Màn hình LED, Cho dù trong sản xuất hay sử dụng, sẽ xuất hiện một loạt các thất bại, Kỹ sư hiển thị Rayling dựa trên nhiều năm kinh nghiệm, tóm tắt những lý do chính cho những thất bại này. Tôi tin rằng sau khi đọc bài viết này, Người đọc sẽ có sự hiểu biết toàn diện về các nguyên nhân của sự cố hiển thị LED.
Product quality is the LED display manufacturers need to strengthen and improve the place, should be from the source of control failure, improve the quality of the LED display.
LED display has become a part of people’s lives, street alleys, square stations, all kinds of different sizes and shapes of LED displays can be seen everywhere. It is a system engineering that combines optics, structural mechanics, electronics, and computer science.
According to statistics, more than 80% of LED display failure is caused by the following factors: AC power distribution wire bundles, terminals, connectors, signals and low voltage DC connection wire bundles and connectors, switching power modules, fans, plastic shell components. These interfaces, cables, power supplies, shells if not selected well, will lead to LED display overall or partial black screen, flower screen, mosaic, no signal, Vân vân. These are also very difficult to maintain problems, so we pay attention to reduce the failure rate in the production process.
80% of the remaining failures are due to the following reasons: welding points, capacitors, terminals, LEDs on the PCBA These reasons will cause the LED display to have blind lights or highlighted, one or more lines are not bright, lack of color, Vân vân., if the control card or software has problems, it will cause the image display is not normal. Outdoor display must be designed strictly according to the detection standards, không thấm nước, dustproof, wind-resistant, high temperature, otherwise it is easy to appear a variety of failures, even the entire LED display will be scrapped. Ngoài ra, the display operator should master the relevant basic knowledge, With good use habits, plus professional maintenance personnel, can also reduce the failure rate to a certain extent.