LIQUID CRYSTAL DEVICES AND METHOD FOR MANUFACTURING LIQUID CRYSTAL DEVICES
A liquid crystal device is disclosed, comprising a first substrate, a second substrate and a chiral nematic liquid crystal layer sandwiched between the first substrate and the second substrate and in contact with at least one alignment layer. The chiral nematic liquid crystal layer further comprises...
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| creator | YIP, Wing Chiu WILKINSON, Timothy David |
| description | A liquid crystal device is disclosed, comprising a first substrate, a second substrate and a chiral nematic liquid crystal layer sandwiched between the first substrate and the second substrate and in contact with at least one alignment layer. The chiral nematic liquid crystal layer further comprises a uniform lying helix structure having a helical axis substantially perpendicular to the first and/or second substrate normal. The chiral nematic liquid crystal layer is stabilised under zero applied electric field by aligned domains of splay and bend deformation. The liquid crystal layer is substantially free of polymer, including at the interface with the alignment layer. Furthermore, the interface between the liquid crystal layer and the alignment layer is substantially free of anchoring protrusions and/or anchoring recesses.
L'invention concerne un dispositif à cristaux liquides, comprenant un premier substrat, un deuxième substrat et une couche de cristaux liquides chiraux nématiques intercalée entre le premier substrat et le deuxième substrat et en contact avec au moins une couche d'alignement. La couche de cristaux liquides chiraux nématiques comprend en outre structure hélicoïdale disposée uniformément dont l'axe d'hélice est sensiblement perpendiculaire à la normale du premier et/ou du deuxième substrat. La couche de cristaux liquides chiraux nématiques est stabilisée en l'absence d'application de champ électrique par des domaines alignés de déformation par divergence ou courbure. La couche de cristaux liquides est sensiblement dépourvue de polymères, y compris à l'interface avec la couche d'alignement. En outre, l'interface entre la couche de cristaux liquides et la couche d'alignement est sensiblement dépourvue d'excroissances d'ancrage et/ou d'évidements d'ancrage. |
| format | Patent |
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L'invention concerne un dispositif à cristaux liquides, comprenant un premier substrat, un deuxième substrat et une couche de cristaux liquides chiraux nématiques intercalée entre le premier substrat et le deuxième substrat et en contact avec au moins une couche d'alignement. La couche de cristaux liquides chiraux nématiques comprend en outre structure hélicoïdale disposée uniformément dont l'axe d'hélice est sensiblement perpendiculaire à la normale du premier et/ou du deuxième substrat. La couche de cristaux liquides chiraux nématiques est stabilisée en l'absence d'application de champ électrique par des domaines alignés de déformation par divergence ou courbure. La couche de cristaux liquides est sensiblement dépourvue de polymères, y compris à l'interface avec la couche d'alignement. En outre, l'interface entre la couche de cristaux liquides et la couche d'alignement est sensiblement dépourvue d'excroissances d'ancrage et/ou d'évidements d'ancrage.</description><language>eng ; fre</language><subject>ADHESIVES ; CHEMISTRY ; 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 ; 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 ; PAINTS ; PHYSICS ; POLISHES ; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF</subject><creationdate>2018</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=20181025&DB=EPODOC&CC=WO&NR=2018192862A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20181025&DB=EPODOC&CC=WO&NR=2018192862A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>YIP, Wing Chiu</creatorcontrib><creatorcontrib>WILKINSON, Timothy David</creatorcontrib><title>LIQUID CRYSTAL DEVICES AND METHOD FOR MANUFACTURING LIQUID CRYSTAL DEVICES</title><description>A liquid crystal device is disclosed, comprising a first substrate, a second substrate and a chiral nematic liquid crystal layer sandwiched between the first substrate and the second substrate and in contact with at least one alignment layer. The chiral nematic liquid crystal layer further comprises a uniform lying helix structure having a helical axis substantially perpendicular to the first and/or second substrate normal. The chiral nematic liquid crystal layer is stabilised under zero applied electric field by aligned domains of splay and bend deformation. The liquid crystal layer is substantially free of polymer, including at the interface with the alignment layer. Furthermore, the interface between the liquid crystal layer and the alignment layer is substantially free of anchoring protrusions and/or anchoring recesses.
L'invention concerne un dispositif à cristaux liquides, comprenant un premier substrat, un deuxième substrat et une couche de cristaux liquides chiraux nématiques intercalée entre le premier substrat et le deuxième substrat et en contact avec au moins une couche d'alignement. La couche de cristaux liquides chiraux nématiques comprend en outre structure hélicoïdale disposée uniformément dont l'axe d'hélice est sensiblement perpendiculaire à la normale du premier et/ou du deuxième substrat. La couche de cristaux liquides chiraux nématiques est stabilisée en l'absence d'application de champ électrique par des domaines alignés de déformation par divergence ou courbure. La couche de cristaux liquides est sensiblement dépourvue de polymères, y compris à l'interface avec la couche d'alignement. En outre, l'interface entre la couche de cristaux liquides et la couche d'alignement est sensiblement dépourvue d'excroissances d'ancrage et/ou d'évidements d'ancrage.</description><subject>ADHESIVES</subject><subject>CHEMISTRY</subject><subject>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</subject><subject>DYES</subject><subject>FREQUENCY-CHANGING</subject><subject>MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE</subject><subject>METALLURGY</subject><subject>MISCELLANEOUS APPLICATIONS OF MATERIALS</subject><subject>MISCELLANEOUS COMPOSITIONS</subject><subject>NATURAL RESINS</subject><subject>NON-LINEAR OPTICS</subject><subject>OPTICAL ANALOGUE/DIGITAL CONVERTERS</subject><subject>OPTICAL LOGIC ELEMENTS</subject><subject>OPTICS</subject><subject>PAINTS</subject><subject>PHYSICS</subject><subject>POLISHES</subject><subject>TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2018</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZPDy8QwM9XRRcA6KDA5x9FFwcQ3zdHYNVnD0c1HwdQ3x8HdRcPMPUvB19At1c3QOCQ3y9HNXwK6Hh4E1LTGnOJUXSnMzKLu5hjh76KYW5MenFhckJqfmpZbEh_sbGRhaGFoaWZgZORoaE6cKACDQLng</recordid><startdate>20181025</startdate><enddate>20181025</enddate><creator>YIP, Wing Chiu</creator><creator>WILKINSON, Timothy David</creator><scope>EVB</scope></search><sort><creationdate>20181025</creationdate><title>LIQUID CRYSTAL DEVICES AND METHOD FOR MANUFACTURING LIQUID CRYSTAL DEVICES</title><author>YIP, Wing Chiu ; WILKINSON, Timothy David</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_WO2018192862A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>2018</creationdate><topic>ADHESIVES</topic><topic>CHEMISTRY</topic><topic>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</topic><topic>DYES</topic><topic>FREQUENCY-CHANGING</topic><topic>MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE</topic><topic>METALLURGY</topic><topic>MISCELLANEOUS APPLICATIONS OF MATERIALS</topic><topic>MISCELLANEOUS COMPOSITIONS</topic><topic>NATURAL RESINS</topic><topic>NON-LINEAR OPTICS</topic><topic>OPTICAL ANALOGUE/DIGITAL CONVERTERS</topic><topic>OPTICAL LOGIC ELEMENTS</topic><topic>OPTICS</topic><topic>PAINTS</topic><topic>PHYSICS</topic><topic>POLISHES</topic><topic>TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF</topic><toplevel>online_resources</toplevel><creatorcontrib>YIP, Wing Chiu</creatorcontrib><creatorcontrib>WILKINSON, Timothy David</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>YIP, Wing Chiu</au><au>WILKINSON, Timothy David</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>LIQUID CRYSTAL DEVICES AND METHOD FOR MANUFACTURING LIQUID CRYSTAL DEVICES</title><date>2018-10-25</date><risdate>2018</risdate><abstract>A liquid crystal device is disclosed, comprising a first substrate, a second substrate and a chiral nematic liquid crystal layer sandwiched between the first substrate and the second substrate and in contact with at least one alignment layer. The chiral nematic liquid crystal layer further comprises a uniform lying helix structure having a helical axis substantially perpendicular to the first and/or second substrate normal. The chiral nematic liquid crystal layer is stabilised under zero applied electric field by aligned domains of splay and bend deformation. The liquid crystal layer is substantially free of polymer, including at the interface with the alignment layer. Furthermore, the interface between the liquid crystal layer and the alignment layer is substantially free of anchoring protrusions and/or anchoring recesses.
L'invention concerne un dispositif à cristaux liquides, comprenant un premier substrat, un deuxième substrat et une couche de cristaux liquides chiraux nématiques intercalée entre le premier substrat et le deuxième substrat et en contact avec au moins une couche d'alignement. La couche de cristaux liquides chiraux nématiques comprend en outre structure hélicoïdale disposée uniformément dont l'axe d'hélice est sensiblement perpendiculaire à la normale du premier et/ou du deuxième substrat. La couche de cristaux liquides chiraux nématiques est stabilisée en l'absence d'application de champ électrique par des domaines alignés de déformation par divergence ou courbure. La couche de cristaux liquides est sensiblement dépourvue de polymères, y compris à l'interface avec la couche d'alignement. En outre, l'interface entre la couche de cristaux liquides et la couche d'alignement est sensiblement dépourvue d'excroissances d'ancrage et/ou d'évidements d'ancrage.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ADHESIVES CHEMISTRY 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 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 PAINTS PHYSICS POLISHES TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF |
| title | LIQUID CRYSTAL DEVICES AND METHOD FOR MANUFACTURING LIQUID CRYSTAL DEVICES |
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