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    DISPLAY SYSTEM WITH A SINGLE PLATE OPTICAL WAVEGUIDE AND INDEPENDENTLY ADJUSTABLE MICRO DISPLAY ARRAYS
    31.
    发明申请
    DISPLAY SYSTEM WITH A SINGLE PLATE OPTICAL WAVEGUIDE AND INDEPENDENTLY ADJUSTABLE MICRO DISPLAY ARRAYS 审中-公开

    公开(公告)号：US20190392746A1

    公开(公告)日：2019-12-26

    申请号：US16016366

    申请日：2018-06-22

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： David D. Bohn

    IPC: G09G3/20 ,  G09G3/32 ,  F21V8/00 ,  G02B27/01

    Abstract: Display systems with a single plate optical waveguide and independently adjustable micro display arrays and related methods are provided. A method includes coupling: a first light portion received from the first micro display array to a first input grating region of the optical waveguide, a second light portion received from the second micro display array to a second input grating region of the optical waveguide, and a third light portion received from the third micro display array to a third input grating region of the optical waveguide. The method further includes directing: a first diffracted portion of the first light portion to a first expansion grating, a second diffracted portion of the second light portion to a second expansion grating, and a third diffracted portion of the third light portion to a third expansion grating. The method further includes using a single output grating outputting combined light.

    Transparent display backlight assembly
    33.
    发明授权
    Transparent display backlight assembly 有权

    公开(公告)号：US10254464B2

    公开(公告)日：2019-04-09

    申请号：US15341881

    申请日：2016-11-02

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： David D. Bohn ,  Rod G. Fleck ,  Derek Leslie Knee

    IPC: F21V7/04 ,  F21V8/00 ,  G02F1/1335 ,  G02F1/1333 ,  B82Y20/00

    Abstract: In embodiments of a transparent display backlight assembly, a backlight panel is operable as a transparent panel, and a light source generates light that the backlight panel directs from the light source to illuminate a display panel of a display device. Light refraction features refract and scatter the light, where the light refraction features are spaced for approximate transparency of the backlight panel and to illuminate the display panel. An active diffuser can be implemented as an additional transparent panel and operable for activation to diffuse the light from the backlight panel that illuminates the display panel.

    Pupil-expansion optic with offset entry apertures
    34.
    发明授权
    Pupil-expansion optic with offset entry apertures 有权

    公开(公告)号：US10222620B2

    公开(公告)日：2019-03-05

    申请号：US15433794

    申请日：2017-02-15

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： David D. Bohn

    IPC: G02B27/01 ,  F21V8/00 ,  G02B3/00 ,  G02B27/00 ,  G02B27/42

    Abstract: A near-eye display system comprises first and second optical waveguides. The first optical waveguide is configured to receive a first image through a first entry aperture, to expand the first image along the first optical waveguide, and to release an expanded first image. Layered parallel to the first optical waveguide, the second optical waveguide is configured to receive a second image through a second entry aperture, to expand the second image along the second optical waveguide, and to release an expanded second image to overlap the expanded first image. The second entry aperture is offset from the first entry aperture along the second optical waveguide.

    DISPLAY ENGINES FOR USE WITH OPTICAL WAVEGUIDES
    37.
    发明申请
    DISPLAY ENGINES FOR USE WITH OPTICAL WAVEGUIDES 有权

    公开(公告)号：US20180082644A1

    公开(公告)日：2018-03-22

    申请号：US15273249

    申请日：2016-09-22

    Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC

    Inventor： David D. Bohn

    IPC: G09G3/34 ,  F21V8/00 ,  G02B27/01 ,  G03B21/00

    CPC classification number: G09G3/346 ,  G02B6/003 ,  G02B6/0076 ,  G02B26/0833 ,  G02B27/0101 ,  G02B27/0172 ,  G02B2027/0112 ,  G02B2027/0125 ,  G02B2027/0178 ,  G03B21/008 ,  G09G3/001 ,  G09G3/3413 ,  H04N9/3129

    Abstract: A display engine includes light emitting elements, an optical subsystem to produce a single collimated beam of light from the light emitted by the light emitting elements, one or more image producing MEMS mirrors, one or more image reprojecting MEMS mirrors, and a controller. One of the image producing MEMS mirror(s) is positioned to reflect the single beam of light produced by the optical subsystem. The controller controls the image producing MEMS mirror(s) and the image reprojecting MEMS mirror(s). The image reprojecting MEMS mirror(s) is/are controlled and is/are positioned relative to the image producing MEMS mirror(s) and relative to input-coupler(s) of optical waveguide(s) so that a pupil corresponding to a scanned image that the image producing MEMS mirror(s) project onto one of the image reprojecting MEMS mirror(s), is reprojected by the image reprojecting MEMS mirror(s) onto the input-coupler(s) of the optical waveguide(s) and thereby coupled into the optical waveguide(s).

    Display efficiency optimization by color filtering
    39.
    发明授权
    Display efficiency optimization by color filtering 有权

    公开(公告)号：US09664905B2

    公开(公告)日：2017-05-30

    申请号：US13931241

    申请日：2013-06-28

    Applicant: Microsoft Technology Licensing, LLC

    Inventor： David D. Bohn ,  Ned Nestorovic ,  Rod G. Fleck ,  Cynthia Bell

    IPC: G02B27/00 ,  G02B27/01 ,  G02B5/18 ,  F21V8/00

    CPC classification number: G02B27/0172 ,  G02B5/18 ,  G02B6/0076 ,  G02B2027/0112 ,  G02B2027/0178

    Abstract: Technology is disclosed for optimizing a near-eye display using a waveguide. A first waveband for a first color narrower than the full spectral bandwidth for the first color and a second waveband for a second color adjacent to the first color in the visible spectrum are generated in image light of an image generation unit like a microdisplay. The first waveband and the second waveband are coupled into a same layer of a diffractive waveguide. An input grating of the same layer of the waveguide has a grating wavelength band approximately matching a waveband extensive with the first waveband and the second waveband. A converted green light emitting diode (LED) may be used for obtaining a first waveband centered around 515 nm in some examples. One of more of the wavebands may be obtained using filters, for example filters using dichroic mirrors, quantum dots or a combination of these.

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