Patent ID: 7090352

Claim:
A projector type display apparatus for applying light from a light source to a picture display device and projecting outgoing light from said picture display device onto a screen in an enlarged manner comprising: a video processor which generates a display picture information; a camera interface which takes in a captured image captured by a camera and outputs as captured image information; an image size controller which outputs an area determined as a projected image as a displayed area extraction image; an image comparator which generates disagreement information at least in a part of a person area by comparing the image information of said displayed area extraction image with the information of projected combined image; a difference area generator which generates differential area information based on said disagreement information; a mask image generator which generates masked image information based on said differential area information; and an image signal combining unit which superposes said masked image information on said displayed image information and outputs the displayed image information as a newly projected combined image information.