First, the life of 100,000 hours
The technical data issued by the LED material manufacturer indicates that the life of the LED illuminator is 100,000 hours under ideal conditions. The ideal state refers to the time from the illuminating to the complete illuminating of the LED illuminator in the constant voltage and constant current state in the laboratory, and 100,000 hours is equivalent to 11 years.
The amount of water in a wooden barrel is determined by the lowest board. The LED display currently uses civilian-grade devices and has a service life of less than 8 years. The function of the display screen is to watch. When the display is lit only when it is clear at night, it cannot be said that it is qualified and valuable.
A car can be opened for 15 years, and if it is idle for 3 years, it will be scrapped. The environment and method of use have a significant impact on the life of the product.
Second, comply with the national standard
The general specification for LED displays is the 1995 ministerial standard. Many companies have so far claimed to be in line with national standards. It is no longer a standard to look at the standards at the time after 8 years of technological development. For example, the out-of-control point, the national standard is three-thousandths, taking the φ3.75 indoor dual-primary display as an example. Generally, the display with 640x480 standard resolution is 7 square meters, 43264 points per square meter, and there are 90 out of control points according to the national standard. Who is paying for such a display today?
Third, the software is free
The display industry is ubiquitous with the common problems of Chinese companies - only production is not developed. Currently only a few companies have genuine software. It is illegal to use piracy now.
Fourth, the price is low
It depends on the performance price ratio rather than simply looking at the price.
Five, gray level
Grayscale as a dual primary and full color display is an important indicator. The current market is flooded with 16-level and 64-level grayscale displays that pretend to be 256 shades of gray. Its control cost is only 1/5 of the control of 256 levels of gray. The easiest way is to play a VCD of a more intense sports scene to see if it can be seen clearly on the LED display.
Sixth, to buy the best
All purchasing power comes from needs, meets needs and has a certain lead. Blind pursuits will waste a lot of money to buy features that you don't need.
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