Patent ID: 6504533
Filing Date: 2003-01-07
Classification: G09G

Abstract:
An image display apparatus, comprising:a characteristic detection means for detecting from an input image signal predetermined characteristics regarding the specification of the image signal including at least the number of vertical lines; a horizontal pixel number estimation means for multiplying said detected number of vertical lines with a predetermined constant to calculate an estimated value of the number of horizontal pixels; an A/D conversion means for successively sampling the signal of every horizontal period of said input image signal by a sampling cycle based on the above calculated estimated value of the number of the horizontal pixels and converting it into a digital image signal; a signal conversion means for converting said converted digital image signal to a display signal of a predetermined dot matrix type based on the configuration of a display means; and a display means of a dot matrix type for displaying the image based on the converted display signal; whereby said predetermined constant corresponds to an aspect ratio of said input image signal.