... uneven problem. 5 , the "three" technology to ensure the printed circuit board 20 years without corrosion. 6 , a modular ... . 8 , can play the static, dynamic pictures and video images, to meet the requirements of live broadcast. 9 , the ... and the picture editor. 18 ,system environment, adaptable, with moisture, corrosion, flame, dust, high temperature, anti-static, anti-rat Full Color LED Display