Video signal processing device and projection-type display device

摘要

A black stripe detector is configured to detect a black stripe region of an input video signal in which a part of an effective region is a black stripe region, and to generate black stripe information. A keystone correction processor is configured to implement keystone correction processing for the input video signal, and to generate a keystone-corrected video signal. A black stripe information corrector is configured to correct the black stripe information which indicates a corrected black stripe region owned by the keystone correction video signal, to corrected black stripe information based on keystone correction parameters when the keystone correction processor performs keystone correction processing for the input video signal. A video signal processor is configured to implement predetermined video signal processing for the keystone-corrected video signal by using the keystone-corrected video signal and the corrected black stripe information.

主权项

1. A video signal processing device comprising:
a black stripe detector configured to detect, a black stripe region of an input video signal in which a part of an effective region is a black stripe region, and to generate black stripe information indicating the black stripe region; a keystone correction processor configured to implement keystone correction processing for the input video signal so as to correct a trapezoidal distortion when the input video signal is projected onto a screen, and to generate a keystone-corrected video signal; a black stripe information corrector configured to correct the black stripe information to corrected black stripe information based on keystone correction parameters when the keystone correction processor performs keystone correction processing for the input video signal, the corrected black stripe information indicating a corrected black stripe region owned by the keystone correction video signal; and a video signal processor configured to implement predetermined video signal processing for the keystone-corrected video signal by using the keystone-corrected video signal and the corrected black stripe information.