Patent ID: 9621861
Date: 2017-04-11
CPC Classifications: G03B,H04N

Claim:
1. A projection image display system which forms an image on a projection plane by using a plurality of images projected from a plurality of projection-type display apparatuses, wherein the plurality of projection-type display apparatuses comprise a first projection-type display apparatus which is assigned displaying of an image in a first assigned projection region on the projection plane, and a second projection-type display apparatus which is assigned displaying of an image in a second assigned projection region which partially overlaps the first assigned projection region, and the projection image display system comprises a first controller and a second controller, the first controller is configured to generate a guide figure and controls the first projection-type display apparatus to display the guide figure when a first projectable region does not contain the first assigned projection region, the first projectable region being a region on a projection plane, in which the first projection-type display apparatus can actually project an image, the second controller is configured to generates a reference figure and controls the second projection-type display apparatus to display the reference figure when a second projectable region contains the second assigned projection region, the second projectable region being a region on a projection plane, in which the second projection-type display apparatus can actually project an image, the guide figure is a figure to be referenced by a user for adjusting the position of the first projection-type display apparatus, and the reference figure is a figure to be referenced by the user, as a norm for the position adjustment, in combination with the guide figure.