ED display screens have been widely used in various street corners of the city and have become a unique symbol that enhances the image of the city. However, while the LED display is beautifying the image of the city, the strong light on the screen also has a certain negative impact on the nightlife of urban residents. Although the LED industry is a "light-making" industry, the display "light-producing" is understandable, but judging from the city's environmental pollution indicators, it has become a new type of pollution-"light pollution." Therefore, LED display manufacturers should pay attention to the problem of "light pollution" during production, and control the brightness settings.

1. Automatically adjust the brightness

LED display manufacturers use an adjustment system that can automatically adjust the brightness during production. According to the day and night, in different places and time periods, slight changes in the brightness of the LED display will have a great impact. If the playback brightness of the LED display is greater than 50% of the ambient brightness, we will feel uncomfortable with our eyes and cause "light pollution".

We can collect the environmental brightness at any time through the outdoor brightness collection system, use the LED display control system to receive system data, and automatically convert it to the brightness suitable for the environment through software to broadcast the picture.

2. Multi-level grayscale correction technology

Ordinary LED display systems use 18-bit color display levels, so in some cases of low grayscale and excessive color, the color will appear very blunt, so it will cause the color light to be unsuitable. The new LED large-screen control system uses a 14-bit color display level, which greatly improves the hardness of the excessive color, makes people feel the color soft when watching, and avoids people's discomfort to light.

In terms of power consumption, although the luminescent material used in the LED display itself is energy-saving, if it is used in some larger areas. Due to long-term use, the overall power consumption is still relatively large. Under the influence of these comprehensive factors, the power consumption of LED displays is very alarming. Therefore, LED display manufacturers can save energy through the following points:

1. Using high-efficiency LEDs, light-emitting chips do not cut corners;

2. Use high-efficiency switching power supply to improve power conversion efficiency;

3. Good heat dissipation design of the screen body reduces the power consumption of the fan;

4. Design a scientific overall circuit plan to reduce the power consumption of internal circuits;

5. According to the changes of the external environment, the brightness of the outdoor LED display is automatically adjusted to achieve the effect of energy saving and emission reduction.