Projection image display position control device, projection...

Details Projection image display position control device, projection... Projection image display position control device, projection...

2008-10-15

2011-11-29

Ko, Tony (Department: 2878)

Optics: image projectors

Distortion compensation

For projection axis inclined to screen

C353S069000

Reexamination Certificate

active

08066386

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

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