US 12,135,525 B2
Display, transfer foil, adhesive label, and labeled article
Mayo Mikami, Tokyo (JP); Yuko Masunaga, Tokyo (JP); and Tomoko Kotegawa, Tokyo (JP)
Assigned to TOPPAN PRINTING CO., LTD., Tokyo (JP)
Filed by TOPPAN PRINTING CO., LTD., Tokyo (JP)
Filed on Mar. 3, 2021, as Appl. No. 17/190,421.
Application 17/190,421 is a continuation of application No. PCT/JP2019/028344, filed on Jul. 18, 2019.
Claims priority of application No. 2018-168560 (JP), filed on Sep. 10, 2018; and application No. 2018-231663 (JP), filed on Dec. 11, 2018.
Prior Publication US 2021/0191317 A1, Jun. 24, 2021
Int. Cl. G03H 1/00 (2006.01); B42D 25/328 (2014.01); G03H 1/02 (2006.01)
CPC G03H 1/0011 (2013.01) [B42D 25/328 (2014.10); G03H 1/02 (2013.01); G03H 2001/0204 (2013.01); G03H 2210/20 (2013.01); G03H 2223/23 (2013.01); G03H 2250/34 (2013.01); G03H 2250/35 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A display comprising a relief structure forming layer having a major surface which is provided with a relief type diffractive structure that displays a facial image including the eye as a diffraction image, wherein
the major surface comprises a first region corresponding to the pupil of the eye, a second region surrounding the first region and corresponding to at least a part of the iris of the eye, and a third region enclosing the second region and corresponding to the sclera of the eyer;
the first region has a circular shape, ridges or grooves of the diffraction structure in the first region are parallel to a first direction, a pitch of the ridges or grooves of the diffraction structure in the first region is constant throughout the first region;
the second region has an annular shape and encloses the first region;
the second region comprises a plurality of concentrically arranged second parts, each having grooves or ridges,
a common center of each of concentrically arranged second parts of said plurality concentrically arranged second parts is a center of the first region,
each second part of said plurality concentrically arranged second parts has a constant width throughout a circumference or a length of the respective second part,
a width of each second part of said plurality concentrically arranged second parts is the same,
each adjacent second parts of the plurality of concentrically arranged second parts are separated by an interval not having grooves or ridges, said interval decreases as the corresponding adjacent second parts are distanced further from the common center,
the grooves or ridges in each of the second part is parallel to the first direction, a pitch of the grooves or ridges in each second part of said plurality concentrically arranged second parts is the same as the pitch of grooves or ridges in the first region;
the third region comprises a plurality of concentrically arranged third parts, each having grooves or ridges,
a common center of each of concentrically arranged third parts of said plurality concentrically arranged third parts is the common center of the concentrically arranged second parts of said plurality concentrically arranged second parts,
each adjacent third parts of said plurality concentrically arranged third parts are separated by an interval not having grooves or ridges, said interval is the same for each adjacent third parts of said plurality concentrically arranged third parts and is smaller than any interval between adjacent second parts of said plurality of concentrically arranged second parts,
each third part of said plurality concentrically arranged third parts has a constant width throughout a length of the respective third part,
a width of each third part of said plurality concentrically arranged third parts is the same, and
the grooves or ridges in each of the third parts is parallel to the first direction, a pitch of the grooves or ridges in each second part of said plurality concentrically arranged second parts is different from the pitch of grooves or ridges in the first region.