公开(公告)号：US11790686B2

公开(公告)日：2023-10-17

申请号：US17115286

申请日：2020-12-08

申请人： LG Display Co., Ltd.

发明人： YuSeon Kho ,  Yong-Su Ham ,  YongWoo Lee

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

CPC分类号： G06V40/1306 ,  G06F3/016 ,  G06F3/16 ,  A61B5/1172

摘要： 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：US10963052B2

公开(公告)日：2021-03-30

申请号：US15798151

申请日：2017-10-30

申请人： LG Display Co., Ltd.

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

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

摘要： 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：US10444891B2

公开(公告)日：2019-10-15

申请号：US14757438

申请日：2015-12-23

申请人： LG DISPLAY CO., LTD.

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

IPC分类号： G06F3/041 ,  G06F3/044 ,  G02F1/1333

摘要： 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.

公开(公告)号：US10409408B2

公开(公告)日：2019-09-10

申请号：US15824646

申请日：2017-11-28

申请人： LG DISPLAY CO., LTD.

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

IPC分类号： C08L41/00 ,  G06F3/041 ,  H01L41/18 ,  C09D127/16 ,  C08F20/38 ,  H01L41/113 ,  H01L41/193 ,  C08F220/38

摘要： The present disclosure relates to a touch sensitive element and a display device including the same. According to an exemplary embodiment of the present disclosure, the touch sensitive element includes an electroactive film which is formed of a fluorine based terpolymer and a polymer represented by Chemical Formula 1, wherein R is an ethyl group or a methyl group, and n is an integer of 1 or larger.

公开(公告)号：US12120485B2

公开(公告)日：2024-10-15

申请号：US18386246

申请日：2023-11-01

申请人： LG Display Co., Ltd.

发明人： YuSeon Kho ,  Yong-Su Ham ,  YongWoo Lee

IPC分类号： H04R17/00 ,  B60Q9/00 ,  H04R1/02

CPC分类号： H04R17/00 ,  B60Q9/00 ,  H04R1/025 ,  H04R2499/13

摘要： A sound-generating apparatus and a vehicle including the same are provided. A sound-generating apparatus includes: a plurality of first portions at a vibration region including a bendable region and a peripheral portion connected to the bendable region; and a plurality of second portions between the plurality of first portions, wherein two or more second portions at the bendable region among the plurality of second portions have a cross-sectional shape that differs from a cross-sectional shape of another second portion disposed at the peripheral portion among the plurality of second portions.

公开(公告)号：US12094445B2

公开(公告)日：2024-09-17

申请号：US18451368

申请日：2023-08-17

申请人： LG Display Co., Ltd.

发明人： Yuseon Kho ,  Yong-Su Ham ,  YongWoo Lee

IPC分类号： G06F3/16 ,  G06F1/16 ,  G06V40/12 ,  G10K9/122

CPC分类号： G10K9/122 ,  G06F1/1605 ,  G06F3/16

摘要： A display apparatus includes a display panel displaying an image and a vibration generating device disposed on a rear surface of the display panel to vibrate the display panel. The vibration generating device includes a piezoelectric structure including a first region and a second region, the first region has a vibration characteristic of a first frequency, and the second region has a vibration characteristic of a second frequency which differs from the first frequency.

公开(公告)号：US12004373B2

公开(公告)日：2024-06-04

申请号：US17111980

申请日：2020-12-04

申请人： LG Display Co., Ltd.

发明人： YuSeon Kho ,  Yong-Su Ham ,  YongWoo Lee

IPC分类号： H10K59/00 ,  G06F3/01 ,  H10K50/842 ,  H10N30/20

CPC分类号： H10K59/00 ,  G06F3/016 ,  H10K50/8426 ,  H10N30/204

摘要： A display apparatus includes a display panel configured to display an image and a plurality of vibration generating devices configured to vibrate the display panel. Each of the plurality of vibration generating devices includes a plurality of first portions having a piezoelectric characteristic and a plurality of second portions disposed near the plurality of first portions to have an expansion coefficient, and the plurality of vibration generating devices have different expansion coefficients.

公开(公告)号：US11747905B2

公开(公告)日：2023-09-05

申请号：US17108597

申请日：2020-12-01

申请人： LG Display Co., Ltd.

发明人： Yong-Su Ham

IPC分类号： H04R1/02 ,  H04R17/00 ,  G06F3/041 ,  G06F3/01

CPC分类号： G06F3/016 ,  H04R1/028 ,  H04R17/00 ,  G06F3/041 ,  H04R2400/03 ,  H04R2499/15

摘要： A display apparatus includes a display panel configured to display an image and a vibration generating device configured to vibrate the display panel. The vibration generating device includes a plurality of first portions having a piezoelectric characteristic, and a plurality of second portions disposed between the plurality of first portions to have flexibility.

公开(公告)号：US10963664B2

公开(公告)日：2021-03-30

申请号：US16900523

申请日：2020-06-12

申请人： LG Display Co., Ltd.

发明人： Chi-Wan Kim ,  Yong-Su Ham ,  Yong-Woo Lee ,  Kyung-Yeol Ryu ,  Yu-Seon Kho

IPC分类号： G06K9/00 ,  G06F21/32

摘要： A sensor panel includes a substrate; a sensing part on the substrate and including a plurality of sensors; and a partition wall between adjacent sensors, wherein each sensor includes a first sensor electrode, a piezoelectric layer and a second sensor electrode, and wherein the partition wall has a lower dielectric constant than the piezoelectric layer.

公开(公告)号：US10959025B2

公开(公告)日：2021-03-23

申请号：US16443090

申请日：2019-06-17

申请人： LG Display Co., Ltd.

发明人： YongWoo Lee ,  Yong-Su Ham ,  Taeheon Kim ,  Sung-Eui Shin

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

摘要： 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.