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公开(公告)号：US11447605B2
公开(公告)日：2022-09-20
申请号：US14983140
申请日：2015-12-29
Applicant: LG DISPLAY CO., LTD.
Inventor： Taeheon Kim , SuSeok Choi , Yong-Su Ham , YongWoo Lee , MyungJin Lim , Seulgi Choi
IPC: G06F3/041 , B32B27/28 , G06F3/01 , B32B27/06 , B32B27/08 , C08G77/24 , C08J5/18 , C09D183/08 , C08L83/08 , C08L83/00 , B32B7/12 , C08K5/56 , C08G77/20 , C08G77/12 , C08G77/38
Abstract: Provided is a touch sensitive device including an electroactive film, a display device including the same, and a method of manufacturing the electroactive film. The touch sensitive device of the present disclosure includes an electroactive film including a siloxane polymer having a fluoro group or a chloro group bonded to a part of the backbone, and the electroactive film has a dielectric constant that is improved by 15% or more by elongation at an elongation rate of 100% or more.
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公开(公告)号：US11368771B2
公开(公告)日：2022-06-21
申请号：US17177058
申请日：2021-02-16
Applicant: LG Display Co., Ltd.
Inventor： Taeheon Kim , Chiwan Kim , Sung-Eui Shin , YongWoo Lee , Kyungyeol Ryu , YuSeon Kho , YongGyoon Jang
IPC: H04R1/02 , H04R17/00 , H01L41/09 , H01L27/20 , H01L41/053 , H01L41/193
Abstract: A display apparatus includes a display panel configured to display an image and a sound generating device on a rear surface of the display panel. The sound generating device is configured to vibrate the display panel to generate sound. The sound generating device includes a first structure and a first passivation layer on one side of the first structure, at least a portion of the first passivation layer having a non-flat shape.
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公开(公告)号：US11297439B2
公开(公告)日：2022-04-05
申请号：US17013035
申请日：2020-09-04
Applicant: LG Display Co., Ltd.
Inventor： Sung Eui Shin , Taeheon Kim , Kyungyeol Ryu , YongGyoon Jang , Chiwan Kim , YongWoo Lee , YuSeon Kho
Abstract: A display apparatus including a flexible vibration module and a method of manufacturing the flexible vibration module are provided. A display apparatus includes: a display panel configured to display an image, and a flexible vibration module on a rear surface of the display panel, the flexible vibration module configured to vibrate the display panel, the flexible vibration module including: a plurality of first portions having a piezoelectric characteristic, and a plurality of second portions respectively between pairs of the plurality of first portions, the plurality of second portions having flexibility.
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公开(公告)号：US11073914B2
公开(公告)日：2021-07-27
申请号：US16720587
申请日：2019-12-19
Applicant: LG Display Co., Ltd.
Inventor： Chiwan Kim , Taeheon Kim , Sung-Eui Shin , YongWoo Lee , Kyungyeol Ryu , YuSeon Kho , YongGyoon Jang
IPC: G06F3/01 , H01L27/32 , G02F1/1368 , G02F1/1333 , G06F3/041 , B60K37/04 , B06B1/06 , G06F3/044 , B60R11/02 , B60R11/00
Abstract: The present disclosure relates to a vibration generation device, a display apparatus including the vibration generation device, and a vehicle including the vibration generation device. A vibration generation device includes a piezoelectric ceramic part having a certain interval, a piezoelectric material layer between the piezoelectric ceramic parts, and an electrode part configured to provide electric field to one or more of the piezoelectric ceramic part and the piezoelectric material layer.
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公开(公告)号：US20210136314A1
公开(公告)日：2021-05-06
申请号：US17145623
申请日：2021-01-11
Applicant: LG Display Co., Ltd.
Inventor： Sung-Eui Shin , Chiwan Kim , Taeheon Kim , YongWoo Lee , Kyungyeol Ryu , YuSeon Kho
IPC: 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.
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Patent Agency Ranking
公开(公告)号：US10805736B2
公开(公告)日：2020-10-13
申请号：US16443454
申请日：2019-06-17
Applicant: LG Display Co., Ltd.
Inventor： Sung Eui Shin , Taeheon Kim , Kyungyeol Ryu , YongGyoon Jang , Chiwan Kim , YongWoo Lee , YuSeon Kho
Abstract: A display apparatus including a flexible vibration module and a method of manufacturing the flexible vibration module are provided. A display apparatus includes: a display panel configured to display an image, and a flexible vibration module on a rear surface of the display panel, the flexible vibration module configured to vibrate the display panel, the flexible vibration module including: a plurality of first portions having a piezoelectric characteristic, and a plurality of second portions respectively between pairs of the plurality of first portions, the plurality of second portions having flexibility.
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公开(公告)号：US20200314556A1
公开(公告)日：2020-10-01
申请号：US16443090
申请日：2019-06-17
Applicant: LG Display Co., Ltd.
Inventor： YongWoo LEE , Yong-Su HAM , Taeheon Kim , Sung-Eui SHIN
IPC: H04R17/00 , H01L41/047 , H01L41/08 , H01L41/09 , H01L41/37 , H01L41/083
Abstract: A flexible vibration module is disclosed. The flexible vibration module includes a piezoelectric composite layer, including: a plurality of piezoelectric portions each having a piezoelectric characteristic, where at least two of the plurality of piezoelectric portions have different sizes; and a flexible portion between the plurality of piezoelectric portions.
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公开(公告)号：US10705613B2
公开(公告)日：2020-07-07
申请号：US15820204
申请日：2017-11-21
Applicant: LG Display Co., Ltd.
Inventor： Yong-Su Ham , Taeheon Kim , YongWoo Lee , Kyungyeol Ryu , YuSeon Kho , MyungJin Lim
IPC: G06F3/01 , G06F3/041 , H01L41/047 , H01L41/193 , H01L41/113 , G02F1/1333 , G02F1/1335 , G02F1/1362 , G02F1/1368 , G06F3/044
Abstract: Provided is a display device. The display device includes a display panel, a vibration transfer layer, and a touch sensitive element. The vibration transfer layer is disposed under the display panel and has a plurality of openings. The touch sensitive element is disposed under the vibration transfer layer.
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29.发明授权公开(公告)号：US10133352B2
公开(公告)日：2018-11-20
申请号：US15355922
申请日：2016-11-18
Applicant: LG DISPLAY CO., LTD.
Inventor： YongWoo Lee , Yong-Su Ham , Taeheon Kim , YuSeon Kho , MyungJin Lim , Seulgi Choi
Abstract: Provided is a contact sensitive device. The contact sensitive device includes an electroactive layer, a plurality of first electrodes, a plurality of second electrodes, and a bonding layer. The plurality of first electrodes is disposed on one surface of the electroactive layer and the plurality of second electrodes is disposed on the other surface of the electroactive layer. The bonding layer covers one surface of the electroactive layer and consists of a first part corresponding to the plurality of first electrodes and a second part excluding the first part. The first part and the second part of the bonding layer have different elastic moduli.
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公开(公告)号：US09748469B2
公开(公告)日：2017-08-29
申请号：US14979769
申请日：2015-12-28
Applicant: LG DISPLAY CO., LTD.
Inventor： MyungJin Lim , SuSeok Choi , Yong-Su Ham , Taeheon Kim , YongWoo Lee , Seulgi Choi
IPC: H01L41/083 , H05K5/00 , H01L41/04 , H05K1/02 , G06F1/16 , H01L41/193 , G09F9/30 , H01L41/09 , H01L41/277
CPC classification number: H01L41/083 , G06F1/1652 , G06F3/016 , G09F9/301 , H01L41/042 , H01L41/0926 , H01L41/193 , H01L41/277 , H05K1/028 , H05K5/0017 , H05K2201/05
Abstract: Provided is a multilayer actuator and a display device comprising the same with improved driving displacement that includes, for example, a plurality of electroactive layers, wherein the electroactive layers comprise a ferroelectric polymer, and polarization directions of all electroactive layers are substantially the same.
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