Patent ID: 7176850

Claim:
A projection display apparatus that projects images onto a screen in response to given image data, comprising: an embellishment effect memory for storing embellishment effect data representing an embellishment effect image that can be used to embellish an arbitrary image; an image embellishment section that generates embellished image data by overlaying an original image represented by the given image data and the embellishment effect image; a light modulation unit that is driven in response to the embellished image data pixel by pixel; and an optical system for projecting onto the screen the embellished image obtained by the light modulation unit, wherein the image embellishment section comprises: a multiplier section that multiplies the image data and the embellishment effect data by respective coefficients on a pixel by pixel basis; and an adder section that adds the embellishment effect data and the image data multiplied by the multiplier section, on a pixel by pixel basis.