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    • 1. 发明专利
    • Retardation film, polarizing plate, and liquid crystal display device
    • 延迟膜,极化板和液晶显示装置
    • JP2011128584A
    • 2011-06-30
    • JP2010119854
    • 2010-05-25
    • Fujifilm Corp富士フイルム株式会社
    • NAKAMURA TAKASHITOYOOKA KENTARONIMURA KEIROSATO HIROSHI
    • G02B5/30G02F1/1335G02F1/13363
    • G02B5/3016G02F2413/105
    • PROBLEM TO BE SOLVED: To provide a retardation film which can contribute to improvement in the viewing angle contrast without reducing the frontal contrast of a liquid crystal display device. SOLUTION: The retardation film includes a transparent support, an alignment film on one surface of the transparent support, and an optically anisotropic layer on the alignment film. The optically anisotropic layer includes a hybrid-oriented discotic liquid crystal composition, the average tilt angle of the discotic liquid crystal molecule on the side of the alignment film of the optically anisotropic layer is 45° or more and the average tilt angle of the discotic liquid crystal molecule on the side opposite to the alignment film of the optically anisotropic layer is 45° or less. The transparent support and the optically anisotropic layer satisfy following relations: (1) Re(DLC) COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种能够有助于改善视角对比度而不会降低液晶显示装置的正面对比度的延迟膜。 解决方案:延迟膜包括透明支撑体,在透明支撑体的一个表面上的取向膜和取向膜上的光学各向异性层。 光学各向异性层包括混合取向盘状液晶组合物,光学各向异性层的取向膜侧的盘状液晶分子的平均倾斜角为45°以上,盘状液体的平均倾斜角 与光学各向异性层的取向膜相反一侧的结晶分子为45°以下。 透明支撑体和光学各向异性层满足以下关系:(1)Re(DLC)<60nm(2)(-0.5)×Re(透明支持体)+40≤Re(DLC)≤(-0.5)×Re 透明支持)+80(3)0.5×Rth(透明支撑)-10≤Re(DLC)≤0.5×Rth(透明支撑)+30其中Re(DLC)表示光学各向异性层的Re; Re(透明支持)表示Re的透明支持; 和Rth(透明支持)表示透明支持的第R透明支持。 版权所有(C)2011,JPO&INPIT
    • 3. 发明专利
    • Method for manufacturing optical compensation sheet and optical compensation sheet
    • 制造光学补偿表和光学补偿表的方法
    • JP2009198989A
    • 2009-09-03
    • JP2008043116
    • 2008-02-25
    • Fujifilm Corp富士フイルム株式会社
    • SHIOJIRI KAZUHIROOKI KAZUHIRONISHIMURA HIROKAZUNAKAMURA TAKASHI
    • G02B5/30B32B7/02G02F1/13363
    • G02B5/3016
    • PROBLEM TO BE SOLVED: To cope with area increase and mass production of a product and further increase alignment of a nematic liquid crystalline compound without spoiling productivity. SOLUTION: The method for manufacturing the optical compensation sheet includes a process of applying a coating solution containing the nematic liquid crystalline compound onto an alignment layer formed on a surface of a running transparent film 16 in advance, a process of aligning the nematic liquid crystalline compound by heating the coating layer at liquid crystal formation temperature T1(°C) after drying and a process of polymerizing and curing the aligned coating layer. When T2(°C) denotes liquid-liquid crystal phase transition temperature of the nematic liquid crystalline compound, the liquid crystal formation temperature T1(°C) is within a range satisfying a relation: T2-10 ≤T1 COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了应对产品的面积增加和批量生产,并进一步增加向列型液晶化合物的取向,而不损害生产率。 光学补偿片的制造方法包括预先将含有向列型液晶化合物的涂布溶液涂布到形成在正在运行的透明膜16的表面上的取向层上的工序,将向列型 液晶化合物,通过在干燥后以液晶形成温度T1(℃)加热涂层,并且使取向涂布层聚合和固化的工序。 当T2(℃)表示向列型液晶化合物的液晶相转变温度时,液晶形成温度T1(℃)在满足关系式T2-10≤T1
    • 4. 发明专利
    • Laminated optical film, polarizing plate and liquid crystal display device
    • 层压光学薄膜,偏光板和液晶显示装置
    • JP2009098633A
    • 2009-05-07
    • JP2008214287
    • 2008-08-22
    • Fujifilm Corp富士フイルム株式会社
    • NAKAMURA TAKASHITOYODA MASAYOSHI
    • G02B5/30B32B7/02G02F1/1335G02F1/13363
    • G02B5/3016G02B5/305G02F1/133528G02F1/13363G02F1/1395G02F2001/133633G02F2202/40G02F2203/60
    • PROBLEM TO BE SOLVED: To provide a laminated optical film capable of suppressing variation of in-plane retardation value Re as a whole even if in-plane retardation value of each layer varies due to temperature change. SOLUTION: The laminated optical film includes a first optical anisotropic layer, and a second optical anisotropic layer. When a slow axis of the first optical anisotropic layer is substantially perpendicular to a slow axis of the second optical anisotropic layer, the relationship -10 nm≤ΔRe1-ΔRe2≤10 nm is satisfied. When the slow axis of the first optical anisotropic layer is substantially parallel to the slow axis of the second optical anisotropic layer, the relationship -10 nm≤ΔRe1+ΔRe2≤10 nm is satisfied. The in-plane retardation value Re of the whole laminated optical film is 30 nm≤Re≤500 nm. Here, ΔRe1 represents the value of Re1 (50°C)-Re1 (25°C) in the first optical anisotropic layer, and ΔRe2 represents the value of Re2 (50°C)-Re2 (25°C) in the second optical anisotropic layer. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了提供能够抑制面内延迟值Re整体上的变化的叠层光学膜,即使各层的面内延迟值由于温度变化而变化。 层叠光学膜包括第一光学各向异性层和第二光学各向异性层。 当第一光学各向异性层的慢轴基本上垂直于第二光学各向异性层的慢轴时,满足关系-10nm≤ΔRe1-ΔRe2≤10nm。 当第一光学各向异性层的慢轴基本上平行于第二光学各向异性层的慢轴时,满足关系-10nm≤ΔRe1+ΔRe2≤10nm。 整个层压光学膜的面内延迟值Re为30nm≤Re≤500nm。 这里,ΔRe1表示第一光学各向异性层中的Re1(50℃)-Re1(25℃)的值,ΔRe2表示第二光学各向异性层中的Re2(50℃)-Re2(25℃)的值 各向异性层。 版权所有(C)2009,JPO&INPIT
    • 6. 发明专利
    • Optical compensation sheet, polarizing plate and liquid crystal display device
    • 光学补偿表,偏光板和液晶显示装置
    • JP2013054201A
    • 2013-03-21
    • JP2011192075
    • 2011-09-02
    • Fujifilm Corp富士フイルム株式会社
    • NAKAMURA TAKASHINISHIKAWA HIDEYUKINAGASE HISATOMURAMATSU AYAKOOTANI KENTO
    • G02B5/30G02F1/1335G02F1/13363
    • B32B9/04G02B5/30G02B5/3016G02F1/1335
    • PROBLEM TO BE SOLVED: To provide an optical compensation sheet, which ensures adhesion and uniform alignment of an optical anisotropic layer having a high liquid crystal director and can improve frontal contrast when the sheet is adopted in a liquid crystal display device.SOLUTION: The optical compensation sheet has at least one layer of an optical anisotropic layer comprising a discotic liquid crystalline compound on a transparent support, wherein the optical anisotropic layer contains a boronic acid compound expressed by general formula (I). In general formula (I), Rand Reach independently represent a hydrogen atom, a substituted or unsubstituted aliphatic hydrocarbon group, an aryl group or a heterocyclic group, and Rand Rmay be bonded to form a ring; and Rrepresents a substituted or unsubstituted aliphatic hydrocarbon group, an aryl group or a heterocyclic group.
    • 要解决的问题:提供一种光学补偿片,其确保具有高液晶指向矢的光学各向异性层的粘附和均匀取向,并且当在液晶显示装置中采用片材时可以改善前部对比度。 光学补偿片具有在透明支撑体上包含盘状液晶化合物的至少一层光学各向异性层,其中光学各向异性层含有由通式(I)表示的硼酸化合物。 在通式(I)中,R 1 和R 2 各自独立地表示氢原子,取代或未取代的脂族烃基 ,芳基或杂环基,并且R 2 可以键合形成环; 并且R“表示取代或未取代的脂族烃基,芳基或杂环基。 版权所有(C)2013,JPO&INPIT
    • 7. 发明专利
    • Manufacturing method of optical compensation film
    • 光学补偿膜的制造方法
    • JP2012037906A
    • 2012-02-23
    • JP2011228192
    • 2011-10-17
    • Fujifilm Corp富士フイルム株式会社
    • SHIOJIRI KAZUHIRONAKAMURA TAKASHIOKI KAZUHIRONISHIMURA HIROKAZU
    • G02B5/30G02F1/13363
    • PROBLEM TO BE SOLVED: To lower a heating temperature in a heating orientation process without causing defective orientation and smear in a composition for optical anisotropic layer due to vaporization of additive agent.SOLUTION: A manufacturing method of an optical compensation film includes a step of forming a coating layer by applying the composition for optical anisotropic layer on an orientation layer preliminarily formed on a running long film. The composition for optical anisotropic layer includes at least one kind of additive agent for lowering a liquid-liquid crystal phase transition temperature. An amount of volatilization of the additive agent is 20 mass% or less with respect to the addition amount of the additive agent at the lowered temperature of the liquid-liquid crystal phase transition temperature when the addition amount of the additive agent is 20 mass% with respect to the composition for optical anisotropic layer. The manufacturing method of the optical compensation film further includes a heating orientation step for heating and orienting the coating layer at a predetermined temperature after drying the coating layer, and a polymerization curing step of polymerizing and curing the heated and orientated coating layer.
    • 要解决的问题:为了降低加热取向过程中的加热温度,而不会由于添加剂的汽化而导致用于光学各向异性层的组合物的不良取向和污迹。 解决方案:光学补偿膜的制造方法包括通过在预先形成在流动的长膜上的取向层上涂布光学各向异性层用组合物来形成涂层的步骤。 用于光学各向异性层的组合物包括用于降低液 - 液相转变温度的至少一种添加剂。 相对于添加剂添加量为20质量%时的液晶相转变温度降低温度下的添加剂添加量,添加剂的挥发量为20质量%以下, 关于光学各向异性层的组成。 光学补偿膜的制造方法还包括在干燥涂层之后,在预定温度下加热和定向涂层的加热定向步骤,以及聚合和固化加热定向的涂层的聚合固化步骤。 版权所有(C)2012,JPO&INPIT
    • 9. 发明专利
    • Method of manufacturing optical compensation sheet
    • 制造光学补偿表的方法
    • JP2009080450A
    • 2009-04-16
    • JP2008091625
    • 2008-03-31
    • Fujifilm Corp富士フイルム株式会社
    • TOYODA MASAYOSHINAKAMURA TAKASHI
    • G02B5/30G02F1/13363
    • PROBLEM TO BE SOLVED: To provide a method of manufacturing an excellent optical compensation sheet in a short period of time. SOLUTION: The method of manufacturing an optical compensation sheet includes steps of: applying an application liquid of a liquid crystal composition containing at least two liquid crystal compounds onto a surface and drying it, and thereafter heating it for a time ≥5 sec and iso of the liquid crystal composition and ≥30°C to orient the liquid crystal composition; and hardening the liquid crystal composition in an oriented state to form an optical anisotropic layer. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供在短时间内制造优异的光学补偿片的方法。 解决方案:制造光学补偿片的方法包括以下步骤:将含有至少两种液晶化合物的液晶组合物的涂布液涂布在表面上并干燥,然后加热5秒以上 并且在不高于液晶组合物的各向同性相转变温度T iso 的温度下<60秒,并且≥30℃以取向液晶组成; 并使取向状态的液晶组合物硬化,形成光学各向异性层。 版权所有(C)2009,JPO&INPIT
    • 10. 发明专利
    • Optical compensation sheet, polarizing plate and liquid crystal display
    • 光学补偿表,偏光板和液晶显示器
    • JP2007304431A
    • 2007-11-22
    • JP2006134262
    • 2006-05-12
    • Fujifilm Corp富士フイルム株式会社
    • NAKAMURA KAZUHIRONAKAMURA TAKASHI
    • G02B5/30G02F1/13363
    • PROBLEM TO BE SOLVED: To provide an optical compensation sheet which is superior in curling characteristic and has proper productivity, even for the heating condition imposed during manufacturing processes, to provide a polarizing plate, and to provide a liquid crystal display that uses the polarizing plate. SOLUTION: The optical compensation sheet has a transparent support which comprises, at least a transparent resin and a plasticizer, wherein the transparent support is heated at 125°C for 5 min and the curl value on the surface side of the transparent support, which is measured in accordance with the measurement method (ANSI/ASC PH1.29-1985, Method-A) stipulated by The American National Standards Institute, falls in the range of +10(m -1 ) or smaller. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了提供一种卷曲特性优异并且具有适当的生产率的光学补偿片,即使在制造过程中施加的加热条件下,提供偏振片,并且提供使用 偏振片。 光学补偿片具有至少包含透明树脂和增塑剂的透明支撑体,其中透明支撑体在125℃加热5分钟,透明支撑体的表面侧的卷曲值 根据美国国家标准学会规定的测量方法(ANSI / ASC PH1.29-1985,方法-A)测量,范围为+10(m -1 )或更小。 版权所有(C)2008,JPO&INPIT