(19)

(11)

EP 4 381 344 A1

(12)

(43) Date of publication: 12.06.2024 Bulletin 2024/24 (21) Application number: 21953002.9 (22) Date of filing: 06.08.2021

(51) International Patent Classification (IPC):  G02F 1/1335(2006.01) G02F 1/13357(2006.01) (52) Cooperative Patent Classification (CPC): G02F 2203/11; G02F 1/133615; G02F 2201/083 (86) International application number: PCT/US2021/045089 (87) International publication number: WO 2023/014377 (09.02.2023 Gazette 2023/06)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (71) Applicant: New Vision Display, Inc. Roseville, CA 95747 (US)	(72) Inventor: PFEIFFER, Matthias T. Boulder, CO 80302 (US) (74) Representative: Tomkinson, Alexandra  Bailey Walsh & Co LLP 1 York Place Leeds, LS1 2DR Leeds, LS1 2DR (GB)