Rotary switch

The utility model relates to a knob switch which comprises a base, a circuit board, an encoder, a touch switch button, a knob assembly, a pressing assembly, a screen, a light guide seat and a light blocking seat, the circuit board is arranged on the base, the encoder is arranged on the circuit board, and the encoder is electrically connected with the circuit board. The touch switch key is arrangedon the circuit board corresponding to the central position of the encoder, and the touch switch key is electrically connected with the circuit board; a user can control equipment connected with the circuit board to do corresponding actions by rotating the knob, meanwhile, the circuit board outputs a signal to the screen, the user can see the content of the screen by observing the display area ofthe screen, the user can control the equipment connected with the circuit board to do corresponding actions by pressing the surface cover, and the LED lamp beads are turned on, so that the user experience is improved. Light ge