LED Screen Driving Method - Static and Scan
In last knowledge page, we have generally introduced the concept of staic driving method of led screen, and scan driving method of led screen. Knowing this, we'd introduce further of the differences and advantages in its practical application.
Which led screen is better to choose static driving method, and which led screen is better to choose scan driving method? Before answering this question, we'd go back to its feature. Different from the static driving method, for the screen with scan driving method, at the same time, there're only a part of the LEDs turned on. It results that the brightness of scan driving led screen lower than static driving screen. So the answer is very clear: static driving led screen is good for outdoors, which would require a higher brightness under the direct sunlight. There do existing some saying that "nowadays it's no necessary to choose static driving method for outdoor led screens". But we don't quite agree with that. Although the brightness of LED has greatly improved than in past and the scan driving would satisfy the brightness requirement, still we need to know clear another issue is that static driving led screen would have longer lifetime than the scan driving led screen. The reason is very easy to understand - the LEDs on the scan driving led screen flicker much more frequently than the static driving led screen. Just simply imagine, one lamp would easily burn if you turn on and turn off continuously.
Why some led screen manufacturers coach this idea to the clients? COST. The scan driving led screen requires less driving IC.
But that doesn't mean the scan driving method has no advantage at all. The static driving method is very popular for the P16, P20, P25 outdoor led screens, but it's not popular at all for the smaller pitch outdoor led screens and indoor ones. The reason is for the smaller pitch led screens, with the static driving method, the big quantity of driving IC would make the electronic circuit very complex, which would rise the possibility of mulfunction. As well, the power consumption of the led screen would go higher much. So for the indoor led screens and small pitch outdoor led screens, it's better to choose the scan driving method because with so many LEDs, the brightness would finally not a problem, and both the mulfunction possibility and power consumption would greatly reduced.
So as the conclusion, when we make a solution, though the result is possible to be the same with common sayings, we still need to know the reason why. Only in this way, we would have the capability to create new ideas, and make the led screen solution really considerate.
Which led screen is better to choose static driving method, and which led screen is better to choose scan driving method? Before answering this question, we'd go back to its feature. Different from the static driving method, for the screen with scan driving method, at the same time, there're only a part of the LEDs turned on. It results that the brightness of scan driving led screen lower than static driving screen. So the answer is very clear: static driving led screen is good for outdoors, which would require a higher brightness under the direct sunlight. There do existing some saying that "nowadays it's no necessary to choose static driving method for outdoor led screens". But we don't quite agree with that. Although the brightness of LED has greatly improved than in past and the scan driving would satisfy the brightness requirement, still we need to know clear another issue is that static driving led screen would have longer lifetime than the scan driving led screen. The reason is very easy to understand - the LEDs on the scan driving led screen flicker much more frequently than the static driving led screen. Just simply imagine, one lamp would easily burn if you turn on and turn off continuously.
Why some led screen manufacturers coach this idea to the clients? COST. The scan driving led screen requires less driving IC.
But that doesn't mean the scan driving method has no advantage at all. The static driving method is very popular for the P16, P20, P25 outdoor led screens, but it's not popular at all for the smaller pitch outdoor led screens and indoor ones. The reason is for the smaller pitch led screens, with the static driving method, the big quantity of driving IC would make the electronic circuit very complex, which would rise the possibility of mulfunction. As well, the power consumption of the led screen would go higher much. So for the indoor led screens and small pitch outdoor led screens, it's better to choose the scan driving method because with so many LEDs, the brightness would finally not a problem, and both the mulfunction possibility and power consumption would greatly reduced.
 |
| building outdoor advertising LED billboard |
So as the conclusion, when we make a solution, though the result is possible to be the same with common sayings, we still need to know the reason why. Only in this way, we would have the capability to create new ideas, and make the led screen solution really considerate.
SMD Screen is better to choose static marketing method, as the SMD Screens are better than the other methods Marketing. we'd go back to its feature. Different from the static promotion methods, for the screen with scan marketing method, at the same time, there're only a part of the SMD turned on.
ReplyDelete