公开(公告)号：WO2023039360A1

公开(公告)日：2023-03-16

申请号：PCT/US2022/075922

申请日：2022-09-02

Applicant: LC-TEC DISPLAYS AB

Inventor： OSTERMAN, Jesper ,  VIGANDER, Alexander ,  SCHEFFER, Terry, J.

IPC: G02F1/15 ,  G02F1/1335 ,  G02F1/137 ,  G02F1/139 ,  G02F1/13 ,  G02F1/1337 ,  G02F1/1347 ,  G02B5/02

Abstract: A variable light diffusing filter (100) for a camera (300) uses a liquid crystal device (102, 104, 172) in which the amount of diffusion can be readily controlled by varying the voltage (150) applied to the liquid crystal device.

公开(公告)号：WO2022270944A1

公开(公告)日：2022-12-29

申请号：PCT/KR2022/008950

申请日：2022-06-23

Applicant: 동우 화인켐 주식회사

Inventor： 김동휘 ,  김성수

IPC: G02F1/139 ,  G02B5/30 ,  G02B1/08 ,  G02F1/1335 ,  G02F1/13363

Abstract: 본 발명은, 제1 편광판; 상기 제 1 편광판의 일면 상에 형성되는, 제 1 투명 도전층; 상기 제 1 편광판과 대향하는 제2 편광판; 상기 제 2 편광판의 일면 상에 형성되고, 상기 제 1 투명 도전층과 대향하는 제 2 투명 도전층; 상기 제 1 투명 도전층 및 상기 제 2 투명 도전층 사이에 구비되는, 액정층을 포함하며, 상기 액정층은, TN (Twisted nematic) 모드로 구동되며, 상기 제1 투명 도전층 및 제2 투명 도전층 중 적어도 하나의 투명 도전층은, 상기 제 1 편광판 또는 상기 제 2 편광판과 직접 접촉하여 형성되며, 상기 제 1 편광판 및 상기 제 2 편광판 중 적어도 하나의 편광판은, 편광자 및 상기 편광자의 일면에 형성되는 제 1 광학 기능 필름을 포함하며, 상기 제 1 광학 기능 필름은, 면내 위상차(Rin)가 40nm 내지 100nm이고, 두께 방향 위상차(Rth)가 120nm 내지 210nm인, 투과율 가변 광학 적층체 및 이의 제조방법과, 이를 포함하는 스마트 윈도우, 이를 적용한 자동차 및 건물용 창호에 관한 것이다.

公开(公告)号：WO2022237416A1

公开(公告)日：2022-11-17

申请号：PCT/CN2022/085909

申请日：2022-04-08

Applicant: OPPO广东移动通信有限公司

Inventor： 谭森

IPC: G02F1/1335 ,  G02F1/139 ,  G02F1/133528 ,  G02F1/1391

Abstract: 一种偏光片、液晶显示模组及电子设备。偏光片(10)包括间隔设置的第一基材层(11)、第二基材层(12)以及位于第一基材层(11)与第二基材层(12)之间的融合层(13)：第一基材层(11)设有第一电极(111)，第二基材层(12)设有第二电极(121)，融合层(13)可被配置为第一电极(111)与第二电极(121)之间无脉冲信号时透光轴沿第一方向，还可被配置为第一电极(111)与第二电极(121)之间有脉冲信号时透光轴沿第二方向。融合层(13)包括双稳态电控液晶分子(131)和二向色性染料分子(132)。液晶显示模组(300)包括线偏光片(30)、波片(40)和偏光片(10)，其中波片(40)与线偏光片(30)平行间隔设置，偏光片(10)位于线偏光片(30)与波片(40)之间，用于降低液晶显示模组(300)息屏状态下的屏幕反射率。

公开(公告)号：WO2022197654A1

公开(公告)日：2022-09-22

申请号：PCT/US2022/020310

申请日：2022-03-15

Applicant: E INK CORPORATION

Inventor： O'KEEFFE, Donal Martin

IPC: G02F1/139 ,  G02B5/30 ,  E06B9/24 ,  G03B21/00

Abstract: Switchable light modulators, which may be films, including chambers filled with electro-optic media, such as electrophoretic media, wherein some chambers have a different volume of electro-optic media such that when the electro-optic media is switched between an "open" and "closed" state some regions of the light modulator having chambers of greater volume undergo a greater change in optical density than areas having chambers with smaller volumes. Such switchable light modulators are useful for incorporation into windshields, glasses, windows, lenses, or visors where it is desirable that only part of the viewing area is darkened. Because the design only requires two (typically light-transmissive) electrodes, operation is simplified and costs are reduced, as compared to individually-actuable pixel electrodes.

公开(公告)号：WO2022000691A1

公开(公告)日：2022-01-06

申请号：PCT/CN2020/106684

申请日：2020-08-04

Applicant: TCL华星光电技术有限公司

Inventor： 窦虎 ,  吴梓平 ,  俞刚

IPC: G02F1/1333 ,  G02F1/139

Abstract: 一种视角调整膜结构（100）及其制作方法、显示装置（80），视角调整膜结构（100）包括依次层叠设置的基体（101）、各向同性光学材料层（102）和液晶层（103），各向同性光学材料层（102）上设有凹槽（1021），液晶层（103）填充凹槽（1021），光线从液晶层（103）射入后经由各向同性光学材料层（102）射出；液晶层（103）中液晶分子（1031）的指向失根据外部施加电压或电场的改变而改变，以调整从各向同性光学材料层（102）射出的光线的视角。

公开(公告)号：WO2021232660A1

公开(公告)日：2021-11-25

申请号：PCT/CN2020/120431

申请日：2020-10-12

Applicant: 华东理工大学

Inventor： 朱为宏 ,  郑致刚 ,  李卉君 ,  胡宏龙

IPC: C09K9/02 ,  G02F1/1333 ,  G02F1/1337 ,  G02F1/139

Abstract: 本发明公开了一种具有多稳态且反射色连续可控的双重可擦式防伪新方法及光信息编码领域的应用。该方法和应用具有高热稳定性和强抗疲劳度的特点，其实现依赖于此处所公开的基于内源性手性位阻型烯桥的二芳基乙烯化合物与液晶组成的材料体系。其中基于内源性手性位阻型烯桥的二芳基乙烯具有如下结构特征：式（1o）。这种基于内源性手性位阻型烯桥的二芳基乙烯化合物与液晶组成的材料体系，加工简单、原料成本低、光谱色调节范围广、热稳定性及抗疲劳度优异，有望进一步广泛应用于具有良好热稳定性、强抗疲劳度的双重可擦式防伪及光信息编码领域。

公开(公告)号：WO2020157650A1

公开(公告)日：2020-08-06

申请号：PCT/IB2020/050649

申请日：2020-01-28

Applicant: LUMUS LTD.

Inventor： RONEN, Eitan

IPC: G02F1/13363 ,  G02F1/139

Abstract: An electronic display device and a birefringent element are obtained. The electronic display device has liquid crystal material deployed between two transparent electrodes. The electronic display device and the birefringent element each have respective polarization axes. The electronic display device and the birefringent element are deployed relative to each other such that the polarization axes of the electronic display device are rotationally offset from the polarization axes of the birefringent element by an offset amount in accordance with a predetermined direction of rotation. A compensation voltage that is proportional to the offset amount is determined. The compensation voltage is applied across the transparent electrodes to induce the liquid crystal material to assume an intermediate state. The electronic display device produces polarized image light waves having polarization in a polarization direction in accordance with the intermediate state assumed by the liquid crystal material and that compensates for the rotational offset.

公开(公告)号：WO2020120533A1

公开(公告)日：2020-06-18

申请号：PCT/EP2019/084566

申请日：2019-12-11

Applicant: MERCK PATENT GMBH

Inventor： JUNGE, Michael ,  BEYER, Andreas

IPC: G02F1/139 ,  G02F1/1337 ,  G02F1/13363 ,  E06B9/24

Abstract: A switchable window element (10) having a layer structure is proposed. The layer structure comprises a switchable layer (20), two polarizers and two optical retarders, wherein a first polarizer and a first optical retarder are arranged in an optical path (40) prior to the switchable layer (20) and a second polarizer and a second optical retarder are arranged in the optical path (40) after the switchable layer (20). Further, the switchable layer (20) is a vertically aligned liquid crystal layer comprising a liquid crystalline medium, wherein the product of the thickness d of the switchable layer (20) and the optical anisotropy Δn of the liquid crystalline medium is in the range of from 0.05 µm to 3.0 µm and the liquid crystalline medium has a clearing point of at least 70°C. Further aspects of the invention relate to the use of the switchable window element as window for a building or a vehicle.

公开(公告)号：WO2020071135A1

公开(公告)日：2020-04-09

申请号：PCT/JP2019/036706

申请日：2019-09-19

Applicant: DIC株式会社

Inventor： 木村　正臣 ,  谷口　士朗 ,  間宮　純一 ,  井ノ上　雄一 ,  林　正直 ,  櫻井　宗矩

IPC: C09K19/56 ,  C09K19/12 ,  C09K19/14 ,  C09K19/16 ,  C09K19/18 ,  C09K19/20 ,  C09K19/30 ,  C09K19/32 ,  C09K19/34 ,  C09K19/38 ,  C09K19/54 ,  G02F1/13 ,  G02F1/1337 ,  G02F1/139

Abstract: 本発明の課題は、ＰＩ層を設けなくとも液晶分子の配向を可能にすることができる液晶組成物を提供することにある。また、本発明の他の目的は、電圧保持率及び信頼性に優れる液晶組成物、及び該液晶組成物を用いた液晶表示素子を提供することにある。　メソゲン基、及び前記メソゲン基に結合した光異性化基又は二量化基を含む化合物（ｉ）、誘電的に中性の化合物を含有し、必要に応じ誘電的に正及び負の化合物から選ばれる化合物を含有するネマチック液晶組成物を提供することにより上記課題を解決した。

公开(公告)号：WO2020005756A1

公开(公告)日：2020-01-02

申请号：PCT/US2019/038466

申请日：2019-06-21

Applicant: REALD SPARK, LLC

Inventor： HARROLD, Jonathan ,  WOODGATE, Graham J. ,  RAMSEY, Robert A.

IPC: G02F1/13 ,  G02F1/01 ,  G02F1/1343 ,  G02F1/1333 ,  G02F1/1334 ,  G02F1/1335 ,  G02F1/13357 ,  G02F1/137 ,  G02F1/139 ,  G02F1/29 ,  G02B6/00

Abstract: A display comprises a polarised output spatial light modulator, switchable liquid crystal retarder, absorbing polariser and touch panel electrodes. The switchable liquid crystal layer is stabilised by a cured reactive mesogen material during application of an applied voltage. Light scatter in privacy mode is reduced and visual security level enhanced. Visibility of disclinations during application of applied pressure, for example from a finger on a touch screen is minimised.