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公开(公告)号：US20160054486A1
公开(公告)日：2016-02-25
申请号：US14832269
申请日：2015-08-21
Applicant: DAI NIPPON PRINTING CO., LTD.
Inventor： Seiichi ISOJIMA , Hiroshi KOJIMA , Hiroki NAKAGAWA
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。
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公开(公告)号：US20220075227A1
公开(公告)日：2022-03-10
申请号：US17419050
申请日：2019-12-27
Applicant: DAI NIPPON PRINTING CO., LTD.
Inventor： Seiichi ISOJIMA , Takahisa NOMURA , Tomoyuki HORIO , Makoto NANAUMI , Kana HORII , Yusuke HIRUMA , Takashi KURODA
IPC: G02F1/1335 , G02F1/1333 , G02F1/00 , H01L51/00
Abstract: Provided is an optical film which can promise to be thinner and makes it possible to enhance adhesion between a first functional layer and a second functional layer; and a polarizing plate and an image display device both of which include such an optical film. One aspect of the present invention is to provide an optical film 10 including a light-transmitting base material 11, a first functional layer 12, and a second functional layer 13 in this order, and further including a mixed layer 14; wherein at least one of the first functional layer 12 and the second functional layer 13 contains an ultraviolet absorber; wherein the mixed layer 14 is provided between the first functional layer 12 and the second functional layer 13, is adjacent to the first functional layer 12 and the second functional layer 13, and contains a component of the first functional layer 12 and a component of the second functional layer 13; wherein the total film thickness of the first functional layer 12, the second functional layer 13, and the mixed layer 14 is 1 μm or more and 10 μm or less; and wherein the ratio of the film thickness of the mixed layer 14 to the total film thickness of the first functional layer 12, the second functional layer 13, and the mixed layer 14 is 0.6% or more and 40% or less.
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公开(公告)号：US20190255807A1
公开(公告)日：2019-08-22
申请号：US16312777
申请日：2017-06-30
Applicant: Yasuhiro KOIKE , DAI NIPPON PRINTING CO., LTD.
Inventor： Seiichi ISOJIMA , Takashi KURODA
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.
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4.发明公开公开(公告)号：US20230152492A1
公开(公告)日：2023-05-18
申请号：US17905975
申请日：2021-03-17
Applicant: DAI NIPPON PRINTING CO., LTD.
Inventor： Takahisa NOMURA , Atsushi HORII , Toshiyuki SAKAI , Seiichi ISOJIMA
CPC classification number: G02B1/02 , G02B5/3025 , C08J7/042 , C08J7/043 , C08K3/22 , C09D135/02 , C09D7/61 , C09D5/002 , G02B1/14
Abstract: Provided is an optical laminate capable of suppressing deterioration of visibility in a high-temperature environment. The optical laminate comprises a layer comprising a metal oxide on a plastic film, wherein the emissivity of the optical laminate for light with a wavelength range of 2000 nm or more and 22000 nm or less is 0.27 or more and 0.75 or less as measured from the side of the layer comprising a metal oxide with respect to the plastic film.
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公开(公告)号：US20210165283A1
公开(公告)日：2021-06-03
申请号：US17146037
申请日：2021-01-11
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°.
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Patent Agency Ranking
公开(公告)号：US20220357486A1
公开(公告)日：2022-11-10
申请号：US17595691
申请日：2020-05-28
Applicant: DAI NIPPON PRINTING CO., LTD.
Inventor： Seiichi ISOJIMA , Takashi KURODA
Abstract: Provided is an optical plastic film that can have good scratch resistance against both a hard material and a soft material. An optical plastic film has a first surface and a second surface located on the opposite side to the first surface, wherein the indentation hardness of the cross section on the first surface side, the indentation hardness of the cross section on the second surface side, and the indentation hardness of the cross section in the middle in the thickness direction satisfy a predetermined relationship in the conveyance direction and the transverse direction of the plastic film.
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公开(公告)号：US20220214486A1
公开(公告)日：2022-07-07
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: Provided is an optical plastic film that can suppress rainbow unevenness when visually recognized with naked eyes and blackout when visually recognized with polarized sunglasses without high in-plane retardation. The optical plastic film has an average of in-plane retardations of 600 nm or less and satisfies the following condition: when a sample with a size of 50 mm in length×50 mm in width is cut out of the plastic 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, D2, D3, D4, and D5, the difference between the maximum value of D1 to D5 and the minimum value of D1 to D5 is 5.0 degrees or more.
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公开(公告)号：US20210118589A1
公开(公告)日：2021-04-22
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
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.
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9.发明申请公开(公告)号：US20210405272A1
公开(公告)日：2021-12-30
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
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.
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公开(公告)号：US20190315105A1
公开(公告)日：2019-10-17
申请号：US16329615
申请日：2017-08-31
Applicant: DAI NIPPON PRINTING CO., LTD.
Inventor： Seiichi ISOJIMA , Yusuke HASHIMOTO , Jun Sato
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.
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