公开(公告)号：US20130266743A1

公开(公告)日：2013-10-10

申请号：US13845659

申请日：2013-03-18

Applicant: FUJIFILM CORPORATION

Inventor： Jun TAKEDA ,  Takashi TAMADA ,  Taku WAKITA

IPC: G02F1/1333 ,  G02B5/30

CPC classification number: G02F1/1333 ,  G02B5/30 ,  G02B5/3016 ,  G02B5/3041 ,  G02B5/3083 ,  Y10T428/1041

Abstract: An optical film having a thickness of from 20-60 μm, Re(550) of larger than 80-350 nm, an elastic modulus Em in a direction that is in parallel or perpendicular to one arbitrary edge of the film and provides a maximum elastic modulus of the film, and an elastic modulus Es in a direction that is perpendicular to the direction of Em, with satisfying Em/Es of 1.5-2.5; and satisfying: - 0.14 ≦ log   E T   10 ′ - log   E T   100 ′ T 10 - T 100 ≦ - 0.02 wherein T10 represents a temperature where E′RT becomes 1/10; T100 represents a temperature where E′RT becomes 1/100; log E′T10 represents log E′ where E′RT becomes 1/10; and log E′T100 represents log E′ where E′RT becomes 1/100, wherein E′ represents a storage modulus of the film measured by dynamic viscoelastic measurement, and E′RT represents the storage modulus of the film at room temperature.

Abstract translation: 具有20-60μm厚度的Re（550）大于80-350nm的光学膜，在与膜的一个任意边缘平行或垂直的方向上的弹性模量Em，并提供最大弹性 膜的模量和与Em的方向垂直的方向的弹性模量Es，满足Em / Es为1.5-2.5; 并且满足以下条件： - 0.14 @ logEwherein;;;;;;; wherein wherein;;; wherein;;;;;;;;; T100表示​​E'RT变为1/100的温度; log E'T10表示E'RT变为1/10的log E'; 并且log E'T100表示​​E'RT变为1/100的log E'，其中E'表示通过动态粘弹测量测量的膜的储能模量，E'RT表示膜在室温下的储能模量。

公开(公告)号：US20130128359A1

公开(公告)日：2013-05-23

申请号：US13679482

申请日：2012-11-16

Applicant: FUJIFILM CORPORATION

Inventor： Taku WAKITA ,  Takashi TAMADA ,  Akihiro MATSUFUJI ,  Jun TAKEDA

IPC: G02B5/30

CPC classification number: G02B5/30 ,  C08J5/18 ,  C08J2301/10 ,  C08J2301/14 ,  C08K5/0016 ,  G02B1/04 ,  G02B5/3083 ,  C08L1/08 ,  C08L1/10 ,  C08L1/14

Abstract: An optical film having a high Re and a low |Rth| is provided. An optical film consists of a composition that includes cellulose acylate having an acyl group including an aromatic group, and satisfies Formula (I) 150 nm≦Re (550)≦350 nm, Formula (II) −50 nm≦Rth (550)≦50 nm, and Formula (III) 0.07 nm≦degree of cross-sectional orientation P2z≦1, Here, Re (550) represents the in-plane retardation at a wavelength of 550 nm, and Rth (550) represents the thickness direction retardation at a wavelength of 550 nm.

Abstract translation: 具有高Re和低| Rth |的光学膜 被提供。 光学膜由包含具有芳基的酰基的酰化纤维素的组合物组成，并且满足式（I）150nm @ Re（550）@ 350nm，式（II）-50nm @ Rth（550）@ 50nm，式（III）为0.07nm @截面取向度P2z @ 1，这里，Re（550）表示波长550nm处的面内相位差，Rth（550）表示厚度方向延迟 波长为550nm。