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1. 发明公开

EP2397874A4 LAMINATE OPTICAL BODY, OPTICAL FILM, LIQUID CRYSTAL DISPLAY DEVICE USING SAID OPTICAL FILM, AND METHOD FOR MANUFACTURING LAMINATE OPTICAL BODY 审中-公开
标题翻译：镀膜光学元件中，光学薄膜具有产生涂敷光元素此光学膜与方式的液晶显示装置
公开(公告)号：EP2397874A4
公开(公告)日：2012-07-18
申请号：EP10741203
申请日：2010-02-08
申请人： NITTO DENKO CORP
发明人： NISHIMURA AKINORI , YAGINUMA HIRONORI , YOSHIMI HIROYUKI , TAKEDA KENTAROU , INAGAKI JUNICHI , KINOSHITA RYOJI , KITAGAWA TAKEHARU
IPC分类号： G02B5/30 , B32B7/02 , G02F1/1335 , G02F1/13363
CPC分类号： G02B5/3033 , B32B27/08 , B32B27/281 , B32B27/288 , B32B27/306 , B32B27/34 , B32B27/36 , B32B2307/412 , B32B2307/418 , B32B2307/42 , B32B2307/516 , B32B2307/728 , B32B2307/732 , B32B2457/202 , G02B5/3016 , G02F1/133634 , Y10T428/10 , Y10T428/265 , Y10T428/31504

2. 发明公开

EP2653898A4 METHOD FOR PRODUCING POLARIZING FILM 有权
标题翻译：制造方法偏振层
公开(公告)号：EP2653898A4
公开(公告)日：2013-11-20
申请号：EP11847890
申请日：2011-11-29
申请人： NITTO DENKO CORP
发明人： GOTO SHUSAKU , SAWADA HIROAKI , KITAGAWA TAKEHARU , MIYATAKE MINORU
IPC分类号： G02B5/30 , B29C55/02 , B29K29/00 , B29L9/00 , B29L11/00 , B32B27/30 , G02F1/1335
CPC分类号： G02B5/305 , B29C55/023 , B29C55/06 , B29K2029/04 , B29K2995/0034 , B32B27/306
摘要： The present invention provides a method of producing a polarizing film having excellent optical characteristics. The method of producing a polarizing film of the present invention includes: forming a polyvinyl alcohol-based resin layer 12 on a thermoplastic resin substrate 11 to produce a laminate 10 ; dyeing the polyvinyl alcohol-based resin layer 12 of the laminate 10 with iodine; stretching the laminate 10 ; and covering, after the dyeing and the stretching, a surface of the polyvinyl alcohol-based resin layer 12 of the laminate 10 with a cover film having a moisture permeability of 100 g/m 2 ·24 h or less, followed by heating of the laminate 10 under the state.

3. 发明公开

EP2921902A4 LIQUID CRYSTAL PANEL AND POLARIZER LAMINATE USED IN SAID LIQUID CRYSTAL PANEL 审中-公开
标题翻译：液晶面板和液晶面板用于本POLARISATORLAMINAT
公开(公告)号：EP2921902A4
公开(公告)日：2016-07-13
申请号：EP14858217
申请日：2014-09-03
申请人： NITTO DENKO CORP
发明人： IIDA TOSHIYUKI , KITAGAWA TAKEHARU
IPC分类号： G02F1/13363 , G02B5/30 , G02B5/32
CPC分类号： G02F1/133634 , G02F1/133528 , G02F1/134363 , G02F2001/133311 , G02F2201/50 , G02F2202/40 , G02F2203/64 , G02F2413/06 , G02F2413/12 , G02F2413/13 , G02F2413/14
摘要： Provided is a liquid crystal panel which is capable of significantly reducing a thickness thereof as compared to conventional liquid crystal panels, and, when used in a liquid crystal display device using a liquid crystal cell such as an IPS-type liquid crystal cell, reducing oblique light leakage in a black state of the liquid crystal display device to enhance contrast. Each of a pair of polarizers on respective opposite sides of a liquid crystal cell has a thickness of 10 µm or less, and exhibits optical properties including a single transmittance of 40.0% or more and a polarization degree of 99.8% or more. A retardation layer laminated to one of the opposite sides of the liquid crystal cell has a thickness of 25 µm or less, with a moisture permeability of 200 g/m 2 or less, wherein a value of ”nxy1 and a value of ”nxz1 are, respectively, 0.0036 or more, and 0.0041 or more, and Re and Rth are, respectively, in the range of 90 nm to 140 nm and the range of 100 nm to 240 nm, where ”nxy1 represents a difference between a refractive index nx1 in a slow axis direction and a refractive index ny1 in a fast axis direction; ”nxz1 represents a difference between the refractive index nx1 in the slow axis direction and a refractive index nz1 in a thickness-wise direction, Re represents an in-plane retardation, and Rth represents a thicknesswise retardation expressed in the formula Rth = (nx1-nz1) × d1, where d1 represents a thickness of the first retardation layer.

4. 发明公开

EP2426522A4 METHOD FOR PRODUCING POLARIZER 审中-公开
标题翻译：用于生产偏光片
公开(公告)号：EP2426522A4
公开(公告)日：2013-08-28
申请号：EP10769776
申请日：2010-04-28
申请人： NITTO DENKO CORP
发明人： SAWADA HIROAKI , KITAGAWA TAKEHARU , KAMIJO TAKASHI
IPC分类号： G02B5/30 , B29D11/00 , G02F1/1335
CPC分类号： G02B1/08 , B32B2457/202 , C08J5/18 , C08J7/04 , C08J2385/04 , C08J2429/04 , G02B5/3033 , Y10T428/265
摘要： A method for producing a polarizer (20) comprises the steps of: (A) stretching a polyvinyl alcohol-based resin layer (10) to obtain a stretched layer (14); (B) immersing the stretched layer (14) in a dyeing liquid (23) containing iodine to obtain a dyed layer (18) in which absorbance thereof determined from a tristimulus value Y is from 0.4 to 1.0 (transmittance T = 40% to 10%); and (C) removing a part of iodine adsorbed in the dyed layer (18) so that the absorbance of the dyed layer (18) decreases by 0.03 to 0.7, provided that the absorbance of the dyed layer (18) is controlled so that it does not become less than 0.3.

5. 发明公开

EP2405288A4 HIGHLY FUNCTIONAL THIN POLARIZING FILM AND PROCESS FOR PRODUCING SAME 有权
标题翻译：高功能薄膜极化过程用于生产
公开(公告)号：EP2405288A4
公开(公告)日：2012-08-29
申请号：EP10748516
申请日：2010-03-03
申请人： NITTO DENKO CORP
发明人： GOTO SHUSAKU , MIYATAKE MINORU , MORI TOMOHIRO , YOSHIDA KENTARO , KITAGAWA TAKEHARU
IPC分类号： G02B5/30 , B29C55/02 , B29K29/00 , B29L9/00 , B29L11/00 , G02F1/1335
CPC分类号： G02B5/3033 , Y10T428/265

6. 发明公开

EP2613183A4 THIN POLARIZING FILM, OPTICAL LAMINATE WITH THIN POLARIZING FILM, AND PRODUCTION METHOD FOR THIN POLARIZING FILM 审中-公开
标题翻译：薄膜偏振，随着对薄膜偏振薄膜偏振和方法光学叠压
公开(公告)号：EP2613183A4
公开(公告)日：2017-04-05
申请号：EP11821951
申请日：2011-09-02
申请人： NITTO DENKO CORP
发明人： IZAKI AKINORI , KITAGAWA TAKEHARU , GOTO SHUSAKU , KAMIJO TAKASHI , MORI TOMOHIRO , MIYATAKE MINORU
IPC分类号： G02B5/30 , B29C55/06 , B32B27/30 , G02F1/1335
CPC分类号： G02B5/305 , B05D5/06 , B29C55/026 , B29C55/06 , B29D11/00644 , B29K2029/04 , B29K2067/003 , B29K2995/0034 , C08J7/047 , C08J2323/20 , C08J2367/02 , C08J2429/04 , G02B5/3033 , G02F1/133528
摘要： The present invention provides a thin polarizing film which has only a small environmental load and has excellent optical characteristics. The thin polarizing film is produced by forming a polyvinyl alcohol-based resin layer on a thermoplastic resin substrate. The thin polarizing film has a thickness of 10 µm or less, a single axis transmittance of 42.0% or more, a polarization degree of 99.95% or more, and an iodine content of 17.6 grams per 400×700 square millimeters or less, which is measured by an ion chromatography method.

7. 发明公开

EP2869099A4 OPTICAL LAMINATE HAVING POLARIZING FILM 审中-公开
标题翻译：偏振薄膜光学叠压
公开(公告)号：EP2869099A4
公开(公告)日：2015-11-11
申请号：EP14748720
申请日：2014-02-06
申请人： NITTO DENKO CORP
发明人： KAMIJO TAKASHI , IZAKI AKINORI , KITAGAWA TAKEHARU , GOTO SHUSAKU , NAKAGAWA DAIGORO
IPC分类号： G02B5/30 , B32B7/02 , B32B27/30 , G02B1/10
CPC分类号： G02B5/3033 , B32B7/02 , B32B7/12 , B32B27/08 , B32B27/306 , B32B2307/412 , B32B2307/418 , B32B2307/42 , B32B2457/20 , B32B2457/202 , B32B2457/206 , G02B1/111 , G02B1/14 , G02B5/3083
摘要： In an optical laminate comprising a polarizing film having a relatively high iodine density, it is an object of the present invention to reduce interference unevenness due to reflected light from the polarizing film. Disclosed is an optical laminate in which a polarizing film comprised of a polyvinyl alcohol-based resin having oriented iodine is bonded on a first surface of the polarizing film to an optical film through an optically transparent adhesive layer, wherein: the polarizing film exhibits a property that a value expressed by the following formula: Aa x (Is / Ia), is 0.53 or more, where: Aa represents an absorbance in an absorption axis direction of the polarizing film at a wavelength of 480 nm; Ia represents a value obtained by integrating, over an entire interval in a thickness direction of the polarizing film, a distribution of integrated intensities in the thickness direction of the polarizing film, wherein each of the integrated intensities is obtained by integrating a Raman spectrum of the polarizing film in a wavenumber interval of 90 cm -1 to 120 cm -1 ; and Is represents a value obtained by integrating, over the entire interval in the thickness direction of the polarizing film, a distribution of integrated intensities in the thickness direction of the polarizing film, wherein each of the integrated intensities is obtained by integrating, in a wavenumber interval of 90 cm -1 to 120 cm -1 , Raman scattering of I 3 - ions which exist in a region of the polarizing film ranging from the first surface to 1 µm inward in the thickness direction thereof, and oriented in the absorption axis direction of the polarizing film; and the adhesive layer exhibits a property that a difference between a refractive index of the adhesive layer and a refractive index in the absorption axis direction of the polarizing film at the first surface of the polarizing film is 0.08 or less.

8. 发明公开

EP2023192A4 APPRECIATING ROOM FOR LIQUID CRYSTAL DISPLAY DEVICE, AND METHOD FOR APPRECIATING LIQUID CRYSTAL DISPLAY DEVICE 有权
标题翻译：评估SPACE对于法官的液晶显示器液晶显示装置及方法
公开(公告)号：EP2023192A4
公开(公告)日：2012-03-07
申请号：EP07741080
申请日：2007-04-05
申请人： NITTO DENKO CORP
发明人： YOSHIMI HIROYUKI , KITAGAWA TAKEHARU
IPC分类号： G02F1/13357 , G02F1/13363
CPC分类号： G02F1/13363 , G02F2001/133638 , G02F2413/02 , G02F2413/08 , G02F2413/12

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