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.

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.

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.

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.

公开(公告)号：US11930320B2

公开(公告)日：2024-03-12

申请号：US17978878

申请日：2022-11-01

Applicant: LG Display Co., Ltd.

Inventor： YongWoo Lee ,  Yong-Su Ham ,  Taeheon Kim ,  Sung-Eui Shin

IPC: H04R17/00 ,  H10N30/00 ,  H10N30/092 ,  H10N30/20 ,  H10N30/50 ,  H10N30/87

CPC classification number: H04R17/005 ,  H10N30/092 ,  H10N30/1061 ,  H10N30/206 ,  H10N30/50 ,  H10N30/87 ,  H04R2201/003 ,  H04R2499/15

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：US11722825B2

公开(公告)日：2023-08-08

申请号：US17871842

申请日：2022-07-22

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 ,  H04R1/02 ,  H04R1/28 ,  H04R3/12 ,  G08B6/00 ,  H04R1/40

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：US11601738B2

公开(公告)日：2023-03-07

申请号：US17370954

申请日：2021-07-08

Applicant: LG Display Co., Ltd.

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

IPC: H04R1/02 ,  G06F3/01 ,  G08B6/00 ,  H01L51/52 ,  H01L41/08 ,  H01L41/09 ,  H01L25/16

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：US09939974B2

公开(公告)日：2018-04-10

申请号：US14979952

申请日：2015-12-28

Applicant: LG Display Co., Ltd

Inventor： Yong-Su Ham ,  SuSeok Choi ,  Taeheon Kim ,  YongWoo Lee ,  MyungJin Lim ,  Seulgi Choi

IPC: G06F3/044 ,  H01L41/113 ,  H01L41/193 ,  H01L27/32 ,  H01L51/52 ,  H01L41/47 ,  G02B5/30 ,  G06F3/01

CPC classification number: G06F3/044 ,  G02B5/3083 ,  G02F1/0131 ,  G06F3/016 ,  G06F2203/04107 ,  H01L27/323 ,  H01L41/1132 ,  H01L41/193 ,  H01L41/47 ,  H01L51/5281

Abstract: Provided is a display device. The display device includes a display panel, a contact sensitive device on the display panel, and a linear polarizer on the contact sensitive device. The contact sensitive device includes an electro-active layer which is uniaxially elongated and configured to retard a phase of incident light. Since the display device includes the contact sensitive device having the electro-active layer configured to retard the phase of the incident light, a separate phase retardation film for suppressing external light reflection may be omitted. As a result, the thickness of the display device may be decreased and manufacturing cost of the display device may be reduced.

公开(公告)号：US09836125B2

公开(公告)日：2017-12-05

申请号：US14971170

申请日：2015-12-16

Applicant: LG DISPLAY CO., LTD.

Inventor： MyungJin Lim ,  SuSeok Choi ,  Yong-Su Ham ,  Taeheon Kim ,  YongWoo Lee ,  Seulgi Choi

IPC: G06F3/041 ,  G06F3/01 ,  H01L41/083 ,  H01L41/193 ,  H01L41/09

CPC classification number: G06F3/016 ,  G06F3/0412 ,  G06F2203/04102 ,  H01L41/083 ,  H01L41/0926 ,  H01L41/193

Abstract: Provided is a multilayer transformable device with enhanced driving displacement and a display device including the same. The multilayer transformable device, for example, includes a plurality of unit transformable devices, each of the unit transformable devices that includes a lower electrode, an upper electrode, and a transformable layer including an electro-active polymer (EAP) and a sub-transformable layer disposed between the plurality of unit transformable devices, the sub-transformable layer including a sub-EAP different from the EAP.

公开(公告)号：US20170192507A1

公开(公告)日：2017-07-06

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

CPC classification number: G06F3/016 ,  B29C65/4845 ,  B29L2031/3475 ,  B32B7/12 ,  B32B37/12 ,  B32B2038/0076 ,  B32B2307/20 ,  B32B2310/0831 ,  B32B2457/208 ,  G06F3/041 ,  G06F3/0412 ,  G06F2203/04103 ,  G06F2203/04112

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.