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1. 发明公开

KR20210008003A 편광판 및 표시 장치 审中-公开
公开(公告)号：KR20210008003A
公开(公告)日：2021-01-20
申请号：KR20207034152
申请日：2019-04-10
申请人： SUMITOMO CHEMICAL CO
发明人： MATSUMOTO TOSHIKAZU
IPC分类号： G02B5/30 , C09J7/38 , C09J11/06 , C09J133/04 , G02F1/1335 , G02F1/13363 , H01L27/32
摘要： 편광판, 위상차필름과점착제층을갖는원편광판으로서, 상기편광판은, 두께가 15 ㎛이하의편광자를포함하고, 상기위상차필름은양의복굴절성을갖는위상차층을포함하며, 상기점착제층은, (메트)아크릴산알킬에스테르 80∼96 중량%, 환(방향환또는지방족환) 함유단량체 3∼15 중량% 및극성작용기함유단량체 0.1∼5 중량%의공중합체이고, 중량평균분자량 100만∼200만, 분자량분포 3∼7의아크릴수지(A) 100 중량부에가교제(B) 0.01∼5 중량부를포함하는점착제조성물로형성하며, 겔분율이 60∼99 중량%의것인원편광판.

2. 发明公开

KR20210009330A 편광판 및 표시 장치 审中-公开
公开(公告)号：KR20210009330A
公开(公告)日：2021-01-26
申请号：KR20207034944
申请日：2019-04-04
申请人： SUMITOMO CHEMICAL CO
发明人： NAKAMURA DAICHI , MATSUMOTO TOSHIKAZU
IPC分类号： G02B5/30 , G02B1/04 , G02B1/14 , H01L27/32
摘要： [과제] 본발명의목적은, 위상차필름을구비하는원편광판으로서, 고온환경하에둔 후에도반사색상의변화가작은원편광판을제공하는것이다. [해결수단] 편광판과위상차필름을갖는원편광판으로서, 상기위상차필름은플러스의복굴절성을갖는위상차층을포함하고, 상기편광판은, 두께가 15 ㎛이하인편광자를포함하고, 또한상기편광자의양면에보호필름을가지며, 상기편광자와상기위상차필름사이의보호필름이마이너스의복굴절성을갖는무배향필름인것을특징으로하는원편광판.

3. 发明公开

KR20200129150A 적층체, 복합 편광판 및 화상 표시 장치 审中-公开
公开(公告)号：KR20200129150A
公开(公告)日：2020-11-17
申请号：KR20207029069
申请日：2019-03-07
申请人： SUMITOMO CHEMICAL CO
发明人： MATSUMOTO TOSHIKAZU
IPC分类号： B32B7/12 , B32B7/023 , C09J11/06 , C09J123/12 , C09J123/22 , G02B5/30 , H01L27/32 , H05B33/02 , H05B33/14
摘要： 본발명의목적은고온고습환경하에서도투명도전층의저항변화율이작은적층체를제공하는데 있다. 또한, 본발명에서는, 상기적층체를이용한복합편광판및 화상표시장치를제공하는것도목적으로한다. 본발명은투명도전층과온도 40℃, 상대습도 92%R.H.에있어서의투습도가 100 g/(㎡·day) 이하인점접착제층이서로접하여적층되어있는것을특징으로하는적층체를제공한다. 점접착제층은, 고무계점착제나폴리올레핀계점착제인것이바람직하다.

4. 发明公开

KR20200130837A 편광판 및 그것을 이용한 화상 표시 장치 审中-公开
公开(公告)号：KR20200130837A
公开(公告)日：2020-11-20
申请号：KR20207028686
申请日：2019-03-07
申请人： SUMITOMO CHEMICAL CO
发明人： SHIRAISHI TAKAYUKI , MATSUMOTO TOSHIKAZU
IPC分类号： G02B5/30 , C09J7/38 , C09J123/08 , C09J123/22 , G02B1/04 , G02F1/1335 , H01L27/32
摘要： 본발명의목적은고온고습환경하에서도요오드손실이억제된편광판을제공하는데 있다. 본발명은편광필름의한쪽의면에접착제층을통해보호필름이적층되고, 다른한쪽의면에점착제층을구비하는편광판으로서, 상기편광필름은, 친수성고분자필름에요오드가흡착된필름이고, 상기접착제층및 상기점착제층은, 모두온도 40℃, 상대습도 92%R.H.에있어서의투습도가 100 g/(㎡·day) 이하인것을특징으로하는편광판을제공한다.

5. 发明公开

KR20200130828A 원편광판 및 그것을 이용한 화상 표시 장치 审中-公开
公开(公告)号：KR20200130828A
公开(公告)日：2020-11-20
申请号：KR20207026859
申请日：2019-03-07
申请人： SUMITOMO CHEMICAL CO
发明人： MATSUMOTO TOSHIKAZU
IPC分类号： G02B5/30 , B32B7/023 , C09J123/06 , C09J123/08 , H01L27/32
摘要： 본발명의목적은, 시인측에커버유리가적층된상태에서고온환경하에놓인경우라도, 중앙부와주변부에서반사광의색조가균일한원편광판을제공하는것에있다. 본발명은, 편광필름과, 점접착제층과, 위상차필름을이 순서로구비하고, 상기점접착제층은온도 40℃, 상대습도 92% R.H.에있어서의투습도가 100 g/(㎡·일) 이하이고, 상기위상차필름은λ/4판으로서기능하며, 액정화합물로이루어지는층을포함하는원편광판을제공한다.

6. 发明专利

JP2017116595A 偏光板有权
公开(公告)号：JP2017116595A
公开(公告)日：2017-06-29
申请号：JP2015248796
申请日：2015-12-21
申请人：住友化学株式会社 , Sumitomo Chemical Co Ltd
发明人： LU YI HUA , MIYAMOTO HIROSHI , MATSUMOTO TOSHIKAZU
IPC分类号： G02B5/30
CPC分类号： G02B5/30 , G09F9/30 , H01L27/32 , H01L51/50 , H05B33/02
摘要：【課題】本発明は、偏光子および反射型偏光板の収縮に起因する反りが抑制された偏光板を提供することを目的とする。さらに、本発明は、例えば、液晶セルのガラスパネルに貼合される粘着剤の凝集破壊も抑制された偏光板を提供することを目的とする。【解決手段】反射型偏光板と、第1の粘着剤層と、偏光子と、保護フィルムと、第2の粘着剤層とがこの順で積層された偏光板であって、前記反射型偏光板における第1の粘着剤層側表面から、前記第2の粘着剤層における前記保護フィルムとは反対側の表面までの層間厚みが、60μm以下であり、前記保護フィルムの85℃における引張弾性率が、2500MPa以下である、偏光板。【選択図】図1

7. 发明专利

JP2011227418A Polarizing plate, method for manufacturing the same, and ips mode liquid crystal display device using the same 审中-公开
标题翻译：极化板，其制造方法和使用其的IPS模式液晶显示装置
公开(公告)号：JP2011227418A
公开(公告)日：2011-11-10
申请号：JP2010099509
申请日：2010-04-23
申请人： Sumitomo Chemical Co Ltd , 住友化学株式会社
发明人： MATSUMOTO TOSHIKAZU , SIN GI YEON
IPC分类号： G02B5/30 , G02F1/1335
摘要： PROBLEM TO BE SOLVED: To provide a polarizing plate capable of inhibiting a color shift in a diagonal direction without damaging features of an IPS mode liquid crystal display device having a wide view angle, having excellent durability in an environment of cold impact testing, and to provide an advantageous method for manufacturing the polarizing plate.SOLUTION: A polarizing plate comprising transparent protection films disposed on both sides of a polarizing film is provided. At least one of the transparent protection films and the polarizing film of the polarizing plate are bonded via an adhesive comprising a water solution containing polyvinyl alcohol resin and alcohol. A method for manufacturing a polarizing plate by laminating transparent protection films on both sides of a polarizing film via adhesives is also provided. At least one of the adhesive comprises a water solution containing polyvinyl alcohol resin and alcohol, and the polarizing film and the transparent protection film are laminated via the water solution adhesive and subsequently dried.
摘要翻译：要解决的问题：提供一种能够抑制对角线方向的色移而不损害具有宽视角的IPS模式液晶显示装置的特征的偏光板，在冷冲击试验的环境中具有优异的耐久性并且提供了制造偏振片的有利方法。
解决方案：提供一种偏振片，其包括设置在偏振膜两侧的透明保护膜。通过包含含有聚乙烯醇树脂和醇的水溶液的粘合剂将偏振片的透明保护膜和偏振膜中的至少一个粘合。还提供了通过粘合剂在偏振膜两侧层压透明保护膜来制造偏振片的方法。粘合剂中的至少一种包含含有聚乙烯醇树脂和醇的水溶液，并且通过水溶性粘合剂层压偏光膜和透明保护膜，随后干燥。版权所有（C）2012，JPO＆INPIT

8. 发明专利

JP2011170234A Liquid crystal display device 审中-公开
标题翻译：液晶显示装置
公开(公告)号：JP2011170234A
公开(公告)日：2011-09-01
申请号：JP2010035761
申请日：2010-02-22
申请人： Sumitomo Chemical Co Ltd , 住友化学株式会社
发明人： MATSUMOTO TOSHIKAZU , SHIN KIEN
IPC分类号： G02F1/1335 , B32B7/02 , C09J129/04 , C09J163/00 , G02B5/30 , G02F1/13357
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystal display device having little warpage of a liquid crystal panel even after being placed in a hot wet environment and showing no display irregularity. SOLUTION: The liquid crystal display device includes: a liquid crystal cell 10 having two cell substrates 11, 12 and a liquid crystal layer 15 interposed therebetween; a front-side polarizing plate 20 layered in the viewing side of the liquid crystal cell across a first adhesive layer 40; a back-side polarizing plate 30 layered in the opposite side to the viewing side of the liquid crystal cell across a second adhesive layer 50; and a back light unit 70 disposed outside the backside polarizing plate 30. The front polarizing plate 20 and the back polarizing plate 30 include polarizing films 21, 31 and transparent protective films 25, 26 and 36, 37 disposed on both sides of the polarizing films, respectively. The ratio W 1 /W 2 of the moisture percentage W 1 of the front-side polarizing plate 20 to the moisture percentage W 2 of the back-side polarizing plate 30 is 1.0 or more and 1.2 or less. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：即使在放置在潮湿的湿环境中并且没有显示不规则的情况下，也能提供液晶面板几乎没有弯曲的液晶显示装置。解决方案：液晶显示装置包括：具有两个单元基板11,12的液晶单元10和夹在其间的液晶层15; 层叠在液晶单元的观看侧的前侧偏振片20，穿过第一粘合层40; 在第二粘合剂层50上与液晶单元的观察侧相反的一侧层叠的背面偏振板30; 以及设置在背面偏振板30的外侧的背光单元70.前偏振板20和后偏振板30包括偏振膜21,31和设置在偏振膜两侧的透明保护膜25,26,36,37 ，分别。前侧偏光板20的水分百分比W 1 与水分百分比W 的比例W 1 / W 2 背面侧偏振板30的2 为1.0以上且1.2以下。版权所有（C）2011，JPO＆INPIT

9. 发明专利

JP2011106938A Method for inspecting polarization plate 审中-公开
标题翻译：检查极化板的方法
公开(公告)号：JP2011106938A
公开(公告)日：2011-06-02
申请号：JP2009261633
申请日：2009-11-17
申请人： Sumitomo Chemical Co Ltd , 住友化学株式会社
发明人： MATSUMOTO TOSHIKAZU , KOBAYASHI SHINJI
IPC分类号： G01N21/892 , G01N21/958
摘要： PROBLEM TO BE SOLVED: To provide an inspection method for simply detecting a minute crack existing in a polarization plate.
SOLUTION: The inspection method of the polarization plate is provided. In the inspection method, one surface of the polarization plate 10 is irradiated with light from a light source 20 so as to have an angle θ of 20-70° to one surface. A magnifying convex lens 50 is disposed so as to be parallel to the other surface on the side of the other surface of the polarization plate 10. In a portion in which the minute crack exists in the polarization plate 10, it is inspected whether the minute crack exists or not by utilizing a characteristic for irregularly reflecting light 30 entering from the light source 20 to the polarization plate 10, and observing the light after it passes through the magnifying convex lens 50. When a heat shock test is conducted in a state that the polarization plate is applied to a glass plate through an adhesive, the minute crack is generated, and it is difficult to identify the minute crack when irradiated with light in the normal direction of the polarization plate. The method is effective to inspect the minute crack of the polarization plate.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供简单地检测偏振板中存在的微小裂纹的检查方法。
解决方案：提供偏光板的检查方法。在检查方法中，偏振板10的一个表面被来自光源20的光照射成与一个表面成20-70°的角度θ。放大凸透镜50配置成与偏光板10的另一面的另一面平行。在偏光板10中存在微小裂纹的部分中，检查分光通过利用从光源20进入偏光板10的不规则反射光30的特性和通过放大凸透镜50后观察光的特性，存在或不存在裂纹。当进行热冲击试验时，通过粘合剂将偏光板施加到玻璃板上，产生微小裂纹，并且在偏光板的法线方向照射光时难以识别微小裂纹。该方法有效地检查偏振板的微小裂纹。版权所有（C）2011，JPO＆INPIT

10. 发明专利

JP2010091606A Composite polarizing plate for ips mode liquid crystal display device, and ips mode liquid crystal display device 审中-公开
标题翻译：用于IPS模式液晶显示装置的复合极化板和IPS模式液晶显示装置
公开(公告)号：JP2010091606A
公开(公告)日：2010-04-22
申请号：JP2008258486
申请日：2008-10-03
申请人： Sumitomo Chemical Co Ltd , 住友化学株式会社
发明人： MATSUMOTO TOSHIKAZU , SHIN KIEN
IPC分类号： G02B5/30 , C08J5/18 , G02F1/13363
摘要： PROBLEM TO BE SOLVED: To provide a composite polarizing plate that suppresses a color shift without deteriorating the characteristics of an IPS mode liquid crystal display device with a wide viewing angle, and which is excellent in durability because a polarizing film and a retardation film are integrated. SOLUTION: The composite polarizing plate is formed by stacking a polarizing film, transparent protective films and a retardation film, wherein the transparent protective film disposed on the retardation film side has an in-plane retardation of ≤10 nm and an absolute value of a thickness-direction retardation is ≤10 at 590 nm wavelength, and an absolute value of a thickness-direction retardation at 480-750 nm wavelength of ≤15, the retardation film disposed on the outer side thereof has an in-plane retardation of 100-300 nm at 590 nm wavelength, and the retardation film satisfies the expression (1): 0.1≤(nx-nz)/(nx-ny)≤0.7 for light of 590 nm wavelength, where nx, ny and nz represent refractive indexes in the in-plane slow-axis direction, in the in-plane fast-axis direction and in the thickness direction, respectively. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题：提供抑制色移而不会劣化具有宽视角的IPS模式液晶显示装置的特性的复合偏振片，并且由于偏振膜和延迟而具有优异的耐久性电影集成。解决方案：复合偏振片通过层叠偏振膜，透明保护膜和延迟膜而形成，其中设置在延迟膜侧的透明保护膜的面内延迟为≤10nm，绝对值为在590nm波长下的厚度方向相位差为≤10，480〜750nm波长的厚度方向相位差的绝对值为≤15，其外侧的延迟膜的面内相位差对于590nm波长的光，延迟膜满足式（1）：0.1≤（nx-nz）/（nx-ny）≤0.7，其中nx，ny和nz表示折射率在面内的慢轴方向，面内快轴方向和厚度方向上的指标。版权所有（C）2010，JPO＆INPIT

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