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公开(公告)号:WO2021105285A1
公开(公告)日:2021-06-03
申请号:PCT/EP2020/083510
申请日:2020-11-26
Applicant: HIGHVISTEC GMBH
Inventor: KOMITOV, Lachezar , IBN ELHAJ, Mohammed
IPC: G02F1/1343 , G02F1/1334 , G02F1/137 , G02B5/30
Abstract: A liquid crystal device comprising a first substrate (9), a second substrate (14) and a liquid crystal layer (16) sandwiched between said first and second substrate; wherein an electrode structure is deposited on at least one of said first and second substrates, said electrode structure comprising: a first electrode layer (10); an insulating layer (11); a second electrode layer (12); wherein said electrode structure comprises holes extending through said second electrode layer (12) and said insulating layer (11), such that said insulating layer is discontinuous, and wherein each hole is adapted to generate local fringe fields with azimuthal degenerate direction.
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公开(公告)号:WO2021077079A1
公开(公告)日:2021-04-22
申请号:PCT/US2020/056313
申请日:2020-10-19
Applicant: ROO, INC.
Inventor: XU, Jingren , YANEY, Maximus , GARG, Dhruv
Abstract: Systems and methods for secure video devices are provided. A video device includes a privacy module that can be automatically or manually activated to obscure the field of view of the video device. The video device also includes a visual indicator for indicating when the camera has been activated, in order to alert individuals within view of the camera that the camera is active. The system can automatically detect when a privacy breach occurs (e.g., if an unauthorized user gains access to the camera) and can automatically activate the privacy module in response to the detected privacy breach in order to obscure the field of view of the camera and maintain the privacy of individuals within the field of view of the camera.
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公开(公告)号:WO2020133827A1
公开(公告)日:2020-07-02
申请号:PCT/CN2019/083456
申请日:2019-04-19
Applicant: 深圳市华星光电技术有限公司
IPC: G02F1/1343 , G02F1/137
Abstract: 一种蓝相液晶面板的制作方法及其立体电极(6)的制作方法,立体电极(6)的制作方法包括:提供一基板(1);在基板(1)表面形成一层薄膜(2);在薄膜(2)表面形成辅助金属层(3);将基板(1)刻蚀形成立体基底(4);将基板(1)清洗;以及在立体基底(4)表面沉积ITO(5),得到立体电极(6)。通过金属辅助法制作得到不同形状的立体电极(6),降低了显示面板的驱动电压。
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公开(公告)号:WO2019205976A1
公开(公告)日:2019-10-31
申请号:PCT/CN2019/082705
申请日:2019-04-15
Applicant: 京东方科技集团股份有限公司 , 京东方光科技有限公司
IPC: G02F1/137
Abstract: 一种显示面板和显示装置,属于液晶显示技术领域。显示面板,其具有多个子像素(5),且包括对盒的第一基板(91)和第二基板(92),以及设于第一基板(91)与第二基板(92)间的多稳态液晶(2);其中,每个子像素(5)中设有用于在多稳态液晶(2)中形成电场的第一电极(11)和第二电极(12),多稳态液晶(2)在不同电场下具有不同光学性质,且能在电场消失后保持电场存在时的状态。显示装置,其包括:显示面板;驱动单元,被配置成向第一电极(11)和第二电极(12)提供驱动电压以形成电场;控制单元,其连接到驱动单元,被配置成根据子像素(5)的显示内容是否有变化决定是否向驱动单元发出控制指令,控制指令用于控制驱动单元停止向至少部分显示内容无变化的子像素(5)中的第一电极(11)和第二电极(12)提供驱动电压。
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95.
公开(公告)号:WO2019186015A1
公开(公告)日:2019-10-03
申请号:PCT/FR2019/050572
申请日:2019-03-14
Inventor: BRASSELET, Etienne
Abstract: L'invention concerne un dispositif (103) à retard optique de phase géométrique ajustable comprenant un film de cristal liquide (4) nématique, un aimant permanent (5) comprenant une ouverture (6) traversante, l'aimant (5) étant adapté pour générer un champ magnétique autour d'un axe magnétique (13) passant par l'ouverture (6) traversante, le champ magnétique ayant une composante transverse à l'axe magnétique (13) adaptée pour générer dans le film de cristal liquide (4) une structuration de charge topologique +1 et l'ouverture (6) traversante étant adaptée pour transmettre un faisceau lumineux traversant le film de cristal liquide (4), des électrodes (2, 12) adaptées pour appliquer un champ électrique au film de cristal liquide (4), le champ électrique étant orienté transversalement aux lames (1) et dans lequel le champ électrique et le champ magnétique sont adaptés pour générer dans le film de cristal liquide (4) un retard optique de phase géométrique en spirale autour de l'axe magnétique (13).
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公开(公告)号:WO2019144648A1
公开(公告)日:2019-08-01
申请号:PCT/CN2018/109631
申请日:2018-10-10
Applicant: 华南师范大学 , 深圳市国华光电科技有限公司 , 深圳市国华光电研究院
IPC: G02F1/1334 , G02F1/137 , G02F1/139
Abstract: 一种电响应的红外反射器件,填充有正性液晶(4)、手性掺杂剂、光吸收剂和聚合物网络(6),光吸收剂能够使紫外光照射在填充区内的光强度呈梯度变化,导致聚合物网络(6)的浓度分布呈梯度变化,从而形成了正性液晶螺旋结构的螺距(5)梯度,可以得到宽的反射红外光的带宽。在接入电源电压后,正性液晶(4)分子的长轴会朝向平行于电场的方向转动,由于聚合物网络(6)对液晶分子的锚定作用随着聚合物网络(6)浓度的降低而降低,从而使得正性液晶(4)的螺距(5)逐渐遭到破坏,使得红外反射器件的红外反射带宽从长波段处逐渐减小至反射带宽为0nm,其能够克服现有技术中红外反射带宽不能降为零的缺陷。
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公开(公告)号:WO2019101060A1
公开(公告)日:2019-05-31
申请号:PCT/CN2018/116363
申请日:2018-11-20
Applicant: SMART LIQUID CRYSTAL TECHNOLOGIES CO., LTD.
Inventor: ZHANG, Hongwei , XU, Hui , WANG, Fei , XUE, Jiuzhi
Abstract: The present invention discloses a liquid crystal mixture applied in light modulating devices, comprising: at least one compound selected from the group of compounds of formula (I), at least one compound selected from the group of compounds of formula (II) and/or formula (III), and at least one chiral compound. The invention also discloses a light modulating device containing the liquid crystal mixture, wherein the light modulating device has reduced haze in the transparent state while increased opacity in the light scattering state.
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公开(公告)号:WO2019021884A1
公开(公告)日:2019-01-31
申请号:PCT/JP2018/026738
申请日:2018-07-17
Applicant: JSR株式会社
IPC: G02F1/1335 , G02B26/02 , G02F1/137 , G02F1/167 , G02F1/17
Abstract: 本発明の表示装置は、第1基板(11)と、前記第1基板(11)に対向して配置された第2基板(45)と、前記第1基板(11)と前記第2基板(45)との間の前記第1基板(11)側に配置される第1透明電極(35)と、前記第1基板(11)と前記第2基板(45)との間の前記第2基板(45)側に配置される第2透明電極(43)と、前記第1基板(11)と前記第1透明電極(35)との間の反射層(27)と、前記第1透明電極(35)と前記第2透明電極(43)との間に配置され、調光機能を有する液晶層(46)と、前記第1透明電極(35)と前記反射層(27)との間に配置される発色層(33)と、を有し、前記第2基板(45)側から入射する入射光(Li)の色と、前記反射層(27)で反射され前記第2基板(45)側から出射される出射光(Lo)の色とは、互いに異なる。
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99.
公开(公告)号:WO2018223902A1
公开(公告)日:2018-12-13
申请号:PCT/CN2018/089588
申请日:2018-06-01
Inventor: TSENG, Man Chun , MENG, Cuiling , TANG, Shu Tuen , KWOK, Hoi-Sing
IPC: G02F1/1337 , G02F1/137 , G02F1/1334
CPC classification number: G02F1/133711 , G02F1/13306 , G02F1/13725 , G02F2001/13345 , G02F2001/13347 , G02F2001/133738 , G02F2001/133742 , G02F2001/133757 , G02F2001/133761 , G02F2001/13706 , G02F2001/13712
Abstract: Devices and methods related to an electrically switchable light controlling device are provided. A device comprises two transparent conductive substrates (10), two inhomogeneous alignment layers (20), each coated on a respective transparent substrate (10), a spacer (30) in between the two transparent substrates (10), a liquid crystal layer in between the two transparent substrates (10); and a polymer network (40) inside the liquid crystal layer. The device can be used for smart windows, touch screen, or privacy windows.
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公开(公告)号:WO2018206545A1
公开(公告)日:2018-11-15
申请号:PCT/EP2018/061797
申请日:2018-05-08
Applicant: MERCK PATENT GMBH
Inventor: DE JONG, Ties , VAN OOSTEN, Casper
IPC: G02F1/1335 , G02F1/137 , E06B9/24
Abstract: The invention relates to a switchable optical device (10) having a layer structure comprising at least one switchable layer (15) and at least one optical layer (20, 22). The at least one switchable layer (15) comprises a liquid-crystalline material and at least one dye. The at least one optical layer (20, 22) has at least one reflection band (32) which includes at least a first part of the visible spectrum and has at least one transmission band (30, 34) which includes at least a second part of the visible spectrum.The absorption spectrum of the at least one switchable layer (15) is adjusted by means of the at least one dye such that the light transmission through the switchable optical device (10) for incident light in the visible light spectrum for at least one of the states of the switchable layer (15) is set to a predetermined transmission spectrum.
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