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公开(公告)号：US11453230B2
公开(公告)日：2022-09-27
申请号：US17033670
申请日：2020-09-25
Applicant: FUJIFILM Corporation
Inventor： Toshiyuki Makuta , Shigeaki Nimura , Hiroshi Inada , Rie Takasago , Tomohiro Mizuno
IPC: B41M5/00 , B41J2/01 , C09D11/328 , C09D11/38 , B41J2/21
Abstract: Provided is an image forming method including a step of imagewisely applying, onto a base material by an inkjet method, at least two inks containing a polymerizable liquid crystal compound, a chiral compound, and a polymerization initiator and having reflection wavelengths different from each other, such that the total application amount of the inks provides an image area ratio of 50% or more in an image forming region.
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公开(公告)号：US20190033634A1
公开(公告)日：2019-01-31
申请号：US16141992
申请日：2018-09-26
Applicant: FUJIFILM Corporation
Inventor： Shunya Katoh , Rie Takasago
IPC: G02F1/1335 , G02B5/08 , G02B5/30 , G02F1/139 , G02F1/1337 , C01B32/158 , H01L51/50 , H05B33/04
Abstract: Provided are a method for producing a reflective layer having excellent diffuse reflectivity and a reflective layer having excellent diffuse reflectivity. The method for producing a reflective layer of the present invention includes Step 1 of applying a composition containing a liquid crystal compound and a chiral agent onto a substrate and heating the applied composition to align the liquid crystal compound into a cholesteric liquid crystalline phase state, and Step 2 of forming a reflective layer by cooling or heating the composition so that the helical twisting power of the chiral agent contained in the composition in the cholesteric liquid crystalline phase state increases by 5% or more.
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公开(公告)号：US10942438B2
公开(公告)日：2021-03-09
申请号：US16553134
申请日：2019-08-27
Applicant: FUJIFILM Corporation
Inventor： Shunya Katoh , Rie Takasago
IPC: G03B21/604 , B32B7/023 , G02B5/26 , G02B5/30 , G02F1/1335
Abstract: An object of the present invention is to provide a structure having an excellent diffuse reflectivity and a method of manufacturing a structure. The object is achieved by a structure including a plurality of reflection layers formed by fixing a cholesteric liquid crystalline phase, the reflection layers being laminated, in which in a reflection layer, a bright portion and a dark portion derived from the cholesteric liquid crystalline phase have wavy structures in a cross section, and undulations of the wavy structures of bright portions closest to each other coincide in the adjacent reflection layers; and by a method of manufacturing a structure including forming a reflection layer formed by fixing a cholesteric liquid crystalline phase, in which a bright portion and a dark portion have wavy structures, in a cross section, and forming the reflection layer on a first reflection layer by a coating method using an composition containing a liquid crystal compound and a chiral agent.
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公开(公告)号：US11380725B2
公开(公告)日：2022-07-05
申请号：US16659580
申请日：2019-10-22
Applicant: FUJIFILM Corporation
Inventor： Hiroshi Inada , Rie Takasago , Shigeaki Nimura
IPC: H01L31/0232 , H01L27/146 , G02B5/30 , G02F1/1335
Abstract: Provided are an imaging device that is inconspicuous from the outside, can easily apply design, and can obtain a clear image, and a laminate. The imaging device includes: an imaging unit that includes an image pickup element; and a transflective film that is disposed on a side of the imaging unit where light is incident into the image pickup element and reflects a part of the incident light, in which the transflective film includes at least one of a cholesteric liquid crystal layer or a multi-layer polymer film, when seen from a direction perpendicular to a surface of the image pickup element where light is incident, a peripheral region surrounding the imaging unit satisfies L*≤50 in a CIE-Lab (D50) color space, and when seen from the direction perpendicular to the surface of the image pickup element where light is incident, the transflective film is disposed to cover at least the imaging unit and the peripheral region.
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公开(公告)号：US11209688B2
公开(公告)日：2021-12-28
申请号：US16141992
申请日：2018-09-26
Applicant: FUJIFILM Corporation
Inventor： Shunya Katoh , Rie Takasago
IPC: G02B5/08 , G02B5/30 , G02F1/1335 , G02F1/1337 , G02F1/139 , C01B32/158 , H01L51/50 , C09K19/58 , C09K19/04 , H05B33/04 , H01L33/04
Abstract: Provided are a method for producing a reflective layer having excellent diffuse reflectivity and a reflective layer having excellent diffuse reflectivity. The method for producing a reflective layer of the present invention includes Step 1 of applying a composition containing a liquid crystal compound and a chiral agent onto a substrate and heating the applied composition to align the liquid crystal compound into a cholesteric liquid crystalline phase state, and Step 2 of forming a reflective layer by cooling or heating the composition so that the helical twisting power of the chiral agent contained in the composition in the cholesteric liquid crystalline phase state increases by 5% or more.
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Patent Agency Ranking
公开(公告)号：US11433743B2
公开(公告)日：2022-09-06
申请号：US16720001
申请日：2019-12-19
Applicant: FUJIFILM Corporation
Inventor： Shigeaki Nimura , Hiroshi Inada , Rie Takasago
Abstract: Provided is a half mirror which is used for a windshield constituting a head up display, and in which a feeling of glare is suppressed, and a boundary between a region which selectively reflects visible light and a region which reflects visible light is made inconspicuous. The half mirror has a reflection layer including a non-reflection region which does not reflect visible light, a reflection region which selectively reflects visible light, and a mixed region which is provided between the regions and in which a non-reflection portion which does not reflect visible light and a reflection portion which selectively reflects visible light are mixed, and in the mixed region, an area of the reflection portion is gradually increased from the non-reflection region toward the reflection region.
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公开(公告)号：US11169389B2
公开(公告)日：2021-11-09
申请号：US16297743
申请日：2019-03-11
Applicant: FUJIFILM CORPORATION
Inventor： Yukito Saitoh , Kunihiro Atsumi , Naoyoshi Yamada , Daisuke Kashiwagi , Shigeaki Nimura , Mitsuyoshi Ichihashi , Rie Takasago
Abstract: An optical laminate includes a cholesteric liquid crystal layer and a lenticular lens which is laminated on the cholesteric liquid crystal layer, the cholesteric liquid crystal layer has a plurality of regions which are arranged in a pattern in an arrangement direction of lenses of the lenticular lens and are different from each other in terms of the reflection center wavelength for front incident light, and among the plurality of regions, a region having the shortest reflection center wavelength is disposed at a focus position of the lenticular lens for the front incident light, and among the plurality of regions, a region having a longer reflection center wavelength is disposed further away from the focus position.
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8.发明授权公开(公告)号：US11067252B2
公开(公告)日：2021-07-20
申请号：US16371135
申请日：2019-04-01
Applicant: FUJIFILM Corporation
Inventor： Rie Takasago , Hiroshi Inada , Masaru Yoshikawa , Mitsuyoshi Ichihashi
IPC: G02F1/1335 , F21V9/14 , G02B5/30 , G02B27/28 , G09F19/12 , A63J5/02 , G02B26/06 , A47F11/06 , G02F1/13 , G09F13/04 , F21W131/405 , F21W131/406 , A47F11/10 , C08F220/10 , C09K19/54 , C09K19/38 , G02F1/13357
Abstract: The present invention provides a viewing system capable of providing varying visual effects with a simpler configuration. In addition, the present invention also provides a display device, a stage installation, and a polymerizable liquid crystal composition. A viewing system according to the present invention is a viewing system for viewing an object to be irradiated including a light source unit, and the object to be irradiated with light emitted from the light source unit, in which the object to be irradiated includes a member, and a first circularly polarized light reflecting layer that is arranged on the member and reflects either right-handed circularly polarized light or left-handed circularly polarized light, the light source unit is capable of emitting light to be switchable between either right-handed circularly polarized light or left-handed circularly polarized light that is reflected by the first circularly polarized light reflecting layer or natural light, and circularly polarized light having a revolution direction opposite to a revolution direction of the circularly polarized light reflected by the first circularly polarized light reflecting layer, and color of the object to be irradiated is changed by switching light emitted from the light source unit.
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公开(公告)号：US10690827B2
公开(公告)日：2020-06-23
申请号：US16390025
申请日：2019-04-22
Applicant: FUJIFILM Corporation
Inventor： Hiroshi Inada , Mitsuyoshi Ichihashi , Shigeaki Nimura , Rie Takasago
IPC: G02B5/30 , G03F7/00 , G02F1/1335 , G02F1/13357
Abstract: A transmission decorative film includes a circular polarization plate and a circular polarization reflection layer disposed on the circular polarization plate. The circular polarization reflection layer includes at least one or more first cholesteric liquid crystalline layers that reflect any one of left circularly polarized light or right circularly polarized light. The first cholesteric liquid crystalline layer includes two or more reflection regions having different selective reflection wavelengths. The circular polarization plate transmits circularly polarized light having a revolution direction opposite to a revolution direction of the circularly polarized light reflected by the first cholesteric liquid crystalline layer.
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公开(公告)号：US10534238B2
公开(公告)日：2020-01-14
申请号：US16388892
申请日：2019-04-19
Applicant: FUJIFILM Corporation
Inventor： Hiroshi Inada , Shigeaki Nimura , Mitsuyoshi Ichihashi , Rie Takasago
Abstract: An object of the present invention is to provide a transmission decorative film having transparency and capable of applying different visual effects on observation surfaces. The transmission decorative film includes: a linear polarization plate; a first λ/4 plate laminated on one main surface of the linear polarization plate; a first cholesteric liquid crystalline layer laminated on the first λ/4 plate; a second λ/4 plate laminated on the other main surface of the linear polarization plate; and a second cholesteric liquid crystalline layer laminated on the second λ/4 plate, in which the first cholesteric liquid crystalline layer and the second cholesteric liquid crystalline layer respectively have wavelength selective reflectivity and reflect light which is right circularly polarized light or left circularly polarized light at a selective reflection wavelength.
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