公开(公告)号：US20230375762A1

公开(公告)日：2023-11-23

申请号：US18222303

申请日：2023-07-14

Applicant: TOPPAN INC. ,  TOPPAN TOMOEGAWA OPTICAL FILMS CO., LTD.

Inventor： Yoshiko ISHIMARU ,  Sohei KADOTA ,  Koichi MINATO ,  Ryota OZAKI ,  Rui INOUE

IPC: G02B5/22

CPC classification number: G02B5/22

Abstract: Provided are an optical film that can reduce reflectance, increase luminance, reduce thickness, and improve color reproducibility a display device, and a display device using the same. An optical film characterized by comprising a transparent substrate, a colored layer laminated on one surface side of the transparent substrate and containing a dye, and a functional layer laminated on the other surface side of the transparent substrate, wherein the dye contains a first coloring material having a maximum absorption wavelength of 470 to 530 nm and a half width of the absorption spectrum of 15 to 45 nm, and a second coloring material having a maximum absorption wavelength of 560 to 620 nm and a half width of the absorption spectrum of 15 to 55 nm, and the transparent substrate has an ultraviolet shielding rate of 85% or more according to JIS L 1925.

公开(公告)号：US20230367051A1

公开(公告)日：2023-11-16

申请号：US18221646

申请日：2023-07-13

Applicant: TOPPAN INC. ,  TOPPAN TOMOEGAWA OPTICAL FILMS CO., LTD.

Inventor： Yuri YOKOYAMA ,  Yoshiko ISHIMARU ,  Koichi MINATO ,  Rui INOUE ,  Keisuke OGATA

IPC: G02B5/22 ,  G02B5/00 ,  G02B1/11

CPC classification number: G02B5/223 ,  G02B5/003 ,  G02B1/11

Abstract: Provided are an optical film that can reduce reflectance, increase luminance, and reduce thickness of a display device, a display device using the optical film, and a composition for forming ultraviolet absorbing layer used for producing the optical film. An optical film characterized in that having a transparent substrate, a colored layer laminated on one side of the transparent substrate and containing a dye, and a functional layer laminated on the colored layer, in which the dye contains a first coloring material having a maximum absorption wavelength within the range of 470 to 530 nm, and a second coloring material having a maximum absorption wavelength in the range of 560 to 620 nm, and the functional layer includes an ultraviolet absorbing layer having an ultraviolet shielding rate of 85% or more, and the pencil hardness of the surface under a load of 500 g is H or higher.

公开(公告)号：US20230357603A1

公开(公告)日：2023-11-09

申请号：US18222081

申请日：2023-07-14

Applicant: TOPPAN INC. ,  TOPPAN TOMOEGAWA OPTICAL FILMS CO., LTD.

Inventor： Yuri YOKOYAMA ,  Yoshiko ISHIMARU ,  Koichi MINATO ,  Rui INOUE ,  Keisuke OGATA

IPC: C09J7/38 ,  C09J11/06

CPC classification number: C09J7/385 ,  C09J11/06

Abstract: Provided are an adhesive sheet that can reduce reflectance, increase luminance and reduce thickness of a display device, a display device using the adhesive sheet, and a composition for forming adhesive layer used for producing the adhesive sheet. An adhesive sheet comprising a first adhesive layer containing an adhesive and a dye, and an ultraviolet absorbing layer laminated on one surface side of the first adhesive layer, wherein the dye contains a first coloring material having a maximum absorption wavelength in the range of 470 to 530 nm and a half width of the absorption spectrum of 15 to 45 nm, and a second coloring material having a maximum absorption wavelength in the range of 560 to 620 nm and a half width of the absorption spectrum of 15 to 55 nm, and the ultraviolet absorbing layer has an ultraviolet shielding rate of 85% or more according to JIS L 1925.