公开(公告)号：US12284482B2

公开(公告)日：2025-04-22

申请号：US17966539

申请日：2022-10-14

Applicant: LG Display Co., Ltd.

Inventor： Minji Kim ,  SeungRyull Park ,  Chiwan Kim ,  Yong-Su Ham ,  Uihyeon Jeong

IPC: H04R17/00 ,  B06B1/06 ,  H10N30/20 ,  H10N30/50

Abstract: A vibration apparatus can include a first cover member; a second cover member; a vibration portion between the first cover member and the second cover member; a contact portion between the first cover member and the vibration portion; and a signal cable. The signal cable can include a first signal line connected to a first surface of the vibration portion via the contact portion, and a second signal line connected to a second surface of the vibration portion opposite to the first surface of the vibration portion.

公开(公告)号：US12101600B2

公开(公告)日：2024-09-24

申请号：US17845444

申请日：2022-06-21

Applicant: LG Display Co., Ltd.

Inventor： Sungwook Ko ,  Kyungyeol Ryu ,  Taehyung Kim ,  MinHo Sohn ,  SeulKi Nam ,  Jeonggoo Kang ,  JunSeok Oh ,  SeungRyull Park ,  Chiwan Kim ,  GyungBo Ha ,  Uihyeon Jeong

IPC: H04R17/00 ,  H04R1/28 ,  H10N30/00 ,  H10N30/20

CPC classification number: H04R17/00 ,  H04R1/2803 ,  H10N30/20 ,  H10N30/708 ,  H04R2430/00 ,  H04R2499/13

Abstract: A vibration apparatus may include a vibration device and an adhesive member at a surface of the vibration device. A modulus of the vibration device may be equal to a modulus of the adhesive member or may be greater than the modulus of the adhesive member.

公开(公告)号：US11832056B2

公开(公告)日：2023-11-28

申请号：US17554712

申请日：2021-12-17

Applicant: LG Display Co., Ltd.

Inventor： Sungwook Ko ,  Minji Kim ,  SeungRyull Park

IPC: H04R17/00 ,  H10N30/85

CPC classification number: H04R17/00 ,  H10N30/852 ,  H04R2499/13 ,  H04R2499/15

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.

公开(公告)号：US09766501B2

公开(公告)日：2017-09-19

申请号：US14307237

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: 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.

公开(公告)号：US20140368779A1

公开(公告)日：2014-12-18

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

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.

Abstract translation: 提供了根据本发明的实施例的制造新型液晶显示装置的方法。 首先，在基板上形成取向膜。 将取向膜分为使用含有光分解物质的液态聚酰亚胺作为前体而形成的第一取向膜和使用不含光分解物质的聚酰胺酸作为前体而形成的第二取向膜。 紫外光照射到取向膜上，通过至少两步去除工艺除去由UV光照射形成的分解物质。 通过制造根据本发明的示例性实施例的液晶显示装置的方法，亮点最小化并且黑色的亮度降低，从而可以实现具有高对比度的液晶显示装置。

公开(公告)号：US20140368775A1

公开(公告)日：2014-12-18

申请号：US14307237

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: G02F1/1343 ,  G02F1/1337 ,  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.

Abstract translation: 用于液晶显示装置的取向膜包括朝向液晶层定位的第一部分和远离液晶层的第二部分。 第一部分提供改进的锚固力，而第二部分表现出比第一部分更低的体积电阻。 因此，AC图像粘贴和DC图像粘贴可以同时最小化。