PROJECTION IMAGE DISPLAY POSITION CONTROL DEVICE, PROJECTION IMAGE DISPLAY CONTROL METHOD, AND PROJECTION SYSTEM

摘要

PROBLEM TO BE SOLVED: To reduce the movable area of a display position control mechanism and to enable proper display position control even in image processing, when the display position of a projection image is controlled by simultaneously using the display position control mechanism and image processing.

SOLUTION: A display position control device for projection image which controls the display position of the projection image displayed on a projection surface (screen SCR) includes: a display position adjustment control unit 11 which divides display position shift amount from a display target position of the projection image on the screen SCR into a value an integer number times a pixel pitch of the projection image and a value smaller than the pixel pitch; a display position control processing unit 12 which performs display position control through image processing based on the value the integer number times the pixel pitch; and a display position control mechanism 13 which performs optical display position control based on the value smaller than the pixel pitch.

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