Patent ID: 8344882

Claim:
A display device connected to a computer host for displaying a graphical user interface of the computer host, the display device comprising: a bezel; a display panel framed by the bezel; a dial mounted on the bezel, and comprising a first end coupled to a power supply, a second grounded end, and an output; and an alarm setting member comprising an analog-digital (A/D) converter coupled to the output of the dial, a recognition module, a storage module, and an analysis module, wherein a voltage varies to a set voltage in accordance with rotation of the dial, the A/D converter converts a set voltage from an analog form into a digital form and transmits the converted voltage to the recognition module; when the recognition module recognizes an increased voltage output from the dial, an alarm time is correspondingly increased by the recognition module, and when the recognition module recognizes a decreased voltage output the alarm time will be correspondingly decreased; the storage module stores the adjusted alarm time; the analysis module compares a current time with a preset alarm time and outputting a drive signal to a warning unit in the event of a match.