CN105047134B - LED lamp panel, lamp plate module and LED display control system - Google Patents
LED lamp panel, lamp plate module and LED display control system Download PDFInfo
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- CN105047134B CN105047134B CN201510514356.1A CN201510514356A CN105047134B CN 105047134 B CN105047134 B CN 105047134B CN 201510514356 A CN201510514356 A CN 201510514356A CN 105047134 B CN105047134 B CN 105047134B
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Abstract
The present invention relates to LED lamp panel, lamp plate module and LED display control system, the LED display control system includes：Sending card, receive card and multiple lamp plate modules.At least one LED lamp panel in each lamp plate module includes：Circuit board and LED drive circuit on circuit boards, multiple color LED points and data processing and control signal generation unit are set.Data processing and control signal generation unit electrically connect LED drive circuit and reception blocks, and are shown for receiving the packet from reception card by single port and going out view data according to resolve packet and produce control signal and export view data and control signal to LED drive circuit with the multiple color LED point progress image of drive control.The present invention is served as specific drive control by data processing and control signal generation unit, is eliminated the drive control work that card is received in traditional mode, can be greatly reduced the use for receiving wire rod between card and lamp plate module.
Description
Technical field
The present invention relates to technical field of LED display, more particularly to a kind of LED lamp panel, a kind of lamp plate module and a kind of LED
Display screen control system.
Background technology
Existing LED display control system includes video source, sending card and LED display substantially.Wherein, LED shows
Display screen is generally formed by multiple box body splicings, and each casing is spliced by multiple lamp plate modules again, and each lamp plate module
By one or cascade multiple LED lamp panels form；In addition, each casing is also configured with receiving card, (or scanning board, it is one kind
LED display control boards) and Hub cards (or pinboard)；Receive card connection Hub cards, and Hub cards be then connected to it is each in casing
Individual lamp plate module, it is used in this Hub card mainly as Interface Expanding.
In existing LED display synchronous control system, the vision signal that video source provides is sent by video signal interface
Enter sending card, sending card is situated between after being cut according to its scope with load to each frame image data by netting twine or other transmission
Matter delivers to reception card, receives the cabling that clamping receives lamp plate driving chip of casing according to where it after the view data of well cutting
Mode is reversed and exported accordingly to the view data received, reaches the purpose correctly shown；Also carried on a shoulder pole in addition, receiving card
Appoint the work such as the display control of lamp plate module.In this way, then receive just needs to configure view data transmission between card and lamp plate module
Line and control signal send line.
Generally, receive the signal transmitted between card and lamp plate module and include multigroup RGB data, additional clock signal clk, latch
The control signal such as signal LAT, polarity selection signal OE, row selection signal A, B, C, this to receive and blocked between lamp plate module
Winding displacement connection quantity increase, it not only causes the unreliability increase that view data transmits, and in the feelings of multiple lamp plate modules
Winding displacement connected mode also seems that redundancy is complicated under shape.Fig. 1 is referred to, it is the display of the single casing of four lamp plate module compositions
Drive control configuration diagram.
Therefore, in existing display drive control framework, following some problems be present：
(1) each single-ended signal needs to take single line core, causes the core quantity of winding displacement more, is swept with a routine 8
Exemplified by lamp plate module, if desired two groups of RGB datas, 12 single-ended letters are shared plus the control signals such as CLK, LAT, OE, A, B, C one
Number, along with least one earth signal, then at least need the winding displacement of 13 cores；However, it is frequently present of some in LED display industry
Interface applications enter the core limited amount system of winding displacement；
(2) because winding displacement core is more, the contact point of the connector between winding displacement and lamp plate module is also more, single core
Obstructed or loose contact may result in display exception, and the failure that this reason is brought accounts for very big in LED display application and trouble
Ratio；
(3) because wire rod quantity is many, in the case that the probability that every wire rod breaks down is constant, large number of line
Material so that the unreliability of whole system greatly improves, thus larger failure risk be present；
(4) traditional lamp plate module is without self-test function, therefore must be by means of in test lamp template die group self performance
Card is received to complete, causes detection and misarrangement very inconvenient.
The content of the invention
Therefore, a kind of LED lamp panel, a kind of lamp plate module and one kind are proposed for deficiency of the prior art, the present invention
LED display control system.
Specifically, a kind of LED lamp panel provided in an embodiment of the present invention, including：Circuit board, LED drive circuit, multiple colors
LED point and data processing and control signal generation unit；The LED drive circuit, the multiple color LED point and institute
State data processing and control signal generation unit is arranged on the circuit board, described in the multiple color LED point electrical connection
LED drive circuit, the data processing and control signal generation unit electrically connect the LED drive circuit.Furthermore the data
Processing and control signal generation unit be used to going out view data according to the resolve packet that receives and produce control signal and
Described image data and control signal are exported to the LED drive circuit and clicked through with the multiple color LED of drive control
Row image is shown.
In one embodiment of the invention, the data processing of above-mentioned LED lamp panel and control signal generation unit are configured with
Serial data receiving port, for receiving the packet.
In one embodiment of the invention, the data processing of above-mentioned LED lamp panel and control signal generation unit also configure
There is standby serial data receiving port.
In one embodiment of the invention, the data processing of above-mentioned LED lamp panel and control signal generation unit be MCU,
CPLD or FPGA.
In addition, a kind of lamp plate module provided in an embodiment of the present invention, include multiple LED lamp panels of cascade, the cascade
At least one LED lamp panel in multiple LED lamp panels is any one foregoing LED lamp panel.
In addition, a kind of LED display control system provided in an embodiment of the present invention, including：Sending card, receive card and it is more
Individual lamp plate module；The card that receives electrically connects the sending card, and the multiple lamp plate module electrical connection is described to receive card, each
At least one LED lamp panel in the lamp plate module includes：Circuit board and the LED driving electricity being arranged on the circuit board
Road, multiple color LED points and data processing and control signal generation unit, described in the electrical connection of the multiple color LED point
LED drive circuit, the data processing and control signal generation unit electrically connect the LED drive circuit and described receive is blocked.
Furthermore the data processing and control signal generation unit are used to receive from the packet for receiving card simultaneously by single port
View data is gone out according to the resolve packet and produce control signal and by described image data and control signal export to
The LED drive circuit carries out image with the multiple color LED point of drive control and shown.
In one embodiment of the invention, the single port of above-mentioned LED display control system connects for serial data
Receiving end mouth, the card that receives is electrically connected for the reception packet.
In one embodiment of the invention, the data processing of above-mentioned LED display control system and control signal produce
Unit is also configured with standby serial data receiving port, electrically connects described receive and blocks.
In one embodiment of the invention, the data processing of above-mentioned LED display control system and control signal produce
Unit is MCU, CPLD or FPGA.
In one embodiment of the invention, above-mentioned LED display control system also includes Hub cards, the multiple lamp plate
Module electrically connects described receive by the Hub cards and blocked.
From the foregoing, it will be observed that the embodiment of the present invention by set in LED lamp panel data processing and control signal generation unit come
Specific drive control is served as, the drive control work that card is received in traditional mode is eliminated, can then greatly reduce reception card
The use of wire rod between lamp plate module, and less connection wire can reduce system signal and be broken down in wire rod transmission
Risk.
By the detailed description below with reference to accompanying drawing, other side of the invention and feature become obvious.But it should know
Road, the accompanying drawing is only the purpose design explained, not as the restriction of the scope of the present invention, because it should refer to
Appended claims.It should also be noted that unless otherwise noted, it is not necessary to which scale accompanying drawing, they only try hard to concept
Ground illustrates structure and flow described herein.
Brief description of the drawings
Below in conjunction with accompanying drawing, the embodiment of the present invention is described in detail.
Fig. 1 is the display drive control configuration diagram for the single casing that four lamp plate modules of prior art form.
Fig. 2 is the display drive control framework signal for the single casing that four lamp plate modules of the embodiment of the present invention form
Figure.
Fig. 3 A are the structural representation of the LED lamp panel of the embodiment of the present invention.
Fig. 3 B are the structural representation at another visual angle of LED lamp panel shown in Fig. 3 A.
Fig. 4 is that the display drive control framework for the single casing that four lamp plate modules of another embodiment of the present invention form shows
It is intended to.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, below in conjunction with the accompanying drawings to the present invention
Embodiment be described in detail.
Refer to Fig. 2, a kind of LED display control system provided in an embodiment of the present invention, including：Video source 21, send
Card 23, receive card (or scanning board) 25, Hub cards (or pinboard) 27 and multiple lamp plate modules 29.Sending card 23 is electrically connected
Video source 21 is connect, it receives the video letter from video source 21 by video signal interface such as DVI interface, HDMI
Number, and the scope (or with load scope) controlled according to itself is cut to obtain corresponding positions to obtained each two field picture
The image information put, complete to send the view data of well cutting to reception card 25 through output interfaces such as network interfaces after cutting；Receive
After card 25 obtains the view data of the offer of sending card 23, according to the difference of different lamp plate driving chip cabling modes, to picture number
According to corresponding torsion work is carried out, passing through Hub cards 27 in the form of packet after the completion of torsion exports to corresponding lamp plate module
29.Four lamp plate modules 29 are shown in Fig. 2, this four lamp plate modules 29 are electrically connected to same receive by Hub cards 27 and block 25,
Each lamp plate module 29 is configured with data processing and control signal generation unit 291, and institute's registration on each lamp plate module 29
According to the winding displacement of processing and control signal generation unit 291 by serial ports or LVDS interface or with a small amount of core and the electricity of Hub cards 27
Reception card 25 is connected to received data packet.In the embodiment shown in Figure 2, four lamp plate modules 29 are spliced into a casing,
It is understood that the quantity of the lamp plate module 29 in single casing is not restricted, it is determined generally by the band for receiving card 25
Loading capability.In addition, for LED display, it can be provided with multiple casings, the reception that each casing passes through each self-configuring
Card forms cascade.In addition, it will be appreciated by persons skilled in the art that in actual applications, video source 21 can be by user certainly
Oneself provides, that is to say, that manufacturer can not provide video source when providing LED display control system.
Hold above-mentioned, multiple LED lamp panels that single lamp plate module 29 is generally formed or cascaded by single led lamp plate form；
For single led lamp plate, data processing and control signal generation unit 291 can be provided with thereon；For the multiple of cascade
Can be that data processing and control signal generation unit 291 are only set in first order LED lamp panel for LED lamp panel, can also
It is that data processing and control signal generation unit 291 are provided with every one-level LED lamp panel.
Please also refer to Fig. 2 and Fig. 3 A and Fig. 3 B, LED lamp panel includes circuit board 290 and is arranged on circuit board 290
On data processing and control signal generation unit 291, LED drive circuit 293 and multiple color LED point RGB (RGB).
Data processing and control signal generation unit 291 for example pass through UART (Universal Asynchronous Receiver/
Transmitter, UART Universal Asynchronous Receiver Transmitter) serial data receiving port (RXD ports) and Hub cards 27 electrical connection receive card 25 on
UART serial datas sending port (TXD ports) with by serial data send line received data packet, that is to say by single-ended
Mouth received data packet.LED drive circuit 293 typically comprises row decoding chip and row driving chip, and row decoding chip and row
Driving chip electrically connects with each color LED point RGB.Multiple color LED points are not limited to include tri- kinds of color LED of RGB
Lamp point, for corresponding to single dual-colored LED display screen, it can also include a kind of color LED point or two kinds of color LED points.In addition,
In the actual application of the present embodiment, in order to which data signal transmission is relatively reliable, it can be produced in data processing and control signal
A standby RXD port is reconfigured on raw unit 291, correspondingly data processing and control signal generation unit 291 and Hub cards 27
Between can increase an alternate serial port data transmission line.
Data processing and control signal generation unit 291 in the present embodiment can be MCU (Microcontroller
Unit, microcontroller), CPLD (Complex Programmable Logic Device, CPLD) or
FPGA (Field Programmable Gate Array, field programmable gate array) etc..
Hold above-mentioned, as shown in Figure 3A, data processing and control signal generation unit 291 in LED lamp panel are connect by single line
Receiving and receive the packet that card 25 sends over, packet herein typically has two kinds, and one kind is field sync signal packet,
Another kind is view data bag；Data processing and control signal generation unit 291 are carried out after packet is received to packet
Parse to obtain field sync signal and view data such as RGB data.In addition, data processing and control signal generation unit 291
Control signal, such as the selection of clock signal clk, latch signal LAT, polarity itself can be also produced during packet is parsed
The LED lamp panel such as signal OE, row selection signal A, B, C shows required control signal.Data processing and control signal generation unit
291 transmit control signal caused by obtained view data and itself to LED driving electricity by I/O port (I/O mouths)
Road 293 carries out image with each color LED point of drive control and shown.Herein, because data processing and control signal produce list
Member 291 is integrated in LED lamp panel, so data processing and control signal generation unit 291 are sent out to LED drive circuit 293
The numerous and diverse winding displacement of redundancy is avoided the need for during sending control signal, view data, directly can complete to pass by PCB trace
It is defeated, and then complete final display.That is, receiving 25, card needs to produce to data processing and control signal by Hub cards 27
Raw unit 291 sends view data bag and necessary field sync signal packet, afterwards data processing and control signal
Generation unit 291 can produce control signal with itself, then be sent to control signal and view data by PCB trace in the lump
LED drive circuit 293, it can thus reduce the winding displacement received between card 25 and lamp plate module 29 and connect.
Compared to prior art, because the present embodiment produces list on lamp plate module added with data processing and control signal
Member 291, control signal during with for producing lamp plate module displays needed for LED drive circuit 293, so receiving card and lamp plate mould
Only need to transmit the view data for wanting display in line between group, so there is no need to receive the control between card and lamp plate module
Signal wire processed, the wire rod quantity received between card and lamp plate module is greatly reduced, decreases coffret, signal accordingly
Also can substantially reduces the probability to be broken down in transmitting procedure at wire rod and coffret.
It is noted that the main inventive concept of the above embodiment of the present invention is to receive card without being passed to lamp plate module
Clock signal clk, latch signal LAT, polarity selection signal OE during defeated lamp plate module displays needed for LED drive circuit 293, OK
The control signals such as selection signal A, B, C, data processing and control signal generation unit 291 of these control signals by lamp plate module
To produce；It is therefore to be understood that the above embodiment of the present invention receives is not limited to UART between card 25 and lamp plate module 29
Serial ports single wire transmission packet, it is also contemplated that the design for change that two-wire or multi-thread transmission packet etc. are appropriate, and these are not
Design for change beyond above-mentioned main inventive concept should be included within the scope of the present invention.
Refer to Fig. 4, the LED display control system of another embodiment of the present invention, including：Video source 41, sending card 43,
Receive card (or scanning board) 45 and multiple lamp plate modules 49.Sending card 43 electrically connects video source 41, and it passes through vision signal
Interface receives the vision signal from video source 41, and the scope controlled according to itself such as DVI interface, HDMI
(or with load scope) is cut to obtained each two field picture to obtain the image information of relevant position, is passed through after completing cutting
The output interfaces such as network interface send the view data of well cutting to reception card 45；Receive card 45 and the image of the offer of sending card 43 is provided
After data, according to the difference of different lamp plate driving chip cabling modes, view data to be carried out to reverse work accordingly, reversed
After the completion of (namely being not provided with Hub cards) is directly exported in the form of packet to corresponding lamp plate module 49.Four are shown in Fig. 4
Lamp plate module 49, this four lamp plate modules 49 are electrically connected to same receive and block 45, and each lamp plate module 49 is configured with data
Reason and control signal generation unit 491, and the shown data processing on each lamp plate module 49 and control signal generation unit 491
The received data packet in a manner of by single wire transmission of reception card 45 is electrically connected to by serial ports (such as UART serial ports).Shown in Fig. 4
Embodiment in, four lamp plate modules 49 are spliced into a casing, it is to be understood that lamp plate module 49 in single casing
Quantity is not restricted, and it is determined generally by the load capacity for receiving card 45.In addition, for LED display, it can set
Multiple casings are equipped with, each casing blocks to form cascade by the reception of each self-configuring.In addition, it will be appreciated by those skilled in the art that
, in actual applications, video source 41 can be provided by user oneself, that is to say, that manufacturer is providing LED display control
Video source can not be provided during system.
Hold above-mentioned, single lamp plate module 49 is generally made up of single led lamp plate or multiple LED lamp panel groups by cascading
Into；For single led lamp plate, data processing and control signal generation unit 491 can be provided with thereon；For the more of cascade
For individual LED lamp panel, it can be that data processing and control signal generation unit 491 are only set in first order LED lamp panel, also may be used
To be that data processing and control signal generation unit 491 are provided with every one-level LED lamp panel.As for be provided with data processing and
The structure of the LED lamp panel of control signal generation unit 491 can refer to Fig. 3 A and Fig. 3 B, will not be repeated here.
In summary, the embodiment of the present invention by set in LED lamp panel data processing and control signal generation unit come
Specific drive control is served as, eliminates the driving work that card is received in traditional mode, can then greatly reduce reception card and lamp
The use of wire rod between template die group, and less connection wire can reduce the wind that system signal breaks down in wire rod transmission
Danger.
So far, LED lamp panel, lamp plate module and and LED display control of the specific case used herein to the present invention
The principle and embodiment of system processed are set forth, and the explanation of above example is only intended to help the method for understanding the present invention
And its core concept；Meanwhile for those of ordinary skill in the art, according to the thought of the present invention, in embodiment and
There will be changes in application, in summary, this specification content should not be construed as limiting the invention, the present invention
Protection domain should be defined by appended claim.
Claims (8)
1. a kind of LED lamp panel, including：Circuit board and the LED drive circuit being arranged on the circuit board and multiple colors
LED point, the multiple color LED point electrically connect the LED drive circuit；Characterized in that, also include：
Data processing and control signal generation unit, it is arranged on the circuit board and electrically connects the LED drive circuit；It is described
Data processing and control signal generation unit are used for the serial data receiving terminal of the electrical connection front end receiver card by configuring thereon
Mouth is received from the packet for only including view data bag and field sync signal bag for receiving card, to packet progress
Parsing with obtain field sync signal and view data and during the packet is parsed locally generated control signal and
Described image data and control signal are exported to the LED drive circuit and clicked through with the multiple color LED of drive control
Row image is shown；
Wherein, described image data are to show required rgb image data, the locally generated control for carrying out image
Signal processed includes clock signal, latch signal, polarity selection signal and row selection signal.
2. LED lamp panel as claimed in claim 1, it is characterised in that the data processing and control signal generation unit are also matched somebody with somebody
It is equipped with standby serial data receiving port.
3. LED lamp panel as claimed in claim 1, it is characterised in that the data processing and control signal generation unit are
MCU, CPLD or FPGA.
4. a kind of lamp plate module, include multiple LED lamp panels of cascade；Characterized in that, at least one in the multiple LED lamp panel
Individual LED lamp panel is LED lamp panel as described in claims 1 to 3 any one, and its in the multiple LED lamp panel of cascade
His LED lamp panel is not provided with the data processing and control signal generation unit.
5. a kind of LED display control system, including：Sending card, card and multiple lamp plate modules are received, the reception card is electrically connected
The sending card is connect, and the multiple lamp plate module is electrically connected described receive and blocked；In each described lamp plate module extremely
A few LED lamp panel includes circuit board and the LED drive circuit being arranged on the circuit board and multiple color LED points,
And the multiple color LED point electrically connects the LED drive circuit；Characterized in that, at least one LED lamp panel is also wrapped
Include：
Data processing and control signal generation unit, electrically connect the LED drive circuit and described receive is blocked；The data processing
And control signal generation unit be used for by configure thereon electrical connection it is described receive card serial data receiving port receive come
From the packet only including view data bag and field sync signal bag for receiving card, the packet is parsed to obtain
The locally generated control signal and by the figure to field sync signal and view data and during the packet is parsed
Shown as data and control signal are exported to the LED drive circuit with the multiple color LED point progress image of drive control
Show；
Wherein, described image data are to show required rgb image data, the locally generated control for carrying out image
Signal processed includes clock signal, latch signal, polarity selection signal and row selection signal.
6. LED display control system as claimed in claim 5, it is characterised in that the data processing and control signal production
Raw unit is also configured with standby serial data receiving port, electrically connects described receive and blocks.
7. LED display control system as claimed in claim 5, it is characterised in that the data processing and control signal production
Raw unit is MCU, CPLD or FPGA.
8. LED display control system as claimed in claim 5, it is characterised in that the LED display control system is also wrapped
Hub cards are included, the multiple lamp plate module electrically connects described receive by the Hub cards and blocked.
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| CN201510514356.1A CN105047134B (en) | 2015-08-20 | 2015-08-20 | LED lamp panel, lamp plate module and LED display control system |
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| CN105516629A (en) * | 2016-01-27 | 2016-04-20 | 利亚德光电股份有限公司 | Display screen and splicing screen |
| CN106205484B (en) * | 2016-09-06 | 2018-09-28 | 深圳市奥拓电子股份有限公司 | LED display band carries configuration method and device |
| CN106782294B (en) * | 2016-12-26 | 2019-03-26 | 西安诺瓦电子科技有限公司 | LED display control system |
| CN108564917B (en) * | 2018-03-28 | 2021-02-09 | 深德彩科技(深圳)股份有限公司 | LED display screen, display method thereof and device with storage function |
| CN109036259B (en) * | 2018-08-13 | 2023-09-26 | 深圳市奥拓电子股份有限公司 | LED display module and LED display equipment |
| CN111277726A (en) * | 2018-12-05 | 2020-06-12 | 西安诺瓦星云科技股份有限公司 | Video processing apparatus |
| CN110972354A (en) * | 2019-11-06 | 2020-04-07 | 广州市皓品信息科技有限公司 | Control device for multiple types of LED light sources |
| CN112634813B (en) * | 2020-04-16 | 2023-02-17 | 西安诺瓦星云科技股份有限公司 | LED lamp panel, module controller, configuration method of module controller and LED display screen control system |
| CN112599083B (en) * | 2020-12-24 | 2022-09-06 | 深圳市洲明科技股份有限公司 | Data transmission method, data receiving method, sending card and receiving card of display screen |
| CN113297923B (en) * | 2021-04-30 | 2024-09-13 | 西安诺瓦星云科技股份有限公司 | Display screen monitoring method, device and system and embedded processor |
| CN114155794A (en) * | 2021-12-03 | 2022-03-08 | 深圳市九洲光电科技有限公司 | LED display screen integrated display system |
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