公开(公告)号：US20210304722A1

公开(公告)日：2021-09-30

申请号：US17218620

申请日：2021-03-31

Applicant: LG Display Co., Ltd.

Inventor： YuSeon KHO ,  Yong-Su HAM ,  YongWoo LEE

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

Abstract: A display apparatus includes a display panel displaying an image and a vibration generating device disposed on a rear surface of the display panel to vibrate the display panel. The vibration generating device includes a piezoelectric structure including a first region and a second region, the first region has a vibration characteristic of a first frequency, and the second region has a vibration characteristic of a second frequency which differs from the first frequency.

公开(公告)号：US20200314515A1

公开(公告)日：2020-10-01

申请号：US16450182

申请日：2019-06-24

Applicant: LG Display Co., Ltd.

Inventor： YongGyoon JANG ,  Yong-Su HAM ,  YongWoo LEE ,  Kyungyeol RYU

IPC: H04R1/02 ,  G06F3/01 ,  G08B6/00 ,  H01L51/52 ,  H01L25/16 ,  H01L41/08 ,  H01L41/09

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.

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：US20200059733A1

公开(公告)日：2020-02-20

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

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：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：US20180120942A1

公开(公告)日：2018-05-03

申请号：US15798164

申请日：2017-10-30

Applicant: LG Display Co., Ltd.

Inventor： YongWoo LEE ,  YongSu HAM ,  TaeHeon KIM ,  KyungYeol RYU ,  YuSeon KHO ,  MyungJin LIM ,  SeulGi CHOI

IPC: G06F3/01 ,  G06F3/041 ,  G06F3/044 ,  G02F1/1333 ,  G02F1/1343

CPC classification number: G06F3/016 ,  G02F1/133305 ,  G02F1/13338 ,  G02F1/134363 ,  G06F3/041 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04102 ,  G06F2203/04112 ,  H01L27/323 ,  H01L41/0477 ,  H01L41/08 ,  H01L41/098 ,  H01L41/193

Abstract: There is provided a touch sensitive element including an electroactive layer, and an electrode disposed on at least one surface of the electroactive layer. The electroactive layer has a first portion having a first thickness and a second portion which has a second thickness different from the first thickness and is in contact with the first portion at an outside of the first portion.

公开(公告)号：US20240224810A1

公开(公告)日：2024-07-04

申请号：US18381076

申请日：2023-10-17

Applicant: LG Display Co., Ltd.

Inventor： YongWoo LEE ,  JounHo LEE ,  Sooyoun KIM ,  HwaYoul LEE ,  Uihyeon JEONG

IPC: H10N30/87 ,  H10N30/20

CPC classification number: H10N30/877 ,  H10N30/20

Abstract: Discussed is a piezoelectric device that can include a piezoelectric device layer, a first electrode layer at a first surface of the piezoelectric device layer, and a second electrode layer at a second surface different from the first surface of the piezoelectric device layer. The piezoelectric device layer includes a first vibration portion and a second vibration portion overlapping each other in a thickness direction of the piezoelectric device layer and having different characteristics.

公开(公告)号：US20230422625A1

公开(公告)日：2023-12-28

申请号：US18242508

申请日：2023-09-05

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: H10N30/853 ,  G06F3/041 ,  G10K9/122 ,  G06F1/16 ,  G06F3/01

CPC classification number: H10N30/8542 ,  G06F3/0412 ,  G06F3/016 ,  G06F1/1605 ,  G10K9/122

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：US20230217833A1

公开(公告)日：2023-07-06

申请号：US17980553

申请日：2022-11-04

Applicant: LG Display Co., Ltd.

Inventor： Sooyoun KIM ,  Yong-Su HAM ,  YongWoo LEE ,  YuSeon KHO ,  Jaeyoung LIM

IPC: H01L41/053

CPC classification number: H01L41/053

Abstract: A vibration apparatus and an apparatus including the same are provided. The vibration apparatus includes a first vibration portion including a first material and a second vibration portion disposed adjacent to the first vibration portion, the second vibration portion including a second material. The apparatus including the vibration apparatus further includes a vibration object; a vibration generating apparatus at the vibration object; and a connection member between the vibration object and the vibration generating apparatus.