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    • 6. 发明公开
    • 보관 안정성이 우수한 광학 필름 및 이를 포함하는 편광판
    • 在低温下具有改善的储存稳定性的光学薄膜和包含其的极化板
    • KR1020130135668A
    • 2013-12-11
    • KR1020120059447
    • 2012-06-01
    • 주식회사 엘지화학
    • 김범석한창훈이대우강병일이남정곽상민엄준근윤석일이중훈박세정
    • G02B5/30
    • G02B5/3041B29C47/0021B29C55/02C08J5/18G02B1/14
    • The present invention relates to an optical film with excellent room temperature stability and a polarizing plate including the same and, more specifically, to an acrylic optical film having a thermal expansion coefficient of 5-30 ppm/K inclusive and moisture ratio of 0.8-2 wt% at a temperature 10-40°C exclusive and a polarizing plate including the same. The optical film according to the present invention has the moisture ratio and the thermal expansion coefficient of a specific range at the room temperature. Therefore, the polarizing plate of the present invention can mitigate curl which can be generated depending on the variation of temperature and moisture of keeping or usage environment after the polarizing plate is manufactured. The polarizing plate of the present invention can be used in an information electronic device including a polarizing plate with excellent curl characteristics and a display device including the same.
    • 本发明涉及室温稳定性优异的光学薄膜和包含该光学薄膜的偏光板,更具体地说,涉及热膨胀系数为5-30ppm / K且含水率为0.8-2的丙烯酸类光学薄膜 在10-40℃的温度下,重量%和包括该偏振片的偏光板。 根据本发明的光学膜具有在室温下的特定范围的湿度比和热膨胀系数。 因此,本发明的偏光板可以减轻根据制造偏光板后的保持温度和使用环境的温度和湿度的变化而产生的卷曲。 本发明的偏光板可以用于包括具有优异卷曲特性的偏光板的信息电子设备和包括该偏光板的显示装置。
    • 10. 发明公开
    • 접착제 조성물 및 이를 이용한 광학필름
    • 粘合组合物和使用它的光学膜
    • KR1020110035793A
    • 2011-04-06
    • KR1020090093628
    • 2009-09-30
    • 주식회사 엘지화학
    • 심화섭서은미김범석
    • C09J11/06C09J7/02
    • C09J11/06C09J7/38
    • PURPOSE: An adhesive composition is provided to avoid the degradation of optical properties and durability when applied to an optical film and to impart excellent adhesive property with a polarizer when an acryl film is used as a polarizer protection film. CONSTITUTION: An adhesive composition comprises a compound having an aziridine functional group represented by chemical formula 1. In chemical formula 1, R1 is hydrogen or C1-20 alkyl group; R2 is selected from the group consisting of an amide group(RC(O)NR'R''), ether group(RC(O)CR'), ester group(RC(O)OR'), carbonyl group(RC(O)R'), urethane group(RC(O)ONHR'), triazine and trivalent alcohol group; R3 and R4 are independently hydrogen or C1-20 alkyl group; and N is 1-6.
    • 目的:提供一种粘合剂组合物,以防止当应用于光学膜时光学性能和耐久性的劣化,并且当使用丙烯酸膜作为偏振器保护膜时,赋予偏振片优异的粘合性。 组成:粘合剂组合物包含具有由化学式1表示的氮丙啶官能团的化合物。在化学式1中,R 1为氢或C 1-20烷基; R2选自酰胺基(RC(O)NR'R“),醚基(RC(O)CR'),酯基(RC(O)OR'),羰基(RC( O)R'),氨基甲酸酯基(RC(O)ONHR'),三嗪和三价醇基; R3和R4独立地是氢或C1-20烷基; N为1-6。