WO2000047403A1 - Minces films organiques, procede de production de ceux-ci et equipement prevu a cet effet; couches d'alignement pour cristaux liquides, procede de production de ceux-ci et equipement prevu a cet effet;et ecrans d'affichage a cristaux liquides fabriques a l'aide de ces couches d'alignement et procede de production de ceux-c - Google Patents
Minces films organiques, procede de production de ceux-ci et equipement prevu a cet effet; couches d'alignement pour cristaux liquides, procede de production de ceux-ci et equipement prevu a cet effet;et ecrans d'affichage a cristaux liquides fabriques a l'aide de ces couches d'alignement et procede de production de ceux-c Download PDFInfo
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- WO2000047403A1 WO2000047403A1 PCT/JP2000/000776 JP0000776W WO0047403A1 WO 2000047403 A1 WO2000047403 A1 WO 2000047403A1 JP 0000776 W JP0000776 W JP 0000776W WO 0047403 A1 WO0047403 A1 WO 0047403A1
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- group
- liquid crystal
- substrate
- molecules
- film
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/18—Processes for applying liquids or other fluent materials performed by dipping
- B05D1/185—Processes for applying liquids or other fluent materials performed by dipping applying monomolecular layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
- C03C17/30—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material with silicon-containing compounds
-
- 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
Definitions
- the present invention relates to an organic thin film formed on the surface of a substrate such as glass and ceramics, a method for producing the same, and a production apparatus therefor. Also, a liquid crystal alignment film having alignment capability for liquid crystal, a method of manufacturing the same, and a manufacturing apparatus therefor; and a liquid crystal display device including the liquid crystal alignment film, and a method of manufacturing the same. It is related to.
- a method for producing an organic thin film for example, a method of chemically adsorbing a chlorosilane-based surfactant or the like to a substrate surface is known.
- a method of chemically adsorbing a chlorosilane-based surfactant or the like to a substrate surface is known.
- Japanese Patent Application Laid-open No. Hei 3-71913 Japanese Patent Application Laid-Open No. Hei 3-230156
- Japanese Patent Application Laid-open No. Hei 4-330925 Japanese Patent Nos. 2,028,662, 2,598,867 and 2,638,446.
- a film-forming molecule is placed on a substrate surface. After the adsorption and immobilization, a cleaning process is performed to remove unadsorbed molecules.However, the proper degree of cleaning in this cleaning process results in an ultra-thin film. It becomes possible to form a monomolecular film.
- black mouth homes are known to be highly toxic. It is also known as a cause of destruction of the ozone layer, and is a substance with a very large environmental load.
- the group of the present invention has been made to solve such problems of the prior art, and the first goal is to remove with a cleaning agent other than a chlorinated solvent.
- a cleaning agent other than a chlorinated solvent is there .
- the group of the present invention has been made to solve such problems of the prior art, and the second purpose is to use cleaning agents other than chlorinated solvents.
- To provide a method for producing a liquid crystal orientation film including a removal step of removing the liquid crystal orientation film, a liquid crystal orientation film formed by the method, and a production apparatus used in the method. It is here.
- a third object is to provide a liquid crystal display device provided with the liquid crystal directing film, and a method for manufacturing the same.
- the organic thin film according to the present invention is an organic thin film composed of a group of molecules bonded on a substrate, and the organic thin film contains active hydrogen. After a group of molecules having a functional group exhibiting reactivity to the provided functional group is brought into contact with the base material surface and bonded thereto, it is not bonded to the base material.
- the group of molecules is at least selected from the group consisting of ketones, alkyl alcohols, and alkoxy alcohols. It is characterized by being obtained by removal with a detergent containing one kind.
- the organic thin film having the above-described configuration is composed of molecules arranged along the substrate surface with one end bonded to the substrate surface and the other end protruding in a direction away from the substrate surface. Become .
- the organic thin film from which molecules that are not bonded to the substrate (hereinafter, sometimes referred to as unfixed molecules) are removed by the above-mentioned cleaning agent is a group of molecules. The film is not disturbed on the substrate surface, and a uniform film structure can be obtained.
- the functional group exhibiting reactivity with the functional group having active hydrogen is one kind of functional group selected from the functional group group represented by the following general formula (1). be able to .
- A represents one kind of atom selected from the group consisting of silicon, germanium, soot, titanium and zirconium, and X represents nitrogen. It represents one type of functional group selected from gen, alkoxy group, and isocyanate group.
- the term “on the substrate” is not limited to the case where the above-mentioned molecule group is directly fixed to the surface of the substrate, but is fixed via another substance layer. This also includes the case.
- a method for producing an organic thin film according to the present invention comprises a method of preparing a molecular group having a functional group that is reactive with a functional group having active hydrogen. By being brought into contact with the base material, it is bound on the base material and A film forming step of forming a film composed of a group of particles, and the above-mentioned molecules which are not bonded to the above-mentioned base material are converted into ketones, alkylene glycols and alcohols. And a removing step of removing with at least one kind of cleaning agent selected from the group consisting of the callals.
- the above molecule can have one kind of functional group selected from the group of functional groups represented by the following general formula (1).
- A represents one type of atom selected from the group consisting of silicon, germanium, soot, titanium, and zirconium, and X represents no, b, and b. It represents one type of functional group selected from gen, alkoxy group, and isocyanate group.
- a group of molecules having one kind of functional group selected from the group of functional groups represented by the above general formula (1) is fixed to the surface of the substrate to form a film.
- molecules that are not bonded to the substrate remain on the surface of the coating.
- These unfixed molecules are selected from the group consisting of ketones, alkylene glycols and alkoxy alcohols during the removal step. Both of them can be easily removed by using a cleaning agent containing one kind. This is due to the fact that ketones and the like have excellent solubility in unfixed molecules.
- an organic thin film comprising at least the above-mentioned molecule group immobilized on the substrate is formed on the surface of the substrate, and an organic thin film having a similar thickness is formed. Production becomes possible.
- the ketones include, for example, acetate, methylethylketone, methylketone, methylisobutylketone and acetylacetone. At least one compound selected from the group consisting of tones can be used. These compounds have excellent solubility in a molecule group having one kind of functional S selected from the functional groups represented by the general formula (1). Therefore, according to the above-mentioned method using the above-mentioned compounds having excellent detergency, the most appropriate ketones are selected as necessary in consideration of the types of the above-mentioned molecules and the washing conditions. By doing so, it is possible to form an organic thin film having a uniform thickness from which unfixed molecules have been removed.
- Polyethylene glycol may be used as the above-mentioned alkyl alcohol.
- the polyethylene glycol has a solubility in a compound having one kind of functional group selected from the functional groups represented by the general formula (1). Are better . Therefore, according to the above-mentioned method using a polyethylene glycol having excellent detergency, the removal of the unfixed molecules is further facilitated, and the unfixed molecules are removed. The removed organic thin film can be formed.
- the molecular weight of the above poly-ethylene glycol can be in the range of 100 or more and 300 or less.
- low-molecular-weight polyethylene glycol is used as a detergent component, so that the detergent has low viscosity and is easy to handle. be able to .
- a cleaning agent which does not contain a chlorine-based solvent can be used.
- a small amount selected from the group consisting of ketones, alkylene glycols, and alkoxy alcohols is a type of cleaning agent, and can reduce the burden on the environment.
- this cleaning agent exerts the same level of cleaning action as that of a conventional cleaning agent made of a chlorine-based solvent on the object to be cleaned, that is, on unfixed molecules.
- a detergent removing step of removing the detergent adhered to the base material can be performed.
- the cleaning film is formed as a functional film having a function such as water repellency or hydrophilicity, deterioration of various functions can be prevented by performing the above-described cleaning agent removing step.
- the cleaning agent removing step includes a rinsing step of rinsing the cleaning agent attached to the base material with water and a drying step of drying the water attached to the base material. It may be.
- the above-mentioned cleaning agent adhering to the film formed on the surface of the base material can be removed by washing with water.
- a condensation reaction is caused between the AX group remaining in the coating and water to form the coating.
- Hydroxy groups can be introduced into any molecule.
- drying the substrate in the drying step water adhering to the substrate can be removed.
- this drying step there is also a surface that promotes a dehydration reaction between molecules bonded to the substrate surface, and as a result, a crosslinked structure can be formed.
- a base material having a functional group having active hydrogen on its surface can be used.
- the molecule is a functional group represented by the general formula (1).
- the HX molecule has a hydrogen atom
- the HX molecule is desorbed between the functional group and the functional group having active hydrogen on the surface of the base material to cause a condensation reaction. And can be done.
- the molecule having the functional group represented by the general formula (1) can be bonded to the surface of the substrate.
- the film forming step and the removing step can be performed in a dry atmosphere.
- a monomolecular film is formed on the surface of the base material, and a monomolecular film-like molecular layer is further formed on the monomolecular film.
- An accumulated film is formed in many layers. This is because it is in a dry atmosphere, so that the moisture in the atmosphere and the functional group represented by the above general formula (1) are prevented from reacting and cross-linking.
- the film thus formed is also subjected to a removing step in a dry atmosphere, so that all of the above-mentioned accumulated films or some of the molecules of the accumulated films are removed. The layer can be easily removed.
- a group of molecules having one kind of functional group selected from the group of functional groups represented by the general formula (1) is fixed on the surface of the base material so as to form a monomolecular film. It is possible to form such a defined organic thin film.
- a monomolecular organic thin film can be formed. Therefore, the molecular design of a molecule having a functional group represented by the general formula (1) can be controlled. This makes it easy to control the film thickness at the molecular level It becomes. As a result, an extremely thin organic thin film can be manufactured with a desired film thickness.
- an apparatus for producing an organic thin film according to the present invention employs a molecular group having a functional group that is reactive to a functional group having active hydrogen.
- the molecule can have one kind of functional group selected from the group of functional groups represented by the following general formula (1).
- A represents one type of atom selected from the group consisting of silicon, germanium, soot, titanium and zirconium, and X represents nitrogen.
- X represents one type of functional group selected from gen, alkoxy group, and lithocyanate group.
- Liquid crystal alignment film [Liquid crystal alignment film, method for manufacturing the same, and apparatus for manufacturing the same] (1) Liquid crystal alignment film
- a liquid crystal alignment film according to the present invention is composed of a group of molecules bonded on a substrate, and aligns the liquid crystal molecules in a specific direction. Therefore, the liquid crystal orientation film contacts a group of molecules having a functional group that is reactive to a functional group having active hydrogen with the substrate surface. After binding, the molecules that are not bound to the substrate are removed from ketones, alkylene glycols and alcoholic alcohols. It is characterized in that it is obtained by removing with at least one kind of cleaning agent selected from a group.
- the liquid crystal alignment film having the above-described configuration is composed of a group of molecules arranged along the substrate surface with one end bonded to the substrate side and the other end protruding in a direction away from the substrate. Since the thin film is cleaned using the above-mentioned cleaning agent, unfixed molecules that are not bonded to the substrate are removed, and the film has a uniform thickness.
- liquid crystal alignment film having the above structure is a monomolecular film
- nearby liquid crystal molecules have a certain tilt and / or alignment direction with respect to the substrate due to the interaction with the film constituent molecules. It is regulated.
- a well-ordered membrane structure in which individual molecules are uniformly arranged has an excellent directing ability, and specifically, does not disturb the arrangement state. It becomes possible to orient liquid crystal molecules.
- on the substrate is not limited to the case where the molecules are directly bonded to the substrate surface, but the case where the molecules are bonded via another material layer such as an electrode. It is also meant to include.
- the functional group exhibiting reactivity with the functional group having active hydrogen is one kind of functional group selected from the group of functional groups represented by the following general formula (1). It can be done.
- A represents one kind of atom selected from the group consisting of silicon, germanium, soot, titanium and zirconium, and X represents It represents one type of functional group selected from the group consisting of a logene, an alkoxy group and an isocyanate group.
- a method for producing a liquid crystal orientation film according to the present invention comprises a molecule group having a functional group showing a reactivity with a functional group having active hydrogen. Contacting the base material with the base material to form a coating made of the molecule group by bonding the base material to the base material, and not bonding the base material to the base material.
- the molecule includes at least one selected from the group consisting of ketones, alkyl alcohols, and alkoxy alcohols. And a removing step for removing with a detergent.
- the molecule can have one kind of functional group selected from the group of functional groups represented by the following general formula (1).
- A represents one kind of atom selected from the group consisting of silicon, germanium, soot, titanium, and zirconia, and X represents nitrogen. It represents one type of functional group selected from gen, alkoxy group, and isocyanate group.
- the functional group represented by the above general formula (1) is used.
- a group of molecules having one selected functional group is fixed to a substrate surface to form a film
- unfixed molecules remain on the surface of the film. Since ketones and the like exhibit excellent solubility for these unfixed molecules, they can be easily removed by washing with the above-mentioned detergent. it can . Therefore, it is possible to form at least a liquid crystal alignment film comprising the above-mentioned molecule group fixed on the substrate surface while suppressing the load on the environment on the substrate surface. . Further, the liquid crystal alignment film formed by the above method can have a uniform film thickness and can be fixed without disturbing the molecular groups to form a uniform film structure. .
- an apparatus for producing a liquid crystal alignment film comprises a substrate comprising a group of molecules having a functional group having a reactivity with a functional group having active hydrogen.
- the molecule is selected from a group of functional groups represented by the following general formula (1)
- ⁇ is selected from the group consisting of silicon, germanium, soot, titanium and zirconium1 Represents a kind of atom, and X represents one kind of functional group selected from a nitrogen, an alkoxy group, and an isocyanate group.
- a liquid crystal display device includes a liquid crystal display film provided with a liquid crystal orientation film for orienting liquid crystal molecules on a substrate in a predetermined direction. Therefore, the liquid crystal orientation film is a thin film in which a group of molecules having a functional group that is reactive to a functional group having active hydrogen is bonded to the substrate. And after bringing the group consisting of the above molecules into contact with the above-mentioned substrate and binding them, the above-mentioned molecules that are not bound to the above-mentioned substrate are replaced with ketones or alkylenes. It is obtained by removing with a cleaning agent containing at least one selected from the group consisting of alcohols and alcoholic alcohols. This is the feature.
- the liquid crystal alignment film included in the liquid crystal display device having the above configuration is a thin film that has been cleaned using the above-described cleaning agent, molecules that are not bonded to the substrate are removed, and the liquid crystal alignment film is uniformly formed. It has an appropriate film thickness. Further, since the liquid crystal alignment film is not a thin film washed with a conventional cleaning agent made of a chlorine-based solvent, it has a film structure in which the molecular groups are uniformly arranged and arranged. . Thus, the liquid crystal molecules can be aligned without disturbing the alignment state. In other words, by providing the liquid crystal alignment film as described above, the liquid crystal display device having the above-described configuration has excellent display quality without alignment defects of the liquid crystal being visually recognized. And can be done.
- a method for manufacturing a liquid crystal display device comprises a group of molecules bonded on a substrate, and orients the liquid crystal molecules in a specific direction.
- a method of manufacturing a liquid crystal display device provided with a liquid crystal alignment film a molecule group having a functional group showing a reactivity with a functional group having active hydrogen is brought into contact with the substrate. And binds to the substrate surface to form the molecule group.
- a film forming step of forming a film comprising the above, and the above molecules which are not bonded to the above-mentioned base material are treated with ketones, alkylene glycols and alkoxyls.
- a liquid crystal display device having a liquid crystal alignment film having a uniform film thickness and excellent alignment ability can be manufactured.
- the use of the above-mentioned cleaning agents as a substitute for chlorine-based cleaning agents enables the manufacture of liquid crystal display devices with excellent display quality while suppressing the burden on the environment. It becomes possible. Still other objects, features and advantages of the present invention will be more fully understood from the following description. Also, the advantages of the present invention will become apparent in the following description with reference to the accompanying drawings.
- FIG. 1 is a flowchart showing a process of manufacturing an organic thin film according to an embodiment of the present invention.
- FIG. 2 is a flowchart for explaining a first cleaning agent removing method related to a cleaning agent removing step in the above-mentioned organic thin film manufacturing process.
- FIG. 3 is a flowchart for explaining a second cleaning agent removing method relating to a cleaning agent removing step in the above-mentioned organic thin film manufacturing process.
- FIG. 4 is an enlarged view of a main part schematically showing a state in which the organic thin film is adsorbed on a substrate.
- Figure 5 is a cross-sectional view schematically showing the state in which the organic thin film is adsorbed on a substrate.
- Fig. 5 (a) shows the state in which the adsorbed molecules are adsorbed in layers
- Fig. 5 (b) shows the state in which the adsorbed molecules are adsorbed on the substrate while they are entangled.
- FIG. 5 (a) shows the state in which the adsorbed molecules are adsorbed in layers
- Fig. 5 (b) shows the state in which the adsorbed molecules are adsorbed on the substrate while they are entangled.
- FIG. 6 is an enlarged view of a main part schematically showing a state in which the organic thin film is adsorbed on a substrate
- FIG. FIG. 6 (b) is a view showing a state where the adsorbed molecules are cross-linked.
- FIG. 7 is an explanatory view schematically showing an organic thin film production apparatus according to the present invention, and FIG. 7 (a) shows a case where a film forming means and a removing means are closed systems.
- FIG. 7 (b) shows the case of an independent system, and
- FIG. 7 (c) schematically shows the cleaning agent removing means.
- FIG. 8 is a perspective view schematically showing the removing means according to the present invention.
- FIG. 8 (a) shows a case of a batch processing type
- FIG. 8 (b) shows a flow chart. Indicates the case of the processing expression. .
- FIG. 9 is a cross-sectional view showing the liquid crystal display device according to the present invention.
- FIG. 10 is an enlarged view of a principal part schematically showing the monomolecular film according to Example 11 of the present invention.
- FIG. 11 is a spectrum diagram of FT-IR of the monomolecular film according to Example 11-11.
- FIG. 12 is a spectrum diagram of FT-IR of the monomolecular film according to Comparative Example 11-11.
- FIG. 13 is an enlarged view of a main part schematically showing a monomolecular film according to Examples 13 to 13 of the present invention.
- FIG. 14 is a spectrum diagram of FT-IR of the monomolecular film according to Examples 13 to 13 above.
- Figure 15 shows the FT-IR spectrum of the monolayer of Comparative Example 1-2. This is a diagram.
- FIG. 16 is a spectrum diagram of FT—IR of the monomolecular film according to Comparative Example 14;
- FIG. 17 is a spectrum diagram of FT-IR of the monomolecular film according to Comparative Example 115.
- FIG. 18 is an enlarged view of a principal part schematically showing a monomolecular film according to Example 2-1 of the present invention.
- FIG. 19 is a spectrum diagram of FT-IR of the monomolecular film according to Example 2-1.
- FIG. 20 is a spectrum diagram of FT-IR of the monomolecular film according to Comparative Example 2-1.
- FIG. 21 is an enlarged view of a main part schematically showing a monomolecular film according to Example 2-2 of the present invention.
- FIG. 22 is a spectrum diagram of FT-IR of the monomolecular film according to Example 2-2 above.
- FIG. 23 is a spectrum diagram of FT-IR of the monomolecular film according to Comparative Example 2-2.
- FIG. 24 is a spectrum diagram of FT-IR of the monomolecular film according to Example 2-3 of the present invention.
- FIG. 25 is a spectrum diagram of FT-IR of the monomolecular film according to Comparative Examples 2-3.
- FIG. 26 is a spectrum diagram of FT-IR of the monomolecular film according to Comparative Examples 2-4.
- the method for producing an organic thin film according to the present invention comprises contacting a substrate with a group of molecules having a functional group that is reactive to a functional group having active hydrogen.
- a removing step of removing with a cleaning agent containing at least one selected from the group consisting of glycols and alcoholic alcohols. is there .
- the above molecule can be a molecule having one kind of functional group selected from the group of functional groups represented by the following general formula (1).
- A represents one kind of atom selected from the group consisting of silicon, germanium, soot, titanium, and zirconia, and X represents nitrogen. It represents one type of functional group selected from the group consisting of gen, an alkoxy group and an isocyanate group.
- halogen examples include F, C1, Br and I, and C1 is preferred from the viewpoint of reactivity with the substrate.
- the functional group listed below may be linked to the functional group represented by the general formula (1). Is formed.
- the functional group linked to the functional group represented by the general formula (1) is not limited to those described above.
- the preparation of the adsorption solution is performed in a dry atmosphere having a relative humidity of 35% or less, for example, in dry air, dry nitrogen, or dry helium. It is preferable to be told.
- a group of molecules having a functional group represented by the general formula (1) is
- a thin film 3 as shown in FIG. 5 (a) is formed on the surface of the substrate 1.
- the adsorbed molecules adsorbed on the surface of the substrate 1 and the unadsorbed molecules not adsorbed on the substrate 1 are bonded to each other, and the unadsorbed molecules are further combined with other molecules.
- a chain is formed, for example, by the unadsorbed molecules being bonded, resulting in a polymer-like structure. The longer the chain extends upward (to the atmosphere) from the surface of the substrate 1, the more it bends, and the three-dimensionally entangled with the other bent chains.
- the thin film 3 is formed in a state where the thin films 3 are joined.
- the thin film 3 having such a film structure is formed for the following reason. That is, unadsorbed molecules that do not adsorb to the surface of the substrate 1 react with moisture in the atmosphere, and HX molecules are desorbed. As a result, an OH group is introduced into the unadsorbed molecule. Then, the OH group cross-links by reacting with the functional group (adsorption site) represented by the general formula (1) in the other unadsorbed molecule. As a result, a thin film having the structure as described above is formed.
- the thin film shown in the figure has a thickness such that a monomolecular film composed of adsorbed molecules is stacked in three layers, and in this case, it is referred to in this specification. Is referred to as the trimolecular layer for convenience.
- a monomolecular film 2 is formed on the surface of the substrate 1 as shown in FIG. 5 (b).
- a thin film having a structure in which the unadsorbed molecules 4 adhere to the surface of the monomolecular film 2 is formed. Since this is in a dry atmosphere, the adsorption site in the non-adsorbed molecule 4 does not react with moisture and adheres in a state having the functional group represented by the general formula (1). It depends on what you are doing.
- the method for bringing the molecule having the functional group represented by the general formula (1) into contact with the surface of the base material 1 is not particularly limited.
- a method in which the substrate 1 is immersed in an adsorption solution prepared in advance, a method in which the adsorption solution is applied to the substrate 1 and the like can be mentioned.
- the functional group having active hydrogen present on the surface of the base material 1 may be:
- the active hydrogen of the above functional group may be It may be a functional group substituted with a alkaline metal or an alkaline earth metal.
- the surface of the substrate 1 is modified by introducing a compound oxidizing agent such as a manganic acid solution or the like to introduce the above-mentioned functional group, or the number thereof is increased. I prefer to do it.
- the removal process is also performed using a cleaning agent containing one type (S3).
- the main object to be washed in this step is a molecule having a functional group represented by the general formula (1), which remains without being fixed to the surface of the substrate 1 by a chemical bond. It is a group of unadsorbed molecules. More specifically, in FIG. 5 (a), not the base material 1 but the constituent molecules in the network-like molecular layer 3 formed on the base material 1. The unadsorbed molecules bound to all the adsorbed molecules are to be washed. In addition, in FIG.
- the accumulated film 5 composed of the unadsorbed molecules 4 attached to the surface of the monomolecular film 2 is to be cleaned.
- a monomolecular organic thin film having a uniform film thickness can be formed. Wear .
- the ketones as cleaning components contained in the above-mentioned cleaning agent have excellent solubility in the molecule having a functional group represented by the above general formula (1).
- Specific examples of the ketones include, for example, acetone, methylethylketone, methylketone, methylisobutylketone, and acetylene. Aceton and the like.
- Alkylene glycols as a cleaning component contained in the above-mentioned cleaning agents are specifically, for example, ethylene glycols. , Propylene glycols, butylene glycols and the like. Of these, ethyl alcohol is the most suitable.
- the above ethylene glycols are colorless with little odor and are easily miscible with many kinds of organic solvents, water, surfactants and the like. This is because that . Therefore, it is convenient to design the cleaning agent.
- Specific examples of the above-mentioned ethylene glycols include, for example, ethylene glycol monoethyl alcohol, polyethylene glycol, and the like.
- the above-mentioned alkyl alcohols include polyethylene glycols, polypropylene glycols, and polybutyl alcohols. It may be a polymer such as a English language.
- Specific examples of the above-mentioned polyethylene glycols include, for example, polyethylene glycol, polyethylene glycol, etc. Tertiary, Polyethylene glycol monoethyl ether, Polyethylene glycol monoethyl acetate, Polyethylene glycol monoethyl acetate Acetate, Polyethylene glycol monomethyl ether, Polyethylene glycol monomethyl ether acetate, Polyethylene glycol Mono-n-butyl ether, polyethylene glycol monophenyl ether, and the like can be suitably used.
- the above-mentioned alkyl alcohol is a polymer
- its molecular weight is preferably about 2,000 or less, and it is preferably from 100 to 30. More preferably it is in the range of 0. If the molecular weight is larger than 2,000, the viscosity increases and the handling becomes too poor. However, minutes When using a polymer with a molecular weight of about 300 or more, it is best to use a solution that is dissolved in water, alcohol, etc. as a cleaning solution. is there .
- polyethylene glycol As the polymer and want to dissolve it in water, you can use the polyethylene glycol
- concentration is preferably about 10 to 50 wt%, and when it is dissolved in alcohol, it is about 10 to 50 wt%. Something is preferred.
- the above-mentioned alcoholic alcohols are not particularly limited, and specifically, for example, methoxy alcoholic alcohols, Ethoxy and evening knoll.
- the cleaning agent according to the present invention uses any one of the above ketones, alkyl alcohols or alkoxy alcohols alone. It may be a non-aqueous cleaning agent.
- the above removal step may be performed in a dry atmosphere (relative humidity of 35% or less).
- a dry atmosphere relative humidity of 35% or less.
- the above-mentioned removing step is performed in a dry atmosphere, it is preferable to use a cleaning agent having a low water content.
- the water content is less than 1.0%, there is often no practical problem, but it is preferable that the water content is less than about 0.1%, and more preferably. More preferably, it is less than about 0.01%. If the water content exceeds the above numerical range, the AX group in the unadsorbed molecule or the adsorbed molecule reacts with the water contained in the detergent to form a crosslinked structure. Also cannot form a monomolecular film.
- Specific cleaning methods performed in the above-mentioned removing step include, for example, a method in which the substrate 1 is gently immersed in a cleaning tank filled with a cleaning agent, and a method in which the cleaning is performed.
- the cleaning conditions in the above-mentioned removal step are not particularly limited, but include the degree of adhesion of unadsorbed molecules to the object to be cleaned, the material and shape of the object to be cleaned, and It may be set as needed, taking into account the effect on the post-process. Furthermore, by changing the concentration of the detergent, the cleaning time, the number of times of cleaning, etc., for example, a film thickness equivalent to not only a monomolecular organic film but also two molecular layers is obtained. It is possible to control the film thickness, for example, to form an organic thin film having a thickness. That is, the film thickness is controlled by controlling the degree of the remaining unadsorbed molecules.
- washing tanks containing a cleaning agent of a predetermined concentration are provided, and each washing tank is washed for a predetermined time to increase the degree of washing, so that non-adsorption is achieved. Almost all of the molecules are removed, and a monomolecular organic thin film can be obtained.
- the washing tank is reduced to about one tank and the washing time is shorter than the above-mentioned predetermined time and only light washing is performed, many unadsorbed molecules remain. .
- the unadsorbed molecules react with the moisture in the air and are fixed, and for example, a film having a film thickness equivalent to several molecular layers such as two molecular layers. An organic thin film is formed.
- the molecular design of the adsorbed molecules to be adsorbed on the substrate 1 is changed to improve the accuracy. Good control is also possible.
- This cleaning agent removal process is mainly divided into a first cleaning agent removal method in which the cleaning agent is washed away with a rinsing agent, and a second cleaning agent removal method in which the cleaning agent is dried and evaporated. It is.
- the first cleaning agent removal method is based on the group consisting of ketones, alkyl glycols and alcohols in the cleaning agent. It can be adopted if at least one species selected is included.
- the second cleaning agent removal method can be mainly used when the cleaning agent contains ketones.
- the first cleaning agent removing method includes a rinsing step (S5) of rinsing the cleaning agent with the rinsing agent, and removing the rinsing agent by evaporating the rinsing agent.
- the process consists of a rinsing agent drying step (S6) (see Fig. 2).
- This first cleaning agent removal method uses a relatively boiling point as a cleaning agent from the viewpoint of safety or the like when the molecular group in which the AX group remains is adsorbed on the surface of the substrate 1. It is preferable to use this method when using a solvent with high viscosity.
- the residual washing agent is removed, and at the same time, the elimination reaction of HX occurs between the unreacted AX group and water to introduce OH groups into the adsorbed molecules.
- the rinsing process is performed for the purpose of (see Fig. 6 (a)). Therefore, it is preferable to use water as the rinsing agent.
- the OH groups undergo a dehydration reaction to form an organic thin film having a crosslinked structure shown in FIG. 6 (b). You can do it.
- the high-boiling solvent (cleaning agent) adhering to the object to be cleaned is difficult to dry and evaporate at room temperature.
- the high-boiling solvent is replaced with a low-boiling rinse agent.
- the main purpose is to give As a low-boiling rinsing agent to be used in this case, it is possible to use, for example, acetate or alcohol.
- the rinsing effect can be improved by applying a mechanical force such as ultrasonic waves.
- the above-mentioned second cleaning agent removal method is based on evaporating the cleaning agent. It consists of a cleaning agent drying step (S7) for removing, a contacting step (S8) for bringing the substrate 1 into contact with moisture, and a drying step (S9) for drying moisture (S9). See Figure 3).
- This second cleaning agent removal method uses a low-boiling-point cleaning agent that evaporates at normal temperature, such as, for example, acetonitrile-methylketone. It is preferable to do this when The contacting step is performed in order to introduce OH groups into the adsorbed molecules by reacting the AX groups remaining on the molecules adsorbed on the surface of the substrate 1 with water and the adsorbed molecules. .
- a method of bringing into contact with moisture for example, a method of leaving the material in the air and reacting with the moisture in the air or directly reacting with water is adopted.
- a drying step (S9) the OH groups can be dehydrated to form an organic thin film having a crosslinked structure.
- a low-boiling-point cleaning method in which the adsorbed molecules adsorbed on the substrate 1 do not have AX groups and evaporate at room temperature. If a cleaning agent is used, it is only necessary to dry the cleaning agent after the removal step.
- the substrate 1 is made of glass, metal, metal oxide, ceramics, plastic, wood, stone, fiber, paper, polymer resin, or the like. Materials consisting of any one of the materials selected from the group can be applied. Further, the surface of the substrate 1 may be coated with a paint or the like. Substrates made of these materials have similar physical properties in that a functional group having active hydrogen is present on the surface. In addition, when a plastic or the like is particularly used as the material of the base material 1, depending on the type of the plastic, the base material 1 may be modified or dissolved. It may be possible to cause damage. Therefore, it is necessary to use the cleaning agent after confirming that the cleaning agent does not exert the above-mentioned effects on the base material 1 made of plastic. Hereinafter, specific examples of uses to which the present invention can be applied are listed. The present invention is not limited to them.
- Knits kitchen knives, scissors, knife, katsu yuichi, chisel, razor, glue, saw, canna, chisel, chisel, cone, a thousand pieces, knife , Drill Blade, Mixer Blade, Juicer Blade, Flour Miller Blade, Lawn Mower Blade, Punch, Push-Off, Hot-Kiss Blade, Can Opener Blade or surgical tool.
- needles for needle surgery, sewing needles, sewing needles, foot needles, tatami needles, injection needles, surgical needles, safety pins, push pins, etc.
- Ceramic products ceramics, glass, ceramics, or products containing porcelain.
- sanitary ware eg, toilet bowl, wash basin, bathtub, etc.
- tableware eg, bowls, dishes, bowls, teacups, cups, bottles, coffee boilers
- Containers, pots, mortars, cups, etc. vases (eg, basins, flowerpots, single-wheel inserts, etc.), water tanks (eg, aquaculture tanks, viewing tanks, etc.), chemical laboratory equipment (For example, beakers, reaction vessels, test tubes, flasks, schales, cooling tubes, stirring rods, stirrers, mortars, mortars, bottles, syringes, etc.)
- mirrors Hand mirrors, cosmetic accessory mirrors, mirrors, bathroom mirrors, bathroom mirrors, car mirrors (for example, knock mirrors, side mirrors, etc.) Etc.), traffic mirrors (eg, car mirrors, reflectors, etc.), mirrors for half mirrors, mirrors for short winds, and department store Mirror etc.
- molding members press molding dies, ⁇ molding dies, injection molding dies, transfer molding dies, vacuum molding dies, blowing Injection molding dies, extrusion molding dies, inflation molding die, fiber spinning die, calendar processing rolls, etc.
- Examples of food molds cake baking molds, cooky baking molds, pan baking molds, chocolate baking molds, jelly molding molds, ice Cream molds, open dishes, ice trays, etc.
- cooking utensils pots, kettles, kettles, pots, bowls, fly nonons, hotplates, grilled grills, oil drainers, and evening grills Plates, pots for bread baking machines, pots for rice cake making machines, rice cookers, ladles, whisks, etc.
- resins examples include polyolefins such as polypropylene, polyethylene, polyvinyl chloride, vinyl chloride polyvinylidene, and polyamide , Polyimide, Polyamide Imide, Polyester, Aramid, Polystyrene, Polyphon, Polyethersulfone , Polyphenylene sulfide, phenolic resin, franc resin, urea resin, epoxy resin, polyurethane, silicone resin, ABS resin, methacrylic acid resin, methacrylic acid ester resin, acrylic acid resin, acrylic acid ester resin, polyacetyl resin, poly Phenyl oxide, etc.
- polyolefins such as polypropylene, polyethylene, polyvinyl chloride, vinyl chloride polyvinylidene, and polyamide , Polyimide, Polyamide Imide, Polyester, Aramid, Polystyrene, Polyphon, Polyethersulfone , Polyphenylene sulfide, phenolic resin, franc resin, urea resin,
- Dishwasher shaving machine, antenna, fan wings, dial, palmer dryer, etc.
- ABS resin Lampcano, 'I, instrument-inner internal components, photo-noise protector
- FRP fiber reinforced resin
- Phenolic resin brake
- roofing materials include kiln tiles, flat tiles, and tin (zinc plating iron plate).
- Wood including processed wood
- mortar including processed wood
- concrete mortar
- ceramic sizing including processed wood
- metal sizing lingers, stones
- Metal materials such as chip materials and aluminum.
- Interior materials include wood (including processed wood), aluminum and other metals and materials, plastics, paper, and textiles.
- Examples of stone materials Kako ⁇ rock, marble, granite, etc.
- thermos bottles such as thermos bottles, vacuum equipment, insulators for power transmission, and high withstand voltage insulators with high water-repellent, oil-repellent and antifouling effects such as spark plugs.
- the present inventors disclosed in Japanese Patent No. 2,598,867 a chemisorption film having an improved film density and a method for producing the same. ing .
- the method of manufacturing a chemisorbed membrane disclosed in this publication is based on a chemical reaction method in which an adsorption reaction and a washing for removing unreacted adsorbed molecules are alternately repeated.
- An adsorbent is immobilized on a substrate and a chemically adsorbed film to form a chemically adsorbed film having a high film density.
- a non-aqueous solution is used for cleaning, the formed chemical adsorption film differs from the organic thin film of the present invention in the following points in terms of the film structure.
- the chemically adsorbed film formed by the above-mentioned method can be used for the first time even if the surface of the substrate has no active hydrogen-containing functional groups, the chemically adsorbed film is first adsorbed on the substrate. Since a chemisorbed graphitic molecule is bonded to the stem molecule, the distance between the constituent molecules of the chemisorbed membrane is shortened, resulting in a structure with a high film density. However, the chemisorbed graphitic molecule still has a hydroxyl group that has not been used for bonding with the chemisorbent stem molecule or the like. Many hydroxyl groups are left inside.
- the film density of the organic thin film of the present invention is lower than that of the chemisorbed film because most of the film-forming molecules are adsorbed on the surface of the substrate.
- a drying step is performed in the manufacturing process, and the hydroxyl groups present in the film are cross-linked by a dehydration reaction, so that they are compared with the above-mentioned chemical adsorption film. The probability of the presence of hydroxyl groups is low.
- the present invention has established a production process for an organic thin film having a film structure essentially different from that of the chemisorption film described in the above publication. It is.
- the apparatus for producing an organic thin film according to the present invention is provided with a film forming means and a removing means (see FIG. 7). Further, between the film forming means and the removing means, it is also possible to provide a base material transfer means 52 such as a conventionally known transport device or the like, for example.
- the film forming means applies the adsorbing solution onto a substrate, etc. It has the function of adsorbing and fixing the group of adsorbed molecules contained in the deposition solution on the substrate to form a film.
- Specific examples of the film-forming means include a spin-type or roller-type coating device.
- the above-described removing means is at least one selected from the group consisting of ketones, alkyl alcohols, and alkoxy alcohols. It has the function of cleaning the object to be cleaned with the contained cleaning agent.
- what is to be cleaned is unadsorbed adsorbed molecules (unfixed molecules) remaining on the substrate after being adhered.
- the film forming means and the removing means may be included in the same closed system, or may be provided independently of each other.
- the film forming means and the removing means are of the same closed system as in the above configuration, it is possible to shut off the outside air.
- the film formation step and the removal step can be performed in a dry atmosphere (FIG. 7 (a)).
- the film forming means and the removing means are configured to be included in the same closed system means that, for example, the outside air shielding means 51 capable of installing the film forming means and the removing means inside the organic thin film is manufactured. This means that the device is provided in the device.
- the outside air shielding means 51 is not particularly limited as long as it can shield outside air from the inside of the outside air shielding means 51, and is not limited to, for example, temperature and humidity.
- An example is a controllable chamber or a processing room.
- a convection control means capable of controlling the internal convection as well as controlling the humidity at normal temperature and normal pressure may be provided. This makes it possible to control the internal humidity and the convection state, thereby ensuring work safety. It is necessary to ensure safety when using compounds with a low molecular weight among the above ketones, alkylene glycols or alcoholic alcohols. Therefore, care must be taken because cleaning agents containing these are flammable.
- the film forming means and the removing means can be constituted as separate and independent processing units (FIG. 7 (b)). When the film forming step and the removing step are to be performed in a dry atmosphere, the outside air shielding means is provided for each processing unit so that isolation from outside air and control of humidity and the like can be performed. May be provided.
- the removing means may be of a no-touch type or of a flow-type.
- Examples of the batch treatment method include an immersion method of immersing a base material as an object to be cleaned.
- this dipping method as shown in FIG. 8 (a), specifically, as shown in FIG. 8 (a), the cleaning agent 32 is filled in the cleaning tank 31 and the base material 34 is force-set.
- the cassette 33 is placed on the washing tank 31 and washed by immersing the cassette 33 in the washing tank 31 for a predetermined time.
- a transport section 4.1 for transporting the base material 34 and a plurality of jetting devices 4 2 for jetting the cleaning agent are provided.
- the spraying device 42 includes a gate-shaped main body 43 and nozzles 43 for spraying the cleaning agent in the form of mist or droplets. It has been done.
- the nozzle 43 is provided such that the direction of spraying the cleaning agent is the same as the direction directly downward.
- the transport section 41 is installed so as to be inside the gate-shaped main body section 43.
- the substrates 34 placed on the transport section 41 are transported in the direction indicated by the arrow A, and the nozzles 44. Cleaning is performed by spraying the cleaning agent.
- the above-described patch processing method and flow processing method are merely examples, and are not limited to the above-described means, but are included in the scope of the claims of the present invention. Anything having substantially the same configuration as the described technical idea and exerting the same action and effect is included in the technical scope of the present invention. Included.
- the apparatus for producing an organic thin film according to the present invention may include a cleaning agent removing step for removing a cleaning agent attached to a base material, if necessary. It can also be installed ( Figure 7 (a) and Figure 7 (b)).
- the cleaning agent removing means may have a structure including a rinsing means and a drying means, as shown in FIG. 7 (c).
- the above-mentioned rinsing means is not particularly limited, and various conventionally known rinsing devices can be used.
- the drying means is not particularly limited, and various conventionally known drying apparatuses can be used. Among them, as the drying means, a room temperature air or a hot air flow can be suitably used.
- the type of the cleaning agent and the washing method may be used as necessary. Must be selected.
- the organic thin film of the present invention When the organic thin film of the present invention is applied to a liquid crystal display device as a liquid crystal alignment film, the organic thin film can be manufactured by the following method. First, in the same procedure as described above, a substrate on which an electrode made of, for example, IT0 (indium tin oxide) is formed is brought into contact with the adsorption solution. To adsorb the adsorbed molecules (S2, see Fig. 1). The adsorbed molecules can be adsorbed on the IT0 surface because OH groups are present on the ITO surface, and the adsorbed molecules are reactive with functional groups having active hydrogen such as OH groups. This is because it has a functional group showing As a result, a thin film having excellent peel resistance and the like can be formed.
- IT0 indium tin oxide
- the IT0 surface uses excimer UV treatment.
- a treatment such as a plasma treatment
- the ITO surface is modified to reduce the OH group or the like, or a layer of another material (for example, a vapor-deposited S It is preferable that an i 0 layer is formed on a substrate and a liquid crystal alignment film is formed via this material layer.
- the above-mentioned removal step it is selected from the group consisting of ketones, alkylene glycols and alcoholic alcohols. Since the cleaning is performed with a cleaning agent containing at least one kind, the adsorption state of the adsorbed molecules is hardly disturbed, and a film structure in which the adsorbed molecules are uniformly arranged and ordered is achieved. it can .
- the cleaning agent is removed in S 4, whereby the liquid crystal orientation film according to the present invention is formed.
- the film can be formed.
- the liquid crystal alignment film may be subjected to an alignment treatment such as a rubbing treatment, if necessary.
- the method of manufacturing a liquid crystal alignment film according to the present invention is capable of forming a liquid crystal alignment film having a uniform film thickness without using a chlorine-based cleaning agent on the environment. It can be formed while suppressing the amount of the compound.
- the liquid crystal display device includes a first substrate 61, a second substrate 62 paired with the first substrate 61, and a first substrate 61 and a second substrate 62 interposed between the first substrate 61 and the second substrate 62.
- a liquid crystal layer 6 3 Configuration On the inner surface of the first substrate 61, a thin film transistor (TFT) group 64 4... And a first electrode 65 are formed, and a liquid crystal orientation film 6 is formed on the first electrode 65. 6 is formed.
- TFT thin film transistor
- a color filter 67 is formed on the inner surface of the second substrate 62, and a second color filter 67 is formed on the second substrate 62 and the color filter 67. Electrodes 68 are provided. A liquid crystal alignment film 69 is formed on the second electrode 68. Further, the first substrate 61 and the second substrate 62 are bonded and adhered by a seal material 70, and the liquid crystal is sealed and held in the panel. A polarizing plate 71 is provided outside the first substrate 61, and a polarizing plate 72 is provided outside the second substrate 62.
- the first substrate 61 and the second substrate 62 are transparent substrates made of glass, for example. Further, the first electrode 65 and the second electrode 68 are, for example, transparent conductive films made of IT0.
- the liquid crystal layer 63 includes, for example, a nematic liquid crystal.
- the above-mentioned color filter 167 is a liquid crystal display device having the above-described configuration which includes the dots of R (red), G (green) and B (blue). If so, alignment defects and the like of the liquid crystal are not observed, and the display quality can be excellent. This is because, as described above, the liquid crystal alignment film has a uniform film thickness, and a group of adsorbed molecules is uniformly arranged and adsorbed. As a result, the liquid crystal alignment film exhibits excellent alignment ability and exhibits an alignment property. This is because the liquid crystal molecules can be aligned without disturbing the state.
- the liquid crystal display device having the above configuration is manufactured by adopting a conventionally known method except that the liquid crystal alignment films 66 and 69 are formed by the above-described method. I can do it.
- the apparatus for manufacturing a liquid crystal alignment film according to the present invention may have the same configuration as the above-described apparatus for manufacturing an organic thin film. Therefore, the detailed theory Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
- the materials and manufacturing conditions of the components described in the examples are not limited to the scope of the present invention unless otherwise specified. It is not intended to be limited to only the examples, and is merely an example of explanation.
- an adsorption solution A was prepared by dissolving n-year-old octadecyl trichlorosilan in hexadecane so as to be about 1% by weight.
- the glass substrate 11 (2 cm ⁇ 5 cm, thickness 1.1 mm), which had been sufficiently degreased and cleaned, was immersed in the adsorption solution A for 1 hour.
- the hydroxyl group present on the surface of the glass substrate 11 and the trichloride silyl group cause a dehydrochlorination reaction represented by the following chemical reaction formula.
- it was chemisorbed onto the glass substrate 11 via a siloxane bond.
- FT-IR Fourier transform infrared spectroscopy
- Comparative Example 11-11 a glass substrate was obtained by performing the same steps as in Example 11 except that a black hole form was used as a cleaning agent.
- a monomolecular film 12 was formed on 11.
- the FT-IR measurement was performed on the monomolecular film 12, as shown in FIG. 12, the absorption spectrum was almost the same as the absorption spectrum shown in FIG. A signal having almost the same absorption intensity was obtained at the same absorption position.
- Example 1-1 and Comparative Example 11-11 the following differences were found in the film structure between the two.
- the absorption originating from the antisymmetric stretching vibration in CH 2 of 292 cm- 1 is 2880 the CH 2 of cm one 1 If you compare the absorption and that causes derived symmetric stretching vibration, its a The absorption ratio is 2.2: 1 in FIG. 11 according to Example 1-1, and 2.0: 1 in FIG. 12 according to Comparative Example 1-1. Met . This indicates that the monomolecular film according to Example 1-1 has a more uniform film structure than the monomolecular film according to Comparative Example 11-11. ing .
- Example 112 the same procedures as in Example 11 were carried out except that methyl alkyl ketone (50 ml to 100 ml) was used as a cleaning agent.
- a monomolecular film 12 was formed on the glass substrate 11 by performing the above steps.
- the FT-IR measurement was performed on the monomolecular film 12, a signal having almost the same absorption intensity was obtained at almost the same position as in FIG. 11 described above.
- a siloxane-based solvent trade name: KF966L, manufactured by Shin-Etsu Chemical Co., Ltd.
- Toluene 10/1
- an adsorption solution B was prepared.
- the glass substrate l1 which had been sufficiently degreased and cleaned, was immersed in the adsorption solution B for 1 hour in a nitrogen atmosphere.
- the molecule represented by the above chemical formula (4) is converted into the glass substrate 1 as shown in the following chemical formula (5). Chemisorbed on
- Comparative Example 1-2 glass was obtained by performing the same steps as in Examples 1-3 except that a black hole holm was used as a cleaning agent. A monomolecular film 13 was formed on the substrate 11. When the FT-IR measurement was performed on the monomolecular film 13, as shown in FIG. A signal with almost the same absorption intensity was obtained at almost the same position as above.
- Comparative Example 13-13 the same steps as in Examples 1-3 were performed except that ethyl acetate or ethyl formate was used as the cleaning agent.
- a monomolecular film 13 was formed on a glass substrate 11. When exposed to air after the formation of the monomolecular film 13, the surface of the glass substrate 11 becomes cloudy instantaneously, and it is impossible to form a thin film having transparency. It was possible.
- the above-mentioned ethyl formate and methyl formate are disclosed in Japanese Patent Application Laid-Open No. 6-41542, Japanese Patent Application No. 6-3122477, and Japanese Patent Application Laid-open No. 6-187692. Esters having a carbonyl group, which are described in gazettes and the like.
- Example 11-13 In Comparative Examples 1-4, except that toluene was used as the cleaning agent, the same steps as those in Example 11-13 were carried out. A monomolecular film 13 was formed thereon.
- Example 115 the same steps as in Example 113 were performed except that DMF (dimethylformamide) was used as the cleaning agent. Thus, a monomolecular film 13 was formed on the glass substrate 11.
- DMF dimethylformamide
- an adsorption solution A was prepared by dissolving n-year-old octadecyl trichlorosilan in hexadecane so as to be about 1% by weight.
- the glass substrate 21 (20 ⁇ 7 mm, thickness 1.1 mm), which had been sufficiently degreased and cleaned, was immersed in the adsorption solution A for 1 hour.
- the hydroxyl group and the tricyclosilyl group present on the surface of the glass substrate 21 cause a dehydrochlorination reaction represented by the following chemical reaction formula.
- it was chemisorbed onto the glass substrate 21 via a siloxane bond.
- the unreacted C 1 group in the molecule chemically adsorbed on the glass substrate 21 is replaced with an O H group while washing away the cleaning agent. Subsequently, the glass substrate 21 was dried. As a result, the OH groups were cross-linked by causing a dehydration reaction, and the monomolecular film 22 shown in FIG. 18 was formed on the glass substrate 21.
- the Fourier transform infrared spectroscopy (hereinafter, referred to as the monomolecular film 22) is described.
- FT-Abbreviation for IR When you hand measurement), Ni Let 's are shown in FIG. 1 9, 2 9 3 0 ⁇ 2 8 4 0 cm- 1 ( attributable: CH 3 and one CH 2 -), 1 4 7 0 cm - 1 ( Attribution: —CH 2 —) and 108 cm-- 1 (attribution: one Si—0—) gave characteristic signals. As a result, it was confirmed that the monomolecular film 22 shown in FIG. 18 was formed.
- Comparative Example 2-1 the same steps as those in Example 2-1 were carried out except that the black hole film was used as the cleaning agent.
- a monomolecular film 22 was formed on a substrate 21.
- the FT-IR measurement was performed on the monolayer 22, as shown in FIG. 20, the absorption spectrum was almost the same as the absorption spectrum shown in FIG. A signal with almost the same absorption intensity was obtained at the absorption position.
- Example 2-1 had a more uniform and ordered film structure than the monomolecular film according to Comparative Example 2-1.
- siloxane-based solvent (trade name: KF966L, Shin-Etsu Chemical Co., Ltd.)
- the glass substrate 21 that had been sufficiently degreased and washed was immersed in the adsorption solution B for 1 hour in a nitrogen atmosphere.
- the molecule represented by the above chemical formula (4) was chemically adsorbed on the glass substrate 21 as shown in the following chemical formula (5).
- Glycol ether as a cleaning agent (trade name: PK-LCG55, manufactured by Pachiriki Co., Ltd.) (Average molecular weight: 200) was placed in a washing tank so as to obtain a sufficient amount, and heated at about 80 ° C.
- the glass substrate was thoroughly cleaned in this cleaning tank.
- the glass substrate 21 was thoroughly washed with water in order to wash off the polyethylene glycol adhering to the surface thereof.
- the unreacted C 1 group in the molecule chemically adsorbed on the glass substrate is replaced with an O H group while washing away the cleaning agent.
- the glass substrate 21 was dried.
- the OH groups caused a dehydration reaction to crosslink with each other, and the monomolecular film 23 shown in FIG. 21 was formed on the glass substrate 21.
- Comparative Example 2-2 the same process as in Example 2-2 was carried out, except that the mouth opening film was used as a cleaning agent.
- a monomolecular film 23 was formed on the substrate 21.
- the FT-IR measurement was performed on the monolayer 23, as shown in FIG. 23, the absorption spectrum was almost the same as the absorption spectrum shown in FIG. A signal with almost the same absorption intensity was obtained at the same absorption position.
- Example 2-2 had a more uniform and uniform film structure than the monomolecular film according to Comparative Example 2-2.
- Example 2-3 the same steps as those in Example 2-2 were performed except that ethoxyethanol was used as a cleaning agent.
- a monomolecular film 23 was formed on a glass substrate 21.
- the FT-IR measurement was performed on the monomolecular film 23, as shown in FIG. Signals with almost the same absorption intensity were obtained at almost the same positions as in FIGS. 22 and 23.
- Example 2-3 except that toluene was used as the cleaning agent, the same process as in Example 2-2 was performed, whereby the glass substrate 2 was formed. A monomolecular film 23 was formed on 1.
- Example 2-4 the same steps as in Example 2-2 were performed except that DMF (dimethylformamide) was used as a cleaning agent. Thus, a monomolecular film 23 was formed on the glass substrate 21.
- DMF dimethylformamide
- the object of the present invention can be sufficiently achieved.
- the organic thin film of the present invention is composed of a group consisting of ketones, alkylene glycols, and alcoholic alcohols. Since it is formed by cleaning with a cleaning agent containing at least one selected from the group, a film structure having a uniform film thickness and being uniformly arranged and ordered can be obtained.
- a cleaning agent containing at least one selected from the group ketones, alkyl alcohols, and alkoxy alcohols can be obtained.
- the use of cleaning agents containing at least one selected from the group consisting of Unfixed molecules can be removed as a substitute for the detergent, and an organic thin film having a uniform film thickness can be produced. As a result, there is an effect that it is possible to provide a process for producing an organic thin film with reduced environmental load.
- the alignment state is not disturbed because the liquid crystal alignment film has a uniform film thickness and a uniform film structure in which the molecular groups are uniformly arranged. It becomes possible to orient liquid crystal molecules.
- ketones, alkylene glycols and alcoholic alcohols are used.
- a cleaning agent containing at least one selected from a group unfixed molecules can be removed without using a chlorine-based organic solvent.
- a liquid crystal alignment film having a uniform film thickness can be manufactured.
- a liquid crystal alignment film having a good orientation and a good orientation ability can be manufactured by reducing the load on the environment without causing a disorder in the film structure due to good adsorption state to the substrate. It has the effect of
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Application Number | Priority Date | Filing Date | Title |
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KR1020007011053A KR20010042451A (ko) | 1999-02-10 | 2000-02-10 | 유기박막, 그 제조방법 및 그 제조장치와 액정배향막, 그제조방법 및 그 제조장치와 액정배향막을 사용한액정표시장치 및 그 제조방법 |
EP00902932A EP1084822A1 (en) | 1999-02-10 | 2000-02-10 | Organic thin films, process for the production thereof and equipment therefor; alignment layers for liquid crystals, process for the production thereof and equipment therefor; and liquid crystal displays made by using the alignment layers and process for the production thereof |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11/33459 | 1999-02-10 | ||
JP3345999 | 1999-02-10 | ||
JP11/60808 | 1999-03-08 | ||
JP6080899 | 1999-03-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000047403A1 true WO2000047403A1 (fr) | 2000-08-17 |
Family
ID=26372156
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2000/000776 WO2000047403A1 (fr) | 1999-02-10 | 2000-02-10 | Minces films organiques, procede de production de ceux-ci et equipement prevu a cet effet; couches d'alignement pour cristaux liquides, procede de production de ceux-ci et equipement prevu a cet effet;et ecrans d'affichage a cristaux liquides fabriques a l'aide de ces couches d'alignement et procede de production de ceux-c |
Country Status (4)
Country | Link |
---|---|
EP (2) | EP1084822A1 (ja) |
KR (1) | KR20010042451A (ja) |
CN (1) | CN1293614A (ja) |
WO (1) | WO2000047403A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6485785B1 (en) * | 1999-08-31 | 2002-11-26 | Matsushita Electric Industrial Co., Ltd. | Coating film, and method and apparatus for producing the same |
FR2840297B1 (fr) * | 2002-05-31 | 2005-03-25 | Centre Nat Rech Scient | Procede pour l'elaboration d'un substrat mineral modifie en surface, et substrat obtenu |
JP2004327857A (ja) * | 2003-04-25 | 2004-11-18 | Pioneer Electronic Corp | 有機トランジスタの製造方法および有機トランジスタ |
US8814861B2 (en) | 2005-05-12 | 2014-08-26 | Innovatech, Llc | Electrosurgical electrode and method of manufacturing same |
US7147634B2 (en) | 2005-05-12 | 2006-12-12 | Orion Industries, Ltd. | Electrosurgical electrode and method of manufacturing same |
CN103224637B (zh) * | 2013-03-21 | 2015-02-25 | 京东方科技集团股份有限公司 | 一种液晶取向膜及其制备方法与应用 |
KR101632025B1 (ko) | 2015-01-09 | 2016-06-20 | 광주과학기술원 | 유기 박막 제조 방법 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0939149A (ja) * | 1995-07-25 | 1997-02-10 | Matsushita Electric Ind Co Ltd | シロキサン系薄膜の形成方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1948292A (en) * | 1928-07-03 | 1934-02-20 | William C Geer | Protective coating and process for making and applying the same |
US5133895A (en) * | 1989-03-09 | 1992-07-28 | Matsushita Electric Industrial Co., Ltd. | Alignment film for liquid crystal and method for production thereof, as well as liquid crystal display device utilizing said alignment film and method for production thereof |
JP2558903B2 (ja) * | 1989-03-09 | 1996-11-27 | 松下電器産業株式会社 | 液晶配向膜とその製造方法およびそれを用いた液晶表示装置 |
JP3007436B2 (ja) * | 1991-04-30 | 2000-02-07 | 松下電器産業株式会社 | シロキサン系分子膜 |
DE69220717T2 (de) * | 1991-04-30 | 1997-11-06 | Matsushita Electric Ind Co Ltd | Chemisch adsorbierte Schicht und Verfahren zu deren Herstellung |
JP2866554B2 (ja) * | 1992-08-25 | 1999-03-08 | 松下電器産業株式会社 | 情報記録媒体とその製造方法及び情報記録媒体の使用方法 |
US5447778A (en) * | 1992-08-25 | 1995-09-05 | Matsushita Electric Industrial Co., Ltd. | Information recording medium and methods of manufacturing and using the same |
EP0857728B1 (de) * | 1997-02-05 | 2003-03-05 | Rolic AG | Photovernetzbare Silanderivate |
-
2000
- 2000-02-10 EP EP00902932A patent/EP1084822A1/en not_active Withdrawn
- 2000-02-10 WO PCT/JP2000/000776 patent/WO2000047403A1/ja not_active Application Discontinuation
- 2000-02-10 EP EP01200513A patent/EP1132147A3/en not_active Withdrawn
- 2000-02-10 KR KR1020007011053A patent/KR20010042451A/ko not_active Application Discontinuation
- 2000-02-10 CN CN00800106A patent/CN1293614A/zh active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0939149A (ja) * | 1995-07-25 | 1997-02-10 | Matsushita Electric Ind Co Ltd | シロキサン系薄膜の形成方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1132147A2 (en) | 2001-09-12 |
KR20010042451A (ko) | 2001-05-25 |
EP1132147A3 (en) | 2003-12-10 |
CN1293614A (zh) | 2001-05-02 |
EP1084822A1 (en) | 2001-03-21 |
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