Patent ID: 8089238

Claim:
An electronic device, comprising: a host; a monitor comprising a first rotating shaft rotatably connected to the host and comprising a first toothed portion; a stepper motor disposed in the host and comprising a second rotating shaft comprising a second toothed portion engaging the first toothed portion; a fine-tuning control circuit board electrically connected to the stepper motor; a first fine-tuning key electrically connected to the fine-tuning control circuit board, wherein, when the first fine-tuning key is operated, the fine-tuning control circuit board drives the second rotating shaft to rotate, forcing the monitor to rotate with respect to the host in a first direction; and a second fine-tuning key electrically connected to the fine-tuning control circuit board, wherein, when the second fine-tuning key is operated, the fine-tuning control circuit board drives the second rotating shaft to rotate, forcing the monitor to rotate with respect to the host in a second direction.