A backlight source driven method, a backlight source driven circuit, and a backlight source driven device. The driven method comprises: a first driving signal processing step, a second driving signal processing step, and a backlight source driven step. The driven circuit comprises a backlight drive module. The backlight drive module comprises a first processing module, a second processing module, and a driving control module. The first processing module comprises a first signal decoding module, a first register module, and a first conversion module, and the second processing module comprises a second signal decoding module, a second register module, a second conversion module, and a third conversion module. The driven device comprises the circuit. A backlight source driven strategy is optimized, a backlight source driven circuit is greatly simplified, the space occupied by a backlight source driven board can be greatly reduced, the backlight source driven cost is lower, the reliability is higher, and many problems existing in the existing backlight source driven solution are thoroughly solved.
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