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1. (WO1979001025) THE ORIENTATION OF ORDERED LIQUIDS AND THEIR USE IN DEVICES
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1979/001025 International Application No.: PCT/US1979/000286
Publication Date: 29.11.1979 International Filing Date: 01.05.1979
IPC:
G02F 1/1335 (2006.01) ,G02F 1/1337 (2006.01) ,G02F 1/1343 (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
1335
Structural association of optical devices, e.g. polarisers, reflectors, with the cell
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
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
1343
Electrodes
Applicants:
Inventors:
Priority Data:
90233203.05.1978US
Title (EN) THE ORIENTATION OF ORDERED LIQUIDS AND THEIR USE IN DEVICES
(FR) ORIENTATION DE LIQUIDES ORDONNES ET LEUR UTILISATION DANS DES DISPOSITIFS
Abstract:
(EN) Ordered liquids, or mesophases, are aligned by forming a structure on a substrate surface using a planar process of formation, the surface structure having a predetermined pattern, and applying a mesophase to the surface to substantially orient the molecules of the mesophase in accordance with the predetermined pattern. A liquid crystal display device can be made in which, in a preferred embodiment, the liquid crystal (29) is confined between two substrates (20 and 21) having oppositely disposed surfaces on which selected patterns of surface structures have been formed. The surface structures can be grating structures (25 and 26) made of conductive material (23 and 24), such as metal, which structures act to align the liquid crystal in accordance with the selected patterns, to polarize light passing through the surface structures, and to provide electrical contacts so that an electric signal applied thereto can produce an electrical field in the region between the substrate surface structures.
(FR) Des liquides ordonnes, ou mesophases, sont alignes en formant une structure sur la surface d"un substrat par un procede de formation planaire, la structure de la surface ayant une configuration predeterminee, et application d"une mesophase sur la surface pour orienter sensiblement les molecules de la mesophase selon la configuration predeterminee. Un dispositif d"affichage par cristaux liquides peut etre realise dans lequel, dans un mode preferentiel de realisation, le cristal liquide (29) est confine entre deux substrats (20 et 21) ayant des surfaces opposees sur lesquelles des configurations selectionnees des structures de surface ont ete formees. Les structures de surface peuvent etre des structures a quadrillage (25 et 26) faites avec un materiau conducteur (23 et 24), tel qu"un metal, et agissent pour aligner le cristal liquide avec les configurations selectionnees de maniere a polariser la lumiere passant a travers les structures de surface, et assurer des contacts electriques de sorte qu"un signal electrique applique sur celles-ci peut produire un champ electrique dans la region entre les structures de surface des substrats.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)