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US 10,241,328 B2Granted
Near-to-eye display device with variable resolution
AssigneeCY Vision Inc.
InventorsHakan Urey, Erdem Ulusoy
Life of this patent
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Abstract
A near-to-eye display device includes a spatial light modulator and a microdisplay. The spatial light modulator provides a high-resolution focused image for central vision. The microdisplay provides a low-resolution defocused image for peripheral vision. The display has a large field of view.
Claims24
A near-to-eye display device comprising:
- a computer unit;
- a point light source mounted to the near-to-eye display device;
- a spatial light modulator (SLM) mounted to the near-to-eye display device and operatively coupled to the computer unit, wherein the near-to-eye display device when in use is less than 25 cm from a user's eye, wherein light produced by the point light source illuminates the SLM and gets modulated by the SLM to produce modulated light, and the modulated light is directed on an exit pupil plane that includes a useful portion, and wherein a light wave distribution within the useful portion includes a computed light distribution from a virtual scene computed by the computer unit;
- and
- a microdisplay positioned on the near-to-eye display device to generate on a user's retina a defocused peripheral image that surrounds a focused image generated by the spatial light modulator, wherein the focused region is steerable to different locations on the microdisplay.
2 more elements
A near-to-eye display device comprising:
- a spatial light modulator configured to modulate light and to generate color pixels;
- a microdisplay positioned on the near-to-eye display device to generate on a user's retina a peripheral image that surrounds an image generated by the spatial light modulator;
- a pupil-tracking device to track a user's pupil position;
- and
- a driver circuit operatively coupled to the spatial light modulator and to the microdisplay, and responsive to the pupil-tracking device to cause the spatial light modulator to modulate reflected light in a central region of the user's gaze and to cause the microdisplay to display pixels away from the central region of the user's gaze, wherein the near-to-eye display device when in use is less than 25 cm from the user's eye.
2 more elements
A method comprising:
- providing a near-to-eye display device that includes a spatial light modulator (SLM) mounted to the near-to-eye display device and a microdisplay mounted to the near-to-eye display device, wherein the near-to-eye display device is less than 25 cm from a user's eye when in use;
- modulating light with the SLM;
- generating a focused image that includes the SLM-modulated light;
- generating a defocused peripheral image with the microdisplay;
- and
- steering the focused region to different locations on the microdisplay.
3 more elements
Dependencies are inferred from the claim text.