Patent ID: 6069671
Filing Date: 2000-05-30
Classification: H04N

Abstract:
A video signal processing apparatus for use in a two-panel liquid crystal projector comprising:a preprocessor for receiving primary color video signals and for generating a first luminance signal having only a high frequency component and a first plurality of color signals in which said high frequency component is removed;a matrix circuit for receiving the first luminance signal and the first plurality of color signals, for generating a second luminance signal using said first luminance signal and a minimum one of the first plurality of color signals, and for generating a second plurality of color signals using the minimum one of the first plurality of color signals as a reference signal, wherein each of said second plurality of color signals is generated by subtracting the reference signal from a respective first color signal; andmeans for receiving and processing the second luminance signal and the second plurality of color signals so as to be used by a luminance signal liquid crystal panel and a color signal liquid crystal panel, respectively.