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1. (WO1998030653) METHOD OF MAKING A LIQUID CRYSTAL LIGHT VALVE
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/1998/030653 International Application No.: PCT/US1997/000047
Publication Date: 16.07.1998 International Filing Date: 08.01.1997
Chapter 2 Demand Filed: 07.04.1998
IPC:
C08F 2/38 (2006.01) ,C09K 19/54 (2006.01) ,G02F 1/1334 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
2
Processes of polymerisation
38
Polymerisation using regulators, e.g. chain terminating agents
C CHEMISTRY; METALLURGY
09
DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
K
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
19
Liquid crystal materials
52
characterised by components which are not liquid crystals, e.g. additives
54
Additives having no specific mesophase
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
1334
based on polymer-dispersed liquid crystals, e.g. microencapsulated liquid crystals
Applicants: RAYCHEM CORPORATION[US/US]; 300 Constitution Drive Mail Stop 120/6600 Menlo Park, CA 94025, US
Inventors: LAU, Aldrich, N., K.; US
REDDY, Damoder; US
TOMITA, Akira; US
VO, Lanchi, P.; US
ANDREWS, Brackin, L.; US
DI ZIO, Kathleen; US
KAMATH, Hundi; US
Agent: CHAO, Yuan ; Raychem Corporation Intellectual Property Law Dept. 300 Constitution Drive Mail Stop 120/6600 Menlo Park, CA 94025, US
Priority Data:
Title (EN) METHOD OF MAKING A LIQUID CRYSTAL LIGHT VALVE
(FR) PROCEDE DE PRODUCTION D'UN MODULATEUR DE LUMIERE A CRISTAUX LIQUIDES
Abstract:
(EN) A method is disclosed for making a liquid crystal light valve in which the electro-optically active element is a liquid crystal composite sandwiched between two electrodes. The liquid crystal composite comprises plural volumes of liquid crystal material dispersed in a polymer matrix. By use of a tie layer, the problem of stress clearing is markedly reduced or eliminated. The tie layer material can be either a liquid crystal material or a telomer, cross-linkable or otherwise.
(FR) Procédé de production d'un modulateur de lumière à cristaux liquides, dans lequel l'élément électro-optiquement actif est un composite à cristaux liquides inséré entre deux électrodes. Le composite à cristaux liquides comprend plusieurs volumes de matériau à cristaux liquides dispersés dans une matrice polymère. En utilisant une couche de liaison, on peut considérablement réduire voire éliminer le problème de l'éclaircissement dû aux sollicitations. Le matériau de la couche de liaison peut être soit un matériau à cristaux liquides soit un télomère réticulable ou similaire.
Designated States: CA, JP, KR, MX
European Patent Office (EPO) (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)