Viewing glasses, 3D display system and image beam adjustment method thereof
First Claim
1. A pair of glasses for viewing three-dimensional (3D) image content, comprising a glasses frame and two lenses, at least one of the two lenses comprising a polarizer and a polarization conversion unit in front of the polarizer, wherein the polarization conversion unit is adapted to adjust a polarization direction of an incoming image beam to a polarization direction that is either parallel or perpendicular to a polarization axis direction of the polarizer, wherein said polarization conversion unit comprises a first liquid crystal layer and a second liquid crystal layer, wherein a magnitude of an operating voltage supplied to said first liquid crystal layer controls an extent of adjustment of the polarization direction of the incoming image beam, and wherein said second liquid crystal layer is disposed between the first liquid crystal layer and the polarizer and is adapted to maintain the polarization direction of the incoming image beam passing through the first liquid crystal layer or to convert the polarization direction of the incoming image beam passing through the first liquid crystal layer to a perpendicular polarization direction.
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Accused Products
Abstract
A pair of viewing glasses, a three-dimensional (3D) display system and an image beam adjustment method are provided. The adjustment method includes determining an adjustment angle according to an image beam emitted by a display screen; detecting a relative spatial orientation of the viewing glasses and the display screen; determining a compensation angle according to the relative spatial orientation; and adjusting the polarization direction of the image beam according to at least one of the adjustment angle and the compensation angle, so as to change the polarization direction of the image beam to a target polarization direction parallel or perpendicular to the polarization axis direction of a polarizer of the viewing glasses.
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Citations
25 Claims
- 1. A pair of glasses for viewing three-dimensional (3D) image content, comprising a glasses frame and two lenses, at least one of the two lenses comprising a polarizer and a polarization conversion unit in front of the polarizer, wherein the polarization conversion unit is adapted to adjust a polarization direction of an incoming image beam to a polarization direction that is either parallel or perpendicular to a polarization axis direction of the polarizer, wherein said polarization conversion unit comprises a first liquid crystal layer and a second liquid crystal layer, wherein a magnitude of an operating voltage supplied to said first liquid crystal layer controls an extent of adjustment of the polarization direction of the incoming image beam, and wherein said second liquid crystal layer is disposed between the first liquid crystal layer and the polarizer and is adapted to maintain the polarization direction of the incoming image beam passing through the first liquid crystal layer or to convert the polarization direction of the incoming image beam passing through the first liquid crystal layer to a perpendicular polarization direction.
- 11. In combination, a pair of glasses for viewing three-dimensional (3D) image content, and a display device for displaying 3D image content, the pair of glasses comprising a glasses frame and two lenses, at least one of the two lenses comprising a polarizer and a polarization conversion unit in front of the polarizer, wherein the polarization conversion unit is adapted to adjust a polarization direction of an incoming image beam from said display device to a polarization direction that is either parallel or perpendicular to a polarization axis direction of the polarizer, wherein said polarization conversion unit comprises a first liquid crystal layer and a second liquid crystal layer, wherein a magnitude of an operating voltage supplied to said first liquid crystal layer controls an extent of adjustment of the polarization direction of the incoming image beam, and wherein said second liquid crystal layer is disposed between the first liquid crystal layer and the polarizer and is adapted to maintain the polarization direction of the incoming image beam passing through the first liquid crystal layer or to convert the polarization direction of the incoming image beam passing through the first liquid crystal layer to a perpendicular polarization direction.
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23. A method for adjusting an image beam of a three-dimensional (3D) display device, comprising determining an adjustment angle needed to cause a polarization direction of the image beam emitted by the display device to be either parallel or perpendicular to a polarization axis direction of a polarizer in a pair of 3D glasses being used to view the display device;
- detecting a relative spatial orientation of the pair of 3D glasses to the display device based upon at least one of position and tilt of the pair of 3D glasses;
generating a compensation signal to correct the polarization direction of the image beam emitted by the display device in accordance with the compensation signal; and
actuating a polarization converter in the pair of 3D glasses to adjust the polarization of the image beam emitted by the display device based upon both the adjustment angle and a compensation angle indicated by the compensation signal to be either parallel or perpendicular to the polarization axis direction of the polarizer of the pair of 3D glasses being used to view the display device. - View Dependent Claims (24, 25)
- detecting a relative spatial orientation of the pair of 3D glasses to the display device based upon at least one of position and tilt of the pair of 3D glasses;
Specification