CN105489160B - A kind of data transmission device of LED display, data transmission method and system - Google Patents
A kind of data transmission device of LED display, data transmission method and system Download PDFInfo
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- CN105489160B CN105489160B CN201610018117.1A CN201610018117A CN105489160B CN 105489160 B CN105489160 B CN 105489160B CN 201610018117 A CN201610018117 A CN 201610018117A CN 105489160 B CN105489160 B CN 105489160B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/14—Display of multiple viewports
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- General Physics & Mathematics (AREA)
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- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
Abstract
The invention discloses a kind of data transmission device of LED display, data transmission method and systems, are related to the field of data transmission of LED display.Including data transmission blocks, at least two LED display modules, the data transmission bus with multiple data output ends；Host computer, the data input pin of the output end connection data transmission bus of data transmission blocks are connected by the input terminal of data transmission blocks；Data transmission blocks receive the input signal that host computer is sent, and input signal is sent to data transmission bus and carries out signal transmission；The data input pin of each LED display modules is connected with each data output end one-to-one correspondence in data transmission bus, and each LED display modules obtain corresponding display signal from input signal by data input pin and shown.LED display is realized in data transmission, when some LED display module when something goes wrong, do not influence the normal work of other LED display modules.
Description
Technical field
The present invention relates to the field of data transmission of LED display more particularly to a kind of data transmission of LED display to fill
It sets, data transmission method and system.
Background technology
Currently, LED display in the prior art is after data-transmission mode is to carry out multiple LED display modules serially
Carry out data transmission again.As shown in Figure 1, each LED display is made of several LED display modules, each LED display modules
Including there are one input terminal and an output end, all homogeneous datas all have to pass through the input terminal of current LED display modules
It enters the constant current driving IC of current LED display modules and then is arrived by the output end Serial output of current LED display modules
Next LED display modules, data-transmission mode are serial mode.
But during serial transmission, when some LED display module breaks down, shown in the LED to break down
Data after the output end of module received by other whole LED display modules will be abnormal, is shown so as to cause entire LED
Screen display is abnormal.
Invention content
The purpose of the present invention is to provide a kind of data transmission devices of LED display, it is intended to solve existing LED display
In data transmission, when a LED display module breaks down in LED display, positioned at the LED display modules to break down
Output end after all other LED display modules will be unable to normal work the problem of.
The invention is realized in this way a kind of data transmission device of LED display, is connected with host computer, the LED is aobvious
The data transmission device of display screen include data transmission blocks, at least two LED display modules and have multiple data output ends
Data transmission bus；
The input terminal of the data transmission blocks connects host computer, and the output end of the data transmission blocks connects the number
According to the data input pin of transfer bus, the data transmission blocks receive the input signal that the host computer is sent, and will be described
Input signal is sent to the data transmission bus and carries out signal transmission；
The data input pin of each LED display modules and each data output end one in the data transmission bus are a pair of
It should be connected, each LED display modules obtain corresponding display signal and shown from the input signal.
Further, the data transmission blocks include latch units；
The output end of the latch units is connected with the data input pin of the data transmission bus, and the latch units exist
The data transmission blocks generate latch signal after receiving the input signal, and the data transmission blocks believe the latch
Number each LED display modules are sent to together with the input signal, each LED display modules are according to the latch
Signal obtains corresponding display signal from the input signal.
Further, the data transmission blocks further include at least two first logic units；
The output end of each first logic unit is connected with the data input pin of the data transmission bus, and described each
One logic unit generates and each one-to-one chip selection signal of LED module, the data hair according to the input signal
Send module that will be sent to together with the chip selection signal and the input signal defeated with each data in the data transmission bus
Outlet corresponds connected each LED display modules, and each LED display modules are according to the chip selection signal to the phase
The display signal answered is shown.
Further, the latch units include latch.
Further, the latch is address latch.
Another object of the present invention is to provide a kind of data transmission devices based on LED display described in claim 1
LED display data transmission method, the data transmission method of the LED display includes step：
S100：The data transmission blocks receive the input signal that the host computer is sent, and the input signal is sent out
It gives the data transmission bus and carries out signal transmission；
S200：Each LED display modules obtain corresponding display signal and are shown from the input signal.
Further, the step S200 is specifically included：
S210：Latch units generate latch signal after the data transmission blocks receive the input signal, described
The latch signal is sent to each LED display modules by data transmission blocks together with the input signal, described every
A LED display modules obtain corresponding display signal according to the latch signal from the input signal.
Further, further include step after the step S210：
S220：Each first logic unit generates one-to-one with each LED module according to the input signal
The chip selection signal is sent to and the data transmission by chip selection signal, the data transmission blocks together with the input signal
Each data output end in bus corresponds connected each LED display modules, and each LED display modules are according to institute
Chip selection signal is stated to show corresponding display signal.
Another object of the present invention, which also resides in, provides a kind of LED display, and the LED display includes as described above
The data transmission device of LED display.
Another object of the present invention, which also resides in, provides a kind of data transmission system of LED display, the LED display
Data transmission system includes the data transmission device of LED display as described above.
Data transmission device, data transmission method and the system of a kind of LED display provided by the invention, including data hair
Send module, at least two LED display modules, the data transmission bus with multiple data output ends.Pass through data transmission blocks
Input terminal connect host computer, data transmission blocks output end connection data transmission bus data input pin, data send
Module receives the input signal that host computer is sent, and input signal is sent to data transmission bus and carries out signal transmission；Each
The data input pin of LED display modules is connected with each data output end one-to-one correspondence in data transmission bus, and each LED is aobvious
Show that module obtains corresponding display signal and shown from input signal.Existing LED display is solved in data transmission
When, when a LED display module breaks down in LED display, positioned at the LED display modules to break down output end with
Whole LED display modules afterwards will be unable to the problem of normal work.
Description of the drawings
Fig. 1 is the function structure chart of the data transmission device of LED display in the prior art；
Fig. 2 is the modular structure schematic diagram of the data transmission device for the LED display that the embodiment of the present invention 1 provides；
Fig. 3 is the module concrete structure schematic diagram of the data transmission device for the LED display that the embodiment of the present invention 2 provides；
Fig. 4 is the working timing figure of the data transmission device for the LED display that the embodiment of the present invention 2 provides；
Fig. 5 is the flow chart of the data transmission method for the LED display that the embodiment of the present invention 3 provides；
Fig. 6 be the embodiment of the present invention 3 provide LED display data transmission method in step S200 detailed process
Figure.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The realization of the present invention is described in detail below in conjunction with specific attached drawing：
Embodiment 1：
Fig. 2 shows the function structure charts for the data transmission device for being the LED display that the embodiment of the present invention 1 provides, and are
Convenient for explanation, part related to the present embodiment is only shown, details are as follows：
The data transmission device 100 of LED display in the present embodiment is connected with host computer 200, the data of LED display
Transmitting device 100 includes data transmission blocks 10, at least two LED display modules 20 and the number with multiple data output ends
According to transfer bus 30.
As shown in Fig. 2, the input terminal of data transmission blocks 10 connects host computer 200, the output end of data transmission blocks 10
Connect the data input pin of data transmission bus 30；Data transmission blocks 10 receive the input signal that host computer 200 is sent, and will
Input signal is sent to data transmission bus 30 and carries out signal transmission；
The data input pin 21 and each data output end 31 1 in data transmission bus 30 of each LED display modules 20
One correspondence is connected, and each LED display modules 20 obtain corresponding display signal and shown from input signal.
In the present embodiment, the data transmission device 100 of LED display is received by being connected with host computer 200 by upper
The input signal that machine 200 is sent, and the input signal is exported and carries out signal transmission to data transmission bus 30.Wherein, it inputs
Signal can also include corresponding display signal and address signal, and for each LED display modules 20, each LED is shown
The data input pin 21 of module 20, which all divides, has independent signal corresponding with address signal to receive address, each LED display modules
20 data input pin is connected with one of data transmission bus 30 data output end 31, by corresponding in input signal
Corresponding display signal can be sent to specific LED display modules 20 and shown by address signal.
A kind of data transmission device for LED display that this hair embodiment provides includes data transmission blocks 10, at least two
A LED display modules 20 and data transmission bus 30 with multiple data output ends.Pass through the defeated of data transmission blocks 10
Enter end connection host computer 200, the data input pin of the output end connection data transmission bus 30 of data transmission blocks 10；Data are sent out
It send module 10 to receive the input signal that host computer 200 is sent, and input signal is sent to data transmission bus 30 and carries out signal
Transmission；Each data output end 31 in the data input pin 21 and data transmission bus 30 of each LED display modules 20 is one by one
Corresponding to be connected, each LED display modules 20 obtain corresponding display signal from input signal by data input pin 21 and go forward side by side
Row display.Existing LED display is solved in data transmission, when a LED display module breaks down in LED display
When, the whole LED display modules later positioned at the output end of the LED display modules to break down will be unable to asking for normal work
Topic.
Embodiment 2：
Fig. 3 shows the function structure chart for the data transmission device for being the LED display that the embodiment of the present invention 2 provides, and is
Convenient for explanation, part related to the present embodiment is only shown, details are as follows：
Embodiment 2 is proposed based on embodiment 1.As shown in figure 3, as different from Example 1, the number in the present embodiment
Include latch units 11 and at least two first logic units 12 according to sending module 10.
The output end of latch units 11 is connected with the data input pin of data transmission bus 30, and latch units 11 are sent out in data
Latch signal is generated after sending module 10 to receive input signal, data transmission blocks 10 send out latch signal together with input signal
Each LED display modules 30 are given, each LED display modules 30 obtain corresponding display according to latch signal from input signal
Signal.The output end of each first logic unit 12 is connected with the data input pin of data transmission bus 30, each first logic
Unit 12 generates according to input signal and selects piece with 20 one-to-one chip selection signal of each LED module, data transmission blocks 10
Be sent to together with signal and input signal in data transmission bus 30 each data output end 31 one-to-one correspondence be connected it is every
A LED display modules 20, each LED display modules 20 show corresponding display signal according to chip selection signal.
In the present embodiment, the data input pin of the output end with data transmission bus 30 of latch units 11 is connected, and latches
Unit 11 passes through the latch signal of generation while data transmission blocks 10 send input signal to LED display modules 20
Data transmission bus 30 is sent to each LED display modules 20 together with input signal, and each LED display modules 20 are according to latch
Signal obtains corresponding display signal from input signal.The output end of each first logic unit 12 and data transmission bus 30
Data input pin be connected, wherein each data output end 31 1 of each first logic unit 12 and data transmission bus 30
One corresponds to, and each first logic unit 12 is answered to 31 the output phase of data output end with its one-to-one data transmission bus 30
The each LED display modules 20 of chip selection signal corresponding display signal is shown according to chip selection signal.
Fig. 4 shows the working timing figure of the data transmission device for the LED display that the embodiment of the present invention 2 provides, this reality
Apply in example by taking first three LED display module in LED display as an example, first three LED module be respectively LED display modules M0,
LED display module M1 and LED display modules M2.
As shown in figure 4, wherein SD1 is input signal, DCLK is data shift clock signal, and LAT is latch signal, CS_
MO is the chip selection signal of LED display modules MO, and CS_M1 is the chip selection signal of LED display modules M1, and CS_M2 is LED display modules
The chip selection signal of M2.Each LED display modules 20 according to latch signal after obtaining corresponding display signal in input signal, root
The corresponding display signal got is shown according to corresponding chip selection signal.For example, input signal SD1 in setting Fig. 4
Shift clock signal DCLK between MO signal segments and M1 signal segments is translocation time point, latch corresponding with the time point
Signal LAT is high level, and all LED display modules 20 in the data transmission device of LED display can obtain accordingly at this time
Display signal.
After realizing that each LED display modules 20 obtain corresponding display signal, shown accordingly, each first
Logic unit 12 is generated according to input signal and 20 one-to-one chip selection signal of each LED module, leads to together with input signal
It crosses data transmission bus 30 and is sent to and each of be connected with the one-to-one correspondence of each data output end 31 in data transmission bus 30
LED display modules 20, each LED display modules 50 are according to chip selection signal to showing that signal is shown accordingly.
As shown in figure 3, carrying out the data transmission between LED display modules 20 by data transmission bus 30.Each LED is aobvious
Show that the data of module 20 are all only transmitted by a data transfer bus 30, data timing transmission.As shown in figure 4, only
As latch signal LAT and 20 corresponding chip selection signal of each LED display modules effective simultaneously, input signal SDI data ability
Effectively enter corresponding LED display modules.When 20 corresponding chip selection signal of LED display modules is invalid, corresponding LED is shown
The signal that 20 input terminal of module receives can not be shown.In entire transmission process, all input signal SDI do not pass through
All LED display modules 20, then be output to next stage module, i.e., no output signal.This addresses the problem serial transmission moulds
The failure problems of formula, while reducing the material on hardware, reduce cost.Hardware circuit on some module goes wrong
Later, the display of other modules is had no effect on.
In the present embodiment, any one LED display module 20 does not carry out directly after obtaining corresponding display signal
It has been shown that, but corresponding display signal is being obtained it is also desirable to corresponding with the 20 corresponding chip selection signal of LED display modules
It could realize that LED display modules 20 show corresponding display signal.For example, setting Fig. 4 in input signal SD1 MO signal segments with
Shift clock signal DCLK between M1 signal segments is translocation time point, and latch signal LAT corresponding with the time point is
High level, the LED display modules 20 in the data transmission device of LED display are LED the display modules M0, LED in Fig. 3 at this time
Display module M0 can obtain corresponding display signal M0, the chip selection signal CS_MO of the corresponding display modules of LED at this time M0
High level, and keep high level until display signal M0 is transmitted, so that obtaining corresponding display signal M0's
LED display modules M0 to showing that signal M0 is shown accordingly.It is corresponding, in other embodiments of the invention, only
On translocation time point, the high electricity of chip selection signal of the high level and corresponding first logic unit 12 of latch signal is existed simultaneously
Usually, corresponding LED display modules 20 could obtain corresponding display signal and be shown.
In all embodiments of the invention, chip selection signal is that in the data transmission one judges whether that LED is made to show
The signal that module 20 shows corresponding display module.For checking the number to all LED display modules in a bus
It takes a seat, the corresponding display signal got from input signal is transmitted to corresponding LED display modules 20 according to address signal,
Target LED display modules 20 pointed by address signal can make a response according to the corresponding display signal got, other
LED display modules 20 do not do any reaction then.
In other embodiments of the invention, latch units 11 may include a latch, for generating latch signal, with
LED display modules 20 are enable to obtain corresponding display signal according to latch signal.Latch can be existing address lock
Storage.Address latch is a buffer, and in the present embodiment, latch is according to the state of input signal, by data transmission
Address code is kept in bus 30, realizes that same data transmission bus 30 not only transmission data but also had transmitted address.Work as host computer
200 with latch units 11 when exchanging signal, sends out storage address by host computer 200 first, and being simultaneously emitted by allows signal to lock
Address latch on data transmission bus 30 is carried out data biography by storage after latch units 11 are connected to the signal in input
It is defeated.
If wish that all LED display modules 20 show information and all identical content, it can be patrolled by same first
It collects unit 12 and exports same chip selection signal to each LED display modules 20 so that each LED display modules 20 are selected according to piece to be believed
The corresponding display signal of number identical content of display.
A kind of data transmission device for LED display that this hair embodiment provides includes data transmission blocks 10, at least two
A LED display modules 20 and data transmission bus 30 with multiple data output ends.Wherein data transmission blocks 10 are also wrapped
Include latch units 11 and at least two first logic units 12.Latch units 11 receive input signal in data transmission blocks 10
After generate latch signal, and each LED display modules 30 are sent to together with input signal, each 30 basis of LED display modules
Latch signal obtains corresponding display signal from input signal.Each first logic unit 12 is according to input signal generation and often
20 one-to-one chip selection signal of a LED module is sent to by data transmission bus 30 together with input signal and is passed with data
Each data output end 31 in defeated bus 30 corresponds the data input pin 21 of connected each LED display modules 20, often
A LED display modules 20 show corresponding display signal according to chip selection signal.Existing LED display is solved in data transmission
When, when a LED display module breaks down in LED display, positioned at the LED display modules to break down output end with
Whole LED display modules afterwards will be unable to the problem of normal work.
Embodiment 3：
The purpose of the present embodiment is that a kind of data transmission device based on the LED display described in embodiment 2 of offer
The data transmission method of LED display, Fig. 5 show the flow of the data transmission method of LED display provided in this embodiment
Figure.As shown in figure 5, the data transmission method of the LED display includes step：
S100：The data transmission blocks receive the input signal that the host computer is sent, and the input signal is sent out
It gives the data transmission bus and carries out signal transmission；
S200：Each LED display modules obtain corresponding display signal and are shown from the input signal.
In other embodiment except this embodiment, input signal can also include corresponding display signal and address letter
Number, for each LED display modules 20, the data input pin division of each LED display modules 20 has independent signal
Receive address, one of the data input pin and data transmission bus 30 of each LED display modules 20 data output end 31
It is connected, by corresponding address signal in input signal, corresponding display signal can be sent to specific LED display modules 20
It is shown.
Fig. 6 show the embodiment of the present invention 3 provide LED display data transmission method in step S200 specific stream
Cheng Tu, as shown in fig. 6, step S200 is specifically included：
S210：Latch units generate latch signal after the data transmission blocks receive the input signal, described
The latch signal is sent to each LED display modules by data transmission blocks together with the input signal, described every
A LED display modules obtain corresponding display signal according to the latch signal from the input signal.
In other embodiment except this embodiment, latch signal can also be by latch according to data transmission blocks
The drive signal that the input signal of transmission generates, for driving LED display modules at corresponding time point from the input signal
It is middle to obtain corresponding display signal.
As shown in fig. 6, further including step after the step S210：
S220：Each first logic unit generates one-to-one with each LED module according to the input signal
The chip selection signal is sent to and the data transmission by chip selection signal, the data transmission blocks together with the input signal
Each data output end in bus corresponds connected each LED display modules, and each LED display modules are according to institute
Chip selection signal is stated to show corresponding display signal.
It is corresponding with embodiment 2, in the present embodiment by between the progress LED of data transmission bus 30 display modules 20
Data transmission.The data of each LED display modules 20 are only transmitted by a data transfer bus 30, data timesharing
Transmission.Only as latch signal LAT and 20 corresponding chip selection signal of each LED display modules effective simultaneously, input signal SDI
Data can just effectively enter corresponding LED display modules.It is corresponding when 20 corresponding chip selection signal of LED display modules is invalid
The signal that receives of 20 input terminal of LED display modules can not be shown.In entire transmission process, all input signals
SDI is without all LED display modules 20 of process, then is output to next stage module, i.e., no output signal.This addresses the problem
The failure problems of mode of serial transmission, while reducing the material on hardware, reduce cost.Hardware electricity on some module
After road goes wrong, the display of other modules is had no effect on.
Specifically, in the present embodiment, any one LED display module 20 is not straight after obtaining corresponding display signal
Capable display is tapped into, but is obtaining corresponding display signal it is also desirable to chip selection signal corresponding with the LED display modules 20
It is corresponding to realize that LED display modules 20 show corresponding display signal.For example, in Fig. 4 input signal SD1 MO and M1 it
Between shift clock signal DCLK be translocation time point, latch signal LAT corresponding with the time point be high level, at this time
LED display modules 20 in the data transmission device of LED display are LED display modules M0, the LED display module M0 in Fig. 3
The chip selection signal CS_MO that corresponding display signal M0, the corresponding display modules of LED at this time M0 can be obtained is high level, and
Keep high level until display signal M0 is transmitted, so that the LED for obtaining corresponding display signal M0 shows mould
M0 to showing that signal M0 is shown accordingly for group.It is corresponding, in other embodiments of the invention, only work as translocation
It is corresponding when existing simultaneously the high level of latch signal and corresponding to the chip selection signal high level of the first logic unit 12 on time point
LED display modules 20 could obtain corresponding display signal and be shown.
A kind of data transmission method of LED display provided by the invention receives host computer hair by data transmission blocks
The input signal sent, and input signal is sent to data transmission bus and carries out signal transmission；Each LED display modules pass through number
Corresponding display signal is obtained from input signal and shown according to input terminal.It solves existing LED display to pass in data
When defeated, when a LED display module breaks down in LED display, positioned at the output end of the LED display modules to break down
Later whole LED display modules will be unable to the problem of normal work.
Embodiment 4：
The purpose of the present embodiment is that a kind of LED display and a kind of data transmission system of LED display are provided, it should
The data transmission system of LED display and LED display respectively includes the number of the LED display described in above-mentioned any embodiment
According to transmitting device.The data transmission system of LED display in the present embodiment is related to technical solution and reality related to the present invention
Existing principle has been described in the above-described embodiments, and details are not described herein again.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (8)
1. a kind of data transmission device of LED display, is connected with host computer, which is characterized in that the data of the LED display
Transmitting device includes data transmission blocks, at least two LED display modules and the data transmission with multiple data output ends
Bus；
The input terminal of the data transmission blocks connects host computer, and the output end of the data transmission blocks connects the data and passes
The data input pin of defeated bus, the data transmission blocks receive the input signal that the host computer is sent, and by the input
Signal is sent to the data transmission bus and carries out signal transmission；
The data input pin of each LED display modules corresponds phase with each data output end in the data transmission bus
Even, each LED display modules obtain corresponding display signal and are shown from the input signal；
The data transmission blocks include latch units；
The output end of the latch units is connected with the data input pin of the data transmission bus, and the latch units are described
Data transmission blocks, which receive, generates latch signal after the input signal, the data transmission blocks by the latch signal with
The input signal is sent to each LED display modules together, and each LED display modules are according to the latch signal
Corresponding display signal is obtained from the input signal.
2. the data transmission device of LED display according to claim 1, which is characterized in that the data transmission blocks
Further include at least two first logic units；
The output end of each first logic unit is connected with the data input pin of the data transmission bus, and described each first patrols
Unit is collected to be generated and each one-to-one chip selection signal of LED module, the data transmission mould according to the input signal
Block will be sent to and each data output end in the data transmission bus together with the chip selection signal and the input signal
Connected each LED display modules are corresponded, each LED display modules are according to the chip selection signal to corresponding
Display signal is shown.
3. the data transmission device of LED display according to claim 1, which is characterized in that the latch units include
Latch.
4. the data transmission device of LED display according to claim 3, which is characterized in that the latch is address
Latch.
5. a kind of data transmission method of the LED display of the data transmission device based on LED display described in claim 1,
It is characterized in that, the data transmission method of the LED display includes step：
S100：The data transmission blocks receive the input signal that the host computer is sent, and the input signal is sent to
The data transmission bus carries out signal transmission；
S200：Each LED display modules obtain corresponding display signal and are shown from the input signal；
The step S200 is specifically included：
S210：Latch units generate latch signal, the data after the data transmission blocks receive the input signal
The latch signal is sent to each LED display modules, each LED by sending module together with the input signal
Display module obtains corresponding display signal according to the latch signal from the input signal.
6. the data transmission method of LED display according to claim 5, which is characterized in that the step S210 it
After further include step：
S220：Each first logic unit is generated according to the input signal and is selected with each one-to-one piece of LED module
The chip selection signal is sent to and the data transmission bus by signal, the data transmission blocks together with the input signal
In each data output end correspond connected each LED display modules, each LED display modules are according to described
Signal is selected to show corresponding display signal.
7. a kind of LED display, which is characterized in that the LED display includes such as claim 1-4 any one claims
The data transmission device of the LED display.
8. a kind of data transmission system of LED display, which is characterized in that the data transmission system of the LED display includes
The data transmission device of LED display as described in claim 1-4 any one claims.
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| CN114495814B (en) * | 2022-03-02 | 2023-05-05 | 深圳市绿源半导体技术有限公司 | LED display transmission system |
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| CN201163518Y (en) * | 2008-01-07 | 2008-12-10 | 江勇 | Nixie tube driving circuit for storing bus control mode of single chip microcomputer |
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| CN202422683U (en) * | 2011-12-13 | 2012-09-05 | 深圳市艾比森光电股份有限公司 | Drive circuit for cell board of LED (Light Emitting Diode) display screen |
| EP2390868B1 (en) * | 2010-05-24 | 2013-07-31 | Macroblock, Inc. | LED driving device and driving system thereof |
| CN104008729A (en) * | 2014-06-23 | 2014-08-27 | 苏州塔可盛电子科技有限公司 | LED display screen based on AVR single-chip microcomputer |
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2016
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201163518Y (en) * | 2008-01-07 | 2008-12-10 | 江勇 | Nixie tube driving circuit for storing bus control mode of single chip microcomputer |
| CN201600875U (en) * | 2010-02-25 | 2010-10-06 | 上海三埃弗电子有限公司 | Multi-LED nixie tube display apparatus |
| EP2390868B1 (en) * | 2010-05-24 | 2013-07-31 | Macroblock, Inc. | LED driving device and driving system thereof |
| CN202422683U (en) * | 2011-12-13 | 2012-09-05 | 深圳市艾比森光电股份有限公司 | Drive circuit for cell board of LED (Light Emitting Diode) display screen |
| CN104008729A (en) * | 2014-06-23 | 2014-08-27 | 苏州塔可盛电子科技有限公司 | LED display screen based on AVR single-chip microcomputer |
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| CN105489160A (en) | 2016-04-13 |
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