Abstract: The present invention relates to a display base which can adjust the angle of the display, especially the angle of a touch screen liquid crystal display of a cash register. The display base mainly comprises an upper body, a lower body and moving apparatus. The upper body is used for mounting a display screen; one side of the upper body is of an arcuate shape. The lower body is used for mounting a calculator device; one side of the lower body is also of an arcuate shape for being connected with the upper body. The moving apparatus is mounted in the upper body, and comprises a motor which can rotate to drive a worm, a worm wheel and a gear engaged with a tooth hole provided on the lower body in order to move the upper body upward and downward to achieve the function of angle adjustment, and the angle displacement of the screen caused by the pressing of the screen will not occur.