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1. (WO1998050820) CELL COMPRISING A CONTROLLED ANCHORING PLATE FOR NEMATIC LIQUID CRISTALS AND PROCESS FOR FABRICATING SAID PLATE
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/1998/050820 International Application No.: PCT/FR1998/000878
Publication Date: 12.11.1998 International Filing Date: 30.04.1998
IPC:
G02F 1/1337 (2006.01) ,G02F 1/139 (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
01
for the control of the intensity, phase, polarisation or colour
13
based on liquid crystals, e.g. single liquid crystal display cells
137
characterised by a particular electro- or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction, dynamic scattering
139
based on orientation effects in which the liquid crystal remains transparent
Applicants:
BARBERI, Riccardo, Cristoforo [IT/IT]; IT (UsOnly)
BARTOLINO, Roberto [IT/IT]; IT (UsOnly)
GIOCONDO, Michele [IT/IT]; IT (UsOnly)
IOVANE, Maria [IT/IT]; IT (UsOnly)
ALEXE-IONESCU, Anca, Luisa [RO/RO]; RO (UsOnly)
BONVENT, Jean-Jacques [FR/BR]; BR (UsOnly)
SCHADT, Martin [CH/CH]; CH (UsOnly)
ISTITUTO NAZIONALE PER LA FISICA DELLA MATERIA [IT/IT]; Via Dodecanneso I-16142 Genes, IT (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, JP, LU, MC, NL, PT, SE)
Inventors:
BARBERI, Riccardo, Cristoforo; IT
BARTOLINO, Roberto; IT
GIOCONDO, Michele; IT
IOVANE, Maria; IT
ALEXE-IONESCU, Anca, Luisa; RO
BONVENT, Jean-Jacques; BR
SCHADT, Martin; CH
Agent:
MARTIN, Jean-Jacques ; Cabinet Regimbeau 26, avenue Kléber F-75116 Paris, FR
Priority Data:
97/0546602.05.1997FR
Title (EN) CELL COMPRISING A CONTROLLED ANCHORING PLATE FOR NEMATIC LIQUID CRISTALS AND PROCESS FOR FABRICATING SAID PLATE
(FR) CELLULE COMPRENANT UNE PLAQUE A ANCRAGE CONTROLE POUR CRISTAUX LIQUIDES NEMATIQUES ET PROCEDE DE REALISATION D'UNE TELLE PLAQUE
Abstract:
(EN) The present invention relates to a liquid cristal cell comprising at least one controlled anchoring plate (100) comprising at least two superimposed layers (120, 130) having each an alignment effect on nematic molecules (150) located at the vicinity of a same surface (133) of the plate (100), both layers (120, 130) having different alignment directions (P, L).
(FR) La présente invention concerne une cellule à cristaux liquides comprenant au moins une plaque (100) à ancrage contrôlé comprenant au moins deux couches (120, 130) superposées ayant chacune un effet d'alignement sur les molécules nématiques (150) se trouvant au voisinage d'une même surface (133) de la plaque (100), ces deux couches (120, 130) n'ayant pas la même direction d'alignement (P, L).
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Designated States: JP, US
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: French (FR)
Filing Language: French (FR)