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    DIMMING SHUTTER COMBINING GUEST-HOST LIQUID CRYSTAL AND PHOTOCHROMIC MATERIALS FOR AUGMENTED REALITY APPLICATIONS
    13.
    发明申请
    DIMMING SHUTTER COMBINING GUEST-HOST LIQUID CRYSTAL AND PHOTOCHROMIC MATERIALS FOR AUGMENTED REALITY APPLICATIONS 有权

    公开(公告)号：US20230028165A1

    公开(公告)日：2023-01-26

    申请号：US17722138

    申请日：2022-04-15

    Applicant: Meta Platforms Technologies, LLC

    Inventor： Jasmine Soria Sears ,  Afsoon Jamali

    IPC: G02B27/01 ,  G02B26/04 ,  G02F1/00

    Abstract: A headset for augmented reality applications is provided. The headset includes at least one eyepiece configured to provide a see-through image to a user via a transparent optical component, and to provide an artificial image through a display, and a dimming shutter configured to adjust a transparency level of the transparent optical component. The dimming shutter further includes an active liquid crystal layer configured to adjust a transparency level according to an electrical power provided between two electrodes, and a photoactive layer configured to adjust the transparency level upon absorption of an ultraviolet radiation for a selected period of time. A default orientation of a host material in the active liquid crystal layer may be in a dark state or in a clear state, when no electrical power is provided. A method and a memory storing instructions to execute the method for use of the above device are also provided.

    Display devices and methods for processing light
    15.
    发明授权
    Display devices and methods for processing light 有权

    公开(公告)号：US11885991B1

    公开(公告)日：2024-01-30

    申请号：US17139722

    申请日：2020-12-31

    Applicant: META PLATFORMS TECHNOLOGIES, LLC

    Inventor： Andrew John Ouderkirk ,  James Ronald Bonar ,  Jasmine Soria Sears

    IPC: G02B27/01 ,  G02B5/18 ,  G02B5/02

    CPC classification number: G02B5/1842 ,  G02B5/0278 ,  G02B27/0172 ,  G02B2027/0147 ,  G02B2027/0178

    Abstract: A display device includes a display panel including a first array of light emitters having a first spacing in a first emission region of the display panel and a second array of light emitters having a second spacing in a second emission region of the display panel. The second spacing is distinct from the first spacing. The display device includes an optical filter including a first filter region and a second filter region. The first filter region changes distribution of first light from the first array of light emitters impinging on the first filter region so that the first light has a first distribution after passing through the first filter region. The second filter region changes distribution of second light from the second array of light emitters impinging on the second filter region so that the second light has a second distribution after passing through the second filter region.

    Display devices and methods of making the same
    18.
    发明授权
    Display devices and methods of making the same 有权

    公开(公告)号：US11626390B1

    公开(公告)日：2023-04-11

    申请号：US17403697

    申请日：2021-08-16

    Applicant: META PLATFORMS TECHNOLOGIES, LLC

    Inventor： Andrew John Ouderkirk ,  James Ronald Bonar ,  Jasmine Soria Sears

    IPC: H01L25/075 ,  H01L33/62 ,  H01L25/16

    Abstract: A display device includes a display panel having a first emission region and a second emission region that surrounds the first emission region. The display device includes a first plurality of light emitters arranged in the first emission region, a plurality of activation lines for the first emission region, a second plurality of light emitters arranged in the second emission region, and a plurality of activation lines for the second emission region. A single activation line of the plurality of activation lines for the first emission region is electrically coupled with a first number of light emitters in the first emission region and a single activation line of the plurality of activation lines for the second emission region is electrically coupled with a second number, distinct from the first number, of light emitters in the second emission region.

    Switchable retardation device with reduced residual retardation
    19.
    发明授权
    Switchable retardation device with reduced residual retardation 有权

    公开(公告)号：US11435641B1

    公开(公告)日：2022-09-06

    申请号：US17137916

    申请日：2020-12-30

    Applicant: META PLATFORMS TECHNOLOGIES, LLC

    Inventor： Afsoon Jamali ,  Arman Boromand ,  Jasmine Soria Sears ,  Sandro Pintz

    IPC: G02F1/139 ,  G02F1/133

    Abstract: A switchable optical retardation device includes a switchable retardation element including liquid crystals and an electrical driver circuit. While in a first state, the switchable retardation element modifies light transmitted through the switchable retardation element by causing a phase shift of a first retardation angle. While in a second state, the switchable retardation element modifies the light transmitted through the switchable retardation element by causing a phase shift of a second retardation angle distinct from the first retardation angle. The electrical driver circuit provides a first voltage for placing the switchable retardation element in the first state and a second voltage for placing the switchable retardation element in the second state. The first voltage is greater than the second voltage, the second voltage is a non-zero voltage, and the electrical driver circuit alternatingly provides the first voltage and the second voltage with a predefined frequency.

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