2021-10-14
The led transparent screen is one of the most popular products in the led display. It has a wide range of applications and novel designs. It is usually used as a shop window, etc. Then do you know how to distinguish the quality of a transparent led display? Just take everyone to understand
Brightness comparison
Place the acrylic board close to the same number of modules and slowly raise a small 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 higher the cost. Pure indoor environment can use low brightness, but if it is a window LED transparent screen or LED glass curtain wall screen, then a high-bright LED transparent screen is required.
Is the light of the lamp beads uniform?
While viewing the brightness, pay attention to whether the light of the lamp beads is uniform, and when observing the white light, be sure to pay attention to whether there is any color difference (this is quite important)-if you cover it with a thin white paper, it may not be observed, so Use a certain thickness of acrylic. The presence or absence of color difference is the most important part of distinguishing quality, and it is also one of the main reasons for the price difference of LED transparent screens.
Wire identification
High-quality wires, through UL certification, LED transparent screen manufacturers that do not pass the instructions are unreliable, so the most direct way is to peel off the outer skin, count the number of cores inside! Use 15, 17, 19 cores or even 20, 30 The core wire module should be no worse than the 14 and 11 core modules, and vice versa.
Lamp bead temperature
After lighting up for a period of time, touch the LED lamp beads with your hand, the temperature is very high or even hot, it is certainly not as stable as the low temperature.
Solder joint quality
The full solder joints prove that the soldering process is good, and the high brightness proves that the solder is used well; the more serious is the false soldering, which is prone to poor contact and troublesome follow-up maintenance.
LED transparent screen sticking method
At present, there are two manufacturing methods for LED transparent screens, one is positive light emission and the other is side light emission. Although the side-emitting light has a relatively high transmittance, the positive light-emitting lamp bead is the lamp bead of the traditional LED display. After market inspection, the quality is very stable.