it’s not easy to assemble all the led electronic display screens, just like configuring an assembled computer. even the assembly of the led display screen is more complex, and there are more steps to pay attention to. it is connected by many modules, and the module is assembled by many beads. the steps are one after another. the rings should be carefully, otherwise the effect of led display will be affected. and the important thing of led display is the connection, once the connection is not good, the next step is not good. so today i’m going to talk about how to connect the led display screen. only by understanding these aspects of knowledge, the led display will be safer and more effective, because it is also related to the high brightness power of the led display. the cost of a single package of high-power high-brightness led is high, but the power of a single high-brightness led display is very small. therefore, it is necessary to arrange and combine multiple led display screens according to the requirements. on the one hand, it can meet the requirements of wide range, high brightness, dynamic display, color change and other applications.
on the other hand, it can meet the requirements of driver matching matching with led. following is introduction of four types of led display connection:
first, the whole series connection form: in the general simple series connection mode, the led 1-n is connected with the head and the tail, and the current flowing through the led display screen is equal when it works. the other is the improved serial connection mode with bypass which is 1.1.
second, the whole parallel connection form: one is simple parallel connection form, the other is independent matching parallel connection form. in the simple parallel mode, the first and last of the led 1-n are connected in parallel, and the voltage on each led is equal when working. this kind of reliability is not high, but it is also contended to adopt a parallel form of independent matching for this problem, which has the characteristics of good driving effect, complete protection of a single led display screen, no impact on other work when the fault occurs, and matching can be quite different.
3. mixed connection form: the advantages of parallel connection and series connection proposed by the appeal statement are synthesized respectively. they also include two kinds. one is series-parallel hybrid mode, the other is parallel-series hybrid mode.
4. cross-array: cross-array is proposed to improve the reliability of led display and reduce the failure rate.