WO2014210165A3 - Polymer-dispersed blue-phase liquid crystal films - Google Patents

Polymer-dispersed blue-phase liquid crystal films Download PDF

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Publication number
WO2014210165A3
WO2014210165A3 PCT/US2014/044112 US2014044112W WO2014210165A3 WO 2014210165 A3 WO2014210165 A3 WO 2014210165A3 US 2014044112 W US2014044112 W US 2014044112W WO 2014210165 A3 WO2014210165 A3 WO 2014210165A3
Authority
WO
WIPO (PCT)
Prior art keywords
liquid crystal
blue
polymer
phase
phase liquid
Prior art date
Application number
PCT/US2014/044112
Other languages
French (fr)
Other versions
WO2014210165A2 (en
Inventor
Liang-Chy Chien
Jeoung-Yeon Hwang
Emine KEMIKLIOGLU
Original Assignee
Kent State University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kent State University filed Critical Kent State University
Publication of WO2014210165A2 publication Critical patent/WO2014210165A2/en
Publication of WO2014210165A3 publication Critical patent/WO2014210165A3/en
Priority to US14/950,384 priority Critical patent/US10031364B2/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/02—Liquid crystal materials characterised by optical, electrical or physical properties of the components, in general
    • C09K19/0275—Blue phase
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K19/54—Additives having no specific mesophase characterised by their chemical composition
    • C09K19/542—Macromolecular compounds
    • C09K19/544—Macromolecular compounds as dispersing or encapsulating medium around the liquid crystal
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—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
    • G02F1/01—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 for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—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
    • G02F1/01—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 for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/137—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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/13793—Blue phases

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Nonlinear Science (AREA)
  • Dispersion Chemistry (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)

Abstract

A polymer-dispersed blue-phase (PDBP) liquid crystal film is formed from a polymer-based latex and blue-phase liquid crystals that are combined using an emulsification process or a polymerization-induced phase separation process. The resultant PDBP liquid crystal film includes droplets formed by the polymer-based latex that encapsulate the blue-phase liquid crystals therein, so as to allow the blue-phase liquid crystals to have a blue phase at room temperature. As such, the PDBP liquid crystal film is conducive for use in manufacturing processes, such as LCD (liquid crystal display) manufacturing processes, while providing desirable optical features, such as field-induced birefringence at low switching voltages.
PCT/US2014/044112 2013-06-25 2014-06-25 Polymer-dispersed blue-phase liquid crystal films WO2014210165A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/950,384 US10031364B2 (en) 2013-06-25 2015-11-24 Polymer-dispersed blue-phase liquid crystal films

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361839047P 2013-06-25 2013-06-25
US61/839,047 2013-06-25

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US14/950,384 Continuation-In-Part US10031364B2 (en) 2013-06-25 2015-11-24 Polymer-dispersed blue-phase liquid crystal films

Publications (2)

Publication Number Publication Date
WO2014210165A2 WO2014210165A2 (en) 2014-12-31
WO2014210165A3 true WO2014210165A3 (en) 2015-11-19

Family

ID=52142827

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2014/044112 WO2014210165A2 (en) 2013-06-25 2014-06-25 Polymer-dispersed blue-phase liquid crystal films

Country Status (1)

Country Link
WO (1) WO2014210165A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017035291A1 (en) * 2015-08-25 2017-03-02 Kent State University Composite exhibiting blue phase iii and electro-optical memory of a scaffold
BR112018069257A2 (en) 2016-03-23 2019-01-22 Guardian Glass Llc low turbidity switchable liquid crystal arrangement for use in switchable window or the like

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5196952A (en) * 1991-03-27 1993-03-23 Ag Technology Co., Ltd. Liquid crystal display element and a projection type liquid crystal display apparatus
US5216530A (en) * 1985-06-03 1993-06-01 Taliq Corporation Encapsulated liquid crystal having a smectic phase
US5543944A (en) * 1994-10-31 1996-08-06 Raychem Corporation Method of imbibing a component into a liquid crystal composite
US20050162606A1 (en) * 2004-01-28 2005-07-28 Doane J. W. Liquid crystal display
US20090027611A1 (en) * 2006-01-12 2009-01-29 The University Of Manitoba Metal Nanoparticle and Use Thereof for Inducing Chirality in Liquid Crystal Phases
US20120249928A1 (en) * 2009-09-24 2012-10-04 Fujifilm Corporation Liquid crystal display device
US20130070193A1 (en) * 2010-03-31 2013-03-21 Sony Corporation Method of stabilizing a blue phase liquid crystal composition

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5216530A (en) * 1985-06-03 1993-06-01 Taliq Corporation Encapsulated liquid crystal having a smectic phase
US5196952A (en) * 1991-03-27 1993-03-23 Ag Technology Co., Ltd. Liquid crystal display element and a projection type liquid crystal display apparatus
US5543944A (en) * 1994-10-31 1996-08-06 Raychem Corporation Method of imbibing a component into a liquid crystal composite
US20050162606A1 (en) * 2004-01-28 2005-07-28 Doane J. W. Liquid crystal display
US20090027611A1 (en) * 2006-01-12 2009-01-29 The University Of Manitoba Metal Nanoparticle and Use Thereof for Inducing Chirality in Liquid Crystal Phases
US20120249928A1 (en) * 2009-09-24 2012-10-04 Fujifilm Corporation Liquid crystal display device
US20130070193A1 (en) * 2010-03-31 2013-03-21 Sony Corporation Method of stabilizing a blue phase liquid crystal composition

Also Published As

Publication number Publication date
WO2014210165A2 (en) 2014-12-31

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