Method and system for near-eye three dimensional display
AssigneeThe Board of Trustees of the University of Illinoi
InventorsLiang Gao, WEI CUI
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Abstract
A 3D near eye display device is provided, the display device comprising a display screen for displaying more than one 2D images, at least one focusing element for collimating the images to sub-images, a spatial multiplexing unit capable of remapping the sub-images to different depths while forcing their centers to align to form remapped sub-images, and an eye piece. The device and methods allow for a high quality, compact 3D display system that can be wearable and overcomes the vergence-accomodation conflict that leads to visual discomfort and fatigue caused by traditional 3D near eye display devices.
Claims20
A three dimensional (3D) near eye display device comprising:
- a display screen that displays a plurality of two dimensional (2D) images;
- a focusing element that collimates the plurality of 2D images;
- a spatial multiplexing unit (SMU) that remaps the plurality of 2D images to different depths while forcing centers of the plurality of 2D images to align;
- and
- an eye piece.
A method comprising:
- displaying, by a display screen of a wearable device, a plurality of two dimensional (2D) images;
- collimating, by a focusing element of the wearable device, the plurality of 2D images;
- modifying, by a spatial multiplexing unit (SMU) of the wearable device, a phase of incident light by adding quadratic and linear phase terms to an incident wave front of the 2D images resulting in multiplane images;
- and
- reimaging, by an eye piece of the wearable device, the multiplane images onto a viewer's retina.
A three dimensional (3D) near eye display device comprising:
- a display screen comprising first and second panels that display two dimensional (2D) images;
- a beam splitter having first and second surfaces that align with the first and second panels, respectively, wherein the beam splitter combines light emanating from the first and second panels of the display screen;
- an actuator that laterally slides the beam splitter in a direction along the first panel of the display screen to adjust a gap between the second panel and the second surface of the beam splitter resulting in an optical path difference;
- a focusing element that projects the 2D images to different depth planes;
- and
- an eye piece.
Dependencies are inferred from the claim text.