Non-planar computational displays

    公开(公告)号:US10659771B2

    公开(公告)日:2020-05-19

    申请号:US15952508

    申请日:2018-04-13

    Applicant: Google LLC

    Abstract: A near-eye display system includes one or more non-planar display panels and a lenslet array to display a near-eye lightfield frame. The near-eye display system further includes a rendering component to render, based on a stereoscopic focus volume associated with a set of display geometry data of the one-or more non-planar display panels, the array of elemental images in the near-eye lightfield frame such that objects within the stereoscopic focus volume are perceived to be in focus by the user's eye. A method of operation of the near-eye display system includes receiving display geometry data for one or more non-planar display panels of the near-eye display system and rendering, based on a stereoscopic focus volume, an array of elemental images at a position within a near-eye lightfield frame such that the non-planar display panels presents objects within the stereoscopic focus volume to be in focus.

    Near-eye display with extended effective eyebox via eye tracking

    公开(公告)号:US10546518B2

    公开(公告)日:2020-01-28

    申请号:US15595147

    申请日:2017-05-15

    Applicant: GOOGLE LLC

    Abstract: A near-eye display system includes a display panel to display a near-eye lightfield frame comprising an array of elemental images and an eye tracking component to track a pose of a user's eye. The system further includes a rendering component to position the array of elemental images within the near-eye lightfield frame based on the pose of the user's eye. A method of operation of the near-eye display system includes determining, using the eye tracking component, a first pose of the user's eye and determining a shift vector for an array of elemental images forming a near-eye lightfield frame based on the first pose of the user's eye. The method further includes rendering the array of elemental images at a position within the near-eye lightfield frame that is based on the shift vector.

    NEAR-EYE DISPLAY HAVING LENSLET ARRAY WITH REDUCED OFF-AXIS OPTICAL ABERRATIONS

    公开(公告)号:US20190129166A1

    公开(公告)日:2019-05-02

    申请号:US15832012

    申请日:2017-12-05

    Applicant: Google LLC

    Abstract: A near-eye display system includes a display panel to display a lightfield image comprising an array of elemental images and a lenslet array facing the display panel, the lenslet array comprising lenslets with spatially-varying prescriptions, such as different diameters, different focal lengths, and different asphere terms. The lenslet array further may be formed with a planar or non-planar substrate. The system further may include a distortion map comprising a set of transform matrices, each transform matrix configured to pre-distort a corresponding elemental image of a lightfield image so as to compensate for distortion expected to be introduced by a corresponding lenslet of the lenslet array, as well as a rendering component configured to modify the array of elemental images of a rendered lightfield using the distortion map to generate a modified lightfield image, and provide the modified lightfield image for display at the display panel for viewing via the lenslet array.

    Beam steering optics for virtual reality systems

    公开(公告)号:US11181801B2

    公开(公告)日:2021-11-23

    申请号:US15889796

    申请日:2018-02-06

    Applicant: Google LLC

    Abstract: A near-eye display system includes a display panel to present image frames to the eyes of a user for viewing. The system also includes a beam steering assembly facing the display panel that is configurable to displace a light beam incident on the beam steering assembly, thereby laterally shifting light relative to an optical path of the light beam incident on the beam steering assembly. A method of operation of the near-eye display system includes configuring the beam steering assembly in a first configuration state so that the beam steering assembly displaces a light beam incident on the beam steering assembly, such that the displaced light beam is laterally shifted relative to an optical path of the light beam.

    Near-eye display having lenslet array with reduced off-axis optical aberrations

    公开(公告)号:US10678049B2

    公开(公告)日:2020-06-09

    申请号:US15832012

    申请日:2017-12-05

    Applicant: Google LLC

    Abstract: A near-eye display system includes a display panel to display a lightfield image comprising an array of elemental images and a lenslet array facing the display panel, the lenslet array comprising lenslets with spatially-varying prescriptions, such as different diameters, different focal lengths, and different asphere terms. The lenslet array further may be formed with a planar or non-planar substrate. The system further may include a distortion map comprising a set of transform matrices, each transform matrix configured to pre-distort a corresponding elemental image of a lightfield image so as to compensate for distortion expected to be introduced by a corresponding lenslet of the lenslet array, as well as a rendering component configured to modify the array of elemental images of a rendered lightfield using the distortion map to generate a modified lightfield image, and provide the modified lightfield image for display at the display panel for viewing via the lenslet array.

    VIEWING-ANGLE-DEPENDENT COLOR/BRIGHTNESS CORRECTION FOR DISPLAY SYSTEM

    公开(公告)号:US20220319453A1

    公开(公告)日:2022-10-06

    申请号:US17639406

    申请日:2019-12-12

    Applicant: GOOGLE LLC

    Abstract: A display system including a tracking subsystem configured to track one of a pose of a head of a viewer or a pose of an eye of the viewer. The display system further includes an image correction module configured to, for each pixel of at least a subset of pixels of an input image, determine a pixel view angle for the pixel based on the pose of the head or the pose of the eye, determine a corrected pixel value based on an input pixel value of the pixel in the input image and based on the pixel view angle; and provide the corrected pixel value for the pixel in an angle-corrected image corresponding to the input image. The display system further includes a display panel to display the angle-corrected image.

    Near-eye display with extended accommodation range adjustment

    公开(公告)号:US10855977B2

    公开(公告)日:2020-12-01

    申请号:US15897633

    申请日:2018-02-15

    Applicant: Google LLC

    Abstract: A near-eye display system includes a display panel to display a near-eye lightfield frame comprising an array of elemental images and an eye tracking component to track a pose of a user's eye. The system further includes a lenslet array and a rendering component to adjust the focal points of the array of elemental images in the integral lightfield frame based on the pose of the user's eye. A method of operation of the near-eye display system includes determining, using an eye tracking component of the near-eye display system, a first pose of a user's eye and determining a desired focal point for an array of elemental images forming an integral lightfield frame based on the first pose of the user's eye. The method further includes changing the focal length of light projecting out of a lenslet array based on the first pose of the user's eye.

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