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公开(公告)号：US08669130B2
公开(公告)日：2014-03-11
申请号：US13668071
申请日：2012-11-02
Applicant: LG Display Co., Ltd.
Inventor： KyoungJin Nam , SeungRyull Park , KyungMo Son , JiHye Lee
IPC: H01L21/00
CPC classification number: G02F1/134363 , G02F1/136227 , G02F2001/133357 , G02F2001/134372 , G02F2201/50 , G02F2202/022 , H01L27/124 , H01L27/1248 , H01L27/1259
Abstract: A fringe field switching (FFS) liquid crystal display (LCD) device which uses an organic insulating layer and consumes less power, in which film quality of an upper layer of a low temperature protective film is changed to improve undercut within a pad portion contact hole, and a method for fabricating the same is provided.
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公开(公告)号：US10082705B2
公开(公告)日：2018-09-25
申请号：US15813029
申请日：2017-11-14
Applicant: LG Display Co., Ltd.
Inventor： SeungRyull Park , HyunJin Park , JinPil Kim , Han Jin Ahn , Hanseok Lee , Su-Bin Lee
IPC: G02F1/1337 , G02F1/1343 , G02F1/137
CPC classification number: G02F1/133788 , G02F1/133723 , G02F1/134363 , G02F2001/134372 , G02F2001/13712 , Y10T428/1018 , Y10T428/1023
Abstract: Provided is a method of manufacturing new liquid crystal display device according to an embodiment of the present invention. Firstly, an alignment film is formed on a substrate. The alignment film is divided into a first alignment film formed using, as a precursor, liquid-state polyimide that contains a photodecomposition substance and a second alignment film formed using, as a precursor, a polyamic acid that does not contain a photodecomposition substance. UV light is irradiated to the alignment film, and decomposed substances formed by irradiation of the UV light is removed by an at least two-step removing process. By the method of manufacturing a liquid crystal display device according to the exemplary embodiment of the present disclosure, bright spots are minimized in pixels and a brightness of black is lowered, so that a liquid crystal display device with a high contrast ratio can be realized.
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公开(公告)号：US10073302B2
公开(公告)日：2018-09-11
申请号：US15681213
申请日：2017-08-18
Applicant: LG Display Co., Ltd.
Inventor： SeungRyull Park , HyunJin Park , JinPil Kim , Han Jin Ahn , Hanseok Lee , Su-Bin Lee
IPC: G02F1/1337 , G02F1/1343 , G02F1/137
CPC classification number: G02F1/133788 , G02F1/133723 , G02F1/134363 , G02F2001/134372 , G02F2001/13712 , Y10T428/1018 , Y10T428/1023
Abstract: An alignment film for liquid crystal display device includes a first portion positioned towards to the liquid crystal layer and a second portion positioned away from the liquid crystal layer. The first portion provides improved anchoring force while the second portion exhibits a lower volume resistance than the first portion. Thus, AC image sticking and DC image sticking can be minimized at the same time.
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公开(公告)号：US12155995B2
公开(公告)日：2024-11-26
申请号：US18381152
申请日：2023-10-17
Applicant: LG Display Co., Ltd.
Inventor： Sungwook Ko , Minji Kim , SeungRyull Park
Abstract: A disclosed vibration device comprises a first vibration generator and a first connection member disposed on a first surface of the first vibration generator. The first vibration generator may comprise a first vibration part including a plurality of inorganic material portions having a piezoelectric characteristic and an organic material portion between the plurality of inorganic material portions.
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公开(公告)号：US11678124B2
公开(公告)日：2023-06-13
申请号：US17532487
申请日：2021-11-22
Applicant: LG Display Co., Ltd.
Inventor： Minji Kim , Sungwook Ko , Seunghyun Sung , SeungRyull Park , YoungWook Ha
CPC classification number: H04R17/00 , H04R1/028 , H04R2499/15
Abstract: Discussed is an apparatus including a display panel configured to display an image, a vibration apparatus disposed at a rear surface of the display panel to vibrate the display panel and to generate sound via the display panel, and an adhesive member and a connection member between the display panel and the vibration apparatus.
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Patent Agency Ranking
公开(公告)号：US09846332B2
公开(公告)日：2017-12-19
申请号：US14307280
申请日：2014-06-17
Applicant: LG Display Co., Ltd.
Inventor： SeungRyull Park , HyunJin Park , JinPil Kim , Han Jin Ahn , Hanseok Lee , Su-Bin Lee
IPC: G02F1/1337 , G02F1/1343 , G02F1/137
CPC classification number: G02F1/133788 , G02F1/133723 , G02F1/134363 , G02F2001/134372 , G02F2001/13712 , Y10T428/1018 , Y10T428/1023
Abstract: Provided is a method of manufacturing new liquid crystal display device according to an embodiment of the present invention. Firstly, an alignment film is formed on a substrate. The alignment film is divided into a first alignment film formed using, as a precursor, liquid-state polyimide that contains a photodecomposition substance and a second alignment film formed using, as a precursor, a polyamic acid that does not contain a photodecomposition substance. UV light is irradiated to the alignment film, and decomposed substances formed by irradiation of the UV light is removed by an at least two-step removing process. By the method of manufacturing a liquid crystal display device according to the exemplary embodiment of the present disclosure, bright spots are minimized in pixels and a brightness of black is lowered, so that a liquid crystal display device with a high contrast ratio can be realized.
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公开(公告)号：US12267644B2
公开(公告)日：2025-04-01
申请号：US17977378
申请日：2022-10-31
Applicant: LG Display Co., Ltd.
Inventor： YoungWook Ha , Chiwan Kim , SeungRyull Park , SangWoo Jin
Abstract: An apparatus can include a display member configured to display an image, a vibration apparatus disposed at a rear surface of the display member, a supporting frame disposed at a rear surface of the vibration apparatus, and an adhesive member disposed between the supporting frame and the rear surface of the display member. In addition, the adhesive member and/or supporting frame is spaced apart from the vibration apparatus, and the vibration apparatus is configured to vibrate in a direction toward the display member.
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公开(公告)号：US12223112B2
公开(公告)日：2025-02-11
申请号：US18381922
申请日：2023-10-19
Applicant: LG Display Co., Ltd.
Inventor： Saewon Kang , SeungRyull Park , YuSeon Kho
Abstract: A display apparatus is provided, and the display apparatus includes a display member having a plurality of pixels configured to display an image, and a vibration apparatus configured to vibrate the display member based on a haptic driving signal. The haptic driving signal includes a texture signal and an ultrasonic signal. Accordingly, the display apparatus can provide a user with a tactile feedback including a virtual texture.
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公开(公告)号：US11910158B2
公开(公告)日：2024-02-20
申请号：US17555091
申请日：2021-12-17
Applicant: LG Display Co., Ltd.
Inventor： YoungWook Ha , SeungRyull Park , Chiwan Kim , Sungwook Ko
CPC classification number: H04R17/00 , H10N30/852 , H10N30/877 , H10N30/883 , H04R2499/13 , H04R2499/15
Abstract: A vibration device can include a vibration portion; a first electrode portion disposed on a first surface of the vibration portion; and a second electrode portion disposed on a second surface of the vibration portion, in which each of the first and second electrode portions include at least one of a conductive metal particle and a carbon particle.
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10.发明授权公开(公告)号：US08803153B2
公开(公告)日：2014-08-12
申请号：US14160380
申请日：2014-01-21
Applicant: LG Display Co., Ltd.
Inventor： KyoungJin Nam , SeungRyull Park , KyungMo Son , JiHye Lee
IPC: H01L29/04 , H01L31/036 , H01L31/0376 , H01L31/20
CPC classification number: G02F1/134363 , G02F1/136227 , G02F2001/133357 , G02F2001/134372 , G02F2201/50 , G02F2202/022 , H01L27/124 , H01L27/1248 , H01L27/1259
Abstract: A fringe field switching (FFS) liquid crystal display (LCD) device which uses an organic insulating layer and consumes less power, in which film quality of an upper layer of a low temperature protective film is changed to improve undercut within a pad portion contact hole, and a method for fabricating the same is provided.
Abstract translation: 使用有机绝缘层并消耗较少功率的边缘场切换（FFS）液晶显示（LCD）装置，其中改变低温保护膜的上层的膜质量以改善焊盘部分接触孔内的底切 ，并提供其制造方法。
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