7 elements tell you how to judge whether the LED transparent screen is good or bad

7 elements tell you how to judge whether the LED transparent screen is good or bad

 

LED transparent screen has been sold in full swing, LED transparent screen manufacturers have been from a few to now everywhere, how to judge the quality of LED transparent screen? Some people say that the quality of the box can be roughly judged by the appearance, is this really the case? At present, many manufacturers produce similar transparent LED panels, even if the appearance is different, the construction principle is the same, circuit boards, lamp beads, wires, etc.

 

 

01. Brightness comparison

Place the acrylic plate close to the same number of modules and then slowly increase the distance to see if the brightness of the lamp beads can meet your requirements. Of course, it is more direct to put the module directly in the word, the higher the brightness, the higher the requirements for the lamp beads, and the cost is relatively high. It is okay to use low brightness in a pure indoor environment, but if it is a window LED transparent screen or LED glass curtain wall screen, then it is required to be a high-brightness LED transparent screen.

 

02. Whether the light of the lamp beads is uniform

While looking at the brightness, pay attention to whether the light of the lamp beads is uniform, and pay attention to whether there is any chromatic aberration when observing white light (this is quite important) - if you cover it with a thin piece of white paper, it may not be observed, so use a certain thickness of acrylic. Whether there is color difference or not is the most important part of distinguishing between good and bad quality, and it is also one of the main reasons for the price difference of LED transparent screen.

 

03. Wire identification

High-quality wires, through UL certification, these through the LED transparent screen manufacturers explain unreliable, so the most direct way is to open the skin, count the number of cores inside! with 15, 17, 19 cores or even 20, 30 more than the core of the module should be no worse than 14, 11 core module, and vice versa.

 

04. lamp bead temperature

After lighting up for a period of time, touch the LED lamp beads with your hands, the temperature is very high or even hot, and the stability is definitely not as good as the low temperature.

 

05.Quality of solder joints

The solder joint is full to prove that the soldering process is good, and the brightness is high to prove that the solder is good; The serious thing is virtual welding, which is prone to poor contact and troublesome follow-up maintenance.

 

06.LED transparent screen sticker light method

At present, there are two production methods for LED transparent screens, one is positive light, and the other is side light. Although the permeability of the side light is relatively high, the lamp bead packaging technology needs to be tested by the market, and the lamp bead that is emitting is the lamp bead of the traditional LED display, which has been tested by the market and the quality is very stable.

 

07. PCB board thickness

If the positive light-emitting PCB board is relatively thick, it will affect the transparency of the LED transparent screen.