Patent ID: 9124817
Filing Date: 2015-09-01
Classification: G03B,H04N

Abstract:
1. A projector configured to display an image by projecting light modulated by a light modulation element onto a projection surface, the projector comprising: a shift unit configured to move a projection position of the image by changing a position to be used to display the image in the light modulation element; a black adjustment unit configured to make luminance of black in a non-overlapping region, in which an image projected by the projector and an image projected by another projector do not overlap on the projection surface, higher than that in an overlapping region, in which the image projected by the projector and the image projected by the other projector overlap on the projection surface, in such a way as to uniform the luminance of black between the non-overlapping region and the overlapping region; and a control unit configured to move a boundary position in the image between a region in which the luminance of black is adjusted by the black adjustment unit and a region in which the luminance of black is not adjusted by the black adjustment unit, by an amount of movement in which the projection position is moved by the shift unit, wherein the shift unit is configured to move the projection position of the image by changing a timing of superimposition of a video signal supplied to the light modulation element with respect to vertical and horizontal display periods of the light modulation element.