BACKLIGHT FOR VIEWING THREE-DIMENSIONAL IMAGES FROM A DISPLAY FROM VARIABLE VIEWING ANGLES
First Claim
Patent Images
1. A display system that produces three-dimensional images, comprising:
- a waveguide;
a light source configured to inject light into the waveguide;
a switchable grating; and
a controller configured to spatially modulate the switchable grating so as to control where light exits the waveguide.
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Accused Products
Abstract
A display system produces three-dimensional images. The display system includes a waveguide, and a light source that injects light into the waveguide. A switchable grating allows individual positions in the grating in a two-dimensional array to be turned on and off. A controller configured to spatially modulate the switchable grating so as to control where light exits the waveguide. An eye tracking module tracks eye position of a viewer. The controller uses the eye position to control switching of the grating.
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Citations
20 Claims
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1. A display system that produces three-dimensional images, comprising:
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a waveguide; a light source configured to inject light into the waveguide; a switchable grating; and a controller configured to spatially modulate the switchable grating so as to control where light exits the waveguide. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for controlling a display system to produce three-dimensional images, the display system including a waveguide and a switchable grating, the method comprising:
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receiving image data to be displayed, the image data including data for left and right channels; controlling the switchable grating according to data to be displayed for each of the left and right channels. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A computer program product, comprising:
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a computer readable storage medium; computer program instructions stored on the computer readable storage medium which, when processed by a computer processor, instruct the computer processor to perform a process of controlling a display system to produce three-dimensional images, the display system including a waveguide and a switchable grating, the process comprising; receiving image data to be displayed, the image data including data for left and right channels; controlling the switchable grating according to data to be displayed for each of the left and right channels. - View Dependent Claims (19, 20)
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Specification