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1. 发明授权

US07067179B1 Fused ring compound 失效
标题翻译：稠环化合物
公开(公告)号：US07067179B1
公开(公告)日：2006-06-27
申请号：US10030185
申请日：1999-09-10
申请人： Shinji Ogawa , Tatsuo Kawara , Sadao Takehara , Hiroyuki Ohnishi , Kiyofumi Takeuchi , Haruyoshi Takatsu , Gerwald Grahe , Rainer Bruno Frings , Christine Fugger , Cornelia Pithart
发明人： Shinji Ogawa , Tatsuo Kawara , Sadao Takehara , Hiroyuki Ohnishi , Kiyofumi Takeuchi , Haruyoshi Takatsu , Gerwald Grahe , Rainer Bruno Frings , Christine Fugger , Cornelia Pithart
IPC分类号： C09K19/32 , C09K19/30 , C07C13/60 , C07C25/22 , C07C23/44
CPC分类号： C07C255/55 , C07C22/08 , C07C25/18 , C07C25/22 , C07C25/24 , C07C49/675 , C07C49/697 , C07C255/50 , C09K19/0208 , C09K19/32 , C09K19/321 , C09K19/322 , C09K19/3483 , C09K2019/325 , C09K2019/326 , Y10T428/10
摘要： A novel compound represented by the general formula (I), and a nematic liquid crystal composition incorporating the same. A compound represented by the general formula (I) can be produced industrially extremely easily, as shown in the examples, displays superior compatibility with current general purpose host liquid crystals as a nematic phase, and also shows little crystal precipitation at low temperatures. Moreover, by addition of a small amount of such a compound to a host liquid crystal, the liquid crystal temperature range at low temperatures can be effectively widened without any significant worsening of the various characteristics of the liquid crystal material. Consequently, a compound of the present invention is an extremely useful liquid crystal material which is suitable for various liquid crystal display elements which require a broad operating temperature range.
摘要翻译：由通式（I）表示的新化合物和含有该化合物的向列型液晶组合物。由通式（I）表示的化合物可以在工业上极容易地制造，如实施例所示，显示出与当前通用主体液晶的相对优异的相向性，并且在低温下也显示出很小的晶体析出。此外，通过向主液晶中添加少量这种化合物，可以有效地加宽低温下的液晶温度范围，而不会使液晶材料的各种特性显着恶化。因此，本发明的化合物是非常有用的液晶材料，其适用于需要宽的工作温度范围的各种液晶显示元件。

2. 发明授权

US06913797B1 Decahydronaphthalene derivative 有权
标题翻译：十氢萘衍生物
公开(公告)号：US06913797B1
公开(公告)日：2005-07-05
申请号：US09763531
申请日：1999-08-23
申请人： Shinji Ogawa , Hiroyuki Ohnishi , Yutaka Nagashima , Sadao Takehara , Makoto Negishi , Haruyoshi Takatsu , Gerwald Grahe , Rainer Bruno Frings , Christine Fugger , Cornelia Pithart
发明人： Shinji Ogawa , Hiroyuki Ohnishi , Yutaka Nagashima , Sadao Takehara , Makoto Negishi , Haruyoshi Takatsu , Gerwald Grahe , Rainer Bruno Frings , Christine Fugger , Cornelia Pithart
IPC分类号： C07C13/50 , C07C17/00 , C07C17/12 , C07C17/26 , C07C17/354 , C07C22/08 , C07C25/22 , C07C25/24 , C07C45/00 , C07C45/62 , C07C45/69 , C07C47/277 , C07C47/47 , C07C255/49 , C07C255/50 , C07C255/55 , C09K19/32 , C09K19/34 , C07C43/225 , C07D317/72
CPC分类号： C09K19/322 , C07C13/50 , C07C17/00 , C07C17/12 , C07C17/263 , C07C17/2632 , C07C17/2635 , C07C17/354 , C07C22/08 , C07C25/22 , C07C25/24 , C07C45/00 , C07C45/62 , C07C45/69 , C07C47/277 , C07C47/47 , C07C255/49 , C07C255/50 , C07C255/55 , C07C2601/14 , C07C2602/28 , C09K2019/3004 , C09K2019/301 , C09K2019/3075 , C09K2019/326 , C09K2019/3408 , C09K2019/3425 , C09K2019/3433 , C09K2019/3438 , Y10T428/10 , C07C47/457 , C07C47/24 , C07C49/447 , C07C49/637
摘要： The present invention discloses a decahydronaphthalene derivative represented by general formula (I): a liquid crystal composition in which it is contained, and a liquid crystal device in which it is used. The novel decahydronaphthalene derivative of the present invention can be produced industrially extremely easily as shown in the examples, and by adding a small amount to a base liquid crystal, it is possible to have effects that expand the nematic phase temperature range, thereby improving its various characteristics as a nematic liquid crystal. Moreover, the novel decahydronaphthalene derivative of the present invention also has superior co-solubility with base liquid crystals generally used at present. Thus, it is suitable for various types of liquid crystal devices requiring a wide operating temperature range, and is extremely useful as a liquid crystal material.
摘要翻译：本发明公开了通式（I）表示的十氢萘衍生物：其中含有的液晶组合物及其使用的液晶装置。如实施例所示，本发明的新型十氢萘衍生物可以在工业上极容易地制造，通过少量添加到基体液晶中，可以具有使向列相温度范围扩大的效果，作为向列液晶的特性。此外，本发明的新型十氢萘衍生物与目前通常使用的基础液晶也具有优异的共溶性。因此，适用于需要宽工作温度范围的各种液晶装置，作为液晶材料是非常有用的。

3. 发明授权

US06746728B1 Compound having tetrahydronaphthalene skeleton and liquid crystal composition containing same 有权
标题翻译：具有四氢萘骨架的化合物和含有它们的液晶组合物
公开(公告)号：US06746728B1
公开(公告)日：2004-06-08
申请号：US09926838
申请日：2001-12-28
申请人： Tetsuo Kusumoto , Yoshitaka Saito , Makoto Negishi , Yutaka Nagashima , Sadao Takehara , Haruyoshi Takatsu , Gerwald Grahe , Rainer Bruno Frings , Cornelia Pithart
发明人： Tetsuo Kusumoto , Yoshitaka Saito , Makoto Negishi , Yutaka Nagashima , Sadao Takehara , Haruyoshi Takatsu , Gerwald Grahe , Rainer Bruno Frings , Cornelia Pithart
IPC分类号： C09K1932
CPC分类号： C07C255/50 , C07C255/52 , C07C2602/10 , C07D213/30 , C09K19/322 , C09K19/34 , C09K19/3452 , C09K19/3455 , C09K19/3458 , C09K2019/325 , C09K2019/3408 , Y10T428/10
摘要： A tetrahydronaphthalene derivative represented by the general formula (I) and a liquid crystal composition containing the same. A compound represented by the general formula (I) shows superior liquid crystallinity and co-solubility with conventional liquid crystal compounds and compositions. Furthermore, addition of such a compound enables the threshold voltage to be significantly reduced with almost no deleterious effect on the responsiveness. In addition, a compound of the present invention can also be easily produced industrially, is colorless, and is chemically stable. Consequently, liquid crystal compositions containing such a compound are extremely useful as liquid crystals, and are particularly suitable for liquid crystal displays requiring a wide operating temperature range, low voltage driving and a high response speed.
摘要翻译：由通式（I）表示的四氢萘衍生物和含有该四氢萘衍生物的液晶组合物。通式（I）表示的化合物与常规的液晶化合物和组合物显示出优异的液晶性和共溶性。此外，添加这种化合物使得能够显着降低阈值电压，对响应性几乎没有有害影响。此外，本发明的化合物也可以在工业上容易地制备，是无色的，并且是化学稳定的。因此，含有这种化合物的液晶组合物作为液晶非常有用，特别适用于需要宽工作温度范围，低电压驱动和高响应速度的液晶显示器。

4. 发明授权

US6010642A Azine derivative, process for the preparation thereof, nematic liquid crystal composition and liquid crystal display system comprising same 失效
标题翻译：吖嗪衍生物，其制备方法，向列型液晶组合物和包含其的液晶显示系统
公开(公告)号：US6010642A
公开(公告)日：2000-01-04
申请号：US916026
申请日：1997-08-21
申请人： Haruyoshi Takatsu , Sadao Takehara , Kiyofumi Takeuchi , Makoto Negishi , Norie Osawa , Masashi Osawa , Shinji Ogawa , Hirokazu Yanagihara
发明人： Haruyoshi Takatsu , Sadao Takehara , Kiyofumi Takeuchi , Makoto Negishi , Norie Osawa , Masashi Osawa , Shinji Ogawa , Hirokazu Yanagihara
IPC分类号： C07C251/88 , C09K19/24 , C09K19/30 , C09K19/42 , C09K19/46 , C09K19/06 , C09K19/12 , C09K19/20 , C09K19/34
CPC分类号： C09K19/42 , C07C251/88 , C09K19/24 , C09K19/3086 , C09K19/46 , C07C2101/14
摘要： Disclosed is to provide an azine derivative as a novel liquid crystal compound, a novel process for the preparation of an asymmetrical azine in a high reaction yield with an extremely small amount of by-products such as symmetrical azines, a nematic liquid crystal composition containing the azine derivative which exhibits a broad driving temperature range and an excellent response for the desired high birefringence index, a liquid crystal display device such as TN-LCD, STN-LCD and TFT-LCD having improved electro-optical properties comprising the liquid crystal composition as a constituent material, and a light-scattering type liquid crystal display system which exhibits a suppressed memory phenomenon, a higher uniformity in turbidity for display and improved display properties and response against temperature change while maintaining and improving the required display properties such as fast switching time, lower voltage driving, higher light-control layer resistivity and higher contrast ratio even in the foregoing light-scattering type liquid crystal display system.
摘要翻译：公开了提供作为新型液晶化合物的吖嗪衍生物，以极少量副产物如对称吖嗪制备具有高反应产率的不对称吖嗪的新方法，含有具有宽的驱动温度范围和对期望的高双折射率的优异响应的吖嗪衍生物，具有改进的电光学性能的诸如TN-LCD，STN-LCD和TFT-LCD的液晶显示装置，其包括液晶组合物作为构成材料和光散射型液晶显示系统，其具有抑制的记忆现象，更高的显示浊度均匀性和改进的显示特性以及对温度变化的响应，同时保持并改善所需的显示特性，如快速切换时间，低电压驱动，较高的光控层电阻率和较高的反射率即使在上述光散射型液晶显示系统中也是如此。

5. 发明授权

US06693223B1 Fluorine-substituted-4-alkenylbenzoic acid and derivatives thereof, and nematic liquid crystal composition containing cyanophenyl benzoate derivatives and liquid crystal display system using the same 有权
标题翻译：氟取代-4-链烯基苯甲酸及其衍生物，以及含有苯氰酸苯酯衍生物的向列型液晶组合物和使用其的液晶显示系统
公开(公告)号：US06693223B1
公开(公告)日：2004-02-17
申请号：US10373796
申请日：2003-02-27
申请人： Kiyofumi Takeuchi , Haruyoshi Takatsu , Sadao Takehara , Masashi Osawa
发明人： Kiyofumi Takeuchi , Haruyoshi Takatsu , Sadao Takehara , Masashi Osawa
IPC分类号： C07C2524
CPC分类号： C07C63/04 , C09K19/2007 , C09K19/46
摘要： A novel liquid crystal compound, a nematic liquid crystal composition, and a liquid crystal display system using the composition are disclosed herein. The liquid crystal compound is represented by the general formula (I): wherein R represents a hydrogen atom or a straight chain alkyl group having 1 to 7 carbon atoms and each of X, Y and Z independently represents hydrogen atom or fluorine atom. The nematic liquid crystal composition of the present invention can provide liquid crystal materials in response to desired purposes even by its addition in a small amount without spoiling other characteristics.
摘要翻译：本文公开了一种新型液晶化合物，向列型液晶组合物和使用该组合物的液晶显示系统。液晶化合物由通式（I）表示：其中R表示氢原子或具有1至7个碳原子的直链烷基，X，Y和Z各自独立地表示氢原子或氟原子。本发明的向列型液晶组合物可以通过少量添加而不损害其他特性而提供响应于期望目的的液晶材料。

6. 发明授权

US06287646B1 Fluorine-substituted-4-alkenylbenzoic acid and derivatives thereof, and nematic liquid crystal composition containing cyanophenyl benzoate derivatives and liquid crystal display system using the same 有权
标题翻译：氟取代-4-链烯基苯甲酸及其衍生物，以及含有苯氰酸苯酯衍生物的向列型液晶组合物和使用其的液晶显示系统
公开(公告)号：US06287646B1
公开(公告)日：2001-09-11
申请号：US09200848
申请日：1998-11-30
申请人： Kiyofumi Takeuchi , Haruyoshi Takatsu , Sadao Takehara , Masashi Osawa
发明人： Kiyofumi Takeuchi , Haruyoshi Takatsu , Sadao Takehara , Masashi Osawa
IPC分类号： C09K1920
CPC分类号： C09K19/2007 , C07C63/04 , C09K19/46 , Y10T428/10
摘要： A novel liquid crystal compound, a nematic liquid crystal composition, and a liquid crystal display system using the composition are disclosed herein. The liquid crystal compound is represented by the general formula (I): wherein R represents a hydrogen atom or a straight chain alkyl group having 1 to 7 carbon atoms and each of X, Y and Z independently represents hydrogen atom or fluorine atom. The nematic liquid crystal composition of the present invention can provide liquid crystal materials in response to desired purposes even by its addition in a small amount without spoiling other characteristics.
摘要翻译：本文公开了一种新型液晶化合物，向列型液晶组合物和使用该组合物的液晶显示系统。液晶化合物由通式（I）表示：其中R表示氢原子或具有1至7个碳原子的直链烷基，X，Y和Z各自独立地表示氢原子或氟原子。本发明的向列型液晶组合物可以通过少量添加而不损害其他特性而提供响应于期望目的的液晶材料。

7. 发明授权

US5536443A Cyclic hydrocarbon derivative and liquid crystal composition containing the same 失效
标题翻译：环状烃衍生物和含有它们的液晶组合物
公开(公告)号：US5536443A
公开(公告)日：1996-07-16
申请号：US429485
申请日：1995-04-25
申请人： Haruyoshi Takatsu , Sadao Takehara , Kiyohumi Takeuchi , Masashi Osawa , Shinji Ogawa , Norie Ishida
发明人： Haruyoshi Takatsu , Sadao Takehara , Kiyohumi Takeuchi , Masashi Osawa , Shinji Ogawa , Norie Ishida
IPC分类号： C07B59/00 , C07C69/773 , C07C255/50 , C07C255/55 , C09K19/30 , C09K19/40 , C09K19/42 , G02F1/13
CPC分类号： C09K19/402 , C07B59/001 , C07C255/50 , C07C255/55 , C09K19/3001 , C09K19/3003 , C09K19/3028 , C09K19/3059 , C07C2101/14 , C09K2019/0444
摘要： A liquid crystal display comprising a compound of the formula ##STR1## wherein each of Y.sup.1 and Y.sup.2 is independently F, Cl, CN, OCN, SCN, OCF.sub.3, OCF.sub.2 H, OCF.sub.2 CF.sub.3, CF.sub.3, R, --OR, --COOR or --OCOR, wherein R is alkyl, alkenyl or alkoxyalkyl, provided that at least one of Y.sup.1 and Y.sup.2 is R, --OR, --COOR or --OCOR; each of Z, Z.sup.1, Z.sup.2, Z.sup.3 and Z.sup.4 is independently a single bond. CH.sub.2 CH.sub.2 --, --CH.dbd.CH--, --C.dbd.C--, --COO--, --OCO--, --CH.sub.2 O--, OCH.sub.2 --, --(CH.sub.2).sub.4 --, --(CH.sub.2).sub.3 --O-- or --O--(CH.sub.2).sub.3 --: ring A is a group of formula (II): ##STR2## wherein each of X.sup.1, X.sup.2, X.sup.3, X.sup.4, X.sup.5, X.sup.6, X.sup.7, X.sup.8, X.sup.9, and X.sup.10 is independently H or D, provided that at least one of them is D; each of rings K, L, J, M and N is independently trans-1,4-cyclohexylene, 1,4-cyclohexenylene, substituted trans-1,4-cyclohexylene, 1,4-phenylene, substituted 1,4-phenylene, 1,3-dioxane-2,6-diyl, pyrimidine-2,5-diyl, pyridine-2,5-diyl, pyrazine-2,5-diyl or a group of formula (III): ##STR3## wherein each of X.sup.11, X.sup.12, X.sup.13, X.sup.14, X.sup.15, X.sup.16, X.sup.17, X.sup.18, X.sup.19, and X.sup.20 is independently H or D, provided that at least one of them is D; in which the ring of formula (III) may be the same as or different from ring A; and k, l, m, and n each independently is 0 or 1, provided that the sum of k, l, m, and n is 0, 1 or 2. The compound is useful as an electro-optic liquid crystal display material.
摘要翻译：其中Y1和Y2各自独立地为F，Cl，CN，OCN，SCN，OCF3，OCF2H，OCF2CF3，CF3，R，-OR， -COOR或-OCOR，其中R是烷基，烯基或烷氧基烷基，条件是Y1和Y2中的至少一个是R，-OR，-COOR或-OCOR; Z，Z1，Z2，Z3和Z4各自独立地为单键。 CH 2 CH 2 - ， - CH = CH - ， - C = C - ， - COO-， - OCO-， - CH 2 O - ，OCH 2 - ， - （CH 2）4 - ， - （CH 2）3 -O-或-O- CH 2）3 - ：环A是式（II）的基团：其中X1，X2，X3，X4，X5，X6，X7，X8，X9和X10各自独立地为H或D ，条件是其中至少有一个是D; 环K，L，J，M和N各自独立地为反式-1,4-亚环己基，1,4-亚环己烯基，取代的反式-1,4-亚环己基，1,4-亚苯基，取代的1,4-亚苯基，（III）所示的基团：式（III）的化合物：其中R 1，R 2，R 3，R 3，其中X11，X12，X13，X14，X15，X16，X17，X18，X19和X20各自独立地为H或D，条件是它们中的至少一个为D; 其中式（III）的环可以与环A相同或不同; 并且k，l，m和n各自独立地为0或1，条件是k，l，m和n的和为0,1或2.该化合物可用作电光液晶显示材料。

8. 发明授权

US5474707A Cyclic hydrocarbon derivative and liquid crystal composition containing the same 失效
标题翻译：环状烃衍生物和含有它们的液晶组合物
公开(公告)号：US5474707A
公开(公告)日：1995-12-12
申请号：US278260
申请日：1994-07-21
申请人： Haruyoshi Takatsu , Sadao Takehara , Kiyohumi Takeuchi , Masashi Osawa , Shinji Ogawa , Norie Ishida
发明人： Haruyoshi Takatsu , Sadao Takehara , Kiyohumi Takeuchi , Masashi Osawa , Shinji Ogawa , Norie Ishida
IPC分类号： C07B59/00 , C07C69/773 , C07C255/50 , C07C255/55 , C09K19/30 , C09K19/40 , C09K19/42 , G02F1/13 , C07C19/08 , C09K19/12 , C09K19/34
CPC分类号： C09K19/402 , C07B59/001 , C07C255/50 , C07C255/55 , C09K19/3001 , C09K19/3003 , C09K19/3028 , C09K19/3059 , C07C2101/14 , C09K2019/0444
摘要： A cyclic hydrocarbon derivative represented by formula (I): ##STR1## wherein each of Y.sup.1 and Y.sup.2 is independently F, Cl, CN, OCN, SCN, OCF.sub.3, OCF.sub.2 H, OCF.sub.2 CF.sub.3, CF.sub.3, R, --OR, --COOR or --OCOR, wherein R is alkyl, alkenyl or alkoxyalkyl, provided that at least one of Y.sup.1 and Y.sup.2 is R, --OR, --COOR or --OCOR; each of Z, Z.sup.1, Z.sup.2, Z.sup.3 and Z.sup.4 is independently a single bond, --CH.sub.2 CH.sub.2 --, --CH.dbd.CH--, --C.tbd.C--, --COO--, --OCO--, --CH.sub.2 O--, OCH.sub.2 --, --(CH.sub.2).sub.4 --, --(CH.sub.2).sub.3 --O-- or --O--(CH.sub.2).sub.3 --; ring A is group of formula (II): ##STR2## wherein each of X.sup.1, X.sup.2, X.sup.3, X.sup.4, X.sup.5, X.sup.6, X.sup.7, X.sup.8, X.sup.9, and X.sup.10 is independently H or D, provided that at least one of them is D; each of rings K, L, J, M and N is independently trans-1,4-cyclohexylene, 1,4-cyclohexenylene, substituted trans-1,4-cyclohexylene, 1,4-phenylene, substituted 1,4-phenylene, 1,3-dioxane-2,6-diyl, pyrimidine-2,5-diyl, pyridine-2,5-diyl, pyarazine-2,5-diyl or a group of formula (III): ##STR3## wherein each of X.sup.11, X.sup.12, X.sup.13, X.sup.14, X.sup.15, X.sup.16, X.sup.17, X.sup.18, X.sup.19, and X.sup.20 is independently H or D, provided that at least one of them is D; in which the ring of formula (III) may be the same as or different from ring A; and k, l, m, and n each independently is 0 or 1, provided that the sum of k, l, m, and n is 0, 1 or 2. The compound is useful as an electro-optic liquid crystal display material.
摘要翻译：由式（I）表示的环状烃衍生物：其中Y1和Y2各自独立地为F，Cl，CN，OCN，SCN，OCF3，OCF2H，OCF2CF3，CF3，R，-OR -COOR或-OCOR，其中R是烷基，烯基或烷氧基烷基，条件是Y1和Y2中的至少一个是R，-OR，-COOR或-OCOR; Z，Z 1，Z 2，Z 3和Z 4各自独立地为单键，-CH 2 CH 2 - ， - CH = CH - ， - C 3BOND C - ， - COO - ， - OCO-， - CH 2 O-，OCH 2 - CH2）4-， - （CH2）3-O-或-O-（CH2）3-; 环A是式（II）的基团：其中X 1，X 2，X 3，X 4，X 5，X 6，X 7，X 8，X 9和X 10各自独立地为H或D，条件是至少一个他们是D 环K，L，J，M和N各自独立地为反式-1,4-亚环己基，1,4-亚环己烯基，取代的反式-1,4-亚环己基，1,4-亚苯基，取代的1,4-亚苯基，（III）的基团：式（III）的化合物：其中R 1，R 2，R 3，R 3，其中X11，X12，X13，X14，X15，X16，X17，X18，X19和X20各自独立地为H或D，条件是它们中的至少一个为D; 其中式（III）的环可以与环A相同或不同; 并且k，l，m和n各自独立地为0或1，条件是k，l，m和n的和为0,1或2.该化合物可用作电光液晶显示材料。

9. 发明授权

US06468607B1 Naphthalene derivative and liquid crystal composition comprising the same 有权
标题翻译：萘衍生物和包含它们的液晶组合物
公开(公告)号：US06468607B1
公开(公告)日：2002-10-22
申请号：US09296550
申请日：1999-04-22
申请人： Sadao Takehara , Masashi Osawa , Haruyoshi Takatsu , Makoto Negishi
发明人： Sadao Takehara , Masashi Osawa , Haruyoshi Takatsu , Makoto Negishi
IPC分类号： C09K1932
CPC分类号： C07C17/2637 , C07C17/263 , C07C17/2632 , C07C17/2635 , C07C17/269 , C07C17/354 , C07C25/18 , C07C25/22 , C07C25/24 , C07C255/50 , C07C2601/14 , C07C2602/28 , C09K19/322 , Y10T428/10
摘要： Disclosed is a novel liquid-crystalline compound which is a naphthalene derivative useful as an electro-optical liquid crystal display material, a liquid crystal composition containing such naphthalene derivatives and a liquid crystal display device comprising the same. The naphthalene derivative provided by the present invention exhibits an excellent liquid-crystallinity and miscibility with currently widely used liquid crystal compositions or compositions. The addition of the naphthalene derivative makes it possible to drastically lower the threshold voltage of the liquid crystal composition while maintaining its high response. The naphthalene derivative of the present invention is characterized by a large birefringence index. Further, most of the naphthalene derivative of the present invention has no strongly polar group in its molecule and thus can also be used for active matrix driving. Moreover, as shown in the foregoing examples, the naphthalene derivative of the present invention can be easily produced and is colorless and chemically stable. Accordingly, the liquid crystal composition comprising the naphthalene derivative of the present invention is extremely useful as a practical liquid crystal composition, particularly a liquid crystal composition which can operate within a wide temperature range and requires a high speed response and a low voltage driving.
摘要翻译：公开了一种新颖的液晶化合物，它是一种可用作电光液晶显示材料的萘衍生物，含有该衍生物的液晶组合物和包含该衍生物的液晶显示装置。由本发明提供的萘衍生物与当前广泛使用的液晶组合物或组合物显示出优异的液晶性和混溶性。通过加入萘衍生物可以使液晶组合物的阈值电压大大降低，同时保持其高响应性。本发明的萘衍生物的特征在于双折射率大。此外，本发明的大多数萘衍生物在其分子中没有强极性基团，因此也可用于有源矩阵驱动。此外，如前述实施例所示，本发明的萘衍生物可以容易地制备，并且是无色和化学稳定的。因此，含有本发明的萘衍生物的液晶组合物作为实用的液晶组合物，特别是能够在宽温度范围内工作并需要高速响应和低电压驱动的液晶组合物是非常有用的。

10. 发明授权

US07145047B2 Naphthalene derivative and liquid crystal composition comprising the same 有权
公开(公告)号：US07145047B2
公开(公告)日：2006-12-05
申请号：US10224424
申请日：2002-08-21
申请人： Sadao Takehara , Masashi Osawa , Haruyoshi Takatsu , Makoto Negishi
发明人： Sadao Takehara , Masashi Osawa , Haruyoshi Takatsu , Makoto Negishi
IPC分类号： C07C23/18 , C07C23/36 , C09K19/32
CPC分类号： C07C17/2637 , C07C17/263 , C07C17/2632 , C07C17/2635 , C07C17/269 , C07C17/354 , C07C25/18 , C07C25/22 , C07C25/24 , C07C255/50 , C07C2601/14 , C07C2602/28 , C09K19/322 , Y10T428/10
摘要： Disclosed in a novel liquid-crystalline compound which is a naphthalene derivative useful as an electro-optical liquid crystal display material, a liquid crystal composition containing such naphthalene derivatives and a liquid crystal display device comprising the same. The naphthalene derivative provided by the present invention exhibits an excellent liquid-crystallinity and miscibility with currently widely used liquid crystal compositions or compositions. The addition of the naphthalene derivative makes it possible to drastically lower the threshold voltage of the liquid crystal composition while maintaining its high response. The naphthalene derivative of the present invention is characterized by a large birefringence index. Further, most of the naphthalene derivative of the present invention has no strongly polar group in its molecule and thus can also be used for active matrix driving. Moreover, as shown in the foregoing examples, the naphthalene derivative of the present invention can be easily produced and is colorless and chemically stable. Accordingly, the liquid crystal composition comprising the naphthalene derivative of the present invention is extremely useful as a practical liquid crystal composition, particularly a liquid crystal composition which can operate within a wide temperature range and requires a high speed response and a low voltage driving.

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