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The LED display of purchasing some pitfalls

发表时间：2008-10-28  点击次数：2273  [打印]

A, LED life   LED by the materials manufacturers technical data show that LED lights for the life ideal condition 1 O hours. Ideal refers to the laboratory zhongheng pressure constant current state LED lights glow from the light of time to complete. 1 O hours or in 11 years.   A barrel of water and how much is the board decided by the lowest, the LED display current use of inferior to other devices for the people using life no more than eight years. As the function of the display screen is watching, when the display screen on only night when we see what it is that is can't qualified, have use value.   A car can drive 15 years, if idle 3 years is scrapped. Using the environment and method to the life of the product's influence.   Second, abide by national standard   The LED display general specification for 1995 years is the first-class standard. Many companies are still claims to meet the national standards, the development of science and technology in the eight years later to see the standards, at that time is not standard. For example out of control points, gb for three over ten thousand to phi 3.75 indoor double colors display screen for example. Generally do 640 x480 resolution screen for standard 7 square meters, each square meters for 43264 points, according to the national standard can have 90 out of control points. This screen in today who will pay the bill.   Three, all free software   Display industry generally have the common problems of China's enterprise--only production not development. Only a few enterprises have the original software. Now use piracy is illegal.   Four, the cost performance To see the performance to price. To see performance to price rather than just see the price.   Five, the gray   As a double colors and full color displays of gray is an important target. Now the market is flooded with many 1 level 6 and level 64 gray screen pretending to be level 256 gray. The control cost only 256 level of control of 1/5. Gray The simplest approach is to play a more intense stadium VCD check the LED display on whether can see clearly. Six, buy the best Want to buy the best purchasing power, all will come from need. Meet the needs and have certain in advance. Blind pursue will waste a lot of money to buy you don't need the function.   Seven, practical Application is fundamental, as of the application of consultation, the hardware and software upgrade of the maintenance, the maintenance and repair without the support of the manufacturer.