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公开(公告)号：US11812666B2
公开(公告)日：2023-11-07
申请号：US17893881
申请日：2022-08-23
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 , G06F3/041 , G10K9/122 , G06F1/16 , G06F3/01
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：US11770645B2
公开(公告)日：2023-09-26
申请号：US17746959
申请日：2022-05-18
Applicant: LG Display Co., Ltd.
Inventor： Taeheon Kim , Chiwan Kim , Sung-Eui Shin , YongWoo Lee , Kyungyeol Ryu , YuSeon Kho , YongGyoon Jang
CPC classification number: H04R1/028 , H04R17/00 , H10N30/20 , H10N30/857 , H10N30/883 , H10N39/00 , H04R2499/15
Abstract: A display apparatus includes a display panel configured to display an image and a sound generating device on a rear surface of the display panel. The sound generating device is configured to vibrate the display panel to generate sound. The sound generating device includes a first structure and a first passivation layer on one side of the first structure, at least a portion of the first passivation layer having a non-flat shape.
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公开(公告)号：US11669126B2
公开(公告)日：2023-06-06
申请号：US17131389
申请日：2020-12-22
Applicant: LG Display Co., Ltd.
Inventor： Sungwook Ko , YongWoo Lee , Chiwan Kim , Taeheon Kim , Sung-Eui Shin
CPC classification number: G06F1/1605 , G06F3/16 , G09F9/301 , G10K9/122 , G06F1/1652
Abstract: The present disclosure relates to a flexible vibration film and a display apparatus having the same. A flexible vibration film includes: a vibration layer; a first electrode layer disposed on a bottom surface of the vibration layer; and a second electrode layer disposed on a top surface of the vibration layer, wherein the vibration layer includes: a first vibration unit having a first vibration characteristics; a second vibration unit having a second vibration characteristics; and a flexible insulating part disposed between the first vibration unit and the second vibration unit, and wherein the first electrode layer includes: a first part corresponding to the first vibration unit; and a second part corresponding to the second vibration unit.
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公开(公告)号：US11596980B2
公开(公告)日：2023-03-07
申请号：US16655928
申请日：2019-10-17
Applicant: LG Display Co., Ltd.
Inventor： YuSeon Kho , Chiwan Kim , Taeheon Kim , Sung-Eui Shin , YongWoo Lee , Kyungyeol Ryu , YongGyoon Jang
Abstract: A vibration generating device includes a first piezoelectric device including at least one slit, a first electrode on a first surface of the first piezoelectric device, and a second electrode on a second surface opposite to the first surface of the first piezoelectric device.
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公开(公告)号：US11412331B2
公开(公告)日：2022-08-09
申请号：US17169056
申请日：2021-02-05
Applicant: LG Display Co., Ltd.
Inventor： YongWoo Lee , Chiwan Kim , Taeheon Kim , Sung-Eui Shin , Kyungyeol Ryu , YuSeon Kho , YongGyoon Jang , Yong-Su Ham , Sungwook Ko
Abstract: A display apparatus includes a display panel configured to display an image and a plurality of vibration generating devices on a rear surface of the display panel, the display panel being at least one of a vibration plate configured to output sound and a vibration plate configured to output a haptic vibration. Each of the plurality of vibration generating devices includes a first electrode under the display panel, a piezoelectric member under the first electrode, a damping member in a periphery the piezoelectric member, and a second electrode under the piezoelectric member.
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Patent Agency Ranking
公开(公告)号：US10951992B2
公开(公告)日：2021-03-16
申请号：US16722713
申请日：2019-12-20
Applicant: LG Display Co., Ltd.
Inventor： YongWoo Lee , Chiwan Kim , Taeheon Kim , Sung-Eui Shin , Kyungyeol Ryu , YuSeon Kho , YongGyoon Jang , Yong-Su Ham , Sungwook Ko
Abstract: A display apparatus includes a display panel configured to display an image and a plurality of vibration generating devices on a rear surface of the display panel, the display panel being at least one of a vibration plate configured to output sound and a vibration plate configured to output a haptic vibration. Each of the plurality of vibration generating devices includes a first electrode under the display panel, a piezoelectric member under the first electrode, a damping member in a periphery the piezoelectric member, and a second electrode under the piezoelectric member.
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公开(公告)号：US10860130B2
公开(公告)日：2020-12-08
申请号：US16130770
申请日：2018-09-13
Applicant: LG Display Co., Ltd.
Inventor： YuSeon Kho , Chiwan Kim , Taeheon Kim , Sung-Eui Shin , YongWoo Lee , Kyungyeol Ryu
IPC: G06F3/041 , G06F3/01 , G06F1/16 , G06F3/0354
Abstract: A display device to an embodiment of the present disclosure comprises a display panel including an active area having a bending area, a first touch sensitive element which overlaps the active area of the display panel and includes a first electroactive layer, a bending member which is disposed below the display panel and overlaps at least the bending area, and a second touch sensitive element including a second electroactive layer which covers the bending member. Therefore, in the bending area where the stress due to the bending is concentrated, the lifespan and the driving stability of the first touch sensitive element and the second touch sensitive element may be improved.
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公开(公告)号：US10674281B2
公开(公告)日：2020-06-02
申请号：US16029209
申请日：2018-07-06
Applicant: LG DISPLAY CO., LTD.
Inventor： Taeheon Kim , Chiwan Kim , Sung-Eui Shin , YongWoo Lee , Kyungyeol Ryu , YuSeon Kho
Abstract: Discussed are a film speaker and a display device. The film speaker includes an electroactive layer including a first surface and a second surface opposite to the first surface, and further including a plurality of concave portions; and a first electrode and a second electrode disposed on at least one of the first surface and the second surface. Therefore, the sound generated in the film speaker may be further amplified and the sound pressure level may be improved.
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公开(公告)号：US20190079630A1
公开(公告)日：2019-03-14
申请号：US16130770
申请日：2018-09-13
Applicant: LG Display Co., Ltd.
Inventor： YuSeon Kho , Chiwan Kim , Taeheon Kim , Sung-Eui Shin , YongWoo Lee , Kyungyeol Ryu
Abstract: A display device to an embodiment of the present disclosure comprises a display panel including an active area having a bending area, a first touch sensitive element which overlaps the active area of the display panel and includes a first electroactive layer, a bending member which is disposed below the display panel and overlaps at least the bending area, and a second touch sensitive element including a second electroactive layer which covers the bending member. Therefore, in the bending area where the stress due to the bending is concentrated, the lifespan and the driving stability of the first touch sensitive element and the second touch sensitive element may be improved.
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公开(公告)号：US12069953B2
公开(公告)日：2024-08-20
申请号：US18242508
申请日：2023-09-05
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.
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