Patent classifications
G02B2027/0147
Systems and methods for multiplying the image resolution of a pixelated display
Systems integrating display resolution-multiplication solutions can be implemented in a variety of different ways. In many embodiments, the system includes an image projector for projecting image light, an image processor for computing a native image and at least one image shifted in a predefined direction, and at least one switchable grating capable of being switched between diffracting and non-diffracting states. In some embodiments, the switchable grating is optically coupled to the image projector. In a number of embodiments, the switchable gratings have a first configuration for propagating the native image light and at least one other configuration for propagating shifted image light having an angular displacement corresponding to the image shift in a predefined direction. By displaying the native and shifted images sequentially within a human eye integration period, the display resolution can be multiplied.
PIPELINE WITH PROCESSOR INCLUDING NEURAL NETWORK FOR RENDERING ARTIFICIAL REALITY
Disclosed herein are related to a system and a method for providing an artificial reality. In one aspect, a system includes a shared physical memory and a first processor having access to the shared physical memory. In one aspect, the first processor performs, during a first time period, a first rendering process to generate a first image frame of a first view of an artificial reality. In one aspect, the first processor performs, during a second time period, a second rendering process to generate a second image frame of a second view of the artificial reality. In one aspect, the system includes a second processor including a neural network and having access to the shared physical memory. In one aspect, the second processor performs, during a third time period overlapping a portion of the second time period, an image enhancing process on the first image frame.
Reprojection and wobulation at head-mounted display device
A head-mounted display device including one or more position sensors and a processor. The processor may receive a rendered image of a current frame. The processor may receive position data from the one or more position sensors and determine an updated device pose based on the position data. The processor may apply a first spatial correction to color information in pixels of the rendered image at least in part by reprojecting the rendered image based on the updated device pose. The head-mounted display device may further include a display configured to apply a second spatial correction to the color information in the pixels of the rendered image at least in part by applying wobulation to the reprojected rendered image to thereby generate a sequence of wobulated pixel subframes for the current frame. The display may display the current frame by displaying the sequence of wobulated pixel subframes.
Method and apparatus for colour imaging
A method for processing data for display on a screen involves encoding, using a first colour space, a first portion of image data intended to be displayed on a first area of the screen and encoding, using a second colour space, a second portion of image data intended to be displayed on a second area of the screen. The encoded first and second portions of the image data are compressed, and transmitted over a link for display on the screen. By using different colour spaces to encode image data that is displayed in different parts of a screen, differences in a users vision and/or aberrations caused by display equipment may be accounted for and so provide an improved user experience. Using different colour spaces for different screen areas may also reduce the amount of data that needs to be transmitted, for example by encoding image data more effectively and/or allowing more efficient compression of data.
Display apparatuses and methods incorporating pattern conversion
A display apparatus comprising: first light source(s) per eye, scanning mirror(s) per eye, pattern converting element per eye, and processor(s) configured to control first light source(s) to emit a light beam, whilst controlling scanning mirror(s) to draw subframe(s) of first image frame over pattern converting element, wherein subframe(s), when drawn, comprises plurality of light spots arranged in first pattern, wherein pattern converting element is employed to direct light beam incident thereon towards target surface, whilst converting first pattern of plurality of light spots into second pattern, thereby producing on target surface output image having spatially-variable resolution.
DISPLAY WITH FOVEATED OPTICAL CORRECTION
A display system (500) for displaying an image to an eye of a user includes a light-guide optical element (LOE) (506) and an image projector (512) projecting image illumination of a collimated image into the LOE. The image projector includes an electrically-controllable variable lens (10, 13, 71, 77, 58A, 58B, 59, 58C, 58D, 58E, 58F1, 58F2, 58G1, 58G2, 58H, 1223). A controller (18) determines a current region of interest of the image, either from tracking of the user's eye or by analysis of the image content, and controls the variable lens so as to reduce aberrations in the current region of interest at the expense of increased aberration in at least one area of the image outside the current region of interest.
CAMERA, HEAD-UP DISPLAY SYSTEM, AND MOVABLE OBJECT
A camera includes an image sensor, a signal processor, and an output unit. The image sensor obtains a first image being a subject image including an eye of a user of a head-up display. The signal processor generates a second image by reducing a resolution of an area of the first image other than an eyebox area. The eyebox area is an area within which a virtual image displayable by the head-up display is viewable by the eye of the user. The output unit outputs the second image to the head-up display.
Wide angle and high resolution tiled head-mounted display device
A tiled head-mounted display device, comprising: an optical component including a plurality of prisms with free-form surfaces, each prism being a wedge prism comprising a first optical surface, a second optical surface and a third optical surface; and a display component including a plurality of micro-displays, wherein the number of the micro-displays and the number of the prisms with free-form surfaces is identical. The tiled head-mounted display device according to the present invention is compact and light, provides wide field of view and high resolution, especially for the optical tiling head-mounted display device, the exit pupil planes of each display channels are coincident, thus avoiding pupil aberration and keeping exit pupil diameter and eye clearance same as the single ocular. There is no resolution variance throughout the entire field of view, thus preventing extra trapezoid distortion. The tiled head-mounted display device according to the present invention can be readily applicable to augmented environments applications by simply adding an auxiliary free-form lens behind the free-form prism.
Dual-mode augmented/virtual reality (AR/VR) near-eye wearable displays
A dual-mode augmented/virtual reality near-eye wearable display for use with a curved lens element. The lenses are provided with one or more transparent waveguide elements that are disposed within the thickness of the lenses. The waveguide elements are configured to couple display images directly from image sources such as emissive display imagers to an exit aperture or plurality of exit aperture sub-regions within a viewer's field of view. In a preferred embodiment, a plurality of image sources are disposed on the peripheral surface of the lenses whereby each image source has a dedicated input image aperture and exit aperture sub-region that are each “piecewise flat” and have matched areas and angles of divergence whereby a viewer is presented with the output of the plurality of image source images within the viewer's field of view.
Display device
A display device includes a display, an image beam shifter, and a light guiding component. The display generates an image beam. The image beam shifter receives the image beam and generates a projected image beam. The light guiding component receives the projected image beam to transport the projected image beam to different positions of a target zone in sequence. The image beam shifter projects the projected image beam to different positions of the light guiding component with time division.