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公开(公告)号：US20200207920A1
公开(公告)日：2020-07-02
申请号：US16798000
申请日：2020-02-21
Applicant: LG Display Co., Ltd.
Inventor： TaeHeon Kim , YongSu Ham , YongWoo Lee , KyungYeol Ryu , YuSeon Kho , MyungJin Lim , SeulGi Choi
Abstract: Provided are a touch sensitive element and a display device including the same. The touch sensitive element according to an exemplary aspect of the present disclosure includes an electroactive layer formed of a linear boron nitride polymer and an electrode disposed on at least one surface of the electroactive layer. Therefore, a piezoelectricity of the electroactive layer is improved to improve vibration strength of the touch sensitive element and significantly improve heat resistance.
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公开(公告)号：US11435828B2
公开(公告)日：2022-09-06
申请号：US16163262
申请日：2018-10-17
Applicant: LG DISPLAY CO., LTD.
Inventor： ChiWan Kim , TaeHeon Kim , SungEui Shin , YongWoo Lee , KyungYeol Ryu , YuSeon Kho
IPC: G06F3/041 , G06F3/01 , C08G79/025
Abstract: Provided is a touch sensitive device including an electroactive layer formed of an electroactive matrix, wherein the electroactive matrix has a structure in which a piezoelectric ceramic and an electroactive polymer (EAP) are bonded and an electrode disposed on at least one surface of the electroactive layer. According to an exemplary embodiment of the present disclosure, the touch sensitive device uses an electroactive matrix has an excellent transparency, can be made thin, and has a high piezoelectric property so that the light transmittance and the vibration intensity of the touch sensitive device can be improved.
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公开(公告)号：US20180150138A1
公开(公告)日：2018-05-31
申请号：US15820055
申请日：2017-11-21
Applicant: LG Display Co., Ltd.
Inventor： TaeHeon Kim , SuSeok Choi , YongSu Ham , YongWoo Lee , KyungYeol Ryu , YuSeon Kho
CPC classification number: G06F3/016 , G06F3/041 , G06F3/044 , G06F2203/04111 , G06F2203/04112
Abstract: The touch sensitive element according to an exemplary embodiment of the present disclosure includes an electroactive layer, an electrode, and a plurality of beads. The electroactive layer includes an electroactive polymer. The electrode is disposed on at least one surface of the electroactive layer. The plurality of beads is dispersed in the electroactive layer and has a diameter larger than the thickness of the electroactive layer.
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公开(公告)号：US10752737B2
公开(公告)日：2020-08-25
申请号：US16798000
申请日：2020-02-21
Applicant: LG Display Co., Ltd.
Inventor： TaeHeon Kim , YongSu Ham , YongWoo Lee , KyungYeol Ryu , YuSeon Kho , MyungJin Lim , SeulGi Choi
Abstract: Provided are a touch sensitive element and a display device including the same. The touch sensitive element according to an exemplary aspect of the present disclosure includes an electroactive layer formed of a linear boron nitride polymer and an electrode disposed on at least one surface of the electroactive layer. Therefore, a piezoelectricity of the electroactive layer is improved to improve vibration strength of the touch sensitive element and significantly improve heat resistance.
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Patent Agency Ranking
公开(公告)号：US10459549B2
公开(公告)日：2019-10-29
申请号：US15822188
申请日：2017-11-26
Applicant: LG Display Co., Ltd.
Inventor： YuSeon Kho , YongWoo Lee , YongSu Ham , TaeHeon Kim , KyungYeol Ryu , MyungJin Lim , SeulGi Choi
IPC: G06F3/01 , G06F3/041 , C09D127/16 , H01L41/193
Abstract: The present disclosure related to a touch sensitive element and a display device including the same. The touch sensitive element according to an exemplary aspect of the present disclosure includes an electroactive film which is formed of a polyvinylidene fluoride (PVDF) based polymer and a cyanide (CN) based polymer.
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公开(公告)号：US10353472B2
公开(公告)日：2019-07-16
申请号：US15820055
申请日：2017-11-21
Applicant: LG Display Co., Ltd.
Inventor： TaeHeon Kim , SuSeok Choi , YongSu Ham , YongWoo Lee , KyungYeol Ryu , YuSeon Kho
Abstract: The touch sensitive element according to an exemplary embodiment of the present disclosure includes an electroactive layer, an electrode, and a plurality of beads. The electroactive layer includes an electroactive polymer. The electrode is disposed on at least one surface of the electroactive layer. The plurality of beads is dispersed in the electroactive layer and has a diameter larger than the thickness of the electroactive layer.
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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.
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公开(公告)号：US10372218B2
公开(公告)日：2019-08-06
申请号：US15798164
申请日：2017-10-30
Applicant: LG Display Co., Ltd.
Inventor： YongWoo Lee , YongSu Ham , TaeHeon Kim , KyungYeol Ryu , YuSeon Kho , MyungJin Lim , SeulGi Choi
IPC: G06F3/01 , H01L41/09 , G02F1/1333 , G02F1/1343 , G06F3/041 , G06F3/044 , H01L41/047 , H01L41/08 , H01L41/193 , H01L27/32
Abstract: There is provided a touch sensitive element including an electroactive layer, and an electrode disposed on at least one surface of the electroactive layer. The electroactive layer has a first portion having a first thickness and a second portion which has a second thickness different from the first thickness and is in contact with the first portion at an outside of the first portion.
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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.
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