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公开(公告)号：US11435576B2
公开(公告)日：2022-09-06
申请号：US17081650
申请日：2020-10-27
申请人： Google LLC
发明人： John D. Perreault , Patrick Llull
IPC分类号： H04N9/47 , G02B27/00 , G02B27/01 , G02B30/27 , H04N13/128 , H04N13/305 , H04N13/383 , H04N13/344 , G02F1/29
摘要： 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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公开(公告)号：US11314083B2
公开(公告)日：2022-04-26
申请号：US16148489
申请日：2018-10-01
申请人： Google LLC
摘要： 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. The beam steering assembly includes a birefringent plate configurable to replicate a light ray incident on the beam steering assembly such that the replicated light ray is laterally shifted relative to an optical path of the light ray incident on the beam steering assembly.
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公开(公告)号：US20210076025A1
公开(公告)日：2021-03-11
申请号：US17081650
申请日：2020-10-27
申请人： Google LLC
发明人： John D. Perreault , Patrick Llull
IPC分类号： H04N13/383 , G02B27/00 , G02B27/01 , G02B30/26 , G02F1/29 , H04N13/128 , H04N13/305 , H04N13/344 , G02B30/27
摘要： 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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公开(公告)号：US10827164B2
公开(公告)日：2020-11-03
申请号：US16144025
申请日：2018-09-27
申请人： Google LLC
IPC分类号： H04N13/332 , H01L27/32 , H04N13/167 , G02B27/01
摘要： A head-mounted display (HMD) device includes one or more active shutters coupled to a synchronization module. The synchronization module includes a first photodiode configured to detect a synchronization signal for controlling operation of the one or more active shutters. The one or more active shutters are configured to alternate between an open state to pass light and a closed state to block light for reducing a duty cycle of a display screen of a mobile device positioned within the HMD device. The synchronization signal provides a timing to block light from the display screen for a display update duration corresponding to a subset of pixels of the display screen.
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公开(公告)号：US11067724B2
公开(公告)日：2021-07-20
申请号：US16258979
申请日：2019-01-28
申请人： Google LLC
发明人： John D. Perreault , Oscar Martinez
摘要： A near-eye display system includes a display panel to emit display light representative of a display image and a lens assembly disposed along an optical axis. The lens assembly includes a first phase mask plate having a first major surface facing the display and a second major surface opposite the first major surface, the second major surface implementing a first freeform Fresnel lens structure, and further includes a second phase mask plate adjacent and parallel to the first phase mask plate and having a third major surface facing the second major surface and an opposing fourth majors surface, the third major surface implementing a second freeform Fresnel lens structure. A pose of at least one of the first and second phase mask plates relative to the other is configured to be adjusted so as to adjust an optical power of the lens assembly.
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公开(公告)号：US10546518B2
公开(公告)日：2020-01-28
申请号：US15595147
申请日：2017-05-15
申请人： GOOGLE LLC
发明人： John D. Perreault , Patrick Llull
IPC分类号： G09G3/02 , H04N5/225 , G02B27/01 , H04N5/33 , G02B27/00 , G06F3/01 , G06T7/70 , G06T3/20 , G06T3/40 , G09G3/00 , H04N13/383 , H04N13/31 , G06T19/00
摘要： 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.
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公开(公告)号：US20190129166A1
公开(公告)日：2019-05-02
申请号：US15832012
申请日：2017-12-05
申请人： Google LLC
发明人： John D. Perreault , Patrick Llull
摘要： 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.
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公开(公告)号：US11973926B2
公开(公告)日：2024-04-30
申请号：US17767372
申请日：2021-03-02
申请人： GOOGLE LLC
发明人： John D. Perreault , Andrew Huibers
IPC分类号： H04N13/32 , H04N13/305 , H04N13/368 , H04N13/383
CPC分类号： H04N13/32 , H04N13/305 , H04N13/368 , H04N13/383
摘要： An autostereoscopic display system includes a transmissive display panel including a backlight having an array of backlight pixels, a selectively-selectively-transmissive display pixel matrix having a first side facing the backlight and an opposing second side, the selectively-transmissive display pixel matrix comprising an array of display pixels, a first lenticular array disposed between the backlight and the first side of the selectively-transmissive display pixel matrix, and a second lenticular array disposed facing the second side of the selectively-transmissive display pixel matrix. The backlight is configured to separately activate different subsets of the backlight pixels such that light emitted from an activated subset of backlight pixels and transmitted through the first lenticular array, the selectively-transmissive display pixel matrix, and the second lenticular array is emitted by the display panel as display light in a corresponding separate direction relative to the display panel.
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公开(公告)号：US20220319453A1
公开(公告)日：2022-10-06
申请号：US17639406
申请日：2019-12-12
申请人： GOOGLE LLC
发明人： Patrick Llull , John D. Perreault , Andrew Huibers
摘要： 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.
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公开(公告)号：US10855977B2
公开(公告)日：2020-12-01
申请号：US15897633
申请日：2018-02-15
申请人： Google LLC
发明人： John D. Perreault , Patrick Llull
IPC分类号： H04N13/04 , H04N9/47 , H04N13/383 , G02B27/00 , G02B27/01 , G02B30/26 , G02B30/27 , H04N13/128 , H04N13/305 , H04N13/344 , G02F1/29
摘要： 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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