The more the type of LED screen, according to the use of the environment can be divided into indoor and outdoor screen screen two. Indoor and outdoor LED screen, LED screen varies widely. First, the brightness, indoor screen brightness light-emitting less than the outdoor screen a few times to 10 times; the indoor outdoor screen on the TV just like on the outside as not enough light. As a result, outdoor screen to be used ultra-high brightness LED, and in order to further improve the brightness and may increase the distance between pixels in a package with often more than ultra-high brightness LED. Second, the outdoor Xu Fang-ping (rain) water, anti-direct sunlight, dust-proof, anti-high-temperature, wind, lightning prevention, and so on, and the indoor screen is not required to consider these issues.
At present, the outdoor screen main problems are as follows:

1. Installed on the outdoor screen, often weather, wind and dust cover, bad working conditions. Electronic equipment was wet or damp serious cause of the fire even short-circuit caused the fire or even failure, resulting in the loss.

2. Screen may be caused by lightning strong magnetic power attack.

3. Ambient temperature changes significantly. Screen when the work itself, it is necessary to have a certain amount of heat, if the ambient temperature is too high heat and bad, integrated circuits may not work properly, or even destroyed, so that the display system can not function properly.

4. Wide audience, far from line-of-sight requirements, wide field of vision requirements. Changes in ambient light, in particular, may be subject to direct sunlight.

Solutions and application requirements:

1. Screen-and-screen combination with the construction of the Department must be strictly leak-proof water-proof. Ping-good drainage, stagnant water in the event of a successful emissions.

2. And building on the screen to install lightning protection devices. Shell and the main screen to maintain a good grounding, grounding resistance is less than 3 ohms, so that the lightning caused by the large current discharge in a timely manner.

3. Installation of ventilation cooling, so that the internal body temperature in the screen -10 ℃ ~ 40 ℃ between. -Screen installed behind the top of the axial flow fan, exhaust heat.

4. Temperature in the selection of -40 ℃ ~ 80 ℃ between the industrial level integrated circuit chip to prevent the severe winter the temperature is too low so that the screen can not start.

5. In order to ensure the environment in the light of the strong long-range video, to be selected ultra-high-brightness light-emitting diodes.

6. Show that the new wide selection of media control perspective, broad perspective, pure color, consistent coordination, life expectancy more than 100,000 hours. Shows that foreign media package for the most popular along with over a square cylinder, seal silica gel, metal-free assembly. Its sophisticated appearance beautiful, durable, with anti-direct sunlight, dust-proof, waterproof, anti-high-temperature, anti-short circuit, and other characteristics of the industry was known as the Anti-five.