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.

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

公开(公告)号：US20210191166A1

公开(公告)日：2021-06-24

申请号：US17112176

申请日：2020-12-04

Applicant: LG Display Co., Ltd.

Inventor： Sooyoun KIM ,  SeongYong UHM ,  SEONG-IL KIM ,  SeokHo LEE

IPC: G02F1/137 ,  G02F1/1334 ,  G02F1/1335 ,  G02F1/1343

Abstract: The present disclosure relates to a privacy film and a display device including the privacy film, and more specifically, to a privacy film capable of reducing a viewing angle by including a first substrate, a first electrode disposed on the first substrate, a plurality of light blocking patterns disposed on the first electrode, a light transmission layer disposed on the first electrode and the plurality of light blocking patterns and including a plurality of capsules, a second electrode disposed on the light transmission layer, and a second substrate disposed on the second electrode, and a display device including the privacy film.

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：US20240073623A1

公开(公告)日：2024-02-29

申请号：US18388092

申请日：2023-11-08

Applicant: LG Display Co., Ltd.

Inventor： YuSeon KHO ,  Sooyoun KIM

IPC: H04R17/00

CPC classification number: H04R17/00 ,  H04R2499/13 ,  H04R2499/15

Abstract: An apparatus includes a vibration member, a housing at a rear surface of the vibration member, a vibration apparatus configured to vibrate the vibration member, and a curvature variable layer between the vibration member and the vibration apparatus, wherein the vibration member includes at least one flat portion and at least one flexural portion adjacent to the at least one flat portion.

公开(公告)号：US20230217833A1

公开(公告)日：2023-07-06

申请号：US17980553

申请日：2022-11-04

Applicant: LG Display Co., Ltd.

Inventor： Sooyoun KIM ,  Yong-Su HAM ,  YongWoo LEE ,  YuSeon KHO ,  Jaeyoung LIM

IPC: H01L41/053

CPC classification number: H01L41/053

Abstract: A vibration apparatus and an apparatus including the same are provided. The vibration apparatus includes a first vibration portion including a first material and a second vibration portion disposed adjacent to the first vibration portion, the second vibration portion including a second material. The apparatus including the vibration apparatus further includes a vibration object; a vibration generating apparatus at the vibration object; and a connection member between the vibration object and the vibration generating apparatus.

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：US20230217827A1

公开(公告)日：2023-07-06

申请号：US17967781

申请日：2022-10-17

Applicant: LG Display Co., Ltd.

Inventor： YuSeon KHO ,  Jaeyoung LIM ,  Sooyoun KIM ,  YongWoo LEE

IPC: H01L41/09 ,  H01L41/047 ,  H01L41/18 ,  H04R17/10

CPC classification number: H01L41/09 ,  H01L41/0472 ,  H01L41/18 ,  H04R17/10 ,  H04R2499/15

Abstract: A vibration apparatus includes a vibration device. The vibration device includes a vibration portion including a piezoelectric material, a first electrode portion at a first surface of the vibration portion and configured as a plurality of circular patterns, and a second electrode portion at a second surface different from the first surface of the vibration portion and configured as a single electrode, and the vibration device generates an ultrasound wave.

公开(公告)号：US20210181549A1

公开(公告)日：2021-06-17

申请号：US17118839

申请日：2020-12-11

Applicant: LG DISPLAY CO., LTD.

Inventor： Sooyoun KIM ,  SeokHo LEE ,  SEONG-IL KIM

IPC: G02F1/13 ,  G02F1/1334 ,  G02F1/1335

Abstract: The present disclosure relates a privacy film and a display device including the privacy film. More specifically, by including a light collector including a plurality of first light blocking patterns arranged to be spaced apart from one another, an adhesive layer disposed on the light collector and having at least one first groove in at least a part overlapping the plurality of first light blocking patterns, and a light diffuser disposed on the adhesive layer and including a plurality of capsules, the privacy film and the display device including the privacy film can prevent light discharge efficiency of the privacy film from being degraded and be easily reworked.