公开(公告)号：JP2008023917A

公开(公告)日：2008-02-07

申请号：JP2006201219

申请日：2006-07-24

Applicant: Fujifilm Corp ,  富士フイルム株式会社

Inventor： SUGIYAMA SUSUMU

IPC: B29C55/02 ,  B29C41/24 ,  B29K1/00 ,  B29L7/00 ,  B29L11/00 ,  G02B5/30 ,  G02F1/1335 ,  G02F1/13363

Abstract: PROBLEM TO BE SOLVED: To provide a cellulose acylate optical film particularly for VA (vertically aligned), IPS (in-plane switching) and OCB (optically compensatory bend) modes which accurately, optically compensates liquid crystal cells and improves its contrast and the color shift dependent on a visual angle in black display, to provide its production method and a polarizing plate using the optical film, and also to provide a liquid crystal display, particularly of VA, IPS and OCB modes which improves the contrast and the color shift dependent on the visual angle in black display. SOLUTION: The method for production of the cellulose acylate optical film includes: a film formation process for obtaining a film having the volatile portions of equal to or less than 5 wt.% by a solution casting method; and the stretching and contraction processes for stretching and contracting the obtained film in X% elongation and Y% contraction rate, respectively so as to satisfy the formula (Z). COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了提供特别用于VA（垂直取向），IPS（面内切换）和OCB（光学补偿弯曲）模式的纤维素酰化物光学膜，其精确地光学补偿液晶单元并改善其对比度 并且颜色偏移取决于黑色显示器中的视角，以提供其制造方法和使用该光学膜的偏振片，并且还提供液晶显示器，特别是提供改善对比度的VA，IPS和OCB模式的液晶显示器 颜色偏移取决于黑色显示器中的视角。 解决方案：纤维素酰化物光学膜的制造方法包括：通过溶液流延法获得挥发份为5重量％以下的膜的成膜方法; 以及拉伸和收缩所得膜的X％伸长率和Y％收缩率的拉伸和收缩过程，以满足式（Z）。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007264259A

公开(公告)日：2007-10-11

申请号：JP2006088537

申请日：2006-03-28

Applicant: Fujifilm Corp ,  富士フイルム株式会社

Inventor： OKARU IKUKO ,  SUGIYAMA SUSUMU

IPC: G02B5/30 ,  B29C41/24 ,  B29K1/00 ,  B29L7/00 ,  G02F1/1335 ,  G02F1/13363

Abstract: PROBLEM TO BE SOLVED: To provide; an optical film for VA, IPS and OCB modes accurately and optically compensating a liquid crystal cell and improving high contrast and a color shift depending on a visual angle direction when black display is performed; its manufacturing method; a polarizing plate using the optical film; and a liquid crystal display device which has high contrast and wherein the color shift depending on the visual angle direction when black display is performed is improved and peripheral unevenness is hardly generated even when temperature and humidity change is received. SOLUTION: The optical film is characterized in that a value obtained by dividing a smaller value of values of a photoelastic coefficient in the longitudinal direction of the film and a photoelastic coefficient in a direction nearly orthogonal to the longitudinal direction by a larger value is ≤0.8. The manufacturing method of the optical film includes a stretching process for stretching the film and a contracting process for contracting the film after a casting process and a drying process for drying the film at 40 to 60°C prior to the stretching process and the contracting process after the casting process. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供; 用于VA，IPS和OCB模式的光学膜准确地并且在执行黑色显示时根据视角方向精确地和补偿液晶单元并改善高对比度和颜色偏移; 其制造方法; 使用该光学膜的偏光板; 以及具有高对比度的液晶显示装置，并且其中当执行黑色显示时，根据视角方向的色移得到改善，即使接收到温度和湿度变化也难以产生周边不均匀。 光学膜的特征在于，通过将膜的纵向方向上的光弹性系数的值的值的值和与纵向近似正交的方向的光弹性系数除以更大的值而获得的值 ≤0.8。 光学薄膜的制造方法包括拉伸薄膜的拉伸工序和用于在铸造工序之后收缩薄膜的收缩过程以及在拉伸过程和收缩过程之前在40至60℃干燥薄膜的干燥工艺 铸造后。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2011221545A

公开(公告)日：2011-11-04

申请号：JP2011122181

申请日：2011-05-31

Applicant: Fujifilm Corp ,  富士フイルム株式会社

Inventor： SUGIYAMA SUSUMU

IPC: G02F1/13363 ,  B29C41/24 ,  B29K1/00 ,  B29L7/00 ,  B29L11/00 ,  G02B5/30 ,  G02F1/1335

Abstract: PROBLEM TO BE SOLVED: To provide a liquid crystal display device that is superb in expression of retardation in a front direction and in a film-thickness direction with little change in view angle characteristics and is made of cellulose acetate film, which is thin and easy to handle at the time of manufacture and processing.SOLUTION: The liquid crystal display device includes a pair of polarizing plates 30 and 32 that comprise polarizing films 34, 37 and pairs of protection films 33, 35, 36, and 38 sandwiching the polarizing films. At least one of the protection films is a cellulose acetate film 36 of 20-70 μm in thickness with an elastic modulus in at least one direction of a film stretching direction and a width direction being 3.5-10 GPa. A viewing angle is equal to or greater than polar angle 80° in at least three directions of upward, downward, right and left directions. Contrast in the front direction expressed by luminance of white display/luminance of black display is equal to or greater than 300.

Abstract translation: 解决的问题：提供一种液晶显示装置，其在前视方向和膜厚度方向表现出极好的视角特性几乎没有变化，并且由醋酸纤维素膜 在制造和加工时易于处理。 解决方案：液晶显示装置包括一对偏振片30和32，它们包括偏振膜34,37和夹持偏光膜的保护膜33,35,36和38对。 保护膜中的至少一个是厚度为20-70μm的醋酸纤维素膜36，在膜拉伸方向和宽度方向的至少一个方向上的弹性模量为3.5-10GPa。 视角在向上，向下，向右和向左方向的至少三个方向上等于或大于极角80°。 在黑色显示的白色显示亮度/亮度表示的正面方向上的对比度等于或大于300. COPYRIGHT：（C）2012，JPO＆INPIT

公开(公告)号：JP2009096832A

公开(公告)日：2009-05-07

申请号：JP2007267123

申请日：2007-10-12

Applicant: Fujifilm Corp ,  富士フイルム株式会社

Inventor： SUGIYAMA SUSUMU ,  SASADA YASUYUKI

IPC: C08J5/18 ,  G02B5/30 ,  G02F1/1335 ,  G02F1/13363

Abstract: PROBLEM TO BE SOLVED: To provide a film that has excellent optical compensation performance and can be laminated by using a water-soluble adhesive. SOLUTION: The cellulose acylate film satisfies the formula ¾Re(630 nm)-Re(450 nm)¾≥10 nm [wherein Re(λ) is an in-plane retardation value (unit; nm) measured by a light having a wavelength of λ nm]. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供具有优异的光学补偿性能并且可以通过使用水溶性粘合剂层压的膜。 解决方案：酰化纤维素膜满足公式¾Re（630nm）-Re（450nm）¾≥10nm[其中Re（λ）是通过具有以下的光测量的面内延迟值（单位：nm） 波长λnm]。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008089855A

公开(公告)日：2008-04-17

申请号：JP2006269368

申请日：2006-09-29

Applicant: Fujifilm Corp ,  富士フイルム株式会社

Inventor： KUMON YOSHIAKI ,  NAKAMURA KAZUHIRO ,  SUGIYAMA SUSUMU

IPC: G02B5/30 ,  C08J5/18 ,  C08K5/04 ,  C08K5/3472 ,  C08K5/3477 ,  C08L1/10 ,  G02F1/13363

Abstract: PROBLEM TO BE SOLVED: To provide an optically compensatory film for a polarizing plate which optically compensates a liquid crystal cell with accuracy, suppresses a color shift depending on a viewing angle direction in high contrast and black display, and ensures sufficiently small variations of Re and Rth to a change of the environmental humidity, a polarizing plate using the same, and a liquid crystal display. SOLUTION: The optically compensatory film contains at least a compound A having a plurality of hydrogen bondable groups within one molecule and at least any one of the compounds B represented by general formulae (I)-(III). COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了提供一种用于偏光板的光学补偿膜，其以精确的方式补偿液晶单元，抑制根据高对比度和黑色显示中的视角方向的色移，并确保足够小的变化 的Re和Rth相对于环境湿度的变化，使用其的偏振片和液晶显示器。 解决方案：光学补偿膜至少含有一个分子内具有多个可氢键基团的化合物A和由通式（I） - （III）表示的化合物B中的至少一种。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007290342A

公开(公告)日：2007-11-08

申请号：JP2006246956

申请日：2006-09-12

Applicant: Fujifilm Corp ,  富士フイルム株式会社

Inventor： SUGIYAMA SUSUMU ,  NAKAYAMA HAJIME ,  OKARU IKUKO ,  TOYAMA HIROSHI ,  KUMON YOSHIAKI ,  MARUYAMA YOICHI

IPC: B29C55/02 ,  B29K1/00 ,  B29L7/00 ,  B29L11/00 ,  C08J5/18 ,  G02B5/30 ,  G02F1/1335

Abstract: PROBLEM TO BE SOLVED: To provide a cellulose acylate film, particularly for use in VA, IPS and OCB modes, which improves a color shift depending on high contrast and the direction of a visual angle in black display, by bringing about the accurate optical compensation of a liquid crystal cell, a manufacturing method for the cellulose acylate film, a polarizing plate using the cellulose acylate film, and a liquid crystal display device, particularly for use in the VA, IPS and OCB modes, which improves a contrast and a color shift depending on the direction of the visual angle in the black display. SOLUTION: This manufacturing method for the cellulose acylate film is characterized by comprising a stretch step of stretching a film, and a shrinkage step of shrinking the film. The cellulose acylate film is manufactured by the manufacturing method. The polarizing plate using the cellulose acylate film, and the liquid crystal display device are constituted. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了提供特别用于VA，IPS和OCB模式的纤维素酰化物膜，其通过产生黑色显示器中的高对比度和视角方向来改善颜色偏移 液晶单元的精确光学补偿，纤维素酰化物膜的制造方法，使用纤维素酰化物膜的偏振片以及特别用于VA，IPS和OCB模式的液晶显示装置，其改善对比度 以及根据黑色显示器中的视角的方向的颜色偏移。 解决方案：该纤维素酰化物膜的制造方法的特征在于包括拉伸薄膜的拉伸步骤和收缩薄膜的收缩步骤。 纤维素酰化物膜通过制造方法制造。 构成使用纤维素酰化物膜的偏光板和液晶显示装置。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007264287A

公开(公告)日：2007-10-11

申请号：JP2006088929

申请日：2006-03-28

Applicant: Fujifilm Corp ,  富士フイルム株式会社

Inventor： OKARU IKUKO ,  SUGIYAMA SUSUMU

IPC: G02B5/30 ,  B29C55/02 ,  G02F1/1335

Abstract: PROBLEM TO BE SOLVED: To provide an optical film especially for VA, IPS and OCB modes accurately and optically compensating a liquid crystal cell, having high contrast and nearly free from a color shift depending on a visual angle direction when black display is performed; its manufacturing method; and a polarizing plate using the optical film. SOLUTION: In the optical film, a value obtained by dividing a larger value of values of an acoustic velocity in the longitudinal direction of the film and an acoustic velocity in the direction orthogonal to the longitudinal direction by a smaller value is ≥1.2. In the optical film, the value is ≥1.1 and ratios of front retardation values Re to retardation values Rth in the film thickness direction in 450 nm, 550 nm and 650 nm wavelengths and mutual ratios of the respective front retardation values Re in 450 nm, 550 nm and 650 nm wavelengths are in specified ranges. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了提供专门用于VA，IPS和OCB模式的光学膜，其精确地和光学补偿液晶单元，具有高对比度并且几乎不受根据视角方向的色移，当黑色显示为 执行; 其制造方法; 和使用该光学膜的偏振片。 解决方案：在光学膜中，通过将膜的纵向方向上的声速值的较大值与与纵向正交的方向的声速除以更小的值得到的值为≥1.2 。 在光学膜中，在450nm，550nm和650nm波长中的值为≥1.1且前延迟值Re与膜厚度方向上的延迟值Rth的比率以及各个正面延迟值Re在450nm的相互比率， 550nm和650nm波长在指定范围内。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007261189A

公开(公告)日：2007-10-11

申请号：JP2006091752

申请日：2006-03-29

Applicant: Fujifilm Corp ,  富士フイルム株式会社

Inventor： SUGIYAMA SUSUMU ,  NAKAMURA KAZUHIRO

IPC: B29C55/02 ,  B29K1/00 ,  G02B5/30 ,  G02F1/1335 ,  G02F1/13357

Abstract: PROBLEM TO BE SOLVED: To provide cellulose acylate films for especially VA, IPS and OCB modes which optically compensate liquid crystal cells and improve a color shift depending on a high contrast and visual angle direction in black display, a producing method therefore, a polarizing plate and a liquid crystal display device using the cellulose acylate film. SOLUTION: The method for producing a cellulose acylate film is characterized in that it comprises a stretching step for stretching a film and a contracting step for contracting the film, the contracting step starts with the stretching step at the same time, or starts before the stretching step, and the contracting step ends with the stretching step at the same time or before the stretching step, and comprises the stretching step for stretching the film and the contracting step for contracting the film, the contracting step starts before the starting of the stretching step, and the contracting step ends with the stretching step at the same time. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了提供特别是VA，IPS和OCB模式的纤维素酰化物膜，其在黑色显示中根据高对比度和视角方向光学补偿液晶单元并改善色移，因此， 偏振片和使用纤维素酰化物膜的液晶显示装置。 解决方案：制备纤维素酰化物膜的方法的特征在于它包括拉伸薄膜的拉伸步骤和用于收缩薄膜的收缩步骤，收缩步骤同时由拉伸步骤开始或开始 在拉伸步骤之前，收缩步骤在拉伸步骤的同时或拉伸步骤之前以拉伸步骤结束，并且包括用于拉伸薄膜的拉伸步骤和用于收缩薄膜的收缩步骤，收缩步骤在开始之前开始 拉伸步骤和收缩步骤同时以拉伸步骤结束。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007249180A

公开(公告)日：2007-09-27

申请号：JP2007013047

申请日：2007-01-23

Applicant: Fujifilm Corp ,  富士フイルム株式会社

Inventor： SAKURAZAWA MAMORU ,  KAMIHIRA SHIGEO ,  FUKAGAWA NOBUTAKA ,  SUGIYAMA SUSUMU ,  ARAI TERUKI ,  OGAWA TOMOHIRO

IPC: G02B5/30 ,  G02F1/1335 ,  G02F1/13363

Abstract: PROBLEM TO BE SOLVED: To provide an optical film which is free of coloration of black display even when obliquely observed and provides high display quality, a polarizing plate using the same, and a liquid crystal display device. SOLUTION: The optical film contains at least one kind of Rth raising agent as well as at least one kind of low molecular compound characterized in that a molecule absorption wavelength originating from transitional electric dipolar moment My nearly orthogonal to a molecule long-axis direction is longer than a molecule absorption wavelength originating from transitional electric dipolar moment Mx nearly parallel to the molecule long-axis direction and the value ¾My¾ of the transitional electric dipolar moment nearly orthogonal to the molecule long-axis direction is larger than the value ¾Mx¾ of the transitional electric dipolar moment nearly parallel to the molecule long-axis direction. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：即使在倾斜观察并且提供高显示质量的情况下，提供一种即使没有黑色显示着色的光学膜，也可以使用该光学膜，以及液晶显示装置。 解决方案：光学膜包含至少一种Rth引发剂以及至少一种低分子化合物，其特征在于源自过渡电偶极矩的分子吸收波长我几乎与分子长轴正交 方向长于源于与分子长轴方向几乎平行的过渡电偶极矩Mx的分子吸收波长，并且与分子长轴方向几乎正交的过渡电偶极矩的值¾My¾大于分子长轴方向的值¾Mx¾ 过渡电偶极矩几乎平行于分子长轴方向。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2007225912A

公开(公告)日：2007-09-06

申请号：JP2006047162

申请日：2006-02-23

Applicant: Fujifilm Corp ,  富士フイルム株式会社

Inventor： FUKUDA KENICHI ,  SUGIYAMA SUSUMU

IPC: G02F1/13363 ,  G02B5/30 ,  G02F1/1335

Abstract: PROBLEM TO BE SOLVED: To provide a liquid crystal display device causing less light leakage in black display, and thereby, showing high contrast, little change in colors by angles and excellent productivity. SOLUTION: The device includes: a first polarizing layer; a liquid crystal cell comprising a pair of substrates and a liquid crystal layer held between the substrates and having liquid crystal molecules to be aligned substantially parallel to the substrates during black display; a first optical anisotropic layer 34 disposed between the first polarizing layer and the liquid crystal layer and showing an in-plane retardation of 0 to 10 nm and a retardation of -400 to -30 nm in the thickness direction; and a second optical anisotropic layer showing an in-plane retardation of 20 to 150 nm; wherein at least the first optical anisotropic layer 34 is formed on the substrate (first substrate 30) nearer to the first polarizing layer of the pair of substrates, and the second optical anisotropic layer is disposed between the first optical anisotropic layer 34 and the first polarizing layer. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种在黑色显示器中引起较少光泄漏的液晶显示装置，从而显示高对比度，以角度的颜色变化小，生产率优异。 解决方案：该装置包括：第一偏振层; 液晶单元，其包括一对基板和保持在所述基板之间的液晶层，并且在黑色显示期间具有与所述基板基本平行的液晶分子; 第一光学各向异性层34，其设置在第一偏振层和液晶层之间，并且在厚度方向上显示出0〜10nm的面内相位差和-400〜-30nm的延迟。 以及表示20〜150nm的面内相位差的第二光学各向异性层。 其中至少第一光学各向异性层34形成在更靠近一对基板的第一偏振层的基板（第一基板30）上，第二光学各向异性层设置在第一光学各向异性层34与第一偏振光 层。 版权所有（C）2007，JPO＆INPIT