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    • 2. 发明申请
    • ANTI-FERROELECTRIC LIQUID CRYSTAL CELL
    • 反电解液晶电池
    • WO98042801A1
    • 1998-10-01
    • PCT/JP1998/001195
    • 1998-03-19
    • C09K19/02C09K19/20G02F1/133G02F1/141G02F1/137
    • C09K19/0266C09K19/2021G02F1/13306G02F1/141G02F2001/1412
    • An anti-ferroelectric liquid crystal cell which has characteristics of high-speed response and broad visual field angle and generates no image persistence. This anti-ferroelectric liquid crystal cell is constituted by an anti-ferroelectric liquid crystal material narrowly held between a pair of parallel substrates. The anti-ferroelectric liquid crystal material injected between the parallel substrates has such a characteristic that when a sine voltage value obtained by changing a reference frequency is applied to the anti-ferroelectric liquid crystal cell, an imaginary part of a complex dielectric constant obtained by carrying out Fourier transform of an output voltage value outputted from the anti-ferroelectric liquid crystal cell has no maximum value within a range of reference frequency of 100 Hz to 5 kHz. In other words, this characteristic is equivalent to such a characteristic that when a real part and an imaginary part of the complex dielectric constant are plotted by Cole-Cole plot for every frequency, a curve having no maximum value within the range of reference frequency of 100 Hz to 5kHz is obtained.
    • 具有高速响应和宽视场角特性的反铁电液晶单元,不产生图像持久性。 该反铁电液晶单元由狭窄地保持在一对平行基板之间的反铁电液晶材料构成。 注入在平行基板之间的反铁电液晶材料具有这样的特征:当通过改变参考频率获得的正弦电压值被施加到反铁电液晶单元时,通过携带的复数介电常数的虚部 从反铁电液晶单元输出的输出电压值的傅里叶变换在100Hz〜5kHz的基准频率的范围内没有最大值。 换句话说,该特性等同于当通过Cole-Cole绘图对每个频率绘制复数介电常数的实部和虚部时,在基准频率范围内没有最大值的曲线 获得100Hz至5kHz。
    • 3. 发明申请
    • ELECTRO-OPTICAL DEVICES FROM BANANA-SHAPED LIQUID CRYSTALS
    • 来自香蕉形液晶的电光装置
    • WO0234861A2
    • 2002-05-02
    • PCT/US0148021
    • 2001-10-26
    • UNIV KENT STATE OHIOJAKLI ANTALCHIEN LIANG CHYKRUERKE DANIELSAWADE HANSHEPPKE GERD
    • JAKLI ANTALCHIEN LIANG-CHYKRUERKE DANIELSAWADE HANSHEPPKE GERD
    • C09K19/02C09K19/20C09K19/22
    • C09K19/0266C09K19/02C09K19/0225C09K19/2007C09K19/22C09K2019/0481
    • A liquid crystal device comprising tilted smectic phases of banana-shaped liquid crystal molecules is disclosed. A method for fabricating a light modulating device is also disclosed. The method comprises the steps of providing a pair of substrates with a cell gap therebetween and permanently disposing at least one banana-shaped liquid crystal material into said cell gap. The present invention also provides a method of generating an image, comprising providing a pair of substrates with a cell gap therebetween, providing transparent electrodes on each of the substrates adjacent to the cell gap, disposing at least one banana-shaped liquid crystal material into the cell gap; and applying an electric field across the electrodes. The tilted smectic phases of banana-shaped liquid crystal may be in either a racemic or a chiral state. The application of a sufficiently high electric field transitions the banana-shaped liquid crystal material between the racemic and chiral states, and both the racemic and the chiral states are stable in the absence of an electric field.
    • 公开了一种包含香蕉形液晶分子的倾斜近晶相的液晶装置。 还公开了一种用于制造光调制装置的方法。 该方法包括以下步骤:提供其间具有单元间隙的一对基板,并将至少一种香蕉形液晶材料永久地置于所述单元间隙中。 本发明还提供了一种产生图像的方法,该方法包括提供其间具有单元间隙的一对衬底,在与单元间隙相邻的每个衬底上提供透明电极,将至少一种香蕉形液晶材料置于 细胞间隙; 并在电极上施加电场。 香蕉形液晶的倾斜近晶相可以是外消旋或手性状态。 足够高的电场的施加使香蕉形液晶材料在外消旋状态和手性状态之间转变,并且在没有电场的情况下外消旋状态和手性状态都稳定。
    • 4. 发明申请
    • TRISTABLE LIQUID CRYSTAL DISPLAY DEVICE
    • 可弯曲液晶显示装置
    • WO00009627A1
    • 2000-02-24
    • PCT/US1999/003657
    • 1999-02-19
    • G02F1/141C09K19/02C09K19/04C09K19/12C09K19/30C09K19/32C09K19/34C09K19/54G02F1/13
    • C09K19/0266C09K19/04C09K19/34C09K19/345C09K19/3469C09K19/3497Y10T428/1036
    • A tristable liquid crystal display device comprises (a) first and second opposed substrates, at least one bearing an alignment coating and each bearing at least one electrode so as to define one or a plurality of pixels; (b) a tilted smectic or induced tilted smectic liquid crystal composition disposed between the substrates; and (c) a pair of orthogonally disposed polarizers, each having a polarization axis, one polarization axis being aligned with the zero field optical axis of a tilted smectic or induced tilted smectic mesophase of the liquid crystal composition; wherein the substrates are disposed so as to provide an alignment of the liquid crystal composition, the composition comprising at least one chiral liquid crystal compound that can be represented by the following formula (I): R-M-N-(P)b-OCH2C HF-CH2O(CH2)aRf where M, N, and P are independently selected from the group consisting of aromatic, heteroaromatic, alicyclic, heteroalicyclic, substituted aromatic, substituted heteroaromatic, substituted alicyclic, and substituted heteroalicyclic rings, the individual rings being fused or non-fused, and the rings being connected with each other by a covalent bond or an organic linking group; R is alkyl, alkenyl, alkoxy, or alkoxy alkylene; designates a chiral center; a is an integer of 0 or 1; b is an integer of 0 or 1; and Rf is a perfluoroether group.
    • 三重液晶显示装置包括(a)第一和第二相对的基板,至少一个轴承对准涂层,并且每个轴承至少一个电极以限定一个或多个像素; (b)设置在基板之间的倾斜的近晶或诱导倾斜的近晶液晶组合物; 和(c)一对正交设置的偏振器,每个具有偏振轴,一个偏振轴与液晶组合物的倾斜的近晶或诱导的倾斜的近晶中间相的零场光轴对齐; 其特征在于,所述基板配置为提供所述液晶组合物的取向,所述组合物含有可由下式(I)表示的至少一种手性液晶化合物:RMN-(P)b-OCH 2 C * HF-CH 2 O(CH 2)a R f其中M,N和P独立地选自芳族,杂芳族,脂环族,杂脂环,取代的芳族,取代的杂芳族取代的脂环族和取代的杂脂环,各个环稠合或 非稠合,并且所述环通过共价键或有机连接基彼此连接; R是烷基,烯基,烷氧基或烷氧基亚烷基; 指定手性中心; a是0或1的整数; b为0或1的整数; Rf为全氟醚基。
    • 6. 发明申请
    • LIQUID-CRYSTAL COMPOSITION
    • 液晶组合物
    • WO1996038513A1
    • 1996-12-05
    • PCT/JP1996001478
    • 1996-05-31
    • MITSUI PETROCHEMICAL INDUSTRIES, LTD.NISHIYAMA, ShinichiTATSUKI, YuichirouFUJIYAMA, TakahiroHIRANO, ChihoHAMA, HideoYAMANAKA, Tohru
    • MITSUI PETROCHEMICAL INDUSTRIES, LTD.
    • C09K19/02
    • C09K19/0266C09K19/0225
    • A smectic liquid-crystal composition according to the first embodiment is characterized in that a voltage gradation parameter L(=SH/SO) is less than 0.6, when a voltage is impressed upon a liquid-crystal cell that is filled with this composition and is put between a pair of polarizing plates placed at the position of crossed nicols to prepare a hysteresis curve relating to the voltage and light transmittance, and the tangent IR of the curve where the transmittance steeply increases as the voltage is impressed intersects at the point P with the tangent IF of the curve adjacent to the above curve on the high-voltage side. A liquid-crystal composition according to the second embodiment is characterized in that a parameter G as defined by the equation (B) is 0 to 0.3 (wherein S represents the area of the region surrounded by the hysteresis curve, Tmin represents the minimum value of the transmittance, and To represents the transmittance when no voltage is impressed), when the transmittance reaches the maximum value Tmax as the absolute value |V| of the impressed voltage is increased to exceed a given value |V|min.
    • 根据第一实施方案的近晶型液晶组合物的特征在于,当将电压施加到填充有该组合物的液晶单元时,电压灰度参数L(= SH / SO)小于0.6,并且是 放置在位于正交尼科尔位置的一对偏振板之间,以制备与电压和透光率有关的滞后曲线,并且随着电压的增加,透射率急剧增加的曲线的切线IR在点P处相交, 在高压侧与上述曲线相邻的曲线的切线IF。 根据第二实施方案的液晶组合物的特征在于,由式(B)定义的参数G为0至0.3(其中S表示由滞后曲线包围的区域的面积,Tmin表示 透射率,To表示没有施加电压时的透射率),当透射率达到最大值Tmax时,绝对值| V | 外加电压增加到超过给定值| V | min。
    • 8. 发明申请
    • 液晶表示装置
    • 液晶显示装置
    • WO2009087817A1
    • 2009-07-16
    • PCT/JP2008/070791
    • 2008-11-14
    • サンテック・ディスプレイ株式会社有限会社エルシーエー鈴木 康福田敦夫陳 国平
    • 鈴木 康福田敦夫陳 国平
    • G02F1/141G02F1/13G02F1/133G09G3/20G09G3/34G09G3/36
    • G09G3/342C09K19/0266C09K19/2021G02F2001/133622G02F2001/1412G09G3/3413G09G3/3633G09G2300/06G09G2310/0235G09G2310/06G09G2320/0242
    • 【課題】  FSCモードを用いた単純マトリックス駆動において、良好なマトリックス特性を確保する事により、色分解能を確保するとともに、合成容易な液晶材料を用いる事により、安価で高性能な液晶表示装置を提供する事を目的とする。 【解決手段】 1本以上の行電極と、一本以上の列電極が形成された基板と、該基板間に狭持された反強誘電性液晶物質と、独立した3原色光が順次発光する照明装置とを有するフィールドシーケンシャル駆動方式の反強誘電性カラー液晶表示装置において、該反強誘電性カラー液晶表示装置に三角波を印加した時のヒステリシス曲線の立ち上がり側の飽和電圧304の80%における透過光強度332が最大透過光強度330に対し、3%以上の透過光強度を実現させる反強誘電性液晶物質を含有することを特徴とする。  また上記表示装置に諧調表示を可能にするためには、データ電圧に対し時間幅変調を施す事を特徴とする。
    • 旨在通过保持令人满意的矩阵特性,通过使用FSC模式在简单矩阵驱动中保持色分辨能力,并且通过使用易于合成的液晶材料提供廉价的高性能液晶显示装置。 提供了一种场顺序驱动型的反铁电彩色液晶显示装置,包括一个或多个线电极,其中形成有一个或多个行电极的基板,夹在基板之间的反铁电液晶物质,以及用于发射独立原色的照明装置 顺序。 液晶显示装置的特征在于含有反铁电液晶物质,其中在斩波为零时,滞后曲线上升侧的饱和电压(304)的80%的透射光强度(332)为 应用于反铁电彩色液晶显示装置的透射光强度达到最大透射光强度(330)的3%以上。 液晶显示装置的特征还在于,其对数据电压进行时间宽度调制,使得其能够执行灰度显示。