Display drive system of liquid crystal screen and flexible circuit board thereof

The utility model discloses a display drive system of a liquid crystal screen and a flexible circuit board thereof. The system comprises a host chip board, a flexible circuit board and a liquid crystal screen, wherein the input end of the flexible circuit board is connected with the host chip board by a miniLVDS (Low Voltage Differential Signaling) interface for data transmission; the output end of the flexible circuit board is connected to an integrated circuit inside the liquid crystal screen by two integrated FPC (Flexible Printed Circuit) wiring interfaces; and a gamma circuit is arranged in the flexible circuit board. In the display drive system of the liquid crystal screen, the flexible circuit board with the miniLVDS interface is used, so that the layout of the whole functional circuit is more reasonable, a circuit board on the back of the liquid crystal screen is omitted and the thicknesses of connecting ports and products can be reduced. In addition, the utility model can reduce the manufacturing cost more greatly and the electromagnetic interference on the products more effectively. The liquid crystal screen is further away from a heating power source on the back, which is beneficial to prolonging the service life.