 even carries out Temperature and Humidity and voltage detecting etc. by connection sensor.Ethernet object
Reason layer transceiver 153 is connected between such as Ethernet interface of network interface 140 and programmable logic device 152.Microcontroller 154 connects
Connect programmable logic device 152.DC-DC power supply circuit 151 connects main power circuit 120.DC-DC power supply circuit
151 are also connected with programmable logic device 152, microcontroller 154 and ethernet PHY transceiver 153.Main power circuit 120 will
Alternating current is converted into exporting after direct current the voltage of suitable size to DC-DC power supply circuit 151, DC-DC power supply
Circuit 151 direct current of input is carried out after voltage conversion and export to programmable logic device 152, microcontroller 154 and with
Too net physical layer transceiver 153 to programmable logic device 152, microcontroller 154 and ethernet PHY transceiver 153 to supply
Electricity.
In addition, as shown in Fig. 2, receiving card functional circuit 150 further includes such as FLASH of nonvolatile memory 155.It is non-easy
The property lost memory 155 is used to save the data of display control card 100, the loss of data after avoiding 100 power down of display control card.This
Outside, receiving card functional circuit 150 further includes such as SDRAM of volatile memory 156, and volatile memory 156 is for providing number
According to spatial cache.DC-DC power supply circuit 151 be also connected with nonvolatile memory 155 and volatile memory 156 with to
Nonvolatile memory 155 and the power supply of volatile memory 156 (referring to Fig. 3).
Furthermore display control card 100 can also include network transformer chip 170.The setting of network transformer chip 170 exists
On circuit board 110.Network transformer chip 170 is connected between network interface 140 and ethernet PHY transceiver 153.Further
Ground, when network interface 140 is double network interfaces, network transformer chip 170 is additionally attached to double network interfaces and ethernet physical layer transmitting-receiving
Between device 153；In this way, which two Ethernet interfaces share a network transformer chip 170.Certainly, two Ethernets connect
Mouth can not also share a network transformer chip 170, but each Ethernet interface passes through independent network transformer core
Piece 170 connects ethernet PHY transceiver 153.
In addition, display control card 100 can also include liquid crystal display interface 180.The setting of liquid crystal display interface 180 exists
On circuit board 110 and connect microcontroller 154.Liquid crystal display interface 180 is for connecting liquid crystal display for showing control
The status information of fabrication 100 enables users to the working condition for more intuitively understanding display control card 100.In the present embodiment, liquid
Crystal display screen interface 180 such as 5PIN interface or 9PIN interface.
In addition, display control card 100 can also include test key 190.Key 190 is tested to be arranged on circuit board 110
And connection programmable logic device 152.Testing reception card functional circuit 150 of the key 190 for detecting display control card 100 is
It is no working properly.
More specifically, as shown in figure 3, the voltage that exports main power circuit 120 of DC-DC power supply circuit 151 is not high
The direct current that voltage is 3.3V and 1.2V is converted into the direct current of 5V.DC-DC power supply circuit 151 is patrolled to programmable
The direct current that volume device 152 and 153 output voltage of ethernet PHY transceiver are 1.2V, to microcontroller 154, non-volatile
The direct current that memory 155, volatile memory 156, liquid crystal display interface 180 and test 190 output voltage of key are 3.3V
Electricity.
In addition, on circuit layout, as shown in Figure 1, circuit board 110 have region A1, region A2, region A3, region A4,
Region 5 and region A6.Length direction (the vertical side in Fig. 1 of region A1, region A2, region A3 and region A4 along circuit board 110
To) be arranged successively.Region A5 and region A6 is located at region A3 in width direction (the level side in Fig. 1 of circuit board 110
To) on opposite sides.Wherein, main power circuit 120 is located at region A1, and DC power signal interface 131 is arranged in region A2,
The setting of card functional circuit 150 is received in region A3, the setting of network interface 140 shows that data and control signaling interface 133 are set in region A4
It sets in region A5 and region A6.Further, the exchange input connector of main power circuit 120 and exchange output connector (figure
In do not draw) and network interface 140 set up the both ends on the length direction of circuit board 110 separately, both can reduce main power circuit in this way
The signal interference of 120 pairs of network interfaces 140, and can be convenient the cascade cabling of display control card 100.Multiple DC power signal interfaces
131 are arranged in the A2 of region with linescan method.Multiple display data and control signaling interface 133 are arranged in region with linescan method
In A5 and region A6.A part of signal driving chip 135 (referring to Fig. 2) is arranged between region A3 and region A5 and with ranks
Mode is arranged, and another part signal driving chip is arranged between region A3 and region A6 and is arranged with linescan method.Network
Transformer chip 170 (referring to Fig. 2) is arranged between region A3 and region A4.In addition, can also be learnt from Fig. 1: receiving card
Functional circuit 150 is surround by DC power signal interface 131, display data and control signaling interface 133 and network interface 140, this
The layout of circuit components is conducive to protection and receives card functional circuit 150, without the collision damage vulnerable to the external cable of each interface
Wound.
The main circuit connecting relation of subelement a to Fig. 4 e referring to fig. 4 in the present embodiment.Specifically, Fig. 4 a-4c be can
The main circuit connecting relation figure of programmed logic device 152, Fig. 4 d are the main circuit connecting relation figure of microcontroller 154, figure
4e is the main circuit connecting relation figure of ethernet PHY transceiver 153.
In conclusion the utility model above-described embodiment on circuit board 110 by being arranged main power circuit 120, receiving
Card functional circuit 150 and display connector for substrate 130 simultaneously carry out rational deployment, improve property easy for installation, it is difficult to reduce wiring
A possibility that spending and going wrong.The structure can be designed so that the thinner of the LED box configured with LED display lamp plate,
Reduce the occupancy in LED box space.Structure design preferably incorporates upstream and downstream resource, improves the compatibility of product
Property.It, so both can be in addition, set up main power circuit 120 and network interface 140 separately both ends on the length direction of circuit board 110
Reduce main power circuit 120 to the signal interference of network interface 140, and can be convenient the cascade cabling of LED lamp panel.DC power signal
Interface 131 and display data and control signaling interface 133 the same side of circuit board 110 be set, can with more convenient user from
The same side completion lamp plate power circuit and image data (including display data and controlling signal) route of display control card 100
Connection, improves the convenience of line.In addition, determining power, unified standard electricity according to the practical band carrying capacity of minimum unit
The lamp plate quantity that the output interface and fixing belt in source carry carries out optimal design to power supply, promotes the utilization rate of power supply.Furthermore
Multiple DC power signal interfaces 131 are set on circuit board 110, it can be achieved that a display control card 100 is with the multiple LED light of load
Plate reduces number of power sources, saves cost.The cascade number of power supply can be reduced to the integration of power supply, optimize the cloth of system
Office's cloth and cabling.In addition, the structure of display control card 100 designs, be conducive to production and the quality pipe of reinforcing display control card 100
Control, significantly reduces quality risk and cost.
[second embodiment]
As shown in figure 5, the utility model second embodiment provides a kind of display system 10.Display system 10 for example including
Display control card 100 and multiple LED lamp panels 200.
The display control card 100 of the utility model aforementioned first embodiment offer can be used in display control card 100.Display control
Fabrication 100 includes multiple display connector for substrate 130.Multiple LED lamp panels 200 be separately connected multiple display connector for substrate 130 with from
Display control card 100 obtains direct-current working volts and display data and control signal, realizes that picture is shown whereby.
The specific implementation process and technical effect of the utility model embodiment refer to the utility model aforementioned first embodiment
Description, details are not described herein again.
Further, it is to be appreciated that foregoing individual embodiments are only the exemplary illustration of the utility model, in technical characteristic
Do not conflict, structure not contradiction, without prejudice under the premise of the purpose of utility model of the utility model, the technical solution of each embodiment can
In any combination, collocation uses.
In several embodiments provided herein, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multichannel unit or component
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multichannel
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the utility model can integrate in one processing unit,
It can be each unit to physically exist alone, can also be integrated in one unit with two or more units.It is above-mentioned integrated
Unit both can take the form of hardware realization, can also be realized in the form of hardware adds SFU software functional unit.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement；And these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (10)
1. a kind of display control card characterized by comprising
Circuit board；
Main power circuit is arranged on the circuit board, and inputs connection with described exchange is connected including exchange input connector
The exchange output connector at end；
Multiple display connector for substrate are arranged on the circuit board, and including multiple DC power signal interfaces and multiple displays
Data and control signaling interface, wherein the multiple DC power signal interface connects the main power circuit；
Card functional circuit is received, is arranged on the circuit board, and connects the main power circuit and the multiple display data
And control signaling interface；And
Multiple network interfaces are arranged on the circuit board, and connect the reception card functional circuit.
2. display control card as described in claim 1, which is characterized in that the multiple DC power signal interface is respectively more
A D. C. power connector, and the output DC voltage of each D. C. power connector is not higher than 5V.
3. display control card as described in claim 1, which is characterized in that the circuit board have first area, second area,
Third region, the fourth region, the 5th region and the 6th region；The first area, the second area, the third region and
The fourth region is arranged successively along the length direction of the circuit board, and the 5th region and the 6th region are located at
Opposite sides of the third region in the width direction of the circuit board；The main power circuit is arranged in firstth area
Domain, the multiple DC power signal interface is respectively multiple D. C. power connectors and setting in the second area, described
The setting of card functional circuit is received in the third region, the multiple network interface is arranged in the fourth region, the multiple display
Data and control signaling interface are multiple connectors and are arranged in the 5th region and the 6th region.
4. display control card as claimed in claim 3, which is characterized in that further include: multiple signal driving chips, a part of institute
It states signal driving chip to be arranged between the third region and the 5th region, and signal driving chip described in another part
It is arranged between the third region and the 6th region；And the reception card functional circuit is driven by the multiple signal
Dynamic chip is separately connected the multiple display data and control signaling interface.
5. display control card as described in claim 1, which is characterized in that the reception card functional circuit includes programmable logic
Device, microcontroller, ethernet PHY transceiver, nonvolatile memory and DC-DC power supply circuit；The ether
Net physical layer transceiver is connected between the multiple network interface and the programmable logic device, described in the microcontroller connection
Programmable logic device, the nonvolatile memory connects the programmable logic device and the microcontroller, described straight
The DC power supply circuit that circulates is used to provide the first direct current to the programmable logic device and the ethernet PHY transceiver
Operating voltage, and for providing the second direct-current working volts to the microcontroller and the nonvolatile memory.
6. display control card as claimed in claim 5, which is characterized in that further include: 5 pin liquid crystal display interfaces, setting
On the circuit board and connect the microcontroller；First direct-current working volts are 1.2V, second DC operation
Voltage is 3.3V.
7. display control card as claimed in claim 5, which is characterized in that further include: test key is arranged in the circuit board
Above and connect the programmable logic device.
8. display control card as claimed in claim 5, which is characterized in that further include: network transformer chip is arranged described
On circuit board and it is connected between the ethernet PHY transceiver and the multiple network interface.
9. display control card as described in claim 1, which is characterized in that the multiple DC power signal interface is N number of company
Device is connect, the display data and control signaling interface are 2N connector, and wherein the value of N is 3,4,6 or 8；The main power source
400 watts to 700 watts of the value range of the rated output power of circuit.
10. a kind of display system characterized by comprising
Display control card as claimed in any one of claims 1 to 9；And
Multiple LED display boards connect the multiple DC power supply of the multiple display connector for substrate of the display control card
Signaling interface and the multiple display data and control signaling interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920348756.3U CN209708603U (en) | 2019-03-19 | 2019-03-19 | Display control card and display system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920348756.3U CN209708603U (en) | 2019-03-19 | 2019-03-19 | Display control card and display system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209708603U true CN209708603U (en) | 2019-11-29 |
Family
ID=68646776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920348756.3U Active CN209708603U (en) | 2019-03-19 | 2019-03-19 | Display control card and display system |
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