公开(公告)号：US10972820B2

公开(公告)日：2021-04-06

申请号：US16662690

申请日：2019-10-24

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：US11804203B2

公开(公告)日：2023-10-31

申请号：US17322248

申请日：2021-05-17

Applicant: LG DISPLAY CO., LTD.

Inventor： Uihyeon Jeong ,  Chiwan Kim ,  Yongwoo Lee ,  Sungwook Ko

IPC: G10K9/122 ,  G06F1/16 ,  G06F3/16

CPC classification number: G10K9/122 ,  G06F1/1605 ,  G06F3/16

Abstract: A display apparatus includes a display panel configured to display an image, a vibration generating device at a rear surface of the display panel to vibrate the display panel, and a supporting member at the rear surface of the display panel and including a first hole. The first hole may be disposed at a whole region or periphery of the vibration generating device.

公开(公告)号：US10193099B2

公开(公告)日：2019-01-29

申请号：US15722914

申请日：2017-10-02

Applicant: LG Display Co., Ltd.

Inventor： Seulgi Choi ,  Suseok Choi ,  Yongsu Ham ,  Taeheon Kim ,  Yongwoo Lee ,  Myungjin Lim

IPC: G06F1/16 ,  H05K5/00 ,  H05K7/00 ,  H01L51/52 ,  G06F3/041 ,  H01L51/56 ,  H01L27/32 ,  H01L41/047 ,  H01L41/29 ,  H01L41/09 ,  H01L41/193

Abstract: A transformable device is provided. The transformable device includes an electro-active layer. A first electrode is disposed at a lower portion inside the electro-active layer. A second electrode is disposed at an upper portion inside the electro-active layer. In the transformable device according to an embodiment of the present disclosure, performance of the electrodes is suppressed from decreasing in spite of repeated operating and a life of the transformable device can be increased as compared with a case of forming electrodes outside an electro-active layer.

公开(公告)号：US12039101B2

公开(公告)日：2024-07-16

申请号：US17359243

申请日：2021-06-25

Applicant: LG Display Co., Ltd.

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

IPC: H04R17/00 ,  B06B1/06 ,  B60K35/50 ,  B60Q5/00 ,  G02F1/1333 ,  G02F1/1368 ,  G06F3/01 ,  G06F3/041 ,  H10K59/12 ,  H10K59/40 ,  B60K35/10 ,  B60K35/22 ,  B60K35/25 ,  B60K35/60 ,  B60R11/00 ,  B60R11/02 ,  G06F3/044 ,  H04R7/04

CPC classification number: G06F3/016 ,  B06B1/0688 ,  B60K35/50 ,  B60Q5/00 ,  G02F1/13338 ,  G02F1/1368 ,  G06F3/0416 ,  H04R17/00 ,  H10K59/12 ,  H10K59/40 ,  B60K35/10 ,  B60K35/22 ,  B60K35/25 ,  B60K35/60 ,  B60K2360/1438 ,  B60K2360/77 ,  B60R2011/0005 ,  B60R2011/0021 ,  B60R11/0217 ,  G06F3/0443 ,  H04R7/045 ,  H04R2499/13 ,  H04R2499/15

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：US09812664B2

公开(公告)日：2017-11-07

申请号：US14962569

申请日：2015-12-08

Applicant: LG DISPLAY CO., LTD.

Inventor： Seulgi Choi ,  Suseok Choi ,  Yongsu Ham ,  Taeheon Kim ,  Yongwoo Lee ,  Myungjin Lim

IPC: G06F1/16 ,  H01L51/52 ,  G06F3/041 ,  H01L51/56 ,  H01L27/32 ,  H01L41/047 ,  H01L41/29 ,  H01L41/09 ,  H01L41/193

CPC classification number: H01L51/5225 ,  G06F1/1652 ,  G06F3/0412 ,  G06F2203/04102 ,  G06F2203/04103 ,  G09G2380/02 ,  H01L27/323 ,  H01L41/047 ,  H01L41/0926 ,  H01L41/193 ,  H01L41/29 ,  H01L51/5209 ,  H01L51/56 ,  H01L2251/5338

Abstract: A transformable device is provided. The transformable device includes an electro-active layer. A first electrode is disposed at a lower portion inside the electro-active layer. A second electrode is disposed at an upper portion inside the electro-active layer. In the transformable device according to an embodiment of the present disclosure, performance of the electrodes is suppressed from decreasing in spite of repeated operating and a life of the transformable device can be increased as compared with a case of forming electrodes outside an electro-active layer.