Patent ID: 8573780
Filing Date: 2013-11-05
Classification: H04N

Abstract:
1. A projection-type display apparatus comprising: a display unit having a first effective area, which is the largest usable area for a display; and a geometric distortion corrector configured to correct a geometric distortion by performing, for an input image that is superimposed onto an image of a second effective area, which is set in and smaller than the first effective area and is a virtual effective area whose geometric distortion has not yet been corrected, enlargement processing so that a third effective area, which is a post-correction virtual effective area, has a portion located in an area between the first effective area and the second effective area, and the second effective area is enlarged, if the third effective area is entirely contained in the first effective area, and by further performing reduction processing, if the third effective area has a portion that is located outside the first effective area, to reduce the third effective area so that the third effective area is entirely contained in the first effective area.