How to judge the quality of LED transparent display

Led transparent display screen sales in full swing, and led transparent screen manufacturers from a few years to now everywhere.

How to judge the quality of LED transparent screen? Some people say that the quality of LED transparent display can be roughly judged by the appearance. is that true?

Nowadays, transparent LED panels produced by many manufacturers are similar in appearance and structure. The principle is the same, circuit boards, beads, wires, stb.

How can we find a good transparent LED display with our eyes?

Here is a brief introduction:

Brightness comparison

Stick the acrylic board on the same number of modules, and then slowly lift a small distance to see whether the brightness of the beads can meet their own requirements. természetesen, it’s more direct to put modules directly in words. The higher the brightness, the higher the requirements for the lamp beads, the higher the cost requirements. Pure indoor environment can adopt low brightness, but if it is window led transparent screen or LED glass curtain wall screen, high brightness LED transparent screen is required.

Is the light uniform

When observing the brightness, we should pay attention to the uniformity of the beads. When looking at white light, be sure to pay attention to whether there is color difference (this is very important) – if you cover it with thin white paper, you may not see it, so you need to use a certain thickness of acrylic acid. Colorimetric aberration is an important part of quality identification and one of the main reasons for the price difference of LED transparent screen

Wire identification

High quality wire, through UL certification, these through the LED transparent screen manufacturer’s manual is unreliable, so the most direct way is to pull out the skin, count the number of cores inside! For modules with 15, 17, 19 core wires or even 20 core wires and 30 core wires, the module will not be worse than that of 14 és 11 core wires, and vice versa.

Bulb temperature

After lighting for a period of time, touch the LED bead with your hand. The temperature is very high and certainly not as stable as the low temperature.

Solder joint quality

The full solder joints prove that the welding process is good, and the high brightness proves that the soldering tin is used well; the serious problem is the false soldering, which is easy to cause poor contact, and the follow-up maintenance is troublesome.

Led transparent screen light pasting mode

Jelenleg, there are two ways to make transparent LED screen, one is positive light, the other is side light. Although the permeability of side light is relatively high, the lamp bead packaging technology needs to be tested in the market, and the lamp bead with positive light emission is the lamp bead of traditional LED display screen, and the quality is stable after market inspection.