EP 2678738 A1 20140101 - METHOD FOR MAKING BISTABLE NEMATIC LIQUID-CRYSTAL DEVICES
Title (en)
METHOD FOR MAKING BISTABLE NEMATIC LIQUID-CRYSTAL DEVICES
Title (de)
VERFAHREN ZUR HESRSTELLUNG BISTABILER, NEMATISCHER FLÜSSIGKRISTALL-VORRICHTUNGEN
Title (fr)
PROCÉDÉ DE RÉALISATION DE DISPOSITIFS À CRISTAUX LIQUIDES NÉMATIQUES BISTABLES
Publication
Application
Priority
- FR 0855121 A 20080725
- EP 2009059472 W 20090723
Abstract (en)
[origin: WO2010010140A1] The invention relates to a method for making bistable nematic liquid-crystal devices including a nematic liquid-crystal layer (30) provided between two plates (20, 10), each plate including a blade (21, 11), an electrode (22, 12) and a nematic liquid-crystal alignment layer (24, 14), wherein at least one of the alignment layers has low zenith anchoring for said liquid crystal, a low pretilt and an average or strong azimuth anchoring, and wherein said at least one of said alignment layers (24, 14) is obtained by depositing a solution containing a polymer, said polymer being a copolymer or a terpolymer derived from vinyl chloride and vinyl ethers, the solution further including an additive selected from the group consisting of aromatic polyimides, precursors of the aromatic polyamic acid type, or a mixture of these compounds.
IPC 8 full level
G02F 1/1337 (2006.01)
CPC (source: EP US)
G02F 1/133711 (2013.01 - EP US); G02F 1/1391 (2013.01 - EP US); Y10T 156/10 (2015.01 - EP US)
Citation (search report)
See references of WO 2010010140A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
WO 2010010140 A1 20100128; CN 102165364 A 20110824; EP 2678738 A1 20140101; FR 2934380 A1 20100129; FR 2934380 B1 20100903; TW 201022806 A 20100616; US 2012160393 A1 20120628
DOCDB simple family (application)
EP 2009059472 W 20090723; CN 200980137680 A 20090723; EP 09780964 A 20090723; FR 0855121 A 20080725; TW 98124943 A 20090724; US 200913386893 A 20090723