CN207529636U - Display control card, lamp plate and display control program - Google Patents
Display control card, lamp plate and display control program Download PDFInfo
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- CN207529636U CN207529636U CN201721526176.6U CN201721526176U CN207529636U CN 207529636 U CN207529636 U CN 207529636U CN 201721526176 U CN201721526176 U CN 201721526176U CN 207529636 U CN207529636 U CN 207529636U
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Abstract
The utility model is related to a kind of display control card, lamp plate and display control program, the display control card includes：It receives picture frame to be shown and differential signal is sent to the communication interface of lamp plate；It is connect with the communication interface and parses described image frame and generate frame synchronizing signal, display data and the display control signal corresponding to described image frame and the display data and the display control signal are combined into serial signal and the controller exported；It is connect with the controller and the frame synchronizing signal is converted into differential signal and exports and the serial signal is converted into differential signal and the differential signal driver exported.Display data and display control signal are combined into serial signal by controller, and lamp plate is sent in the form of differential signal by communication interface, reduce the deployment of data line and safeguard complexity, improve message transmission rate, so as to improve display data treatment effeciency.
Description
Technical field
The utility model is related to display technology field, more particularly to a kind of display control card, lamp plate and display control system
System.
Background technology
With the continuous development of display technology, LED display is because its operating voltage is low, long lifespan, steady performance
It is widely used in various public places.With the continuous improvement of application requirement, the type and performance of LED display are also constantly more
Newly, the spacing between pixels of display screen is less and less, and the pixel quantity of display screen box body is more and more, and small spacing LED is shown
Display screen is come into being.
At present, the control mode of LED display is to transmit data and display control data to lamp plate by control card, then
The each LED light controlled by the driving chip of lamp plate.The pixel of small space distance LED display screen increases, and needs more to show
Data and data group are controlled, thus needs to dispose more data lines to meet the requirement of display effect, increases deployment
With safeguard complexity, and the transmission rate of transmission mode at present is low, so as to reduce the display data of LED display processing effect
Rate.
Utility model content
Based on this, it is necessary to for current display data treatment effeciency it is low the technical issues of, it is proposed that a kind of display control
Card, lamp plate and display control program.
A kind of display control card, including：
It receives picture frame to be shown and differential signal is sent to the communication interface of lamp plate；
It is connect with the communication interface and parses described image frame and generate the frame synchronization letter corresponding to described image frame
Number, display data and display control signal and the display data and the display control signal are combined into serial signal simultaneously
The controller of output；
It is connect with the controller and the frame synchronizing signal is converted into differential signal and is exported and will be described serial
Signal is converted into differential signal and the differential signal driver exported.
The display control card, which is further included, in one of the embodiments, with the controller connect and stores described show
The memory of registration evidence and display control signal.
In one of the embodiments, the controller be by the display data divide preset quantity data group and
Obtain the controller of the display data and display control signal corresponding with the display data in the data group；The communication
Interface is the communication interface that the differential signal is sent to the lamp plate by differential lines.
The controller is that the display number that round obtains part is distinguished from each data group in one of the embodiments,
According to corresponding display control signal and will be obtained every time from one or more data group part display data and phase
The display control signal answered is combined into serial signal and the controller exported.
The communication interface is that the communication for the feedback data for receiving the lamp plate transmission connects in one of the embodiments,
Mouthful；The controller is to adjust the display data and by the display data after adjustment and accordingly according to the feedback data
Display control signal is combined as the controller of serial signal.
A kind of lamp plate, including：
The communication for receiving the first differential signal and the second differential signal corresponding to picture frame that display control card is sent connects
Mouthful；
It is connect with the communication interface and first differential signal is converted into frame synchronizing signal and by described second
Differential signal is converted into the differential signal driver of serial signal；
The display data of described image frame is connect and parsed from the serial signal with the differential signal driver
Corresponding display control signal and the controller exported with the display data；
It is connect with the controller and according to the frame synchronizing signal, the display data and the display control signal
LED array is driven to show the driver of described image frame；
The LED array of described image frame is connect and shown with the driver.
Described in the lamp plate further includes and connect and detect with the differential signal driver in one of the embodiments,
The feedback data of lamp plate and the detector exported.
The lamp plate, which is further included, in one of the embodiments, with the controller connect and stores the feedback data
Memory；The communication interface be receive the feedback data that the display control card is sent in the form of differential signal and to
The display control card sends the communication interface of the feedback data in the form of differential signal.
A kind of display control program including display control card and lamp plate, further includes：Image is sent to the display control card
Frame and the terminal for receiving the alarm signal that the display control card is sent.
It is time-multiplexed when the display control card sends the differential signal to the lamp plate in one of the embodiments,
Occupy the bandwidth of differential lines first direction；It is poor that the lamp plate is occupied to time division multiplexing during display control card transmission feedback data
The bandwidth of separated time second direction；The display control card is to dynamically distribute the first direction and institute according to current operating mode
State the display control card of the bandwidth of second direction.
Above-mentioned display control card, lamp plate and display control program, display control card is by parsing received picture frame
Generate corresponding frame synchronizing signal, display data and display control signal, and by display data and corresponding display control signal
Serial signal is combined into, then the serial signal generated is sent to lamp plate in the form of differential signal.Reduce data transmission
It the deployment of line and safeguards complexity, message transmission rate is improved, so as to improve display data treatment effeciency.Lamp plate passes through solution
The received differential signal of analysis, obtains corresponding frame synchronizing signal, display data and display control signal, so as to fulfill image
The display of frame improves the display efficiency of picture frame.
Description of the drawings
Fig. 1 is the structure diagram of display control card in one embodiment；
Fig. 2 is the structure diagram of display control card in another embodiment；
Fig. 3 is the structure diagram of lamp plate in one embodiment；
Fig. 4 is the structure diagram of lamp plate in another embodiment；
Fig. 5 is the structure diagram of display control program in one embodiment.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the technical solution of the utility model and advantage is more clearly understood
The utility model is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain this reality
With novel, it is not used to limit the utility model.
With reference to Fig. 1, in one embodiment, display control card 100 includes communication interface 110, controller 120 and difference letter
Number driver 130.It is mutually coupled respectively between communication interface 110, controller 120 and differential signal driver 130.It is explained in detail below
The function of each component part.
It receives picture frame to be shown and differential signal is sent to the communication interface 110 of lamp plate, be used to implement display control
Fabrication 100 is in communication with each other with external.Such as communication interface 110 is used to receive the picture frame to be shown of terminal transmission, and
The picture frame received is transmitted to controller 120 to handle, is additionally operable to receive the difference that differential signal driver 130 transmits
Signal, and the differential signal is sent to lamp plate by differential lines.
Wherein, picture frame is the cell picture for forming dynamic menu.Picture frame to be shown is by display control card
Control the cell picture shown on lamp plate to be realized.Differential signal is a kind of signal form, and a differential signal is to use
One numerical value represents the difference between two physical quantitys.
In one embodiment, communication interface 110 can be specifically in gigabit network interface, USB interface, SD card interface etc. extremely
Few one kind.Communication interface 110 specifically includes at least one of radio network interface and wired network interface.Communication interface 110
The picture frame sent by wireless network or cable network reception terminal.Wireless network, which receives picture frame, can specifically pass through GPRS
Pattern, WIFI patterns, bluetooth mode and mobile data pattern etc..
It is connect with communication interface 110 and parses picture frame and generate frame synchronizing signal, the display data corresponding to picture frame
Serial signal and the controller 120 exported are combined into display control signal and by display data and display control signal.
Specifically, controller 120 is used to receive the picture frame that communication interface 110 is transmitted, and pass through and parse the picture frame
Generate corresponding frame synchronizing signal, display data and display control signal.Controller 120 is additionally operable to believe the frame synchronization generated
Number it is transmitted to differential signal driver 130 so that the frame synchronizing signal is converted into differential signal simultaneously by differential signal driver 130
Output.Controller 120 is additionally operable to the display data that will be generated and display control signal is combined into serial signal, and will be generated
Serial signal transfer to differential signal driver 130 so that the serial signal is converted into difference by differential signal driver 130
Signal.
Wherein, frame synchronizing signal is used for the display data simultaneous display that will belong to same picture frame.Display data is to be used for
LED light is directly driven to show so that lamp plate shows the data of picture frame to be shown.Display control signal is used to control lamp plate
How corresponding picture frame is shown according to the display data received.Display control signal specifically can include row selects signal,
Data clock, data latch, data enable signal and horizontal blanking signal etc..Serial signal is that each data are in order in transmission process
The signal being transmitted.
In one embodiment, controller 120 can be programmable logic device or integrated circuit plate, may be used also
To be circuit that multiple discrete components are formed by connecting.Programmable logic device can be specifically microcontroller, FPGA (Field
Programmable Gate Array, i.e. field programmable gate array), (Programmable Array Logic, can compile PAL
Journey array logic), PLD (programmable logic device, programmable logic device), CPLD (Complex
Programmable Logic Device, Complex Programmable Logic Devices), DSP (Digital Signal Processor, i.e.,
Digital signal processor), MCU (Microcontroller Unit, micro-control unit) and MPU (Microprocessor
Unit, microprocessor) etc..
In one embodiment, controller 120 is additionally operable to be believed display data and display control according to predefined sequence
Number carry out serial combination.Predefined is pre-defined agreement.The serial signal of 120 combination producing of controller can be specifically aobvious
Show that control signal is first, display data is first in rear or display data, and display control signal is rear.
In one embodiment, multiple display control parameters are included in the display control signal that controller 120 is generated.Control
Device 120 processed can also be used to carry out multiple display control parameter and display data the serial combination of different order.Controller 120
Can be specifically that multiple display control signal is first subjected to serial combination, then the display control serial number that serial combination is formed
According to carrying out serial combination or multiple display control parameter and display data being carried out at the same time serial group with display data
It closes.
In one embodiment, multiple display control parameters that the display control signal that controller 120 is generated includes and
Display data is corresponding with respective Data Identification respectively.Controller 120 is when carrying out serial combination, by each data and corresponding number
Adjacent serial combination is carried out according to mark, can be specifically that the posterior mode of the first data of Data Identification is combined, so as to
Different data are distinguished according to Data Identification.
It is connect with controller 120 and frame synchronizing signal is converted into differential signal and exports and is converted into serial signal
Differential signal and the differential signal driver 130 exported.Differential signal driver 130 is used to receive what controller 120 was transmitted
Frame synchronizing signal, and the frame synchronizing signal received is converted into differential signal, then by the differential signal transmission to communication interface
110.Differential signal driver 130 is additionally operable to receive the serial signal that controller 120 is transmitted, and for the serial signal to be converted into
Communication interface 110 is transmitted to after differential signal again, so that the differential signal is sent to lamp plate by communication interface 110.
In one embodiment, differential signal driver 130 can be specifically DS90LV011A, DS90LV012A,
The chip of the types such as DS90LT012A and DS90LV047A.
Above-mentioned display control card generates corresponding frame synchronizing signal, display data by parsing received picture frame
And display control signal, and display data and corresponding display control signal are combined into serial signal, then the string that will be generated
Row signal is sent to lamp plate in the form of differential signal.Reduce the deployment of data line and safeguard complexity, improve number
According to transmission rate, so as to improve display data treatment effeciency.Lamp plate is obtained corresponding by parsing received differential signal
Frame synchronizing signal, display data and display control signal, so as to fulfill the display of picture frame, improve the display effect of picture frame
Rate.
As shown in Fig. 2, in one embodiment, above-mentioned control card 100 is further included to connect and store with controller 120 and be shown
The memory 140 of registration evidence and display control signal.
Specifically, memory 140 is used to receive frame synchronizing signal, display data and display control that controller 120 is transmitted
Signal processed, and store received frame synchronizing signal, display data and display control signal.
In one embodiment, memory 140 is additionally operable to storage computer program so that controller 120 is by reading simultaneously
The computer program is performed, so as to fulfill to picture frame and display data corresponding with the picture frame and display control signal
Processing.
In one embodiment, memory 140 can specifically include memory and flash memory.Memory can be used for storing display control
Frame synchronizing signal, display data and display control signal for generating in real time in the process etc..Flash memory can be used for storing computer program
With display control signal etc. so that after display control card 100 powers off, corresponding data can still preserve in a flash memory.
In the above-described embodiments, the frame synchronizing signal that computer program and controller is generated, display data and aobvious
Show that control signal preserves in memory, when carrying out when being further processed of data, corresponding number is read directly from memory
According to improving data-handling efficiency.
In one embodiment, controller 120 is that display data is divided the data group of preset quantity and obtains data group
In display data and display control signal corresponding with display data controller；Communication interface 110 is to lead to differential signal
Cross the communication interface that differential lines are sent to lamp plate.
Wherein, preset quantity is preset grouping numerical value, such as 8 groups.Data group is by multiple display data groups
Close the data acquisition system formed.
Specifically, controller 120 is additionally operable to be grouped the display data of picture frame, obtains the data of preset quantity
Group.Controller 120 is additionally operable to obtain the display data in the data group and the display control signal corresponding to the display data, and
The acquired display data and display control signal are combined into after serial signal and are transmitted to differential signal driver 130 again.
Communication interface 110 is additionally operable to receive the differential signal that differential signal driver 130 is transmitted, and the differential signal is passed through difference
Line is sent to lamp plate.
In one embodiment, the transmission rate of differential lines is usually in more than 100Mbit/S.Specifically, communication interface 110
It is additionally operable to send differential signal to lamp plate with the transmission voltage of 250mv and with 120Mbit/S transmission rates, when can be obtained
Clock frequency is 17.9Mbit/S, improves display data transmissions and processing capacity.
In the present embodiment, controller is used to be grouped display data, and is obtained respectively from the data group that grouping obtains
Display data and corresponding display control data, then acquired display data and the synthesis of display control data group are serially believed
Number, then by communication interface by obtained multiple serial signals it is parallel be sent to lamp plate, further improve display data
Processing and efficiency of transmission.
In one embodiment, controller 120 be from each data group distinguish round obtain part display data and
Corresponding display control signal and by the display data of the part obtained every time from one or more data group and corresponding
Display control signal is combined into serial signal and the controller exported.
Wherein, round is to obtain display data successively in turn in order from front to back in each data group.Part is each
A part for display data in a data group.Part can be specifically a line display data in data group or more
Row display data can also be all number of data lines evidences in data group.
Specifically, it after controller 120 by display data for being divided into multiple data groups of preset quantity, is additionally operable to distinguish
Local display data and corresponding display control signal are obtained from each data group.Multiple data group can correspond to respectively
There are respective differential lines, the local display data and corresponding display that controller 120 is additionally operable to that each data group will be belonged to are controlled
Signal processed is combined into serial signal and is transmitted to differential signal driver 130, and differential signal driver 130 is additionally operable to this is serial
Signal is converted into differential signal, so that the differential signal is sent to lamp plate by communication interface 110 by corresponding differential lines.
Further, since the display control signal corresponding to the local display data in each data group is identical, control
It is common that device 120 can be additionally used in the local display data and corresponding display control signal that will be respectively obtained from multiple data groups
Serial combination is into serial signal, so that the serial signal is converted into differential signal, then communication interface by differential signal driver 130
The differential signal is sent to lamp plate by 110 by corresponding differential lines.
In one embodiment, when the display data that multiple data groups are included in the serial signal generated is shown with corresponding
When showing control signal, since the corresponding display control signal of display data in multiple data group is identical, controller 120
It is additionally operable to the multiple display datas that will be obtained from multiple data groups and common control signal is combined into serial signal, is i.e. the string
Only reduce the data volume of serial signal comprising one group of control signal in row signal, improve serial signal combined efficiency, embody
It is static not transmit, the output transmission mode of dynamic high-efficiency coding.
In one embodiment, controller 120 is additionally operable to obtain a line display data respectively from each data group successively
With corresponding display control signal, and corresponding serial signal is generated according to acquired display data and display control signal,
So that the corresponding serial signal of each data group is converted into differential signal by differential signal driver 130, then communication interface 110 will
The differential signal is sent to lamp plate by corresponding differential lines.What deserves to be explained is controller 120 obtains part from data group
During display data, it is not limited to above-mentioned a line indicated or multirow.
In one embodiment, controller 120 is also combined into serially with by display data and corresponding display control signal
Signal, communication interface 110 are additionally operable to the serial signal after combining being sent to lamp by differential lines in the form of differential signal
Plate reduces the deployment of differential lines, improves data transmission efficiency.The differential lines of the differential signal transmission can be known as UDB
(Unified Display BUS, unified show bus).
In the above-described embodiments, controller from each data group for obtaining local display data and corresponding respectively
Display control signal, then serial signal is respectively combined into, and be transmitted to differential signal driver.Differential signal driver is used for will
The serial signal of controller generation is converted into differential signal and is transmitted to communication interface, so that communication interface should by differential lines
Differential signal is sent to lamp plate.Lamp plate is shown in real time according to the display data and display control signal of the part, is improved
Display data processing capacity.And by by the local display data in multiple data groups and corresponding display control signal group
A serial signal is synthesized, then is uniformly sent to lamp plate, the bandwidth of differential lines is effectively utilized, reduces the deployment of differential lines.
In one embodiment, communication interface 110 is to receive the communication interface for the feedback data that lamp plate is sent；Controller
120 be to adjust display data according to feedback data and be combined as the display data after adjustment and corresponding display control signal
The controller of serial signal.
Wherein, feedback data is the lamp plate information that lamp plate feeds back to control card.Feedback data can be specifically lamp onboard led
The correction coefficient of array.Correction coefficient is used to represent the display capabilities of each LED light in LED array.It is adjusted according to correction coefficient
Display data can allow the display effect of LED light to reach unanimity.
Specifically, communication interface 110 is additionally operable to receive the feedback data that lamp plate is sent, and passing the feedback data received into
Transport to controller 120.Controller 120 is additionally operable to adjust corresponding display data according to the feedback data received, and will adjustment
Display data and corresponding display control signal afterwards is combined as serial signal, then serial signal transfer to differential signal is driven
Device 130, so that the serial signal is converted into differential signal and exported by differential signal driver 130.
In one embodiment, feedback data can be the status data of lamp plate.Status data can be specifically in lamp plate
Whether usage time of the LED light of damage, the temperature of lamp plate and lamp plate etc. at least one of is deposited.Controller 120 be additionally operable to by
Received feedback data is compared with predetermined threshold value, when feedback data is more than predetermined threshold value, is directed to terminal transmission
The warning information of the feedback data.Wherein, predetermined threshold value is for the different preset standards of comparison of status data.Warning information
For identifying corresponding status data more than predetermined threshold value.
In the above-described embodiments, controller is used to adjust the display data of picture frame according to the feedback data of lamp plate, and will
Display data and corresponding display control signal after the adjustment are combined into serial signal, then communication interface with the shape of differential signal
Formula is sent to lamp plate, so that the LED array brightness on lamp plate is shown uniformly, improves display effect.
As shown in figure 3, in one embodiment, lamp plate 300 includes communication interface 310, differential signal driver 320, control
Device 330 processed, driver 340 and LED array 350.Communication interface 310 and controller 330 connect respectively with differential signal driver 320
It connects, controller 330 and LED array 350 connect respectively with driver 340.The function of each component part is described in detail below.
Receive the communication for the first differential signal and the second differential signal corresponding to picture frame that display control card 100 is sent
Interface 310.Communication interface 310 is used to receive display control card 100 is sent by communication interface 110 correspond to picture frame the
One differential signal and the second differential signal, and transmit it to differential signal driver 320.Wherein, the first differential signal and
Two differential signals are the expression signal forms for being different from other differential signals.
In one embodiment, communication interface 310 can be specifically at least one of wireless interface and wireline interface.It is logical
Believe that interface 310 can receive the differential signal that display control card 100 is sent by wireless network.Wireless network receives differential signal
GPRS patterns, WIFI patterns, bluetooth mode and mobile data pattern etc. can specifically be passed through.Communication interface 310 can also pass through
Data line receives the differential signal that display control card 100 is sent.
It is connect with communication interface 310 and the first differential signal is converted into frame synchronizing signal and turns the second differential signal
Change the differential signal driver 320 of serial signal into.Differential signal driver 320 is used for transmitted communication interface 310 the
One differential signal is converted into corresponding frame synchronizing signal, and is transmitted to controller 330.Differential signal driver 320 be additionally operable to by
The second differential signal that communication interface 310 is transmitted is converted into corresponding serial signal, and is transmitted to controller 330, so that control
Device 330 processed handles the serial signal.
In one embodiment, differential signal driver 130 can be specifically DS90LV011A, DS90LV012A,
The chip of the types such as DS90LT012A and DS90LV047A.
Connect with differential signal driver 320 and parsed from serial signal picture frame display data and with display
The corresponding display control signal of data and the controller 330 exported.Controller 330 is used to receive 320 institute of differential signal driver
The frame synchronizing signal of transmission, and the frame synchronizing signal is transmitted to driver 340.Controller 330 is additionally operable to receive differential signal
The serial signal that driver 320 is transmitted, and the serial signal is parsed, so as to be corresponded to according to the serial signal
The display data of picture frame and display control signal corresponding with the display data, then the display data obtained and display are controlled
Signal transmission processed is to driver 340.
In one embodiment, controller 330 can be programmable logic device or integrated circuit plate, may be used also
To be circuit that multiple discrete components are formed by connecting.Programmable logic device can be specifically microcontroller, FPGA (Field-
Programmable Gate Array, i.e. field programmable gate array), (Programmable Array Logic, can compile PAL
Journey array logic), PLD (programmable logic device, programmable logic device), CPLD (Complex
Programmable Logic Device, Complex Programmable Logic Devices), DSP (Digital Signal Processor, i.e.,
Digital signal processor), MCU (Microcontroller Unit, micro-control unit) and MPU (Microprocessor
Unit, microprocessor) etc..
It is connect with controller 330 and LED array is driven to show according to frame synchronizing signal, display data and display control signal
Show the driver 340 of picture frame.Driver 340 is used to receive the frame synchronizing signal of the transmission of controller 330, is additionally operable to receive control
The display data and the display control signal corresponding to display data that device 330 transmits.Driver 340 is additionally operable to received by
Frame synchronizing signal, display data and display control signal driving LED array so that LED array shows corresponding picture frame.
In one embodiment, driver 340 includes line driver and row driver.Driver 340 can be specifically
At least one of 74HC138,74HC245, AMD4953, MBI5024,74HC04,74HC595 and the chips such as 4953.
The LED array 350 of picture frame is connect and shown with driver 340.LED array 350 is used to be sent according to driver
Frame synchronizing signal, display data and display control signal show corresponding picture frame.LED array 350 is specifically by multiple LED
Lamp group, which is closed, to be formed.
In above-mentioned lamp plate, differential signal driver is used for the first differential signal for sending display control card and the second difference
Signal is converted into corresponding frame synchronizing signal and serial signal respectively, and is transmitted to controller.Controller is used for from serial signal
In parse display data and display control signal, and be transmitted to driver.Driver is used to be believed according to the frame synchronization received
Number, display data and display control signal driving LED array show corresponding picture frame.Realize the synchronization of lamp plate epigraph frame
It has been shown that, improves data receiver efficiency, so as to improve display data treatment effeciency.
As shown in figure 4, in one embodiment, above-mentioned lamp plate 300 further include connect with differential signal driver 320 and
Detect the feedback data of lamp plate and the detector 360 exported.
Specifically, detector 360 is used to detect and obtain the feedback data of lamp plate, and acquired feedback data is transmitted
To differential signal driver 320, so that the feedback data is converted into differential signal by differential signal driver 320, then by communicating
Interface 310 is sent to display control card 100.
In one embodiment, communication interface 310 receives display control card 100 by communication interface 110 with differential signal
Form send feedback data obtain signal, and by the feedback data acquisition signal transmitted by differential signal driver 320
To detector 360, so that detector 360 detects and obtains corresponding feedback data.Detector 360 is additionally operable to will be acquired anti-
Feedback data communication interface 310 is transmitted to by differential signal driver 320 so that communication interface 310 by the feedback data with difference
The form of sub-signal is sent to display control card 100.
In one embodiment, detector 360 is additionally operable to the feedback data of active detecting lamp plate, and by acquired feedback
Data are sent to display control card 100 by communication interface 310 in the form of differential signal.Detector 360 can be additionally used in institute
The feedback data of acquisition is compared with preset condition, when feedback data meets preset condition, which is sent to aobvious
Show control card 100, so as to fulfill the prediction to 300 service condition of lamp plate.
As shown in figure 4, in one embodiment, above-mentioned lamp plate 300, which is further included, with controller 330 connect and stores feedback
The memory 370 of data；Communication interface 310 be receive display control card 100 sent in the form of differential signal feedback data,
And the communication interface of feedback data is sent in the form of differential signal to display control card 100.Specifically, memory 370 is used for
The feedback data that storage detector 360 is transmitted.
In one embodiment, when the feedback data of display control card 100 to the transmission acquisition feedback data of lamp plate 300 obtains
During signal, controller 330 is additionally operable to read feedback data from memory 370 and passes through communication interface 310 with differential signal
The feedback data is sent to display control card 100 by form.Memory 370 is additionally operable to storage computer program, so that controller
330 from the memory 370 by reading and perform corresponding computer program, realizes at the data such as parsing to serial signal
Reason.
In one embodiment, memory 370 is additionally operable to store preset time conditions, is additionally operable to storage lamp plate 300
Usage time.Controller 330 is additionally operable to read the usage time of preset time conditions and lamp plate 300 from memory 370.When
When the usage time of lamp plate 300 meets the preset time conditions, controller 330 is additionally operable to stop sending to driver 340 aobvious
Registration evidence and corresponding display control signal, to stop display of the lamp plate 300 for picture frame.Wherein, time conditions are greater than
Or equal to preset time point, such as more than or equal to the year two thousand twenty or from the preset time period for the first time using, than
It such as says 10 years.
In one embodiment, communication interface 310 be additionally operable to receive display control card 100 sent in the form of differential signal
Display unlocking signal, and pass through differential signal driver 320 and be transmitted to controller 330.Controller 330 is additionally operable to according to being connect
Display unlocking signal, display data and the display control signal received shows corresponding picture frame.
In one embodiment, communication interface 310 be additionally operable to receive display control card 100 sent by communication interface 110
Feedback data, and pass through differential signal driver 320 and be transmitted to memory 370 so that the storage of memory 370 received it is anti-
Present data.
In above-described embodiment, memory is for storing feedback data, convenient for the storage and reading of feedback data, and by communicating
The feedback data mutually sent between interface display control card and lamp plate improves the efficiency of transmission of feedback data.
As shown in figure 5, in one embodiment, provide a kind of display control program 500.With reference to Fig. 5, the display control
System 50 includes display control card 100 and lamp plate 300, further includes：Picture frame is sent to display control card and receives display control
Block the terminal 500 of the alarm signal sent.
Specifically, terminal 500 is used to send picture frame to be shown to display control card 100.100 basis of display control card
Picture frame generation is corresponding to frame synchronizing signal, display data and the display control signal of the picture frame, the display that will be generated
Data and display control signal are combined into serial signal, and by frame synchronizing signal and serial signal respectively in the form of differential signal
It is sent to lamp plate 300.After lamp plate 300 receives the differential signal of the transmission of display control card 100, it is converted into frame synchronizing signal respectively
And serial signal, and corresponding display data and display control signal are parsed from serial signal, further according to acquired frame
Synchronizing signal, display data and display control signal show corresponding picture frame.
Further, terminal 500 is additionally operable to receive the alarm signal that display control card 100 is sent.Display control card 100 is also
For receiving the feedback data of the transmission of lamp plate 300, and the feedback data received is compared with preset condition.Work as feedback data
When meeting preset condition, display control card 100 is additionally operable to generate corresponding alarm signal according to the feedback data, and alerting this into
Signal is sent to terminal 500.
In one embodiment, terminal 500 can be specifically fixed terminal or mobile terminal, and mobile terminal can be specifically
At least one of mobile phone, tablet computer and laptop etc., fixed terminal can be specifically desktop computers.
In above-described embodiment, display control card receives the picture frame that terminal is sent, and is sent out after handling the picture frame
It send to lamp plate and is shown, improve the display efficiency of picture frame.Further, display control card receives anti-transmitted by lamp plate
Data are presented, corresponding alarm signal are generated, and be sent to terminal according to the feedback data so that terminal can understand lamp plate in time
Operating status.
In one embodiment, it is time-multiplexed when display control card 100 sends differential signal to lamp plate 300 and occupies differential lines
The bandwidth of first direction；Lamp plate 300 is time-multiplexed when sending feedback data to display control card 100 and occupies differential lines second direction
Bandwidth；Display control card 100 be according to current operating mode dynamically distribute first direction and second direction bandwidth it is aobvious
Show control card.
Specifically, display control card 100 is additionally operable to send difference letter to lamp plate 300 by the bandwidth of differential lines first direction
Number, lamp plate 300 is additionally operable to send the corresponding difference of feedback data to display control card 100 by the bandwidth of differential lines second direction
Signal.Display control card 100 is additionally operable in a time multiplexed manner, and first party is dynamically distributed according to the differential signal of current transmission
To the bandwidth with second direction.
In one embodiment, display control card 100 is additionally operable to receive the lamp plate that terminal 500 is sent before picture frame is sent
300 feedback data, and the feedback data is sent to lamp plate 300 so that lamp plate 300 stores the feedback data.Tool
Body, when display control card 100 is used to send feedback data to lamp plate 300, occupy the band of differential lines first direction 100%
It is wide.When display control card 100 is for sending the differential signal for controlling the display of lamp plate 300 to lamp plate 300, differential lines are occupied
The bandwidth of first direction 90%.When lamp plate 300 is used to send feedback data to display control card 100, differential lines second are occupied
The bandwidth in direction 90%.
In above-described embodiment, display control card 100 is used in differential lines differential signal transmission in a time multiplexed manner,
Data transmission efficiency is improved, further reduces the deployment of differential lines, so as to reduce the trouble point of data line, and
Electro Magnetic Compatibility is optimized, effectively reduces electromagnetic radiation.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Embodiment described above only expresses the several embodiments of the utility model, and description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent range.It should be pointed out that the common skill for this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of display control card, which is characterized in that including：
It receives picture frame to be shown and differential signal is sent to the communication interface of lamp plate；
It is connect with the communication interface and parses described image frame and generate the frame synchronizing signal corresponding to described image frame, show
Registration evidence and display control signal and by the display data and the display control signal be combined into serial signal and export
Controller；
It is connect with the controller and the frame synchronizing signal is converted into differential signal and is exported and by the serial signal
It is converted into differential signal and the differential signal driver exported.
2. display control card according to claim 1, which is characterized in that further include and connect and store with the controller
The memory of the display data and display control signal.
3. display control card according to claim 1, which is characterized in that the controller is to divide the display data
The data group of preset quantity and the display data in the acquisition data group and display control corresponding with display data letter
Number controller；
The communication interface is that the differential signal is sent to the communication interface of the lamp plate by differential lines.
4. display control card according to claim 3, which is characterized in that the controller is distinguished from each data group
Round obtains local display data and corresponding display control signal and will every time be obtained from one or more data group
Part display data and corresponding display control signal be combined into serial signal and export controller.
5. display control card according to claim 1, which is characterized in that the communication interface is to receive the lamp plate to send
Feedback data communication interface；The controller is according to the feedback data adjustment display data and after adjusting
Display data and corresponding display control signal be combined as the controller of serial signal.
6. a kind of lamp plate, which is characterized in that including：
Receive display control card send corresponding to the first differential signal of picture frame and the communication interface of the second differential signal；
It is connect with the communication interface and first differential signal is converted into frame synchronizing signal and by second difference
Signal is converted into the differential signal driver of serial signal；
Connect with the differential signal driver and parsed from the serial signal described image frame display data and with
The corresponding display control signal of the display data and the controller exported；
It connect with the controller and is driven according to the frame synchronizing signal, the display data and the display control signal
LED array shows the driver of described image frame；
The LED array of described image frame is connect and shown with the driver.
7. lamp plate according to claim 6, which is characterized in that further include and connect and examine with the differential signal driver
Survey the feedback data of the lamp plate and the detector exported.
8. lamp plate according to claim 7, which is characterized in that further include connect and store with the controller it is described anti-
Present the memory of data；
The communication interface is to receive the feedback data that the display control card is sent in the form of differential signal and shown to described
Show that control card sends the communication interface of the feedback data in the form of differential signal.
9. a kind of display control program, which is characterized in that including the display control card as described in any one of claim 1 to 5
With such as claim 6 to 8 any one of them lamp plate, further include：It is sent described in picture frame and reception to the display control card
The terminal for the alarm signal that display control card is sent.
10. system according to claim 9, which is characterized in that the display control card sends the difference to the lamp plate
Time division multiplexing occupies the bandwidth of differential lines first direction during sub-signal；The lamp plate sends feedback data to the display control card
When time division multiplexing occupy differential lines second direction bandwidth；The display control card is according to current operating mode dynamic allocation
The display control card of the bandwidth of the first direction and the second direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721526176.6U CN207529636U (en) | 2017-11-15 | 2017-11-15 | Display control card, lamp plate and display control program |
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| CN201721526176.6U CN207529636U (en) | 2017-11-15 | 2017-11-15 | Display control card, lamp plate and display control program |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109448633A (en) * | 2019-01-07 | 2019-03-08 | 卡莱特（深圳）云科技有限公司 | A kind of special shaped LED display screen Display Realization control method and realize system |
| CN112259044A (en) * | 2020-10-30 | 2021-01-22 | 深德彩科技(深圳)股份有限公司 | Display control method and related device of LED display assembly |
-
2017
- 2017-11-15 CN CN201721526176.6U patent/CN207529636U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109448633A (en) * | 2019-01-07 | 2019-03-08 | 卡莱特（深圳）云科技有限公司 | A kind of special shaped LED display screen Display Realization control method and realize system |
| CN112259044A (en) * | 2020-10-30 | 2021-01-22 | 深德彩科技(深圳)股份有限公司 | Display control method and related device of LED display assembly |
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