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    POLARIZING PLATE AND DISPLAY DEVICE
    3.
    发明申请
    POLARIZING PLATE AND DISPLAY DEVICE 有权

    公开(公告)号：US20210302638A1

    公开(公告)日：2021-09-30

    申请号：US17262498

    申请日：2019-11-04

    Applicant: LG CHEM, LTD.

    Inventor： Hyuk Yoon ,  Jun Won Chang ,  Jong Hyun Jung ,  Sun Kug Kim ,  Moon Soo Park

    IPC: G02B5/30 ,  C09K19/38 ,  C08F222/24

    Abstract: A polarizing plate and a display device including the same. The polarizing plate includes a retardation layer exhibiting ultraviolet blocking characteristics even in a state where the retardation layer does not include any ultraviolet absorber or light stabilizer. The polarizing plate can be used alone or in combination with an appropriate sunscreen or a light stabilizer as needed to selectively block ultraviolet rays in a region requiring blocking, without affecting display performance, such as color senses and image quality, of a display device. The polarizing plate can also be formed with a small thickness without requiring a separate ultraviolet blocking layer, and also has excellent durability, because the polarizing plate exhibits a certain ultraviolet blocking property even in the absence of an ultraviolet absorber or light stabilizer.

    OPTICAL FILM
    6.
    发明申请
    OPTICAL FILM 有权
    光学胶片

    公开(公告)号：US20150285978A1

    公开(公告)日：2015-10-08

    申请号：US14434677

    申请日：2013-11-29

    Applicant: LG CHEM, LTD.

    Inventor： Jun Won Chang ,  Su Young Ryu ,  Moon Su Park

    IPC: G02B5/30 ,  C09K19/38 ,  C09K19/54 ,  G02B1/16

    CPC classification number: G02B5/3016 ,  B29D11/00788 ,  B32B2457/202 ,  C09K19/3809 ,  C09K19/54 ,  G02B1/14 ,  G02B1/16 ,  G02F1/133528 ,  G02F2202/022

    Abstract: Provided are an optical film and a display device including the same. The optical film may be disposed at the outermost side of a display device, such as a liquid crystal display or an organic light emitting display, or at an outside of a polarizing layer of the display in which the polarizing layer is disposed at a visible side. The film disposed as described above may overcome degradation of brightness that may occur when an observer watches an image with polarizing sunglasses. The optical film may also have hardness suitable for its use.

    Abstract translation: 提供了一种光学膜和包括该光学膜的显示装置。 光学膜可以设置在诸如液晶显示器或有机发光显示器的显示装置的最外侧，或者在偏振层设置在可见侧的显示器的偏振层的外侧 。 如上所述设置的胶片可以克服当观察者用偏光太阳镜观看图像时可能发生的亮度劣化。 光学膜也可以具有适用于其使用的硬度。

    OPTICAL DEVICE
    10.
    发明申请
    OPTICAL DEVICE 审中-公开

    公开(公告)号：US20200333660A1

    公开(公告)日：2020-10-22

    申请号：US16607311

    申请日：2018-04-25

    Applicant: LG Chem, Ltd.

    Inventor： Ji Hoon Park ,  Byoung Kun Jeon ,  Moon Soo Park ,  Jun Won Chang ,  Dae Hee Lee ,  Hye Min Yu ,  Young Shin Lee ,  Byung Sun Lee

    IPC: G02F1/1335 ,  G02F1/1337 ,  G02B5/30 ,  G02F1/137

    Abstract: An optical device is disclose herein. In some embodiments, an optical device includes an active liquid crystal element film, wherein the active liquid crystal element film comprises two base films, an active liquid crystal layer present between the two base films, wherein the active liquid crystal layer contains a liquid crystal compound and is capable of switching between a first oriented state and a second oriented state, and a polarizing coating layer, wherein the polarizing coating layer is present between one of the two base films and the active liquid crystal layer. The optical device is capable of varying transmittance, and can be used for various applications such as sunglasses, AR (augmented reality) or VR (virtual reality) eyewear, an outer wall of a building or a sunroof for a vehicle.

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