公开(公告)号：US10542235B2

公开(公告)日：2020-01-21

申请号：US15971077

申请日：2018-05-04

Applicant: LG Display Co., Ltd.

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

IPC: H04R1/00 ,  H04R25/00 ,  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.

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：US10379617B2

公开(公告)日：2019-08-13

申请号：US15820215

申请日：2017-11-21

Applicant: LG Display Co., Ltd.

Inventor： YuSeon Kho ,  YongSu Ham ,  TaeHeon Kim ,  YongWoo Lee ,  KyungYeol Ryu

IPC: G06F3/01 ,  G06F3/041 ,  G06F3/044 ,  G02F1/1333

Abstract: Provided are a touch sensitive element and a display device. A touch sensitive element according to an exemplary embodiment includes an electroactive layer including a plurality of electroactive films formed of an electroactive polymer; and a plurality of electrodes disposed on at least one surface of the electroactive layer. In this case, the plurality of electroactive films is configured by a first electroactive film, a second electroactive film, and one or more electroactive films between the first electroactive film and the second electroactive film. A modulus of one or more electroactive films is higher or lower than both a modulus of an electroactive film which is in contact with an upper surface and a modulus of an electroactive film which is in contact with a lower surface. The touch sensitive element according to the exemplary embodiment of the present disclosure may implement a sufficient vibration strength in all frequency domains.

公开(公告)号：US10372218B2

公开(公告)日：2019-08-06

申请号：US15798164

申请日：2017-10-30

Applicant: LG Display Co., Ltd.

Inventor： YongWoo Lee ,  YongSu Ham ,  TaeHeon Kim ,  KyungYeol Ryu ,  YuSeon Kho ,  MyungJin Lim ,  SeulGi Choi

IPC: G06F3/01 ,  H01L41/09 ,  G02F1/1333 ,  G02F1/1343 ,  G06F3/041 ,  G06F3/044 ,  H01L41/047 ,  H01L41/08 ,  H01L41/193 ,  H01L27/32

Abstract: There is provided a touch sensitive element including an electroactive layer, and an electrode disposed on at least one surface of the electroactive layer. The electroactive layer has a first portion having a first thickness and a second portion which has a second thickness different from the first thickness and is in contact with the first portion at an outside of the first portion.

公开(公告)号：US10318091B2

公开(公告)日：2019-06-11

申请号：US14568029

申请日：2014-12-11

Applicant: LG Display Co., Ltd.

Inventor： YongWoo Lee ,  YongSu Ham

IPC: G06F3/047 ,  G06F3/01 ,  G06F3/041 ,  G06F3/044

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.

公开(公告)号：US20180157325A1

公开(公告)日：2018-06-07

申请号：US15820215

申请日：2017-11-21

Applicant: LG Display Co., Ltd.

Inventor： YuSeon Kho ,  YongSu Ham ,  TaeHeon Kim ,  YongWoo Lee ,  KyungYeol Ryu

IPC: G06F3/01 ,  G06F3/044 ,  G06F3/041 ,  G02F1/1333

CPC classification number: G06F3/016 ,  G02F1/13338 ,  G06F3/041 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04112

Abstract: Provided are a touch sensitive element and a display device. A touch sensitive element according to an exemplary embodiment includes an electroactive layer including a plurality of electroactive films formed of an electroactive polymer; and a plurality of electrodes disposed on at least one surface of the electroactive layer. In this case, the plurality of electroactive films is configured by a first electroactive film, a second electroactive film, and one or more electroactive films between the first electroactive film and the second electroactive film. A modulus of one or more electroactive films is higher or lower than both a modulus of an electroactive film which is in contact with an upper surface and a modulus of an electroactive film which is in contact with a lower surface. The touch sensitive element according to the exemplary embodiment of the present disclosure may implement a sufficient vibration strength in all frequency domains.

公开(公告)号：US12108210B2

公开(公告)日：2024-10-01

申请号：US18304790

申请日：2023-04-21

Applicant: LG Display Co., Ltd.

Inventor： Chiwan Kim ,  YongWoo Lee ,  SeongYong Uhm ,  Sungwook Ko ,  Uihyeon Jeong

IPC: H04R1/40 ,  H04R1/02 ,  H04R3/12 ,  H04R7/06 ,  H04R17/00 ,  G06F3/01

CPC classification number: H04R1/403 ,  H04R1/028 ,  H04R3/12 ,  H04R7/06 ,  H04R17/00 ,  G06F3/016 ,  H04R2201/401 ,  H04R2400/11 ,  H04R2499/15

Abstract: A vibration device enabling a large area and a display apparatus including the vibration device are provided. The vibration device may be configured to include a vibration array including a plurality of vibration modules which are spaced apart from one another by a first interval of less than 3 cm in a first direction.

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.