公开(公告)号：US20230422567A1

公开(公告)日：2023-12-28

申请号：US18244895

申请日：2023-09-11

Applicant: TOPPAN INC.

Inventor： Shinya ISHIKAWA ,  Yoshiko ISHIMARU ,  Kai FUTAMATA

IPC: H10K59/32 ,  H10K59/38 ,  H10K59/12 ,  G02B1/18 ,  G02B1/16

CPC classification number: H10K59/32 ,  H10K59/38 ,  H10K59/1201 ,  G02B1/18 ,  G02B1/16 ,  H10K2102/302

Abstract: An optical film includes a transparent substrate in which an ultraviolet shielding rate is 85% or more, and a colored layer containing a colorant. The colored layer includes one or more layers containing a first colorant material in which a maximum absorption wavelength is 470 nm or more and 530 nm or less and a half width of an absorption spectrum thereof is 15 nm or more and 45 nm or less, a second colorant material in which a maximum absorption wavelength is 560 nm or more and 620 nm or less and a half width of an absorption spectrum thereof is 15 nm or more and 55 nm or less, and a third colorant material in which a wavelength in a wavelength range of 400 nm to 780 nm at which a transmittance is lowest is in a range of 650 nm or more and 780 nm or less.

公开(公告)号：US20230358931A1

公开(公告)日：2023-11-09

申请号：US18354563

申请日：2023-07-18

Applicant: TOPPAN INC.

Inventor： Yoshiko ISHIMARU ,  Shinya ISHIKAWA

IPC: G02B5/20

CPC classification number: G02B5/208 ,  G02B1/11

Abstract: The optical sheet includes: a first adhesive layer containing an adhesive and a colorant, the first adhesive layer having opposite first and second surfaces; and an ultraviolet shielding layer arranged to face the first surface. The colorant contains at least one of a first coloring material having a maximum absorption wavelength in a range of 470 to 530 nm and an absorption spectral half width of 15 to 45 nm, a second coloring material having a maximum absorption wavelength in a range of 560 to 620 nm and an absorption spectral half width of 15 to 55 nm, and a third coloring material in which a wavelength having the lowest transmittance in a wavelength range of 400 to 800 nm is in a range of 650 to 800 nm. The ultraviolet shielding layer has an ultraviolet shielding rate of 85% or more. ΔE * ab.