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.

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.

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

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

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.

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

IPC: G06F3/01 ,  B29C65/48 ,  B32B7/12 ,  G06F3/041 ,  B32B37/12 ,  B29L31/34 ,  B32B38/00

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.

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.

公开(公告)号：US20150169118A1

公开(公告)日：2015-06-18

申请号：US14568029

申请日：2014-12-11

Applicant: LG Display Co., Ltd.

Inventor： YongWoo Lee ,  YongSu Ham

IPC: G06F3/047 ,  G06F3/044 ,  G06F3/01

CPC classification number: G06F3/047 ,  G06F3/016 ,  G06F3/041 ,  G06F3/044 ,  G06F2203/04105

Abstract: A monolithic haptic-type touch screen capable of performing both touch recognition and haptic feedback are provided. The monolithic haptic-type touch screen includes an insulating film formed by doping ferroelectric material in an electroactive polymer (EAP), an upper electrode formed on an upper surface of the insulating film, and a lower electrode formed on a lower surface of the insulating film and corresponding to the upper electrode.

Abstract translation: 提供能够执行触摸识别和触觉反馈的单片触觉式触摸屏。 整体触觉型触摸屏包括通过在电活性聚合物（EAP）中掺杂铁电材料形成的绝缘膜，形成在绝缘膜的上表面上的上电极和形成在绝缘膜的下表面上的下电极 并对应于上电极。

公开(公告)号：US11910143B2

公开(公告)日：2024-02-20

申请号：US18105198

申请日：2023-02-02

Applicant: LG Display Co., Ltd.

Inventor： YongGyoon Jang ,  Yong-Su Ham ,  YongWoo Lee ,  Kyungyeol Ryu

IPC: H10N30/20 ,  H10N30/00 ,  H10K50/842 ,  G06F3/01 ,  G08B6/00 ,  H01L25/16 ,  H04R1/02

CPC classification number: H04R1/028 ,  G06F3/016 ,  G08B6/00 ,  H01L25/167 ,  H10K50/8426 ,  H10N30/1051 ,  H10N30/20 ,  H04R2400/03 ,  H04R2499/15

Abstract: Display panel and display apparatus including the same. A display panel includes a first substrate including a display portion configured to display an image, a second substrate attached to the first substrate by an adhesive member, and a vibration generating module within the adhesive member to overlap the display portion. The vibration generating module is surrounded by the second substrate and the adhesive member.

公开(公告)号：US11882398B2

公开(公告)日：2024-01-23

申请号：US17531003

申请日：2021-11-19

Applicant: LG Display Co., Ltd.

Inventor： Yong-Su Ham ,  YongWoo Lee ,  YuSeon Kho

IPC: H04R3/00 ,  H04R1/28 ,  H04R17/00 ,  H04R1/32

CPC classification number: H04R1/2811 ,  H04R3/00 ,  H04R17/005 ,  H04R1/323 ,  H04R2499/13 ,  H04R2499/15

Abstract: A vibration apparatus comprises a lower vibration structure, an upper vibration structure on the lower vibration structure, and an adhesive member between the lower vibration structure and the upper vibration structure. The lower vibration structure and the upper vibration structure are configured to generate sound waves having different frequencies.

公开(公告)号：US11812666B2

公开(公告)日：2023-11-07

申请号：US17893881

申请日：2022-08-23

Applicant: LG Display Co., Ltd. ,  Korea University Research and Business Foundation

Inventor： Taeheon Kim ,  Sahn Nahm ,  YongGyoon Jang ,  Jonghyun Kim ,  Ku-Tak Lee ,  Chiwan Kim ,  Sung-Eui Shin ,  YongWoo Lee ,  Seok-June Chae

IPC: H10N30/853 ,  G06F3/041 ,  G10K9/122 ,  G06F1/16 ,  G06F3/01

CPC classification number: H10N30/8542 ,  G06F1/1605 ,  G06F3/016 ,  G06F3/0412 ,  G10K9/122

Abstract: A piezoelectric element comprising a compound represented by Formula 1, a piezoelectric device including the piezoelectric element, a vibration module including the piezoelectric device, and a display apparatus including the piezoelectric device are provided, where

(1−x)(LizNa0.5-zK0.5)(Nb1-ySby)O3·xCaZrO3  [Formula 1]

where x, y, and z have a range of 0.001≤x≤0.2, a range of 0≤y≤0.5, and a range of 0≤z≤0.2, respectively.

公开(公告)号：US11785394B2

公开(公告)日：2023-10-10

申请号：US17676816

申请日：2022-02-22

Applicant: LG Display Co., Ltd.

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

IPC: H04R17/00 ,  H04R1/02 ,  H04R7/04 ,  G06F1/16

CPC classification number: H04R17/00 ,  H04R1/028 ,  H04R7/045 ,  G06F1/1652 ,  H04R2499/15

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.