Car LED display screens use LED technology, GSM / GPRS technology, low temperature technology, anti-static technology, anti-interference technology, in-vehicle electronic technology, etc. to display information products on mobile cars. Because it is based on the mobile bus as a medium, it can be widely circulated in many places, bringing great advertising promotion effect, and is widely accepted, it is different from the ordinary LED display installed in a fixed place. The reason lies in vehicle and advertising.
Car LED display features:
1) High stability and reliability
The car is moving all the time, and there will be some weak pulling power every time the brake is turned. Therefore, the automotive LED display has high requirements for the stability and reliability of electronic products.
2) Stable power system support
The car's power supply is powered by batteries. Similarly, when the car starts, brakes, or stops, it will cause transient power supply voltage instability. If the power supply system is not good, the display screen will be burned.
3) Wide operating temperature range
In the north, cars are generally placed outdoors. The temperature in winter may reach -40 ° C, and the temperature in summer may reach 60 ° C, which requires the power supply and display components to work at a wide temperature.
4) Good anti-static measures
Cars are prone to static electricity during operation, especially in autumn when the electrostatic high voltage can reach thousands of volts. Without good anti-static measures, electric sparks can easily damage ICs and LED lights.
5) Proper brightness
Appropriate brightness, if the brightness of the LED display is not enough, it will not be visible during the day, and the meaning of installing the display is lost; if it is too bright, it will affect driving.
6) LED brightness attenuation
This is a common characteristic of LED products. LED attenuation characteristics, LED brightness is attenuating, with a 10-70% attenuation rate during a year, and the half-year brightness of poor quality is reduced by half, making it impossible to see the display content clearly.
7) Good promotion
Transports such as buses can be said to cover all corners of the city, so its advertising effect can also affect the entire city, thus bringing great publicity effects to products and services.
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