公开(公告)号：US11427025B2

公开(公告)日：2022-08-30

申请号：US15953676

申请日：2018-04-16

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Naomichi Mimita ,  Mizuki Yanagimoto ,  Yuko Masunaga

IPC: G02B5/18 ,  G09F3/03 ,  B42D25/328 ,  G09F3/02 ,  G09F19/12 ,  B42D25/324 ,  B42D25/29 ,  B42D25/373 ,  B42D25/378 ,  B42D25/465 ,  B44F1/14

Abstract: A display that exhibits improved anti-counterfeiting effects. The display includes an uneven-structure-forming layer having an uneven structure on one surface and a reflecting layer that covers at least part of an unevenly structured surface. In the display, the uneven-structure-forming layer includes a first region group including a plurality of first regions, each first region including a flat part and a plurality of convexities or a plurality of concavities, the top surface of each of the convexities or the bottom surface of each of the concavities is substantially parallel to a surface of the flat part; distances between the centers of adjacent convexities or concavities are not equal; the convexities have a uniform height, or the concavities have a uniform depth; the first region group is formed, with the first regions arrayed inside at a regular pitch.

公开(公告)号：US10857829B2

公开(公告)日：2020-12-08

申请号：US16522434

申请日：2019-07-25

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Makoto Maehira ,  Masami Inokuchi ,  Mizuki Yanagimoto

IPC: B42D25/342 ,  B42D25/00 ,  B42D25/328 ,  B42D25/373 ,  B41J2/04 ,  B41J2/32 ,  B41M3/14 ,  G03G15/01 ,  B42D25/23 ,  B42D25/24

Abstract: A display member includes: a surface which is an observation object; a first image pattern which is covered by the surface and displays, through the surface, a first image including one or more first information elements for identifying an owner of the display member; a second image pattern which is covered by the surface and in which one or more second information elements are embedded, a part of the second image pattern restricting identification of the one or more second information elements, the second image pattern including a second image that differs from the first image and is for identifying the owner of the display member; and a concealment pattern that is located between the second image pattern and the surface and removes the restriction on identification of the one or more second information elements by concealing the part of the second image pattern.

公开(公告)号：US10921500B2

公开(公告)日：2021-02-16

申请号：US16018275

申请日：2018-06-26

Applicant: TOPPAN PRINTING CO., LTD.

Inventor： Naomichi Mimita ,  Mizuki Yanagimoto

IPC: G02B5/18 ,  B42D25/328 ,  B42D25/324 ,  B42D25/21 ,  B42D25/351 ,  B42D25/373

Abstract: A concavo-convex structure forming layer with a concavo-convex structure on one surface; and a light-reflecting layer on at least part of a surface of the concavo-convex structure. In the optical element, the concavo-convex structure forming layer includes a unit group made up of a plurality of units whose concavo-convex structures are different from each other; each of the units has a flat portion and either a plurality of convexities or a plurality of concavities, with an upper surface of each convexity or a bottom surface of each concavity being substantially parallel to a surface of the flat portion; the convexities or the concavities adjacent to each other have center-to-center distances that are not constant; the convexities or the concavities have a constant height or depth; and in the unit group, units having an identical concavo-convex structure are not arrayed at a pitch of less than 150 μm.