GB1522315A - Liquid crystalline materials - Google Patents

Liquid crystalline materials

Info

Publication number
GB1522315A
GB1522315A GB40527/75A GB4052775A GB1522315A GB 1522315 A GB1522315 A GB 1522315A GB 40527/75 A GB40527/75 A GB 40527/75A GB 4052775 A GB4052775 A GB 4052775A GB 1522315 A GB1522315 A GB 1522315A
Authority
GB
United Kingdom
Prior art keywords
liquid crystalline
crystalline material
tri
aligning agent
cell
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB40527/75A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xerox Corp
Original Assignee
Xerox Corp
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
Priority claimed from US513003A external-priority patent/US3894793A/en
Priority claimed from US513004A external-priority patent/US3894794A/en
Application filed by Xerox Corp filed Critical Xerox Corp
Publication of GB1522315A publication Critical patent/GB1522315A/en
Expired legal-status Critical Current

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
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/36—Steroidal liquid crystal compounds
    • 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
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133703—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by introducing organic surfactant additives into the liquid crystal material
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
    • 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
    • G02F1/13743—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 based on electrohydrodynamic instabilities or domain formation in liquid crystals
    • G02F1/1375—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 based on electrohydrodynamic instabilities or domain formation in liquid crystals using dynamic scattering
    • 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
    • G02F1/133374—Constructional arrangements; Manufacturing methods for displaying permanent signs or marks

Landscapes

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

Abstract

1522315 Modulating light XEROX CORP 3 Oct 1975 [7 Oct 1974 (2)] 40527/75 Heading G2F [Also in Division C4] A nematic liquid crystalline material is homeotropically aligned by placing the nematic liquid crystalline material 30 Fig. 2, in contact with either bis (tri-n-butyltin) oxide or tri-n-butyltin chloride on a substrate 31. The molecules 33 of the liquid crystalline material then align themselves with their major axes normal to the plane of the substrate. The aligning agent, consisting of the bis (tri-nbutyltin) oxide or tri-n-butyltin chloride, may be in the form of a layer or it may be uniformly dispersed in the liquid crystalline material. The liquid crystalline material may be used in an electro-optic cell, the aligning agent extending the lifetime of the cell. In such a cell, the electrodes may be in the form of an image 21, Fig. 9, the liquid crystalline composition filling the void area 20 defined by a spacer 13 separating transparent plates. Alternatively, the spacer may have a cut-out portion 19, Fig. 8, defining the shape of the image and being filled with the liquid crystal composition. Further, the aligning agent may itself be provided as a layer in the shape of the image. In these embodiments, the electric field is applied parallel to the direction on which the major axes of the molecules are aligned, dynamic scattering of the liquid crystalline composition being used. Alternatively, the electric field may be applied in a direction orthogonal to the molecule axes. In a further embodiment, a layer of photo-conductive material such as arsenic triselenide is included between one of the electrodes of the cell and the liquid crystal composition, said photo-conductive material being irradiated with actinic radiation in imagewise configuration. The aligning agent comprises up to 10% and at least 0À1 wt. per cent of the liquid crystal composition. The liquid crystal composition may contain an optically active material, which may be either a non-mesomorphic material or a cholesteric liquid crystalline material, examples of such materials being given in the Specification.
GB40527/75A 1974-10-07 1975-10-03 Liquid crystalline materials Expired GB1522315A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US513003A US3894793A (en) 1974-10-07 1974-10-07 Liquid crystal imaging system using tributyltin oxide or tributyltin chloride
US513004A US3894794A (en) 1974-10-07 1974-10-07 Liquid crystal imaging system using tribulyltin oxide

Publications (1)

Publication Number Publication Date
GB1522315A true GB1522315A (en) 1978-08-23

Family

ID=27057722

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40527/75A Expired GB1522315A (en) 1974-10-07 1975-10-03 Liquid crystalline materials

Country Status (4)

Country Link
DE (1) DE2543843A1 (en)
FR (1) FR2287708A1 (en)
GB (1) GB1522315A (en)
NL (1) NL7511772A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2527888A1 (en) * 2001-01-29 2012-11-28 Rolic AG Optical device and method for manufacturing same

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4606611A (en) * 1981-09-16 1986-08-19 Manchester R & D Partnership Enhanced scattering in voltage sensitive encapsulated liquid crystal
US4810063A (en) * 1981-09-16 1989-03-07 Manchester R & D Partnership Enhanced scattering voltage sensitive encapsulated liquid crystal with light directing and interference layer features
EP0260455B1 (en) * 1983-03-21 1995-01-11 MANCHESTER R & D LIMITED PARTNERSHIP Enhanced scattering in voltage sensitive encapsulated liquid crystal
US4591233A (en) * 1983-03-21 1986-05-27 Manchester R & D Partnership Enhanced scattering in voltage sensitive encapsulated liquid crystal with spaced apart absorber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2527888A1 (en) * 2001-01-29 2012-11-28 Rolic AG Optical device and method for manufacturing same

Also Published As

Publication number Publication date
NL7511772A (en) 1976-04-09
FR2287708A1 (en) 1976-05-07
DE2543843A1 (en) 1976-04-15

Similar Documents

Publication Publication Date Title
JPS54134452A (en) Quest-host type liquid crystal display device
GB1372868A (en) Optical device
ES454817A1 (en) Method for preparing and operating a smectic liquid crystal display cell having indefinite storage properties
DE3765797D1 (en) DISPLAY CELL.
GB1522315A (en) Liquid crystalline materials
CH642216B (en) LIQUID CRYSTAL DISPLAY DEVICE.
JPS56162722A (en) Liquid crystal display device
JPS5584914A (en) Liquid crystal display device
JPS54141150A (en) Liquid crystal display device
JPS56111836A (en) Liquid-crystal display element
JPS57136627A (en) Electrooptic display element
JPH05188354A (en) Display device
JPS5754927A (en) Liquid crystal display device
JPS57201218A (en) Liquid crystal display device
GB2113243A (en) Nematic liquid crystal mixture containing a hexadecylpyridinium salt
JPH01247482A (en) Liquid crystal composition
JPS5840169B2 (en) exiyouhiyoujisouchi
GB2004104A (en) Liquid crystal display device
JPS5824765B2 (en) display device
JPS569721A (en) Liquid crystal display device
GB1383047A (en) Liquid crystal display devices
JPS57133438A (en) Liquid crystal display device
JPS5690880A (en) Liquid crystal composition
JPS57204516A (en) Liquid crystal display body
CH639811B (en) LIQUID CRYSTAL DISPLAY CELL.

Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee