TWI852904B
Provided are: a liquid crystal aligning agent which is able to make the pretilt angles of liquid crystals almost zero degree, and which is therefore used for display elements such as a monitor that requires images having high definition, high luminance and high reliability; and a method for producin...
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| creator | NIITSU, SHINPEI SUGA, TAKAHIRO SAKUMA, DAISUKE HASEGAWA, NAOSHI TOMOE, KOJI |
| description | Provided are: a liquid crystal aligning agent which is able to make the pretilt angles of liquid crystals almost zero degree, and which is therefore used for display elements such as a monitor that requires images having high definition, high luminance and high reliability; and a method for producing a liquid crystal alignment film from this liquid crystal aligning agent. A liquid crystal aligning agent which contains at least one polymer selected from the group consisting of polyimide precursors that are obtained by subjecting a tetracarboxylic acid component and a diamine component containing a diamine represented by formula (1) to a polymerization reaction, and polyimides obtained from these polyimide precursors; and a method for producing a liquid crystal alignment film from this liquid crystal aligning agent. (In the formula, X represents NHCO, CONH, COO- or OCO; m represents a number of 1-5; n represents a number of 0-6; and each of R1-R4 independently represents a methyl group or an ethyl group.) |
| format | Patent |
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A liquid crystal aligning agent which contains at least one polymer selected from the group consisting of polyimide precursors that are obtained by subjecting a tetracarboxylic acid component and a diamine component containing a diamine represented by formula (1) to a polymerization reaction, and polyimides obtained from these polyimide precursors; and a method for producing a liquid crystal alignment film from this liquid crystal aligning agent. (In the formula, X represents NHCO, CONH, COO- or OCO; m represents a number of 1-5; n represents a number of 0-6; and each of R1-R4 independently represents a methyl group or an ethyl group.)</description><language>chi</language><subject>ADHESIVES ; CHEMISTRY ; COMPOSITIONS BASED THEREON ; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING ; DYES ; FREQUENCY-CHANGING ; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS ; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE ; METALLURGY ; MISCELLANEOUS APPLICATIONS OF MATERIALS ; MISCELLANEOUS COMPOSITIONS ; NATURAL RESINS ; NON-LINEAR OPTICS ; OPTICAL ANALOGUE/DIGITAL CONVERTERS ; OPTICAL LOGIC ELEMENTS ; OPTICS ; ORGANIC MACROMOLECULAR COMPOUNDS ; PAINTS ; PHYSICS ; POLISHES ; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF ; THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><creationdate>2024</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240821&DB=EPODOC&CC=TW&NR=I852904B$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240821&DB=EPODOC&CC=TW&NR=I852904B$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NIITSU, SHINPEI</creatorcontrib><creatorcontrib>SUGA, TAKAHIRO</creatorcontrib><creatorcontrib>SAKUMA, DAISUKE</creatorcontrib><creatorcontrib>HASEGAWA, NAOSHI</creatorcontrib><creatorcontrib>TOMOE, KOJI</creatorcontrib><title>TWI852904B</title><description>Provided are: a liquid crystal aligning agent which is able to make the pretilt angles of liquid crystals almost zero degree, and which is therefore used for display elements such as a monitor that requires images having high definition, high luminance and high reliability; and a method for producing a liquid crystal alignment film from this liquid crystal aligning agent. A liquid crystal aligning agent which contains at least one polymer selected from the group consisting of polyimide precursors that are obtained by subjecting a tetracarboxylic acid component and a diamine component containing a diamine represented by formula (1) to a polymerization reaction, and polyimides obtained from these polyimide precursors; and a method for producing a liquid crystal alignment film from this liquid crystal aligning agent. 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A liquid crystal aligning agent which contains at least one polymer selected from the group consisting of polyimide precursors that are obtained by subjecting a tetracarboxylic acid component and a diamine component containing a diamine represented by formula (1) to a polymerization reaction, and polyimides obtained from these polyimide precursors; and a method for producing a liquid crystal alignment film from this liquid crystal aligning agent. (In the formula, X represents NHCO, CONH, COO- or OCO; m represents a number of 1-5; n represents a number of 0-6; and each of R1-R4 independently represents a methyl group or an ethyl group.)</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DYES FREQUENCY-CHANGING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PHYSICS POLISHES TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF THEIR PREPARATION OR CHEMICAL WORKING-UP |
| title | TWI852904B |
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