Image display apparatus having automatic adjusting function and method thereof

Abstract

An image display apparatus having an automatic adjusting function and a method thereof The image display apparatus includes an analog-to-digital (AD) converter for converting analog image signals received from a host computer into digital image data, a phase-locked loop (PLL) circuit for providing the AD converter with synchronization signals needed for converting the analog image signals into the digital image data, and a scaler for calculating a Horizontal Active Width from the digital image data, comparing the calculated Horizontal Active Width with the default Horizontal Active Width corresponding to the default mode, and transferring compensation data to the PLL circuit to compensate for the difference in the Horizontal Active Width. Accordingly, the image display apparatus is automatically adjusted according to the input image mode, thereby displaying high quality images on a screen.

Dependencies are inferred from the claim text.