公开(公告)号：WO2021158566A2

公开(公告)日：2021-08-12

申请号：PCT/US2021/016248

申请日：2021-02-02

Applicant: APPLE INC.

Inventor： BHAKTA, Vikrant ,  COCILOVO, Byron R. ,  PENG, Guolin ,  CHOI, Hyungryul ,  DELAPP, Scott M. ,  OH, Se Baek

IPC: G02B27/01 ,  G02B5/20 ,  G02B2027/012 ,  G02B2027/0174 ,  G02B27/0172 ,  G02B5/203 ,  G02B5/22 ,  G02B5/26 ,  G02B5/32 ,  G02B6/0016 ,  G02B6/0023 ,  G02B6/0026 ,  G02B6/0035

Abstract: An electronic device may include an emissive display panel that emits light. The light may propagate along an optical path extending to an eye box. A waveguide with an input, coupler and an output coupler may be interposed on the optical path. An angle-selective transmission filter (ASTF) may be interposed on the optical path and may filter the emitted light as a function of angle to remove high-angle light from the optical path before the light is provided to the output coupler. The ASTF may include diffractive grating structures such as thin-film holograms, volume holograms, or surface, relief gratings, louvered mirrors, multi-layer coatings, or a pinhole array. This ASTF may serve to minimize stray light within the display, thereby optimizing the contrast and the modulation transfer function (MTF) of the display.

公开(公告)号：EP4268008A1

公开(公告)日：2023-11-01

申请号：EP22706453.2

申请日：2022-02-04

Applicant: Apple Inc.

Inventor： AIETA, Francesco ,  COCILOVO, Byron R. ,  OH, Se Baek ,  PFEIFFER, Jonathan B.

IPC: G02B27/01

公开(公告)号：EP4085290A2

公开(公告)日：2022-11-09

申请号：EP21709185.9

申请日：2021-02-02

Applicant: Apple Inc.

Inventor： BHAKTA, Vikrant ,  COCILOVO, Byron R. ,  PENG, Guolin ,  CHOI, Hyungryul ,  DELAPP, Scott M. ,  OH, Se Baek

IPC: G02B27/01 ,  G02B5/20