GB1161039A - A Visual Display Device - Google Patents

A Visual Display Device

Info

Publication number
GB1161039A
GB1161039A GB3495/68A GB349568A GB1161039A GB 1161039 A GB1161039 A GB 1161039A GB 3495/68 A GB3495/68 A GB 3495/68A GB 349568 A GB349568 A GB 349568A GB 1161039 A GB1161039 A GB 1161039A
Authority
GB
United Kingdom
Prior art keywords
film
droplets
liquid
disposed
temperature range
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
GB3495/68A
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.)
NCR Voyix Corp
National Cash Register Co
Original Assignee
NCR Corp
National Cash Register Co
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 NCR Corp, National Cash Register Co filed Critical NCR Corp
Publication of GB1161039A publication Critical patent/GB1161039A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G02F1/132—Thermal activation of liquid crystals exhibiting a thermo-optic effect
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B41M5/28—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat- decomposable compounds, e.g. gas- liberating
    • B41M5/281—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat- decomposable compounds, e.g. gas- liberating using liquid crystals only
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/12—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance
    • G01K11/16—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance of organic materials
    • G01K11/165—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance of organic materials of organic liquid crystals
    • 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
    • C09K2219/00—Aspects relating to the form of the liquid crystal [LC] material, or by the technical area in which LC material are used
    • C09K2219/13—Aspects relating to the form of the liquid crystal [LC] material, or by the technical area in which LC material are used used in the technical field of thermotropic switches

Abstract

1,161,039. Temperature indicators. NATIONAL CASH REGISTER CO. Jan. 23, 1968 [Feb.27, 1967], No.3495/68. Heading G1D. [Also in Division H4] A temperature indicator comprises a continuous film 12 of polymeric material having dispersed therein droplets 11 of a liquid capable of assuming a cholesteric mesophase in a predetermined temperature range, and thereby exhibiting a colour change in the light reflected from the droplets. The droplets are preferably of between 5 to 25 microns in size and the liquid preferably comprises a cholestrol derivative, e.g. cholesteryl carbonate or cholesteryl nonanoate, the composition of the liquid being varied to vary the temperature range in which the spectral colour change occurs. The liquids also exhibit irridescence in the associated temperature range. The film 12 preferably comprises polyvinyl alcohol or a polyacrylate material. Other examples of materials for use in the liquid or as the film 12 are given in the Specification. The film 12 may be disposed on a substrate 10 which may be opaque e.g. black, or a coloured layer 13 may be interposed between the substrate and the film 10. The droplets 11 may be disposed as a single layer in the film 12 or may provide a number of layers. Droplets having different colourchange ranges may be disposed in the one film 12.
GB3495/68A 1967-02-27 1968-01-23 A Visual Display Device Expired GB1161039A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US61889567A 1967-02-27 1967-02-27

Publications (1)

Publication Number Publication Date
GB1161039A true GB1161039A (en) 1969-08-13

Family

ID=24479579

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3495/68A Expired GB1161039A (en) 1967-02-27 1968-01-23 A Visual Display Device

Country Status (7)

Country Link
JP (1) JPS5245673B1 (en)
CA (1) CA940699A (en)
CH (1) CH486089A (en)
DE (1) DE1698092C3 (en)
FR (1) FR1572257A (en)
GB (1) GB1161039A (en)
SE (1) SE350125B (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3656909A (en) * 1970-02-16 1972-04-18 Westinghouse Electric Corp Cholesteric liquid crystal stabilizers for detector elements
JPS5019503Y1 (en) * 1970-09-28 1975-06-13
DE2459618A1 (en) 1973-12-17 1975-07-03 Parker Research Robert PRINTING INKS MADE FROM WATER-BASED CHOLESTERIC LIQUID CRYSTALS AND LAMINATES MANUFACTURED WITH IT
US3969264A (en) * 1973-12-17 1976-07-13 Rpr, Inc. Cholesteric liquid crystal water base ink
GB2116578A (en) * 1982-03-11 1983-09-28 Cinzia Ruggeri Textile material coated with liquid crystals
US4707080A (en) * 1981-09-16 1987-11-17 Manchester R & D Partnership Encapsulated liquid crystal material, apparatus and method
US4743557A (en) * 1982-07-02 1988-05-10 Tiru Maj Britt I Composition having regulated occurence of opacity and clarity at selected temperatures and method of making the same and also use of the composition
US4884873A (en) * 1981-09-16 1989-12-05 Manchester R & D Partnership Encapsulated liquid crystal material, apparatus and method having interconnected capsules
US5082351A (en) * 1981-09-16 1992-01-21 Manchester R & D Partnership Encapsulated liquid crystal material, apparatus and method
US5089904A (en) * 1981-09-16 1992-02-18 Fergason James L Encapsulated liquid crystal material, apparatus and method
US5453863A (en) * 1991-05-02 1995-09-26 Kent State University Multistable chiral nematic displays
US5668614A (en) * 1995-05-01 1997-09-16 Kent State University Pixelized liquid crystal display materials including chiral material adopted to change its chirality upon photo-irradiation
US5691795A (en) * 1991-05-02 1997-11-25 Kent State University Polymer stabilized liquid crystalline light modulating device and material
US5695682A (en) * 1991-05-02 1997-12-09 Kent State University Liquid crystalline light modulating device and material
US5847798A (en) * 1991-05-02 1998-12-08 Kent State University Polymer stabilized black-white cholesteric reflective display

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH582352A5 (en) * 1974-08-14 1976-11-30 Visioterm Applic Sa
GB1597388A (en) * 1977-01-21 1981-09-09 Cellograf Simp Spa Multilayered structure incorporating a thermometer
JPS6057983U (en) * 1983-08-24 1985-04-23 フマキラ−株式会社 cockroach trap
US4728547A (en) * 1985-06-10 1988-03-01 General Motors Corporation Liquid crystal droplets dispersed in thin films of UV-curable polymers
US4891152A (en) * 1987-12-28 1990-01-02 Hughes Aircraft Company Dispersion of liquid crystal droplets in a photopolymerized matrix and devices made therefrom

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3656909A (en) * 1970-02-16 1972-04-18 Westinghouse Electric Corp Cholesteric liquid crystal stabilizers for detector elements
JPS5019503Y1 (en) * 1970-09-28 1975-06-13
DE2459618A1 (en) 1973-12-17 1975-07-03 Parker Research Robert PRINTING INKS MADE FROM WATER-BASED CHOLESTERIC LIQUID CRYSTALS AND LAMINATES MANUFACTURED WITH IT
US3969264A (en) * 1973-12-17 1976-07-13 Rpr, Inc. Cholesteric liquid crystal water base ink
US4022706A (en) * 1973-12-17 1977-05-10 Robert Parker Research, Inc. Cholesteric liquid crystal water base ink and laminates formed therefrom
DE2463437A1 (en) * 1973-12-17 1985-07-04
US5089904A (en) * 1981-09-16 1992-02-18 Fergason James L Encapsulated liquid crystal material, apparatus and method
US4707080A (en) * 1981-09-16 1987-11-17 Manchester R & D Partnership Encapsulated liquid crystal material, apparatus and method
US4884873A (en) * 1981-09-16 1989-12-05 Manchester R & D Partnership Encapsulated liquid crystal material, apparatus and method having interconnected capsules
US5082351A (en) * 1981-09-16 1992-01-21 Manchester R & D Partnership Encapsulated liquid crystal material, apparatus and method
GB2116578A (en) * 1982-03-11 1983-09-28 Cinzia Ruggeri Textile material coated with liquid crystals
US4743557A (en) * 1982-07-02 1988-05-10 Tiru Maj Britt I Composition having regulated occurence of opacity and clarity at selected temperatures and method of making the same and also use of the composition
US5453863A (en) * 1991-05-02 1995-09-26 Kent State University Multistable chiral nematic displays
US5691795A (en) * 1991-05-02 1997-11-25 Kent State University Polymer stabilized liquid crystalline light modulating device and material
US5695682A (en) * 1991-05-02 1997-12-09 Kent State University Liquid crystalline light modulating device and material
US5847798A (en) * 1991-05-02 1998-12-08 Kent State University Polymer stabilized black-white cholesteric reflective display
US5668614A (en) * 1995-05-01 1997-09-16 Kent State University Pixelized liquid crystal display materials including chiral material adopted to change its chirality upon photo-irradiation

Also Published As

Publication number Publication date
DE1698092C3 (en) 1974-02-21
JPS5245673B1 (en) 1977-11-17
CA940699A (en) 1974-01-29
CH486089A (en) 1970-02-15
DE1698092B2 (en) 1973-07-19
DE1698092A1 (en) 1972-07-27
FR1572257A (en) 1969-06-27
SE350125B (en) 1972-10-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
429A Application made for amendment of specification (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years