JPS57133432A - Orienting method for liquid crystal - Google Patents

Orienting method for liquid crystal

Info

Publication number
JPS57133432A
JPS57133432A JP1967781A JP1967781A JPS57133432A JP S57133432 A JPS57133432 A JP S57133432A JP 1967781 A JP1967781 A JP 1967781A JP 1967781 A JP1967781 A JP 1967781A JP S57133432 A JPS57133432 A JP S57133432A
Authority
JP
Japan
Prior art keywords
alkylene
polyamide
film
liquid crystal
electrode plate
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.)
Pending
Application number
JP1967781A
Other languages
Japanese (ja)
Inventor
Katsuhide Tamura
Yuichi Masaki
Tomoyuki Umezawa
Nobuyuki Sekimura
Masaki Kuribayashi
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP1967781A priority Critical patent/JPS57133432A/en
Publication of JPS57133432A publication Critical patent/JPS57133432A/en
Pending 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
    • G02F1/133—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

Abstract

PURPOSE:To improve stability against the heat of orientation and aging by bringing a polyimide film provided on an electrode plate and a liquid crystal having positive dielectric anisotropy into contact. CONSTITUTION:An org. solvent soln. contg. 0.01-40wt% polyamide acid obtd. by the condensation of pyromellitic dianhydride and a diamine compound (e.g.; tetramethylenediamine) is coated on an electrode plate formed by providing conductive films of which at least one is transparent on a substrate and said polyamide acid is cyclo-dehydrated by heating at 100-350 deg.C, whereby the polyamide film of the formula (R is alkylene oxide, alkylene sulfide, >=C4 alkylene, phenylene, and phenylene oxide of >=3 numbers of aromatic ring which may be substituted; (n) is >=100) is formed. Thence, this polyamide film is rubbed in one direction with a cloth or the like whereby it is oriented. Thereby, the yellowing of the orientation film that occurs during long-term use is prevented.
JP1967781A 1981-02-13 1981-02-13 Orienting method for liquid crystal Pending JPS57133432A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1967781A JPS57133432A (en) 1981-02-13 1981-02-13 Orienting method for liquid crystal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1967781A JPS57133432A (en) 1981-02-13 1981-02-13 Orienting method for liquid crystal

Publications (1)

Publication Number Publication Date
JPS57133432A true JPS57133432A (en) 1982-08-18

Family

ID=12005854

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1967781A Pending JPS57133432A (en) 1981-02-13 1981-02-13 Orienting method for liquid crystal

Country Status (1)

Country Link
JP (1) JPS57133432A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5817418A (en) * 1981-07-24 1983-02-01 Toray Ind Inc Liquid crystal display element
EP0160302A2 (en) * 1984-05-01 1985-11-06 Hitachi, Ltd. Ferroelectric liquid crystal cell
US4749777A (en) * 1986-06-18 1988-06-07 Nissan Chemical Industries Ltd. Liquid crystal aligning agent from tetracarboxylic acid dianhydride, diamine and monoamine
JPH01165622A (en) * 1987-12-22 1989-06-29 Kanegafuchi Chem Ind Co Ltd Novel polyimide and its precursor
US5000545A (en) * 1987-05-28 1991-03-19 Canon Kabushiki Kaisha Liquid crystal device with metal electrode partially overlying transparent electrode
EP0645662A1 (en) * 1993-09-28 1995-03-29 Sharp Kabushiki Kaisha A liquid crystal display device
WO2008010528A1 (en) * 2006-07-18 2008-01-24 Nissan Chemical Industries, Ltd. Liquid crystal orienting agent and liquid crystal oriented film and liquid crystal display element using the same
JP2011246726A (en) * 2004-11-01 2011-12-08 Jnc Corp Liquid crystal aligning agent and liquid crystal display element

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5817418A (en) * 1981-07-24 1983-02-01 Toray Ind Inc Liquid crystal display element
JPH0153445B2 (en) * 1981-07-24 1989-11-14 Toray Industries
EP0160302A2 (en) * 1984-05-01 1985-11-06 Hitachi, Ltd. Ferroelectric liquid crystal cell
US4749777A (en) * 1986-06-18 1988-06-07 Nissan Chemical Industries Ltd. Liquid crystal aligning agent from tetracarboxylic acid dianhydride, diamine and monoamine
US5000545A (en) * 1987-05-28 1991-03-19 Canon Kabushiki Kaisha Liquid crystal device with metal electrode partially overlying transparent electrode
US5124826A (en) * 1987-05-28 1992-06-23 Canon Kabushiki Kaisha Liquid crystal device
JPH01165622A (en) * 1987-12-22 1989-06-29 Kanegafuchi Chem Ind Co Ltd Novel polyimide and its precursor
EP0645662A1 (en) * 1993-09-28 1995-03-29 Sharp Kabushiki Kaisha A liquid crystal display device
JP2011246726A (en) * 2004-11-01 2011-12-08 Jnc Corp Liquid crystal aligning agent and liquid crystal display element
WO2008010528A1 (en) * 2006-07-18 2008-01-24 Nissan Chemical Industries, Ltd. Liquid crystal orienting agent and liquid crystal oriented film and liquid crystal display element using the same
JP5428336B2 (en) * 2006-07-18 2014-02-26 日産化学工業株式会社 Coating liquid, liquid crystal alignment film and liquid crystal display element using the same

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