公开(公告)号：US20230333380A1

公开(公告)日：2023-10-19

申请号：US17721220

申请日：2022-04-14

Applicant: Meta Platforms Technologies, LLC

Inventor： Dong CHEN ,  Yun-Han LEE ,  Kilbock LEE ,  Zhiming ZHUANG ,  Donghee NAM ,  Hyunmin SONG

IPC: G02B27/01 ,  H01L25/16 ,  H01L27/32 ,  H01L51/52 ,  H01L33/58 ,  H01L33/30 ,  H01L33/62

CPC classification number: G02B27/0172 ,  H01L25/167 ,  H01L27/322 ,  H01L51/5275 ,  H01L33/58 ,  H01L33/30 ,  H01L51/5293 ,  H01L33/62 ,  G02B2027/0178

Abstract: A micro-light emitting diode device includes a backplane including drive circuits formed thereon, an array of micro-LEDs bonded to the backplane and electrically coupled to the drive circuits, an array of polarization diffraction micro-lenses bonded to the array of micro-LEDs and including a planar surface, and a cover glass bonded to the planar surface of the array of polarization diffraction micro-lenses. A center of each polarization diffraction micro-lens of the array of polarization diffraction micro-lenses aligns with a center of a respective micro-LED of the array of micro-LEDs.

公开(公告)号：US20250060588A1

公开(公告)日：2025-02-20

申请号：US18776525

申请日：2024-07-18

Applicant: Meta Platforms Technologies, LLC

Inventor： Hyunmin SONG ,  Min Hyuk CHOI ,  Yun-Han LEE ,  Michael ESCUTI ,  Zhiming ZHUANG

IPC: G02B27/01

Abstract: A system includes a display element configured to output an image light. The system also includes an image combiner configured to guide the image light toward an eye-box region of the system. The system also includes a dimming device disposed at a side of the image combiner. The dimming device includes a dimming material layer including a mixture of liquid crystal (“LC”) molecules and dye molecules, and pretilt angles of the LC molecules and the dye molecules are configured with a predetermined variation in at least two opposite in-plane directions from a center to two opposite peripheries of the dimming material layer.