Head-up display with backlight device

The utility model discloses a head-up display with a backlight device, which relates to the technical field of head-up displays and comprises a backlight device body, a transverse plate is fixed at the bottom end of the backlight device body, a frame is rotatably mounted on the right side in the backlight device body, and a second servo motor is mounted at the top end of the frame. The output end of the second servo motor is fixedly connected with the top end of the lead screw. According to the cleaning device, the second servo motor, the lead screw, the cleaning frame, the connecting block and the cleaning cotton are arranged, the lead screw is connected with the cleaning cotton through the connecting block, the connecting block is in threaded connection with the lead screw, the top end of the lead screw is fixedly connected with the output end of the second servo motor, and the output end of the second servo motor drives the lead screw to rotate through operation of the second servo motor; at the moment, th