公开(公告)号：US20200103578A1

公开(公告)日：2020-04-02

申请号：US16497012

申请日：2018-03-12

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Robert M. Emmons ,  David A. Rosen ,  Nicholas A. Johnson ,  Gary T. Boyd ,  Trevor W. Stolber ,  Owen M. Anderson ,  Graham M. Clarke ,  Sherie A. Kristie ,  Edward C. Roberts ,  Kristy A. Gillette

IPC: F21V8/00

Abstract: A lightguide having opposing first and second major surfaces where the first major surface includes a plurality of extended features and a plurality of discrete features is described. The lightguide has a viewable area having a length at least 100 times a thickness of the lightguide. The extended features extend in a first in-plane direction across at least 90 percent of the length L of the viewable area. The discrete features are spaced apart along the length and width of the viewable area. The discrete features may be disposed in spaces between the extended features. The discrete features may have faces extending between and connecting adjacent extended features.

公开(公告)号：US20200041707A1

公开(公告)日：2020-02-06

申请号：US16581829

申请日：2019-09-25

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Matthew B. Johnson ,  Adam D. Haag ,  Seong Taek Lee ,  Brianna N. Nieson ,  Kristy A. Gillette ,  Michelle L. Toy

IPC: G02B5/30 ,  G02B5/22 ,  G02F1/1335 ,  H01L27/32

Abstract: Optical stacks are described. In particular, optical stacks including reflecting-absorbing polarizers and quarter-wave plates are disclosed. The optical core of the optical stack—which includes a reflecting-absorbing polarizer with at least one skin layer including polarizing dye—may be co-extruded or co-stretched.