How to prevent and control light pollution on LED advertising machine display screens

At present, LED advertising machine display screen light pollution is usually divided into three categories, namely white light pollution, artificial daylight pollution, and color light pollution. So, how can we prevent LED advertising machine display screen light pollution in daily advertising machine applications?

1、 In terms of selecting and designing playback content

LED screens are public media, including public welfare, advertising, and indicator categories. When selecting the content to be played, we must reach an agreement with the public's requirements and avoid a rejection mentality. This is also an important aspect of preventing light pollution on display screens. To achieve this, we can start with the following points:

1. Set reasonable content, such as combining commercial advertising with public welfare.

2. Control playback time. One effective way to deal with light pollution is to control the playback time period.

3. Choose a suitable geographical location and plan the display screen area reasonably. There is an empirical plan for viewing distance, viewing angle, and display area, while image research has specific design requirements for display screen viewing distance and viewing angle. When designing display screens, efforts should be made to meet design requirements and plan reasonably.

2、 LED advertising machine display screen manufacturing enterprises: improving technological level; Light pollution;

Generally speaking, the brightness of sunlight is 2000CD. When the brightness exceeds twice the brightness of sunlight, which is 4000CD, the human body is fully visible to the naked eye. The brightness standard for outdoor LED advertising machine displays is 5000CD, and when the brightness of outdoor displays exceeds 5000CD, it is defined as light pollution. So it's important to control the brightness setting.

1. Adopting a brightness adjustment system that can be automatically adjusted by the system. We know that the brightness of the environment varies greatly at different times and locations during the day and night. If the playback brightness of the LED advertising machine display screen is 60% higher than the ambient brightness, we will clearly feel uncomfortable in the eyes, which means it causes light pollution to people. Through the outdoor brightness collection system, the ambient brightness can be collected at any time. The display control system automatically converts the broadcast brightness suitable for the environment through software by receiving system data.

2. Multi level grayscale correction technology. The ordinary LED advertising machine display screen system adopts an 8-bit color display hierarchy, which can cause color stiffness in some low grayscale and color transitions, and also cause color light discomfort. The new LED large screen control system adopts a 14 bit color display hierarchy, greatly improving the hardness of colors in transition, making people feel soft colors when watching, and avoiding discomfort with light.