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Jul 19,2021| LED Knowledge
With the development of science and technology, LED large-screen displays are widely used in entertainment and sports, financial securities, transportation stations, government agencies and enterprises with its unique advantages, and become the most common display media for information dissemination, news release, and advertising. The LED large-screen display system is the basic carrier of various information transmission, and is responsible for real-time information publishing tasks of news, news, culture and commerce. Deliver to the public in the first time with an eye-catching display effect. However, due to the difference in performance and the places used, the performance requirements of outdoor LED displays are higher than that of indoor LED displays. For this reason, indoor P3.91 full-color LED displays cannot be used outdoors. Next, the differences between them will be introduced:
Installation of outdoor LED display:
In order to protect the display from strong electromagnetic attacks caused by lightning strikes, the protective layer of the outer packaging of the screen display and LED display must be grounded, and the resistance of the grounding wire should be less than 3 ohms, so that the current generated by the lightning strike can be withdrawn from the ground in time.
The connection between the box and the box, the connection between the screen
and the stressed object should be seamlessly connected to avoid water leakage
and moisture. Inside the LED display, there must be good drainage and
ventilation measures. If there is water inside, it can be treated in
When selecting circuit chips, industrial-grade chips with operating temperatures of minus 40 degrees Celsius and 80 degrees Celsius must be selected to avoid the LED display from being unable to start due to excessively high or low temperatures.
When the LED display is energized and running, it will generate a certain amount of heat. If the heat is not discharged, if it accumulates to a certain extent, the internal ambient temperature will be too high, which will affect the operation of the integrated circuit and may cause burnout. At this time, the LED display does not work. Therefore, it is necessary to make ventilation and heat dissipation measures in the LED display body, and the internal ambient temperature is kept between minus 10 degrees and 40 degrees.
Choosing a high-brightness LED tube can show good results under direct sunlight, and it can also enhance the contrast with the surrounding environment, so that the audience's field of view is wider, farther, and wider.