The reasons why outdoor advertising machines are prone to black screens are as follows:
1. Light problem: Outdoor advertising machines are usually exposed to the sun, and strong light will cause screen reflection, making the picture blurred or unable to display.
2. Heat dissipation: The outdoor environment temperature fluctuates greatly, especially in high temperature weather in summer, and the advertising machine is prone to black screen due to overheating, so it is necessary to design a reasonable heat dissipation channel to conduct heat out in time.
3. Vibration problem: Outdoor advertising machines are often subjected to external vibration, such as wind blowing, vehicles passing by, etc. These vibrations may lead to loose connections inside the advertising machine, which may lead to a black screen.
4. Power supply problem: Unstable power supply is also one of the common reasons for the black screen of outdoor advertising machine. Voltage fluctuation or power failure may cause the advertising machine to fail to work normally.
5. Hardware failure: The hardware equipment of outdoor advertising machine may also fail, such as screen damage and circuit board failure, which may lead to black screen.
In order to solve these problems, outdoor advertising machines usually take waterproof, dustproof, sunscreen and other measures, and also need regular maintenance and inspection to ensure their normal operation.
In order to avoid the problem of black screen in outdoor lcd advertising machine, the following measures can be taken:
1. Choose LCD screen with wide temperature screen OC: Wide temperature screen has better temperature resistance screen. Usually, the temperature resistance of OC can reach 105℃, while that of ordinary LCD screen can only reach about 60-80℃.
2. Use sunscreen glass: Using sunscreen glass on the screen of outdoor advertising machine can reduce the reflection of light and improve the visibility of the picture.
3. Maintain an appropriate temperature: pay attention to the heat dissipation of outdoor advertising machines, and adopt a well-designed shell for heat dissipation, and ensure good ventilation to avoid overheating leading to a black screen.
4. Add shockproof measures: provide stable support and fixing devices for outdoor advertising machines, so as to reduce the impact of external vibration on advertising machines and prevent loose connections from causing black screens.
5. Stable power supply: Ensure a stable power supply for outdoor advertising machines, and use voltage regulators or UPS to protect advertising machines from voltage fluctuations or power failures.
6. Regular maintenance and inspection: regularly maintain and inspect outdoor advertising machines, clean screens and internal components such as air-cooled cooling filters, ensure the normal operation of equipment, and find and repair potential problems in time.
The above measures can help to avoid the problem of black screen in outdoor lcd advertising machine, but it is still necessary to choose a suitable solution according to the specific situation.
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