公开(公告)号：US10228600B2

公开(公告)日：2019-03-12

申请号：US14754957

申请日：2015-06-30

Applicant: LG Display Co., Ltd.

Inventor： Ki Han Kim ,  Ji Young Ahn ,  Moon Sun Lee ,  Pu Reum Kim ,  Seok Won Ji

IPC: G02F1/1347 ,  C09K19/02 ,  C09K19/58 ,  C09K19/60 ,  H01L27/32 ,  G02F1/137 ,  G02F1/1339 ,  C09K19/54 ,  G02F1/1333

Abstract: A light controlling apparatus includes first and second substrates facing each other; a first electrode on the first substrate; a second electrode on the second substrate; and a liquid crystal layer between the first electrode and the second electrode, the liquid crystal layer including cholesteric liquid crystals, wherein the cholesteric liquid crystals have a focal conic state in a light shielding mode in case where no voltage is applied, and have a homeotropic state in a transparent mode in case where a voltage is applied.

公开(公告)号：US20160026026A1

公开(公告)日：2016-01-28

申请号：US14808157

申请日：2015-07-24

Applicant: LG Display Co., Ltd.

Inventor： Ki Han Kim ,  Ji Young Ahn ,  Moon Sun Lee ,  Pu Reum Kim ,  Seok Won Ji

IPC: G02F1/137 ,  G02F1/1334 ,  G02F1/1343 ,  G02F1/1339 ,  G02F1/1337 ,  G02F1/1347

CPC classification number: G02F1/13737 ,  G02F1/133377 ,  G02F1/1334 ,  G02F1/1337 ,  G02F1/13394 ,  G02F1/134363 ,  G02F1/13475 ,  G02F1/13718 ,  G02F1/13725 ,  G02F2001/13345 ,  G02F2001/133742 ,  G02F2001/134372 ,  G02F2001/134381 ,  G02F2201/44 ,  G02F2203/01

Abstract: A light controlling apparatus includes a first electrode on a first substrate; a first alignment film on the first electrode; a second electrode on a second substrate facing the first substrate; a second alignment film on the second electrode; and a guest-host liquid crystal layer having cholesteric liquid crystals and dichroic dyes between the first and second alignment films. The first and second electrodes provide a vertical electric field, and at least one of the first and second electrodes provides a horizontal electric field. The cholesteric liquid crystals have a homeotropic state when an electric field in a first direction is applied to the guest-host liquid crystal layer to realize a transparent mode. The cholesteric liquid crystals have a focal conic state when an electric field in a second direction is applied to realize a light shielding mode. A same state is maintained when no electric field is applied.

Abstract translation: 光控制装置包括在第一基板上的第一电极; 第一电极上的第一取向膜; 位于第二基板上的面向第一基板的第二电极; 在第二电极上的第二取向膜; 以及在第一和第二取向膜之间具有胆甾型液晶和二色性染料的客体主体液晶层。 第一和第二电极提供垂直电场，并且第一和第二电极中的至少一个提供水平电场。 当将第一方向的电场施加到客体主体液晶层以实现透明模式时，胆甾型液晶具有垂直状态。 当施加第二方向的电场以实现遮光模式时，胆甾型液晶具有焦点锥形状态。 当没有施加电场时，保持相同的状态。

公开(公告)号：US09971222B2

公开(公告)日：2018-05-15

申请号：US14808157

申请日：2015-07-24

Applicant: LG Display Co., Ltd.

Inventor： Ki Han Kim ,  Ji Young Ahn ,  Moon Sun Lee ,  Pu Reum Kim ,  Seok Won Ji

IPC: G02F1/1337 ,  G02F1/137 ,  G02F1/1347 ,  G02F1/1343 ,  G02F1/1339 ,  G02F1/1334 ,  G02F1/1333

CPC classification number: G02F1/13737 ,  G02F1/133377 ,  G02F1/1334 ,  G02F1/1337 ,  G02F1/13394 ,  G02F1/134363 ,  G02F1/13475 ,  G02F1/13718 ,  G02F1/13725 ,  G02F2001/13345 ,  G02F2001/133742 ,  G02F2001/134372 ,  G02F2001/134381 ,  G02F2201/44 ,  G02F2203/01

Abstract: A light controlling apparatus includes a first electrode on a first substrate; a first alignment film on the first electrode; a second electrode on a second substrate facing the first substrate; a second alignment film on the second electrode; and a guest-host liquid crystal layer having cholesteric liquid crystals and dichroic dyes between the first and second alignment films. The first and second electrodes provide a vertical electric field, and at least one of the first and second electrodes provides a horizontal electric field. The cholesteric liquid crystals have a homeotropic state when an electric field in a first direction is applied to the guest-host liquid crystal layer to realize a transparent mode. The cholesteric liquid crystals have a focal conic state when an electric field in a second direction is applied to realize a light shielding mode. A same state is maintained when no electric field is applied.

公开(公告)号：US20150378205A1

公开(公告)日：2015-12-31

申请号：US14754957

申请日：2015-06-30

Applicant: LG Display Co., Ltd.

Inventor： Ki Han Kim ,  Ji Young Ahn ,  Moon Sun Lee ,  Pu Reum Kim ,  Seok Won Ji

IPC: G02F1/137 ,  G02F1/1339

CPC classification number: G02F1/13718 ,  C09K19/02 ,  C09K19/544 ,  C09K19/586 ,  C09K19/60 ,  C09K2019/546 ,  G02F1/133377 ,  G02F1/1339 ,  G02F1/13475 ,  G02F1/13476 ,  G02F1/13725 ,  G02F1/13737 ,  G02F2001/13756 ,  G02F2001/13775 ,  G02F2201/44 ,  G02F2202/04 ,  G02F2203/01 ,  G02F2203/03 ,  G02F2203/64 ,  H01L27/3232 ,  H01L2251/5323

Abstract: A light controlling apparatus includes first and second substrates facing each other; a first electrode on the first substrate; a second electrode on the second substrate; and a liquid crystal layer between the first electrode and the second electrode, the liquid crystal layer including cholesteric liquid crystals, wherein the cholesteric liquid crystals have a focal conic state in a light shielding mode in case where no voltage is applied, and have a homeotropic state in a transparent mode in case where a voltage is applied.

Abstract translation: 光控制装置包括彼此面对的第一和第二基板; 第一基板上的第一电极; 第二基板上的第二电极; 以及在第一电极和第二电极之间的液晶层，液晶层包括胆甾型液晶，其中胆甾型液晶在没有施加电压的情况下具有遮光模式的焦点锥形状态，并且具有垂直的 在施加电压的情况下以透明模式状态。