CN103474029B - Led display system and control method thereof - Google Patents
Led display system and control method thereof Download PDFInfo
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- CN103474029B CN103474029B CN201310410891.3A CN201310410891A CN103474029B CN 103474029 B CN103474029 B CN 103474029B CN 201310410891 A CN201310410891 A CN 201310410891A CN 103474029 B CN103474029 B CN 103474029B
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Abstract
The invention provides a kind of LED display system and control method thereof, by multiple LED unit plate connected in turn, first LED unit plate is connected with an output communication port of LED control panel by configurable I/O communication port; Last LED unit plate is connected with another output communication port of LED control panel by configurable I/O communication port, thus, LED control panel is by two output communication ports timesharing/output signal simultaneously, the probability that each LED unit plate all can receive signal can be improved, thus reduce because a certain block of LED unit plate cannot the follow-up polylith LED unit plate that causes of the transmission of signal risk that cannot show, improve the display quality of LED display system.
Description
Technical field
The present invention relates to LED display technique, particularly a kind of LED display system and control method thereof.
Background technology
Present stage, LED display technique is at large-scale outdoor display screen, more and more universal in the decorative applications such as stage background and buildings external wall of building.These LED display system are composed in series by certain ad hoc fashion by one piece of LED control panel and some blocks of LED unit plates usually.
Publication number is CN101882420A(application number is 201010194273.6), publication date is propose a kind of display system in the application for a patent for invention of 2010.11.10, this display system adopts the unified LED unit plate with two identical I/O communication ports that can automatically configure, any one in two identical I/O communication ports that can automatically configure can be connected during the series connection of LED unit plate, without the need to rotating when each LED unit plate is installed, automatically the automatic configuration of the I/O attribute of the configurable I/O communication port of LED unit plate is realized.
In the LED display system that foregoing invention patented claim describes, if when a certain block of LED unit plate provides input queued switches cannot to next stage LED unit plate, the all LED unit plates be connected in series after will causing this part LED unit plate cannot transmission of signal, because each block LED unit plate all manages a fairly large number of LED pixel, this will cause LED display to occur the abnormal show of larger area when applying, and brings considerable influence to the application of LED display.
Summary of the invention
The object of the present invention is to provide a kind of LED display system and control method thereof, to reduce in existing LED display system, if when a certain block of LED unit plate provides input queued switches cannot to next stage LED unit plate, the risk that all LED unit plates be connected in series after will causing this part LED unit plate cannot show.
For solving the problems of the technologies described above, the invention provides a kind of LED display system, described LED display system comprises:
LED control panel, described LED control panel comprises two output communication ports;
Multiple LED unit plate, each LED unit plate comprises two identical configurable I/O communication ports;
Multiple LED unit plate is connected in turn by configurable I/O communication port;
Wherein, in multiple LED unit plate connected in turn, first LED unit plate is connected with an output communication port of LED control panel by configurable I/O communication port; Last LED unit plate is connected with another output communication port of LED control panel by configurable I/O communication port.
Optionally, in described LED display system, two output communication port timesharing output signals of described LED control panel; Or two output communication ports of described LED control panel output signal simultaneously.
Optionally, in described LED display system, described signal is display or control signal.
Optionally, in described LED display system, in the configurable I/O communication port that two of each LED unit plate are identical, one of them is configured to input communication port, and another is configured to output communication port.
The present invention also provides a kind of LED display system control method, two output communication port timesharing output signals of LED control panel, and one takes turns signal output comprises:
An output communication port output signal of step 10:LED control panel, in multiple LED unit plate connected in turn, first the LED unit plate that the communication port outputed signal with LED control panel is connected receives described signal, and the order of connection of foundation LED unit plate, transmit described signal.
Optionally, in described LED display system control method, one takes turns signal output also comprises:
Another output communication port of step 20:LED control panel does not detect coupled LED unit plate and whether provides correct signal, direct output signal, in multiple LED unit plate connected in turn, first the LED unit plate that the communication port outputed signal with LED control panel is connected receives described display, and according to the order of connection of LED unit plate, transmit described display.
Optionally, in described LED display system control method, when have in multiple LED unit plate connected in turn a LED unit plate cannot transmission of signal time, take turns in the output procedure of signal one, except cannot the LED unit plate of transmission of signal, all the other LED unit plates all receive correct signal, and all the other LED unit plates show according to the signal received.
Optionally, in described LED display system control method, when multiple LED unit plate connected in turn is all normal, take turns in the output procedure of signal one, each LED unit plate all receives former and later two correct signals, and each LED unit plate all shows according to any one signal received.
Optionally, in described LED display system control method, one takes turns signal output also comprises:
Whether the LED unit plate that another output communication Port detecting of step 20:LED control panel is coupled provides correct signal, if incorrect, another output communication port output signal of LED control panel, in multiple LED unit plate connected in turn, first the LED unit plate that the communication port outputed signal with LED control panel is connected receives described signal, and according to the order of connection of LED unit plate, transmit described signal.
Optionally, in described LED display system control method, if correctly, another output communication port of LED control panel does not output signal, and one takes turns signal end of output.
The present invention also provides a kind of LED display system control method, and two output communication ports of LED control panel output signal simultaneously, and one takes turns signal output comprises:
Two output communication ports of LED control panel output signal simultaneously, in multiple LED unit plate connected in turn, first first LED unit plate and last LED unit plate receive described signal, and the order of connection of foundation LED unit plate, transmit described signal.
Optionally, in described LED display system control method, when have in multiple LED unit plate connected in turn a LED unit plate cannot transmission of signal time, take turns in the output procedure of signal one, except cannot the LED unit plate of transmission of signal, all the other LED unit plates all receive a signal, and all the other LED unit plates show according to the signal received.
Optionally, in described LED display system control method, when multiple LED unit plate connected in turn is all normal, take turns in the output procedure of signal one, except the LED unit plate of two signal meets, each LED unit plate all receives a signal, and each LED unit plate shows according to the signal received.
Optionally, in described LED display system control method, the LED unit plate of two signal meets selects one of them signal to show, and the transmission of stop signal.
In LED display system provided by the invention and control method thereof, by multiple LED unit plate connected in turn, first LED unit plate is connected with an output communication port of LED control panel by configurable I/O communication port; Last LED unit plate is connected with another output communication port of LED control panel by configurable I/O communication port, thus, LED control panel is by two output communication ports timesharing/output signal simultaneously, the probability that each LED unit plate all can receive signal can be improved, thus reduce because a certain block of LED unit plate cannot the follow-up polylith LED unit plate that causes of the transmission of signal risk that cannot show, improve the display quality of LED display system.
Accompanying drawing explanation
Fig. 1 is the structural representation of the LED display system of the embodiment of the present invention;
Fig. 2 is the schematic diagram of LED display system under mode of operation 1 of the embodiment of the present invention;
Fig. 3 is the schematic diagram of LED display system under mode of operation 2 of the embodiment of the present invention.
Embodiment
The LED display system proposed the present invention below in conjunction with the drawings and specific embodiments and control method thereof are described in further detail.According to the following describes and claims, advantages and features of the invention will be clearer.It should be noted that, accompanying drawing all adopts the form that simplifies very much and all uses non-ratio accurately, only in order to object that is convenient, the aid illustration embodiment of the present invention lucidly.
Please refer to Fig. 1, it is the structural representation of the LED display system of the embodiment of the present invention.As shown in Figure 1, described LED display system comprises:
LED control panel 10, described LED control panel 10 comprises two output communication ports, is respectively output communication port A and output communication port B;
Multiple LED unit plate, each LED unit plate comprises two identical configurable I/O communication ports;
Multiple LED unit plate is connected in turn by configurable I/O communication port;
Wherein, in multiple LED unit plate connected in turn, first LED unit plate is connected with an output communication port of LED control panel by configurable I/O communication port; Last LED unit plate is connected with another output communication port of LED control panel by configurable I/O communication port.
In the present embodiment, the quantity of LED unit plate is M*N, and the capable N row arrangement in M, wherein M and N is natural number.Concrete, first LED unit plate 211 is connected with second LED unit plate 212 by configurable I/O communication port, wherein, the configurable I/O communication port (in this case right output port) of first LED unit plate 211 is connected with the configurable I/O communication port (in this case left port) of second LED unit plate 212, second LED unit plate 212 is connected with the 3rd LED unit plate (not shown in figure 1) by configurable I/O communication port, wherein, the configurable I/O communication port (in this case right output port) of second LED unit plate 212 is connected with the configurable I/O communication port (in this case left port) of the 3rd LED unit plate, the rest may be inferred, until arrive last LED unit plate 21N of the first row, then, last LED unit plate 21N of the first row by first LED unit plate 221(of configurable I/O communication port and the second row at this, the first row and the second row, also namely odd number is capable just in time contrary with the head and the tail LED unit plate of even number line, namely the LED unit plate that odd number is capable first using left side LED unit plate is as first LED unit plate, the LED unit plate of even number line using right side first LED unit plate as first LED unit plate, a kind of connected mode is illustrate only at this) connect, wherein, the configurable I/O communication port (in this case right output port) of last LED unit plate 21N of the first row is connected with the configurable I/O communication port (in this case right output port) of first LED unit plate 221 of the second row, first LED unit plate 221 of the second row is connected with second LED unit plate 222 of the second row by configurable I/O communication port, wherein, the configurable I/O communication port (in this case left port) of first LED unit plate 221 of the second row is connected with the configurable I/O communication port (in this case right output port) of second LED unit plate 222 of the second row, the rest may be inferred, until to last LED unit plate 22N of the second row, then last LED unit plate 22N of the second row is connected with first LED unit plate 231 of the third line by configurable I/O communication port, namely the situation of the LED unit plate of repetition the first row is equivalent to, do not repeat them here, the rest may be inferred, until be connected to last LED unit plate 2MN.
Please continue to refer to Fig. 1, in M*N the LED unit plate connected in turn, first LED unit plate 211 is connected with the output communication port A of LED control panel by configurable I/O communication port (in this case left port); Last LED unit plate 2MN is connected with the output communication port B of LED control panel by configurable I/O communication port (in this case left port).
In the present embodiment, described LED control panel 10 outputs signal by arbitrary output communication port (output communication port A or output communication port B); Or described LED control panel 10 outputs signal by two output communication ports (output communication port A and output communication port B).Wherein, described signal is display or control signal.Meanwhile, in the configurable I/O communication port that two of each LED unit plate are identical, one of them (such as left) is configured to input communication port, and another (such as right) is configured to output communication port; Or one of them (such as left) is configured to output communication port, another (such as right) is configured to input communication port.Wherein, can be CN101882420A(application number with reference to publication number about I/O communication port configurable in LED unit plate be 201010194273.6), publication date is the application for a patent for invention of 2010.11.10, and the application repeats no more this.
Subsequent, will the control method of above-mentioned LED display system be further described, in the present embodiment, propose the control method of two kinds of LED display system, specific as follows:
Please refer to Fig. 2, it is the schematic diagram of LED display system under mode of operation 1 of the embodiment of the present invention.As shown in Figure 2, mode of operation 1 time, two output communication port timesharing output signals of LED control panel, one takes turns signal exports and comprises:
An output communication port output signal of step 10:LED control panel, in multiple LED unit plate connected in turn, first first LED unit plate or last LED unit plate receive described signal, and the order of connection of foundation LED unit plate, transmit described signal.
Mode of operation 1 time, take turns in the process that signal exports one, another output communication port of LED control panel has two kinds of processing modes:
Whether the LED unit plate that another output communication Port detecting of the LED of being control panel a kind of is coupled provides correct signal, and do different process according to testing result: if incorrect, then another output communication port output signal of LED control panel, in multiple LED unit plate connected in turn, first the LED unit plate that the communication port outputed signal with LED control panel is connected receives described signal, and according to the order of connection of LED unit plate, transmit described signal; If correct, then another output communication port of LED control panel does not output signal, and one takes turns signal end of output.
Another kind is that another output communication port of LED control panel does not detect coupled LED unit plate and whether provides correct signal, the output (namely directly outputing signal) of direct executive signal, then in multiple LED unit plate connected in turn, first the LED unit plate that the communication port outputed signal with LED control panel is connected receives described display, and according to the order of connection of LED unit plate, transmit described display.
Under the first processing mode, whether cannot the LED unit plate of transmission of signal, each normal LED unit plate all receives a signal, and therefore each normal LED unit plate only needs a signal according to receiving to carry out showing if no matter having.
Under the second processing mode, whether have cannot the LED unit plate of transmission of signal will the working method of the normal LED unit plate of impact, therefore, subsequent this to be further described.
When multiple LED unit plate connected in turn is all normal, take turns in the output procedure of signal one, each LED unit plate all receives former and later two correct signals, and each LED unit plate all shows according to any one signal received.
Such as, take turns in signal output one, first output communication port A outputs signal, then in multiple LED unit plate connected in turn, first LED unit plate 211 first Received signal strength, first LED unit plate 211 is after the signal that have received output communication port A output, the signal received sends backward, namely the signal of reception is sent to second LED unit plate 212 by first LED unit plate 211, the signal of reception is sent to the 3rd LED unit plate by second LED unit plate 212, by that analogy, until to last LED unit plate 2MN, thus each LED unit plate all can receive a signal (i.e. previous signal),
Then, take turns in signal output same, output communication port B outputs signal, then in multiple LED unit plate connected in turn, last LED unit plate 2MN first Received signal strength, last LED unit plate 2MN is after the signal that have received output communication port B output, the signal received sends forward, namely the signal of reception is sent to penultimate LED unit plate 2M(N-1 by last LED unit plate 2MN), penultimate LED unit plate 2M(N-1) signal of reception is sent to third from the bottom LED unit plate, by that analogy, until to first LED unit plate 211, thus each LED unit plate all can receive a signal (i.e. a rear signal).
And at this, the signal that each LED unit plate all can export according to communication port A or the signal that communication port B exports show.
When have in multiple LED unit plate connected in turn a LED unit plate cannot transmission of signal time, take turns in the output procedure of signal one, except cannot the LED unit plate of transmission of signal, all the other LED unit plates all receive correct signal, and all the other LED unit plates show according to the signal received.
Such as, LED unit plate X cannot transmission of signal, take turns in signal output one, first output communication port A outputs signal, then in multiple LED unit plate connected in turn, first LED unit plate 211 first Received signal strength, first LED unit plate 211 is after the signal that have received output communication port A output, the signal received sends backward, namely the signal of reception is sent to second LED unit plate 212 by first LED unit plate 211, the signal of reception is sent to the 3rd LED unit plate by second LED unit plate 212, by that analogy, until to LED unit plate X,
Then, take turns in signal output same, output communication port B outputs signal, then in multiple LED unit plate connected in turn, last LED unit plate 2MN first Received signal strength, last LED unit plate 2MN is after the signal that have received output communication port B output, the signal received sends forward, namely the signal of reception is sent to penultimate LED unit plate 2M(N-1 by last LED unit plate 2MN), penultimate LED unit plate 2M(N-1) signal of reception is sent to third from the bottom LED unit plate, by that analogy, same until to LED unit plate X.
Thus, take turns in the output procedure of signal one, except cannot the LED unit plate X of transmission of signal, all the other LED unit plates all receive correct signal, and all the other LED unit plates all show according to the signal received.
As fully visible, LED control panel is by two output communication port timesharing output signals, the probability that each LED unit plate all can receive signal can be improved, thus reduce because a certain block of LED unit plate cannot the follow-up polylith LED unit plate that causes of the transmission of signal risk that cannot show, improve the display quality of LED display system.
Then, please refer to Fig. 3, it is the schematic diagram of LED display system under mode of operation 2 of the embodiment of the present invention.As shown in Figure 3, mode of operation 2 times, two output communication ports of LED control panel output signal simultaneously, and one takes turns signal exports and comprises:
Two output communication ports of LED control panel output signal simultaneously, in multiple LED unit plate connected in turn, first first LED unit plate and last LED unit plate receive described signal, and the order of connection of foundation LED unit plate, transmit described signal.
At this, when multiple LED unit plate connected in turn is all normal, take turns in the output procedure of signal one, except the LED unit plate of two signal meets, each LED unit plate all receives a signal, and each LED unit plate shows according to the signal received.Because two output communication ports of LED control panel output signal simultaneously, therefore, two signals will converge at some LED unit plate places, and now, the LED unit plate of this meet will select one of them signal, and the transmission of stop signal.Thus each LED unit plate all receives a signal.
Such as, take turns in signal output one, output communication port A outputs signal, then in multiple LED unit plate connected in turn, first LED unit plate 211 first Received signal strength, first LED unit plate 211 is after the signal that have received output communication port A output, the signal received sends backward, namely the signal of reception is sent to second LED unit plate 212 by first LED unit plate 211, the signal of reception is sent to the 3rd LED unit plate by second LED unit plate 212, by that analogy, until converge to some LED unit plate places, such as LED unit plate X, thus first LED unit plate 211 to LED unit plate X all can receive a signal,
While output communication port A outputs signal, output communication port B also outputs signal, then in multiple LED unit plate connected in turn, last LED unit plate 2MN first Received signal strength, last LED unit plate 2MN is after the signal that have received output communication port B output, the signal received sends forward, namely the signal of reception is sent to penultimate LED unit plate 2M(N-1 by last LED unit plate 2MN), penultimate LED unit plate 2M(N-1) signal of reception is sent to third from the bottom LED unit plate, by that analogy, until converge to some LED unit plate places, such as LED unit plate X, thus last LED unit plate 2MN all can receive a signal to LED unit plate X.
Now, LED unit plate X selects one of them signal to show, and the signal that all the other LED unit plates all export according to the communication port received shows.
When have in multiple LED unit plate connected in turn a LED unit plate cannot transmission of signal time, take turns in the output procedure of signal one, except cannot the LED unit plate of transmission of signal, all the other LED unit plates all receive a signal, and all the other LED unit plates show according to the signal received.
Such as, LED unit plate X cannot transmission of signal, take turns in signal output one, output communication port A outputs signal, then in multiple LED unit plate connected in turn, first LED unit plate 211 first Received signal strength, first LED unit plate 211 is after the signal that have received output communication port A output, the signal received sends backward, namely the signal of reception is sent to second LED unit plate 212 by first LED unit plate 211, the signal of reception is sent to the 3rd LED unit plate by second LED unit plate 212, by that analogy, until to LED unit plate X,
While output communication port A outputs signal, output communication port B also outputs signal, then in multiple LED unit plate connected in turn, last LED unit plate 2MN first Received signal strength, last LED unit plate 2MN is after the signal that have received output communication port B output, the signal received sends forward, namely the signal of reception is sent to penultimate LED unit plate 2M(N-1 by last LED unit plate 2MN), penultimate LED unit plate 2M(N-1) signal of reception is sent to third from the bottom LED unit plate, by that analogy, same until to LED unit plate X.
Thus, take turns in the output procedure of signal one, except cannot the LED unit plate X of transmission of signal, all the other LED unit plates all receive a signal, and all the other LED unit plates all show according to the signal received.
As fully visible, LED control panel is outputed signal by two output communication ports simultaneously, the probability that each LED unit plate all can receive signal can be improved, thus reduce because a certain block of LED unit plate cannot the follow-up polylith LED unit plate that causes of the transmission of signal risk that cannot show, improve the display quality of LED display system.
Foregoing description is only the description to present pre-ferred embodiments, any restriction not to the scope of the invention, and any change that the those of ordinary skill in field of the present invention does according to above-mentioned disclosure, modification, all belong to the protection domain of claims.
Claims (6)
1. a LED display system, is characterized in that, comprising:
LED control panel, described LED control panel comprises two output communication ports;
Multiple LED unit plate, each LED unit plate comprises two identical configurable I/O communication ports, and one of them is configured to input communication port, and another is configured to output communication port;
Multiple LED unit plate is connected in turn by configurable I/O communication port;
Wherein, in multiple LED unit plate connected in turn, first LED unit plate is connected with an output communication port of LED control panel by configurable I/O communication port; Last LED unit plate is connected with another output communication port of LED control panel by configurable I/O communication port;
Described LED display system comprises mode of operation 1 and mode of operation 2:
Mode of operation 1 time, two output communication port timesharing output signals of described LED control panel, one takes turns signal exports and comprises:
An output communication port output signal of described LED control panel, in multiple LED unit plate connected in turn, first first LED unit plate or last LED unit plate receive described signal, and the order of connection of foundation LED unit plate, transmit described signal;
Mode of operation 1 time, take turns in the process that signal exports one, another output communication port of described LED control panel has two kinds of processing modes:
The first processing mode is whether the coupled LED unit plate of another output communication Port detecting of LED control panel provides correct signal, and do different process according to testing result: if incorrect, then another output communication port output signal of LED control panel, in multiple LED unit plate connected in turn, first the LED unit plate that the communication port outputed signal with LED control panel is connected receives described signal, and according to the order of connection of LED unit plate, transmit described signal; If correct, then another output communication port of LED control panel does not output signal, and one takes turns signal end of output;
The second processing mode is that another output communication port of LED control panel does not detect coupled LED unit plate and whether provides correct signal, the output of direct executive signal, then in multiple LED unit plate connected in turn, first the LED unit plate that the communication port outputed signal with LED control panel is connected receives described signal, and according to the order of connection of LED unit plate, transmit described signal;
Under the second processing mode, when multiple LED unit plate connected in turn is all normal, take turns in the output procedure of signal one, each LED unit plate all receives former and later two correct signals, and each LED unit plate all shows according to any one signal received;
Mode of operation 2 times, two output communication ports of LED control panel output signal simultaneously, one takes turns signal output comprises: two output communication ports of LED control panel output signal simultaneously, in multiple LED unit plate connected in turn, first first LED unit plate and last LED unit plate receive described signal, and according to the order of connection of LED unit plate, transmit described signal;
When multiple LED unit plate connected in turn is all normal, take turns in the output procedure of signal one, except the LED unit plate of two signal meets, each LED unit plate all receives a signal, and each LED unit plate shows according to the signal received; Because two output communication ports of LED control panel output signal simultaneously, therefore, two signals will converge at some LED unit plate places, now, the LED unit plate of this meet will select one of them signal, and the transmission of stop signal, thus each LED unit plate all receives a signal.
2. LED display system as claimed in claim 1, it is characterized in that, described signal is display or control signal.
3. a LED display system control method, is characterized in that, two output communication port timesharing output signals of LED control panel, and one takes turns signal output comprises:
An output communication port output signal of step 10:LED control panel, in multiple LED unit plate connected in turn, first the LED unit plate that the communication port outputed signal with LED control panel is connected receives described signal, and the order of connection of foundation LED unit plate, transmit described signal;
Take turns in the process of signal output one, another output communication port of described LED control panel has two kinds of processing modes:
The first processing mode is whether the coupled LED unit plate of another output communication Port detecting of LED control panel provides correct signal, and do different process according to testing result: if incorrect, then another output communication port output signal of LED control panel, in multiple LED unit plate connected in turn, first the LED unit plate that the communication port outputed signal with LED control panel is connected receives described signal, and according to the order of connection of LED unit plate, transmit described signal; If correct, then another output communication port of LED control panel does not output signal, and one takes turns signal end of output;
The second processing mode is that another output communication port of LED control panel does not detect coupled LED unit plate and whether provides correct signal, the output of direct executive signal, then in multiple LED unit plate connected in turn, first the LED unit plate that the communication port outputed signal with LED control panel is connected receives described signal, and according to the order of connection of LED unit plate, transmit described signal;
Under the second processing mode, when multiple LED unit plate connected in turn is all normal, take turns in the output procedure of signal one, each LED unit plate all receives former and later two correct signals, and each LED unit plate all shows according to any one signal received.
4. LED display system control method as claimed in claim 3, it is characterized in that, when have in multiple LED unit plate connected in turn a LED unit plate cannot transmission of signal time, take turns in the output procedure of signal one, except cannot the LED unit plate of transmission of signal, all the other LED unit plates all receive correct signal, and all the other LED unit plates described show according to the signal received.
5. a LED display system control method, is characterized in that, two output communication ports of LED control panel output signal simultaneously, and one takes turns signal output comprises:
Two output communication ports of LED control panel output signal simultaneously, in multiple LED unit plate connected in turn, first first LED unit plate and last LED unit plate receive described signal, and the order of connection of foundation LED unit plate, transmit described signal;
When multiple LED unit plate connected in turn is all normal, take turns in the output procedure of signal one, except the LED unit plate of two signal meets, each LED unit plate all receives a signal, and each LED unit plate shows according to the signal received; Because two output communication ports of LED control panel output signal simultaneously, therefore, two signals will converge at some LED unit plate places, now, the LED unit plate of this meet will select one of them signal, and the transmission of stop signal, thus each LED unit plate all receives a signal.
6. LED display system control method as claimed in claim 5, it is characterized in that, when have in multiple LED unit plate connected in turn a LED unit plate cannot transmission of signal time, take turns in the output procedure of signal one, except cannot the LED unit plate of transmission of signal, all the other LED unit plates all receive a signal, and all the other LED unit plates show according to the signal received.
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| CN101673493A (en) * | 2009-08-18 | 2010-03-17 | 北京巨数数字技术开发有限公司 | LED display system |
| CN101882420A (en) * | 2010-06-07 | 2010-11-10 | 杭州士兰微电子股份有限公司 | Led display system |
| CN102800282A (en) * | 2012-08-17 | 2012-11-28 | 苏州君嬴电子科技有限公司 | Recognition method and recognition system of LED display screen |
| 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 |
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| CN103474029A (en) | 2013-12-25 |
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