BUILDING A SUPPLY BASE FOR LED DISPLAY
Self encapsulation / patch application / Suite production / strength manufacturers
Fujian Quanzhou (Nan) Optoelectronic Information Industry Park, No. 7-8 plant
What are the problems to be considered in the design and installation of LED outdoor screen?
The main problems of LED outdoor display are as follows:
(1) the display screen is installed in the open air, often exposed to the sun and rain, and the dust is covered by wind. If the electronic equipment is wetted or seriously affected by moisture, it will cause short circuit or even fire, cause failure and even fire, and cause losses.
(2) the screen may be subjected to strong lightning and strong magnetic attack caused by lightning.
(3) the temperature of the environment changed greatly. When the screen is working, it will produce a certain amount of heat. If the temperature is too high and the heat dissipation is bad, the integrated circuit may not work normally, or even be burned down, so that the display system can not work properly.
(4) the audience is wide, the sight distance is far away, the field of vision is extensive, and the environment light changes greatly, especially the direct sunlight.
In view of the above special requirements, outdoor display must be:
(1) the interface between the screen and the screen and the building must be strictly waterproof and leakproof; the screen should have good drainage measures, once the accumulated water can be discharged smoothly.
(2) installing lightning arresters on display panels and buildings. The main body and the enclosure of the display screen are well grounded, and the earthing resistance is less than 3 ohms, so that the large current caused by lightning can be released in time.
(3) install ventilation equipment to cool down, so that the temperature inside the screen is between -10 and 40 degrees. Axial fan is installed above the screen to discharge heat.
(4) choose the industrial IC chip with working temperature between -40 and 80 C to prevent the temperature from being too low in winter.
(5) in order to ensure long distance visibility under strong ambient light, ultra high brightness LED must be selected.
(6) the display medium adopts a new wide viewing tube, wide viewing angle, pure color, consistent coordination and longer life span of 100 thousand hours. The external packaging of the display medium is the most popular square tube, silicone seal, and non metal assembly. Its exterior is exquisite, beautiful, durable, and has five anti - sunlight, dustproof, waterproof, high temperature resistance and circuit short circuit.