公开(公告)号：US10771902B1

公开(公告)日：2020-09-08

申请号：US16447353

申请日：2019-06-20

Applicant: LG Display Co., Ltd.

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

IPC: H04R17/00 ,  H04R7/02 ,  H01L41/047 ,  H01L41/08 ,  H01L41/09 ,  H01L41/37 ,  B06B1/06 ,  H01L41/083

Abstract: A display apparatus includes a display module having a display panel configured to display an image, a sound generation module disposed at the display module and configured to vibrate the display module to generate sound, a first cover configured to cover a first periphery portion of the display module, and a plurality of ultrasonic generation modules disposed between the first periphery portion of the display module and the first cover. The first cover includes a plurality of first holes overlapping with the plurality of ultrasonic generation modules.

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：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：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：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：US12047743B2

公开(公告)日：2024-07-23

申请号：US18234203

申请日：2023-08-15

Applicant: LG Display Co., Ltd.

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

IPC: H04R17/00 ,  G06F3/01 ,  H04R1/20 ,  H10N30/80

CPC classification number: H04R17/00 ,  G06F3/016 ,  H04R1/20 ,  H10N30/80

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：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.