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

IPC: H04R17/00 ,  G08B6/00 ,  H04R1/02 ,  H04R1/28 ,  H04R1/40 ,  H04R3/12

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.

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

IPC: H04R17/00 ,  H04R1/02 ,  B60Q9/00

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.

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.

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.

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：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：US12293022B2

公开(公告)日：2025-05-06

申请号：US18357939

申请日：2023-07-24

Applicant: LG Display Co., Ltd.

Inventor： Yong-Su Ham

IPC: G06F3/01 ,  G06F3/041 ,  H04R1/02 ,  H04R17/00

Abstract: A display apparatus includes a display panel configured to display an image and a vibration generating device configured to vibrate the display panel. The vibration generating device includes a plurality of first portions having a piezoelectric characteristic, and a plurality of second portions disposed between the plurality of first portions to have flexibility.

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.