Clear vision function files are sharper and clearer. Clear vision image processing engine makes blurred low resolution images and words sharper and clearer; There are three treatment methods: low, medium and high to meet different use needs Rich interfaces connect more HDMI HD, D-sub and other interfaces, and can connect a variety of devices. Both the education industry and business office will become more efficient and convenient Green environmental protection, energy conservation and emission reduction LED backlight technology provides low power consumption, low calorific value and high utilization experience