公开(公告)号：US20230296993A1

公开(公告)日：2023-09-21

申请号：US18014327

申请日：2021-08-06

Applicant: Magic Leap, Inc.

Inventor： Jeremy Lee SEVIER ,  Satish SADAM ,  Joseph Michael IMHOF ,  Kang LUO ,  Kangkang WANG ,  Roy Matthew PATTERSON ,  Qizhen XUE ,  Brett William BEST ,  Charles Scott CARDEN ,  Matthew S. SHAFRAN ,  Michael Nevin MILLER

IPC: G03F9/00 ,  G03F7/00

CPC classification number: G03F9/7042 ,  G03F7/0002 ,  G03F9/7011 ,  G03F9/7046

Abstract: Systems and methods for managing multi-objective alignments in imprinting (e.g., single-sided or double-sided) are provided. An example system includes rollers for moving a template roll, a stage for holding a substrate, a dispenser for dispensing resist on the substrate, a light source for curing the resist to form an imprint on the substrate when a template of the template roll is pressed into the resist on the substrate, a first inspection system for registering a fiducial mark of the template to determine a template offset, a second inspection system for registering the imprint on the substrate to determine a wafer registration offset between a target location and an actual location of the imprint, and a controller for controlling to move the substrate with the resist below the template based on the template offset, and determine an overlay bias of the imprint on the substrate based on the wafer registration offset.

公开(公告)号：US20240184113A1

公开(公告)日：2024-06-06

申请号：US18414100

申请日：2024-01-16

Applicant: Magic Leap, Inc.

Inventor： Roy Matthew PATTERSON ,  Chulwoo OH ,  Ravi Kumar KOMANDURI ,  Charles Scott CARDEN ,  Michael Nevin MILLER ,  Vikramjit SINGH ,  Shuqiang YANG

IPC: G02B27/01 ,  G02F1/29

CPC classification number: G02B27/0172 ,  G02B6/0076 ,  G02F1/29 ,  G02B2027/0112 ,  G02F1/294

Abstract: A display device includes a waveguide assembly comprising a waveguide configured to outcouple light out of a major surface of the waveguide to form an image in the eyes of a user. An adaptive lens assembly comprises a switchable waveplate assembly. The switchable waveplate assembly includes quarter-wave plates on opposing sides of a switchable liquid crystal layer, and electrodes on the quarter-wave plates in the volume between the quarter-wave plates. The electrodes can selectively establish an electric field and may serve as an alignment structure for molecules of the liquid crystal layer. Portions of the adaptive lens assembly may be manufactured by roll-to-roll processing in which a substrate roll is unwound, and alignment layers and liquid crystal layers are formed on the substrate as it moves towards a second roller, to be wound on that second roller.