How to prevent and control the light pollution on the display screen of LED advertising machine

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, in the application of daily advertising machine, how to prevent LED advertising machine display light pollution?

1. Selection and design of playing content

LED large screen is the public media, there are public welfare, advertising, instruction and so on. When selecting the content to be played, we must reach an agreement with the public to avoid the psychology of refusal. This is also an important aspect of the prevention and control of screen light pollution. To do this, we can start from the following points:

1. Set reasonable content, such as the combination of commercial advertising and public welfare.

2. Control the playback time. One of the more effective ways to control light pollution is to control the time of play.

3. Select the appropriate geographical location and reasonably plan the display area. The viewing distance and viewing Angle and display area have an experience planning, and the image research has specific design requirements on the viewing distance and viewing Angle of the display screen. In the design of the display screen should meet the design requirements as far as possible, reasonable planning.

Ii. LED advertising machine display manufacturing enterprise: improve technical level and improve "light pollution"

Generally speaking, the brightness of sunlight is 2000CD. When the brightness of sunlight exceeds twice that of the sun, that is, 4000CD, the human eye can see clearly. Outdoor LED advertising machine display brightness standard is 5000CD, and outdoor display brightness over 5000CD will be defined as light pollution. So keep the brightness Settings in mind.

1. Adopt the brightness adjustment system that can be automatically adjusted by the system. We know the night, the different time and place of the brightness of the environment changes greatly, if brightness LED display screen of broadcast advertising machine is greater than the environment brightness is sixty percent, we can clearly feel the eyes, that is to say, caused the pollution to the light of men. Through the outdoor brightness acquisition system, the ambient brightness is collected at any time, and the display control system automatically converts the broadcast brightness suitable for the environment by receiving the system data.

2. Multistage grayscale correction technology. The display system of ordinary LED advertising machine adopts 8bit color display level, which makes the color stiff in some low grayscale and color transition, and also causes color light unsuitability. New type of LED large screen control system USES the color of 14 bit show level, greatly improve the colour on the excessive hardness, that make people feel when watching the color soft, avoid discomfort about light.