The invention relates to a
mobile phone with a heat-dissipated secondary screen. The
mobile phone with the heat-dissipated secondary screen comprises a screen, a framework and a backboard, wherein a heat dissipation layer is arranged on the backboard, a secondary screen cavity is embedded to the heat dissipation layer, a front end of the secondary screen cavity is closely attached to the backboard, a rear end of the secondary screen cavity is sealed and fixed by an electromagnetic
chip, a liquid guide layer is arranged in the secondary screen cavity, two ends of the liquid guide layer communicate with two ends of the heat dissipation layer by one-way valves to form a closed liquid ring, the liquid guide layer comprises two
layers of elastic films, permanent-magnetic dot matrixes are arranged on the liquid guide layer at equal distances, electromagnetic posts are arranged on the electromagnetic
chip and are in right one-to-one correspondence to the positions of the permanent-magnetic dot matrixes, the electromagnetic
chip is electrically connected with a control chip of the
mobile phone, the control chip is electrically connected with a
control switch, the
control switch is arranged at a side edge of the mobile phone, and the backboard and the elastic film are in transparent colors. The mobile phone is simple in structure and is convenient to use, the standby time can be effectively prolonged, meanwhile, the heat dissipation speed of the mobile phone can be increased, and the service lifetime of the mobile phone is prolonged.