How to judge the quality of transparent LED display

How to judge the quality of transparent LED display screen, even in places where there are few transparent LED display screen manufacturers? Some people say that the quality of the cabinet can be roughly judged by its appearance. Is that really the case? At present, many LED display enterprises produce transparent LED display panel

How to judge the quality of transparent LED display screen, even in places where there are few transparent LED display screen manufacturers? Some people say that the quality of the cabinet can be roughly judged by its appearance. Is that really the case? At present, the transparent LED display panel produced by many LED display enterprises, even if the appearance is different, its structural principle is circuit board, lamps, wires and so on. How to judge the advantages and disadvantages of transparent LED display? Let me start with the following article.
1. Brightness comparison, the acrylic board close to the same number of LED modules, and then slowly lift a small distance, here to confirm whether the brightness of the lamp beads can meet their own requirements. Of course, if the module is directly put into the text, it will be more direct. The higher the brightness is, the higher the requirements for lamp beads are, and the cost is relatively high. Low brightness can be used in pure indoor environment, but if it is a window transparent LED display or LED glass curtain wall screen, it needs to highlight the LED transparent screen.
2. Look at the brightness, observe whether the light of the lamp column is uniform, whether there is color difference in white light (this is very important) – cover it with a thin white paper, which may not be observed, so cover it with a certain thickness of acrylic acid. Whether there is color difference in brightness is an important part to distinguish the quality, and it is also one of the main reasons for the price difference of LED transparent screen.
3. Wire identification, high quality wire, UL certification. Through the LED transparent screen manufacturers are not necessarily reliable, so the most direct way is to open the shell, calculate the number of stalls inside! 15, 17, 19 core or even 20, 30 core modules should not be inferior to 14, 11 core modules, and vice versa.
4. Lamp column temperature, turn on the lamp for a period of time, touch the LED lamp bead with your hand. The temperature is very high, even getting hot. It’s true that the temperature is low and the stability is not good.
5. Solder joint quality, solder joint full proof welding process, using high brightness proof welding tin; The serious problem is virtual welding, which is prone to poor contact, and the subsequent maintenance is very troublesome.
6. Transparent LED display sticker way: at present, there are two ways to make transparent LED display. One is positive and one is photometric. The Photometric Transmittance is high, but the lamp post packaging technology needs market verification, and the lamp post of concentrate adopts the lamp post of traditional LED display screen. After market inspection, the quality is very stable.