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公开(公告)号:US20210400396A1
公开(公告)日:2021-12-23
申请号:US17464660
申请日:2021-09-01
Applicant: LG Display Co., Ltd.
Inventor: YongGyoon JANG , Chiwan KIM , Taeheon KIM , Sung-Eui SHIN , YongWoo LEE , Kyungyeol RYU , YuSeon KHO
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.
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公开(公告)号:US20210400394A1
公开(公告)日:2021-12-23
申请号:US17463546
申请日:2021-08-31
Applicant: LG Display Co., Ltd.
Inventor: Chiwan KIM , Kyungyeol RYU , YuSeon KHO , YongGyoon JANG
Abstract: A display apparatus includes: a display panel configured to display an image, and at least one vibration module on a rear surface of the display panel, the at least one vibration module including a piezoelectric composite layer including a plurality of sub-modules configured to vibrate the display panel, each of the plurality of sub-modules including: a plurality of first portions including a piezoelectric characteristic, and a plurality of second portions having flexibility, each of the plurality of second portions being between a respective pair of the plurality first portions, wherein the plurality of first portions in the respective sub-modules are arranged in a same direction or are partially arranged in different directions.
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公开(公告)号:US20210325968A1
公开(公告)日:2021-10-21
申请号:US17359243
申请日:2021-06-25
Applicant: LG Display Co., Ltd.
Inventor: Chiwan KIM , Taeheon KIM , Sung-Eui SHIN , YongWoo LEE , Kyungyeol Ryu , YuSeon KHO , YongGyoon JANG
IPC: G06F3/01 , H01L27/32 , G02F1/1368 , G02F1/1333 , G06F3/041 , B60K37/04 , B06B1/06
Abstract: The present disclosure relates to a vibration generation device, a display apparatus including the vibration generation device, and a vehicle including the vibration generation device. A vibration generation device includes a piezoelectric ceramic part having a certain interval, a piezoelectric material layer between the piezoelectric ceramic parts, and an electrode part configured to provide electric field to one or more of the piezoelectric ceramic part and the piezoelectric material layer.
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公开(公告)号:US20210168479A1
公开(公告)日:2021-06-03
申请号:US17177058
申请日:2021-02-16
Applicant: LG Display Co., Ltd.
Inventor: Taeheon KIM , Chiwan KIM , Sung-Eui SHIN , YongWoo LEE , Kyungyeol Ryu , YuSeon KHO , YongGyoon JANG
IPC: H04R1/02 , H01L41/053 , H01L41/193 , H04R17/00 , H01L41/09 , H01L27/20
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:US20200381613A1
公开(公告)日:2020-12-03
申请号:US16886150
申请日:2020-05-28
Inventor: Taeheon KIM , Sahn Nahm , YongGyoon JANG , Jonghyun KIM , Ku-Tak LEE , Chiwan KIM , Sung-Eui SHIN , YongWoo LEE , Seok-June Chae
IPC: H01L41/187 , G06F3/041 , G06F3/01 , G06F1/16 , 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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公开(公告)号:US20200314557A1
公开(公告)日:2020-10-01
申请号:US16447353
申请日:2019-06-20
Applicant: LG Display Co., Ltd.
Inventor: Kyungyeol RYU , Chiwan KIM , YuSeon KHO , YongGyoon JANG
IPC: H04R17/00 , H01L41/047 , H01L41/08 , H01L41/09 , H01L41/37 , H01L41/083 , H04R7/02 , B06B1/06
Abstract: A display apparatus includes a display module having a display panel configured to display an image, a sound generation module disposed at the display module and configured to vibrate the display module to generate sound, a first cover configured to cover a first periphery portion of the display module, and a plurality of ultrasonic generation modules disposed between the first periphery portion of the display module and the first cover. The first cover includes a plurality of first holes overlapping with the plurality of ultrasonic generation modules.
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公开(公告)号:US20230422625A1
公开(公告)日:2023-12-28
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 , G06F3/041 , G10K9/122 , G06F1/16 , G06F3/01
CPC classification number: H10N30/8542 , G06F3/0412 , G06F3/016 , G06F1/1605 , 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:US20230199357A1
公开(公告)日:2023-06-22
申请号:US18105198
申请日:2023-02-02
Applicant: LG Display Co., Ltd.
Inventor: YongGyoon JANG , Yong-Su HAM , YongWoo LEE , Kyungyeol RYU
CPC classification number: H04R1/028 , G06F3/016 , G08B6/00 , H01L25/167 , H10K50/8426 , H10N30/20 , H10N30/1051 , H04R2400/03 , H04R2499/15
Abstract: Display panel and display apparatus including the same. A display panel includes a first substrate including a display portion configured to display an image, a second substrate attached to the first substrate by an adhesive member, and a vibration generating module within the adhesive member to overlap the display portion. The vibration generating module is surrounded by the second substrate and the adhesive member.
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公开(公告)号:US20220406989A1
公开(公告)日:2022-12-22
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: H01L41/187 , G06F3/041 , G10K9/122 , G06F1/16 , G06F3/01
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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公开(公告)号:US20210337292A1
公开(公告)日:2021-10-28
申请号:US17370954
申请日:2021-07-08
Applicant: LG Display Co., Ltd.
Inventor: YongGyoon JANG , Yong-Su HAM , YongWoo LEE , Kyungyeol RYU
Abstract: Display panel and display apparatus including the same. A display panel includes a first substrate including a display portion configured to display an image, a second substrate attached to the first substrate by an adhesive member, and a vibration generating module within the adhesive member to overlap the display portion. The vibration generating module is surrounded by the second substrate and the adhesive member.
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