In recent years, the market for LED displays has grown larger and wider. LED display manufacturers are also more and more, in addition to the well-known LED companies, there are also a lot of small manufacturers. Although the market is getting wider and wider, the competition is getting bigger and bigger. There are benign technical competitions and bad price wars. In order to survive, small new LED manufacturers will go to the market with low prices, and they can quickly open up the market and seize a group of customers. But in many cases, because of technology, quality problems lead to a series of accidents. Then the customer has to spend money to spend time on repairs, which is not worth the candle. So, LED display is not a short-term tool, it is not like a mobile phone, it can be changed every year. There are various cheap domestic mobile phones on the market. Although the quality of the technology is not as good as that of imported apples, the sales volume far exceeds that of Apple. It is because the mobile phone is a short-term tool for consumers, and it is quickly replaced. Need to buy a special goodbye. But the LED display is different, it takes a long time, 5 years, 8 years and 10 years. Therefore, the low price can never be an important factor for consumers to choose LED display . Good quality and durability are the real money to save customers.
Since LEDs and ICs are semiconductor devices, they are critical to the environmental conditions, preferably at room temperature of about 25 ° C , and have the best working mechanism. But in fact, a large outdoor screen will be used in different temperature environments, summer may be above 60 °C , winter may be below -20 °C . When the manufacturer produces the product, it is based on 25 °C as the test condition, and the different products are classified into different files. The actual operating conditions are 60 °C or -20 °C . At this time, the LED and IC work efficiency and performance are inconsistent, which may belong to the first gear. It will become a multi-file, the brightness will be inconsistent, and the screen will naturally change. This is because the red, green and blue lamps have different brightness attenuation and decrease under different temperature conditions. At 25 ° C , the white balance is normal, but at 60 ° C , three colors of LED The brightness is reduced, and the attenuation values ​​are inconsistent, so the brightness of the entire screen is reduced and the color cast is lost, and the quality of the entire screen is degraded. And it IC? IC's operating temperature range is -40 ℃ -85 ℃. Because the outside temperature is too high, the temperature inside the box rises. If the temperature inside the box exceeds 85 °C , the IC will work unstable due to excessive temperature, or the temperature drift will be different and the current between the channels or the difference between the sheets will be too large. Lead to the flower screen.
Therefore, I think that the heat dissipation is the key to the long-term operation of the LED display to ensure that its life expectancy is reached. The R&D and production of the front maintenance aluminum module is a brand new cooling artifact, super heat dissipation, high temperature resistance, radiation resistance and oxidation resistance. Effectively ensure the normal operation of the LED display .
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