Patent ID: 6734846
Filing Date: 2004-05-11
Classification: H04N

Abstract:
A display device with automatic image correction functionality comprising:a display screen; a display circuit for translating an image frame signal transmitted from a host computer into an image frame and displaying the image frame on the display screen, the image frame signal comprising a plurality of vertical synchronizing signals, a plurality of horizontal synchronizing signals, and a plurality of image signals; an image correction circuit for automatically performing corrections to the image displayed on the display screen depending on a screen frame signal transmitted from the host computer; a timing pulse generator electrically connected to the image correction circuit, the timing pulse generator generating a sampling timing pulse; and a switch circuit comprising: a switch electrically positioned between the timing pulse generator and the image correction circuit, the switch controlling the transmission of the sampling timing pulse from the timing pulse generator to the image correction circuit; and a key electrically connected to the switch for controlling the state of the switch; wherein when the key is pressed, the switch is activated to permit the sampling timing pulse from the timing pulse generator to transmit to the image correction circuit, and the image correction circuit will perform an automatic image correction to the image frame displayed on the display screen depending on the screen frame signals transmitted from the host computer.