Seven ways to identify the quality of LED transparent screen good and bad
LED transparent screen has been sold in full swing, LED transparent screen manufacturers have been from few to now everywhere, how to judge the LED transparent screen good or bad? Some people say that through the appearance of the box can be roughly determine the quality, is this really the case?
At present, many LED display manufacturers produce transparent LED panel is very similar, even if the appearance is different, the construction principle is the same, circuit boards, lamp beads, wires and so on. How to find a good transparent LED display with our fiery eyes of gold, the following is a small introduction to you.
1, brightness comparison, the acrylic plate close to the same number of modules and then slowly raise a small distance, this time to watch the lamp beads brightness can meet their requirements. Of course, the module is placed directly in the word inside more directly, the higher the brightness of the lamp bead requirements are also higher, the cost is relatively high. Pure indoor environment using low brightness can be, but if the window LED transparent screen or LED glass curtain wall screen, then it is required to be high brightness LED transparent screen can be.
2, in watching the brightness at the same time, pay attention to whether the light beads of the light is uniform, in the observation of white light must pay attention to whether there is no chromatic aberration (this is quite important) - if a thin piece of white paper covered in the above may not be observed, so to use a certain thickness of acrylic. There is no color difference is the most important part of the distinction between good and bad quality, but also leads to one of the main reasons for the price difference of LED transparent screen.
3, wire identification. High-quality wire, through the UL certification, these through the LED transparent screen manufacturers indicate unreliable, so the most direct method is to dial open the outer skin, count the number of cores inside! With 15,17,19 cores or even 20,30 multi-core wire module should not be worse than 14,11 core module, and vice versa.
4, lamp bead temperature. After lighting for a period of time, touch the LED lamp bead, the temperature is very high and even hot, certainly not as stable as the low temperature.
5, the quality of the solder joints. Solder joints full of proof of good welding process, high brightness proof of solder with good; serious is welding, easy to contact phenomenon, follow-up maintenance trouble.
6, LED transparent screen paste light way: at present, there are two kinds of LED transparent screen production, one is positive light-emitting, one is side light-emitting. Side light-emitting although the transmittance rate is relatively high, but the lamp bead encapsulation technology to be tested in the market, while the positive light-emitting lamp beads are used is the traditional LED display lamp beads, through the market test, the quality is very stable.
7, PCB thickness. Positive light-emitting PCB board if thicker, it will affect the transmittance rate of LED transparent screen.
