Polarization controller, projector system, polarization control method and image control method

A projector system comprising:

• a projector adapted to output respective projection lights for a right-eye image and a left-eye image;
• and
• a polarization controller including a liquid crystal device adapted to change polarization directions of the projection lights, and a controller adapted to control the liquid crystal device so that the respective projection lights for the right-eye image and the left-eye image have different polarization directions,
• wherein the controller performs control for mirror-reversing the polarization directions of the projection lights in the liquid crystal device according to a control signal indicating that the projector performs mirror reversal of the right-eye image and the left-eye image, input from the projector.

A projector system comprising:

• a first projector adapted to output a projection light for a right-eye image;
• a second projector adapted to output a projection light for a left-eye image;
• a first polarization controller that is provided corresponding to the first projector and includes a first liquid crystal device adapted to polarize a polarization direction of the projection light for the right-eye image and a first controller adapted to control the first liquid crystal device;
• and
• a second polarization controller that is provided corresponding to the second projector and includes a second liquid crystal device adapted to polarize a polarization direction of the projection light for the left-eye image and a second controller adapted to control the second liquid crystal device so that the polarization direction of the projection light for the left-eye image becomes a polarization direction different from the polarization direction of the right-eye image,
• wherein the first controller performs control for mirror-reversing the polarization direction of the projection light in the first liquid crystal device according to a control signal indicating that the first projector performs mirror reversal of the right-eye image, input from the first projector, and the second controller performs control for mirror-reversing the polarization direction of the projection light in the second liquid crystal device according to a control signal indicating that the second projector performs mirror reversal of the left-eye image, input from the second projector.

A polarization control method of outputting respective projection lights for a right-eye image and a left-eye image that are incident from a projector to a screen in different polarization directions, the method comprising:

• changing the polarization directions of the projection lights, with a liquid crystal device;
• and
• controlling the liquid crystal device so that the respective projection lights for the right-eye image and the left-eye image have different polarization directions, with a controller,
• wherein the controller performs control for mirror-reversing the polarization directions of the projection lights in the liquid crystal device in association with a mirror reversal process of the images in the projector according to a control signal indicating whether the projector performs mirror reversal of the right-eye image and the left-eye image, input from the projector.

A projector system comprising:

• a first projector adapted to output a projection light for any one of a right-eye image and a left-eye image;
• a second projector adapted to output a projection light for an image that is not projected by the first projector, among the right-eye image and the left-eye image;
• a first polarization controller that is provided corresponding to the first projector and polarizes a polarization direction of the projection light from the first projector into a first polarization direction;
• and
• a second polarization controller that is provided corresponding to the second projector and polarizes a polarization direction of the projection light from the second projector into a second polarization direction different from the first polarization direction,
• wherein control is performed so that the image projected from the first projector is changed from one of the right-eye image and the left-eye image into the other thereof and the image projected from the second projector is changed from the other of the right-eye image and the left-eye image into the one thereof according to a control signal indicating whether to perform mirror-reversal.