How to detect P2.5LED display quality is good or bad?
We all know that the P2.5 LED display is an important part of the LED cell board, if the cell board has a problem, it will directly affect the P2.5 display screen quality! So, how to identify the LED cell board is good or bad LED display Screen manufacturers concerned about the problem, the following organize some of the common methods to detect the quality of LED display.
1. P2.5LED display panel
Some P2.5 display manufacturers use low-cost flame-retardant paperboard or single-sided fiberboard as the LED circuit board for low-price competition. Because all fiberglass PCB board is expensive. The difference cannot be seen at the beginning. Under normal circumstances, it will break due to moisture, UV damage, oxidation, etc. in one year, resulting in the scrapping of the entire LED cell board. High-quality LED displays must use double-sided glass fiber PCB boards, which are cost-effective but guaranteed.
2. IC devices
Observe the consistency of the brand of IC device used. What type of IC, and how many ICs are used, are also enough to affect the quality of P2.5 LED display. Some LED display manufacturers, in order to save costs, will deliberately reduce the number of ICs when manufacturing cell boards, or intermingle with other brands of ICs
3. Lamp beads and chips:
The naked eye can't tell whether the lamp is good or bad. Can only rely on long-term tests, that is, experts say aging test. The general full-color LED display manufacturer's approach is: power before leaving the factory, check whether the LED display can work normally, it will not go through a long time aging test. Because there are time costs and labor costs.
