Knowledge of led panel selection:
First: according to the module beads to choose
The material selection and packaging technology level of LED panel beads are particularly important, which directly determines the quality of LED panel products. In addition, due to the different materials at present, the expansion coefficient of LED element plate lamp bead is different from that of the external environment, which can easily cause the gold wire connection to be broken. However, the result will lead to dead lights and flashing lights. Therefore, the lamp bead of LED element plate module is especially critical.
Second: select according to the PCB board of the module
The technical requirements of LED module for PCB board are much higher than other parts. And now stable performance LED module PCB board is generally composed of substrate and metal coating and integrated circuit. However, in the application process, the external environment affects the quality of the module PC board there are many links, such as: the size of the through-hole, coating thickness and substrate material and other factors. Therefore, the user should consider the PCB application environment of the module when selecting the LED unit board.
Third: refer to the module suite
LED panel module kit is the core structure of the exterior panel module, which can protect the lamp beads, the panel and the key elements of splicing the whole screen. While the LED unit panel kit mainly includes mask, bottom shell, positioning hole and installation screw, etc. However, the LED unit panel kit must be able to prevent moisture, water and uv, and the quality of the kit affects the flatness, contrast and service life of the display screen.
Not only that, the pouring adhesive of LED unit module is also a very important link that affects the performance of the display module. The adhesion degree, corrosiveness, uv resistance, non-aging and strong tightness of the pouring glue can all affect the application performance of LED unit module. It can be seen that users should pay attention to the above selection method in the process of purchasing reliable LED panel.