WO2006073053A1 - 液晶シール剤及びそれを用いた液晶表示セル - Google Patents
液晶シール剤及びそれを用いた液晶表示セル Download PDFInfo
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- WO2006073053A1 WO2006073053A1 PCT/JP2005/023353 JP2005023353W WO2006073053A1 WO 2006073053 A1 WO2006073053 A1 WO 2006073053A1 JP 2005023353 W JP2005023353 W JP 2005023353W WO 2006073053 A1 WO2006073053 A1 WO 2006073053A1
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- liquid crystal
- epoxy resin
- crystal sealant
- bisphenol
- weight
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
- C08L63/10—Epoxy resins modified by unsaturated compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/38—Polymers
- C09K19/3833—Polymers with mesogenic groups in the side chain
- C09K19/3842—Polyvinyl derivatives
- C09K19/3852—Poly(meth)acrylate derivatives
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- 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
- G02F1/1339—Gaskets; Spacers; Sealing of cells
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/34—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
- C09K19/3402—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having oxygen as hetero atom
- C09K19/3411—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having oxygen as hetero atom the heterocyclic ring being a three-membered ring
Definitions
- the present invention relates to a liquid crystal sealant and a liquid crystal display cell using the same. More specifically, after the liquid crystal is dropped on the inside of the wall of the liquid crystal sealant formed around one substrate, the liquid crystal is sealed by bonding the other substrate and curing the liquid crystal sealant.
- the present invention relates to a liquid crystal sealing agent that can be used for manufacturing a liquid crystal display cell and a liquid crystal display cell manufactured using the same.
- the liquid crystal sealant first contacts the liquid crystal in an uncured state. At that time, the liquid crystal sealant component dissolves in the liquid crystal and lowers the specific resistance of the liquid crystal. There is a problem that such a defect occurs, and further improvement in reliability is required.
- thermosetting method In addition to the liquid crystal dropping method, three methods are considered as a method for curing the liquid crystal sealant after the substrates are bonded together: a thermosetting method, a photocuring method, and a photothermal curing combined method.
- thermosetting method the viscosity of the liquid crystal sealant that has been reduced in viscosity due to the expansion of the liquid crystal due to heating leaks the liquid crystal. T ⁇ ⁇ Problem and the components of the liquid crystal sealant that has been reduced in viscosity are dissolved in the liquid crystal These problems are difficult to solve. Therefore, the thermosetting method has not been put into practical use yet.
- the liquid crystal sealant used in the photocuring method there are two types, a force thione polymerization type and a radical polymerization type, depending on the type of the photopolymerization initiator.
- a force thione polymerization type liquid crystal sealant ions are generated during photocuring, so when this is used in the liquid crystal dropping method, the ionic components are eluted in the liquid crystal in the contact state and the specific resistance of the liquid crystal is lowered.
- the radical polymerization type liquid crystal sealing agent has a problem that the adhesive strength is not sufficient because the curing shrinkage during photocuring is large.
- liquid crystal sealant is exposed to light by the metal wiring portion of the array substrate of the liquid crystal display cell and the black matrix portion of the color filter substrate. Since there is a light-shielding portion that does not hit, the light-shielding portion becomes uncured.
- thermosetting method and the photocuring method have various problems, and the photothermal curing combined method is actually adopted as the most practical method.
- the photothermal curing combined method is characterized in that the liquid crystal sealant sandwiched between the substrates is irradiated with light to be first cured and then heated to be secondarily cured. It is important that the liquid crystal sealant used in the photothermographic combination method does not contaminate the liquid crystal before and after light irradiation and before and after heat curing. Is difficult to elute into the liquid crystal composition! It is important that it is composed of soot ingredients.
- Patent Document 3 as a liquid crystal sealant for a dripping method, a proposal has been made to use a bisphenol A type epoxy resin that has a partial (meth) atari toy resin as described in Patent Document 4 as the main component of the resin. (See Patent Document 3 and Patent Document 4).
- (meth) atrelate toy reduces the solubility in the liquid crystal
- the liquid crystal sealant combined with photothermal curing for the liquid crystal dropping method that has been proposed conventionally has all the liquid crystal contamination, adhesive strength, pot life at room temperature, low temperature curability and the like. It's not something you can be satisfied with!
- Patent Document 1 Japanese Patent Application Laid-Open No. 63-179323
- Patent Document 2 Japanese Patent Laid-Open No. 10-239694
- Patent Document 3 Japanese Patent Laid-Open No. 2001-133794
- Patent Document 4 Japanese Patent Laid-Open No. 5-295087
- the sealing agent for liquid crystal dropping method includes bisphenol type epoxy resin. Fat partial acrylic casings are mainly used. However, the partial acrylic body of bisphenol type epoxy resin easily elutes when it comes into contact with the liquid crystal or when heated in contact with the liquid crystal. As a result, there was a problem of reducing the reliability of the panel.
- the entire acrylic resin of bisphenol type epoxy resin is relatively difficult to elute into the liquid crystal, but it is not always sufficient.
- the viscosity is high, there is a problem that there is a great restriction on other components that can be used in the liquid crystal sealant composition.
- the present invention is used in a liquid crystal dropping method in which a liquid crystal display cell is manufactured by dropping a liquid crystal on the inside of a wall of a liquid crystal sealant formed around one substrate and then bonding the other substrate.
- the liquid crystal sealant has a very low contamination to the liquid crystal throughout the process, and there is almost no elution of the sealant component into the liquid crystal even in the light shielding part.
- the inventors of the present invention have completed the present invention as a result of intensive studies to solve the above-mentioned problems.
- the present invention realizes a liquid crystal sealing material having a very low compatibility and excellent adhesion by using as a main component (meth) acrylate of epoxy resin having a specific structure, which has extremely low compatibility with liquid crystal compositions. It is.
- a liquid crystal sealant characterized in that the proportion of p, p 'isomers in the bisphenol F monomer unit comprising (c) and constituting the epoxy resin (A) is 40% or more,
- the polymerization initiator (b) is a radical photopolymerization initiator (1) to the liquid crystal sealing agent according to any one of (5),
- liquid crystal sealant according to any one of (1) to (6), further comprising an epoxy resin (d) and a thermosetting agent (e),
- Epoxy resin (d) has a flow-out amount of 0.5 wt.% When the epoxy resin is placed in direct contact with a 10-fold weight liquid crystal and left at 120 ° C for 1 hour.
- the liquid crystal sealant according to (7) which is an epoxy resin that is less than
- Thermosetting agent (e) is a dihydrazide (7) or (8) liquid crystal sealing agent according to,
- the present invention it was possible to obtain a liquid crystal sealant having excellent adhesive strength and low liquid crystal contamination.
- the liquid crystal sealing agent of the present invention for the liquid crystal dropping method, it has become possible to produce a liquid crystal display cell with excellent reliability.
- the liquid crystal sealant of the present invention is characterized by containing, as a main component, a resin (a) obtained by converting the epoxy resin (A) represented by the formula (1) into a (meth) atalyloyl.
- the epoxy resin represented by the formula (1) can be obtained by reacting P, P′-bisphenol F with epihalohydrin by a conventional method.
- bisphenol F is usually o, o, monobisphenol F (o, o, isomer), o, p, monobisphenol F (o, p, isomer), p, p, —bisphenol F (p , p, isomers), and the epoxy resin produced from this is also a mixture of structural isomers.
- the inventors of the present invention have a high proportion of the p, p ′ isomer in the bisphenol F monomer unit constituting the epoxy resin (A) represented by the formula (1), and the epoxy resin (A) (Meta) Atalloy Roy's Coffin (a) has been found to have low elution properties for liquid crystals, and in order to reduce the elution components to liquid crystals, it is a structural isomer of p and p 'isomers. It is effective to reduce the proportion of certain o, o 'isomers and o, p' isomers.
- the proportion of the o, o, isomer and o, p 'isomer in the bisphenol F monomer unit constituting the epoxy resin (A) of the formula (1) used as a raw material for the (meth) acrylate resin is 60 Less than 30% is preferred, more preferably less than 30%, and even more preferably less than 10%. That is, p, p, isomers in the bisphenol F monomer unit constituting the epoxy resin (A) of the formula (1) used as a raw material of (meth) acrylate resin
- the ratio force is preferably 0% or more, more preferably 70% or more, and still more preferably 90% or more. Further, from the viewpoint of viscosity, workability, etc.
- the epoxy equivalent of the raw material epoxy resin (A) suitable for use as the main raw material of the sealant is preferably 300 gZeq or less, more preferably 200 gZeq or less. If the epoxy equivalent is higher than 300 eqZg, the viscosity of the sealant becomes too high, making it difficult to dispense and may cause problems such as poor seal shape. In order to adjust the workability, other types of (meth) atallyloyl group-containing resin may be added within the range that does not impair the contamination, but the liquid crystal sealant for epoxy (meth) atrelate resin (a) On the other hand, the content is preferably 30 to 80% by weight, more preferably 40 to 70% by weight.
- the content of (a) is less than 30% by weight, the ratio of other components that are likely to be eluted with respect to the liquid crystal becomes high, so that the liquid crystal contamination tends to deteriorate.
- the content of (a) is more than 80% by weight, the shrinkage due to photocuring tends to increase, which tends to cause problems such as low adhesive strength.
- the epoxy resin (A) represented by the formula (1) is (meth) atariloy-coated, and the epoxy groups at both ends in the formula (1) are both (meth) attalyloyed.
- the power of rosin shall also include partially (meth) atalyloylated rosin, in which either epoxy group has been (meth) attalyroylated.
- any photopolymerization initiator such as a radical type photopolymerization initiator or a caton type photopolymerization initiator may be used, but from the viewpoint of liquid crystal contamination.
- a radical photopolymerization initiator is preferred.
- radical photopolymerization initiators examples include benzyl dimethyl ketal, 1-hydroxycyclohexyl phenyl ketone, dimethyl thioxanthone, benzophenone, 2-ethyl anthraquinone, 2-hydroxy 2-methyl propiophenone, 2-methyl- [4 (Methylthio) phenol] 2 morpholino 1-propane, 2, 4, 6 trimethylbenzoyldiphenylphosphine oxide, etc., but the effect on the liquid crystal properties is relatively small, i line An initiator having sensitivity in the vicinity of (365 nm) and low liquid crystal contamination is preferable. Specific examples of such an initiator include 3,6 bis (2-methyl-2-morpholinopropiool) 9-n-octylcarbazole.
- the blending ratio of the photopolymerization initiator (b) to the component (a) is (a) 0.01 to 100 parts by weight of component: L0 part by weight is preferred, and particularly preferably about 0.1 to 3 parts by weight.
- the inorganic filler (c) used in the present invention includes fused silica, crystalline silica, silicon carbide, silicon nitride, boron nitride, calcium carbonate, magnesium carbonate, barium sulfate, calcium sulfate, my strength, talc, Clay, alumina, magnesium oxide, zirconium oxide, aluminum hydroxide, magnesium hydroxide, calcium silicate, aluminum silicate, lithium aluminum silicate, zirconium silicate, barium titanate, glass fiber, carbon fiber, molybdenum disulfide, asbestos Preferred are fused silica, crystalline silica, silicon nitride, boron nitride, calcium carbonate, barium sulfate, calcium sulfate, my strength, tar, clay, alumina, aluminum hydroxide, calcium silicate, and aluminum silicate.
- the particle size of the inorganic filler is required to be sufficiently smaller than the liquid crystal cell gap, and is preferably not more than the average particle size, more preferably not more than 1 m in average particle size.
- the lower limit is usually about 0.003 m.
- the average particle size of the inorganic filler is measured by a laser diffraction / scattering particle size distribution meter (dry type) (manufactured by Seishin Enterprise Co., Ltd .; LMS-30).
- the content of the inorganic filler (c) used in the present invention in the liquid crystal sealant is usually 5 to 40% by weight, preferably 15 to 30% by weight.
- the filler content is lower than 5% by weight, the adhesion strength to the glass substrate is lowered, and the moisture resistance reliability is inferior, so that the adhesion strength after moisture absorption is also greatly reduced.
- the filler content is more than 40% by weight, the filler content is too high, so that the liquid crystal cell gap tends to be difficult to collapse.
- the liquid crystal sealant of the present invention may further contain an epoxy resin (d) and a thermosetting agent (e).
- an epoxy resin (d) and a thermosetting agent (e) By adding the epoxy resin (d) and the thermosetting agent (e), the adhesion reliability can be greatly improved.
- the epoxy resin (d) used in the present invention is not particularly limited, but from the viewpoint of liquid crystal contamination, the epoxy resin (d) is brought into direct contact with a liquid crystal 10 times the weight of the epoxy resin (d). At 120 ° C An epoxy resin that does not elute 0.5% by weight or more with respect to the liquid crystal when left standing for 1 hour is preferable. As such an epoxy resin, for example,
- a resorcin diglycidyl ether multimer represented by formula (3) (manufactured by Nippon Kayaku Co., Ltd .; D
- the number p of repeating units is in the range of 0 to 20.
- the elution amount can be quantified by gas chromatography using pentadecane as an internal standard substance.
- the amount of hydrolyzable chlorine in the epoxy resin (d) used in the present invention is 600 ppm or less, preferably 300 ppm or less. When the amount of hydrolyzable chlorine exceeds 600 ppm, the contamination of the liquid crystal sealant on the liquid crystal becomes a problem.
- the amount of hydrolyzable chlorine is determined by, for example, dissolving about 0.5 g of epoxy resin in 20 ml of dioxane, refluxing with 5 ml of 1N KOHZ ethanol solution for 30 minutes, and titrating with 0.01 N silver nitrate solution. be able to.
- the content of the strong epoxy resin (d) in the liquid crystal sealant is preferably 5 to 70% by weight, more preferably about 10 to 50% by weight in the liquid crystal sealant.
- thermosetting agent (e) used in the present invention is not particularly limited as long as it can react with an epoxy resin to form a cured product. It is important that the reaction be started quickly and uniformly without contaminating the liquid crystal, and that when used, there is little change in viscosity over time at room temperature.
- thermosetting condition in the case of the liquid crystal dropping method, a low temperature curing ability at 120 ° C. for about 1 hour is generally required in order to minimize deterioration of the characteristics of the liquid crystal to be enclosed.
- the polyfunctional dihydrazides in this case refer to those having two or more hydrazide groups in the molecule. Specific examples thereof include carbohydrazide, oxalic acid dihydrazide, malonic acid dihydrazide, succinic acid dihydrazide, Adipic acid dihydrazide, adipic acid dihydrazide, Melic acid dihydrazide, suberic acid dihydrazide, azelaic acid dihydrazide, sebacic acid dihydrazide, dodecandiodihydrazide, hexadecandiohydrazide, maleic acid dihydrazide, fumaric acid dihydrazide, diglycolic acid dihydrazide, tartaric acid dihydrazide , Isophthalic acid dihydrazide, terephthalic acid dihydrazide, 2, 6 naphthoic acid dihydrazide, 4, 4 bisbenzene dihydrazide,
- polyfunctional dihydrazide When polyfunctional dihydrazide is used as a curing agent, it is preferable to make the particle size finely dispersed uniformly in order to make it a latent curing agent.
- dihydrazides preferred are dihydrazides, and particularly preferred from the viewpoint of liquid crystal contamination, are diphthalazides having an isophthalic acid dihydrazide and a nordine hydantoin skeleton.
- the polyhydric phenols include, but are not limited to, bisphenol A, bisphenol F, bisphenol S, bisphenol E, phenol novolak, and the like.
- the average particle size of component (e) is too large, it will cause defects such as inadequate gap formation when laminating the upper and lower glass substrates when manufacturing a narrow gap liquid crystal cell. Is more preferably 2 m or less. Similarly, the maximum particle size is preferably 8 m or less, more preferably 5 m or less.
- the particle size of the curing agent was measured by a laser diffraction / scattering type particle size distribution analyzer (dry type) (manufactured by Seishin Enterprise Co., Ltd .; LMS-30). The average particle size is preferably adjusted so as not to be extremely small (for example, 0.1 m or less).
- the compounding ratio of the component (e) is preferably 0.5 to 3 equivalents relative to the equivalent of the epoxy group of the component (d), more preferably 0.7 to 2 Is equivalent.
- the amount of the component (e) is less than 0.5 equivalent, the thermosetting reaction is insufficient, and the adhesive force and the glass transition point may be lowered.
- the equivalent is more than 3, the curing agent remains, the adhesive strength is lowered, and the pot life may be deteriorated.
- the sealing agent of the present invention preferably contains a silane coupling agent (f).
- silane coupling agents include 3-glycidoxypropyl pyrtrimethoxysilane, 3-glycidoxypropinoremethinoresinmethoxysilane, 3-glycidoxypropylmethyldimethoxysilane, 2- (3,4-epoxycyclohexyl) Ethyltrimethoxysilane, N-phenenoyl ⁇ -aminopropyltrimethoxysilane, ⁇ — (2-aminoethyl) 3-aminopropylmethyldimethoxysilane, ⁇ — (2-aminoethyl) 3-aminopropylmethyltrimethoxysilane, 3-Aminopropyltriethoxysilane, 3-Mercaptopropyltrimethoxysilane, Buttrimethoxysilane, ⁇ — (2- (Bubenzylbenzylamino) ethyl) 3-Aminopropyltrimethoxysilane hydrochloride, 3— Me
- the silane coupling agent is preferably a silane coupling material having an epoxy group or an amino group.
- the content of the silane coupling agent (f) in the liquid crystal sealant is usually about 0.01 to 5% by weight in the liquid crystal sealant.
- liquid crystal sealant according to the present invention may further contain organic fillers and additives such as pigments, leveling agents, and antifoaming agents.
- the component (a), the component (b), and the component (d) are first dissolved and mixed.
- inorganic filler (c), component (e), and a predetermined amount of antifoaming agent, leveling agent, organic filler, etc. are added to this mixture as necessary, and a known mixing device such as 3 bottles is added.
- the liquid crystal sealant of the present invention can be produced by uniformly mixing with a roll mill, sand mill, ball mill or the like.
- the liquid crystal display cell of the present invention a pair of substrates each having a predetermined electrode formed on the substrate are arranged opposite to each other at a predetermined interval, the periphery is sealed with the liquid crystal sealant of the present invention, and the liquid crystal is sealed in the gap. It has been entered.
- the kind of liquid crystal to be sealed is not particularly limited.
- the substrate is composed of a combination of substrates having optical transparency in at least one of glass, quartz, plastic, silicon and the like.
- the liquid crystal sealing agent is applied to one of the pair of substrates.
- the liquid crystal sealant After applying the liquid crystal sealant with a dispenser or the like, a liquid crystal is dropped inside the liquid crystal sealant, and the other glass substrate is stacked in a vacuum to create a gap. After forming the gap, the liquid crystal seal is irradiated with ultraviolet rays by an ultraviolet irradiator and photocured.
- the ultraviolet irradiation amount is preferably 500 mjZcm 2 to 6000 mjZcm 2 , and more preferably 1000 mjZcm 2 to 4000 mjZcm 2 .
- the liquid crystal display cell of the present invention can be obtained by curing at 90 to 130 ° C. for 1 to 2 hours.
- the liquid crystal display cell of the present invention thus obtained has excellent adhesion and moisture resistance reliability with no display failure due to liquid crystal contamination.
- the spacer include glass fiber, silica beads, and polymer beads. Its diameter varies depending on the purpose, usually 1-8 ⁇ m, preferably 2-6 / ⁇ ⁇ .
- the amount used is usually about 0.1 to 4 parts by weight, preferably 0.5 to 2 parts by weight, more preferably about 0.9 to 1.5 parts by weight with respect to 100 parts by weight of the liquid crystal sealant of the present invention. .
- Bisphenol F epoxy resin (RE-602, p, p 'isomer purity 99.7%, epoxy equivalent 164 g / eq, manufactured by Nippon Gyaku Co., Ltd.) is dissolved in toluene, and dibutyl is used as a polymerization inhibitor. Hydroxytoluene was added and the temperature was raised to 60 ° C. Thereafter, acrylic acid having 100% equivalent of epoxy group was heated up to 80 ° C., trimethyl ammonium chloride as a reaction catalyst was added thereto, and the mixture was stirred at 98 ° C. for about 50 hours. The obtained reaction solution was washed with water and toluene was distilled off to obtain the desired epoxy acrylate of bisphenol F (EpoxyacrylateA).
- Bisphenol F epoxy resin (manufactured by Nippon Gyaku Co., Ltd., RE-303P, p, p 'isomer 2 8%, o, p, isomer 54%, o, o, isomer 17%, epoxy equivalent 160gZeq ) Is dissolved in toluene, and dibutylhydroxytoluene is added as a polymerization inhibitor, and the temperature is raised to 60 ° C. It was. Thereafter, acrylic acid with 100% equivalent of epoxy group was heated to 80 ° C, trimethyl ammonium chloride as a reaction catalyst was added thereto, and stirred at 98 ° C for about 50 hours. The obtained reaction solution was washed with water, and toluene was distilled off to obtain a control epoxy acrylate of bisphenol F (Epoxyacrylate B).
- EpoxyacrylateA poxyacrylate B Bis F epoxy acrylate o, o 'isomer 1 0 9 20 0 Bis F epoxy acrylate o, p' isomer 2 0 9 8 0 Bis F epoxy acrylate p, p 'Isomer 9 6 0 3 3 0
- Epoxyacrylate A from Synthesis Example 1 80 parts by weight of Epoxyacrylate A from Synthesis Example 1 as epoxy resin RE-203 (manufactured by Nippon Kayaku Co., Ltd .; epoxy equivalent 232 gZeq, diglycidyl ether of bisphenol S with ethylene oxide), radical photopolymerization 3, 6 bis (2-methyl-2-morpholinopropiool) 9 n-octylcarbazole (Adeka optomer N-1414) manufactured by Asahi Denka Kogyo Co., Ltd. 1.
- aminosilane coupling agent N — ⁇ (Aminoethyl) ⁇ -Aminopropyltrimethoxysilane (manufactured by Shin-Etsu Silicone Co., Ltd., 2-603) 1. 2 parts by weight were heated and dissolved at 90 ° C. to obtain a resin solution. After cooling to room temperature, adipic acid dihydrazide (trade name: ADH—S; jet mill pulverized grade made by Otsuka Yigaku Co., Ltd., finely pulverized with a jet mill, melting point 190 ° C, active hydrogen equivalent 43.5 gZeq, average particle size Diameter 1.
- ADH—S jet mill pulverized grade made by Otsuka Yigaku Co., Ltd.
- a liquid crystal sealant of Comparative Example 1 was obtained in the same manner as in Example 1 except that Epoxyacrylate A of Example 1 was changed to Epoxyacrylate B of Synthesis Example 2.
- the viscosity (25 ° C) of the liquid crystal sealant was 300 Pa's (R-type viscometer (manufactured by Toki Sangyo Co., Ltd.)).
- the obtained liquid crystal sealant was sandwiched between polyethylene terephthalate (PET) films and made into a thin film with a thickness of 100 m. After irradiating with 2000 mj / cm 2 ultraviolet rays with a UV irradiator, it was put into a 120 ° C oven for 1 hour. After curing, the PET film was peeled off to prepare a sample. TMA tester (manufactured by Vacuum Riko Co., Ltd.) Measures glass transition point in tensile mode did. The results are shown in Table 2.
- the liquid crystal sealant of No. 1 is a liquid crystal sealant having excellent reliability with respect to the liquid crystal contamination with less elution than the liquid crystal sealant of Comparative Example 1.
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Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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US11/794,637 US20090275255A1 (en) | 2005-01-06 | 2005-12-20 | Liquid crystal sealing material and liquid crystal display cells made by using the same |
KR1020077015284A KR101312419B1 (ko) | 2005-01-06 | 2005-12-20 | 액정 실링제 및 이것을 사용한 액정표시 셀 |
JP2006550691A JP4996260B2 (ja) | 2005-01-06 | 2005-12-20 | 液晶シール剤及びそれを用いた液晶表示セル |
EP05820077A EP1835333B1 (en) | 2005-01-06 | 2005-12-20 | Liquid crystal sealing material and liquid crystal display cells made by using the same |
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JP2005001833 | 2005-01-06 | ||
JP2005-001833 | 2005-01-06 |
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WO2006073053A1 true WO2006073053A1 (ja) | 2006-07-13 |
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PCT/JP2005/023353 WO2006073053A1 (ja) | 2005-01-06 | 2005-12-20 | 液晶シール剤及びそれを用いた液晶表示セル |
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US (1) | US20090275255A1 (ja) |
EP (1) | EP1835333B1 (ja) |
JP (1) | JP4996260B2 (ja) |
KR (1) | KR101312419B1 (ja) |
CN (1) | CN100533233C (ja) |
TW (1) | TWI403528B (ja) |
WO (1) | WO2006073053A1 (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007316624A (ja) * | 2006-04-25 | 2007-12-06 | Sekisui Chem Co Ltd | 液晶滴下工法用シール剤、上下導通材料、及び、液晶表示装置 |
JP2008096575A (ja) * | 2006-10-10 | 2008-04-24 | Dainippon Ink & Chem Inc | シール剤用光硬化性組成物、液晶シール剤、及び液晶パネル |
JP2010277072A (ja) * | 2009-04-28 | 2010-12-09 | Nippon Kayaku Co Ltd | 液晶シール剤及びそれを用いた液晶表示セル |
WO2010143569A1 (ja) * | 2009-06-11 | 2010-12-16 | 日本化薬株式会社 | 可視光硬化性液晶シール剤及びそれを用いた液晶表示セル |
JP2011008220A (ja) * | 2009-06-24 | 2011-01-13 | Samsung Electronics Co Ltd | 封止剤、これを有する表示装置及びその製造方法 |
WO2011118191A1 (ja) * | 2010-03-26 | 2011-09-29 | 三井化学株式会社 | 液晶シール剤、それを用いた液晶表示パネルの製造方法、および液晶表示パネル |
JP2019112622A (ja) * | 2017-12-25 | 2019-07-11 | 日本化薬株式会社 | ディスプレイ用封止剤 |
JP2019112621A (ja) * | 2017-12-25 | 2019-07-11 | 日本化薬株式会社 | ディスプレイ用封止剤 |
Families Citing this family (3)
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TWI395027B (zh) | 2009-05-01 | 2013-05-01 | Ind Tech Res Inst | 框膠組成物 |
KR101201720B1 (ko) | 2010-07-29 | 2012-11-15 | 삼성디스플레이 주식회사 | 표시 장치 및 유기 발광 표시 장치 |
KR20230172125A (ko) | 2022-06-15 | 2023-12-22 | 이봉재 | 다양한 모양으로 변형이 가능한 장의자 |
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- 2005-12-20 WO PCT/JP2005/023353 patent/WO2006073053A1/ja active Application Filing
- 2005-12-20 EP EP05820077A patent/EP1835333B1/en not_active Expired - Fee Related
- 2005-12-20 CN CNB2005800460112A patent/CN100533233C/zh not_active Expired - Fee Related
- 2005-12-20 JP JP2006550691A patent/JP4996260B2/ja not_active Expired - Fee Related
- 2005-12-20 US US11/794,637 patent/US20090275255A1/en not_active Abandoned
- 2005-12-20 KR KR1020077015284A patent/KR101312419B1/ko not_active IP Right Cessation
- 2005-12-26 TW TW094146571A patent/TWI403528B/zh not_active IP Right Cessation
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Cited By (9)
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JP2007316624A (ja) * | 2006-04-25 | 2007-12-06 | Sekisui Chem Co Ltd | 液晶滴下工法用シール剤、上下導通材料、及び、液晶表示装置 |
JP2008096575A (ja) * | 2006-10-10 | 2008-04-24 | Dainippon Ink & Chem Inc | シール剤用光硬化性組成物、液晶シール剤、及び液晶パネル |
JP2010277072A (ja) * | 2009-04-28 | 2010-12-09 | Nippon Kayaku Co Ltd | 液晶シール剤及びそれを用いた液晶表示セル |
WO2010143569A1 (ja) * | 2009-06-11 | 2010-12-16 | 日本化薬株式会社 | 可視光硬化性液晶シール剤及びそれを用いた液晶表示セル |
JP2011008220A (ja) * | 2009-06-24 | 2011-01-13 | Samsung Electronics Co Ltd | 封止剤、これを有する表示装置及びその製造方法 |
WO2011118191A1 (ja) * | 2010-03-26 | 2011-09-29 | 三井化学株式会社 | 液晶シール剤、それを用いた液晶表示パネルの製造方法、および液晶表示パネル |
JPWO2011118191A1 (ja) * | 2010-03-26 | 2013-07-04 | 三井化学株式会社 | 液晶シール剤、それを用いた液晶表示パネルの製造方法、および液晶表示パネル |
JP2019112622A (ja) * | 2017-12-25 | 2019-07-11 | 日本化薬株式会社 | ディスプレイ用封止剤 |
JP2019112621A (ja) * | 2017-12-25 | 2019-07-11 | 日本化薬株式会社 | ディスプレイ用封止剤 |
Also Published As
Publication number | Publication date |
---|---|
KR20070097482A (ko) | 2007-10-04 |
US20090275255A1 (en) | 2009-11-05 |
TW200640977A (en) | 2006-12-01 |
JP4996260B2 (ja) | 2012-08-08 |
EP1835333A1 (en) | 2007-09-19 |
EP1835333A4 (en) | 2008-05-21 |
JPWO2006073053A1 (ja) | 2008-06-12 |
EP1835333B1 (en) | 2009-02-25 |
TWI403528B (zh) | 2013-08-01 |
CN100533233C (zh) | 2009-08-26 |
KR101312419B1 (ko) | 2013-09-27 |
CN101099108A (zh) | 2008-01-02 |
EP1835333A8 (en) | 2007-12-12 |
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