JPS5779915A - Formation of liquid crystal orientation film - Google Patents

Formation of liquid crystal orientation film

Info

Publication number
JPS5779915A
JPS5779915A JP15578480A JP15578480A JPS5779915A JP S5779915 A JPS5779915 A JP S5779915A JP 15578480 A JP15578480 A JP 15578480A JP 15578480 A JP15578480 A JP 15578480A JP S5779915 A JPS5779915 A JP S5779915A
Authority
JP
Japan
Prior art keywords
alkyl
orientation film
coupling agent
silane coupling
expressed
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.)
Granted
Application number
JP15578480A
Other languages
Japanese (ja)
Other versions
JPS6262328B2 (en
Inventor
Takeshi Watanabe
Ryoichi Sudo
Fusaji Shoji
Kenkichi Suzuki
Michio Ogami
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP15578480A priority Critical patent/JPS5779915A/en
Priority to US06/274,680 priority patent/US4437731A/en
Publication of JPS5779915A publication Critical patent/JPS5779915A/en
Publication of JPS6262328B2 publication Critical patent/JPS6262328B2/ja
Granted 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
    • G02F1/133719—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films with coupling agent molecules, e.g. silane
    • 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
    • C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
    • C09K19/46—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40 containing esters
    • 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
    • C09K19/56—Aligning agents
    • 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
    • C09K19/60—Pleochroic dyes
    • C09K19/603—Anthroquinonic

Landscapes

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

Abstract

PURPOSE:To obtain a good vertical orientation film of a long life by using the coating soln. prepd. by dissolving a mixture of a silane coupling agent having long chain alkyl groups and tetraalkoxy titanium or its polymer in a >=C8 hydrocarbon type higher alcohol. CONSTITUTION:The silane coupling agent expressed by the formula I or II (R1 is C10-24 normal alkyl, R2 is C1-4 alkyl, R3 is C1-4 alkyl, aryl) and the tetraalkoxy titanium expressed by the formula III or IV (R4 is C1-10 alkyl, n is 0-10) are dissolved in the higher alcohol expressed by the formula V (m is 8-20,k is 0-m). The ratios of the silane coupling agent and the tetraalkoxy titanium is good if Ti/Si is within a 0.1-10 range, and the concn. of the sum of both is kept at around 20wt%. Orientation films are formed by using the coating soln. prepd. by thickening said soln. by adding about 0.5wt% hydroxypropylcellulose and further adding a polydimethyl siloxane of >=350 deg.C b.p. for the purpose of improving the smoothness of the coating film. Thereby, the superior vertical orientation film is formed.
JP15578480A 1980-06-18 1980-11-07 Formation of liquid crystal orientation film Granted JPS5779915A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP15578480A JPS5779915A (en) 1980-11-07 1980-11-07 Formation of liquid crystal orientation film
US06/274,680 US4437731A (en) 1980-06-18 1981-06-17 Liquid crystal display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15578480A JPS5779915A (en) 1980-11-07 1980-11-07 Formation of liquid crystal orientation film

Publications (2)

Publication Number Publication Date
JPS5779915A true JPS5779915A (en) 1982-05-19
JPS6262328B2 JPS6262328B2 (en) 1987-12-25

Family

ID=15613334

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15578480A Granted JPS5779915A (en) 1980-06-18 1980-11-07 Formation of liquid crystal orientation film

Country Status (1)

Country Link
JP (1) JPS5779915A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5468519A (en) * 1992-12-11 1995-11-21 Sharp Kabushiki Kaisha Method for forming an orientation film including coupling an organic compound to a silane coupling agent in a magnetic or electrical field
US5503932A (en) * 1993-11-17 1996-04-02 Nippon Shokubai Co., Ltd. Organic-inorganic composite particles and production process therefor
US5670257A (en) * 1994-11-15 1997-09-23 Nippon Shokubai Co., Ltd. Organic-inorganic composite particles and production process therefor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5468519A (en) * 1992-12-11 1995-11-21 Sharp Kabushiki Kaisha Method for forming an orientation film including coupling an organic compound to a silane coupling agent in a magnetic or electrical field
US5503932A (en) * 1993-11-17 1996-04-02 Nippon Shokubai Co., Ltd. Organic-inorganic composite particles and production process therefor
US5580619A (en) * 1993-11-17 1996-12-03 Nippon Shokubai Co., Ltd. Organic-inorganic composite particles and production process therefor
US5670257A (en) * 1994-11-15 1997-09-23 Nippon Shokubai Co., Ltd. Organic-inorganic composite particles and production process therefor

Also Published As

Publication number Publication date
JPS6262328B2 (en) 1987-12-25

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