LED display has experienced a steady period of development - the climax - the trough - maturity of these five processes, those first-tier cities in the installation of LED display is also more and more advanced, more and more installation and application And more, while the two types of cities and three types of cities is still only a preliminary infiltration, the current installation of led display to the second and third tier cities, second and third tier cities will become the main LED display growth. It can be seen, second and third tier cities in the market development, is the main direction of LED products.
Outdoor market will be a relatively large growth in second and third tier cities, outdoor LED display is mainly used for outdoor advertising media, it must be required to work in different climates. So, customers in the purchase of LED display time to pay attention to what the problem?
First, the main outdoor screen problems are as follows: Display installed outdoors, often exposed rain, wind and dust cover, poor working environment. Wet or severely damp electronic devices can cause short circuits and even fire, triggering a fire or even a fire, resulting in a loss.
Second, the display may be affected by lightning strong electric magnetic attack.
Third, the environment temperature changes greatly. Display work itself will have a certain amount of heat, if the ambient temperature is too high and bad heat dissipation, the integrated circuit may not work properly, or even be burned, so that the display system does not work.
Fourth, the audience wide, distance requirements far, wide field of vision; changes in ambient light, in particular, may be exposed to direct sunlight.
For the above special requirements, outdoor display must be done:
(1) install ventilation cooling, the screen body temperature between -10 ℃ -40 ℃. Behind the screen body installed axial fan, discharge heat.
(2) The selection of industrial temperature -40 ℃ -80 ℃ industrial grade integrated circuit chips, to prevent the winter temperature is too low to make the display can not be started.
(3) Install the lightning protection device on the display screen and the building. Main body and shell of the display are well grounded. The grounding resistance is less than 3 ohms, so that the large current caused by lightning can be discharged in time.
(4) The screen body and the combination of the screen body and the building must be strictly waterproof and leakproof. The screen body should have good drainage measures, and once the stagnant water occurs, it can be discharged smoothly.
(5) In order to ensure long-distance visibility in the case of strong environment, we must use ultra-high brightness light-emitting diode.
(6) display medium selection of new wide viewing angle tube, wide viewing angle, pure color, consistent coordination, life expectancy more than 100,000 hours. The outer package of the display media is the most popular square cylinder with occlusion at the moment, sealed with silicone and without metal assembly.
After the above treatment, outdoor LED display in addition to its exquisite appearance, durability, but also have direct sunlight, dustproof, waterproof, anti-high temperature, short circuit "five anti" feature.
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