公开(公告)号：US20190028669A1

公开(公告)日：2019-01-24

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: H04N5/64 ,  H01L51/52 ,  G02F1/1333 ,  H04R1/02 ,  H04R17/00

CPC classification number: H04N5/642 ,  G02F1/133308 ,  G02F2001/133314 ,  H01L51/524 ,  H04R1/025 ,  H04R17/00 ,  H04R2499/15

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：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：US11750979B2

公开(公告)日：2023-09-05

申请号：US17464660

申请日：2021-09-01

Applicant: LG Display Co., Ltd.

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

IPC: H04R17/00 ,  H04R1/02

CPC classification number: H04R17/005 ,  H04R1/028 ,  H04R2499/15

Abstract: A display apparatus includes a display panel including configured to display an image and a sound generating device on a rear surface of the display panel, the sound generating device being configured to vibrate the display panel to generate sound. The sound generating device includes a first structure and a second structure over or under the first structure, the second structure including a first part having a piezoelectric characteristic and a second part between adjacent first parts to have flexibility.

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：US11368771B2

公开(公告)日：2022-06-21

申请号：US17177058

申请日：2021-02-16

Applicant: LG Display Co., Ltd.

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

IPC: H04R1/02 ,  H04R17/00 ,  H01L41/09 ,  H01L27/20 ,  H01L41/053 ,  H01L41/193

Abstract: A display apparatus includes a display panel configured to display an image and a sound generating device on a rear surface of the display panel. The sound generating device is configured to vibrate the display panel to generate sound. The sound generating device includes a first structure and a first passivation layer on one side of the first structure, at least a portion of the first passivation layer having a non-flat shape.

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：US10459269B2

公开(公告)日：2019-10-29

申请号：US15928838

申请日：2018-03-22

Applicant: LG DISPLAY CO., LTD.

Inventor： Sung-Eui Shin ,  JeongJo Lee

IPC: G02F1/1345 ,  G02F1/1333 ,  G02F1/1335 ,  G09G3/34

Abstract: A display device includes a display panel including a first substrate and a second substrate, a panel driver electrically connected to the display panel, a support arranged at a back side of the display panel and including a support to support the display panel, a coupling member arranged on an upper surface of the support and configured to couple the display panel to the support, and a plurality of connection electrodes electrically connected to the display panel and the panel driver.

公开(公告)号：US09958718B2

公开(公告)日：2018-05-01

申请号：US15211778

申请日：2016-07-15

Applicant: LG Display Co., Ltd.

Inventor： Sung-Eui Shin ,  JeongJo Lee

IPC: G02F1/1333 ,  G02F1/1335 ,  G02F1/1345 ,  G09G3/34

CPC classification number: G02F1/133308 ,  G02F1/133615 ,  G02F1/13452 ,  G02F1/13458 ,  G02F2001/133314 ,  G09G3/3406 ,  G09G2300/026 ,  G09G2300/0426

Abstract: Disclosed is a display device including a display panel; a panel driver electrically connected to the display panel, a guide frame arranged at an edge area of the display panel and configured to support the display panel; and a coupling member arranged on an upper surface of the support and configured to couple the display panel to the guide frame.

公开(公告)号：US09618781B2

公开(公告)日：2017-04-11

申请号：US13941096

申请日：2013-07-12

Applicant: LG Display Co., Ltd.

Inventor： Chang Soo Jang ,  Sung-Eui Shin

IPC: G02F1/1333 ,  H05K5/02 ,  G02F1/1335 ,  G06F1/16

CPC classification number: G02F1/133308 ,  G02F1/133608 ,  G02F2001/133314 ,  G02F2001/133325 ,  G02F2201/503 ,  G02F2202/28 ,  G06F1/1601 ,  H05K5/02

Abstract: A display device includes a display panel including an upper substrate and a lower substrate facing and coupled to a rear surface of the upper substrate, a guide frame supporting the display panel, and a coupling member coupling the guide frame to the display panel. The coupling member includes an adhesive member providing adhesive strength and at least one or more buffer members which are disposed inside the adhesive member and have an elastic force. Accordingly, the display device can absorb an impact applied to the display panel, thus enhancing the stability of the display panel.