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.

公开(公告)号：US20210176567A1

公开(公告)日：2021-06-10

申请号：US17180560

申请日：2021-02-19

Applicant: LG Display Co., Ltd.

Inventor： YongWoo LEE ,  Yong-Su HAM ,  Taeheon Kim ,  Sung-Eui SHIN

IPC: H04R17/00 ,  H01L41/08 ,  H01L41/09 ,  H01L41/083 ,  H01L41/047 ,  H01L41/37

Abstract: A flexible vibration module is disclosed. The flexible vibration module includes a piezoelectric composite layer, including: a plurality of piezoelectric portions each having a piezoelectric characteristic, where at least two of the plurality of piezoelectric portions have different sizes; and a flexible portion between the plurality of piezoelectric portions.

公开(公告)号：US20200252727A1

公开(公告)日：2020-08-06

申请号：US16855842

申请日：2020-04-22

Applicant: LG DISPLAY CO., LTD.

Inventor： Taeheon KIM ,  Chiwan KIM ,  Sung-Eui SHIN ,  YongWoo LEE ,  Kyungyeol RYU ,  YuSeon KHO

IPC: H04R19/02 ,  H04R1/02

Abstract: A vibration generating device includes an electroactive layer having a first surface and a second surface opposite to the first surface, and including an unevenness structure; and a first electrode and a second electrode on at least one of the first surface and the second surface of the electroactive layer, wherein one or more of the first electrode and the second electrode covers an entire surface of at least one or more of the first surface and the second surface of the electroactive layer including the unevenness structure.

公开(公告)号：US20190286240A1

公开(公告)日：2019-09-19

申请号：US16430241

申请日：2019-06-03

Applicant: LG Display Co., Ltd.

Inventor： TaeHeon KIM ,  SuSeok CHOI ,  YongSu HAM ,  YongWoo LEE ,  KyungYeol RYU ,  YuSeon KHO

IPC: G06F3/01 ,  G06F3/041 ,  G06F3/044

Abstract: The touch sensitive element according to an exemplary embodiment of the present disclosure includes an electroactive layer, an electrode, and a plurality of beads. The electroactive layer includes an electroactive polymer. The electrode is disposed on at least one surface of the electroactive layer. The plurality of beads is dispersed in the electroactive layer and has a diameter larger than the thickness of the electroactive layer.

公开(公告)号：US20190122018A1

公开(公告)日：2019-04-25

申请号：US16108849

申请日：2018-08-22

Applicant: LG Display Co., Ltd.

Inventor： YuSeon KHO ,  Chiwan KIM ,  Taeheon KIM ,  Sung-Eui SHIN ,  YongWoo LEE ,  Kyungyeol RYU

IPC: G06K9/00 ,  H04R17/00

Abstract: A piezoelectric panel speaker and an electronic apparatus including the same are disclosed. The piezoelectric panel speaker may include a piezoelectric panel including at least one hole and configured to vibrate, and a fingerprint sensor accommodated into the one hole and configured to sense biometric information.

公开(公告)号：US20180164888A1

公开(公告)日：2018-06-14

申请号：US15820204

申请日：2017-11-21

Applicant: LG Display Co., Ltd.

Inventor： Yong-Su HAM ,  Taeheon KIM ,  YongWoo LEE ,  Kyungyeol RYU ,  YuSeon KHO ,  MyungJin LIM

IPC: G06F3/01 ,  G02F1/1333

Abstract: Provided is a display device. The display device includes a display panel, a vibration transfer layer, and a touch sensitive element. The vibration transfer layer is disposed under the display panel and has a plurality of openings. The touch sensitive element is disposed under the vibration transfer layer.

公开(公告)号：US20180150151A1

公开(公告)日：2018-05-31

申请号：US15822188

申请日：2017-11-26

Applicant: LG Display Co., Ltd.

Inventor： YuSeon KHO ,  YongWoo LEE ,  YongSu HAM ,  TaeHeon KIM ,  KyungYeol RYU ,  MyungJin LIM ,  SeulGi CHOI

IPC: G06F3/041 ,  G06F3/01 ,  C09D127/16

CPC classification number: G06F3/041 ,  C09D127/16 ,  G06F3/016 ,  H01L41/193 ,  C08L33/22

Abstract: The present disclosure related to a touch sensitive element and a display device including the same. The touch sensitive element according to an exemplary aspect of the present disclosure includes an electroactive film which is formed of a polyvinylidene fluoride (PVDF) based polymer and a cyanide (CN) based polymer.

公开(公告)号：US20180148546A1

公开(公告)日：2018-05-31

申请号：US15820205

申请日：2017-11-21

Applicant: LG Display Co., Ltd.

Inventor： TaeHeon KIM ,  YongSu HAM ,  YongWoo LEE ,  KyungYeol RYU ,  YuSeon KHO ,  MyungJin LIM ,  SeulGi CHOI

IPC: C08G79/08 ,  G06F3/041

CPC classification number: C08G79/08 ,  C07F7/00 ,  C07F15/0033 ,  C08G79/00 ,  C09D185/04 ,  G06F3/041 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04103

Abstract: Provided are a touch sensitive element and a display device including the same. The touch sensitive element according to an exemplary aspect of the present disclosure includes an electroactive layer formed of a linear boron nitride polymer and an electrode disposed on at least one surface of the electroactive layer. Therefore, a piezoelectricity of the electroactive layer is improved to improve vibration strength of the touch sensitive element and significantly improve heat resistance.

公开(公告)号：US20170192560A1

公开(公告)日：2017-07-06

申请号：US15392465

申请日：2016-12-28

Applicant: LG DISPLAY CO., LTD.

Inventor： Yong-Su HAM ,  Taeheon KIM ,  YongWoo LEE ,  YuSeon KHO ,  MyungJin LIM ,  Seulgi CHOI

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/016 ,  G06F3/041 ,  G06F3/0412 ,  H04M1/0266

Abstract: Provided is a display device. The display device includes: a touch sensitive element including an electroactive layer and a plurality of electrodes disposed on at least one of the top surface and the bottom surface of the electroactive layer; a shielding layer on the touch sensitive element; a display panel on the shielding layer; and a touch sensor integrated in the display panel and including a plurality of first touch electrodes and a plurality of second touch electrodes spaced apart from the plurality of first touch electrodes, and the shielding layer is electrically connected with the plurality of first touch electrodes or the plurality of second touch electrodes.

公开(公告)号：US20170192509A1

公开(公告)日：2017-07-06

申请号：US15392401

申请日：2016-12-28

Applicant: LG Display Co., Ltd.

Inventor： Taeheon KIM ,  Yong-Su HAM ,  YongWoo LEE ,  YuSeon KHO ,  MyungJin LIM ,  Seulgi CHOI

IPC: G06F3/01 ,  B32B27/30 ,  H01L27/32 ,  G06F3/041 ,  G02F1/1333

CPC classification number: G06F3/016 ,  B32B27/304 ,  B32B2307/20 ,  B32B2307/418 ,  B32B2457/208 ,  G02F1/13338 ,  G06F3/041 ,  G06F3/0412 ,  G06F3/0416 ,  H01L27/323 ,  H01L41/1132 ,  H01L41/193 ,  H01L41/22 ,  H01L41/253

Abstract: Provided are a touch sensitive device and a display device including the same. The touch sensitive device includes: a first electroactive layer formed of a ferroelectric polymer; a plurality of electrodes disposed on at least one surface of the first electroactive layer; and a second electroactive layer in contact with the plurality of electrodes and the first electroactive layer and formed of an electroactive polymer. A coating layer having a low refractive index and formed of an electroactive polymer is formed on the first electroactive layer formed of a ferroelectric polymer having a low light transmittance, and, thus, a vibration level and a light transmittance of the touch sensitive device can be improved simultaneously.