Digital exhibition hall using LCD mosaic screen advantages: first, the exhibition hall space is limited, mosaic screen visual angle is large, can be left and right visitors can clearly see the screen before and after. Secondly, the mosaic screen has high resolution, beautiful picture, high contrast and clearer picture and text. Then, the splicing screen is super thin and lightweight and looks more stylish. Next, the number of stitches can be arbitrarily selected (row (m) *column (n)), and the screen size can also be varied to meet different display requirements. Finally, the operation is simple and powerful.