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What is the common cathode cold screen technology?

1. Sub-power technology

  Red, green and blue (R, GB) use 2.8V (30A) + 3.8V (40A) dual output power supply.

Power supply principle:

The working voltage of the red lamp bead is 1.8-2.2V, and the blue and green lamp bead

The working voltage is 2.8-3.4V.

Click to view related products: Outdoor energy-saving LED display

2、common cathode IC technology

3、 Low temperature

               Conventional screen                                                 Common cathode screen

5、Temperature rise test/lamp surface temperature (CNAS test report)

6、Temperature rise test/pipe temperature (CNAS test report)

7、Temperature rise test/PCB temperature (CNAS test report)

8、 Power consumption test (CNAS test report/China Energy Conservation Certification)

Analysis of the results: The common cathode improves the power factor to achieve the purpose of increasing the active power, and uses low voltage (2.8V+3.8V) power supply in the lamp bead power supply to reduce the reactive power of the LED display in use. So as to achieve energy saving of 50%-60%.

9、Color decay test/color temperature comparison (CNAS test report)

SUMMARY

Cold screen technology, the temperature is reduced by 40% compared with the conventional, effectively control the temperature rise, and the screen operation is more stable;

Low power consumption, real energy saving, power saving about 50%-60%, high-efficiency and energy-saving drive IC, reducing circuit drive loss and lower operating costs;

The cold light source has high brightness, which better meets the high reliability requirements of outdoor applications;

Low heat, no need for air conditioning, zero noise, more energy-saving, and extend the life of the display;

The heat of the screen is uniform, the color temperature is constant, and the colorless block is used for a long time.