公开(公告)号：US20230194866A1

公开(公告)日：2023-06-22

申请号：US17553635

申请日：2021-12-16

Applicant: Meta Platforms Technologies, LLC

Inventor： Fenglin Peng ,  Jacques Gollier ,  Liangyu Qiu ,  Xingzhou Tu ,  Ying Geng

IPC: G02B27/01 ,  G02B27/09 ,  G02B26/08

CPC classification number: G02B27/0172 ,  G02B27/0961 ,  G02B26/0816 ,  G02B2027/0178 ,  G02B2027/0112

Abstract: An illuminator for a display panel includes a slab of transparent material for propagating illuminating light between outer surfaces of the slab, an out-coupling grating supported by the slab for out-coupling portions of the illuminating light along one of the outer surfaces of the slab, and an amplitude and/or phase mask for forming an array of light spots from the out-coupled illuminating light portions downstream of the focusing element for illuminating pixels of the display panel. The array of light spots may be repeated at a distance from the mask due to Talbot effect. A beam redirecting element such as a tiltable reflector and/or a steering surface may be provided to shift the lateral location of the illuminating light spots.

公开(公告)号：US20220342121A1

公开(公告)日：2022-10-27

申请号：US17704466

申请日：2022-03-25

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Tingling Rao ,  Xingzhou Tu ,  Lafe Joseph Purvis, II ,  Arman Boromand ,  Kimberly Kay Childress ,  Andrew John Ouderkirk ,  Ying Geng ,  Poer Sung

IPC: G02B1/04 ,  G02B3/08 ,  G02B27/01 ,  G02B1/02 ,  B29D11/00

Abstract: An optical element (e.g., a lens) may include an optically uniaxial or optically biaxial organic solid, for example, an organic molecular solid. The direction of a maximum refractive index of the organic solid may be aligned substantially orthogonal to an optical axis of the lens. In some examples, a device may include a display and an optical configuration configured to receive light from the display and direct the light to a remote view location. In some examples, the optical configuration may comprise a lens and at least one surface of the lens may include a plurality of facets, for example, to form a Fresnel lens.

公开(公告)号：US12204107B2

公开(公告)日：2025-01-21

申请号：US17553635

申请日：2021-12-16

Applicant: Meta Platforms Technologies, LLC

Inventor： Fenglin Peng ,  Jacques Gollier ,  Liangyu Qiu ,  Xingzhou Tu ,  Ying Geng

IPC: G02B27/01 ,  G02B26/08 ,  G02B27/09

Abstract: An illuminator for a display panel includes a slab of transparent material for propagating illuminating light between outer surfaces of the slab, an out-coupling grating supported by the slab for out-coupling portions of the illuminating light along one of the outer surfaces of the slab, and an amplitude and/or phase mask for forming an array of light spots from the out-coupled illuminating light portions downstream of the focusing element for illuminating pixels of the display panel. The array of light spots may be repeated at a distance from the mask due to Talbot effect. A beam redirecting element such as a tiltable reflector and/or a steering surface may be provided to shift the lateral location of the illuminating light spots.

公开(公告)号：US12124070B2

公开(公告)日：2024-10-22

申请号：US18128497

申请日：2023-03-30

Applicant: Meta Platforms Technologies, LLC

Inventor： Jian Xu ,  Xingzhou Tu ,  Ying Geng ,  Jacques Gollier

IPC: F21V8/00 ,  G02B27/01 ,  G02F1/1335 ,  G03F7/00 ,  G03H1/04

CPC classification number: G02B6/005 ,  G02B6/0066 ,  G02B27/0172 ,  G02F1/133514 ,  G02F1/133528 ,  G03F7/70191 ,  G03F7/70408 ,  G03H1/0402 ,  G02B2027/0112 ,  G02F2201/52 ,  G03H2223/13 ,  G03H2260/12

Abstract: According to examples, a phase plate may include a transparent substrate and a photopolymer layer attached to the transparent substrate. The photopolymer layer may adjust a backlight via a phase adjustment and focusing. The phase plate may focus a plurality of red, green, and blue components of the backlight onto respective red, green, and blue subpixels of a thin-film-transistor (TFT) layer deposited thereon. A distance between the photopolymer layer of the phase plate and the plurality of red, green, and blue subpixels of the thin-film-transistor (TFT) layer may be in a range from about 200 μm to about 500 μm. In some examples, the phase plate may be part of a liquid crystal display (LCD) apparatus along with a red, green, blue (RGB) laser to provide backlight; a grating light guide to transmit the backlight; and a liquid crystal display (LCD) layer on the thin-film-transistor (TFT) layer.

公开(公告)号：US20230393309A1

公开(公告)日：2023-12-07

申请号：US18192986

申请日：2023-03-30

Applicant: Meta Platforms Technologies, LLC

Inventor： Tingling Rao ,  Xingzhou Tu ,  Yang Zhao ,  Andrew John Ouderkirk ,  Ying Geng

IPC: G02B3/08 ,  G02B1/04 ,  G02B1/02

CPC classification number: G02B3/08 ,  G02B1/041 ,  G02B1/02 ,  G02B2003/0093

Abstract: A Fresnel lens includes a lens body having a structured surface with a plurality of facets, where the lens body includes an organic solid crystal having mutually-orthogonal refractive indices, nx, ny, nz. In a related vein, an apparatus includes a display and an optical configuration configured to receive display light from the display, where (a) the optical configuration includes a Fresnel lens assembly having a Fresnel lens and a Pancharatnam-Berry Phase lens overlying the Fresnel lens, (b) the Fresnel lens includes a lens body having a structured surface including a plurality of facets, and (c) the lens body includes an organic solid crystal.