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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
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.
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公开(公告)号：US20250024206A1
公开(公告)日：2025-01-16
申请号：US18754438
申请日：2024-06-26
Applicant: LG Display Co., Ltd.
Inventor： HwaYoul LEE , Sooyoun KIM , YongWoo LEE , Uihyeon JEONG , Daesu KIM
IPC: H04R17/00 , H04R31/00 , H10N30/092 , H10N30/85
Abstract: A vibration device according to one or more example aspects of the present disclosure may comprise a first electrode layer, a second electrode layer, and a piezoelectric layer between the first electrode layer and the second electrode layer. The piezoelectric layer may include a plurality of grooves.
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公开(公告)号：US20240224807A1
公开(公告)日：2024-07-04
申请号：US18387095
申请日：2023-11-06
Applicant: LG DISPLAY CO., LTD.
Inventor： Uihyeon JEONG , YongWoo LEE , JounHo LEE , Sooyoun KIM , HwaYoul LEE
IPC: H10N30/853 , H10N30/053 , H10N30/067 , H10N30/20 , H10N30/50
CPC classification number: H10N30/853 , H10N30/053 , H10N30/067 , H10N30/20 , H10N30/50
Abstract: A piezoelectric material composition includes a first material, and a second material in the first material, wherein the piezoelectric material composition represented by (Equation 1) 0.96(NaaK1-a)(Nbb(Sb1-b))O3-(0.04-x)MZrO3-x(BicAg1-c)ZrO3+d mol % E, where 1, M denotes strontium (Sr), barium (Ba), or calcium (Ca), E denotes the second material, 0.40≤a≤0.60, 0.90≤b≤0.98, 0.30≤c≤0.70, 0.00
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Patent Agency Ranking
公开(公告)号：US20240224805A1
公开(公告)日：2024-07-04
申请号：US18389135
申请日：2023-11-13
Applicant: LG Display Co., Ltd.
Inventor： Sooyoun KIM , YongWoo LEE , HwaYoul LEE , Uihyeon JEONG , JounHo LEE
IPC: H10N30/50 , H10N30/053 , H10N30/853
CPC classification number: H10N30/50 , H10N30/053 , H10N30/8536 , H10N30/8542 , H10N30/8561
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, differing from the first surface, of the piezoelectric device layer, wherein the piezoelectric device layer includes a first vibration portion and a second vibration portion each provided on a same plane to have different characteristics.
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公开(公告)号：US20240223962A1
公开(公告)日：2024-07-04
申请号：US18386922
申请日：2023-11-03
Applicant: LG Display Co., Ltd.
Inventor： Uihyeon JEONG , YongWoo LEE , JounHo LEE , Sooyoun KIM , HwaYoul LEE
CPC classification number: H04R17/00 , H04R1/028 , H10N30/871 , H04R2499/15
Abstract: A vibration apparatus includes a conductive substrate, at least one vibration layer at one surface of the conductive substrate, and at least one electrode layer at one surface of the vibration layer. The vibration layer and the electrode layer are alternately arranged in a stack on the surface of the conductive substrate.
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公开(公告)号：US20240217882A1
公开(公告)日：2024-07-04
申请号：US18216756
申请日：2023-06-30
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
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.
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公开(公告)号：US20230217185A1
公开(公告)日：2023-07-06
申请号：US17980488
申请日：2022-11-03
Applicant: LG Display Co., Ltd.
Inventor： HwaYoul LEE , YongWoo LEE , Yong-Su HAM , Seunghyun SUNG
IPC: H04R17/00
CPC classification number: H04R17/00 , H04R2499/15
Abstract: An apparatus includes a vibration portion, a first protection member covering a first surface of the vibration portion, and a second protection member covering a second surface of the vibration portion, wherein at least one of the first protection member and the second protection member includes a first layer including a metal material or an inorganic material.
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