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公开(公告)号：EP3408350A1
公开(公告)日：2018-12-05
申请号：EP16820168.9
申请日：2016-12-30
申请人： Merck Patent GmbH
发明人： WITTEK, Michael , KLASS, Dagmar
CPC分类号： C09K19/321 , C09K19/3066 , C09K2019/0466 , C09K2019/3422 , C09K2219/00
摘要： The invention relates to a liquid-crystalline medium comprising one or more compounds of formula BO, wherein the parameters have the meaning indicated in claim 1. The invention also relates to the use of the liquid-crystalline medium for electro-optical purposes, in particular in liquid crystal light valves for lighting devices for motor vehicles, to liquid crystal light valves containing said medium, and to lighting devices for motor vehicles, comprising liquid crystal light valves of said type, and to compounds of formula BO.
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公开(公告)号：EP3072945B1
公开(公告)日：2018-11-28
申请号：EP14862070.1
申请日：2014-10-08
IPC分类号： C09K19/30 , C09K19/12 , C09K19/14 , C09K19/20 , C09K19/34 , C09K19/42 , G02F1/13 , C09K19/04 , C09K19/02
CPC分类号： C09K19/3402 , C09K19/0208 , C09K19/0216 , C09K19/20 , C09K19/3003 , C09K19/3066 , C09K19/3068 , C09K2019/0444 , C09K2019/0466 , C09K2019/3016 , C09K2019/3077 , C09K2019/3078 , C09K2019/3083 , C09K2019/3422 , C09K2019/3425
摘要： To provide a liquid crystal composition having a suitable balance regarding at least one or two of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature thereof, small viscosity, suitable optical anisotropy, large positive dielectric anisotropy, large dielectric constant in a minor axis direction of the liquid crystal molecules, large specific resistance, high stability to ultraviolet light and heat; and an AM device including the composition and having a short response time, a large voltage holding ratio, a large contrast ratio or a long service life. The liquid crystal composition contains a specific compound having high maximum temperature and low minimum temperature as a first component, and the composition may contain a specific compound having large positive dielectric anisotropy as a second component, a specific compound having high maximum temperature or small viscosity as a third component, a specific compound having large positive dielectric anisotropy as a fourth component, or a specific compound having negative dielectric anisotropy as a fifth component.
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公开(公告)号：EP2871225B1
公开(公告)日：2018-10-10
申请号：EP13813050.5
申请日：2013-04-25
IPC分类号： C09K19/42 , C09K19/12 , C09K19/20 , C09K19/30 , C09K19/34 , C09K19/38 , G02F1/13 , G02F1/1337 , C09K19/32 , C09K19/04
CPC分类号： C09K19/3402 , C09K19/12 , C09K19/3001 , C09K19/3066 , C09K19/32 , C09K19/3852 , C09K2019/0411 , C09K2019/0448 , C09K2019/122 , C09K2019/123 , C09K2019/3009 , C09K2019/301 , C09K2019/3016 , C09K2019/3027 , C09K2019/3036 , C09K2019/3037 , C09K2019/3422 , C09K2019/3425 , Y10T428/1005
摘要： Subjec t The subject is to provide a liquid crystal composition that includes a polymerizable compound and satisfies at least one of characteristics such as a high maximum temperature, a low minimum temperature, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy and a large specific resistance; and a AM device that has characteristics such as a small rate of screen burn-in, a short response time, a low threshold voltage, a large voltage holding ratio, a large contrast ratio and a long service life. Means for Solving the Subject The means are a liquid crystal composition including the compound (1) and the compound (2), and a liquid crystal display device containing the composition: wherein P 1 and P 2 are polymerizable group; the rings A, B, C and E are 1,4-cyclohexylene, 1,4-phenylene and so forth; the ring D is 2,3-difluoro-1,4-phenylene and so forth; Z 1 and Z 2 are alkylene and so forth; L 1 , Z 3 and Z 4 are a single bond and so forth; R 1 and R 2 are alkyl and so forth; and q, r and s are 1 and so forth.
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公开(公告)号：EP3368636A1
公开(公告)日：2018-09-05
申请号：EP16777532.9
申请日：2016-10-05
申请人： Merck Patent GmbH
发明人： WITTEK, Michael , KLASS, Dagmar
CPC分类号： C09K19/3003 , C09K19/3066 , C09K19/3444 , C09K19/3458 , C09K2019/0466 , C09K2019/301 , C09K2019/3012 , C09K2019/3016 , C09K2019/3019 , C09K2019/3021 , C09K2019/3025 , C09K2019/3037 , C09K2019/3039 , C09K2019/304 , C09K2019/3042 , C09K2019/3422 , F21S41/645 , G02F2001/13706
摘要： The invention relates to a liquid crystal medium on the basis of a mixture of polar compounds having a positive dielectric anisotropy, characterized in that the medium contains one or more compounds of formula I at a total concentration of ≥ 40%, where the parameters have the meanings indicated in claim 1. The invention also relates to the use of the liquid crystal medium for electro-optical purposes, in particular in liquid crystal light valves for lighting devices for motor vehicles, to liquid crystal light valves containing said medium, and to lighting devices for motor vehicles, comprising liquid crystal light valves of said type.
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公开(公告)号：EP3015534B1
公开(公告)日：2018-08-22
申请号：EP14817392.5
申请日：2014-06-09
IPC分类号： C09K19/54 , C07D211/46 , C09K19/12 , C09K19/14 , C09K19/20 , C09K19/30 , C09K19/32 , C09K19/34 , G02F1/13 , C09K19/04
CPC分类号： C07D211/46 , C09K19/3066 , C09K19/3402 , C09K19/3483 , C09K19/54 , C09K2019/0411 , C09K2019/122 , C09K2019/123 , C09K2019/301 , C09K2019/3027 , C09K2019/3037 , C09K2019/3422 , C09K2019/3425
摘要： To provide a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or is to provide a liquid crystal composition having a suitable balance regarding at least two of the characteristics. The invention is also to provide an AM device having characteristics such as a short response time, a large voltage holding ratio, a low threshold voltage, a large contrast ratio and a long service life. The liquid crystal composition contains a compound contributing to the high stability to heat or ultraviolet light, and has a negative dielectric anisotropy and a nematic phase. The composition contains a specific compound having a large negative dielectric anisotropy as a first component, and may contain a specific compound having the high maximum temperature or the small viscosity as a second component.
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公开(公告)号：EP3355107A1
公开(公告)日：2018-08-01
申请号：EP16848497.0
申请日：2016-09-07
CPC分类号： C09K19/542 , C09K19/12 , C09K19/30 , C09K19/3003 , C09K19/3066 , C09K19/32 , C09K19/34 , C09K19/3402 , C09K19/38 , C09K19/56 , C09K2019/3004 , C09K2019/3009 , C09K2019/301 , C09K2019/3016 , C09K2019/3422 , C09K2019/3425 , C09K2019/548 , G02F1/13 , G02F1/1337 , G02F1/133723 , G02F1/137 , G02F2001/13712 , G02F2001/13775
摘要： Provided is a liquid crystal display device having characteristics such as a short response time, a large voltage holding ratio, low threshold voltage, a large contrast ratio and a long service life. A polymer sustained alignment mode liquid crystal display device includes an electrode group formed on one or both of a pair of substrates arranged with facing each other, a plurality of active devices connected to the electrode group, liquid crystal alignment films formed on surfaces facing each other of the pair of substrates, respectively, and a liquid crystal composition interposed between the pair of substrates, in which the liquid crystal alignment film contains at least one polymer selected from polyorganosiloxane, polyamic acid, polyamic acid ester and polyimide, and the liquid crystal composition contains a specific compound having negative dielectric anisotropy as a first component.
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公开(公告)号：EP2993516B1
公开(公告)日：2018-08-01
申请号：EP13897656.8
申请日：2013-11-13
申请人： DIC Corporation
IPC分类号： G02F1/1339 , C09K19/20 , C09K19/30 , C09K19/38 , C09K19/42 , C09K19/44 , G02F1/13 , C09K19/54 , C09K19/04 , C09K19/12 , C09K19/34
CPC分类号： C09K19/3066 , C09K19/20 , C09K19/42 , C09K19/44 , C09K19/542 , C09K2019/0448 , C09K2019/0466 , C09K2019/122 , C09K2019/123 , C09K2019/124 , C09K2019/3004 , C09K2019/3009 , C09K2019/301 , C09K2019/3016 , C09K2019/3019 , C09K2019/3025 , C09K2019/3422 , C09K2019/548 , G02F1/1339
摘要： The present invention relates to a liquid crystal display device including a specific liquid crystal composition and a sealant containing the cured product of a specific curable resin composition. The present invention provides a liquid crystal display device which prevents a decrease in the voltage holding ratio (VHR) of the liquid crystal layer and an increase in ion density (ID) and which enables elimination of problematic defective display such as voids, uneven alignment, and screen burn-in. Since the liquid crystal display device of the present invention prevents a decrease in the voltage holding ratio (VHR) of the liquid crystal layer and enables a reduction in defective display such as uneven alignment and screen burn-in, it is particularly useful for active-matrix liquid crystal display devices of an IPS mode and FFS mode and can be applied to liquid crystal display apparatuses such as liquid crystal TVs, monitors, mobile phones, and smartphones.
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公开(公告)号：EP3328963A1
公开(公告)日：2018-06-06
申请号：EP16753821.4
申请日：2016-07-12
申请人： Merck Patent GmbH
发明人： WITTEK, Michael , BREMER, Mathias , PLUMMER, Edward , FISCHER, Mila , LANNERT, Harald , MEYER, Volker
IPC分类号： C09K19/02 , C09K19/20 , C09K19/54 , G02F1/00 , C09K19/14 , C09K19/12 , C09K19/34 , C09K19/04
CPC分类号： C09K19/54 , C09K19/0275 , C09K19/12 , C09K19/20 , C09K19/34 , C09K2019/0448 , C09K2019/0466 , C09K2019/123 , C09K2019/3422 , C09K2019/548 , G02F1/00
摘要： The present invention relates to mesogenic media and to electro-optical displays comprising these media as light modulation media. In particular, the electro-optical displays according to the present invention are displays, which are operated at a temperature, at which the mesogenic modulation media are in an optically isotropic phase, preferably in a blue phase.
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公开(公告)号：EP2578664B1
公开(公告)日：2018-04-25
申请号：EP11789896.5
申请日：2011-06-02
IPC分类号： C09K19/42 , C09K19/12 , C09K19/14 , C09K19/20 , C09K19/30 , C09K19/34 , G02F1/13 , G02F1/00 , G02F1/137
CPC分类号： C09K19/42 , C09K19/12 , C09K19/3402 , C09K2019/122 , C09K2019/3009 , C09K2019/301 , C09K2019/3021 , C09K2019/3027 , C09K2019/3037 , C09K2019/3422 , C09K2019/3425 , G02F1/0045 , G02F2001/13712 , Y10T428/10 , Y10T428/1036
摘要： To provide a liquid crystal composition having a suitable balance regarding at least one or two of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature thereof, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy, a large specific resistance and a high stability to ultraviolet light and heat, and an AM device having a short response time, a large voltage holding ratio and contrast ratio, a long service life and so forth; the liquid crystal composition has a negative dielectric anisotropy, and contains a specific bicyclic compound having a large optical anisotropy and negative dielectric anisotropy as a first component and a specific tricyclic compound having a large dielectric anisotropy as a second component, and may contain a specific compound having a small viscosity as a third component, a specific compound having a large dielectric anisotropy and a small viscosity as a fourth component and a specific compound having a large dielectric anisotropy as a fifth component, and the liquid crystal display device includes the composition.
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公开(公告)号：EP3292181A1
公开(公告)日：2018-03-14
申请号：EP16715455.8
申请日：2016-04-08
申请人： Merck Patent GmbH
CPC分类号： C09K19/3402 , C07C69/587 , C07C69/602 , C07C69/80 , C07C2601/14 , C07D311/16 , C07D311/30 , C07H15/10 , C09K19/0208 , C09K19/062 , C09K19/067 , C09K19/3003 , C09K19/3066 , C09K19/542 , C09K2019/0466 , C09K2019/122 , C09K2019/123 , C09K2019/124 , C09K2019/3004 , C09K2019/3009 , C09K2019/301 , C09K2019/3012 , C09K2019/3019 , C09K2019/3025 , C09K2019/3042 , C09K2019/3422 , C09K2019/548 , G02F1/13725 , G02F2001/13706 , G02F2001/13775
摘要： The invention relates to a liquid-crystal medium which contains at least one compound of the formula (I), wherein R
1 and R
1 * independently of each other represent an alkyl or alkoxy group with 1 to 15 C atoms, wherein in said groups, one or more CH2 groups independently of one another can be replaced with (II), -CF
2 O-, -CH=CH-, (III), -O-, -CO-O-, -O-CO- such that O atoms are not directly linked to one another, and wherein one or more H atoms can be replaced with halogen, and A
1 represents (IV), (V) or (VI), and L1 represents F, Cl, CF
3 , OCF
3 or CHF
2 . The invention also relates to the use of said liquid-crystal medium for electrooptic purposes, particularly for shutter glasses, 3D applications, in TN-, PS-TN-, STN-, TN-TFT-, OCB-, IPS-, PS-IPS-, FFS-, PS-FFS- and PS-VA-IPS displays.
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