▎ 摘　　要

NOVELTY - The utility model claims a magnetic graphene liquid crystal device, the device comprising a shell and a magnetic writing-and-painting pen shell window with painting and calligraphy, painting window is orderly provided with a first polarizing plate, a second polarizing plate, and a plane light source; the polarization angle between first polaroid sheet and second polaroid sheet is 90 degrees, one side of the first polarizing plate through glass cement bonding and second polaroid sheet, and has a cavity between the two; with graphene magnetic dispersion in the cavity, the shell is equipped with an electric source module; side wall of the shell has a first semi-circular metal fastener and second semi-circular metal fastener; two semicircular metal fastener, upper end contact, a power supply module connected with the first semicircular metal fastener; a second semi-circular metal fastener and plane light source; and the diameter of the annular structure is less than magnetic painting and calligraphy pen diameter, magnetic painting and calligraphy pen mounted between the two circular metal fasteners. The utility model has smart design, is capable of directly observing graphene liquid crystal.