公开(公告)号：US11726252B2

公开(公告)日：2023-08-15

申请号：US17741404

申请日：2022-05-10

Applicant: Meta Platforms Technologies, LLC

Inventor： Zhujun Shi ,  Keith Patterson ,  Maxwell Parsons ,  Giuseppe Calafiore ,  Yongdan Hu ,  Zhimin Shi

IPC: G02F1/1343 ,  F21V8/00

CPC classification number: G02B6/0036 ,  G02B6/0078 ,  G02F1/13439 ,  G02F1/134309 ,  G02F2201/063 ,  G02F2201/302

Abstract: A self-lit display panel includes a photonic integrated circuit payer including an array of waveguides and an array of out-couplers for out-coupling portions of the illuminating light through pixels of the panel. The self-lit display panel may include a transparent electronic circuitry layer backlit by the photonic integrated circuit layer; the two layers may be on a same substrate or on opposed substrates defining a cell filled with an electro-active material. The configuration allows for chief ray engineering, zonal illuminating, and separate illumination with red, green, and blue illuminating light.

公开(公告)号：US11604356B1

公开(公告)日：2023-03-14

申请号：US17461263

申请日：2021-08-30

Applicant: Meta Platforms Technologies, LLC

Inventor： Stephen John Holmes ,  Wanli Chi ,  Maxwell Parsons ,  Jasmine Soria Sears

IPC: G02B27/01 ,  G06F3/00 ,  G06F3/01 ,  G06F1/16 ,  G02B5/30

Abstract: A near-eye display assembly presented herein includes an electronic display, an optical assembly, and scanning assembly. The electronic display has a first resolution. The optical assembly controls a field of view at an eye box and directs a plurality of light rays emitting from the electronic display toward the eye box. The scanning assembly shifts a direction of at least one of the light rays in accordance with emission instructions such that a virtual display is presented to the eye box, the virtual display having a second resolution greater than the first resolution. The display assembly can be implemented as a component of a head-mounted display of an artificial reality system.

公开(公告)号：US12099190B2

公开(公告)日：2024-09-24

申请号：US17549394

申请日：2021-12-13

Applicant: Meta Platforms Technologies, LLC

Inventor： Sihui He ,  Maxwell Parsons ,  Fenglin Peng ,  Miaomiao Xu ,  Yang Yang ,  Yu Shi ,  Dianmin Lin

IPC: G02B27/01 ,  G02B5/18 ,  G02B5/32 ,  G02B6/42 ,  G02B27/00 ,  F21V8/00

CPC classification number: G02B27/0172 ,  G02B5/1842 ,  G02B5/32 ,  G02B6/4206 ,  G02B6/4213 ,  G02B27/0081 ,  G02B6/0018 ,  G02B6/0036 ,  G02B2027/0174 ,  G02B2027/0178

Abstract: A waveguide is provided. The waveguide includes a substrate having two outer surfaces for propagating a beam of light in the substrate by reflecting the beam from the two outer surfaces. The waveguide includes at least one polarization volume hologram (PVH) grating to couple light in and/or out of the waveguide. The PVH grating may be a multi-layer PVH grating with graded birefringence.

公开(公告)号：US11714282B2

公开(公告)日：2023-08-01

申请号：US16506899

申请日：2019-07-09

Applicant: META PLATFORMS TECHNOLOGIES, LLC

Inventor： Wanli Chi ,  Chadwick Brian Martin ,  Scott Charles McEldowney ,  Maxwell Parsons ,  Stephen James McNally ,  Daniel Guenther Greif

IPC: G02B27/01

CPC classification number: G02B27/0172 ,  G02B27/0176 ,  G02B2027/0178

Abstract: A light source includes a first set of source elements and a second set of source elements. A respective set of source elements is disposed on a respective substrate and electrically coupled to a respective set of circuit pads formed on a respective top surface of the respective substrate by respective bond wires. At least a portion of the respective top surfaces face each other and are spaced apart from each other to accommodate at least some of the first set of source elements, at least some of the second set of source elements, and at least some of the bond wires. The display device that includes a light source configured to output image light, an optical assembly configured to collimate the image light, a scanning assembly configured to steer the image light, and an output device configured to output the image light for displaying images is also disclosed.