公开(公告)号：EP1273562A1

公开(公告)日：2003-01-08

申请号：EP02022912.6

申请日：1999-04-22

申请人： DAINIPPON INK AND CHEMICALS, INC.

发明人： Takehara, Sadao ,  Osawa, Masashi ,  Takatsu, Haruyoshi ,  Negishi, Makoto

IPC分类号： C07C25/22 ,  C09K19/32 ,  C07C25/24 ,  C07C43/225 ,  C07C43/257 ,  C07C255/50 ,  C07C17/26 ,  C07C17/354

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。 通过添加萘衍生物，可以使液晶组合物的阈值电压急剧降低，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，本发明的大部分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，包含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。

公开(公告)号：EP1205467A1

公开(公告)日：2002-05-15

申请号：EP01126494.2

申请日：2001-11-12

申请人： DAINIPPON INK AND CHEMICALS, INC.

发明人： Hasebe, Hiroshi ,  Takehara, Sadao ,  Takeuchi, Kiyofumi

IPC分类号： C07C69/88 ,  C09K19/20 ,  C09K19/38

CPC分类号： C09K19/38 ,  C09K19/2014 ,  C09K2019/0448

摘要： A polymerizable compound represented by formula (I):
wherein Q 1 and Q 2 each independently represent a hydrogen atom or a methyl group; p and q each independently represent an integer of 2 to 18; X 1 and X 2 each independently represent a single bond, -O-, -COO- or-OCO-; L 1 represents -COO- or -OCO-; L 2 represents-CH 2 CH 2 COO- or -CH 2 CH 2 OCO-; and Y 1 , Y 2 and Y 3 each independently represent a hydrogen atom, an alkyl group having 1 to 7 carbon atoms, an alkoxy group having 1 to 7 carbon atoms, an alkanoyl group having 2 to 7 carbon atoms, a cyano group or a halogen atom. Also disclosed are a polymerizable liquid crystal composition containing the compound, and an optically anisotropic medium produced from the composition.

摘要翻译： 由式（I）表示的可聚合化合物： worin Q <1>和Q <2>各自独立地表示氢原子或甲基; p和q各自代表unabhängig为2至18的整数; X <1>和X <2>每个unabhängig表示单键，-O - ， - COO-或-OCO-; →<1> darstellt -COO-或-OCO-; →<2> darstellt-CH2CH2COO-或-CH2CH2OCO-; 和Y <1>，Y <2>和Y <3>具有具有2至7个碳的烷酰基是1-7个碳原子的每个unabhängig表示氢原子的烷基，具有1至7个碳原子，以烷氧基 原子，氰基或卤原子。 所以盘游离缺失是由该组合物制备的聚合性液晶组合物含有该化合物，以及光学各向异性介质。

公开(公告)号：EP1201632A1

公开(公告)日：2002-05-02

申请号：EP99943249.5

申请日：1999-09-10

申请人： DAINIPPON INK AND CHEMICALS, INC.

发明人： Ogawa, Shinji ,  Kawara, Tatsuo ,  Takehara, Sadao ,  Ohnishi, Hiroyuki ,  Takeuchi, Kiyofumi ,  Takatsu, Haruyoshi ,  Grahe, Gerwald ,  Frings, Rainer Bruno ,  Fugger, Christine ,  Pithart, Cornelia

IPC分类号： C07C13/60 ,  C07C25/22 ,  C07C25/24 ,  C07C39/17 ,  C07C43/225 ,  C07C49/675 ,  C07C255/50 ,  C07C255/55 ,  C09K19/32 ,  C09K19/34 ,  G02F1/13

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）表示的新型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非常容易地制造，如实施例所示，显示出与当前通用主体液晶作为向列相的优异的相容性，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样的化合物，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，本发明的化合物是适用于需要宽的工作温度范围的各种液晶显示元件的非常有用的液晶材料。

公开(公告)号：EP0825176A1

公开(公告)日：1998-02-25

申请号：EP97114465.4

申请日：1997-08-21

申请人： DAINIPPON INK AND CHEMICALS, INC.

发明人： Takatsu, Haruyoshi ,  Takehara, Sadao ,  Takeuchi, Kiyofumi ,  Negishi, Makoto ,  Osawa, Norie ,  Osawa, Masashi ,  Ogawa, Shinji ,  Yanagihara, Hirokazu

IPC分类号： C07C251/24 ,  C09K19/24 ,  C09K19/30

CPC分类号： C09K19/42 ,  C07C251/88 ,  C07C2601/14 ,  C09K19/24 ,  C09K19/3086 ,  C09K19/46

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： 公开的是提供对吖嗪衍生物作为新型液晶化合物，一种用于在高的反应产率制备的非对称吖嗪类的含有副产物的极微量的新方法：如对称吖嗪类，向列型液晶组合物含有的 其表现出宽的驱动温度范围，并对于所需的高双折射率，液晶显示装置的优异的响应吖嗪衍生物：如TN-LCD，STN-LCD和TFT-LCD具有改善的电光学特性，包括该液晶组合物作为 的构成材料，以及一个光散射型液晶显示系统，同时保持和提高所需的显示属性表现出受抑制的记忆现象，在浊度为显示更高的均匀性和改善的显示特性和对温度变化的响应：如几乎切换时间 ，较低的电压驱动，高光控制层的电阻率和较高的反向 甚至在前述的光散射型液晶显示系统St比值。