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    Display apparatus
    41.
    发明授权
    Display apparatus 有权

    公开(公告)号：US10542235B2

    公开(公告)日：2020-01-21

    申请号：US15971077

    申请日：2018-05-04

    Applicant: LG Display Co., Ltd.

    Inventor： Sung-Eui Shin ,  Chiwan Kim ,  Taeheon Kim ,  YongWoo Lee ,  Kyungyeol Ryu ,  YuSeon Kho

    IPC: H04R1/00 ,  H04R25/00 ,  H04N5/64 ,  H01L51/52 ,  G02F1/1333 ,  H04R17/00 ,  H04R1/02

    Abstract: A display apparatus includes a display panel, a back cover accommodating the display panel, and a sound output unit including at least one sound output module disposed to overlap the display panel. The at least one sound output module includes a support plate including an uneven surface and a piezoelectric element attached on the uneven surface of the support plate and has a shape corresponding to the uneven surface of the support plate. Accordingly, a sound having a straight characteristic within an audible frequency domain may be output, thereby enhancing a sense of reality and an immersion of a viewer watching an image displayed by the display apparatus.

    Touch sensitive element and display device comprising the same
    43.
    发明授权
    Touch sensitive element and display device comprising the same 有权

    公开(公告)号：US10379617B2

    公开(公告)日：2019-08-13

    申请号：US15820215

    申请日：2017-11-21

    Applicant: LG Display Co., Ltd.

    Inventor： YuSeon Kho ,  YongSu Ham ,  TaeHeon Kim ,  YongWoo Lee ,  KyungYeol Ryu

    IPC: G06F3/01 ,  G06F3/041 ,  G06F3/044 ,  G02F1/1333

    Abstract: Provided are a touch sensitive element and a display device. A touch sensitive element according to an exemplary embodiment includes an electroactive layer including a plurality of electroactive films formed of an electroactive polymer; and a plurality of electrodes disposed on at least one surface of the electroactive layer. In this case, the plurality of electroactive films is configured by a first electroactive film, a second electroactive film, and one or more electroactive films between the first electroactive film and the second electroactive film. A modulus of one or more electroactive films is higher or lower than both a modulus of an electroactive film which is in contact with an upper surface and a modulus of an electroactive film which is in contact with a lower surface. The touch sensitive element according to the exemplary embodiment of the present disclosure may implement a sufficient vibration strength in all frequency domains.

    Touch Sensitive Element and Display Device Comprising the Same
    45.
    发明申请
    Touch Sensitive Element and Display Device Comprising the Same 审中-公开

    公开(公告)号：US20180157325A1

    公开(公告)日：2018-06-07

    申请号：US15820215

    申请日：2017-11-21

    Applicant: LG Display Co., Ltd.

    Inventor： YuSeon Kho ,  YongSu Ham ,  TaeHeon Kim ,  YongWoo Lee ,  KyungYeol Ryu

    IPC: G06F3/01 ,  G06F3/044 ,  G06F3/041 ,  G02F1/1333

    CPC classification number: G06F3/016 ,  G02F1/13338 ,  G06F3/041 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04112

    Abstract: Provided are a touch sensitive element and a display device. A touch sensitive element according to an exemplary embodiment includes an electroactive layer including a plurality of electroactive films formed of an electroactive polymer; and a plurality of electrodes disposed on at least one surface of the electroactive layer. In this case, the plurality of electroactive films is configured by a first electroactive film, a second electroactive film, and one or more electroactive films between the first electroactive film and the second electroactive film. A modulus of one or more electroactive films is higher or lower than both a modulus of an electroactive film which is in contact with an upper surface and a modulus of an electroactive film which is in contact with a lower surface. The touch sensitive element according to the exemplary embodiment of the present disclosure may implement a sufficient vibration strength in all frequency domains.

    Display apparatus
    46.
    发明授权
    Display apparatus 有权

    公开(公告)号：US12047743B2

    公开(公告)日：2024-07-23

    申请号：US18234203

    申请日：2023-08-15

    Applicant: LG Display Co., Ltd.

    Inventor： Chiwan Kim ,  Kyungyeol Ryu ,  YuSeon Kho ,  YongGyoon Jang

    IPC: H04R17/00 ,  G06F3/01 ,  H04R1/20 ,  H10N30/80

    CPC classification number: H04R17/00 ,  G06F3/016 ,  H04R1/20 ,  H10N30/80

    Abstract: A display apparatus includes: a display panel configured to display an image, and at least one vibration module on a rear surface of the display panel, the at least one vibration module including a piezoelectric composite layer including a plurality of sub-modules configured to vibrate the display panel, each of the plurality of sub-modules including: a plurality of first portions including a piezoelectric characteristic, and a plurality of second portions having flexibility, each of the plurality of second portions being between a respective pair of the plurality first portions, wherein the plurality of first portions in the respective sub-modules are arranged in a same direction or are partially arranged in different directions.

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