Manual LCD turning machine is mainly applied to various schools, trainingclassrooms, audio-visual classroom, trading hall, advanced multimedia network system, office furniture places, the turnover is generally applicable to 19-22 inches below the liquid crystal display, when open the turning device of liquid crystal display screen automatically flipped when a 105-108 degree angle (special requirements can also be designed) at the same time, the keyboard willautomatically rise and flush with the desktop, when not in use, the screen canautomatically turn over to hide desktop interior, product with anti-theft, dust to keep the desktop is smooth, beautification of the desktop and other functions.