CH624529GA3 - Process for the production of liquid-crystal cells - Google Patents

Process for the production of liquid-crystal cells Download PDF

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Publication number
CH624529GA3
CH624529GA3 CH251478A CH251478A CH624529GA3 CH 624529G A3 CH624529G A3 CH 624529GA3 CH 251478 A CH251478 A CH 251478A CH 251478 A CH251478 A CH 251478A CH 624529G A3 CH624529G A3 CH 624529GA3
Authority
CH
Switzerland
Prior art keywords
liquid
gel
production
film
crystal cells
Prior art date
Application number
CH251478A
Other versions
CH624529B (en
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
Publication of CH624529B publication Critical patent/CH624529B/en
Application filed filed Critical
Publication of CH624529GA3 publication Critical patent/CH624529GA3/en

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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
    • G02F1/133—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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Liquid Crystal (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Polarising Elements (AREA)
  • Liquid Crystal Substances (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

The moulds for homogeneous alignment of the liquid crystal and for the polarisation filters are produced simultaneously. To this end, a gel (3) of a dichroic dye having a concentration of from 1 to 30 % by weight is applied to the surface of plates (1) intended for contact with the liquid crystal. The gel (3) is then subjected to mechanical treatment to produce a film (4) from the gel (3), a speed gradient of from 10<2> to 10<7> s<-1> being maintained according to the thickness of the film to be produced, after which the solvent is removed from the film (4). The process is preferably intended for the production of liquid-crystal cells for watches and pocket calculators. <IMAGE>
CH251478A 1977-03-09 1978-03-08 Process for the production of liquid-crystal cells CH624529GA3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU772460057A SU697950A1 (en) 1977-03-09 1977-03-09 Method of manufacturing liquid crystal-based devices

Publications (2)

Publication Number Publication Date
CH624529B CH624529B (en)
CH624529GA3 true CH624529GA3 (en) 1981-08-14

Family

ID=20698453

Family Applications (1)

Application Number Title Priority Date Filing Date
CH251478A CH624529GA3 (en) 1977-03-09 1978-03-08 Process for the production of liquid-crystal cells

Country Status (6)

Country Link
JP (1) JPS5439146A (en)
CH (1) CH624529GA3 (en)
DE (1) DE2809335C2 (en)
FR (1) FR2383494A1 (en)
NL (1) NL178629C (en)
SU (1) SU697950A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3027571C2 (en) * 1980-07-21 1985-03-07 Siemens AG, 1000 Berlin und 8000 München Liquid crystal display with an orienting and polarizing layer
GB2109123B (en) * 1981-09-14 1986-03-19 Sharp Kk Colour liquid crystal display devices
JPS6026303A (en) * 1983-07-22 1985-02-09 Alps Electric Co Ltd Production of liquid crystal display device
DE3727945A1 (en) * 1986-08-22 1988-02-25 Ricoh Kk LIQUID CRYSTAL ELEMENT
DE3837828A1 (en) * 1988-11-08 1990-05-10 Nokia Unterhaltungselektronik METHOD AND DEVICE FOR COATING A SUBSTRATE PLATE FOR A FLAT DISPLAY SCREEN
DE3837827A1 (en) * 1988-11-08 1990-05-10 Nokia Unterhaltungselektronik METHOD AND DEVICE FOR COATING A SUBSTRATE PLATE FOR A FLAT DISPLAY SCREEN
DE3904126A1 (en) * 1989-02-11 1990-08-16 Nokia Unterhaltungselektronik METHOD AND DEVICE FOR PRODUCING LIQUID CRYSTAL CELLS
RU2155978C2 (en) * 1998-10-28 2000-09-10 ОПТИВА, Инк. Dichroic polarizer and method for its manufacturing
US7015990B2 (en) 2000-04-24 2006-03-21 Nitto Denko Corporation Liquid crystal display including O-type and E-type polarizer
US6630289B1 (en) 2000-08-22 2003-10-07 The Hong Kong University Of Science And Technology Photo-patterned light polarizing films
JP2005284260A (en) * 2004-03-02 2005-10-13 Mitsubishi Chemicals Corp Anisotropic organic film, method for producing the same, polarizing film and polarizing element
EP1843198A1 (en) * 2006-03-03 2007-10-10 Université Laval Method and apparatus for spatially modulated electric field generation and electro-optical tuning using liquid crystals

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1873951A (en) * 1925-11-10 1932-08-30 Gen Electric Polarizers of light and a method of preparation
DE747882C (en) * 1938-09-09 1944-10-18 Dr Med Rudolf Degkwitz Process for producing non-monocrystalline, polarizing surfaces
DE2202555A1 (en) * 1971-02-09 1972-08-31 Int Liquid Xtal Co Liquid-crystalline, non-linear light modulators in which electric and magnetic fields are used
FR2261549A1 (en) * 1974-02-15 1975-09-12 Hoffmann La Roche
JPS5222898A (en) * 1975-08-14 1977-02-21 Toppan Printing Co Ltd Liquid crystal display unit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3731986A (en) * 1971-04-22 1973-05-08 Int Liquid Xtal Co Display devices utilizing liquid crystal light modulation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1873951A (en) * 1925-11-10 1932-08-30 Gen Electric Polarizers of light and a method of preparation
DE747882C (en) * 1938-09-09 1944-10-18 Dr Med Rudolf Degkwitz Process for producing non-monocrystalline, polarizing surfaces
DE2202555A1 (en) * 1971-02-09 1972-08-31 Int Liquid Xtal Co Liquid-crystalline, non-linear light modulators in which electric and magnetic fields are used
FR2261549A1 (en) * 1974-02-15 1975-09-12 Hoffmann La Roche
JPS5222898A (en) * 1975-08-14 1977-02-21 Toppan Printing Co Ltd Liquid crystal display unit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 1, no. 86, 11 August 1977, Seite 1999E77, & JP - A - 52 022898 (TOPPAN INSATSU K.K.) (21-2-1977) *

Also Published As

Publication number Publication date
NL178629B (en) 1985-11-18
FR2383494B1 (en) 1981-11-20
NL7802569A (en) 1978-09-12
DE2809335A1 (en) 1978-09-21
FR2383494A1 (en) 1978-10-06
DE2809335C2 (en) 1985-02-21
JPS6232459B2 (en) 1987-07-15
SU697950A1 (en) 1979-11-15
NL178629C (en) 1986-04-16
JPS5439146A (en) 1979-03-26
CH624529B (en)

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