公开(公告)号：US12101600B2

公开(公告)日：2024-09-24

申请号：US17845444

申请日：2022-06-21

Applicant: LG Display Co., Ltd.

Inventor： Sungwook Ko ,  Kyungyeol Ryu ,  Taehyung Kim ,  MinHo Sohn ,  SeulKi Nam ,  Jeonggoo Kang ,  JunSeok Oh ,  SeungRyull Park ,  Chiwan Kim ,  GyungBo Ha ,  Uihyeon Jeong

IPC: H04R17/00 ,  H04R1/28 ,  H10N30/00 ,  H10N30/20

CPC classification number: H04R17/00 ,  H04R1/2803 ,  H10N30/20 ,  H10N30/708 ,  H04R2430/00 ,  H04R2499/13

Abstract: A vibration apparatus may include a vibration device and an adhesive member at a surface of the vibration device. A modulus of the vibration device may be equal to a modulus of the adhesive member or may be greater than the modulus of the adhesive member.

公开(公告)号：US12069428B2

公开(公告)日：2024-08-20

申请号：US17851822

申请日：2022-06-28

Applicant: LG Display Co., Ltd.

Inventor： Minji Kim ,  YoungWook Ha ,  Chiwan Kim ,  GyungBo Ha ,  MinHo Sohn ,  MinKyu Choi ,  Jeonggoo Kang ,  YuSeon Kho ,  YeongRak Choi ,  Seungo Jeon ,  Kwangho Kim ,  JunSeok Oh

IPC: H04R17/00 ,  H04R1/24 ,  H04R3/00 ,  H04R31/00 ,  H04R1/02

CPC classification number: H04R17/00 ,  H04R1/24 ,  H04R3/00 ,  H04R31/006 ,  H04R1/028 ,  H04R2499/15

Abstract: A vibration apparatus may include a vibration plate, a vibration generator at the vibration plate, and a connection member between the vibration plate and the vibration generator. The vibration generator may include a vibration structure. The connection member may include a first connection member between the vibration plate and the vibration structure and overlapping the vibration structure. The connection member may also include a second connection member surrounding the first connection member. A modulus of the first connection member may be greater than a modulus of the second connection member.

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：US11671750B2

公开(公告)日：2023-06-06

申请号：US17218605

申请日：2021-03-31

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：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：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.