LED electronic screen procurement errors
Time:2018-12-08
Views:921
One, life span 100,000 hours
The technical data issued by the LED electronic display screen manufacturer indicate that the life of the LED illuminator is 10,000 hours under the ideal state. The ideal state refers to the time from luminescence to complete non-luminescence of the LED illuminator under the condition of constant pressure and current in the laboratory, 10,000 hours is equivalent to 11 years.
The amount of water in a barrel is determined by the lowest wood board. LED advertising displays currently use devices of civilian grade with a service life of no more than 8 years.As 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 valuable for use.A car can run for 15 years and be scrapped if left idle for 3 years.The environment and method of use have great influence on the life of the product.
Ii. Abide by national standards
The general specification of LED display screen was issued by the ministry in 1995.16, so far there are many companies claimed to conform to the national standard, in the scientific and technological development of eight years later to see the standard at that time, is not a standard.Generally do 640x480 standard resolution display for 7 square meters, each square meter for 43264 points, according to the national standard can have 90 points out of control.Who pays for such displays today?
The software is free
LED electronic display industry is a common problem of Chinese enterprises -- only production, not research and development.Only a few companies currently own legitimate software.It is illegal to use piracy now.
Low price
Look at the performance-price ratio, not just the price.
Fifth, gray level
As a dual base color and outdoor full color screen grayscale is an important indicator.At present, the market is full of many level 16 and 64 gray screen pretend to 256 gray level.The cost of control is only 1/5 of the 256 level gray level control.The easiest way to do this is to play a VCD on a more intense playground surface and see if you can see it clearly on the LED display.
Buy the best
All purchasing power comes from the need to meet the need and have a certain degree of advance.Blind pursuit will waste a lot of money to buy functions they do not need.
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