CN104361864B - LED modules and its port controlling method and LED display system - Google Patents
LED modules and its port controlling method and LED display system Download PDFInfo
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- CN104361864B CN104361864B CN201410718122.4A CN201410718122A CN104361864B CN 104361864 B CN104361864 B CN 104361864B CN 201410718122 A CN201410718122 A CN 201410718122A CN 104361864 B CN104361864 B CN 104361864B
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Abstract
Disclose LED modules and its port controlling method and LED display system.The LED modules, including：LED light array；LED drive circuit for driving LED light array；And for receive input signal and to LED drive circuit provide serial signal module port module, wherein, module port module includes the multiple input/output ports being located at least on the signal path in the first and second directions, first direction and second direction into angle, at least one port of the multiple input/output port is disposed for the input port from external reception serial signal, and at least another port is disposed for being provided to outside the output port of serial signal.Length of arrangement wire and difficulty can be reduced using the LED modules, and adverse effect of indivedual modules damages to display effect can be reduced.
Description
Technical field
The present invention relates to technical field of LED display, more particularly, to the LED display system including multiple LED modules.
Background technology
LED display system is widely used for showing word and pattern.LED display system includes display screen control end and LED
Display screen.LED modules (also referred to as cell board) are the critical pieces for constituting LED display, corresponding to one piece of display of LED display
Region.LED modules can successively be cascaded into one group with used aloned, or multiple LED modules, with the display surface of extendable display screen
Product.
Display screen control end has multiple communication outputs mouthful.In situation of the LED display comprising multigroup cascade LED modules
Under, display screen control end can provide multi-path serial data, and the cascade LED modules of respective sets are controlled respectively.Using cascading LED moulds
Group forms expansible display screen.The serial data includes data-signal, control signal, when LED display system is scan screen
Also include scanning signal during system.
One communication output mouthful of display screen control end can provide serial data, such as Fig. 1 for the module of a line cascade
It is shown.The opposite sides of each module respectively has a COM1, and one of port is input port I, and another port is
Output port O.In multiple modules of a line cascade, the input port of first order module communicates with of display screen control end
Port is connected, and the output port of subsequent previous stage module is connected with the input port of rear stage module.Each module is sequentially connected in series,
So that the display content sent from display screen control end and idsplay order pass to each module successively, the display of content is realized.
One communication output mouthful of display screen control end can also provide serial data for the module of multirow cascade, such as scheme
Shown in 2.In a row, the input port of first order module is connected with a COM1 of display screen control end, then previous
The output port of level module is connected with the input port of rear stage module, realizes that a line cascades the concatenation of module.Do not going together it
Between, the output port of lastrow afterbody module is connected with the input port of next line first order module, realizes that inter-bank is concatenated.
In order to form the display screen of large area, a communication output mouthful of display screen control end can control multirow to cascade
Module, even if so that mouthful greater number of module can be controlled using the communication output of equal number.However, do not go together
The inter-bank series connection of module increased length of arrangement wire and wiring difficulty, improves cost and reduces the reliability of signal transmission.
The mode of the concatenations of LED modules shown in Fig. 2 is merely illustrative, due to display screen and module in actual LED display system
Specification is numerous, and the annexation between module specification, module is also different.Display screen control end needs to be obtained by complicated configuration process
The positional information of each module is taken, so as to the corresponding display data of correct sends module, could enable that display screen correctly shows figure
Text.
On the other hand, in above-mentioned traditional LED display system, the connected mode between different modules is man-to-man
The module of cascade system, i.e., one is only connected with the module of previous stage and the module of rear stage.From previous stage module to rear stage mould
Group serially transfers data.If certain grade of module is damaged, input cannot be provided to next stage module and driven.As a result, this grade of module
The all modules for concatenating afterwards cannot transmit signal, it will cause LED display the abnormal show of large area occur in application,
Application to LED display brings considerable influence.
Expect further to reduce the wiring difficulty and configuration complexity of LED display module and reduce indivedual modules to damage
To the adverse effect of display effect.
The content of the invention
It is an object of the invention to provide a kind of new LED display module and LED display system.
According to an aspect of the present invention, there is provided a kind of LED modules, including：LED light array；For driving LED light array
LED drive circuit；And for receive input signal and to LED drive circuit provide serial signal module port module,
Wherein, module port module includes the multiple input/output ports being located at least on the signal path in the first and second directions, the
With second direction into angle, at least one port of the multiple input/output port is disposed for from external reception in one direction
The input port of serial signal, at least another port are disposed for being provided to outside the output port of serial signal.
Preferably, in the LED modules, the module port module also includes port control circuit, the port control
Each in the multiple input/output port is configured to one of input port and output port by circuit processed.
Preferably, in the LED modules, the multiple input/output port is located at the periphery of the LED modules.
Preferably, in the LED modules, one kind being shaped as selected from following shape of the LED modules：Rectangle, circle
Shape, ellipse, triangle, polygon.
Preferably, in the LED modules, the LED modules are shaped as rectangle, and the multiple input/output terminal
One or more ports in mouthful are located at one side of rectangle.
Preferably, in the LED modules, the port control circuit includes：For defeated to the multiple input respectively
Exit port provides the multiple Enable Pins for enabling signal；Multiple letters for receiving signal from the multiple input/output port respectively
Number input；And for transmitting the common signal transmission end of signal to the multiple input/output port.
Preferably, in the LED modules, the multiple input/output port includes respectively：It is connected to input/output terminal
Resistance and ground between；Be connected between the signal input part of the input/output terminal and the port control circuit with door；
And be connected to the switch between the input/output terminal and the signal transmission end of the port control circuit, wherein, it is described with
Door is received from the Enable Pin of the port control circuit and enables signal as input, and the switch is according to the enable signal
It is turned on or off.
Preferably, it is described to switch off so that corresponding when the enable signal is high level in the LED modules
Input/output port be configured to input port.
Preferably, in the LED modules, when the enable signal is low level, the switch conduction is caused accordingly
Input/output port be configured as output to port.
According to another aspect of the present invention, there is provided a kind of port controlling method for above-mentioned LED modules, including：Successively
Detect the port signal of the multiple input/output port；And according to port signal by the multiple input/output port
Each port is configured to one of input port and output port, wherein, when the port signal for detecting within the predetermined time refers to
When showing signal input, corresponding input/output port is configured to input port, and other input/output ports are configured to
Output port.
Preferably, methods described also includes：LED drive circuit receives serial signal simultaneously according to the positional information of LED modules
Drive LED light array.
According to another aspect of the invention, there is provided a kind of LED display system, including：Display screen control end, including at least one
Individual communication output mouthful, for providing serial signal；And LED display, for receiving serial signal from display screen control end,
And LED is lighted or extinguished according to serial signal, wherein, the LED screen includes LED module arrays, the LED module arrays
It is made up of above-mentioned multiple LED modules.
Preferably, in the LED display system, each LED module in the multiple LED modules with it is adjacent
LED modules are connected.
Preferably, in the LED display system, the multiple LED modules are arranged in rows, and the first party
To being line direction, the second direction is column direction.
Preferably, in the LED display system, at least one of the multiple LED modules LED modules and described
LED modules connection adjacent on one direction, and the LED module connection adjacent with the second direction.
Preferably, in the LED display system, the multiple LED modules are serially connected, and the multiple LED
One of first order module in module and described at least one communication output mouthful of the display screen control end are connected.
Preferably, in the LED display system, the multiple LED modules include the main path being serially connected and divide
Branch path, wherein, first order module in multiple LED modules in the main path with described in the display screen control end extremely
It is the multiple in the connection of one of few communication output mouthful, first order module in the individual path and the main path
One of LED modules are connected.
Preferably, in the LED display system, the multiple LED modules connect into two-dimensional network, the multiple LED
Each LED module in module is connected between adjacent LED modules.
Preferably, in the LED display system, each LED module in the multiple LED modules it is the multiple
A port in input/output port is configured to input port, and other ports are configured to output port.
Embodiments in accordance with the present invention LED modules, port controlling method and LED display system, had both reduced wiring difficulty
And configuration complexity, the automatic identification of module annexation can be realized again, multi-to-multi line between module is also supported, greatly reduce
Certain module cannot provide the possibility of display screen large area abnormal show when input drives for next stage module, show LED
The application of screen is more convenient, and performance is more reliable.
Brief description of the drawings
Fig. 1 shows the LED display system structural representation according to prior art；
Fig. 2 shows another LED display system structural representation according to prior art；
Fig. 3 shows the structural representation of LED display system according to a first embodiment of the present invention；
Fig. 4 shows the structural representation of LED display system according to a second embodiment of the present invention；
Fig. 5 shows the structural representation of LED display system according to a third embodiment of the present invention；
Fig. 6 shows the structural representation of the LED modules for using in an embodiment of the present invention；
Fig. 7 shows the circuit block diagram of the module port module for using in an embodiment of the present invention；And
Fig. 8 shows the flow chart of the port controlling method for using in an embodiment of the present invention.
Specific embodiment
Various embodiments of the present invention are more fully described hereinafter with reference to accompanying drawing.In various figures, identical element
Represented using same or similar reference.For the sake of clarity, the various pieces in accompanying drawing are not necessarily to scale.
Fig. 3 shows the structural representation of LED display system according to a first embodiment of the present invention.Display screen control end 100
Multiple communication outputs mouthful be connected with LED display 200.LED display 200 includes multigroup cascade LED modules.Display screen control
End processed 100 can provide multi-path serial data, and the cascade LED modules of the respective sets of LED display 200 are controlled respectively.It is described serial
Data include data-signal, control signal, and scanning signal is also included when LED display system is for scanning screen system.
Figure 3 illustrates one group of cascade LED module that the communication output mouth with display screen control end 100 is connected.
Group cascade LED modules for example include being arranged in 3 × 3 array, i.e. LED modules M1 to M9.With the LED modules of prior art not
Together, the LED modules M1 to M9 for using in this embodiment includes 4 input/output port IO respectively.For example, LED modules M1 is extremely
M9 has rectangular shape respectively, and four input/output port IO can be arranged on four sides of rectangle.As will be described
As, four input/output port IO can be respectively the adaptive input output port for automatically configuring input/output direction.
Thus, any one side of each the LED module in LED modules M1 to M9 can be automatically configured to signal input port or
Person's signal output port.In two dimensional surface, each LED module can provide signal path and edge along a first direction
The signal path of second direction, wherein first direction and second direction is in angle, such as perpendicular to one another.
One communication output mouthful of display screen control end 100 can provide serial data for the module of multirow cascade, such as
Shown in Fig. 3.One input/output port IO of first order module (such as LED module M1) with one of display screen control end 100
COM1 is connected.When first order module detects the signal that control end is provided in input/output port IO, this is input into
Output port IO is automatically configured to input port.One input/output port IO of subsequent previous stage module is automatically configured to output
Port, an input/output port IO of rear stage module is automatically configured to input port, and is connected with each other, so as to realize level
The concatenation of gang mould group.
Further, as shown in figure 3, in two dimensional surface, each LED module can provide first direction (such as LED
The line direction of module array) and second direction (such as column direction of LED module arrays) signal path.Each LED module
Connection can be formed between any one adjacent, no matter during the adjacent LED modules are located at a line, or positioned at not going together
In.Since first order module M1, the serial connection sequence of LED modules M1 to M9 is serial signal successively via M1 to M9, wherein from
M2 to M3, from M4 to M5, M7 to M8, be from M8 to M9 inter-bank concatenation.
LED display from prior art is different, in the LED display 200 according to first embodiment, even if multiple
LED modules inter-bank is concatenated, and length of arrangement wire is also dependent only on the distance between adjacent LED modules, so as to wiring will not be increased
Length and wiring difficulty.
Fig. 4 shows the structural representation of LED display system according to a second embodiment of the present invention.With first embodiment not
Together, the signal path in the LED display of second embodiment includes multiple branches.
One communication output mouthful of display screen control end 100 can provide serial data for the module of multirow cascade, such as
Shown in Fig. 4.One input/output port IO of first order module (such as LED module M4) with one of display screen control end 100
COM1 is connected.When first order module detects the signal that control end is provided in input/output port IO, this is input into
Output port IO is automatically configured to input port.At least one input/output port IO of subsequent previous stage module is configured to output
Port, at least one input/output port IO of rear stage module is configured to input port, and is connected with each other, so as to realize level
The concatenation of gang mould group.For example, in the row of LED modules M4, M3 and M8 composition, an input/output terminal of each LED module
Mouth IO is configured to input port, and so as to be connected with a module of previous stage, three input/output port IO are configured to output end
Mouthful,
In two dimensional surface, each LED module can provide first direction (such as line direction of LED module arrays) and
The signal path of second direction (such as column direction of LED module arrays).Each LED module can with any one adjacent it
Between form connection, no matter during the adjacent LED modules are located at a line, or in not going together.Opened from first order module M4
Begin, the order of connection of LED modules M1 to M9 is serial signal successively via LED module M4, M3 and M8, then via individual path
Remaining LED module is reached from LED modules M4, M3 and M8.For example, from LED modules M4 via the first and second individual paths point
It is clipped to up to LED module M1 and M5, LED module M2 and M6 is arrived separately at via the third and fourth individual path from LED modules M3, from
LED modules M8 arrives separately at LED modules M9 and M7 via the 5th and the 6th individual path.
LED display from prior art is different, in the LED display 200 according to second embodiment, even if multiple
LED modules inter-bank is concatenated, and length of arrangement wire is also dependent only on the distance between adjacent LED modules, so as to wiring will not be increased
Length and wiring difficulty.Further, using individual path, it is possible to reduce reach the length of the signal path of least significant end LED modules
Degree, such that it is able to improve the driving force and signal quality of display screen control end.
Fig. 5 shows the structural representation of LED display system according to a third embodiment of the present invention.Above-mentioned according to the first He
In the LED display system of second embodiment, according to predetermined signal path between each LED module and adjacent LED modules
Connection.It is different from the first and second embodiments, according in the LED display of 3rd embodiment, LED module arrays are connected in advance
Connected between adjacent LED modules into two-dimensional network, i.e. each LED module.Actual signal path then can by with
Family configures or automatically configures.
One communication output mouthful of display screen control end 100 can provide serial data for the module of multirow cascade, such as
Shown in Fig. 5.One input/output port IO of first order module (such as LED module M4) with one of display screen control end 100
COM1 is connected.When first order module detects the signal that control end is provided in input/output port IO, this is input into
Output port IO is automatically configured to input port.LED modules M4 will detect left port signal input, a left side of LED modules M4
Port is configured as input to port, and other 3 ports are configured as output port.Therefore, the lower port of LED modules M1, LED moulds
The left port of group M3, the upper port of LED modules M5 will detect signal input, and this 3 ports are both configured to input port.
Remaining port of LED modules M1, M3 and M5 are then configured as output to port.LED module M2, LED adjacent with this 3 LED modules
Module M8, LED module M6 etc. receives signal input, and wherein LED modules M2, LED modules M6 has two ports to receive letter
Number input, wherein will be configured to input port in any one port.The like, each of each LED module can be completed
Individual port input/output relation configuration.
In the LED display system according to 3rd embodiment, multiple LED modules can provide optional multiple signal road
Footpath.In LED module arrays, except LED modules M4 can only obtain signal input from display screen control end 100, remaining LED module
Can there are multiple signal paths to obtain signal input.Even if wherein one signal of path drives going wrong, display screen is still
Can normally show.For example, it is assumed that the lower port of LED modules M4 cannot provide correct signal for the upper port of LED modules M5
Drive, in conventional systems, LED modules M5 and all LED modules for concatenating thereafter cannot normally show.In the present embodiment
In, LED modules M5 can also be driven by obtaining correct signal with underpass：The right output port output signal of LED modules M4 is driven
The left port of LED modules M3 is moved, the lower port output signal of LED modules M3 is driven into the upper port of LED modules M6, LED moulds
The left port output signal of group M6 is driven into the right output port of LED modules M5, and LED modules M5 is to obtain correct signal input, will
Right output port is configured to input port.
Require that the corresponding ports of adjacent LED module are connected in above-described embodiment, therefore the embodiment also can be real using first
Apply the LED display LED module method of automatic configuration proposed in example.If by user configuring port, the connection between LED modules
Relation arbitrarily can be connected arbitrarily, it is not required that must be adjacent LED module corresponding ports be connected.
LED display system in above-described embodiment, had both reduced wiring difficulty, and the automatic of module annexation can be realized again
Identification, so as to reduce configuration complexity, also supports multi-to-multi line between module, and it cannot be next stage to greatly reduce certain module
Module provides the possibility of display screen large area abnormal show when input drives, and makes the application of LED display more convenient, performance
It is more reliable.
In the above-mentioned LED display system according to the first to 3rd embodiment, LED modules link together, and are not limited to
It is sequentially connected in series.All LED modules are carried out using two-dimensional coordinate (x, y) position encoded, the value of x-axis and y-axis represents described respectively
The horizontal and vertical position in display screen of LED modules.
The LED modules receive input signal, i.e., when left port is configured as input to port, the LED modules from left port
X coordinate value be equal to upper level LED modules x coordinate add 1, y values are constant；
The LED modules receive input signal, i.e., when right output port is configured as input to port, the LED modules from right output port
X coordinate value be equal to upper level LED modules x coordinate subtract 1, y values are constant；
The LED modules receive input signal, i.e., when upper port is configured as input to port, the LED modules from upper port
Y-coordinate value be equal to upper level LED modules y-coordinate add 1, x values are constant；
The LED modules receive input signal, i.e., when lower port is configured as input to port, the LED modules from lower port
Y-coordinate value be equal to upper level LED modules y-coordinate subtract 1, x values are constant.
By taking the LED display system shown in Fig. 5 as an example, it is assumed that the seat of the LED modules 1 being connected with LED display control end 100
Be designated as (0,0), then the coordinate of LED modules 2 is (1,0), the coordinate of LED modules 3 is (1,1), the coordinate of LED modules 4 for (0,
1), the coordinate of LED modules 5 is (0,2), and the coordinate of LED modules 6 is (1,2), and the coordinate of LED modules 7 is (2,2), LED modules 8
Coordinate be (2,1), the coordinate of LED modules 9 is (2,0).Calculate successively, you can obtain the institute that communication output mouth is managed
There is the positional information of LED modules, display screen control end 100 can correctly send correspondence display data according to above-mentioned positional information.
Above-mentioned LED modules annexation recognition methods is merely illustrative, and various conversion can be done in practical application, such as first assume
Be not the LED modules being connected with LED display control end 100 coordinate, but the communication output most end that is managed of mouth
Hold the coordinate value of LED modules.The calculating of certain LED module coordinates value is not the coordinate value of foundation upper level LED modules, but foundation
The coordinate value of next stage LED modules.Can also be the coordinate for first assuming any LED modules, then the coordinate for calculating remaining LED module
Value.
Fig. 6 shows the structural representation of the LED modules for using in an embodiment of the present invention.The LED modules can be root
According to any one the LED module in the LED display system of the first to 3rd embodiment.LED modules include module port module 310,
LED drive circuit 350 and LED light array 360.The various pieces of LED modules are for example arranged on printed circuit board (PCB) (PCB) 300.
Additionally, LED modules 300 can also be including the discrete component such as resistance, electric capacity and shell.
Module port module 310 is used to provide four input/output terminal DIO1 to DIO4, for the control from LED display
End obtains serial data.The serial data includes data-signal, control signal, when LED display system is for scanning screen system
Also include scanning signal.If LED modules are rectangular shape, four input/output terminal DIO1 to DIO4 may be located at the four of rectangle
On individual side.Any one in four input/output terminal DIO1 to DIO4 can be configured to signal input port or signal is defeated
Exit port.In two dimensional surface, each LED module can provide signal path along a first direction and along second party
To signal path, wherein first direction and second direction is in angle, such as perpendicular to one another.
However, the shape of LED modules and port configuration not limited to this.Such as shape of LED modules can be not only rectangle,
Can also be circle, ellipse, triangle, polygon etc..LED modules include that input port or output end can be each configured to
At least two input/output terminal DIO of mouth.At least two input/output terminals DIO is distributed on the periphery of LED modules, for example
One or more input/output terminal DIO can be configured in polygonal a line.
Signal is not only sent to output port by module port module 310 from input port so that can be to next stage
LED modules provide signal, and according to the positional information of LED modules, its corresponding display data are sent into LED drive circuit
350.LED drive chip 350 is, for example, IC chip (IC), for driving coupled LED light array 360.
Fig. 7 shows the circuit block diagram of the module port module 310 for using in an embodiment of the present invention.Module port module
310 include the module input/output port 310a to 310d of port control circuit 312 and first to fourth.Module port module
310 can automatically configure input/output port, or configure input/output port according to user instruction
The auto configuration mode of module port module 310 will be described in the present embodiment, i.e., examined according to the signal on port
Corresponding port is configured to the result of survey the one kind in input port and output port.
As shown in fig. 7, each LED module can be connected with any one or more in four adjacent LED modules.Accordingly
Ground, first to fourth module input/output port 310a to 310d of the LED modules respectively with four the one of adjacent LED module
Input/output port is connected.
Port control circuit 312 includes providing enable signal to first to fourth input/output port 310a to 310d respectively
First to fourth Enable Pin EN1 to EN4, respectively from first to fourth input/output port 310a to 310d receive input signal
First to fourth signal input part DIN1 to DIN4 and to first to fourth input/output port 310a to 310d transmit believe
Number public signal transmission end TX.
First to fourth module input/output port 310a to 310d has similar circuit structure, below will be with the first mould
Its operation principle is illustrated as a example by group input port 310a.
First module input port 310a include a pull down resistor R1 for ground connection, control end be low level conducting,
Switch CBUF1, one and door A1 that high level disconnects.First Enable Pin EN1 connecting valves CBUF1 of port control circuit 312
Control end and an input with door A1.
When the first Enable Pin EN1 of port control circuit 312 is high level, switch CBUF1 is disconnected, and output high-impedance state is arrived
First input/output terminal DIO1, the external digital signal for not influenceing driving force to be better than resistance R1 passes through the first input/output terminal
DIO1 is input to and door A1.Another input with door A1 is also high level, and external digital signal can transmit defeated to the first signal
Enter to hold DIN1.Therefore, the first input/output port 310a is configured to input port.
It is low level with an input of door A1 when the first Enable Pin EN1 of port control circuit 312 is low level,
First input/output terminal DIO1 is fixed as low level, switch CBUF1 conductings, and switch CBUF1 driving forces are better than resistance R1, believe
Number transmission end TX can transfer data to the first input/output terminal DIO1.Therefore, the first input/output port 310a is configured to defeated
Exit port.
Fig. 8 shows the flow chart of the port controlling method used in module port module 310.Module port module 310
Detect successively first to fourth module input/output port 310a to 310d port signal (step S01 shown in Figure 8,
S03、S05、S07).When the port signal indication signal for detecting within the predetermined time is input into, by corresponding input/output terminal
Mouth is configured to input port, and by other input/output ports be configured as output to port (step S02 shown in Figure 8,
S04, S06, S08 and S10).Conversely, then further detecting the port signal of next input/output port.
Using the control method, it can be ensured that the input that each LED modules only one of which is enabled, so as in whole LED
Unidirectional signal path (including main path and individual path) is formed in the two dimensional surface of lamp array row.
The LED display system that new module builds in above-described embodiment, had both reduced wiring difficulty, can realize that module connects again
The automatic identification of relation is connect, so as to reduce configuration complexity, multi-to-multi line between module is also supported, certain module is greatly reduced
The possibility of display screen large area abnormal show when input drives cannot be provided for next stage module, make the application of LED display
More convenient, performance is more reliable.
According to embodiments of the invention as described above, these embodiments do not have all of details of detailed descriptionthe, not yet
It is only described specific embodiment to limit the invention.Obviously, as described above, can make many modifications and variations, for example, change
Become the number of ports of each module, increase front and back end portses, annexation extended automatic identification to 3-dimensional coordinate etc..This specification is selected
These embodiments are taken and specifically described, is in order to preferably explain principle of the invention and practical application, so that affiliated technology
Art personnel can be used using modification of the invention and on the basis of the present invention well.Protection scope of the present invention should
When the scope defined by the claims in the present invention is defined.
Claims (19)
1. a kind of LED modules, including：
LED light array；
LED drive circuit for driving LED light array；And
For receive input signal and to LED drive circuit provide serial signal module port module,
Wherein, module port module includes the multiple input/output terminals being located at least on the signal path in the first and second directions
Mouthful, first direction and second direction into angle,
At least one port of the multiple input/output port is disposed for the input port from external reception serial signal,
At least another port is disposed for being provided to outside the output port of serial signal,
Wherein, the module port module also includes port control circuit, and the port control circuit is defeated by the multiple input
Each in exit port is configured to one of input port and output port.
2. LED modules according to claim 1, wherein the multiple input/output port is located at the week of the LED modules
Side.
3. LED modules according to claim 1, wherein one kind being shaped as selected from following shape of the LED modules：Circle
Shape, ellipse, polygon.
4. LED modules according to claim 3, wherein the polygon includes rectangle and triangle.
5. LED modules according to claim 4, wherein the LED modules are shaped as rectangle, and the multiple input
One or more ports in output port are located at one side of rectangle.
6. LED modules according to claim 1, wherein the port control circuit includes：
For providing the multiple Enable Pins for enabling signal to the multiple input/output port respectively；
Multiple signal input parts for receiving signal from the multiple input/output port respectively；And
Common signal transmission end for transmitting from signal to the multiple input/output port.
7. LED modules according to claim 6, wherein the multiple input/output port includes respectively：
It is connected to the resistance between input/output terminal and ground；
Be connected between the signal input part of the input/output terminal and the port control circuit with door；And
The switch between the input/output terminal and the signal transmission end of the port control circuit is connected to,
Wherein, described reception from the Enable Pin of the port control circuit with door enables signal as input, and the switch
According to the enable signal conduction or disconnection.
8. LED modules according to claim 7, wherein when the enable signal is high level, described switching off makes
Obtain corresponding input/output port and be configured to input port.
9. LED modules according to claim 7, wherein when the enable signal is low level, the switch conduction makes
Obtain corresponding input/output port and be configured as output to port.
10. a kind of port controlling method of LED modules for any one of claim 1 to 9, including：
The port signal of the multiple input/output port is detected successively；And
Each port in the multiple input/output port is configured to by input port and output port according to port signal
One of,
Wherein, when the port signal indication signal for detecting within the predetermined time is input into, corresponding input/output port is matched somebody with somebody
Input port is set to, and other input/output ports are configured as output to port.
11. port controlling methods according to claim 10, also include：LED drive circuit is believed according to the position of LED modules
Breath receives serial signal and drives LED light array.
A kind of 12. LED display systems, including：
Display screen control end, including at least one communication output mouthful, for providing serial signal；And
LED display, for receiving serial signal from display screen control end, and lights according to serial signal or extinguishes LED,
Wherein, the LED display includes LED module arrays, and the LED module arrays are by according to any in claim 1 to 8
Multiple LED modules composition described in.
13. LED display systems according to claim 12, wherein each LED module in the multiple LED modules with
Adjacent LED modules connection.
14. LED display systems according to claim 13, wherein the multiple LED modules are arranged in rows, and institute
First direction is stated for line direction, the second direction is column direction.
15. LED display systems according to claim 13, wherein at least one of the multiple LED modules LED modules
The LED module connection adjacent with the first direction, and the LED module connection adjacent with the second direction.
16. LED display systems according to claim 13, wherein the multiple LED modules are serially connected, and it is described
One of first order module in multiple LED modules and described at least one communication output mouthful of the display screen control end are even
Connect.
17. LED display systems according to claim 13, wherein the multiple LED modules include the master being serially connected
Path and individual path, wherein, first order module in multiple LED modules and the display screen control end in the main path
The connection of one of at least one communication output mouthful, in first order module in the individual path and the main path
One of the multiple LED modules are connected.
18. LED display systems according to claim 13, wherein the multiple LED modules connect into two-dimensional network, it is described
Each LED module in multiple LED modules is connected between adjacent LED modules.
19. LED display systems according to claim 18, wherein each LED module in the multiple LED modules
A port in the multiple input/output port is configured to input port, and other ports are configured to output port.
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| CN108230993A (en) * | 2018-03-12 | 2018-06-29 | 厦门强力巨彩光电科技有限公司 | A kind of LED display modules and its control method with storage unit |
| CN114664239A (en) * | 2019-07-31 | 2022-06-24 | 深圳市晶泓科技有限公司 | LED display screen |
| CN111128070A (en) * | 2020-01-16 | 2020-05-08 | 上海仰邦科技股份有限公司 | Method and system for obtaining resolution of LED dot matrix display screen |
| US11568792B2 (en) | 2020-12-18 | 2023-01-31 | Novatronics Co., Limited | Driver chip, LED lamp and LED display screen |
| CN113364690B (en) * | 2021-04-21 | 2023-01-31 | 深圳市乐美客视云科技有限公司 | Method, device, terminal and storage medium for determining network transmission path of receiving card |
| CN116364018B (en) * | 2023-03-15 | 2023-11-17 | 北京显芯科技有限公司 | Method for controlling data flow direction, dimmer and backlight unit |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204229809U (en) * | 2014-12-01 | 2015-03-25 | 杭州士兰微电子股份有限公司 | Led module and led display system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0832904A (en) * | 1994-07-20 | 1996-02-02 | Fujitsu General Ltd | Multipanel display system |
| JPH0888820A (en) * | 1994-09-20 | 1996-04-02 | Fujitsu General Ltd | Multi-panel display system |
| CN201048032Y (en) * | 2006-12-29 | 2008-04-16 | 深圳市奥拓电子有限公司 | LED video control system |
| CN101877207B (en) * | 2009-11-18 | 2015-11-25 | 北京巨数数字技术开发有限公司 | A kind of LED display screen system and control method |
| CN101882420B (en) * | 2010-06-07 | 2012-01-11 | 杭州士兰微电子股份有限公司 | Led display system |
| CN103077679A (en) * | 2013-01-05 | 2013-05-01 | 王知康 | Method for combined large-scale LED (light emitting diode) display screen capable of being automatically configured |
-
2014
- 2014-12-01 CN CN201410718122.4A patent/CN104361864B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204229809U (en) * | 2014-12-01 | 2015-03-25 | 杭州士兰微电子股份有限公司 | Led module and led display system |
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