公开(公告)号：US20240363040A1

公开(公告)日：2024-10-31

申请号：US18640817

申请日：2024-04-19

Applicant: Meta Platforms Technologies, LLC

Inventor： Kai-Han Chang ,  Yu-Jen Wang

IPC: G09G3/00 ,  G02F1/29 ,  G06F3/01

CPC classification number: G09G3/001 ,  G02F1/292 ,  G06F3/013 ,  G09G2340/0407 ,  G09G2354/00

Abstract: Gaze data of a user is received. A display zone corresponding to the gaze data is identified. The display zone is a portion of a display pixel array. The display light generated by the display zone is modulated to shift an optical path of the display light within the display zone.

公开(公告)号：US20240345442A1

公开(公告)日：2024-10-17

申请号：US18630816

申请日：2024-04-09

Applicant: Meta Platforms Technologies, LLC

Inventor： Xiangtong Li ,  Xinyu Zhu ,  Yu-Jen Wang ,  Linghui Rao ,  Yun-Han Lee

IPC: G02F1/1343 ,  G06F1/16

CPC classification number: G02F1/134318 ,  G02F1/13439 ,  G06F1/163

Abstract: A liquid crystal pixel includes liquid crystals, a source electrode, and a transparent common electrode layer. The liquid crystals are configured to change an alignment of the liquid crystals in response to a voltage applied across the source electrode and the transparent common electrode layer. The slit in the transparent common electrode layer includes multiple angled sections.

公开(公告)号：US20240345437A1

公开(公告)日：2024-10-17

申请号：US18613563

申请日：2024-03-22

Applicant: Meta Platforms Technologies, LLC

Inventor： Shenglin Ye ,  Xinyu Zhu ,  Xiangtong Li ,  Yu-Jen Wang ,  Yun-Han Lee ,  Linghui Rao

IPC: G02F1/13357 ,  G02F1/1335 ,  G02F1/1362

CPC classification number: G02F1/133611 ,  G02F1/133607 ,  G02F1/136222 ,  G02F1/136286

Abstract: A liquid crystal display (LCD) system for a head mounted display includes an LCD panel and a backlight unit. The LCD panel includes a color filter on array (COA) configuration. The backlight unit includes a light adjustment layer to adjust at least one characteristic of illumination light from a light source to tune the illumination light for enlarging an emission cone of display light.

公开(公告)号：US20240177637A1

公开(公告)日：2024-05-30

申请号：US18120744

申请日：2023-03-13

Applicant: Meta Platforms Technologies, LLC

Inventor： Shenglin Ye ,  Xinyu Zhu ,  Yu-Jen Wang ,  Xiangtong Li

IPC: G09G3/00 ,  G02B27/01 ,  G02B27/30 ,  G02F1/1335

CPC classification number: G09G3/003 ,  G02B27/0172 ,  G02B27/30 ,  G02F1/133607

Abstract: Narrowing of an eyebox in a display including a display panel and an ocular lens caused by uniform illumination of the display panel may be reduced by using a redistributor that provides a spatially variant angular distribution of brightness matched to performance of the ocular lens. When a beam of light from a pixel of the display panel has a first dependence of a beam coordinate at the image plane upon a pixel coordinate at the object plane when the display panel is illuminated with light having a spatially uniform angular distribution of brightness, the redistributor may be configured to convert the spatially uniform angular distribution of brightness of light illuminating the display panel into a spatially non-uniform angular distribution of brightness for lessening the first dependence.

公开(公告)号：US12204199B1

公开(公告)日：2025-01-21

申请号：US18141941

申请日：2023-05-01

Applicant: Meta Platforms Technologies, LLC

Inventor： Yu-Jen Wang ,  Xinyu Zhu ,  Chulwoo Oh ,  Sawyer Miller

IPC: G02F1/1335 ,  G02B27/28

Abstract: An optical subassembly for switchably focusing or redirecting a light beam may include a polarization element having a polarization-selective beam redirection/focusing property, a first switchable polarization rotator upstream of the polarization element, and a second switchable polarization rotator downstream of the polarization element. A polarizer may be provided immediately downstream of the second switchable polarization rotator. The first and second switchable polarization rotators may be operated in counterphase, so as to mutually offset dependence of angle and wavelength characteristics of the polarization rotators on the switching state of the polarization rotators.