公开(公告)号：EP4369890A1

公开(公告)日：2024-05-15

申请号：EP22837738.8

申请日：2022-07-07

申请人： TOPPAN INC.

发明人： FUTAMATA, Kai ,  ISHIMARU, Yoshiko ,  ISHIKAWA, Shinya

IPC分类号： H10K59/00 ,  G02B5/22 ,  B32B7/023 ,  B32B27/16 ,  B32B27/18 ,  B32B27/20 ,  G02B1/111 ,  G02B1/14 ,  G02B1/16 ,  G02B1/18 ,  G09F9/30 ,  H05B33/02 ,  H05B33/04 ,  H05B33/14

CPC分类号： B32B7/023 ,  B32B27/16 ,  B32B27/18 ,  B32B27/20 ,  G02B1/111 ,  G02B1/14 ,  G02B1/16 ,  G02B1/18 ,  G02B5/22 ,  G09F9/30 ,  H05B33/02 ,  H05B33/04 ,  H05B33/14

摘要： An optical film includes a transparent substrate, one or more colored layers that contain a colorant and are provided on the transparent substrate, and one or more functional layers that are provided on a side opposite to that on which the transparent substrate is disposed, with the one or more colored layers interposed therebetween. The one or more colored layers contain a first color material in which a maximum absorption wavelength is in a range of 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, and a second color material in which a maximum absorption wavelength is in a range of 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. At least the one or more functional layers or the one or more colored layers contain a black organic pigment. The one or more functional layers as a whole have an ultraviolet shielding rate of 85% or more. A surface of the optical film on the side closer to the one or more functional layers has a pencil hardness of H or more at a load of 500 g. Each of values a* and b* of a hue of the optical film is in a range of -5 or more and +5 or less.

公开(公告)号：EP4283348A1

公开(公告)日：2023-11-29

申请号：EP21921114.1

申请日：2021-07-15

申请人： TOPPAN INC.

发明人： ISHIMARU, Yoshiko ,  ISHIKAWA, Shinya

IPC分类号： G02B5/22 ,  G02B1/116 ,  G02B1/16 ,  G02B1/18 ,  G02B5/02 ,  G02F1/1335 ,  G09F9/00

摘要： 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, which is a chromaticity difference between before and after a light resistance test (irradiation for 120 hours under the conditions of a xenon lamp illuminance of 60 W/cm 2 (300 to 400 nm), a temperature of 45°C, and a humidity of 50% RH), is 5 or less.

公开(公告)号：EP4369889A1

公开(公告)日：2024-05-15

申请号：EP22837728.9

申请日：2022-07-07

申请人： TOPPAN INC.

发明人： FUTAMATA, Kai ,  ISHIMARU, Yoshiko ,  ISHIKAWA, Shinya

IPC分类号： H10K59/00 ,  G02B5/22 ,  B32B7/023 ,  B32B27/16 ,  B32B27/18 ,  B32B27/20 ,  G02B1/111 ,  G02B1/14 ,  G02B1/16 ,  G02B1/18 ,  G09F9/30 ,  H05B33/02 ,  H05B33/04 ,  H05B33/14

CPC分类号： B32B7/023 ,  B32B27/16 ,  B32B27/18 ,  B32B27/20 ,  G02B1/111 ,  G02B1/14 ,  G02B1/16 ,  G02B1/18 ,  G02B5/22 ,  G09F9/30 ,  H05B33/02 ,  H05B33/04 ,  H05B33/14

摘要： This optical film comprises: a transparent substrate having an ultraviolet blocking rate of 85% or more according to JIS L 1925; one or more functional layers formed on a first surface side of the transparent substrate; and a colored layer that is formed on a second surface side of the transparent substrate that is configured by one or more layers containing a colored material. The colored layer contains a first colorant that has a maximum absorption wavelength in a range of 470 nm or more and 530 nm or less, an absorption spectrum thereof having a half-width of 15 nm or more and 45 nm or less, and a second colorant that has a maximum absorption wavelength in a range of 560 nm or more and 620 nm or less, an absorption spectrum thereof having a half-width of 15 nm or more and 55 nm or less. At least one of the functional layer and the colored layer contains a black organic pigment. The hue values a* and b* of the optical film are each in a range of -5 to +5.

公开(公告)号：EP4307021A1

公开(公告)日：2024-01-17

申请号：EP22767272.2

申请日：2022-03-11

申请人： TOPPAN INC.

发明人： ISHIKAWA, Shinya ,  ISHIMARU, Yoshiko ,  FUTAMATA, Kai

IPC分类号： G02B5/22 ,  G09F9/00 ,  G09F9/30 ,  H01L27/32 ,  H01L51/50 ,  H05B33/12

摘要： 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. Each of a* and b* of the optical film irradiated with illuminant D65 light from an outermost surface of the optical film facing away from the colored layer is in a range from -5 to +5 inclusive.