公开(公告)号：US20240098405A1

公开(公告)日：2024-03-21

申请号：US18515239

申请日：2023-11-20

Applicant: LG Display Co., Ltd.

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

IPC: H04R1/28 ,  H04R3/00 ,  H04R17/00

CPC classification number: H04R1/2811 ,  H04R3/00 ,  H04R17/005 ,  H04R1/323

Abstract: A vibration apparatus comprises a lower vibration structure, an upper vibration structure on the lower vibration structure, and an adhesive member between the lower vibration structure and the upper vibration structure. The lower vibration structure and the upper vibration structure are configured to generate sound waves having different frequencies.

公开(公告)号：US20230217190A1

公开(公告)日：2023-07-06

申请号：US17966539

申请日：2022-10-14

Applicant: LG Display Co., Ltd.

Inventor： Minji KIM ,  SeungRyull PARK ,  Chiwan KIM ,  Yong-Su HAM ,  Uihyeon JEONG

IPC: H04R17/00 ,  B06B1/06 ,  H01L41/083 ,  H01L41/09

CPC classification number: H04R17/005 ,  B06B1/0622 ,  H01L41/083 ,  H01L41/0926

Abstract: A vibration apparatus can include a first cover member; a second cover member; a vibration portion between the first cover member and the second cover member; a contact portion between the first cover member and the vibration portion; and a signal cable. The signal cable can include a first signal line connected to a first surface of the vibration portion via the contact portion, and a second signal line connected to a second surface of the vibration portion opposite to the first surface of the vibration portion.

公开(公告)号：US20230217187A1

公开(公告)日：2023-07-06

申请号：US18086585

申请日：2022-12-21

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

Inventor： YongWoo LEE ,  SeungRyull PARK ,  Yong-Su HAM ,  YuSeon KHO ,  Seunghyun SUNG ,  Sahn NAHM ,  Dae-Su KIM ,  Hosung SHIN ,  Jae Min EUM ,  Su-Hwan GO

IPC: H04R17/00 ,  C04B35/495 ,  C04B35/64 ,  C04B35/626 ,  H10N30/853 ,  H10N30/097 ,  H04R1/02

CPC classification number: H04R17/00 ,  C04B35/495 ,  C04B35/64 ,  C04B35/6261 ,  H01L41/1873 ,  H01L41/43 ,  H04R1/028 ,  C04B2235/3255 ,  C04B2235/3248 ,  C04B2235/6027 ,  C04B2235/6567 ,  C04B2235/85 ,  C04B2235/765 ,  H04R2499/15

Abstract: A piezoelectric material composition, a method of manufacturing the same, a piezoelectric device, and apparatus including the piezoelectric device. The piezoelectric device may include a piezoelectric device layer including a first material and a second material surrounded by the first material, a first electrode portion disposed at a first surface of the piezoelectric device layer, and a second electrode portion disposed at a second surface of the piezoelectric device layer opposite to the first surface, wherein the piezoelectric device layer comprises a piezoelectric material composition represented by Chemical Formula 1: 0.96(NaaK1-a)(Nbb(T1-b))O3-(0.04-x)MZrO3-x(BicAg1-c)ZrO3+d mol % NaNbO3, wherein T is Sb or Ta, M is Sr, Ba or Ca, a is 0.4≤a≤0.6, b is 0.90≤b≤0.98, c is 0.4≤c≤0.6, d is 0≤d≤5.0, and x is 0≤x≤0.04 and wherein T is Sb or Ta and M is Sr, Ba, or Ca.

公开(公告)号：US20200314556A1

公开(公告)日：2020-10-01

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 ,  H01L41/047 ,  H01L41/08 ,  H01L41/09 ,  H01L41/37 ,  H01L41/083

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：US20180164889A1

公开(公告)日：2018-06-14

申请号：US15822740

申请日：2017-11-27

Applicant: LG DISPLAY CO., LTD.

Inventor： Yong-Su HAM ,  Taeheon KIM ,  YongWoo LEE ,  Kyungyeol RYU ,  YuSeon KHO ,  MyungJin LIM

IPC: G06F3/01 ,  G06F3/0488 ,  H01L41/083 ,  H01L41/253 ,  H01L41/27

Abstract: Provided are a touch sensitive element and a manufacturing method thereof. The manufacturing method for the touch sensitive element according to an embodiment of the present disclosure includes forming an electroactive polymer coating layer by applying an electroactive polymer solution on a substrate; forming an electroactive layer by heating and pressurizing the electroactive polymer coating layer using a hot press roller; and forming an electrode on the electroactive layer.

公开(公告)号：US20170192595A1

公开(公告)日：2017-07-06

申请号：US15394395

申请日：2016-12-29

Applicant: LG DISPLAY CO., LTD.

Inventor： Seulgi CHOI ,  Yong-Su HAM ,  Taeheon KIM ,  YongWoo LEE ,  YuSeon KHO ,  MyungJin LIM

IPC: G06F3/041

CPC classification number: G06F3/0416 ,  C08J9/26 ,  C08J2201/0464 ,  C08J2353/00 ,  G06F3/016 ,  G06F3/041 ,  G06F2203/04103 ,  H01L41/0477 ,  H01L41/09 ,  H01L41/1132 ,  H01L41/193 ,  H01L41/253 ,  H01L41/45

Abstract: Provided are a contact sensitive device, a display apparatus including the same, and a method of manufacturing the same. The contact sensitive device includes an electroactive layer formed of an electroactive polymer having a plurality of nano pores and an electrode disposed on at least one surface of the electroactive layer. The electroactive layer has a β-phase structure and improved piezoelectricity without performing a stretching process or a polling process.

公开(公告)号：US20160185915A1

公开(公告)日：2016-06-30

申请号：US14983140

申请日：2015-12-29

Applicant: LG DISPLAY CO., LTD.

Inventor： Taeheon KIM ,  SuSeok CHOI ,  Yong-Su HAM ,  YongWoo LEE ,  MyungJin LIM ,  Seulgi CHOI

IPC: C08G77/24 ,  C09D183/08 ,  C08J5/18 ,  G06F3/041 ,  B32B27/28

CPC classification number: C08G77/24 ,  B32B7/12 ,  B32B27/06 ,  B32B27/08 ,  B32B27/283 ,  B32B2250/05 ,  B32B2255/10 ,  B32B2255/205 ,  B32B2307/20 ,  B32B2307/204 ,  B32B2307/40 ,  B32B2307/516 ,  B32B2307/518 ,  B32B2307/732 ,  B32B2457/20 ,  B32B2457/208 ,  B32B2590/00 ,  B32B2605/00 ,  C08G77/12 ,  C08G77/20 ,  C08G77/38 ,  C08J5/18 ,  C08J2383/08 ,  C08K5/56 ,  C08L83/00 ,  C08L83/08 ,  C09D183/08 ,  G06F3/016 ,  G06F3/041 ,  G06F2203/04102 ,  G06F2203/04103

Abstract: Provided is a touch sensitive device including an electroactive film, a display device including the same, and a method of manufacturing the electroactive film. The touch sensitive device of the present disclosure includes an electroactive film including a siloxane polymer having a fluoro group or a chloro group bonded to a part of the backbone, and the electroactive film has a dielectric constant that is improved by 15% or more by elongation at an elongation rate of 100% or more.

Abstract translation: 提供了一种包括电活性膜的触敏装置，包括其的显示装置和制造电活性膜的方法。 本公开的触敏装置包括电活性膜，其包含具有与基团的一部分键合的氟基或氯基的硅氧烷聚合物，并且电活性膜的介电常数通过伸长率提高15％以上 伸长率为100％以上。

公开(公告)号：US20240260309A1

公开(公告)日：2024-08-01

申请号：US18633501

申请日：2024-04-11

Applicant: LG Display Co., Ltd.

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

IPC: H10K59/00 ,  G06F3/01 ,  H10K50/842 ,  H10N30/20

CPC classification number: H10K59/00 ,  G06F3/016 ,  H10K50/8426 ,  H10N30/204

Abstract: A display apparatus includes a display panel configured to display an image and a film actuator configured to vibrate the display panel. The film actuator may include a plurality of vibration generating devices configured with a composite film. The plurality of vibration generating devices may be configured to have different expansion coefficients from each other.

公开(公告)号：US20240223963A1

公开(公告)日：2024-07-04

申请号：US18388065

申请日：2023-11-08

Applicant: LG Display Co., Ltd.

Inventor： Yong-Su HAM ,  Minji KIM ,  SangWoo JIN

IPC: H04R17/10

CPC classification number: H04R17/10 ,  H04R2217/01

Abstract: An apparatus is provided for outputting sound. The apparatus includes a vibration member including an internal space and a vibration device configured to vibrate the vibration member. The apparatus may enhance a sound characteristic of a low-pitched sound band as well as a high-pitched sound band. Further, the apparatus may provide a wide pitched sound band and improve a flatness of a sound pressure level.

公开(公告)号：US20240165665A1

公开(公告)日：2024-05-23

申请号：US18384903

申请日：2023-10-30

Applicant: LG DISPLAY CO., LTD.

Inventor： SangWoo JIN ,  Yong-Su HAM ,  Minji KIM ,  Eun ROH

IPC: B06B1/06 ,  B06B1/02

CPC classification number: B06B1/0618 ,  B06B1/0207

Abstract: A vibration apparatus includes a vibration layer including a piezoelectric material, a first electrode layer at a first surface of the vibration layer, a second electrode layer at a second surface of the vibration layer different from the first surface, and a discharge member electrically connected to the first electrode layer and the second electrode layer.