WO2009064026A1 - スリット状吐出口から塗工液を吐出する塗布法用の塗工液 - Google Patents
スリット状吐出口から塗工液を吐出する塗布法用の塗工液 Download PDFInfo
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- WO2009064026A1 WO2009064026A1 PCT/JP2008/071162 JP2008071162W WO2009064026A1 WO 2009064026 A1 WO2009064026 A1 WO 2009064026A1 JP 2008071162 W JP2008071162 W JP 2008071162W WO 2009064026 A1 WO2009064026 A1 WO 2009064026A1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/10—Deposition of organic active material
- H10K71/12—Deposition of organic active material using liquid deposition, e.g. spin coating
- H10K71/15—Deposition of organic active material using liquid deposition, e.g. spin coating characterised by the solvent used
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/10—Deposition of organic active material
- H10K71/12—Deposition of organic active material using liquid deposition, e.g. spin coating
- H10K71/13—Deposition of organic active material using liquid deposition, e.g. spin coating using printing techniques, e.g. ink-jet printing or screen printing
- H10K71/135—Deposition of organic active material using liquid deposition, e.g. spin coating using printing techniques, e.g. ink-jet printing or screen printing using ink-jet printing
Definitions
- Coating liquid for coating method that discharges coating liquid from slit-like discharge port
- the present invention relates to a coating liquid used in a coating method in which a coating liquid is discharged from a slit-like discharge port.
- organic EL device As a method for forming a thin film such as a light-emitting layer that constitutes an organic-elect-mouth luminescence device (hereinafter, may be abbreviated as “organic EL device”), a coating liquid is applied from a slit-like discharge port such as a chiral coat method. A coating method for discharging is known.
- an organic compound as a material for the thin film acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, methanol, ethanol, isopropyl alcohol, ethyl acetate, butyl acetate, toluene,
- a coating solution containing a solvent having a boiling point of less than 1700 ° C. such as xylene, chloroform, water, etc. is known (see, for example, Japanese Patent Application Laid-Open No. 2000-164-73) ) Disclosure of the invention
- An object of the present invention is to provide a coating liquid for a coating method in which a coating liquid is discharged from a slit-like discharge port capable of sufficiently increasing the flatness of the thin film when forming the thin film. That is, the present invention provides the following coating liquid, coating method, method for producing an organic EL element, and organic EL element.
- a coating liquid for a coating method that discharges a coating liquid from a slit-like discharge port, an organic compound that is solid at 20 ° C, a first solvent having a boiling point of less than 170 ° C, and 170
- a coating liquid containing a second solvent having a boiling point of ° C or higher A coating liquid containing a second solvent having a boiling point of ° C or higher.
- a method for producing an organic electroluminescence device comprising a step of applying the coating solution according to any one of [1] to [13] by a coating method in which a coating solution is discharged from a slit-like discharge port.
- FIG. 1 is a graph showing the film thickness distribution of a thin film formed using the thin coating coating solution 4 of the thin film coating using the coating solution 3.
- a coating liquid for a coating method that discharges a coating liquid from the slit-shaped discharge port of the present invention is an organic compound that is solid at 20 ° C.
- the organic compound contained in the coating liquid of the present invention may be one type or two or more types.
- the first solvent contained in the coating solution of the present invention may be one type or two or more types, and the second solvent contained in the coating solution of the present invention may be one type or two or more types.
- the coating method that discharges the coating liquid from the slit-shaped discharge port is the coating method that uses the capillary coating method to discharge the coating liquid, and the extrusion method that uses the static pressure level difference.
- Coating method that discharges liquid, coating that discharges coating liquid using a pump examples thereof include a cloth method and a coating method combining any of these, and a capillary coat method is preferred.
- Examples of the shape of the slit-shaped discharge port include a substantially rectangular shape, a trapezoidal shape, and the like. A substantially rectangular shape is preferable, and a rectangular shape and a rounded rectangular shape (a rectangular shape with rounded corners) are more preferable, and a rectangular shape. The shape is more preferable.
- the width in the short direction of the substantially rectangular shape is preferably from 0.11 to 10 mm, and from 0.11 to 1.0 O mm. More preferably.
- the longitudinal width of the substantially rectangular shape is usually in the range of 10 to 15 OO mm.
- the capillary coat coating liquid in the present invention means a coating liquid used for coating by the capillary coat method.
- the mirabil coat method is a method in which the coating liquid is discharged from the nozzle facing upward to the lower surface of the substrate and applied to the lower surface of the substrate. In this method, the liquid is adsorbed on the lower surface of the substrate.
- the organic compound contained in the coating liquid of the present invention is an organic compound that is solid at 20 ° C.
- examples of the organic compound include organic light emitting materials, organic hole transport materials, organic hole injection materials, organic electron block materials, organic electron transport materials, organic Examples include electron injection materials and organic hole blocking materials.
- the organic light emitting material is an indispensable material for the organic EL device, and it is preferable from the viewpoint of manufacturing cost to manufacture a thin film containing the organic light emitting material using the coating liquid of the present invention.
- the organic light emitting material include a material that emits fluorescence and a material that emits phosphorescence.
- Materials that emit fluorescence include high-molecular fluorescent materials and low-molecular fluorescent materials.
- Examples of the phosphorescent material include a polymer compound having a group containing a metal complex in the main chain, side chain, or terminal, a metal complex, and the like. ⁇ Polymer fluorescent material>
- the polystyrene-equivalent weight average molecular weight is generally 1 X 10 3 to 1 X 10 8 , and as a repeating unit, an arylene group, a divalent heterocyclic group, a divalent aromatic amine group And the like.
- the polymer fluorescent material may have one repeating unit or two or more repeating units. Specific examples of the polymer fluorescent material include polyphenylene, a polymer compound having a naphthalene diyl group as a repeating unit, a polymer compound having an anthracenedyl group as a repeating unit, and a polymer compound having a pyrene diyl group as a repeating unit.
- a polymer compound having a fluorenediyl group as a repeating unit, a polymer compound having a benzofluorenedyl group as a repeating unit, a polymer compound having a thiophenyl group as a repeating unit, and a dibenzothiophenedyl group as a repeating unit examples thereof include a high molecular compound, a high molecular compound having a dibenzofurandyl group as a repeating unit, and a high molecular compound having a force rubazole diyl group as a repeating unit.
- Low molecular fluorescent materials include naphthalene derivatives, anthracene or derivatives thereof, perylene or derivatives thereof, polymethines, xanthenes, coumarins, cyanines, and other dyes, and metal complexes of 8-hydroxyquinoline or derivatives thereof.
- Body aromatic amine, tetraphenylcyclopentagen or a derivative thereof, or tetraphenylbutadiene or a derivative thereof.
- phosphorescent compounds include iridium complexes, platinum complexes, tungsten complexes, europium complexes, gold complexes, osmium complexes, and rhenium complexes, and groups containing these metal complexes in the main chain, side chain, or terminal. And the like.
- the coating liquid has a main chain containing a group containing a polymeric fluorescent material or a metal complex, It is preferable to include a polymer compound having a side chain or a terminal.
- the boiling point of the first solvent contained in the coating liquid of the present invention is less than 170 ° C. From the viewpoint of storage stability, the boiling point is preferably 35 ° C or higher, and is 100 ° C or higher. More preferably.
- the boiling point of the second solvent contained in the coating liquid of the present invention is 170 ° C. or higher, and is preferably 18 or higher from the viewpoint of reducing clogging of the slit. From the viewpoint of the process of volatilizing the solvent, the boiling point is preferably 30 or less, more preferably 280 ° C or less, and further preferably 250 ° C or less. Examples of the solvent contained in the coating liquid of the present invention include the following solvents.
- Examples of the first solvent include those having a boiling point of less than 1 70 of the following solvents, and examples of the second solvent include boiling points of 1 70 ° C. or more of the following solvents.
- Chloroform form (boiling point 61 ° C), methylene chloride (boiling point 40 ° C), 1,1-dichloroethane (boiling point 57), 1,2-dichloroethane (boiling point 83 ° C), 1, 1, 1- Aliphatic chlorinated solvents such as trichloroethane (boiling point 74 ° C), 1,1,2-trichloroethane (boiling point 1 1 3 ° C), black benzene (boiling point 1 32), o-dichloro (Boiling point 1 80 ° C), aromatic chlorinated solvents such as m-dichlorobenzene (boiling point 17 3 ° C), p-dichlorobenzen
- Hydrocarbon solvents acetone (boiling point 56 :), methyl ethyl ketone (boiling point 80 ° C), methylisobutyl ketone (boiling point 1 17 ° C), cyclohexanone (boiling point 1 56), 2 monoheptanone ( Boiling point 1 50 ° C), 3 One-heptanone (boiling point 147 ° C: measured at 765 mmHg), 4-Heptanone (boiling point 144 ° C), 2-Octanone (boiling point 1 74 ° C), 2-Nonanone (Boiling point 1 95 ° C), 2-decanone (boiling point 2 09 ° C) and other aliphatic ketone solvents, acetophenone (boiling point 202 ° C) and other aromatic ketone solvents, ethyl acetate (at boiling point 77), acetic acid Aliphatic ester solvents
- Solvent methanol ( Aliphatics such as boiling point 65 ° C), ethanol (boiling point 78 ° C), propanol (boiling point 97 ° C), isopropanol (boiling point 82 ° C), cyclohexanol (boiling point 16 ° C)
- Alcohol solvents Aliphatic sulfoxide solvents such as dimethyl sulfoxide (boiling point 37 ° C), N-methyl-2-pyrrolidone (boiling point 202 ° C), N, N-dimethylformamide (boiling point 15 Aliphatic amide solvents such as 3 ° C) are exemplified.
- the solvent contained in the coating liquid of the present invention includes aromatic hydrocarbon solvents, aliphatic hydrocarbon solvents, aromatic ester solvents from the viewpoint of solubility of organic compounds, flatness of thin films, viscosity characteristics, and the like. Solvents, aliphatic ester solvents, aromatic ketone solvents, aliphatic ketone solvents, aromatic ether solvents and aliphatic ether solvents are preferred.
- the first solvent is selected from the group consisting of an aromatic hydrocarbon solvent, an aromatic ester solvent, an aromatic ketone solvent, and an aromatic ether solvent from the viewpoint of the flatness of the thin film.
- a compound is preferable, and toluene, xylene, ethylbenzene, isopropylbenzene, anisole and mesitylene are preferable, and xylene, anisol and mesitylene are more preferable.
- the second solvent is an aromatic compound selected from the group consisting of an aromatic hydrocarbon solvent, an aromatic ester solvent, an aromatic ketone solvent, and an aromatic ether solvent from the viewpoint of thin film flatness.
- n-butylbenzene, isobutylbenzene, cyclohexylbenzene and tetralin are preferred, and cyclohexylbenzene and tetralin are more preferred.
- the first solvent when the first solvent is xylene and the second solvent is cyclohexylbenzene, the first solvent is xylene, and the second solvent
- the solvent when the solvent is tetralin, the first solvent is anisole, the second solvent is hexylbenzene, the first solvent is anisole, and the second solvent is tetralin
- the first solvent is mesitylene and the second solvent is cyclohexylbenzene
- the first solvent is preferably mesitylene
- the second solvent is preferably tetralin. From the viewpoint of the viscosity of the coating solution, both the first solvent and the second solvent are at 60 ° C.
- the solvent dissolves 1% by weight or more of an organic compound, and at least one of the first solvent and the second solvent dissolves 1% by weight or more of an organic compound at 25 ° C.
- a solvent is preferred.
- the weight of the second solvent contained in the coating liquid of the present invention is 0.5 to 0.5% from the viewpoint of reducing clogging of the slit and the flatness of the thin film with respect to the total weight of the coating liquid. It is preferably 99% by weight, more preferably 5 to 90% by weight.
- the thin film flat 14 is coated with the coating liquid discharged from the longitudinal end of the slit-like discharge port except for the portion formed at the start of coating and the portion formed at the end of coating.
- Evaluation is made in an area at least 5 mm away from the area.
- the film formed by applying the coating liquid of the present invention the film is discharged from the longitudinal end of the slit-like discharge port except for the part formed at the start of coating and the part formed at the end of coating.
- the film thickness of the area where the coating liquid is applied (hereinafter sometimes referred to as “edge film thickness”) may vary greatly.
- this film thickness difference causes uneven brightness, and therefore the film thickness difference and the region where the film thickness difference occurs are reduced. It is desirable.
- the weight of the second solvent contained in the coating liquid of the present invention is 0.5 to 30% by weight is preferred
- the weight of the first solvent contained in the coating solution of the present invention is 50 0 when the weight of the organic compound that is solid at 20 ° C. contained in the coating solution is 100 parts by weight. It is preferably ⁇ 5 00 0 0 parts by weight, more preferably 1 0 0 0 0 to 1 0 0 0 0 0 parts by weight. ''
- the weight of the second solvent contained in the coating liquid of the present invention is the organic compound contained in the coating liquid. When the weight of is 100 parts by weight, it is preferably 500 to 50000 parts by weight, and more preferably 1000 to 10000 parts by weight.
- the viscosity of the coating liquid of the present invention is preferably 1 to 2 OmPa ⁇ s from the viewpoint of preventing separation of the substrate and the coating liquid during coating, and 2 to: I 5mPa ⁇ s Is more preferable.
- the surface tension of the coating liquid of the present invention is preferably 10 to 70 mN, m, more preferably 20 to 5 OmNZm, from the viewpoint of the flatness of the thin film.
- the weight of the organic compound contained in the coating solution of the present invention is preferably 0.01 to 10% by weight, more preferably 0.1 to 5% by weight, based on the total weight of the coating solution. Good. If the amount is less than 01% by weight, the coating amount for obtaining the film thickness may increase.
- the vapor pressure of the coating liquid of the present invention is 25 ° (from 0.001 to 5 OmmHg from the viewpoint of preventing the adhesion of solid content in the slit and removing the solvent after coating.
- the coating liquid is not only an organic light emitting material
- Additives such as pore transport materials, electron transport materials, inorganic light-emitting materials, and qualifying agents ;!] Mouth preparations may be included as high-molecular weight high-molecular compounds for increasing viscosity (increased viscosity Agent), a poor solvent, a low molecular weight compound for reducing the viscosity, a surfactant for reducing the surface tension, etc., may be used in combination as appropriate. Any material that is soluble in the same solvent as the polymeric fluorescent material and does not interfere with light emission or charge transport.
- Polystyrene equivalent weight average molecule The amount is preferably 500,000 or more, more preferably 100 million or more.
- the coating liquid of the present invention may contain an antioxidant in order to improve storage stability.
- the antioxidant is not particularly limited as long as it is soluble in the same solvent as the polymeric fluorescent material and does not impede charge transport, and examples thereof include phenolic antioxidants and phosphorus antioxidants.
- the organic EL device of the present invention is an organic EL device manufactured by a manufacturing method including a step of applying the coating liquid of the present invention by a coating method in which the coating liquid is discharged from a slit-like discharge port.
- the structure of the organic EL device of the present invention has a light emitting layer between electrodes composed of a pair of an anode and a cathode, at least one of which is transparent or translucent. Among them, an organic compound is contained in the light emitting layer.
- Organic light emitting materials low molecular fluorescent materials, polymer fluorescent materials, phosphorescent compounds
- examples of the layer other than the cathode, the anode, and the light emitting layer include a layer provided between the cathode and the light emitting layer and a layer provided between the anode and the fluorescent layer.
- examples of the layer provided between the cathode and the light emitting layer include an electron injection layer, an electron transport layer, and a hole blocking layer.
- the layer in contact with the cathode is the electron injection layer, and the other layers Is called an electron transport layer.
- the electron injection layer is a layer having a function of improving the electron injection efficiency from the cathode
- the electron transport layer is a layer having a function of improving the electron injection from the electron injection layer or the electron transport layer closer to the cathode. is there.
- the electron injection layer or electron transport layer has a function of blocking hole transport
- these layers are sometimes referred to as hole blocking layers. Having the function of blocking hole transport makes it possible, for example, to produce a device that allows only hole current to flow, and confirm the blocking effect by reducing the current value.
- Examples of the layer provided between the anode and the light emitting layer include a hole injection layer, a hole transport layer, and an electron block layer.
- the hole injection layer is a layer that has the function of improving the efficiency of hole injection from the cathode, and the hole transport layer improves the hole injection from the hole injection layer or the hole transport layer closer to the anode. It is a layer having the function of When the hole injection layer or the hole transport layer has a function of blocking electron transport, these layers are sometimes referred to as an electron block layer.
- Examples of the structure of the organic EL device of the present invention include the following structures a) to d).
- the light emitting layer is a layer having a function of emitting light
- the hole transporting layer transports holes.
- the electron transport layer is a layer having a function of transporting electrons.
- the electron transport layer and the hole transport layer are collectively referred to as a charge transport layer.
- Two or more light emitting layers, hole transport layers, and electron transport layers may be used independently.
- the charge transport layers provided adjacent to the electrode those having the function of improving the charge injection efficiency from the electrode and having the effect of lowering the driving voltage of the element are particularly the charge injection layer (hole injection layer, electron (Injection layer).
- the charge injection layer or an insulating layer having a thickness of 2 nm or less may be provided adjacent to the electrode to improve the adhesion at the interface.
- a thin layer or a buffer layer may be inserted at the interface between the charge transport layer and the light emitting layer.
- the order and number of layers to be laminated, and the thickness of each layer can be appropriately used in consideration of the light emission efficiency and the element lifetime.
- the organic EL element provided with the charge injection layer includes an organic EL element provided with a charge injection layer adjacent to the cathode, and a charge injection layer adjacent to the anode.
- the flatness of the thin film formed by the coating method of coating the coating liquid is sufficiently high by the coating method of discharging the coating liquid from the slit-like discharge port, and the organic EL element It is used suitably for manufacture of the thin film which has.
- This coating liquid also has an effect of reducing clogging of slits, and can be applied repeatedly.
- the method for producing an organic EL device of the present invention is a method for producing an organic EL device comprising a step of coating the coating liquid of the present invention by a coating method in which the coating liquid is discharged from a slit-like discharge port.
- the thin film of the organic EL element is manufactured by applying the coating liquid of the present invention by a coating method in which the coating liquid is discharged from the slit-shaped discharge port.
- the thin film can be used for a light emitting layer, a hole transport layer, a hole injection layer, an electron block layer, an electron transport layer, an electron injection layer, a hole block layer, and the like.
- the manufacturing process of the organic EL element includes a step of applying the coating liquid of the present invention by a coating method in which the coating liquid is discharged from the slit-like discharge port to form a first thin film, and further on the first thin film.
- Forming a second thin film by applying the coating liquid by a coating method of discharging the coating liquid from the slit-like discharge port.
- the coating solution used for forming the first thin film and the coating solution used for forming the second thin film may be the same or different, but are different from the viewpoint of improving the device characteristics of the organic EL device. Preferably it is.
- the combination of the first thin film and the second thin film includes a combination in which the first thin film is a hole injection layer and the second thin film is a light emitting layer, and the first thin film is a hole transport layer and the second thin film.
- the first thin film is an electron block layer and the second thin film is a light emitting layer, and the first thin film is a hole injection layer and the second thin film is a hole transport layer.
- the first thin film is a light emitting layer and the second thin film is an electron transport layer.
- the viscosity of the coating solution was measured at 20 ° C. using LV DV—I I + P ro CP (manufactured by BROOKF I ELD). Measuring method of surface tension>
- the surface tension of the coating solution was measured at 20 ° C with OCA20 (Eihiro Seiki Co., Ltd.). ⁇ Glass substrate>
- the glass substrate 1 71 3 glass, size 19 OmmX 19 Omm (manufactured by Coining Co., Ltd.) was used after being cleaned with an SPBC-200M spin cleaning machine (manufactured by Micro Engineering Co., Ltd.). Immediately before coating, UV cleaning of the glass substrate was performed using Model 1 208UV-03C l e ani ng System (manufactured by T CHNOV I SON). Coating method>
- CAP Coater III manufactured by Hirano Techseed Co., Ltd. was used as a coating apparatus for the canary coat method.
- the discharge port of this coating device was rectangular, the long side length was 240 mm, and the short side length was 0.3 mm.
- the flatness of the film formed by coating on a glass substrate and drying under reduced pressure of 1 X 1 CT 2 Pa or less for 5 minutes was determined as a 1 ph a-step 250 (TENCOR I NSTRUMEN Observed by TS).
- alpha step except the part formed at the start of coating, the part formed at the end of coating, and the area where the coating liquid discharged from the longitudinal end of the slit-like discharge port was applied, Measurements were made at three arbitrary locations of 200 / im width, and the evaluation was performed using the center line average roughness Ra and the maximum uneven height.
- the center line average roughness R a is a value obtained by dividing the roughness curve from the center line and dividing the area obtained by the roughness curve and the center line by the measured width.
- the substrate was placed on the sample stage, the coating of the liquid coating, the replacement of the substrate, and the coating of the liquid coating were repeated 10 times. We measured how many sheets can be continuously processed.
- the film thickness of the wedge portion was measured using a stylus type film thickness meter P-16 + manufactured by TENC0R.
- Organic Luminescent Material Luma tion GP 1300 (Gr eenl 300) (manufactured by Samesion) Add 50 g of anisole (boiling point 154) and 50 g of cyclohexyl benzene (boiling point 235 to 236 ° C) to lg.
- Coating solution 1 was prepared.
- the weight of the organic light-emitting material is 1.0 weight 0 / with respect to the total weight of the coating solution for the first coat. Met.
- the viscosity of the first coat coating solution 1 was 6.3 mPa ⁇ s, and the surface tension was 32.lmNZm.
- the coating solution 1 of the chiral coat was applied under the conditions of a coating speed of 0.3 m / min, a liquid surface height of 10 mm, and a coating gear gap of 220 ⁇ m.
- Table 1 shows the results of evaluating the flatness of the film after film formation.
- Organic Luminescent Material Luma tion GP 1 300 (Gr eenl 300) (manufactured by Sumation) 1 g of toluene (boiling point 1 1 1 ° C) 100 g was prepared to prepare a mild coat coating solution 2 .
- the weight of the organic light emitting material was 1.0% by weight with respect to the total weight of the capillary coat coating solution.
- the viscosity of the one-coat coating liquid 2 was 2.5 mPa ⁇ s, and the surface tension was 26. niNZm.
- Figure 1 shows the film thickness distribution of the thin film formed using the Capillary Coat Coating Solution 3 and the thin film formed using the Capillary Coat Coating Solution 4.
- the region where the film thickness of the edge portion of the thin film formed using Capillary Coat Coating Solution 4 in which the weight of hexylbenzene is 50% by weight with respect to the total weight of the coating solution is 5 mm is 5 mm.
- the region where the film thickness of the wedge portion of the thin film formed using the capillary coat coating solution 3 in which the weight of the hexylbenzene is 20% by weight with respect to the total weight of the coating solution is 2.
- the film thickness is 5 mm or less, and the film thickness of the thin film formed using the coating solution for the chiral coating 3 is larger in the area where the coating liquid discharged from the longitudinal end of the slit-shaped discharge port is applied. It was found that the fluctuation area was small.
- the flatness of the thin film can be sufficiently increased.
- the coating liquid of the present invention is useful for producing an organic electoluminescence device or the like, and is extremely useful industrially.
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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CN200880115535A CN101855308A (zh) | 2007-11-16 | 2008-11-14 | 从狭缝状喷口喷出涂布液的涂布法用的涂布液 |
EP08849429A EP2216380A1 (en) | 2007-11-16 | 2008-11-14 | Coating liquid used in coating method for discharging coating liquid through slit-shaped discharge outlet |
US12/741,779 US20100243960A1 (en) | 2007-11-16 | 2008-11-14 | Coating solution for application method of discharging coating solution through slit-like discharge port |
Applications Claiming Priority (2)
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JP2007297728 | 2007-11-16 | ||
JP2007-297728 | 2007-11-16 |
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WO2009064026A1 true WO2009064026A1 (ja) | 2009-05-22 |
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US (1) | US20100243960A1 (ja) |
EP (1) | EP2216380A1 (ja) |
JP (1) | JP2009140922A (ja) |
KR (1) | KR20100097149A (ja) |
CN (1) | CN101855308A (ja) |
TW (1) | TW200930467A (ja) |
WO (1) | WO2009064026A1 (ja) |
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US10256408B2 (en) | 2010-04-12 | 2019-04-09 | Merck Patent Gmbh | Composition and method for preparation of organic electronic devices |
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Also Published As
Publication number | Publication date |
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EP2216380A1 (en) | 2010-08-11 |
TW200930467A (en) | 2009-07-16 |
US20100243960A1 (en) | 2010-09-30 |
KR20100097149A (ko) | 2010-09-02 |
JP2009140922A (ja) | 2009-06-25 |
CN101855308A (zh) | 2010-10-06 |
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