Aspect ratio 4: Method and device for processing vertical blanks generated when displaying images of various aspect ratios on three screens

摘要

1. TECHNICAL FIELD OF THE INVENTION;Aspect Ratio This technology displays the reverse of various aspect ratios on a 4: 3 screen.;2. The technical problem to be solved by the invention;Colors appearing in the vertical black blank area are removed by the interference of the additional information.;3. Summary of the Solution of the Invention;In the present invention, since the vertical blanks generated when displaying an aspect ratio 16: 9 image by using the black level of DC without using additional information as in the prior art are removed, the chromatic color mixed little by little with the vertical blank.;4. Important uses of the invention;Image signal processing system