公开(公告)号：US10668690B2

公开(公告)日：2020-06-02

申请号：US16312777

申请日：2017-06-30

Applicant: DAI NIPPON PRINTING CO., LTD. ,  Yasuhiro Koike

Inventor： Seiichi Isojima ,  Takashi Kuroda

IPC: B32B7/023 ,  B32B27/34 ,  B32B27/36 ,  G02B5/30 ,  G09F9/30 ,  H01L27/32 ,  H01L51/50 ,  H05B33/02 ,  B32B7/02 ,  B32B27/28 ,  B32B27/30 ,  B32B27/32 ,  B32B27/08 ,  H01L51/52 ,  G02B1/04 ,  G02F1/13363 ,  G02F1/1333 ,  G02F1/1335

Abstract: The present invention provides: an optical laminate comprising at least two films, the optical laminate comprising at least a film A satisfying a given condition (1) and a film C satisfying a given condition (2), wherein a retardation value Re(0) observed in a direction of an axis perpendicular to a plane of the optical laminate is 4,000 to 30,000 nm, and a retardation value Re(40) observed in a direction of an axis tilted from the axis perpendicular to the plane of the optical laminate toward a slow axis by 40 degrees in a plane lying perpendicular to the plane of the optical laminate and extending along the slow axis is 4,000 to 25,000 nm, the slow axis being an axis along which refractive index is highest in a plane of the film A; and a display device comprising the optical laminate.

公开(公告)号：US12242095B2

公开(公告)日：2025-03-04

申请号：US17292918

申请日：2019-11-13

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Seiichi Isojima ,  Junya Eguchi ,  Takashi Kuroda ,  Hiroki Nakagawa

IPC: G02B5/20 ,  G02B1/04 ,  G02B5/28 ,  G02B5/30 ,  G09F9/30 ,  G02F1/1335

Abstract: Provided is an optical film that, when being incorporated into an image display device, can suppress the image display device from appearing pale. An optical film including a UV-absorbing layer containing a UV-absorbing agent B on a plastic film containing a UV-absorbing agent A, wherein fluorescence emission when the plastic film side is irradiated with excitation light having a wavelength of 365 nm and fluorescence emission when the UV-absorbing layer side is irradiated with excitation light having a wavelength of 365 nm satisfy a specific condition.

公开(公告)号：US11776710B2

公开(公告)日：2023-10-03

申请号：US16979029

申请日：2019-03-08

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Eiji Ooishi ,  Shoichiro Ogumi ,  Yukimitsu Iwata ,  Takashi Takekoshi ,  Seiichi Isojima

IPC: G02F1/1333 ,  G06F3/044 ,  H01B5/14 ,  B32B7/023 ,  B32B7/025 ,  B32B27/34 ,  B32B27/28 ,  B32B27/36 ,  H10K59/40

CPC classification number: H01B5/14 ,  B32B7/023 ,  B32B7/025 ,  B32B27/281 ,  B32B27/34 ,  B32B27/36 ,  G02F1/13338 ,  G06F3/0446 ,  B32B2262/103 ,  B32B2307/202 ,  B32B2307/412 ,  B32B2307/732 ,  B32B2457/202 ,  G06F2203/04102 ,  H10K59/40

Abstract: An electroconductive film which is capable of inhibiting milkiness; and a touch panel and image display device that include the electroconductive film are provided. According to one aspect of the present invention, an electroconductive film 10 including at least an electroconductive part 12, wherein the electroconductive part 12 includes a light-transmitting resin 14 and a plurality of electroconductive fibers 15 placed in the light-transmitting resin 14, and the diffused light reflectance (SCE) in a region of the electroconductive film 10 where the electroconductive part 12 is present is 0.5% or less, is provided.

公开(公告)号：US10792901B2

公开(公告)日：2020-10-06

申请号：US16329615

申请日：2017-08-31

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Seiichi Isojima ,  Yusuke Hashimoto ,  Jun Sato

IPC: B32B27/08 ,  B32B27/28 ,  B32B7/022 ,  B32B7/023 ,  B32B27/34 ,  G06F1/16 ,  G09F9/30 ,  H01L51/50

Abstract: One aspect of the present invention provides a foldable light-transmitting optical film 10 for use in an image display device, comprising a resin base material 11 and a resin layer 12 provided on one surface 11A of the resin base material 11, wherein the shear storage elastic modulus (G′) of the optical film 10 at 25° C. in the frequency range from 500 Hz to 1000 Hz inclusive is 1 MPa or more and 200 MPa or less, and the shear loss elastic modulus (G″) of the optical film 10 at 25° C. in the frequency range from 500 Hz to 1000 Hz inclusive is 0.1 MPa or more and 100 MPa or less.

公开(公告)号：US09541682B2

公开(公告)日：2017-01-10

申请号：US14832269

申请日：2015-08-21

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Seiichi Isojima ,  Hiroshi Kojima ,  Hiroki Nakagawa

IPC: F21V5/00 ,  G02B5/02 ,  F21V9/16

CPC classification number: G02B5/0242 ,  F21V5/002 ,  F21V9/30 ,  G02B5/0226

Abstract: The present invention provides a display device having excellent light energy conversion efficiency. The present invention relates to a display device including a light-diffusing layered body. The light-diffusing layered body includes a wavelength conversion layer containing optically isotropic semiconductor particles and a light-diffusing layer on at least one surface of the wavelength conversion layer. The light-diffusing layer contains a binder component and light-diffusing particles that contain an organic material or an inorganic material. The light-diffusing particles protrude in a range of 3 to 50% of the particle size of the light-diffusing particles from an outermost surface of the light-diffusing layer. The light-diffusing layer has projections and depressions on the outermost surface due to the light-diffusing particles protruding therefrom. The light-diffusing layer has a film thickness of 1 to 30 μm.

Abstract translation: 本发明提供一种具有优异的光能转换效率的显示装置。 本发明涉及包括光扩散层叠体的显示装置。 光漫射层叠体包括在波长转换层的至少一个表面上含有光学各向同性的半导体粒子和光漫射层的波长转换层。 光漫射层含有粘合剂成分和含有有机材料或无机材料的光漫射粒子。 光漫射粒子从光扩散层的最外表面突出的光扩散粒子的粒径的3〜50％的范围。 光扩散层由于从其突出的光漫射颗粒在最外​​表面上具有凹凸。 光漫射层的膜厚为1〜30μm。

公开(公告)号：US08692959B2

公开(公告)日：2014-04-08

申请号：US13742983

申请日：2013-01-16

Applicant: Dai Nippon Printing Co., Ltd.

Inventor： Seiji Shinohara ,  Seiichi Isojima ,  Hiroki Nakagawa ,  Gen Furui

IPC: G02F1/1335 ,  G02B5/30

CPC classification number: G02B1/115 ,  G02B5/3083 ,  G02F1/133528 ,  G06F3/041 ,  G06F3/044

Abstract: Provided is an optical layered body that includes a polyester base, a primer layer formed thereon, and a hard coat layer formed on the primer. The polyester has a retardation of not less than 8000 nm, and a difference (nx−ny) of 0.07 to 0.20 between a refractive index (nx) in a slow axis direction that is a high refractive index direction and a refractive index (ny) of a fast axis direction that is orthogonal to the slow axis direction, a refractive index (np) of the primer, the refractive index (nx) in the slow axis direction of the polyester, and the refractive index (ny) in the fast axis direction of the polyester satisfy ny

Abstract translation: 提供一种光学层叠体，其包括聚酯基底，形成在其上的底漆层和形成在底漆上的硬涂层。 聚酯具有不小于8000nm的延迟，并且在高折射率方向的慢轴方向上的折射率（nx）与折射率（ny）之间的差（nx-ny）为0.07至0.20， 与慢轴方向正交的快轴方向，底漆的折射率（np），聚酯的慢轴方向的折射率（nx）以及快轴的折射率（ny） 聚酯的方向满足ny

公开(公告)号：US12210176B2

公开(公告)日：2025-01-28

申请号：US17595753

申请日：2020-05-28

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Seiichi Isojima ,  Takashi Kuroda

IPC: G02B5/30

Abstract: An optical plastic film can suppress rainbow unevenness when viewed with naked eyes and blackout when viewed with polarized sunglasses without high in-plane retardation. The film has an average of in-plane retardations of 600 nm or less and satisfies: when a sample with a size of 50 mm in length×50 mm in width is cut out of the film, slow axis directions are measured at a total of five points including four points 10 mm advanced from the four corners of the sample toward the center and the center of the sample, and angles formed by any one side of the sample with the slow axis directions at the measurement points are respectively defined as D1 to D5, the difference between the maximum value and the minimum value of D1 to D5 is 5.0 degrees or more.

公开(公告)号：US10921648B2

公开(公告)日：2021-02-16

申请号：US15944238

申请日：2018-04-03

Applicant: Dai Nippon Printing Co., Ltd.

Inventor： Takashi Kuroda ,  Seiichi Isojima ,  Norinaga Nakamura

IPC: G02F1/13363 ,  G02F1/1335 ,  G02B1/10 ,  G02B5/30

Abstract: The present invention aims to provide a liquid crystal display device highly suppressing occurrence of rainbow interference pattern in displayed images. The present invention is a liquid crystal display device including: a back light source, a liquid crystal cell, a color filter, a polarizer, and a polarizer protective film arranged in the stated order, wherein the polarizer protective film has a retardation of not less than 6000 nm, and a difference (nx−ny) of not less than 0.05 between a refractive index (nx) in a slow axis direction that is a highest refractive index direction and a refractive index (ny) in a fast axis direction that is orthogonal to the slow axis direction, and an absorption axis of the polarizer and the slow axis of the polarizer protective film are arranged to form an angle within a range of 0°±30° or 90°±30°.

公开(公告)号：US20160116802A1

公开(公告)日：2016-04-28

申请号：US14990106

申请日：2016-01-07

Applicant: Dai Nippon Printing Co., Ltd.

Inventor： Takashi Kuroda ,  Seiichi Isojima ,  Norinaga Nakamura

IPC: G02F1/13363 ,  G02B5/30 ,  G02B1/10 ,  G02F1/1335

CPC classification number: G02F1/133634 ,  G02B1/10 ,  G02B5/3083 ,  G02F1/133528 ,  G02F2202/40 ,  G02F2413/12 ,  Y10T428/105

Abstract: The present invention aims to provide a liquid crystal display device highly suppressing occurrence of rainbow interference pattern in displayed images. The present invention is a liquid crystal display device including: a back light source, a liquid crystal cell, a color filter, a polarizer, and a polarizer protective film arranged in the stated order, wherein the polarizer protective film has a retardation of not less than 6000 nm, and a difference (nx−ny) of not less than 0.05 between a refractive index (nx) in a slow axis direction that is a highest refractive index direction and a refractive index (ny) in a fast axis direction that is orthogonal to the slow axis direction, and an absorption axis of the polarizer and the slow axis of the polarizer protective film are arranged to form an angle within a range of 0°±30° or 90°±30°.

Abstract translation: 本发明旨在提供一种高度抑制显示图像中的彩虹干涉图案的发生的液晶显示装置。 本发明是一种液晶显示装置，其特征在于，具有：按照所述顺序配置的背光源，液晶单元，滤色器，偏振片，偏振片保护膜，其中，所述偏振片保护膜的延迟小于等于 在高折射率方向的慢轴方向的折射率（nx）与快轴方向的折射率（ny）之间的差为（0.05以上）的差（nx-ny）为0.05以上 垂直于慢轴方向，并且偏振器的吸收轴和偏振器保护膜的慢轴被布置成形成在0°±30°或90°±30°的范围内的角度。

公开(公告)号：US09261728B2

公开(公告)日：2016-02-16

申请号：US13630511

申请日：2012-09-28

Applicant: Dai Nippon Printing Co., Ltd.

Inventor： Takashi Kuroda ,  Seiichi Isojima ,  Norinaga Nakamura

IPC: G02F1/1335 ,  G02F1/13363

CPC classification number: G02F1/133634 ,  G02B1/10 ,  G02B5/3083 ,  G02F1/133528 ,  G02F2202/40 ,  G02F2413/12

Abstract: The present invention aims to provide a liquid crystal display device highly suppressing occurrence of rainbow interference pattern in displayed images. The present invention is a liquid crystal display device including: a back light source, a liquid crystal cell, a color filter, a polarizer, and a polarizer protective film arranged in the stated order, wherein the polarizer protective film has a retardation of not less than 6000 nm, and a difference (nx−ny) of not less than 0.05 between a refractive index (nx) in a slow axis direction that is a highest refractive index direction and a refractive index (ny) in a fast axis direction that is orthogonal to the slow axis direction, and an absorption axis of the polarizer and the slow axis of the polarizer protective film are arranged to form an angle within a range of 0°±30° or 90°±30°.

Abstract translation: 本发明旨在提供一种高度抑制显示图像中的彩虹干涉图案的发生的液晶显示装置。 本发明是一种液晶显示装置，其特征在于，具有：按照所述顺序配置的背光源，液晶单元，滤色器，偏振片，偏振片保护膜，其中，所述偏振片保护膜的延迟小于等于 在高折射率方向的慢轴方向的折射率（nx）与快轴方向的折射率（ny）之间的差为（0.05以上）的差（nx-ny）为0.05以上 垂直于慢轴方向，并且偏振器的吸收轴和偏振器保护膜的慢轴被布置成形成在0°±30°或90°±30°的范围内的角度。