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公开(公告)号：US11790686B2
公开(公告)日：2023-10-17
申请号：US17115286
申请日：2020-12-08
Applicant: LG Display Co., Ltd.
Inventor： YuSeon Kho , Yong-Su Ham , YongWoo Lee
IPC: H01L41/08 , G06V40/13 , G06F3/16 , G06F3/01 , A61B5/1172
CPC classification number: G06V40/1306 , G06F3/016 , G06F3/16 , A61B5/1172
Abstract: A composite piezoelectric element and an electronic device having the same are disclosed, in which the composite piezoelectric element includes insulating films and piezoelectric bodies, which are alternately arranged, wherein the piezoelectric bodies may be categorized into general piezoelectric bodies used as at least one of a haptic actuator, a speaker actuator and a receiver actuator, and a finger scan recognition piezoelectric body for finger scan recognition.
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公开(公告)号：US10963052B2
公开(公告)日：2021-03-30
申请号：US15798151
申请日：2017-10-30
Applicant: LG Display Co., Ltd.
Inventor： Seulgi Choi , Yong-Su Ham , Taeheon Kim , YongWoo Lee , Kyungyeol Ryu , YuSeon Kho , MyungJin Lim
IPC: G06F3/01 , G06F3/041 , G06F3/044 , G02F1/1333
Abstract: Provided are a touch sensitive element and a display device including the same. According to the exemplary embodiment of the present disclosure, a touch sensitive element, includes: an electroactive layer which is formed of electroactive polymer (EAP); an electrode which is disposed on at least one surface of the electroactive layer; and a hard coating layer which is disposed on the electroactive layer and the electrode and has a negative coefficient of thermal expansion (CTE). Therefore, vibration effect in a vertical direction is maximized and impact resistance may be improved.
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公开(公告)号：US10444891B2
公开(公告)日：2019-10-15
申请号：US14757438
申请日：2015-12-23
Applicant: LG DISPLAY CO., LTD.
Inventor： Yong-Su Ham , SuSeok Choi , Taeheon Kim , YongWoo Lee , MyungJin Lim , Seulgi Choi
IPC: G06F3/041 , G06F3/044 , G02F1/1333
Abstract: Provided is a touch panel. The touch panel includes a first substrate, a second substrate, a first electrode, a second electrode, a third electrode, and a dielectric layer. The second substrate faces the first substrate. The first electrode is on one surface of the first substrate. The second electrode is spaced apart from the first electrode on a same plane as the first electrode. The third electrode is on one surface of the second substrate and overlaps the first electrode and the second electrode. The dielectric layer is between the first electrode and the third electrode and between the second electrode and the third electrode and includes an anisotropic dielectric material.
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公开(公告)号：US10409408B2
公开(公告)日：2019-09-10
申请号：US15824646
申请日：2017-11-28
Applicant: LG DISPLAY CO., LTD.
Inventor： Kyungyeol Ryu , Yong-Su Ham , Taeheon Kim , YongWoo Lee , YuSeon Kho , MyungJin Lim , Seulgi Choi
IPC: C08L41/00 , G06F3/041 , H01L41/18 , C09D127/16 , C08F20/38 , H01L41/113 , H01L41/193 , C08F220/38
Abstract: The present disclosure relates to a touch sensitive element and a display device including the same. According to an exemplary embodiment of the present disclosure, the touch sensitive element includes an electroactive film which is formed of a fluorine based terpolymer and a polymer represented by Chemical Formula 1, wherein R is an ethyl group or a methyl group, and n is an integer of 1 or larger.
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公开(公告)号：US12047742B2
公开(公告)日：2024-07-23
申请号：US18213648
申请日：2023-06-23
Applicant: LG Display Co., Ltd.
Inventor： YongWoo Lee , Chiwan Kim , Taeheon Kim , Sung-Eui Shin , Kyungyeol Ryu , YuSeon Kho , YongGyoon Jang , Yong-Su Ham , Sungwook Ko
CPC classification number: H04R17/00 , G08B6/00 , H04R1/028 , H04R1/288 , H04R1/403 , H04R3/12 , H04R2499/15
Abstract: A display apparatus includes a display panel configured to display an image and a plurality of vibration generating devices on a rear surface of the display panel, the display panel being at least one of a vibration plate configured to output sound and a vibration plate configured to output a haptic vibration. Each of the plurality of vibration generating devices includes a first electrode under the display panel, a piezoelectric member under the first electrode, a damping member in a periphery the piezoelectric member, and a second electrode under the piezoelectric member.
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Patent Agency Ranking
公开(公告)号：US11843914B2
公开(公告)日：2023-12-12
申请号：US17542063
申请日：2021-12-03
Applicant: LG Display Co., Ltd.
Inventor： YuSeon Kho , Yong-Su Ham , YongWoo Lee
CPC classification number: H04R17/00 , B60Q9/00 , H04R1/025 , H04R2499/13
Abstract: A sound-generating apparatus and a vehicle including the same are provided. A sound-generating apparatus includes: a plurality of first portions at each of first to third regions, and a plurality of second portions between the plurality of first portions, at each of the first to third regions, wherein two or more second portions, at any one region, among the first to third regions, have a cross-sectional shape that differs from a cross-sectional shape of a second portion disposed at each of the other regions, among the first to third regions.
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公开(公告)号：US11533566B2
公开(公告)日：2022-12-20
申请号：US17180560
申请日：2021-02-19
Applicant: LG Display Co., Ltd.
Inventor： YongWoo Lee , Yong-Su Ham , Taeheon Kim , Sung-Eui Shin
IPC: H04R17/00 , H01L41/047 , H01L41/08 , H01L41/37 , H01L41/083 , H01L41/09
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：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：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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10.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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