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1. (WO2019061041) WAVELENGTH SELECTIVE SWITCH, ALIGNMENT DIRECTION ACQUISITION METHOD, LIQUID CRYSTAL ON SILICON, AND MANUFACTURING METHOD
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Pub. No.: WO/2019/061041 International Application No.: PCT/CN2017/103538
Publication Date: 04.04.2019 International Filing Date: 26.09.2017
IPC:
G02F 1/1337 (2006.01) ,G02F 1/31 (2006.01) ,G02B 6/293 (2006.01)
G PHYSICS
02
OPTICS
F
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1
Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01
for the control of the intensity, phase, polarisation or colour
13
based on liquid crystals, e.g. single liquid crystal display cells
133
Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333
Constructional arrangements
1337
Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
G PHYSICS
02
OPTICS
F
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1
Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
29
for the control of the position or the direction of light beams, i.e. deflection
31
Digital deflection devices
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6
Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
24
Coupling light guides
26
Optical coupling means
28
having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
293
with wavelength selective means
Applicants:
华为技术有限公司 HUAWEI TECHNOLOGIES CO., LTD. [CN/CN]; 中国广东省深圳市 龙岗区坂田华为总部办公楼 Huawei Administration Building, Bantian, Longgang District Shenzhen, Guangdong 518129, CN
Inventors:
宗良佳 ZONG, Liangjia; CN
毛磊 MAO, Lei; CN
王咪 WANG, Mi; CN
赵晗 ZHAO, Han; CN
Agent:
广州三环专利商标代理有限公司 SCIHEAD IP LAW FIRM; 中国广东省广州市 越秀区先烈中路80号汇华商贸大厦1508室 Room 1508, Huihua Commercial & Trade Building No. 80, XianLie Zhong Road,Yuexiu District Guangzhou, Guangdong 510070, CN
Priority Data:
Title (EN) WAVELENGTH SELECTIVE SWITCH, ALIGNMENT DIRECTION ACQUISITION METHOD, LIQUID CRYSTAL ON SILICON, AND MANUFACTURING METHOD
(FR) COMMUTATEUR SÉLECTIF EN LONGUEUR D'ONDE, PROCÉDÉ D'ACQUISITION DE DIRECTION D'ALIGNEMENT, CRISTAL LIQUIDE SUR SILICIUM ET PROCÉDÉ DE FABRICATION
(ZH) 波长选择开关、配向方向获取方法、硅基液晶及制作方法
Abstract:
(EN) A liquid crystal on silicon (1), a wavelength selective switch (100), an alignment direction R1 acquisition method, and a method for manufacturing the liquid crystal on silicon (1). The liquid crystal on silicon (1) applied to the wavelength selective switch (100) has a first pixel region (20); a liquid crystal layer (13) comprises a first liquid crystal (131) located in the first pixel region (20); under the control of an electric field, the first liquid crystal (131) is deflected on a plane perpendicular to a first panel (11) and is deflected in a first direction D1 on a plane parallel to the first panel (11); an alignment film (15) comprises a first partial alignment film (151) located in the first pixel region (20); and the alignment direction R1 of the first partial alignment film (151) deflects in a second direction D2 relative to a polarization direction P1 of incident light beams (202), wherein the second direction D2 is the opposite of the first direction D1 so as to reduce the loss of deflected light beams (203). The liquid crystal on silicon (1) can reduce the loss of the wavelength selective switch (100).
(FR) L'invention concerne un cristal liquide sur silicium (1), un commutateur sélectif en longueur d'onde (100), un procédé d'acquisition de direction d'alignement R1, et un procédé de fabrication du cristal liquide sur silicium (1). Le cristal liquide sur silicium (1) appliqué au commutateur sélectif en longueur d'onde (100) comprend une première région de pixel (20) ; une couche de cristaux liquides (13) comprend un premier cristal liquide (131) situé dans la première région de pixel (20) ; sous la commande d'un champ électrique, le premier cristal liquide (131) est dévié sur un plan perpendiculaire à un premier panneau (11) et est dévié dans une première direction D1 sur un plan parallèle au premier panneau (11) ; un film d'alignement (15) comprend un premier film d'alignement partiel (151) situé dans la première région de pixel (20) ; et la direction d'alignement R1 du premier film d'alignement partiel (151) dévie dans une seconde direction D2 par rapport à une direction de polarisation P1 de faisceaux lumineux incidents (202), la seconde direction D2 étant opposée à la première direction D1 de façon à réduire la perte de faisceaux lumineux déviés (203). Le cristal liquide sur silicium (1) peut réduire la perte du commutateur sélectif en longueur d'onde (100).
(ZH) 一种硅基液晶(1)、波长选择开关(100)、配向方向R1获取方法以及一种硅基液晶(1)制作方法。应用于波长选择开关(100)的硅基液晶(1)具有第一像素区(20),液晶层(13)包括位于第一像素区(20)内的第一液晶(131),在电场的控制下,第一液晶(131)在垂直于第一面板(11)的平面上发生偏转,且在平行于第一面板(11)的平面上向第一方向D1偏转,配向膜(15)包括位于第一像素区(20)内的第一部分配向膜(151),第一部分配向膜(151)的配向方向R1相对入射光束(202)的偏振方向P1向第二方向D2偏转,第二方向D2与第一方向D1相反,以降低偏转光束(203)的损耗。硅基液晶(1)能够降低波长选择开关(100)的损耗。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Chinese (ZH)
Filing Language: Chinese (ZH)