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：US20230393804A1

公开(公告)日：2023-12-07

申请号：US18235343

申请日：2023-08-17

Applicant: LG Display Co., Ltd.

Inventor： Sungsu HAM ,  Sungtae LEE ,  Joongsup HAN ,  Uihyeon JEONG

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

CPC classification number: G06F3/16 ,  G06F1/1605 ,  G10K9/122

Abstract: A display apparatus includes a display panel configured to display an image, and a vibration device on a rear surface of the display panel to vibrate the display panel to generate a sound, the vibration device including a vibration array including a plurality of vibration modules.

公开(公告)号：US20210304920A1

公开(公告)日：2021-09-30

申请号：US17217440

申请日：2021-03-30

Applicant: LG Display Co., Ltd.

Inventor： Sungwook KO ,  Chiwan KIM ,  YongWoo LEE ,  Uihyeon JEONG

IPC: H01B7/04 ,  H01L41/083 ,  H01L41/09 ,  H01L41/047

Abstract: A flexible cable may include a base member including a terminal portion, a conductor layer including a plurality of conductive lines disposed on the base member, and a protection layer disposed on the base member to cover at least prat of the conductor layer and to expose a portion of each of the plurality of conductive lines at the terminal portion. A length of each of the plurality of conductive lines may be longer than a length of the base member. A vibration device may include a vibration structure including a vibration layer, a first electrode layer disposed on a first surface of the vibration layer, and a second electrode layer disposed on a second surface of the vibration layer and a flexible cable electrically connected to the first electrode layer and to the second electrode layer of the vibration structure.

公开(公告)号：US20210279026A1

公开(公告)日：2021-09-09

申请号：US17190788

申请日：2021-03-03

Applicant: LG Display Co., Ltd.

Inventor： Sungsu HAM ,  Sungtae LEE ,  Joongsup HAN ,  Uihyeon JEONG

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

Abstract: A display apparatus includes a display panel configured to display an image, and a vibration device on a rear surface of the display panel to vibrate the display panel to generate a sound, the vibration device including a vibration array including a plurality of vibration modules.

公开(公告)号：US20240217882A1

公开(公告)日：2024-07-04

申请号：US18216756

申请日：2023-06-30

Applicant: LG Display Co., Ltd. ,  KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

Inventor： Daesu KIM ,  YongWoo LEE ,  JounHo LEE ,  Sooyoun KIM ,  HwaYoul LEE ,  Uihyeon JEONG ,  Sahn NAHM ,  Su-Hwan GO ,  Yeongyeong CHAE ,  Seok-June CHAE ,  Hero KIM

IPC: C04B35/495 ,  C04B35/493 ,  C04B35/626 ,  C04B35/64 ,  H10N30/097 ,  H10N30/853

CPC classification number: C04B35/495 ,  C04B35/493 ,  C04B35/6262 ,  C04B35/64 ,  H10N30/097 ,  H10N30/8542 ,  C04B2235/3234 ,  C04B2235/3249 ,  C04B2235/3255 ,  C04B2235/3262 ,  C04B2235/3272 ,  C04B2235/3281 ,  C04B2235/6025 ,  C04B2235/6567 ,  C04B2235/765 ,  C04B2235/786

Abstract: A piezoelectric material composition may be represented by Equation 1,









0
.
9

⁢
6
⁢

(


Na
a

⁢

K

1
-
a



)

⁢

(


Nb
b

(

T

1
-
b


)

)

⁢

O
3


-


(

0.04
-
x

)

⁢

M
A

⁢

M
B

⁢

O
3


-


x
⁡
(


Bi
c

⁢

Ag

1
-
c



)

⁢

M
B

⁢

O
3


+

d
⁢

mol
⁢

%
⁢

A





[

Equation
⁢

1

]









where T is Sb, Ta, or V, MA is Sr, Ba, or Ca, MB is Zr, Hf, Ti, or Sn, and A is Fe2O3, Co2O3, Mn2O3, ZnO, GeO2, CuO, or NiO, and
0.40≤a≤0.60, 0.90≤b≤1.00, 0.30≤c≤0.70, 0.00≤x≤0.04, and 0.00

公开(公告)号：US20240072208A1

公开(公告)日：2024-02-29

申请号：US18232689

申请日：2023-08-10

Applicant: LG Display Co., Ltd.

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

IPC: H01L33/38 ,  H01L33/26 ,  H01L33/40 ,  H01L33/62 ,  H10N30/20

CPC classification number: H01L33/38 ,  H01L33/26 ,  H01L33/40 ,  H01L33/62 ,  H10N30/20 ,  H10N30/071

Abstract: A display apparatus includes a display panel having a base member, a plate member, and a display part disposed between the base member and the plate member, a vibration layer disposed at a rear surface of the plate member, and an electrode layer disposed at the vibration layer. Further, a signal cable can be provided, which is electrically coupled to the plate member and the electrode layer.

公开(公告)号：US20240013762A1

公开(公告)日：2024-01-11

申请号：US18472152

申请日：2023-09-21

Applicant: LG DISPLAY CO., LTD.

Inventor： Uihyeon JEONG ,  Chiwan KIM ,  YongWoo LEE ,  Sungwook KO

IPC: H05K5/00 ,  H05K5/02 ,  H10N30/20

CPC classification number: H05K5/0018 ,  H05K5/0217 ,  H10N30/20

Abstract: A display apparatus includes a display panel configured to display an image, a vibration generating device at a rear surface of the display panel to vibrate the display panel, and a supporting member at the rear surface of the display panel and including a first hole. The first hole may be disposed at a whole region or periphery of the vibration generating device.

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：US20220208163A1

公开(公告)日：2022-06-30

申请号：US17559977

申请日：2021-12-22

Applicant: LG Display Co., Ltd.

Inventor： Seunghyun SUNG ,  YongWoo LEE ,  Uihyeon JEONG

IPC: G10K9/125 ,  B60R11/02 ,  G06F3/16

Abstract: A vibration device can include a vibration generator including a vibration portion, in which the vibration portion includes a plurality of inorganic portions having piezoelectric characteristics, the plurality of inorganic portions being spaced apart from each other; and an organic portion disposed between at least two inorganic portions among the plurality of inorganic portions, the organic portion having non-piezoelectric characteristics. The organic portion includes a first organic portion and a second organic portion, the first organic portion being disposed between one of the plurality of inorganic portions and the second organic portion. Further, an elastic modulus of the first organic portion is lower than an elastic modulus of the second organic portion.

公开(公告)号：US20210306741A1

公开(公告)日：2021-09-30

申请号：US17218605

申请日：2021-03-31

Applicant: LG Display Co., Ltd.

Inventor： Chiwan KIM ,  YongWoo LEE ,  SeongYong UHM ,  Sungwook KO ,  Uihyeon JEONG

IPC: H04R1/40 ,  H04R1/02 ,  H04R3/12 ,  H04R7/06 ,  H04R17/00 ,  G06F3/01

Abstract: A vibration device enabling a large area and a display apparatus including the vibration device are provided. The vibration device may be configured to include a vibration array including a plurality of vibration modules which are spaced apart from one another by a first interval of less than 3 cm in a first direction.