公开(公告)号：US20230336922A1

公开(公告)日：2023-10-19

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

CPC classification number: H04R17/00 ,  H04R1/028 ,  H04R1/288 ,  H04R3/12 ,  G08B6/00 ,  H04R1/403 ,  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：US20220360907A1

公开(公告)日：2022-11-10

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

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：US20200213768A1

公开(公告)日：2020-07-02

申请号：US16722713

申请日：2019-12-20

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 ,  H04R1/40 ,  H04R3/12 ,  G08B6/00

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：US20200171542A1

公开(公告)日：2020-06-04

申请号：US16655928

申请日：2019-10-17

Applicant: LG Display Co., Ltd.

Inventor： YuSeon KHO ,  Chiwan KIM ,  Taeheon KIM ,  Sung-Eui SHIN ,  YongWoo LEE ,  Kyungyeol RYU ,  YongGyoon JANG

IPC: B06B1/06

Abstract: A vibration generating device includes a first piezoelectric device including at least one slit, a first electrode on a first surface of the first piezoelectric device, and a second electrode on a second surface opposite to the first surface of the first piezoelectric device.

公开(公告)号：US20190018509A1

公开(公告)日：2019-01-17

申请号：US16019935

申请日：2018-06-27

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyungyeol RYU ,  Chiwan KIM ,  Taeheon KIM ,  Sung-Eui SHIN ,  YongWoo LEE ,  YuSeon KHO

IPC: G06F3/041 ,  G06F3/01 ,  C08G79/025

Abstract: Provided are a touch sensitive device and a display device including the touch sensitive device. The touch sensitive device according to an embodiment of the present disclosure includes an electro-active layer formed of polyphosphazene substituted with an aryloxy group at a phosphorus atom in the backbone of the polyphosphazene, and electrodes disposed on at least one surface of the electro-active layer. The touch sensitive device according to an embodiment of the present disclosure has an excellent intensity of vibrations due to characteristics of the polyphosphazene including the substituted aryloxy group and is flame retardant and non-toxic.

公开(公告)号：US20230345156A1

公开(公告)日：2023-10-26

申请号：US18211583

申请日：2023-06-19

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 ,  H10N30/20 ,  H10N30/857 ,  H10N30/88 ,  H10N39/00

CPC classification number: H04R1/028 ,  H04R17/00 ,  H10N30/20 ,  H10N30/857 ,  H10N30/883 ,  H10N39/00 ,  H04R2499/15

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：US20230341977A1

公开(公告)日：2023-10-26

申请号：US18215791

申请日：2023-06-28

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: H10N30/30 ,  G06F3/044 ,  H10N30/85 ,  H10N30/853 ,  G06F3/041 ,  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：US20210176567A1

公开(公告)日：2021-06-10

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 ,  H01L41/08 ,  H01L41/09 ,  H01L41/083 ,  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：US20200252727A1

公开(公告)日：2020-08-06

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

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：US20200209997A1

公开(公告)日：2020-07-02

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

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.