公开(公告)号：US11215752B1

公开(公告)日：2022-01-04

申请号：US17112147

申请日：2020-12-04

Applicant: Apple Inc.

Inventor： Wei Lin ,  Di Liu ,  Chunchia Huang ,  Nathan K. Gupta ,  Prabhakar Gulgunje ,  Shenglin Ye ,  Shubhaditya Majumdar

IPC: G02B6/08 ,  G02B6/02

Abstract: An electronic device may have a housing with a display. A protective display cover layer for the display may have an image transport layer such as an image transport layer formed from optical fibers. Extruded filaments of binder material may be fused together to form a layer of binder for the image transport layer. Each filament may contain multiple embedded optical fibers. As a result of the extrusion process, the optical fibers may be characterized by increasing lateral deformation at increasing distances from the center of the filament in which the optical fibers are embedded. Tension variations and variations in the orientation angle of the fibers in the image transport layer can be maintained below desired limits to ensure satisfactory optical performance for the image transport layer. The optical fibers and binder may be formed from polymers or other clear materials.

公开(公告)号：US11774644B1

公开(公告)日：2023-10-03

申请号：US16902091

申请日：2020-06-15

Applicant: Apple Inc.

Inventor： Jean-Pierre S. Guillou ,  Michael J. Brown ,  Michael B. Wittenberg ,  Wei Lin ,  Salman Karbasi ,  Shubhaditya Majumdar ,  Ian T. Clark ,  Nathan K. Gupta ,  Prabhakar Gulgunje ,  Chunchia Huang

IPC: G02B5/00 ,  G02B1/14 ,  G02B6/02 ,  H05K5/00 ,  G02F1/00

CPC classification number: G02B5/003 ,  G02B1/14 ,  G02B6/02 ,  G02F1/0063 ,  H05K5/0017

Abstract: An electronic device may have a housing with a display. A protective display cover layer for the display may have an image transport layer formed from fibers or Anderson localization material. The image transport layer may include light absorbing material. Light absorbing material may be incorporated as an additive into a component of the image transport layer such as the binder layer of a coherent fiber bundle or the cladding of fibers in the image transport layer. The image transport layer may also be formed from fibers with a light absorbing layer formed in addition to a transparent cladding. The image transport layer may be formed from Anderson localization material that has light absorbing material. Fibers for the image transport layer may be extruded with light absorbing portions. A polymer preform having light absorbing material may be drawn to form fibers for the image transport layer.