公开(公告)号：US11726621B2

公开(公告)日：2023-08-15

申请号：US17942137

申请日：2022-09-10

Applicant: LG Display Co., Ltd.

Inventor： Chi-Wan Kim ,  Tae-Heon Kim ,  Sung-Eui Shin ,  Yong-Woo Lee ,  Kyung-Yeol Ryu ,  Yu-Seon Kho ,  Yong-Gyoon Jang

IPC: G06F3/045 ,  G06F3/044 ,  G06F3/041 ,  H10N30/30 ,  H10N30/85 ,  H10N30/853 ,  H10N30/00

CPC classification number: G06F3/044 ,  G06F3/0414 ,  H10N30/10516 ,  H10N30/302 ,  H10N30/852 ,  H10N30/853 ,  G06F2203/04105

Abstract: A display device includes a touch panel; a display panel under the touch panel and displaying an image; a piezoelectric element under the touch panel and including an upper electrode, a lower electrode and a piezoelectric layer; and a rectifying circuit connected to the piezoelectric element.

公开(公告)号：US11462675B2

公开(公告)日：2022-10-04

申请号：US16886150

申请日：2020-05-28

Applicant: LG Display Co., Ltd. ,  Korea University Research and Business Foundation

Inventor： Taeheon Kim ,  Sahn Nahm ,  YongGyoon Jang ,  Jonghyun Kim ,  Ku-Tak Lee ,  Chiwan Kim ,  Sung-Eui Shin ,  YongWoo Lee ,  Seok-June Chae

IPC: H01L41/187 ,  G06F3/041 ,  G10K9/122 ,  G06F1/16 ,  G06F3/01

Abstract: A piezoelectric element comprising a compound represented by Formula 1, a piezoelectric device including the piezoelectric element, a vibration module including the piezoelectric device, and a display apparatus including the piezoelectric device are provided, where (1-x)(LizNa0.5-zK0.5)(Nb1-ySby)O3.xCaZrO3  [Formula 1] where x, y, and z have a range of 0.001≤x≤0.2, a range of 0≤y≤0.5, and a range of 0≤z≤0.2, respectively.

公开(公告)号：US11275921B2

公开(公告)日：2022-03-15

申请号：US16940955

申请日：2020-07-28

Applicant: LG Display Co., Ltd.

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

IPC: G06K9/20 ,  G06K9/00 ,  H04R7/04 ,  H04R17/00

Abstract: A piezoelectric panel speaker and an electronic apparatus including the same are disclosed. The piezoelectric panel speaker may include a piezoelectric panel including at least one hole and configured to vibrate, and a fingerprint sensor accommodated into the one hole and configured to sense biometric information.

公开(公告)号：US11006223B2

公开(公告)日：2021-05-11

申请号：US16855842

申请日：2020-04-22

Applicant: LG DISPLAY CO., LTD.

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

IPC: H04R19/02 ,  H04R1/02 ,  H04R9/02 ,  H04R9/06

Abstract: A vibration generating device includes an electroactive layer having a first surface and a second surface opposite to the first surface, and including an unevenness structure; and a first electrode and a second electrode on at least one of the first surface and the second surface of the electroactive layer, wherein one or more of the first electrode and the second electrode covers an entire surface of at least one or more of the first surface and the second surface of the electroactive layer including the unevenness structure.

公开(公告)号：US10959025B2

公开(公告)日：2021-03-23

申请号：US16443090

申请日：2019-06-17

Applicant: LG Display Co., Ltd.

Inventor： YongWoo Lee ,  Yong-Su Ham ,  Taeheon Kim ,  Sung-Eui Shin

IPC: H04R17/00 ,  H01L41/08 ,  H01L41/083 ,  H01L41/09 ,  H01L41/047 ,  H01L41/37

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：US11930320B2

公开(公告)日：2024-03-12

申请号：US17978878

申请日：2022-11-01

Applicant: LG Display Co., Ltd.

Inventor： YongWoo Lee ,  Yong-Su Ham ,  Taeheon Kim ,  Sung-Eui Shin

IPC: H04R17/00 ,  H10N30/00 ,  H10N30/092 ,  H10N30/20 ,  H10N30/50 ,  H10N30/87

CPC classification number: H04R17/005 ,  H10N30/092 ,  H10N30/1061 ,  H10N30/206 ,  H10N30/50 ,  H10N30/87 ,  H04R2201/003 ,  H04R2499/15

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：US11722825B2

公开(公告)日：2023-08-08

申请号：US17871842

申请日：2022-07-22

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 ,  H04R1/02 ,  H04R1/28 ,  H04R3/12 ,  G08B6/00 ,  H04R1/40

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：US11460960B2

公开(公告)日：2022-10-04

申请号：US16710201

申请日：2019-12-11

Applicant: LG Display Co., Ltd.

Inventor： Chi-Wan Kim ,  Tae-Heon Kim ,  Sung-Eui Shin ,  Yong-Woo Lee ,  Kyung-Yeol Ryu ,  Yu-Seon Kho ,  Yong-Gyoon Jang

IPC: G06F3/045 ,  G06F3/044 ,  H01L41/08 ,  G06F3/041 ,  H01L41/187 ,  H01L41/113 ,  H01L41/18

Abstract: A display device includes a touch panel; a display panel under the touch panel and displaying an image; a piezoelectric element under the touch panel and including an upper electrode, a lower electrode and a piezoelectric layer; and a rectifying circuit connected to the piezoelectric element.

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：US10762320B2

公开(公告)日：2020-09-01

申请号：US16108849

申请日：2018-08-22

Applicant: LG Display Co., Ltd.

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

IPC: G06K9/20 ,  G06K9/00 ,  H04R7/04 ,  H04R17/00

Abstract: A piezoelectric panel speaker and an electronic apparatus including the same are disclosed. The piezoelectric panel speaker may include a piezoelectric panel including at least one hole and configured to vibrate, and a fingerprint sensor accommodated into the one hole and configured to sense biometric information.