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    Polarizing plate and optical display apparatus comprising the same
    1.
    发明授权
    Polarizing plate and optical display apparatus comprising the same 有权

    公开(公告)号：US12271016B2

    公开(公告)日：2025-04-08

    申请号：US18312960

    申请日：2023-05-05

    Applicant: SAMSUNG SDI CO., LTD.

    Inventor： Jun Mo Koo ,  Bong Choon Kim ,  Dong Yoon Shin ,  Jung Hun You ,  Sang Hum Lee

    IPC: G02B5/30

    Abstract: A polarizing plate and an optical display apparatus are provided. A polarizing plate includes: a polarizer; and a first retardation layer and a second retardation layer sequentially stacked on a lower surface of the polarizer, and the first retardation layer has a short wavelength dispersion of about 1 to about 1.03, a long wavelength dispersion of about 0.98 to about 1, and an in-plane retardation of about 180 nm to about 220 nm at a wavelength of 550 nm, the second retardation layer has a short wavelength dispersion of about 1 to about 1.1, a long wavelength dispersion of about 0.96 to about 1, and an in-plane retardation Re of about 70 nm to about 120 nm at a wavelength of 550 nm, and a ratio of out-of-plane retardation of the second retardation layer at a wavelength of 550 nm to thickness thereof is about −33 nm/μm to about −15 nm/μm.

    Polarizing plate and optical display apparatus comprising the same
    4.
    发明授权
    Polarizing plate and optical display apparatus comprising the same 有权

    公开(公告)号：US11681085B2

    公开(公告)日：2023-06-20

    申请号：US16941252

    申请日：2020-07-28

    Applicant: SAMSUNG SDI CO., LTD.

    Inventor： Jun Mo Koo ,  Bong Choon Kim ,  Dong Yoon Shin ,  Jung Hun You ,  Sang Hum Lee

    IPC: G02B5/30

    CPC classification number: G02B5/3083 ,  G02B5/3041

    Abstract: A polarizing plate and an optical display apparatus are provided. A polarizing plate includes: a polarizer; and a first retardation layer and a second retardation layer sequentially stacked on a lower surface of the polarizer, and the first retardation layer has a short wavelength dispersion of about 1 to about 1.03, a long wavelength dispersion of about 0.98 to about 1, and an in-plane retardation of about 180 nm to about 220 nm at a wavelength of 550 nm, the second retardation layer has a short wavelength dispersion of about 1 to about 1.1, a long wavelength dispersion of about 0.96 to about 1, and an in-plane retardation Re of about 70 nm to about 120 nm at a wavelength of 550 nm, and a ratio of out-of-plane retardation of the second retardation layer at a wavelength of 550 nm to thickness thereof is about −33 nm/μm to about −15 nm/μm.

    POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME
    8.
    发明申请
    POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY INCLUDING THE SAME 审中-公开
    偏光板和液晶显示器，包括它们

    公开(公告)号：US20160062011A1

    公开(公告)日：2016-03-03

    申请号：US14838327

    申请日：2015-08-27

    Applicant: SAMSUNG SDI CO., LTD.

    Inventor： Kwang Ho Shin ,  Dong Yoon Shin ,  Yeon Ju Jung ,  Hae Ryong Chung

    IPC: G02B5/30 ,  G02B1/14 ,  G02F1/1335

    CPC classification number: G02B5/305 ,  G02B1/14 ,  G02B5/3033 ,  G02B5/3083 ,  G02F1/133528 ,  G02F2202/40

    Abstract: A polarizing plate includes a polarizer and a polyester film formed on an upper side of the polarizer. The polyester film has a ratio of MD elongation to TD elongation of about 1:6 to about 1:30. An angle between the transmission axis of the polarizer and the TD of the polyester film ranges from about −7° to about +7°. In some embodiments, a liquid crystal display includes the polarizing plate. The polarizing plate and the liquid crystal display can reduce the occurrence of rainbow spots, realize a high degree of polarization, and exhibit little variation in the retardation and dimensions under high temperature/high humidity conditions.

    Abstract translation: 偏振片包括形成在偏振片的上侧的偏振片和聚酯膜。 聚酯膜的MD延伸率与TD伸长率之比为约1:6至约1:30。 偏振片的透射轴与聚酯薄膜的TD之间的角度为约-7°至约+7°。 在一些实施例中，液晶显示器包括偏振片。 偏光板和液晶显示器可以减少彩虹斑点的发生，实现高度的偏振度，并且在高温/高湿度条件下的延迟和尺寸变化不大。

    POLARIZING PLATE, LIQUID CRYSTAL DISPLAY COMPRISING THE SAME AND METHOD FOR PREPARING POLARIZING PLATE
    9.
    发明申请
    POLARIZING PLATE, LIQUID CRYSTAL DISPLAY COMPRISING THE SAME AND METHOD FOR PREPARING POLARIZING PLATE 有权
    包含其的液晶板，液晶显示器和制备极化板的方法

    公开(公告)号：US20160018564A1

    公开(公告)日：2016-01-21

    申请号：US14804313

    申请日：2015-07-20

    Applicant: SAMSUNG SDI CO., LTD.

    Inventor： Kwang Ho Shin ,  Eun Su Park ,  Dong Yoon Shin ,  Hae Ryong Chung

    IPC: G02B1/08 ,  G02B5/30 ,  G02F1/1335

    CPC classification number: G02B5/3083 ,  G02B1/04 ,  G02F1/133528 ,  C08L67/00 ,  C08L29/04

    Abstract: A polarizing plate includes a polarizer and a polyester film formed on at least one surface of the polarizer. The polyester film includes a polyester base film and a primer layer formed on at least one surface of the polyester base film. The polyester film contains about 0.1 wt % to about 5 wt % of a UV absorbent. In addition, a liquid crystal display includes the polarizing plate. A method of fabricating a polarizing plate includes preparing a multilayer film containing about 0.1 wt % to about 5 wt % of a UV absorbent, stretching the multilayer film to about 2 to about 10 times its initial length in a transverse direction (TD) to prepare a polyester film, and attaching the polyester film to at least one surface of a polarizer. The multilayer film comprises a polyester base film and a primer layer on at least one surface of the polyester base film.

    Abstract translation: 偏振片包括在偏振片的至少一个表面上形成的偏振片和聚酯膜。 聚酯膜包括在聚酯基膜的至少一个表面上形成的聚酯基膜和底漆层。 聚酯薄膜含有约0.1重量％至约5重量％的UV吸收剂。 此外，液晶显示器包括偏振片。 制造偏光板的方法包括制备含有约0.1重量％至约5重量％的UV吸收剂的多层膜，将多层膜拉伸至其横向（TD）的初始长度的约2至约10倍以制备 聚酯膜，并将聚酯膜附着到偏振片的至少一个表面上。 多层膜在聚酯基膜的至少一个表面上包含聚酯基膜和底漆层。

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