公开(公告)号：US10168781B2

公开(公告)日：2019-01-01

申请号：US15392401

申请日：2016-12-28

Applicant: LG Display Co., Ltd.

Inventor： Taeheon Kim ,  Yong-Su Ham ,  YongWoo Lee ,  YuSeon Kho ,  MyungJin Lim ,  Seulgi Choi

IPC: G06F3/01 ,  G06F3/041 ,  H01L41/22 ,  H01L27/32 ,  B32B27/30 ,  G02F1/1333

Abstract: Provided are a touch sensitive device and a display device including the same. The touch sensitive device includes: a first electroactive layer formed of a ferroelectric polymer; a plurality of electrodes disposed on at least one surface of the first electroactive layer; and a second electroactive layer in contact with the plurality of electrodes and the first electroactive layer and formed of an electroactive polymer. A coating layer having a low refractive index and formed of an electroactive polymer is formed on the first electroactive layer formed of a ferroelectric polymer having a low light transmittance, and, thus, a vibration level and a light transmittance of the touch sensitive device can be improved simultaneously.

公开(公告)号：US09727157B2

公开(公告)日：2017-08-08

申请号：US14970154

申请日：2015-12-15

Applicant: LG DISPLAY CO., LTD.

Inventor： Yong-Su Ham ,  SuSeok Choi ,  Taeheon Kim ,  YongWoo Lee ,  MyungJin Lim ,  Seulgi Choi

IPC: G06F3/041 ,  G06F3/047 ,  G06F3/01

CPC classification number: G06F3/0412 ,  G06F3/016 ,  G06F3/0416 ,  G06F3/047 ,  G06F2203/04102 ,  G06F2203/04107

Abstract: A touch sensitive device, a display device including the touch sensitive device and a method of driving the same are discussed. The touch sensitive device can include an electroactive layer including an electroactive polymer; and one or more first electrodes and one or more second electrodes are disposed on only one surface of the electroactive layer, in which the first and the second electrodes include a conductive material. The first and the second electrodes of the touch sensitive device can be disposed only on one surface of the electroactive layer, a driving voltage of the touch sensitive device can be reduced and transmissivity can be improved.

公开(公告)号：US20160188119A1

公开(公告)日：2016-06-30

申请号：US14979952

申请日：2015-12-28

Applicant: LG Display Co., Ltd

Inventor： Yong-Su Ham ,  SuSeok Choi ,  Taeheon Kim ,  YongWoo Lee ,  MyungJin Lim ,  Seulgi Choi

IPC: G06F3/042 ,  G06F3/041

CPC classification number: G06F3/044 ,  G02B5/3083 ,  G02F1/0131 ,  G06F3/016 ,  G06F2203/04107 ,  H01L27/323 ,  H01L41/1132 ,  H01L41/193 ,  H01L41/47 ,  H01L51/5281

Abstract: Provided is a display device. The display device includes a display panel, a contact sensitive device on the display panel, and a linear polarizer on the contact sensitive device. The contact sensitive device includes an electro-active layer which is uniaxially elongated and configured to retard a phase of incident light. Since the display device includes the contact sensitive device having the electro-active layer configured to retard the phase of the incident light, a separate phase retardation film for suppressing external light reflection may be omitted. As a result, the thickness of the display device may be decreased and manufacturing cost of the display device may be reduced.

Abstract translation: 提供了一种显示装置。 显示装置包括显示面板，显示面板上的接触敏感装置以及接触敏感装置上的线性偏振器。 所述接触敏感装置包括单轴拉伸并被配置为延迟入射光相位的电活性层。 由于显示装置包括具有延迟入射光的相位的电活性层的接触敏感装置，因此可以省略用于抑制外部光反射的单独的相位延迟膜。 结果，显示装置的厚度可能降低，并且显示装置的制造成本可能降低。

公开(公告)号：US10963052B2

公开(公告)日：2021-03-30

申请号：US15798151

申请日：2017-10-30

Applicant: LG Display Co., Ltd.

Inventor： Seulgi Choi ,  Yong-Su Ham ,  Taeheon Kim ,  YongWoo Lee ,  Kyungyeol Ryu ,  YuSeon Kho ,  MyungJin Lim

IPC: G06F3/01 ,  G06F3/041 ,  G06F3/044 ,  G02F1/1333

Abstract: Provided are a touch sensitive element and a display device including the same. According to the exemplary embodiment of the present disclosure, a touch sensitive element, includes: an electroactive layer which is formed of electroactive polymer (EAP); an electrode which is disposed on at least one surface of the electroactive layer; and a hard coating layer which is disposed on the electroactive layer and the electrode and has a negative coefficient of thermal expansion (CTE). Therefore, vibration effect in a vertical direction is maximized and impact resistance may be improved.

公开(公告)号：US10444891B2

公开(公告)日：2019-10-15

申请号：US14757438

申请日：2015-12-23

Applicant: LG DISPLAY CO., LTD.

Inventor： Yong-Su Ham ,  SuSeok Choi ,  Taeheon Kim ,  YongWoo Lee ,  MyungJin Lim ,  Seulgi Choi

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/1333

Abstract: Provided is a touch panel. The touch panel includes a first substrate, a second substrate, a first electrode, a second electrode, a third electrode, and a dielectric layer. The second substrate faces the first substrate. The first electrode is on one surface of the first substrate. The second electrode is spaced apart from the first electrode on a same plane as the first electrode. The third electrode is on one surface of the second substrate and overlaps the first electrode and the second electrode. The dielectric layer is between the first electrode and the third electrode and between the second electrode and the third electrode and includes an anisotropic dielectric material.

公开(公告)号：US10409408B2

公开(公告)日：2019-09-10

申请号：US15824646

申请日：2017-11-28

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyungyeol Ryu ,  Yong-Su Ham ,  Taeheon Kim ,  YongWoo Lee ,  YuSeon Kho ,  MyungJin Lim ,  Seulgi Choi

IPC: C08L41/00 ,  G06F3/041 ,  H01L41/18 ,  C09D127/16 ,  C08F20/38 ,  H01L41/113 ,  H01L41/193 ,  C08F220/38

Abstract: The present disclosure relates to a touch sensitive element and a display device including the same. According to an exemplary embodiment of the present disclosure, the touch sensitive element includes an electroactive film which is formed of a fluorine based terpolymer and a polymer represented by Chemical Formula 1, wherein R is an ethyl group or a methyl group, and n is an integer of 1 or larger.

公开(公告)号：US09812664B2

公开(公告)日：2017-11-07

申请号：US14962569

申请日：2015-12-08

Applicant: LG DISPLAY CO., LTD.

Inventor： Seulgi Choi ,  Suseok Choi ,  Yongsu Ham ,  Taeheon Kim ,  Yongwoo Lee ,  Myungjin Lim

IPC: G06F1/16 ,  H01L51/52 ,  G06F3/041 ,  H01L51/56 ,  H01L27/32 ,  H01L41/047 ,  H01L41/29 ,  H01L41/09 ,  H01L41/193

CPC classification number: H01L51/5225 ,  G06F1/1652 ,  G06F3/0412 ,  G06F2203/04102 ,  G06F2203/04103 ,  G09G2380/02 ,  H01L27/323 ,  H01L41/047 ,  H01L41/0926 ,  H01L41/193 ,  H01L41/29 ,  H01L51/5209 ,  H01L51/56 ,  H01L2251/5338

Abstract: A transformable device is provided. The transformable device includes an electro-active layer. A first electrode is disposed at a lower portion inside the electro-active layer. A second electrode is disposed at an upper portion inside the electro-active layer. In the transformable device according to an embodiment of the present disclosure, performance of the electrodes is suppressed from decreasing in spite of repeated operating and a life of the transformable device can be increased as compared with a case of forming electrodes outside an electro-active layer.