Technical | 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, and led transparent screen manufacturers have been everywhere from few to now. 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 that true? At present, the transparent LED panels produced by many manufacturers are similar. Even if the appearance is different, the structural principle is the same, such as circuit board, lamp beads, wire rod, etc.

Brightness comparison

Press the acrylic plate close to the same number of modules, and then slowly raise it for a short distance to see whether the brightness of the lamp beads can meet their own requirements. Of course, it is more direct to put the module directly in the word. The higher the brightness, the higher the requirements for lamp beads, and the Chen Ben is relatively high. Low brightness can be used in pure indoor environment, but if it is a window led transparent screen or LED glass curtain wall screen, it is required to be a highlighted led transparent screen.

Is the light of the lamp beads uniform

While watching the brightness, pay attention to whether the light of the lamp beads is uniform. When observing the white light, be sure to pay attention to whether there is color difference (this is very important) - if you cover it with a thin white paper, you may not be able to observe it, so use a certain thickness of acrylic. Color difference is the most important part to distinguish the quality, and it is also one of the main reasons for the price difference of LED transparent screen.

Wire discrimination

High quality wire rod has passed UL certification. The manufacturer's description of LED transparent screen is unreliable, so the most direct way is to remove the outer skin and count the number of wire cores inside! The modules with 15, 17, 19 cores or even 20, 30 multi-core wires should be no worse than those with 14, 11 cores, and vice versa.

Bulb temperature

After lighting for a period of time, touch the LED bulb with your hand. If the temperature is very high or even hot, it is certainly not as stable as low temperature.

Solder joint quality

Full solder joints prove that the welding process is good, and high brightness proves that the solder is good; The serious problem is faulty welding, which is prone to poor contact and troublesome subsequent maintenance.

Led transparent screen paste lamp mode

At present, there are two production methods of LED transparent screen, one is positive light-emitting and the other is side light-emitting. Although the permeability of side light-emitting is relatively high, the lamp bead packaging technology needs to be tested by the market, and the positive light-emitting lamp bead adopts the lamp bead of traditional LED display screen. After market test, the quality is very stable.

PCB thickness

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

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Sunrise LED Display manufacturer