If the led screen is damaged by hard objects or scratched, then the led screen will almost need to be replaced with a new one. Therefore, we must be careful not to let hard objects hurt the screen of the LED display. The led screen is a special precision instrument. Once there is any problem, try not to disassemble and repair it by yourself. Otherwise, it is very likely to cause danger to yourself. The working voltage of the LED screen is generally within 20V, but there is also a great danger of instantaneous internal high voltage. Observe the flatness of the surface of the LED screen. Generally, the flatness of the surface of the high-quality LED screen is specified at about 1 mm. The flatness can well ensure the display effect of the LED screen and the normal playback of the image, reducing image distortion, local unevenness and projection dead angle. phenomenon occurs. If you want to choose a cost-effective LED screen that you like, don’t focus on the price, but pay more attention to the quality, performance, parameters and other factors of the LED screen. According to the color base color, it can be divided into: single base color display screen: single color (red or green). Dual primary color display: red and green dual primary colors, 256 gray levels, can display 65536 colors. Full-color display: Red, green, blue three primary colors, 256-level gray-scale full-color display can display more than 16 million colors. Shenzhen United Huiye Technology is a comprehensive high-tech enterprise mainly engaged in the research and development, production, sales and service of LED screen related products. Manufacturing" as the benchmark concept, excellent construction quality, reasonable market price and perfect after-sales service, won the trust of the vast market and customers. .