How to develop full-color LED display screen without light pollution and meter non electric energy has become an important product performance that consumers and enterprises must deal with.
LED display screen was once widely used in all street corners of the city and became a common symbol to improve the city image. However, while beautifying the city image, the strong light on the screen also had a certain negative impact on the night life of urban residents. LED industry is a “dimming” industry, and the screen “mountain light” is indisputable. However, from the urban environmental pollution dry forecast, it once became a new pollution type “light pollution”. Therefore, enterprises should pay attention to the problem of “light pollution” and control the brightness setting.
The first control method adopts an automatic brightness adjustment system.
Some changes in display brightness will have a great effect according to the difference between day and night, site environment and time zone. When the regenerative brightness of full-color LED display screen is greater than 50% of the ambient brightness, it will obviously feel uncomfortable to the eyes and form “light pollution”.
Then, through the outdoor brightness acquisition system, you can stop the ambient brightness acquisition at any time, apply the LED display control system to receive the system data, and automatically convert it to the brightness of the appropriate environment through software to stop broadcasting.
The second control method: multi-level gray correction technology.
The ordinary full-color LED display system uses an 18bit color display layer. Therefore, if the low gray level and color are excessive, the color will be rigid, resulting in the disharmony of color lights. The new LED large screen control system adopts the color display level of 14bit, which greatly improves the excessive color hardness, makes people feel the color mild when watching, and prevents the sense of warmth to the light.
In terms of power consumption, the luminous data used by the full-color LED display itself is energy-saving, but part of the display area needs to be applied to large places. If it is used for a long time, the total power consumption is still very large. Because the brightness required is relatively high. Under the action of these composite factors, the power consumption of the display is quite amazing. Then all the electricity bills borne by advertisers will increase exponentially. Therefore, enterprises can stop energy conservation through the following five points.
(1) High luminous efficiency LED can be used, and the light-emitting chip does not cut corners.
(2) The use of high-efficiency switching power supply greatly improves the power conversion efficiency.
(3) Stop excellent screen cooling design and reduce fan power consumption.
(4) Design the whole circuit plan scientifically to reduce the internal circuit power consumption.
(5) Automatically adjust the brightness of outdoor display screen according to the changes of external environment to achieve the effect of energy conservation and emission reduction.
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