Projector, image display system, and method of controlling projector
AssigneeSeiko Epson Corporation
InventorShinji Kubota
Life of this patent
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Abstract
An image display system includes a first projector and a second projector, and makes the first projector and the second projector operate in cooperation with each other to form a single projection image on a common screen. The first projector and the second projector are connected to each other via a signal line. A master control section of the first projector transmits a control signal to a subordinate control section of the second projector. The subordinate control section of the second projector controls a projection section of the second projector based on the control signal. Thus, the controllability of the image display system provided with a plurality of projectors is enhanced.
Claims7
A projector comprising:
- an image projector that displays a projection image, which is to be combined with a projection image of another projector, by projection on a projection surface;
- a controller that controls the image projector, and is adapted to transmit a control signal to the other projector for controlling projection of the other projector;
- an image capturer that captures the projection surface on which the projection image of the other projector is displayed, and generates a captured image;
- and
- an image corrector that corrects an image to be projected by the image projector based on the captured image,
- wherein the controller is adapted to:
- (i) transmit a control signal adapted to command projection of a reference image to the other projector,
- (ii) make the image capturer obtain the captured image including a taken image of the reference image, and
- (iii) make the image corrector perform the correction based on the captured image.
An image display system comprising:
- a first projector, including:
- a first image projector that displays a projection image by projection onto a common projection surface;
- a master controller that controls the first image projector;
- an image capturer that captures the common projection surface and generates a captured image;
- and
- an image corrector that corrects an image to be projected by the first image projector based on the captured image;
- and
- a second projector, including:
- a second image projector that displays a second projection image on the common projection surface which is to be combined with the projection image projected by the first projector, based on an image signal;
- and
- a subordinate controller that controls the second image projector,
- wherein the master controller transmits a control signal to the second projector for controlling the projection of the second projector, and
- the subordinate controller receives the control signal from the first projector, controls the second image projector based on the control signal, and makes the second image projector project a reference image in response to receiving the control signal, and
- the master controller makes the image capturer take an image of the common projection surface on which the reference image is projected, and makes the image corrector perform the correction based on the captured image.
Dependencies are inferred from the claim text.