2. Install lightning protection devices on display screens and buildings. The main body and shell of the LED display should be well grounded, and the ground resistance should be less than 3 ohms, so that large currents caused by lightning can be discharged in a timely manner;

3. Install ventilation equipment to cool down the screen so that the internal temperature of the screen is between -10°C and 40°C. An axial flow fan is installed above and behind the screen to discharge heat;

4. Use industrial-grade integrated circuit chips with operating temperatures between -40°C and 80°C to prevent the display from being unable to start due to low temperatures in winter. ;

5. In order to ensure long-distance visibility under strong ambient light, ultra-high brightness light-emitting diodes must be used;

6. The display medium uses a new type of wide-viewing tube, which has a wide viewing angle, pure colors, consistent coordination, and a lifespan of more than 100,000 hours. The outer packaging of the display medium is the most popular square cylinder with a shielded edge, silicone seal, and no metal assembly; its appearance is exquisite and beautiful, sturdy and durable, and has the characteristics of protection against direct sunlight, dust, water, high temperature and circuit short circuit. "Five defenses" features.

The above are the precautions for all aspects of purchasing LED displays. The editor has summarized the above knowledge on purchasing display screens in order to facilitate customers to have a clear understanding when purchasing LED displays, so that they can be well informed when purchasing.