公开(公告)号：US11297439B2

公开(公告)日：2022-04-05

申请号：US17013035

申请日：2020-09-04

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

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.

公开(公告)号：US11166108B2

公开(公告)日：2021-11-02

申请号：US16447304

申请日：2019-06-20

Applicant: LG Display Co., Ltd.

Inventor： Chiwan Kim ,  Kyungyeol Ryu ,  YuSeon Kho ,  YongGyoon Jang

IPC: H04R1/02 ,  H04R17/00 ,  G06F3/01 ,  H01L41/04 ,  H04R1/20

Abstract: A display apparatus includes: a display panel configured to display an image, and at least one vibration module on a rear surface of the display panel, the at least one vibration module including a piezoelectric composite layer including a plurality of sub-modules configured to vibrate the display panel, each of the plurality of sub-modules including: a plurality of first portions including a piezoelectric characteristic, and a plurality of second portions having flexibility, each of the plurality of second portions being between a respective pair of the plurality first portions, wherein the plurality of first portions in the respective sub-modules are arranged in a same direction or are partially arranged in different directions.

公开(公告)号：US11073914B2

公开(公告)日：2021-07-27

申请号：US16720587

申请日：2019-12-19

Applicant: LG Display Co., Ltd.

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

IPC: G06F3/01 ,  H01L27/32 ,  G02F1/1368 ,  G02F1/1333 ,  G06F3/041 ,  B60K37/04 ,  B06B1/06 ,  G06F3/044 ,  B60R11/02 ,  B60R11/00

Abstract: The present disclosure relates to a vibration generation device, a display apparatus including the vibration generation device, and a vehicle including the vibration generation device. A vibration generation device includes a piezoelectric ceramic part having a certain interval, a piezoelectric material layer between the piezoelectric ceramic parts, and an electrode part configured to provide electric field to one or more of the piezoelectric ceramic part and the piezoelectric material layer.

公开(公告)号：US20210136314A1

公开(公告)日：2021-05-06

申请号：US17145623

申请日：2021-01-11

Applicant: LG Display Co., Ltd.

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

IPC: 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：US10805736B2

公开(公告)日：2020-10-13

申请号：US16443454

申请日：2019-06-17

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

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.

公开(公告)号：US10752737B2

公开(公告)日：2020-08-25

申请号：US16798000

申请日：2020-02-21

Applicant: LG Display Co., Ltd.

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

IPC: C08G79/08 ,  C07F7/00 ,  C08G79/00 ,  C09D185/04 ,  G06F3/041 ,  G06F3/044 ,  C07F15/00

Abstract: Provided are 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 layer formed of a linear boron nitride polymer and an electrode disposed on at least one surface of the electroactive layer. Therefore, a piezoelectricity of the electroactive layer is improved to improve vibration strength of the touch sensitive element and significantly improve heat resistance.

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.