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公开(公告)号:US20230152634A1
公开(公告)日:2023-05-18
申请号:US18088973
申请日:2022-12-27
Applicant: DAI NIPPON PRINTING CO., LTD.
Inventor: Norio ISHII , Keisuke MIURA , Yusuke HAGIWARA
IPC: G02F1/1339 , G02F1/1333 , B32B17/10 , B32B3/08 , G02F1/1335
CPC classification number: G02F1/13394 , G02F1/133388 , B32B17/10005 , B32B3/085 , B32B17/10036 , B32B17/10467 , B32B17/10761 , G02F1/133512 , B32B17/10293 , B32B17/10302 , B32B17/10348 , B32B17/10504 , B32B17/10788
Abstract: Provided are a laminated glass which has a reduced occurrence of voids and accumulation of liquid crystal, and a production method for the laminated glass. Also provided is a laminated glass which can prevent deterioration of a sealing material. This laminated glass 1 comprises a first glass plate 33A, a first intermediate film 31A, a liquid crystal film 10, a second intermediate film 31B, and a second glass plate, which are layered and disposed in this order, wherein the first glass plate 33A and the second glass plate 33B have a larger outer shape than that of the liquid crystal film 10, and a spacer 32 is provided in at least a portion of a region which is interposed between the first glass plate 33A and the second glass plate 33B and in which the liquid crystal film 10 is not disposed.
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公开(公告)号:US20190331947A1
公开(公告)日:2019-10-31
申请号:US16341988
申请日:2017-10-12
Applicant: DAI NIPPON PRINTING CO., LTD.
Inventor: Yusuke HAGIWARA , Yasunori HAYASHIDA , Tomoya KAWASHIMA , Yukihiro KYOUDEN
IPC: G02F1/1347 , G02F1/1335 , E06B9/24 , B60J3/04 , B60J3/00 , B32B7/12 , B32B17/10 , B32B7/023
Abstract: Provided is a laminate which can not only control the amount of external light transmitted, but can also be used as a mirror. A laminate 1 comprises: a first liquid crystal member 100; a reflection type polarizing member 200; and a second liquid crystal member 300. The first liquid crystal member has first liquid crystal cells with changing orientation states, and a first absorption type polarizing member. The first liquid crystal cells can be switched: between a mode where one type of polarized light of the incident light is blocked and the other type of polarized light is transmitted, and a mode where one type of polarized light of the incident light is blocked and the other type of polarized light is shifted and then transmitted; between a mode where the incident light is transmitted as-is, and a mode where one type of the polarized light is blocked and the other type of polarized light is transmitted; and between a mode where one type of polarized light of the incident light is blocked and the other type of polarized light is transmitted, and a mode where one type of polarized light of the incident light is transmitted and the other type of polarized light is blocked. The reflection type polarizing member receives the light transmitted by the first liquid crystal member, transmits one type of polarized light of the incident light, and reflects the other type of polarized light. The second liquid crystal member has second liquid crystal cells with changing orientation states, and a second absorption type polarizing member. When the reflection type polarizing member has transmitted polarized light, the second liquid crystal cells can be switched between a mode where the polarized light is blocked and a mode where the polarized light is transmitted.
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公开(公告)号:US20230044224A1
公开(公告)日:2023-02-09
申请号:US17969255
申请日:2022-10-19
Applicant: DAI NIPPON PRINTING CO., LTD.
Inventor: Yusuke HAGIWARA
IPC: G02F1/1334 , G02F1/1335 , G02F1/13 , G02F1/1333 , G02F1/1347
Abstract: A light modulating device including: a light transmissive plate having a curved surface; a light modulating cell; and an optically transparent adhesive film which is disposed between the curved surface of the light transmissive plate and the light modulating cell and attaches one side of the light modulating cell to the curved surface of the light transmissive plate.
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公开(公告)号:US20180307077A1
公开(公告)日:2018-10-25
申请号:US15775438
申请日:2016-11-11
Applicant: DAI NIPPON PRINTING CO., LTD.
Inventor: Keisuke MIURA , Yusuke NUSHI , Yusuke HAGIWARA
IPC: G02F1/1339 , G02F1/1337 , G02F1/137 , E06B9/24 , E06B3/67
CPC classification number: G02F1/13394 , B60J1/001 , B60J3/04 , E06B3/6722 , E06B9/24 , E06B2009/2417 , E06B2009/2464 , G02F1/13 , G02F1/1337 , G02F1/1339 , G02F1/13725 , G02F2001/13398
Abstract: The present invention is to enable avoidance of a reduction in external appearance quality, and stable driving, and prevent diffracted light from being discerned by avoiding a reduction in transmittance and a deterioration in liquid crystal alignment. A light control film is provided with: a first laminate in which an alignment layer is provided; a second laminate in which an alignment layer is provided; a liquid crystal layer which is sandwiched between the first and second laminates and contains liquid crystal molecules; a spacer disposed in the liquid crystal layer to hold the thickness of the liquid crystal layer; and electrodes provided in the first laminate and/or the second laminate, and controls transmitted light by controlling the alignment of the liquid crystal molecules driven by the electrodes. The proportion of an area occupied by the spacer per unit area in a light controllable-region of the liquid crystal layer is 0.1-10%.
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公开(公告)号:US20210208445A1
公开(公告)日:2021-07-08
申请号:US16761316
申请日:2018-11-02
Applicant: DAI NIPPON PRINTING CO., LTD.
Inventor: Takao IKEZAWA , Keisuke MIURA , Norio ISHII , Makoto YAMAKI , Yusuke NAKAMURA , Tomoya KAWASHIMA , Yusuke HAGIWARA , Satoru NISHIMA
IPC: G02F1/1333 , G02F1/1343 , B32B17/10 , B32B37/06
Abstract: A method for manufacturing a laminated glass whereby, in a laminated glass comprising a liquid crystal film sandwiched therein and having a three-dimensionally curved surface shape, the formation of wrinkles in the liquid crystal film can be suppressed; and a laminated glass which has a three-dimensionally curved surface shape and in which wrinkles in a liquid crystal film sandwiched therein are suppressed. The method for manufacturing the laminated glass comprises: a heat molding step for heating the liquid crystal film to a temperature higher than the glass transition point of the first base material layer and the second base material layer; and a bonding step for, after completing the heat molding step, heating the laminate, wherein the liquid crystal film is sandwiched between the first glass sheet and the second glass sheet, at a temperature lower than the glass transition point and bonding the same by applying a preset pressure.
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公开(公告)号:US20200326577A1
公开(公告)日:2020-10-15
申请号:US16913293
申请日:2020-06-26
Applicant: DAI NIPPON PRINTING CO., LTD.
Inventor: Keisuke MIURA , Yusuke HAGIWARA , Tsubasa HONDA , Noriko KATASHIMA , Norio ISHII , Tomoya KAWASHIMA
IPC: G02F1/1339 , E06B3/66 , E06B9/24
Abstract: The reliability of a spacer is improved in comparison to conventional ones. A light control film which is obtained by sandwiching a liquid crystal layer between first and second laminates that are provided with at least alignment layers and which controls light transmitted therethrough by controlling the alignment of liquid crystal molecules in the liquid crystal layer by driving electrodes that are provided on the first and second laminates. With respect to the first laminate, a base that is formed of a transparent film material is provided with a spacer that maintains the thickness of the liquid crystal layer. With respect to the first and second laminates, the Vickers hardness of the spacer is from 16.9 to 40.2 inclusive, and the Vickers hardness of a part of the second laminate, the part being in contact with the front end of the spacer, is from 11.8 to 35.9 inclusive.
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公开(公告)号:US20190162991A1
公开(公告)日:2019-05-30
申请号:US16097644
申请日:2017-03-21
Applicant: DAI NIPPON PRINTING CO., LTD.
Inventor: Yusuke HAGIWARA
IPC: G02F1/1334 , G02F1/1335 , G02F1/1347
Abstract: A light modulating device including: a light transmissive plate having a curved surface; a light modulating cell; and an optically transparent adhesive film which is disposed between the curved surface of the light transmissive plate and the light modulating cell and attaches one side of the light modulating cell to the curved surface of the light transmissive plate.
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公开(公告)号:US20190121186A1
公开(公告)日:2019-04-25
申请号:US16094330
申请日:2017-04-20
Applicant: DAI NIPPON PRINTING CO., LTD.
Inventor: Keisuke MIURA , Yusuke HAGIWARA , Tsubasa HONDA , Noriko KATASHIMA , Norio ISHII , Tomoya KAWASHIMA
IPC: G02F1/1339 , E06B3/66 , G02F1/1337
Abstract: The present invention further improves the reliability of a spacer in comparison to conventional ones. A light control film 10 which is obtained by sandwiching a liquid crystal layer 14 between first and second laminates 13, 12 that are provided with at least alignment layers 23A, 23B, and which controls light transmitted therethrough by controlling the alignment of liquid crystal molecules 14A in the liquid crystal layer 14 by driving electrodes 22B, 22A that are provided on the first and second laminates 13, 12. With respect to the first laminate 13, a base 21B that is formed of a transparent film material is provided with a spacer 24 that maintains the thickness of the liquid crystal layer 14. With respect to the first and second laminates 13, 12, the Vickers hardness Xs of the spacer 24 is from 16.9 to 40.2 (inclusive), and the Vickers hardness Xf of a part of the second laminate 12, said part being in contact with the front end of the spacer 24, is from 11.8 to 35.9 (inclusive).
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公开(公告)号:US20240319545A1
公开(公告)日:2024-09-26
申请号:US18672682
申请日:2024-05-23
Applicant: DAI NIPPON PRINTING CO., LTD.
Inventor: Norio ISHII , Keisuke MIURA , Yusuke HAGIWARA
IPC: G02F1/1339 , B32B3/08 , B32B17/10 , G02F1/1333 , G02F1/1335
CPC classification number: G02F1/13394 , B32B3/085 , B32B17/10005 , B32B17/10036 , B32B17/10293 , B32B17/10302 , B32B17/10348 , B32B17/10467 , B32B17/10504 , B32B17/10761 , B32B17/10788 , G02F1/133388 , G02F1/133512
Abstract: Provided are a laminated glass which has a reduced occurrence of voids and accumulation of liquid crystal, and a production method for the laminated glass. Also provided is a laminated glass which can prevent deterioration of a sealing material. This laminated glass 1 comprises a first glass plate 33A, a first intermediate film 31A, a liquid crystal film 10, a second intermediate film 31B, and a second glass plate, which are layered and disposed in this order, wherein the first glass plate 33A and the second glass plate 33B have a larger outer shape than that of the liquid crystal film 10, and a spacer 32 is provided in at least a portion of a region which is interposed between the first glass plate 33A and the second glass plate 33B and in which the liquid crystal film 10 is not disposed.
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公开(公告)号:US20240004231A1
公开(公告)日:2024-01-04
申请号:US18370449
申请日:2023-09-20
Applicant: DAI NIPPON PRINTING CO., LTD.
Inventor: Yusuke HAGIWARA
IPC: G02F1/1334 , G02F1/1335 , G02F1/13 , G02F1/1333 , G02F1/1347
CPC classification number: G02F1/1334 , G02F1/1335 , G02F1/13 , G02F1/1333 , G02F1/133528 , G02F1/13475 , G02F2413/00
Abstract: A light modulating device including: a light transmissive plate having a curved surface; a light modulating cell; and an optically transparent adhesive film which is disposed between the curved surface of the light transmissive plate and the light modulating cell and attaches one side of the light modulating cell to the curved surface of the light transmissive plate.
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