The invention discloses a
liquid crystal screen heating module used for automatically heating a
liquid crystal screen in low-temperature environment and a
temperature control method. The module comprises a
liquid crystal screen module body, a liquid
crystal screen heating module body, a temperature detection circuit and a main control module body; the liquid
crystal screen module body is provided with an interface communicating with the main control module body, a temperature collecting sensor is arranged in the main control module body, and the heating
control signal output pins are arranged on the main control module body; a liquid
crystal screen heating circuit is connected with the heating
control signal output pins, and heating ends of the liquid crystal screen heating circuit are distributed on the back face of a liquid crystal screen in the form of heating resistors distributed uniformly. The temperature sensor and the heating control pins arranged in a control
chip cooperate with the heating circuit on the periphery to detect the low-temperature of the liquid crystal screen and heat the liquid crystal screen, the problem that the liquid crystal screen does not work normally in the low-temperature environment is solved, namely the liquid crystal screen heating module can work normally even in the environment at minus 50 DEG C.