Patent ID: 7800691
Filing Date: 2010-09-21
Classification: G09G

Abstract:
1. A video signal processing apparatus, comprising: a video signal storage unit operable to store an input video signal having a frame frequency and a number of tones; and a generating unit operable to generate a plurality of subframes from each frame of the input video signal to generate an output video signal having a frame frequency higher than the frame frequency of the input video signal and a number of tones less than the number of tones of the input video signal, wherein the pixel values of pixels corresponding to the plurality of subframes are set in accordance with the input video signal to represent halftones that are difficult to display with the number of the tones of the output video signal, and the pixel values of the pixels corresponding to the plurality of subframes are set to yield a maximum distribution of the pixel values in a time axis direction such that among the plurality of subframes corresponding to one frame of the input video signal, a respective subframe rising to a maximum pixel value displayable with the output video signal is set so as to shift from a first subframe to a last subframe in accordance with the pixel value of the input video signal.