Misunderstanding of LED display
LED display life 100,000 hours
The technical information issued by the LED material manufacturer shows that the life of the LED illuminant is 100,000 hours under the ideal state. The ideal state refers to the time when the LED illuminant changes from luminous to completely non-luminous under constant voltage and constant current in the laboratory, 100,000 hours An hour is equivalent to 11 years.
The LED display currently uses civilian-level devices with a service life of no more than 8 years. The function of the display screen is to watch. When the display screen is on and can only be seen clearly at night, it cannot be said that it is qualified and has use value.
A car can be driven for 15 years, and it will be scrapped if it is idle for 3 years. The environment and method of use have a great influence on the life of the product.
LED display complies with the national standard
The general specification for LED display is the ministerial standard issued in 1995. So far, there are still many companies claiming to meet the national standard. After 8 years of technological development, the standard at that time is no longer the standard. example. Generally, a display screen with a standard resolution of 640×480 is 7 square meters, and each square meter is 43264 points. According to the national standard, there can be 90 out-of-control points. Who will pay for such a display today.
LED display software is free
The common problem of Chinese companies in the display industry is that they only produce but do not research and develop. At present, only a few companies have genuine software. It is now illegal to use pirated copies.
LED display is cheap
It depends on the performance-price ratio rather than simply looking at the price.
gray scale
Grayscale as a dual primary color and full color display is an important indicator. At present, the market is flooded with many 16-level and 64-level grayscale displays pretending to be 256-level grayscale. Its control cost is only 1/5 of the control of 256 gray levels. The easiest way is to play a VCD with intense sports scenes to see if it can be seen clearly on the LED display.
buy the best
All purchasing power comes from needs, and needs to be met with a certain advance. Blind pursuit will waste a lot of money buying features that you don’t need.
