公开(公告)号：US20170192507A1

公开(公告)日：2017-07-06

申请号：US15355922

申请日：2016-11-18

Applicant: LG DISPLAY CO., LTD.

Inventor： YongWoo Lee ,  Yong-Su Ham ,  Taeheon Kim ,  YuSeon Kho ,  MyungJin Lim ,  Seulgi Choi

IPC: G06F3/01 ,  B29C65/48 ,  B32B7/12 ,  G06F3/041

CPC classification number: G06F3/016 ,  B29C65/4845 ,  B29L2031/3475 ,  B32B7/12 ,  B32B37/12 ,  B32B2038/0076 ,  B32B2307/20 ,  B32B2310/0831 ,  B32B2457/208 ,  G06F3/041 ,  G06F3/0412 ,  G06F2203/04103 ,  G06F2203/04112

Abstract: Provided is a contact sensitive device. The contact sensitive device includes an electroactive layer, a plurality of first electrodes, a plurality of second electrodes, and a bonding layer. The plurality of first electrodes is disposed on one surface of the electroactive layer and the plurality of second electrodes is disposed on the other surface of the electroactive layer. The bonding layer covers one surface of the electroactive layer and consists of a first part corresponding to the plurality of first electrodes and a second part excluding the first part. The first part and the second part of the bonding layer have different elastic moduli.

公开(公告)号：US20160188082A1

公开(公告)日：2016-06-30

申请号：US14757438

申请日：2015-12-23

Applicant: LG DISPLAY CO., LTD.

Inventor： Yong-Su Ham ,  SuSeok Choi ,  Taeheon Kim ,  YongWoo Lee ,  MyungJin Lim ,  Seulgi Choi

IPC: G06F3/041 ,  G06F3/047 ,  G06F3/044

Abstract: Provided is a touch panel. The touch panel includes a first substrate, a second substrate, a first electrode, a second electrode, a third electrode, and a dielectric layer. The second substrate faces the first substrate. The first electrode is on one surface of the first substrate. The second electrode is spaced apart from the first electrode on a same plane as the first electrode. The third electrode is on one surface of the second substrate and overlaps the first electrode and the second electrode. The dielectric layer is between the first electrode and the third electrode and between the second electrode and the third electrode and includes an anisotropic dielectric material.

Abstract translation: 提供触摸屏。 触摸面板包括第一基板，第二基板，第一电极，第二电极，第三电极和电介质层。 第二基板面向第一基板。 第一电极在第一衬底的一个表面上。 第二电极与第一电极在与第一电极相同的平面上间隔开。 第三电极在第二基板的一个表面上并与第一电极和第二电极重叠。 电介质层在第一电极和第三电极之间以及第二电极和第三电极之间，并且包括各向异性介电材料。

公开(公告)号：US12069953B2

公开(公告)日：2024-08-20

申请号：US18242508

申请日：2023-09-05

Applicant: LG Display Co., Ltd. ,  Korea University Research and Business Foundation

Inventor： Taeheon Kim ,  Sahn Nahm ,  YongGyoon Jang ,  Jonghyun Kim ,  Ku-Tak Lee ,  Chiwan Kim ,  Sung-Eui Shin ,  YongWoo Lee ,  Seok-June Chae

IPC: H10N30/853 ,  G06F1/16 ,  G06F3/01 ,  G06F3/041 ,  G10K9/122

CPC classification number: H10N30/8542 ,  G06F1/1605 ,  G06F3/016 ,  G06F3/0412 ,  G10K9/122

Abstract: A piezoelectric element comprising a compound represented by Formula 1, a piezoelectric device including the piezoelectric element, a vibration module including the piezoelectric device, and a display apparatus including the piezoelectric device are provided, where

(1−x)(LizNa0.5-zK0.5)(Nb1-ySby)O3·xCaZrO3  [Formula 1]



where x, y, and z have a range of 0.001≤x≤0.2, a range of 0≤y≤0.5, and a range of 0≤z≤0.2, respectively.

公开(公告)号：US11974066B2

公开(公告)日：2024-04-30

申请号：US17145623

申请日：2021-01-11

Applicant: LG Display Co., Ltd.

Inventor： Sung-Eui Shin ,  Chiwan Kim ,  Taeheon Kim ,  YongWoo Lee ,  Kyungyeol Ryu ,  YuSeon Kho

IPC: H04N5/64 ,  G02F1/1333 ,  H04R1/02 ,  H04R17/00 ,  H10K50/84

CPC classification number: H04N5/642 ,  G02F1/133308 ,  H04R1/025 ,  H04R17/00 ,  H10K50/841 ,  G02F1/133314 ,  H04R2499/15

Abstract: A display apparatus includes a display panel, a back cover accommodating the display panel, and a sound output unit including at least one sound output module disposed to overlap the display panel. The at least one sound output module includes a support plate including an uneven surface and a piezoelectric element attached on the uneven surface of the support plate and has a shape corresponding to the uneven surface of the support plate. Accordingly, a sound having a straight characteristic within an audible frequency domain may be output, thereby enhancing a sense of reality and an immersion of a viewer watching an image displayed by the display apparatus.

公开(公告)号：US11790686B2

公开(公告)日：2023-10-17

申请号：US17115286

申请日：2020-12-08

Applicant: LG Display Co., Ltd.

Inventor： YuSeon Kho ,  Yong-Su Ham ,  YongWoo Lee

IPC: H01L41/08 ,  G06V40/13 ,  G06F3/16 ,  G06F3/01 ,  A61B5/1172

CPC classification number: G06V40/1306 ,  G06F3/016 ,  G06F3/16 ,  A61B5/1172

Abstract: A composite piezoelectric element and an electronic device having the same are disclosed, in which the composite piezoelectric element includes insulating films and piezoelectric bodies, which are alternately arranged, wherein the piezoelectric bodies may be categorized into general piezoelectric bodies used as at least one of a haptic actuator, a speaker actuator and a receiver actuator, and a finger scan recognition piezoelectric body for finger scan recognition.

公开(公告)号：US11140492B2

公开(公告)日：2021-10-05

申请号：US16654562

申请日：2019-10-16

Applicant: LG Display Co., Ltd.

Inventor： YongGyoon Jang ,  Chiwan Kim ,  Taeheon Kim ,  Sung-Eui Shin ,  YongWoo Lee ,  Kyungyeol Ryu ,  YuSeon Kho

IPC: H04R17/00 ,  H04R1/02

Abstract: A display apparatus includes a display panel including configured to display an image and a sound generating device on a rear surface of the display panel, the sound generating device being configured to vibrate the display panel to generate sound. The sound generating device includes a first structure and a second structure over or under the first structure, the second structure including a first part having a piezoelectric characteristic and a second part between adjacent first parts to have flexibility.

公开(公告)号：US10963052B2

公开(公告)日：2021-03-30

申请号：US15798151

申请日：2017-10-30

Applicant: LG Display Co., Ltd.

Inventor： Seulgi Choi ,  Yong-Su Ham ,  Taeheon Kim ,  YongWoo Lee ,  Kyungyeol Ryu ,  YuSeon Kho ,  MyungJin Lim

IPC: G06F3/01 ,  G06F3/041 ,  G06F3/044 ,  G02F1/1333

Abstract: Provided are a touch sensitive element and a display device including the same. According to the exemplary embodiment of the present disclosure, a touch sensitive element, includes: an electroactive layer which is formed of electroactive polymer (EAP); an electrode which is disposed on at least one surface of the electroactive layer; and a hard coating layer which is disposed on the electroactive layer and the electrode and has a negative coefficient of thermal expansion (CTE). Therefore, vibration effect in a vertical direction is maximized and impact resistance may be improved.

公开(公告)号：US10942594B2

公开(公告)日：2021-03-09

申请号：US16201793

申请日：2018-11-27

Applicant: LG Display Co., Ltd.

Inventor： Chiwan Kim ,  Taeheon Kim ,  Sung-Eui Shin ,  YongWoo Lee ,  Kyungyeol Ryu ,  YuSeon Kho

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1333 ,  H01L27/32

Abstract: A touch panel includes a plurality of first electrodes which extends in a first direction. The touch panel further includes an electroactive layer which is disposed on the plurality of first electrodes and is formed of an electroactive material. The touch panel further includes a plurality of second electrodes which is disposed on the electroactive layer and extends in a second direction which is different from the first direction. The touch panel further includes an insulating layer which is disposed to cover the electroactive layer and the plurality of second electrodes. The touch panel further includes a plurality of third electrodes which is disposed on the insulating layer and extends in the second direction.

公开(公告)号：US10924704B2

公开(公告)日：2021-02-16

申请号：US16716321

申请日：2019-12-16

Applicant: LG Display Co., Ltd.

Inventor： Sung-Eui Shin ,  Chiwan Kim ,  Taeheon Kim ,  YongWoo Lee ,  Kyungyeol Ryu ,  YuSeon Kho

IPC: H04R1/00 ,  H04R25/00 ,  H04N5/64 ,  H01L51/52 ,  G02F1/1333 ,  H04R17/00 ,  H04R1/02

Abstract: A display apparatus includes a display panel, a back cover accommodating the display panel, and a sound output unit including at least one sound output module disposed to overlap the display panel. The at least one sound output module includes a support plate including an uneven surface and a piezoelectric element attached on the uneven surface of the support plate and has a shape corresponding to the uneven surface of the support plate. Accordingly, a sound having a straight characteristic within an audible frequency domain may be output, thereby enhancing a sense of reality and an immersion of a viewer watching an image displayed by the display apparatus.

公开(公告)号：US10795470B2

公开(公告)日：2020-10-06

申请号：US16019935

申请日：2018-06-27

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyungyeol Ryu ,  Chiwan Kim ,  Taeheon Kim ,  Sung-Eui Shin ,  YongWoo Lee ,  YuSeon Kho

IPC: G06F3/041 ,  C08G79/025 ,  G06F3/01

Abstract: Provided are a touch sensitive device and a display device including the touch sensitive device. The touch sensitive device according to an embodiment of the present disclosure includes an electro-active layer formed of polyphosphazene substituted with an aryloxy group at a phosphorus atom in the backbone of the polyphosphazene, and electrodes disposed on at least one surface of the electro-active layer. The touch sensitive device according to an embodiment of the present disclosure has an excellent intensity of vibrations due to characteristics of the polyphosphazene including the substituted aryloxy group and is flame retardant and non-toxic.