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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：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
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