公开(公告)号：US12117635B2

公开(公告)日：2024-10-15

申请号：US17438245

申请日：2020-04-28

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michelle L. Toy ,  Kristy A. Gillette ,  Matthew B. Johnson ,  Eileen M. Franey ,  Carley A. Haroldson ,  Joseph P. Attard ,  Guy M. Kallman ,  William Blake Kolb

IPC: G02B27/01 ,  G02B5/30

CPC classification number: G02B5/305 ,  G02B27/0101 ,  G02B2027/012

Abstract: An optical stack includes an optical film (200) and an optical adhesive (500) disposed on the optical film. The optical adhesive has a major structured surface facing away from the optical film that includes a plurality of channels formed therein. The channels define a plurality of substantially flat land regions therebetween. The land regions include at least about 50% of a total surface area of the major structured surface. When the optical stack is placed on a support surface with the major structured surface of the optical adhesive contacting the support surface, the optical stack bonds to the support surface and may be removed from, or slidingly repositioned on, the support surface without damage to the optical adhesive or the support surface, and upon application of at least one of heat and pressure, the optical stack substantially permanently bonds to the support surface and the plurality of channels substantially disappear.

公开(公告)号：US20240377568A1

公开(公告)日：2024-11-14

申请号：US18783587

申请日：2024-07-25

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michelle L. Toy ,  Kristy A. Gillette ,  Matthew B. Johnson ,  Eileen M. Franey ,  Carley A. Haroldson ,  Joseph P. Attard ,  Guy M. Kallman ,  William Blake Kolb

IPC: G02B5/30 ,  G02B27/01

Abstract: An optical stack includes an optical film and an optical adhesive disposed on the optical film. The optical adhesive has a major structured surface facing away from the optical film that includes a plurality of channels formed therein. The channels define a plurality of substantially flat land regions therebetween. The land regions include at least about 50% of a total surface area of the major structured surface. When the optical stack is placed on a support surface with the major structured surface of the optical adhesive contacting the support surface, the optical stack bonds to the support surface and may be removed from, or slidingly repositioned on, the support surface without damage to the optical adhesive or the support surface, and upon application of at least one of heat and pressure, the optical stack substantially permanently bonds to the support surface and the plurality of channels substantially disappear.

公开(公告)号：US20220187521A1

公开(公告)日：2022-06-16

申请号：US17438245

申请日：2020-04-28

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michelle L. Toy ,  Kristy A. Gillette ,  Matthew B. Johnson ,  Eileen M. Franey ,  Carley A. Haroldson ,  Joseph P. Attard ,  Guy M. Kallman ,  William Blake Kolb

IPC: G02B5/30 ,  G02B27/01

Abstract: An optical stack includes an optical film (200) and an optical adhesive (500) disposed on the optical film. The optical adhesive has a major structured surface facing away from the optical film that includes a plurality of channels formed therein. The channels define a plurality of substantially flat land regions therebetween. The land regions include at least about 50% of a total surface area of the major structured surface. When the optical stack is placed on a support surface with the major structured surface of the optical adhesive contacting the support surface, the optical stack bonds to the support surface and may be removed from, or slidingly repositioned on, the support surface without damage to the optical adhesive or the support surface, and upon application of at least one of heat and pressure, the optical stack substantially permanently bonds to the support surface and the plurality of channels substantially disappear.