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公开(公告)号：EP4350428A1
公开(公告)日：2024-04-10
申请号：EP22816400.0
申请日：2022-05-27
发明人： KIM, Dong-Hwi , SONG, Seung-Won , AHN, Hong-Jun , OH, Pyoung-Yun , LEE, Yu-Jin
IPC分类号： G02F1/1337 , G02B5/30 , G02F1/1335 , G02F1/1343 , G02F1/1339
摘要： The present invention relates to a transmittance variable optical stack and a manufacturing method therefor, and a smart window comprising same and a vehicle to which the same is applied, the optical stack comprising polarizing plates stacked on both surfaces thereof with a liquid crystal layer, driven according to an electric field, interposed therebetween, wherein the polarizing plates comprise a polarizer and a protective layer formed on at least one surface of the polarizer, a transparent conductive layer is formed in direct contact with the polarizing plate, and the optical stack has a total light transmittance that changes according to the application of voltage.
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公开(公告)号：EP4432005A1
公开(公告)日：2024-09-18
申请号：EP22890319.1
申请日：2022-11-01
发明人： AHN, Hong-Jun , KIM, Dong-Hwi , OH, Pyoung-Yun , JUNG, Sung-Hoon
IPC分类号： G02F1/1335 , G02F1/1333
CPC分类号： G02F1/1333 , G02F1/1335
摘要： The present disclosure relates to a transmittance-variable optical laminate including a first polarizing plate, a first transparent conductive layer formed on a first surface of the first polarizing plate, a second polarizing plate arranged to be opposite the first polarizing plate, a second transparent conductive layer formed on a first surface of the second polarizing plate and arranged to be opposite the first transparent conductive layer, and a liquid crystal layer provided between the first transparent conductive layer and the second transparent conductive layer, in which at least one of the first and second transparent conductive layers is in direct contact with either the first polarizing plate or the second polarizing plate, and at least one of the first and second polarizing plates has a single transmittance color b* value of -6.0 to -3.0. The present disclosure relates to a method of manufacturing the transmittance-variable optical laminate, a smart window including the transmittance-variable optical laminate, and automotive and building windows using the transmittance-variable optical laminate.
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公开(公告)号：EP4424506A1
公开(公告)日：2024-09-04
申请号：EP22887426.9
申请日：2022-10-13
发明人： KIM, Dong-Hwi , AHN, Hong-Jun , OH, Pyoung-Yun
摘要： The present invention relates to a transmittance-variable optical laminate and a manufacturing method therefor, a smart window comprising same, and a door and window for an automobile and building employing same, the optical laminate comprising: a first polarizing plate having a first connection part; a first transparent conductive layer formed on one surface of the first polarizing plate; a second polarizing plate facing the first polarizing plate and having a second connection part; a second transparent conductive layer formed on one surface of the second polarizing plate; and a liquid crystal layer provided between the first transparent conductive layer and the second transparent conductive layer, wherein at least one transparent conductive layer from among the first transparent conductive layer and the second transparent conductive layer is formed to come into direct contact with any one polarizing plate from among the first polarizing plate and the second polarizing plate, and the first connection part and the second connection part protrude in the same outward direction.
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公开(公告)号：EP4411465A1
公开(公告)日：2024-08-07
申请号：EP22876736.4
申请日：2022-09-20
发明人： KIM, Sung-Su , BAEK, Sung-Ho , AHN, Hong-Jun , OH, Pyoung-Yun
IPC分类号： G02F1/1335 , G02F1/137 , G02F1/1337 , G02F1/139 , G02B5/30 , G02F1/1339 , E06B3/67 , B60J3/04
CPC分类号： B60J3/04 , E06B3/67 , G02B5/30 , G02F1/1335 , G02F1/1337 , G02F1/1339 , G02F1/137 , G02F1/139
摘要： The present invention relates to a transmittance-variable optical laminate, a method for manufacturing same, a smart window comprising same, and a vehicle and building window or door employing same, the optical laminate comprising: a first polarizing plate including a first polarizer and a polarization rotation layer; a first transparent conductive layer formed on one surface of the first polarizing plate; a second polarizing plate including a second polarizer and a retardation layer, and facing the first polarizing plate; a second transparent conductive layer formed on one surface of the second polarizing plate, and facing the first transparent conductive layer; and a liquid crystal layer provided between the first transparent conductive layer and the second transparent conductive layer, wherein at least one of the first transparent conductive layer and the second transparent conductive layer is formed to come into direct contact with any one of the first polarizing plate and the second polarizing plate, the polarization rotation layer has reverse wavelength or flat wavelength dispersion characteristics, and the retardation layer includes a negative C plate.
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公开(公告)号：EP4459365A1
公开(公告)日：2024-11-06
申请号：EP22916573.3
申请日：2022-12-16
发明人： KIM, Dong-Hwi , AHN, Hong-Jun , OH, Pyoung-Yun
摘要： The present invention relates to a variable transmittance optical laminate and a manufacturing method therefor, a smart window comprising same, and automobile and building window systems using same, the variable transmittance optical laminate comprising: a first laminate in which a first polarizing plate, a first transparent conductive layer, and a first alignment layer are sequentially laminated; a second laminate which faces the first laminate and in which a second polarizing plate, a second transparent conductive layer, and a second alignment layer are sequentially laminated; a liquid crystal layer disposed between the first laminate and the second laminate; and a sealant formed along the outer circumferential surface of the liquid crystal layer and sealing the liquid crystal layer, wherein at least one of the first transparent conductive layer or the second transparent conductive layer is in direct contact with one of the first polarizing plate or the second polarizing plate, the sealant includes a first region overlapping with at least one of the first alignment layer or the second alignment layer in a planar direction and a second region not overlapping with same, and the width of the first region is 5% to 70% of the sum of the width of the first region and the width of the second region.
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公开(公告)号：EP4411471A1
公开(公告)日：2024-08-07
申请号：EP22873151.9
申请日：2022-09-20
发明人： KIM, Sung-Su , AHN, Hong-Jun , OH, Pyoung-Yun , BAEK, Sung-Ho
IPC分类号： G02F1/137 , G02F1/1337 , G02B5/30
CPC分类号： G02F1/137 , G02B5/30 , G02F1/1337
摘要： The present invention relates to a variable transmittance optical laminate, a method for manufacturing same, a smart window comprising same, and vehicle and building windows and doors using same, the variable transmittance optical laminate comprising: a first polarizing plate including a first polarizer; a first transparent conductive layer formed on one surface of the first polarizing plate; a second polarizing plate which faces the first polarizing plate and includes a second polarizer; a second transparent conductive layer which is formed on one surface of the second polarizing plate and faces the first transparent conductive layer; and a liquid crystal layer provided between the first transparent conductive layer and the second transparent conductive layer, wherein at least one of the first polarizing plate or the second polarizing plate includes a retardation layer, the in-plane retardation value of the retardation layer is 230 nm to 280 nm, and the contained angle between the optical axis of the retardation layer and the alignment axis of the liquid crystal layer is 43° to 47°.
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