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公开(公告)号：US20200154214A1
公开(公告)日：2020-05-14
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
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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32.发明申请公开(公告)号：US20180164889A1
公开(公告)日：2018-06-14
申请号：US15822740
申请日：2017-11-27
Applicant: LG DISPLAY CO., LTD.
Inventor： Yong-Su HAM , Taeheon KIM , YongWoo LEE , Kyungyeol RYU , YuSeon KHO , MyungJin LIM
IPC: G06F3/01 , G06F3/0488 , H01L41/083 , H01L41/253 , H01L41/27
Abstract: Provided are a touch sensitive element and a manufacturing method thereof. The manufacturing method for the touch sensitive element according to an embodiment of the present disclosure includes forming an electroactive polymer coating layer by applying an electroactive polymer solution on a substrate; forming an electroactive layer by heating and pressurizing the electroactive polymer coating layer using a hot press roller; and forming an electrode on the electroactive layer.
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33.发明申请公开(公告)号：US20170192595A1
公开(公告)日：2017-07-06
申请号：US15394395
申请日：2016-12-29
Applicant: LG DISPLAY CO., LTD.
Inventor： Seulgi CHOI , Yong-Su HAM , Taeheon KIM , YongWoo LEE , YuSeon KHO , MyungJin LIM
IPC: G06F3/041
CPC classification number: G06F3/0416 , C08J9/26 , C08J2201/0464 , C08J2353/00 , G06F3/016 , G06F3/041 , G06F2203/04103 , H01L41/0477 , H01L41/09 , H01L41/1132 , H01L41/193 , H01L41/253 , H01L41/45
Abstract: Provided are a contact sensitive device, a display apparatus including the same, and a method of manufacturing the same. The contact sensitive device includes an electroactive layer formed of an electroactive polymer having a plurality of nano pores and an electrode disposed on at least one surface of the electroactive layer. The electroactive layer has a β-phase structure and improved piezoelectricity without performing a stretching process or a polling process.
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公开(公告)号：US20240260475A1
公开(公告)日：2024-08-01
申请号：US18523351
申请日：2023-11-29
Applicant: LG Display Co., Ltd.
Inventor： YuSeon KHO , Wansoo LEE , Chiwan KIM , Sung-Eui SHIN , Minji KIM , Sungwook KO , Saewon KANG
IPC: H10N30/20 , H10N30/03 , H10N30/071 , H10N30/098 , H10N30/87
CPC classification number: H10N30/20 , H10N30/03 , H10N30/071 , H10N30/098 , H10N30/875
Abstract: Aspects of the present disclosure is directed to a vibration apparatus and an apparatus including the same, having directivity. In one example, a vibration apparatus includes a vibration part; a first electrode at a first surface of the vibration part; and a second electrode at a second surface different from the first surface of the vibration part, wherein the vibration part includes a piezoelectric portion and a supporting portion connected to the piezoelectric portion, and wherein a height of the supporting portion differs from a height of the piezoelectric portion.
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公开(公告)号：US20240260309A1
公开(公告)日：2024-08-01
申请号：US18633501
申请日：2024-04-11
Applicant: LG Display Co., Ltd.
Inventor： YuSeon KHO , Yong-Su HAM , YongWoo LEE
IPC: H10K59/00 , G06F3/01 , H10K50/842 , H10N30/20
CPC classification number: H10K59/00 , G06F3/016 , H10K50/8426 , H10N30/204
Abstract: A display apparatus includes a display panel configured to display an image and a film actuator configured to vibrate the display panel. The film actuator may include a plurality of vibration generating devices configured with a composite film. The plurality of vibration generating devices may be configured to have different expansion coefficients from each other.
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Patent Agency Ranking
公开(公告)号：US20240064472A1
公开(公告)日：2024-02-22
申请号：US18386246
申请日：2023-11-01
Applicant: LG Display Co., Ltd.
Inventor： YuSeon KHO , Yong-Su HAM , YongWoo LEE
CPC classification number: H04R17/00 , B60Q9/00 , H04R1/025 , H04R2499/13
Abstract: 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.
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公开(公告)号：US20230336922A1
公开(公告)日：2023-10-19
申请号：US18213648
申请日：2023-06-23
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
CPC classification number: H04R17/00 , H04R1/028 , H04R1/288 , H04R3/12 , G08B6/00 , H04R1/403 , H04R2499/15
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：US20230217186A1
公开(公告)日：2023-07-06
申请号：US17982025
申请日：2022-11-07
Applicant: LG Display Co., Ltd.
Inventor： YuSeon KHO , Sooyoun KIM
IPC: H04R17/00
CPC classification number: H04R17/00 , H04R2499/13 , H04R2499/15
Abstract: An apparatus includes a vibration member, a housing at a rear surface of the vibration member, a connection member between the vibration member and the housing, and a vibration apparatus configured to vibrate the vibration member, the vibration member includes at least one flat portion and at least one flexural portion adjacent to the at least one flat portion.
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公开(公告)号：US20220360907A1
公开(公告)日：2022-11-10
申请号：US17871842
申请日：2022-07-22
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：US20220201400A1
公开(公告)日：2022-06-23
申请号：US17542063
申请日：2021-12-03
Applicant: LG Display Co., Ltd.
Inventor： YuSeon KHO , Yong-Su HAM , YongWoo LEE
Abstract: A sound-generating apparatus and a vehicle including the same are provided. A sound-generating apparatus includes: a plurality of first portions at each of first to third regions, and a plurality of second portions between the plurality of first portions, at each of the first to third regions, wherein two or more second portions, at any one region, among the first to third regions, have a cross-sectional shape that differs from a cross-sectional shape of a second portion disposed at each of the other regions, among the first to third regions.
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