公开(公告)号：US20230007404A1

公开(公告)日：2023-01-05

申请号：US17845444

申请日：2022-06-21

Applicant: LG Display Co., Ltd.

Inventor： Sungwook KO ,  Kyungyeol RYU ,  Taehyung KIM ,  MinHo SOHN ,  SeulKi NAM ,  Jeonggoo KANG ,  JunSeok OH ,  SeungRyull PARK ,  Chiwan KIM ,  GyungBo HA ,  Uihyeon JEONG

IPC: H04R17/00 ,  H01L41/09 ,  H01L41/08 ,  H04R1/28

Abstract: A vibration apparatus may include a vibration device and an adhesive member at a surface of the vibration device. A modulus of the vibration device may be equal to a modulus of the adhesive member or may be greater than the modulus of the adhesive member.

公开(公告)号：US20230007387A1

公开(公告)日：2023-01-05

申请号：US17851644

申请日：2022-06-28

Applicant: LG Display Co., Ltd.

Inventor： Daeho KIM ,  YuSeon KHO ,  Kyungyeol RYU ,  YeongRak CHOI ,  KwanHo PARK ,  MinKyu CHOI ,  Jeongbeom LEE ,  Inchan JEONG ,  MinHo SOHN ,  Seungo JEON ,  Kwangho KIM ,  SeungRyull PARK ,  JunSeok OH ,  Chiwan KIM

IPC: H04R1/26 ,  H04R1/02 ,  H04R17/00 ,  H04R1/32 ,  H04R3/12

Abstract: A sound apparatus may include a vibration member, a housing configured to cover a rear surface of the vibration member, and a vibration apparatus including one or more vibration devices configured to vibrate the vibration member. The vibration member may include a non-planar structure.

公开(公告)号：US20170343864A1

公开(公告)日：2017-11-30

申请号：US15681213

申请日：2017-08-18

Applicant: LG Display Co., Ltd.

Inventor： SeungRyull PARK ,  HyunJin PARK ,  JinPil KIM ,  Han Jin AHN ,  Hanseok LEE ,  Su-Bin LEE

IPC: G02F1/1337 ,  G02F1/1343 ,  G02F1/137

CPC classification number: G02F1/133788 ,  G02F1/133723 ,  G02F1/134363 ,  G02F2001/134372 ,  G02F2001/13712 ,  Y10T428/1018 ,  Y10T428/1023

Abstract: An alignment film for liquid crystal display device includes a first portion positioned towards to the liquid crystal layer and a second portion positioned away from the liquid crystal layer. The first portion provides improved anchoring force while the second portion exhibits a lower volume resistance than the first portion. Thus, AC image sticking and DC image sticking can be minimized at the same time.

公开(公告)号：US20240196135A1

公开(公告)日：2024-06-13

申请号：US18411775

申请日：2024-01-12

Applicant: LG Display Co., Ltd.

Inventor： YoungWook HA ,  SeungRyull PARK ,  Chiwan KIM ,  Sungwook KO

IPC: H04R17/00 ,  H10N30/85 ,  H10N30/87 ,  H10N30/88

CPC classification number: H04R17/00 ,  H10N30/852 ,  H10N30/877 ,  H10N30/883 ,  H04R2499/13 ,  H04R2499/15

Abstract: A vibration device can include a vibration portion, a first electrode portion disposed on a first surface of the vibration portion, and a second electrode portion disposed on a second surface of the vibration portion. Also, each of the first electrode portion and the second electrode portion includes a conductive metal particle and a piezoelectric nanoparticle.

公开(公告)号：US20230217161A1

公开(公告)日：2023-07-06

申请号：US17977378

申请日：2022-10-31

Applicant: LG Display Co., Ltd.

Inventor： YoungWook HA ,  Chiwan KIM ,  SeungRyull PARK ,  SangWoo JIN

IPC: H04R1/40 ,  H04R1/02 ,  H04R17/00 ,  H04R3/12 ,  H04R1/28

CPC classification number: H04R1/403 ,  H04R1/028 ,  H04R17/00 ,  H04R3/12 ,  H04R1/2896 ,  H04R2499/15 ,  H04R2400/11 ,  H04R2400/03

Abstract: An apparatus can include a display member configured to display an image, a vibration apparatus disposed at a rear surface of the display member, a supporting frame disposed at a rear surface of the vibration apparatus, and an adhesive member disposed between the supporting frame and the rear surface of the display member. In addition, the adhesive member and/or supporting frame is spaced apart from the vibration apparatus, and the vibration apparatus is configured to vibrate in a direction toward the display member.

公开(公告)号：US20220210577A1

公开(公告)日：2022-06-30

申请号：US17555091

申请日：2021-12-17

Applicant: LG Display Co., Ltd.

Inventor： YoungWook HA ,  SeungRyull PARK ,  Chiwan KIM ,  Sungwook KO

IPC: H04R17/00 ,  H01L41/047 ,  H01L41/053 ,  H01L41/18

Abstract: A vibration device can include a vibration portion; a first electrode portion disposed on a first surface of the vibration portion; and a second electrode portion disposed on a second surface of the vibration portion, in which each of the first and second electrode portions include at least one of a conductive metal particle and a carbon particle.

公开(公告)号：US20220201401A1

公开(公告)日：2022-06-23

申请号：US17554712

申请日：2021-12-17

Applicant: LG Display Co., Ltd.

Inventor： Sungwook KO ,  Minji KIM ,  SeungRyull PARK

IPC: H04R17/00 ,  H01L41/18

Abstract: A disclosed vibration device comprises a first vibration generator and a first connection member disposed on a first surface of the first vibration generator. The first vibration generator may comprise a first vibration part including a plurality of inorganic material portions having a piezoelectric characteristic and an organic material portion between the plurality of inorganic material portions.

公开(公告)号：US20130112979A1

公开(公告)日：2013-05-09

申请号：US13668071

申请日：2012-11-02

Applicant: LG DISPLAY CO., LTD.

Inventor： KyoungJin NAM ,  SeungRyull PARK ,  KyungMo SON ,  JiHye LEE

IPC: H01L27/15 ,  H01L33/56

CPC classification number: G02F1/134363 ,  G02F1/136227 ,  G02F2001/133357 ,  G02F2001/134372 ,  G02F2201/50 ,  G02F2202/022 ,  H01L27/124 ,  H01L27/1248 ,  H01L27/1259

Abstract: A fringe field switching (FFS) liquid crystal display (LCD) device which uses an organic insulating layer and consumes less power, in which film quality of an upper layer of a low temperature protective film is changed to improve undercut within a pad portion contact hole, and a method for fabricating the same is provided.

Abstract translation: 使用有机绝缘层并消耗较少功率的边缘场切换（FFS）液晶显示（LCD）装置，其中改变低温保护膜的上层的膜质量以改善焊盘部分接触孔内的底切 ，并提供其制造方法。

公开(公告)号：US20250081854A1

公开(公告)日：2025-03-06

申请号：US18807701

申请日：2024-08-16

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

Inventor： Sungwook KO ,  SeungRyull PARK ,  Sahn NAHM ,  Jungsoo KIM ,  Geun-Soo LEE ,  Eunji KIM

IPC: H10N30/853 ,  C04B35/468 ,  C04B35/64 ,  H10N30/092 ,  H10N30/097

Abstract: A piezoelectric material composition may be represented by Equation 1. A piezoelectric device may include a piezoelectric device layer including the piezoelectric material composition represented by Equation 1, a first electrode disposed at a first surface of the piezoelectric device layer, and a second electrode disposed at a second surface different from the first surface of the piezoelectric device layer. a ⁢ PbZrO 3 - b ⁢ PbTiO 3 - ( 1 - a - b ) ⁢ Pb ( Ni c ⁢ Nb 1 - c ) ⁢ O 3 + x ⁢ mol ⁢ % ⁢ A + y ⁢ vol ⁢ % ⁢ BaTiO 3 [ Equation ⁢ 1 ] where A is Fe2O3, Co2O3, Mn2O3, ZnO, GeO2, CuO, or NiO, and 0.15≤a≤0.24, 0.29≤b≤0.38, 0.30≤c≤0.35, 0.00≤x≤3.00, and 0.00≤y≤7.00.

公开(公告)号：US20240236584A1

公开(公告)日：2024-07-11

申请号：US18519470

申请日：2023-11-27

Applicant: LG Display Co., Ltd.

Inventor： YoungWook HA ,  Chiwan KIM ,  Wansoo LEE ,  SeungRyull PARK

IPC: H04R17/00

CPC classification number: H04R17/00

Abstract: A vibration apparatus may include a vibration part, a first electrode part at a first surface of the vibration part, and a second electrode part at a second surface different from the first surface of the vibration part. At least one of the first electrode part and the second electrode part may include metal and an anti-oxidation layer.