[go: up one dir, main page]

WO2018038212A1 - Procédé de fabrication d'un dispositif d'affichage d'image - Google Patents

Procédé de fabrication d'un dispositif d'affichage d'image Download PDF

Info

Publication number
WO2018038212A1
WO2018038212A1 PCT/JP2017/030351 JP2017030351W WO2018038212A1 WO 2018038212 A1 WO2018038212 A1 WO 2018038212A1 JP 2017030351 W JP2017030351 W JP 2017030351W WO 2018038212 A1 WO2018038212 A1 WO 2018038212A1
Authority
WO
WIPO (PCT)
Prior art keywords
curable resin
image display
group
meth
resin layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2017/030351
Other languages
English (en)
Japanese (ja)
Inventor
祐樹 宮本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Resonac Corp
Original Assignee
Hitachi Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Chemical Co Ltd filed Critical Hitachi Chemical Co Ltd
Publication of WO2018038212A1 publication Critical patent/WO2018038212A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements

Definitions

  • the present invention relates to a method for manufacturing an image display device.
  • An image display device used in an information terminal such as a smart phone has an image display unit (including a liquid crystal panel, a cover glass, etc.) having an image display surface and a frame unit that supports the image display unit.
  • the image display unit and the frame unit are manufactured by bonding and fixing with a pressure-sensitive adhesive tape.
  • a pressure-sensitive adhesive tape a black pressure-sensitive adhesive tape having a light shielding property is generally used in order to prevent deterioration of image quality due to light leakage from between the image display portion and the frame portion (for example, patents). Reference 1).
  • the present invention provides a method capable of efficiently forming a light-shielding layer having a light-shielding property that suppresses light leakage from between an image display part and a frame part even in a narrow region when manufacturing an image display device.
  • the purpose is to do.
  • One aspect of the present invention is a liquid crystal panel having an image display surface, an image display portion having a cover member having a light transmission portion facing the image display surface, and the image display portion provided around the image display portion.
  • a method of manufacturing an image display device comprising: a frame portion that supports a frame; and a light shielding layer formed between the frame portion and the image display portion. This method includes a step of applying a curable resin composition containing a colorant to the image display member or the frame portion to form a frame-shaped curable resin layer, and the curable resin layer.
  • the light shielding layer is the curable resin layer that has undergone a curing reaction.
  • the light shielding layer that suppresses light leakage between the image display portion and the frame portion can be efficiently formed even in a narrow region.
  • the curable resin layer when the image display portion and the frame portion are bonded to each other can have pressure-sensitive adhesiveness.
  • the image display unit and the frame unit may be bonded so that an aspect ratio represented by the following formula is 0.4 or more.
  • Aspect ratio B '/ A'
  • a ′ represents a width at a predetermined portion of the frame-shaped curable resin layer applied to one of the image display unit and the frame unit
  • B ′ represents the image display unit and the image display unit.
  • variety which is in contact with the other of the said image display part and the said frame part in the said predetermined part of the said curable resin layer after the said frame part is bonded together is shown.
  • the above method may further include a step of further proceeding a curing reaction of the curable resin layer after the step of bonding the image display unit and the frame unit.
  • a step of further proceeding a curing reaction of the curable resin layer after the step of bonding the image display unit and the frame unit.
  • the width of the light shielding layer in a direction perpendicular to the direction in which the light shielding layer extends may be 0.5 mm or less. Even in such a narrow region, according to the above method, it is possible to form the light shielding layer more efficiently than in the case where a pressure sensitive adhesive tape is used.
  • the curable resin composition may further contain a photo radical polymerization initiator and a monomer component containing a monofunctional monomer having one radical polymerizable group.
  • the monofunctional monomer may include a compound having a reactive group that crosslinks polymer chains generated by radical polymerization of the monomer component by ionic reaction.
  • the curable resin composition contains a compound having a reactive group that crosslinks polymer chains by ionic reaction
  • curing of the curable resin layer by ionic reaction is followed by curing reaction by generation of polymer chain by photoradical polymerization.
  • the reaction can easily proceed further.
  • the monofunctional monomer may include a compound having a silanol group and / or an alkoxysilyl group.
  • the monofunctional monomer may include a compound having a cyclic ether group.
  • the curable resin composition may further contain a photoacid generator.
  • the monofunctional monomer may include a compound having an isocyanate group.
  • the curable resin composition may further contain a photobase generator. The photobase generator may also serve as the photoradical polymerization initiator.
  • the curable resin composition may further contain a polymer.
  • the curable resin layer after being irradiated with active energy rays particularly easily has pressure-sensitive adhesive properties for bonding the image display portion and the frame portion together. be able to.
  • a light-shielding layer having a light-shielding property that suppresses light leakage from between an image display unit and a frame unit can be efficiently formed even in a narrow region. Can be formed.
  • the image display unit can be fixed with higher adhesive force. The high adhesive force can suppress the peeling and floating of the image display unit due to the impact force due to dropping or the repulsive force of the flexible wiring board (FPC).
  • (meth) acrylate means “acrylate” and “methacrylate” corresponding thereto.
  • (meth) acryl means “acryl” and “methacryl” corresponding thereto, and “(meth) acryloyl” means “acryloyl” and corresponding “methacryloyl”.
  • FIG. 1 is a cross-sectional view showing an embodiment of an image display device.
  • the image display device 100 shown in FIG. 1 supplies light to the liquid crystal panel 41 and the image display unit 1 including the liquid crystal panel 41 having the image display surface 41S, the cover member 20, and the light-transmitting pressure-sensitive adhesive layer 42.
  • the cover member 20 includes a cover glass 21 having a light transmission portion 25 facing the image display surface 41S, and a frame portion 22 provided on the peripheral portion of the main surface of the cover glass 21 on the image display surface 41S side.
  • the light transmissive pressure sensitive adhesive layer 42 is bonded between the liquid crystal panel 41 and the cover member 20 while being interposed.
  • the light-transmissive pressure-sensitive adhesive layer 42 is generally sometimes referred to as OCA (Optical clear adhesive).
  • the backlight unit 43 includes a light source 45 and an optical sheet unit 46 for supplying light from the light source 45 to the liquid crystal panel 41.
  • the frame unit 5 includes a resin frame 51 provided around the liquid crystal panel 41 and the backlight unit 43, a backlight frame 52 that houses the backlight unit 43 outside the resin frame 51, and a backlight frame 52. And a housing frame 53.
  • the resin frame 51 supports the image display unit 1 by adhering to the peripheral portion of the liquid crystal panel 41 and the frame portion 22 of the cover member 20 with the light shielding layer 3 interposed therebetween.
  • the backlight frame 52 supports the image display unit 1 by adhering to the frame unit 22 with the light shielding layer 3 interposed therebetween.
  • the housing frame 53 supports the image display unit 1 by adhering to the frame unit 22 with the light shielding layer 3 interposed.
  • the light shielding layer 3 can have such a light transmittance that light leakage from the backlight unit 43 is substantially invisible.
  • the average light transmittance at 400 to 700 nm of the light shielding layer 3 may be less than 10%.
  • This average light transmittance may be, for example, a value measured under the condition of irradiating light in the thickness direction of the light shielding layer 3.
  • the light-shielding layer 3 may form a closed frame-like body that completely surrounds the periphery of the backlight unit 43, and surrounds a part of the periphery of the backlight unit 43 as long as light leakage can be sufficiently suppressed.
  • An open frame-like body may be formed.
  • the light shielding layer 3 between at least one selected from the resin frame 51, the backlight frame 52, and the housing frame 53 and the image display unit 1 is coated with a curable resin composition and active energy rays. It can be formed by a method including irradiation.
  • a part of the light shielding layer of the image display device may be formed of a pressure sensitive adhesive tape.
  • the width W of each light shielding layer 3 in a direction perpendicular to the direction in which the light shielding layer 3 extends may be 0.5 mm or less.
  • the width W is narrow, an image display device having a narrower frame portion and excellent design can be obtained.
  • the lower limit of the width W is not particularly limited, but may be about 0.2 mm.
  • the members constituting the image display unit 1 and the frame unit 5 can be appropriately selected from those normally employed in the field of image display devices.
  • the optical sheet unit 46 of the backlight unit 43 generally includes a lens sheet, a diffusion sheet, a light guide plate, a reflection sheet, and the like.
  • the configuration of the image display device is not limited to the configuration shown in FIG.
  • the frame portion 22 may not be provided, and the peripheral portion of the cover glass 21 and the frame portion 5 may be bonded with the light shielding layer 3 interposed.
  • FIGS. 2 and 3 are perspective views showing an embodiment of a method for manufacturing an image display device.
  • the method shown in FIGS. 2 and 3 applies a curable resin composition to a predetermined portion (periphery of the main surface on the back side) of the image display unit 1 (for example, a cover member) to form a frame-like curable property.
  • the light shielding layer 3 is formed by the progress of the curing reaction in the curable resin layer 3A.
  • FIGS. 4 and 5 are also perspective views showing an embodiment of a method for manufacturing an image display device.
  • the frame-shaped curable resin layer 3A is formed by applying the curable resin composition to the frame portion 5.
  • the other points are the same as the method of FIGS.
  • a curable resin composition includes a monomer including a photo radical polymerization initiator (hereinafter also referred to as “component (A)”) and a monofunctional monomer having one radical polymerizable group.
  • component (A) a photo radical polymerization initiator
  • component (B) a monofunctional monomer having one radical polymerizable group.
  • component (C) a colorant
  • the photoradical polymerization initiator is a component that generates a free radical by irradiation with active energy rays and accelerates a curing reaction (polymerization reaction) by radical polymerization of the monomer component.
  • the active energy rays can be selected from ultraviolet rays, electron rays, ⁇ rays, ⁇ rays and the like.
  • photo radical polymerization initiator examples include benzophenone, N, N′-tetramethyl-4,4′-diaminobenzophenone (Michler ketone), N, N-tetraethyl-4,4′-diaminobenzophenone, 4-methoxy- 4,4′-dimethylaminobenzophenone, ⁇ -hydroxyisobutylphenone, 2-ethylanthraquinone, tert-butylanthraquinone, 1,4-dimethylanthraquinone, 1-chloroanthraquinone, 2,3-dichloroanthraquinone, 3-chloro-2- Methyl anthraquinone, 1,2-benzoanthraquinone, 2-phenylanthraquinone, 1,4-naphthoquinone, 9,10-phenanthraquinone, thioxanthone, 2-chlorothioxanthone
  • a radical photopolymerization initiator may be used individually by 1 type, and may be used in combination of 2 or more type. From the viewpoint of curability, reactivity, and surface curability, a radical photopolymerization initiator may be selected from aromatic ketone compounds, ⁇ -hydroxyalkylphenone compounds, and phenylglyoxylic acid methyl esters.
  • the photo radical polymerization initiator may be a compound that generates both a free radical and a base (for example, a secondary amino group or a tertiary amino group) by irradiation with active energy rays.
  • the radical photopolymerization initiator may also serve as the photobase generator.
  • photo radical polymerization initiator that generates a base
  • 4-morpholinobenzoyl) -1-benzyl-1-dimethylaminopropane (“Irgacure 369”, manufactured by BASF Japan Ltd.), 4- (methylthiobenzoyl)- 1-methyl-1-morpholinoethane (“Irgacure 907”, manufactured by BASF Japan Ltd.), 2- (dimethylamino) -2-[(4-methylphenyl) methyl] -1- [4- (4-morpholinyl) phenyl ] ⁇ -Aminoacetophenone compounds such as -1-butanone (“Irgacure 379”, manufactured by BASF Japan Ltd.); -1919 "," NCI-831 "(above, manufactured by Adeka), etc. Compounds. Among these, an ⁇ -aminoacetophenone compound may be selected.
  • the content of the radical photopolymerization initiator in the curable resin composition is the total amount of the curable resin composition from the viewpoint of pressure-sensitive adhesiveness, reliability, and curability, and from the viewpoint of efficiently promoting the curing reaction.
  • 2 mass% or more, 4 mass% or more, or 6 mass% or more may be sufficient, and 14 mass% or less, 12 mass% or less, or 10 mass% or less may be sufficient.
  • the monomer component (B) contains one or more monofunctional monomers having one radical polymerizable group.
  • the radical polymerizable group possessed by the monomer component include a (meth) acryloyl group, a vinyl group, an ethynyl group, an isopropenyl group, a vinyl ether group, and a vinyl thioether group.
  • the monomer component may be a compound having a (meth) acryloyl group.
  • the monofunctional monomer having a (meth) acryloyl group may be an alkyl (meth) acrylate, and the carbon number of the alkyl group in that case is 4 from the viewpoint of imparting flexibility to the curable resin composition. As described above, it may be 6 or more, or 8 or more, and may be 20 or less, 18 or less, or 16 or less.
  • the alkyl group of the alkyl (meth) acrylate may have a substituent such as a hydroxyl group.
  • the monofunctional monomer having a (meth) acryloyl group include n-butyl (meth) acrylate, tert-butyl (meth) acrylate, isobutyl (meth) acrylate, n-pentyl (meth) acrylate, n- Octyl (meth) acrylate, isooctyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, isodecyl (meth) acrylate, n-hexyl (meth) acrylate, stearyl (meth) acrylate, lauryl (meth) acrylate, tridecyl (meth) Alkyl (meth) acrylates such as acrylate; 2-hydroxyethyl (meth) acrylate, 1-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 3-hydroxypropyl (meth) acrylate
  • (Meth) acrylates such as dimethyl (meth) acrylamide, isopropyl (meth) acrylamide, dimethylaminopropyl (meth) acrylamide; hydroxyl-containing (meth) acrylamides such as hydroxyethyl (meth) acrylamide; diethylene glycol, triethylene Polyethylene glycol mono (meth) acrylate such as glycol; dipropylene glycol mono (meth) acrylate, tripropylene glycol mono (meth) acrylate Polypropylene glycol mono (meth) acrylates such as dibutylene glycol mono (meth) acrylate and tributylene glycol mono (meth) acrylate; morpholine group-containing (meth) acrylates such as acryloylmorpholine; Examples include cyclopentanyl (meth) acrylate, dicyclopentenyloxyethyl (meth) acrylate, dicyclopentenyloxyethyl (meth) acryl
  • monofunctional monomers are dicyclopentanyl (meth) acrylate and dicyclopentenyl (meth) acrylate. And a compound selected from isobornyl (meth) acrylate, or a compound selected from dicyclopentenyl (meth) acrylate and isobornyl (meth) acrylate.
  • the content of the monofunctional monomer is curable resin from the viewpoint of obtaining a curable resin composition having an appropriate viscosity, from the viewpoint of adjusting the curing shrinkage and the elastic modulus of the cured product, and from the viewpoint of solubility of the colorant. 10 mass% or more, 15 mass% or more, or 20 mass% or more may be sufficient with respect to the total amount of a composition, and 80 mass% or less, 70 mass% or less, or 60 mass% or less may be sufficient.
  • the content of the monofunctional monomer is 10% by mass or more, it is easy to obtain a curable resin composition having an appropriate viscosity that contributes to good coating properties, and the solubility of the colorant tends to be improved. is there.
  • the content of the monofunctional monomer is 80% by mass or less, the curing shrinkage rate tends to be low. When the curing shrinkage rate is low, it is possible to suppress a decrease in adhesive force due to stress.
  • the monomer component may contain, as a monofunctional monomer, a compound having a reactive group that crosslinks polymer chains generated by radical polymerization of a monofunctional monomer by an ionic reaction.
  • a compound having a reactive group that crosslinks polymer chains generated by radical polymerization of a monofunctional monomer by an ionic reaction examples include a compound having a silanol group and / or an alkoxysilyl group, a compound having a cyclic ether group, and a compound having an isocyanate group.
  • Silanol groups and alkoxysilyl groups can advance the curing reaction by ionic reaction involving water (hydrolysis reaction). This reaction can be facilitated, for example, by a base generated from a photobase generator.
  • Specific examples of the compound having a silanol group and / or alkoxysilyl group that can be contained in the monofunctional monomer include 3-acryloxypropyltrimethoxysilane (trade name: KBM5103, Shin-Etsu Chemical Co., Ltd.), 3-methacrylic acid.
  • Compounds having (meth) acryloyl group and trialkoxysilyl group such as loxypropyltrimethoxysilane (trade name: KBM503, Shin-Etsu Chemical Co., Ltd.), methacryloxyoctyltrimethoxysilane (trade name: KBM5803, Shin-Etsu Chemical Co., Ltd.) Is mentioned.
  • the compound having a silanol group and / or an alkoxysilyl group may be a compound having a (meth) acryloyl group and a dialkoxysilyl group, such as methacryloxypropylmethyldiethoxysilane.
  • a compound having a cyclic ether group can advance a curing reaction by a cationic polymerization reaction of the cyclic ether group. This reaction can be facilitated, for example, by an acid generated from a photoacid generator.
  • the compound having a cyclic ether group that can be contained in the monofunctional monomer include compounds having an epoxy group and / or an oxetane group. Specific examples of these compounds include glycidyl (meth) acrylate, 3,4-epoxycyclohexylmethyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate glycidyl ether, propylene oxide (PO) modified bisphenol A diglycidyl ether diester.
  • the compound having a cyclic ether group may be allyl glycidyl ether.
  • the compound having an isocyanate group can advance a curing reaction by a reaction of an isocyanate group involving moisture.
  • Specific examples of the compound having an isocyanate group that can be contained in the monofunctional monomer include isocyanatomethyl (meth) acrylate and 2-isocyanatoethyl (meth) acrylate.
  • the content of the compound having a reactive group is the total amount of the curable resin composition from the viewpoint of reactivity, the viewpoint of improving the adhesive force, and the stability when the curable resin composition is a solution.
  • 0.1 mass% or more, 1 mass% or more, or 3 mass% or more may be sufficient, and 15 mass% or less, 10 mass% or less, or 5 mass% or less may be sufficient.
  • the monomer component (B) contains a monofunctional monomer having one radical polymerizable group as a main component, but in addition to this, a polyfunctional monomer having two or more radical polymerizable groups. It may contain a mer. In that case, content of a polyfunctional monomer may be 5 mass% or less with respect to the total amount of a monomer component ((B) component).
  • Colorant is a component that colors the curable resin composition and the light-shielding layer and imparts appropriate light-shielding properties to the formed light-shielding layer, and there is no particular limitation on the hue of the colorant. Although colorants with various hues can be used, the colorants typically exhibit a black color.
  • the colorant can include, for example, a dye and / or a pigment. From the viewpoint of obtaining a uniform curable resin composition, a colorant that dissolves in the monomer component may be selected.
  • the colorant is dissolved in the monomer component.
  • the average visible light transmittance of the colorant may be 50% or less, 45% or less, or 40% or less.
  • the average transmittance of visible light refers to the average transmittance of light having a wavelength of 400 to 700 nm.
  • the average visible light transmittance is obtained by measuring the light transmittance of a colorant solution composed of 100 parts by mass of a solvent in which the colorant is dissolved and 0.1 part by mass of the colorant with a spectrocolorimeter (for example, manufactured by Konica Minolta, Inc.). “CM-3700A”) can be measured every 1 nm in the range of 400 to 700 nm, an average value of the obtained measurement values can be obtained, and the average transmittance can be obtained.
  • the dissolution of the colorant in the solvent can be confirmed by the same method as that described above for “the colorant dissolves in the monomer component”.
  • the light transmittance (hereinafter also referred to as “irradiation transmittance”) of the colorant at the peak wavelength of the light (active energy ray) irradiated to advance the curing reaction is 10% of the average visible light transmittance. As mentioned above, it may be 20% or more, 30% or more higher.
  • the irradiation light transmittance may be 60% or more, 65% or more, or 70% or more.
  • the irradiation light transmittance of the colorant is determined by the light (active energy ray) irradiated to advance the curing reaction of the colorant solution consisting of 100 parts by mass of the solvent in which the colorant is dissolved and 0.1 part by mass of the colorant.
  • the light transmittance of the colorant at the peak wavelength of) can be determined by a method of measuring the decomposition wavelength under the condition of 1 nm.
  • a visible ultraviolet spectrophotometer for example, “UV-2400PC” manufactured by Shimadzu Corporation
  • the measurement range is set to 300 to 780 nm, for example.
  • the colorant may include, for example, at least one selected from the group consisting of phthalocyanine blue, phthalocyanine green, iodine green, diazo yellow, aniline black, perylene black, and fluoran.
  • the content of the colorant is 0.1% by mass or more, 0.3% by mass or more, or 0.5% by mass or more with respect to the total amount of the curable resin composition from the viewpoint of obtaining an effect of shielding visible light. It may be 10 mass% or less, 7.5 mass% or less, or 5 mass% or less.
  • the curable resin composition may further contain other components as necessary in addition to the components (A), (B) and (C) described above.
  • the curable resin composition contains, for example, a compound having no radical polymerizable group selected from a compound having a silanol group and / or an alkoxysilyl group, a compound having a cyclic ether group, and a compound having an isocyanate group. May be. These compounds can also advance the curing reaction by ionic reaction.
  • Examples of the compound having a silanol group and / or alkoxysilyl group that can be included in the curable resin composition include, for example: A compound having a carboxylic anhydride group and a trimethoxysilyl group (for example, “X-12-967C” manufactured by Shin-Etsu Chemical Co., Ltd.), a compound having an isocyanurate group and a trimethoxysilyl group (for example, “KBM9659”) , Manufactured by Shin-Etsu Chemical Co., Ltd.), a compound having an epoxy group and a trimethoxysilyl group (for example, “KBM403”, manufactured by Shin-Etsu Chemical Co., Ltd.), a compound having a mercapto group and a trimethoxysilyl group (for example, “ KBM803 ", manufactured by Shin-Ets
  • tetraalkoxysilane or their oligomers such tetrabutoxy silane.
  • a compound having a silanol group and / or an alkoxysilyl group may be used alone or in combination of two or more.
  • a compound having a trialkoxysilyl group, tetraalkoxysilane, or an oligomer thereof may be selected.
  • a compound having a dialkoxysilyl group may be combined.
  • the compound (X) include a compound having a trialkoxysilyl group, a compound having a dialkoxysilyl group, and a partial hydrolyzate of at least one compound selected from tetraalkoxysilane and oligomers thereof (for example, A partial hydrolyzate of tetramethoxysilane oligomer, a partial hydrolyzate of tetraethoxysilane and dimethyldimethoxysilane); a compound having trialkoxysilyl group, a compound having dialkoxysilyl group, and tetraalkoxysilane and oligomer thereof A reaction product of at least one selected from tetraalkoxytitanium and / or tetraalkoxyzirconium (for example, a reaction product of tetramethoxysilane oligomer and tetrabutoxytitanium, tetraethoxysilane and tetrabutoxytitanium
  • a compound having a trialkoxysilyl group, a compound having a dialkoxysilyl group, and a partial hydrolyzate of at least one compound selected from tetraalkoxysilane and oligomers thereof are selected. But you can.
  • Still another example of the compound (X) includes, for example, an oligomer having a silanol group and / or an alkoxysilyl group.
  • the content of the compound (X) From the viewpoint of stability, from the viewpoint of improving the adhesive strength, and from the viewpoint of stability when the curable resin composition is a solution, 0.1% by mass or more and 1% by mass with respect to the total amount of the curable resin composition It may be 3% by mass or more, 15% by mass or less, 10% by mass or less, or 5% by mass or less.
  • the content of the compound (X) From the viewpoint of stability, from the viewpoint of improving the adhesive force, and from the viewpoint of stability when the curable resin composition is a solution, 1% by mass or more, 5% by mass or more with respect to the total amount of the curable resin composition, Or 10 mass% or more may be sufficient, and 70 mass% or less, 50 mass% or less, or 30 mass% or less may be sufficient.
  • Examples of the compound having a cyclic ether group that can be contained in the curable resin composition include, for example, an epoxy group, and / or Or the compound which has an oxetane group is mentioned.
  • glycidyl ether examples include glycidyl ether, butyl glycidyl ether, 2-ethylhexyl glycidyl ether, stearyl glycidyl ether, lauryl glycidyl ether, butoxy polyethylene glycol glycidyl ether, phenol polyethylene glycol glycidyl ether, phenyl glycidyl ether, p-methylphenyl Monofunctional epoxy compounds such as glycidyl ether, p-ethylphenyl glycidyl ether, p-sec-butylphenyl glycidyl ether, p-tert-butylphenyl glycidyl ether; bisphenol A diglycidyl ether, bisphenol F diglycidyl ether, bisphenol S diglycidyl ether , Hydrogenated bisphenol A diglycidyl ether, hydrogenated bisphenol F Polyg
  • compound (Y) examples include an oligomer having a cyclic ether group.
  • the content of the compound (Y) From the viewpoint of improving the force, and from the viewpoint of stability when the curable resin composition is a solution, it is 0.1% by mass or more, 1% by mass or more, and 3% by mass with respect to the total amount of the curable resin composition.
  • the above may be sufficient, and 15 mass% or less, 10 mass% or less, and 5 mass% or less may be sufficient.
  • the content of the compound (Y) is determined in terms of reactivity, adhesion. From the viewpoint of improving the force, and from the viewpoint of stability when the curable resin composition is a solution, it is 1% by mass or more, 5% by mass or more, or 10% by mass or more with respect to the total amount of the curable resin composition. 70 mass% or less, 50 mass% or less, or 30 mass% or less may be sufficient.
  • Compounds having an isocyanate group that can be included in the curable resin composition include monofunctional isocyanates and polyfunctional isocyanates. Can be mentioned.
  • the monofunctional isocyanate examples include methyl isocyanate, ethyl isocyanate, propyl isocyanate, butyl isocyanate, octyl isocyanate, decyl isocyanate, octadecyl isocyanate, stearyl isocyanate, cyclohexyl isocyanate, phenyl isocyanate, benzyl isocyanate, p-chlorophenyl isocyanate, p-nitro.
  • polyfunctional isocyanate examples include 1,3-phenylene diisocyanate, 4,4′-diphenyl diisocyanate, 1,4-phenylene diisocyanate, 4,4′-diphenylmethane diisocyanate (also known as 4,4′-MDI), 2 , 4-Tolylene diisocyanate (also known as 2,4-TDI), 2,6-tolylene diisocyanate, 4,4'-toluidine diisocyanate, 2,4,6-triisocyanate toluene, 1,3,5-triisocyanate Aromatic polyisocyanates such as benzene, dianisidine diisocyanate, 4,4'-diphenyl ether diisocyanate, 4,4 ', 4 "-triphenylmethane triisocyanate; trimethylene diisocyanate, tetramethylene diisocyanate, hexamethylene dii Aliphatic acids such as cyanate (also known as HDI), pentam
  • the compound (Z) include, for example, an oligomer having an isocyanate group (for example, a urethane resin having an isocyanate group at both ends).
  • the content of the compound (Z) is determined in terms of reactivity and adhesive strength. From the viewpoint of improving the stability and the stability when the curable resin composition is a solution, 0.1% by mass or more, 1% by mass or more, 3% by mass or more with respect to the total amount of the curable resin composition It may be 15 mass% or less, 10 mass% or less, and 5 mass% or less.
  • the content of the compound (Z) is determined in terms of reactivity, adhesive strength. 1% by mass or more, 5% by mass or more, or 10% by mass or more with respect to the total amount of the curable resin composition from the viewpoint of improving the stability and the stability when the curable resin composition is a solution. It may be 70 mass% or less, 50 mass% or less, or 30 mass% or less.
  • the curable resin composition according to this embodiment may further contain a photobase generator as the component (D).
  • a photobase generator refers to the generation of one or more basic substances that can function as a curing catalyst for ionic reaction by changing the molecular structure or cleaving the molecule upon irradiation with active energy rays. Means a compound.
  • the photobase generator the aforementioned radical photopolymerization initiator that generates a base may be used.
  • Photobase generators include Co-amine complex photobase generators; carbamate ester photobase generators; quaternary ammonium salt photobase generators; acyloxyimino groups, N-formylated aromatic amino groups, N- It can also be selected from compounds having an acylated aromatic amino group, a nitrobenzyl carbamate group, an alkoxybenzyl carbamate group, and the like.
  • the photobase generator include 9-antilmethyl N, N-diethylcarbamate, (E) -1- [3- (2-hydroxyphenyl) -2-propenoyl] piperidine, guanidinium 2- (3-benzoyl) Phenyl) propionate, 1- (anthraquinone-2-yl) ethyl imidazole carboxylate, 2-nitrophenylmethyl 4-methacryloyloxypiperidine-1-carboxylate, 1- (anthraquinone-2-yl) -ethyl N, N-dicyclohexyl Carbamate, dicyclohexylammonium 2- (3-benzoylphenyl) propionate, cyclohexylammonium 2- (3-benzoylphenyl) propionate, 9-anthrylmethyl N, N-dicyclohexylcarbamate, 1, -Diisopropyl-3- [bis (dimethylamino)
  • the content of the photobase generator in the curable resin composition is 2% by mass or more, 4% by mass or more with respect to the total amount of the curable resin composition, from the viewpoint of efficiently accelerating the curing reaction by ionic reaction. Or 6 mass% or more may be sufficient, and 14 mass% or less, 12 mass% or less, or 10 mass% or less may be sufficient.
  • the photobase generator also serves as a radical photopolymerization initiator, the content thereof is regarded as a content as a radical photopolymerization initiator.
  • the curable resin composition according to the present embodiment may further contain a photoacid generator as the component (E).
  • the “photoacid generator” means a compound that generates one or more acidic substances that can function as a curing catalyst for ionic reaction by changing the molecular structure or cleaving the molecule upon irradiation with active energy rays. Means.
  • the photoacid generator can particularly function as a curing catalyst for an ionic reaction of a compound having a cyclic ether group.
  • photoacid generator examples include onium salt compounds, sulfone compounds, sulfonic acid ester compounds, sulfonimide compounds, disulfonyldiazomethane compounds, disulfonylmethane compounds, oxime sulfonate compounds, hydrazine sulfonate compounds, triazine compounds, nitrobenzyl compounds, Organic halides and disulfone can be mentioned.
  • photoacid generators examples include trade names “Syracure UVI-6970”, “Syracure UVI-6974”, “Syracure UVI-6990”, “Syracure UVI-950” (above, Union Carbide, USA) "Irgacure 250”, “Irgacure 261”, “Irgacure 264”, “Irgacure 270”, “Irgacure 290” (manufactured by BASF), "CG-24-61” (Ciba Geigy), “Adekaoptomer” “SP-150”, “Adekaoptomer SP-151”, “Adekaoptomer SP-170”, “Adekaoptomer SP-171” (manufactured by ADEKA Corporation), “DAICAT II” (Daicel Corporation) ), “UVAC1590”, “UVAC1591” (above, Daicel-Cite) (CI Co., Ltd.), “CI-2064”, “CI-2539
  • the curable resin composition according to this embodiment may further contain a polymer as the component (F).
  • the polymer contained in the curable resin composition may be an oligomer.
  • the “oligomer” means a polymer having a weight average molecular weight of 1 ⁇ 10 4 or more.
  • a weight average molecular weight means the value of standard polystyrene conversion measured by gel permeation chromatography.
  • the “polymer” as the component (F) includes the above-described components (A) to (C), a compound having a silanol group and / or an alkoxysilyl group, a compound having a cyclic ether group, and an isocyanate group. It is a component except the compound which does not have the radically polymerizable group chosen from the compound which has this.
  • polymer examples include butadiene rubber, isoprene rubber, silicon rubber, styrene butadiene rubber, chloroprene rubber, nitrile rubber, butyl rubber, ethylene propylene rubber, urethane rubber, acrylic rubber, chlorosulfonated polyethylene rubber, fluorine rubber, Liquid or solid materials of various rubbers such as hydrogenated nitrile rubber and epichlorohydrin rubber; poly ⁇ -olefins such as polybutene; hydrogenated ⁇ -olefin oligomers such as hydrogenated polybutene; polyvinyl oligomers such as atactic polypropylene; biphenyl and tri Aromatic oligomers such as phenyl; Hydrogenated polyene oligomers such as hydrogenated liquid polybutadiene; Paraffinic oligomers such as paraffin oil and chlorinated paraffin oil; Cycloparaffinic oligomers such as naphthene oil; A polyester-based
  • the (meth) acrylic acid polymer is a polymer containing one or more monomer units derived from a monomer having one (meth) acryloyl group.
  • the (meth) acrylic acid-based polymer is a compound having two or more (meth) acryloyl groups, a polymerizable compound not having a (meth) acryloyl group (for example, acrylonitrile, As a comonomer, a compound having one polymerizable unsaturated bond such as styrene, vinyl acetate, ethylene or propylene, or a compound having two or more polymerizable unsaturated bonds such as divinylbenzene in the molecule) May be included.
  • the monomer constituting the (meth) acrylic acid polymer include (meth) acrylic acid; (meth) acrylic acid amide; methyl (meth) acrylate, ethyl (meth) acrylate, n-butyl (meth) Alkyl (meth) acrylates such as acrylate, isobutyl (meth) acrylate, tert-butyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, isodecyl (meth) acrylate, n-lauryl (meth) acrylate, stearyl (meth) acrylate, etc.
  • (Meth) acrylates having aromatic rings such as benzyl (meth) acrylate and phenoxyethyl (meth) acrylate; butoxyethylene glycol (meth) acrylate, butoxydiethylene glycol (meth) acrylate, methoxytriethylene glycol (Meth) acrylates having an alkoxy group such as acryl (meth) acrylate; cycloaliphatic such as cyclohexyl (meth) acrylate, tetrahydrofurfuryl (meth) acrylate, isobornyl (meth) acrylate, dicyclopentanyl (meth) acrylate (Meth) acrylate having a group; (meth) acrylate having a hydroxyl group such as 2-hydroxyethyl (meth) acrylate, 3-hydroxypropyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate; tetraethylene glycol monomethyl ether ( (Meth) acrylate)
  • the (meth) acrylic acid polymer may be a homopolymer or copolymer containing these monomers as monomer units.
  • the (meth) acrylic acid polymer is a homopolymer or copolymer containing a monofunctional monomer having one (meth) acryloyl group contained in the monomer component (B) as a monomer unit. May be.
  • the (meth) acrylic acid polymer may contain a (meth) acrylate having an alkyl group as a monomer unit, or a (meth) acrylate having an alkyl group having 4 to 18 carbon atoms as a monomer unit. May be included.
  • the proportion of the (meth) acrylate having an alkyl group contained as a monomer unit per molecule of the (meth) acrylic acid polymer is 5% by mass or more based on the mass of the (meth) acrylic acid polymer. 10 mass% or more may be sufficient, and 95 mass% or less and 90 mass% or less may be sufficient.
  • the proportion of the alkyl group-containing (meth) acrylate is within the above range, the adhesion of the cured curable resin layer (light-shielding layer) to an adherend such as glass, plastic, polarizing plate or polycarbonate is improved. Tend.
  • the (meth) acrylic acid polymer has a polar group such as a hydroxyl group, a morpholino group, an amino group, a carboxyl group, a cyano group, a carbonyl group, or a nitro group from the viewpoint of improving the pressure-sensitive adhesiveness with a base material such as plastic. It may be a copolymer containing the (meth) acrylate as a monomer unit.
  • the weight average molecular weight of the (meth) acrylic acid polymer (oligomer) may be 1 ⁇ 10 4 to 1 ⁇ 10 7 .
  • the weight average molecular weight is within the above range, it is particularly easy to obtain a pressure-sensitive adhesive force that does not cause peeling on a substrate or the like under a high temperature (for example, 80 ° C. or higher) and high humidity (for example, 90% or higher) environment. be able to.
  • a curable resin composition having a viscosity suitable for coating and good workability.
  • (Meth) acrylic acid polymer can be prepared using a known polymerization method such as solution polymerization, emulsion polymerization, suspension polymerization, bulk polymerization and the like.
  • a compound that generates a radical by heat may be used as a polymerization initiator in these polymerization methods.
  • a compound that generates a radical by heat include benzoyl peroxide, tert-butyl perbenzoate, cumene hydroperoxide, diisopropyl peroxydicarbonate, di-n-propyl peroxydicarbonate, di (2-ethoxyethyl) peroxydicarbonate, Organic peroxides such as tert-butylperoxyneodecanoate, t-butylperoxypivalate, (3,5,5-trimethylhexanoyl) peroxide, dipropionyl peroxide, diacetyl peroxide, didodecyl peroxide 2,2′-azobisisobutyronitrile, 2,2′-azobis (2-methylbutyronitrile), 1,1′-azobis (cyclohexane-1-carbonitrile), 2.2′-azobis ( 2,4
  • the content of the polymer may be 1% by mass or more, 5% by mass or more, 10% by mass or more, 90% by mass or less, 80% by mass or less, 70% by mass with respect to the total amount of the curable resin composition. It may be the following.
  • a curable resin composition having a viscosity suitable for coating and good workability is easily obtained.
  • the pressure-sensitive adhesiveness to the adherend such as glass, plastic, polarizing plate and polycarbonate of the cured resin layer after light irradiation tends to be particularly good.
  • the curable resin composition may contain a gelling agent such as 1,2-hydroxystearic acid or a thixotropic agent instead of or together with the polymer.
  • a gelling agent such as 1,2-hydroxystearic acid or a thixotropic agent instead of or together with the polymer.
  • the curable resin composition may further contain other additives as necessary.
  • other additives include adhesion improving agents such as silane coupling agents, thermal polymerization initiators, antioxidants, chain transfer agents, stabilizers, and photosensitizers.
  • the curable resin composition may not substantially contain an organic solvent from the viewpoint of moisture and heat resistance reliability and from the viewpoint of suppressing the generation of bubbles in the cured product.
  • the “organic solvent” means an organic compound that does not have a radical polymerizable group, is liquid at 25 ° C., and has a boiling point of 250 ° C. or less at atmospheric pressure.
  • substantially free of an organic solvent means that it does not contain an intentionally added organic solvent, and an embodiment in which a trace amount of an organic solvent is present in the curable resin composition. Do not exclude.
  • the content of the organic solvent in the curable resin composition is 1.0 ⁇ 10 3 ppm or less, 5.0 ⁇ 10 2 ppm or less, or 1 with respect to the total amount of the curable resin composition. It may be 0.0 ⁇ 10 2 ppm or less.
  • the curable resin composition may not contain any organic solvent.
  • the viscosity of the curable resin composition at a temperature in at least a part of the range of 25 ° C. to 70 ° C. is 10 mPa ⁇ s or more, 4.0 ⁇ 10 2 mPa ⁇ s or more, 5.0 ⁇ It may be 10 2 mPa ⁇ s or more, 1.0 ⁇ 10 3 mPa ⁇ s or more, 2.0 ⁇ 10 3 mPa ⁇ s or more, or 3.0 ⁇ 10 3 mPa ⁇ s or more, 5.0 ⁇ 10 4 mPa ⁇ s or less, 2.0 ⁇ 10 4 mPa ⁇ s or less, 1.5 ⁇ 10 4 mPa ⁇ s or less, 1.25 ⁇ 10 4 mPa ⁇ s or less, or 1.0 ⁇ 10 4 mPa ⁇ s It may be the following.
  • the viscosity at 25 ° C. is a value measured based on JIS Z 8803, and specifically, a value measured using a B-type viscometer (for example, BL2 manufactured by Toki Sangyo Co., Ltd.). Calibration of the B-type viscometer can be performed based on JIS Z 8809-JS14000.
  • the viscosity at a temperature exceeding 25 ° C. can be measured according to the method for measuring the viscosity at 25 ° C.
  • the curable resin composition can exhibit pressure-sensitive adhesiveness when irradiated with active energy rays.
  • the pressure-sensitive adhesive force of the curable resin composition after irradiation with active energy rays may be 10 N / cm 2 or more, 20 N / cm 2 or more, or 40 N / cm 2 or more, and 400 N / cm. It may be 2 or less.
  • the measurement of pressure-sensitive adhesive force here is performed by the following method and conditions.
  • a curable resin composition is applied onto a first glass substrate having a width of 25 mm, a length of 75 mm, and a thickness of 1 mm, and a curable resin layer having a width of 0.6 mm, a length of 25 mm, and a film thickness of 50 ⁇ m is applied to the curable resin layer.
  • the second glass substrate having a width of 25 mm, a length of 75 mm, and a thickness of 1 mm on the curable resin layer within 1 minute from the light irradiation, the long side of the first glass substrate and the second glass substrate It arrange
  • the test force when the first glass substrate and the second glass substrate of the measurement sample are peeled in the opposite long side directions is measured, and this test force is set to be curable.
  • the value divided by the contact area between the resin layer and the second glass substrate is defined as the pressure-sensitive adhesive force.
  • 101 shows a 1st glass base material
  • 102 shows a 2nd glass base material
  • 3A shows a curable resin layer
  • D shows the direction to peel off.
  • the curable resin composition preferably has a resin characteristic such that the aspect ratio after bonding of the curable resin layer to be formed is high.
  • the aspect ratio after bonding of the curable resin layer may be 0.4 or more, 0.6 or more, or 0.8 or more.
  • the upper limit of the aspect ratio is usually 1.0.
  • the aspect ratio value is measured by the following method and conditions.
  • a curable resin composition is applied onto a first glass substrate having a width of 25 mm, a length of 75 mm, and a thickness of 1 mm, and a curable resin layer having a width of 0.6 mm, a length of 25 mm, and a film thickness of 50 ⁇ m is applied to the curable resin layer.
  • the second glass substrate having a width of 25 mm, a length of 75 mm, and a thickness of 1 mm on the curable resin layer within 1 minute from the light irradiation, the long side of the first glass substrate and the second glass substrate It arrange
  • B (unit: mm)
  • B / 0.6 is the aspect ratio.
  • 104 indicates a first glass substrate
  • 106 indicates a second glass substrate
  • 105 indicates a curable resin layer
  • A indicates a curable resin in contact with the first glass substrate.
  • the width of the layer (here 0.6 mm) is indicated.
  • a curable resin composition is applied to the peripheral edge of the main surface of the image display unit 1 to form a frame-shaped curable resin layer 3A.
  • a curable resin layer can be efficiently formed in a narrow region.
  • the curable resin composition can be applied efficiently and with high accuracy by a method of discharging a liquid curable resin composition from the opening.
  • the curable resin layer 3A contains a photobase generator or a photoacid generator, these usually generate a base or an acid by the action of active energy rays, but the ionic reaction catalyzed by the base or acid is a radical. It proceeds at a relatively slower reaction rate than the polymerization reaction. Therefore, it can be said that the curable resin layer 3A is semi-cured by radical polymerization reaction at the stage of irradiation with active energy rays.
  • the storage elastic modulus at 25 ° C. of the curable resin layer at the time of bonding is 10,000 to 500,000 Pa, 30000. It may be ⁇ 250,000 Pa, or 50,000 to 200,000 Pa.
  • a ′ indicates the width of a predetermined part of the frame-shaped curable resin layer 3A applied to the image display unit 1, and B ′ is after the image display unit 1 and the frame unit 5 are bonded together.
  • part of 3 A of curable resin layers is shown.
  • a ′ and B ′ indicate widths at the same positions as A and B shown in FIG.
  • the widths of A ′ and B ′ are, for example, that the predetermined part is a direction in which the curable resin layer 3A extends from the curable resin layer 3A before and after the image display unit 1 and the frame unit 5 are bonded to each other.
  • the line width where the curable resin layer 3A before bonding and the image display unit 1 are in contact is A ′
  • the curable resin layer 3A after bonding and
  • the line width in contact with the frame portion 5 is B ′.
  • the line width where the curable resin layer 3A before bonding and the frame part 5 are in contact with each other on the cut surface is A ′, and curing after bonding.
  • the line width where the conductive resin layer 3A and the image display unit 1 are in contact is B ′.
  • the curing reaction of the curable resin layer 3 ⁇ / b> A may be further cured in the state of a laminated body having the image display unit 1 and the frame unit 5 and bonded together.
  • the curing reaction that proceeds after the bonding may be referred to as “delayed curing”.
  • the delayed curing is allowed to proceed for 12 hours or more in an environment where the temperature is 10 ° C or higher, 15 ° C or higher, or 20 ° C or higher, and the humidity is 30% or higher, 40% or higher, or 50% or higher. Can do.
  • the environment for allowing delayed curing to proceed may be a temperature of 80 ° C. or lower and a humidity of 95% or lower. While the delayed curing is proceeding, other necessary steps such as a step of further processing the image display device and / or a step of inspecting the image display device may be performed.
  • the delayed curing may be radical polymerization, but more typically is a curing reaction by an ionic reaction having a reaction rate slower than that of radical polymerization.
  • delayed curing proceeds by an ionic reaction of the reactive group of the compound. This ionic reaction can be promoted by a base generated from the photobase generator or an acid generated from the photoacid generator.
  • the curable resin layer 3A (that is, the light shielding layer 3) after delayed curing can bond the cover member and the image display unit with higher adhesive force.
  • Photoradical polymerization initiator / photobase generator Photoradical polymerization initiator: ⁇ IRG-651 (manufactured by BASF Japan, IRGACURE-651,2,2-dimethoxy-1,2-diphenylethane-1-one) Photoradical polymerization initiator / photobase generator: IRG-907 (manufactured by BASF Japan, IRGACURE-907, 2-methyl-1- (4-methylthiophenyl) -2-morpholinopropan-1-one) (B) Monomer component (monofunctional monomer) (B1) Monofunctional monomer silanol group having a reactive group and / or compound having an alkoxysilyl group: ⁇ KBM-5103 (Shin-Etsu Chemical Co., Ltd., KBM-5103, 3-acryloxypropyltrimethoxysilane) Compound having cyclic ether group: ⁇ 4HBAGE (Nippon Kasei Co., Ltd., 4HBAGE, 4-hydroxy
  • oligomer (a copolymer of 2-ethylhexyl acrylate and 2-hydroxyethyl acrylate) was synthesized by the following procedure. Charge 2-ethylhexyl acrylate (90.0 g), 2-hydroxyethyl acrylate (10.0 g), methyl ethyl ketone (30.0 g), and ethyl acetate (170.0 g) into a container and purge with nitrogen at a flow rate of 100 mL / min. While heating, from normal temperature (25 ° C.) to 65 ° C. After reaching 65 ° C., azobisisobutyronitrile (0.3 g) was added, and kept at this temperature for 8 hours.
  • isostearyl acrylate (100.0 g) was added, and the solvent methyl ethyl ketone and ethyl acetate were distilled off, whereby a copolymer of 2-ethylhexyl acrylate and 2-hydroxyethyl acrylate (weight average molecular weight 600,000) was obtained.
  • An isostearyl acrylate solution (heating residue 50%) was obtained.
  • Adhesive strength (initial, after delayed curing) 8 and 9 are schematic views showing a method for measuring the adhesive force. As shown in FIG. 8, two curable resins facing each other on the glass base 60 by applying a curable resin composition to both ends of the center of a strip-shaped glass base 60 of 25 cm ⁇ 75 cm ⁇ 0.1 cm. Layer 3A (height 0.05 mm, width 0.4 to 0.6 mm, length 30 to 40 mm) was formed.
  • Irradiation to the formed curable resin layer 3A using an ultraviolet irradiation device made by Eye Graphics Co., Ltd., US5-X0401, light source used: made by Eye Graphics Co., Ltd., metal halide lamp M04-L41
  • the curing reaction of the curable resin layer 3A was partially advanced by irradiating with ultraviolet rays so that the intensity was 400 mW / cm 2 and the total irradiation amount was 2000 mJ / cm 2 .
  • the irradiation output was measured with an illuminance meter (“UIT-250” manufactured by USHIO INC.).
  • the glass base 60 and another strip-shaped glass base 61 are connected to the glass base 60 while interposing the curable resin layer 3 ⁇ / b> A after ultraviolet irradiation.
  • bonding was performed while applying a load of 5 kgf. Both end portions 61E of the glass base 61 of the obtained glass joined body were fixed in a state where the glass base 61 was horizontal with respect to the ground and the glass base 60 was positioned below the glass base 61.
  • a curable resin composition (1 mL) was dropped on the surface 62S of the soda glass 62 inside the guide 65 and stretched with a glass rod to form a curable resin layer.
  • Irradiation intensity with respect to the formed curable resin layer using an ultraviolet irradiation device (Igraphics Co., Ltd., US5-X0401, use light source: Eyegraphics Co., Ltd., metal halide lamp M04-L41) total dose at 400 mW / cm 2 is irradiated such that the 2000 mJ / cm 2, was allowed to proceed a curing reaction of the curable resin layer.
  • the irradiation output was measured with an illuminance meter (“UIT-250” manufactured by USHIO INC.).
  • the thickness of the curable resin layer after light irradiation was 150 ⁇ m.
  • the light transmittance of the curable resin layer after light irradiation at a wavelength of 400 to 700 nm was measured using a visible ultraviolet spectrophotometer (“UV-2400PC” manufactured by Shimadzu Corporation). Based on the average light transmittance at 400 to 700 nm, the light shielding property was evaluated according to the following criteria. A: Average light transmittance at 400 to 700 nm is less than 10% F: Average light transmittance at 400 to 700 nm is 10% or more
  • Table 1 shows the evaluation results of the adhesive strength and the light shielding property regarding each curable tree composition.
  • a light shielding layer having sufficient light shielding properties can be easily formed in a narrow region by a method of applying a curable resin composition. Furthermore, the formed light shielding layer expressed high adhesive force.
  • SYMBOLS 1 ... Image display part, 3 ... Light-shielding layer, 5 ... Frame part, 3A ... Curable resin layer, 20 ... Cover member, 21 ... Cover glass, 22 ... Frame part, 41 ... Liquid crystal panel, 41S ... Image display surface, 42 DESCRIPTION OF SYMBOLS ... Light-transmitting pressure sensitive adhesive layer, 43 ... Backlight part, 45 ... Light source, 46 ... Optical sheet part, 51 ... Resin frame, 52 ... Backlight frame, 53 ... Housing frame, 60, 61 ... Glass base, 61E ... Both ends of the glass base 61, 62 ... soda glass, 62S ... surface of the soda glass 62, 65 ... guide, 100 ... image display device, W ... width of the light shielding layer.

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un dispositif d'affichage d'image qui comprend une unité d'affichage d'image qui a un panneau à cristaux liquides et un élément de couvercle, une unité de cadre qui est disposée autour et supporte l'unité d'affichage d'image, et une couche de blocage de lumière qui est formée entre l'unité de cadre et l'unité d'affichage d'image. Ce procédé comprend, dans l'ordre, une étape consistant à revêtir l'unité d'affichage d'image ou l'unité de cadre avec une composition de résine durcissable contenant un colorant pour former une couche de résine durcissable en forme de cadre, une étape pour favoriser la réaction de durcissement de la couche de résine durcissable par irradiation de la couche de résine durcissable avec des rayons d'énergie active, et une étape pour lier l'unité d'affichage d'image et l'unité de cadre tandis que la couche de résine durcissable est interposée entre celles-ci.
PCT/JP2017/030351 2016-08-24 2017-08-24 Procédé de fabrication d'un dispositif d'affichage d'image Ceased WO2018038212A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JPPCT/JP2016/074712 2016-08-24
PCT/JP2016/074712 WO2018037514A1 (fr) 2016-08-24 2016-08-24 Procédé pour la fabrication d'un dispositif d'affichage d'images

Publications (1)

Publication Number Publication Date
WO2018038212A1 true WO2018038212A1 (fr) 2018-03-01

Family

ID=61244937

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/JP2016/074712 Ceased WO2018037514A1 (fr) 2016-08-24 2016-08-24 Procédé pour la fabrication d'un dispositif d'affichage d'images
PCT/JP2017/030351 Ceased WO2018038212A1 (fr) 2016-08-24 2017-08-24 Procédé de fabrication d'un dispositif d'affichage d'image

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/074712 Ceased WO2018037514A1 (fr) 2016-08-24 2016-08-24 Procédé pour la fabrication d'un dispositif d'affichage d'images

Country Status (2)

Country Link
TW (1) TW201815580A (fr)
WO (2) WO2018037514A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010128155A (ja) * 2008-11-27 2010-06-10 Kyoritsu Kagaku Sangyo Kk 表示モジュール及び表示モジュールの製造方法
JP2013015760A (ja) * 2011-07-06 2013-01-24 Shibaura Mechatronics Corp 接着剤供給装置及び接着剤供給方法
US20150055316A1 (en) * 2013-08-20 2015-02-26 Samsung Display Co., Ltd. Display device and method for fabricating the same
US20160154271A1 (en) * 2014-12-01 2016-06-02 Lg Display Co., Ltd. Liquid crystal display device and method for manufacturing the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010128155A (ja) * 2008-11-27 2010-06-10 Kyoritsu Kagaku Sangyo Kk 表示モジュール及び表示モジュールの製造方法
JP2013015760A (ja) * 2011-07-06 2013-01-24 Shibaura Mechatronics Corp 接着剤供給装置及び接着剤供給方法
US20150055316A1 (en) * 2013-08-20 2015-02-26 Samsung Display Co., Ltd. Display device and method for fabricating the same
US20160154271A1 (en) * 2014-12-01 2016-06-02 Lg Display Co., Ltd. Liquid crystal display device and method for manufacturing the same

Also Published As

Publication number Publication date
WO2018037514A1 (fr) 2018-03-01
TW201815580A (zh) 2018-05-01

Similar Documents

Publication Publication Date Title
JP6178775B2 (ja) 光学用樹脂組成物及びそれを用いた光学用樹脂材料
WO2018038221A1 (fr) Composition de résine durcissable, dispositif d'affichage d'image et procédé de fabrication de dispositif d'affichage d'image
KR101907570B1 (ko) 투명 점착 시트
KR20150005563A (ko) 화상 표시 장치용 점착 시트, 화상 표시 장치의 제조 방법 및 화상 표시 장치
JP6866880B2 (ja) 光硬化性粘着シート
CN104334344A (zh) 光学构件及用于制造该光学构件的紫外线固化型胶粘剂
KR20150067101A (ko) 하드 코트 필름 및 그것을 사용한 터치 패널
JP2021004373A (ja) 光硬化性粘着シート積層体、光硬化性粘着シート積層体の製造方法及び画像表示パネル積層体の製造方法
JP2019147865A (ja) 活性エネルギー線硬化型接着剤組成物、偏光フィルムおよびその製造方法、光学フィルム、ならびに画像表示装置
TW201726876A (zh) 光硬化性樹脂組成物及影像顯示裝置之製造方法
WO2022071387A1 (fr) Film de polarisation, film optique et dispositif d'affichage d'image
JP6427954B2 (ja) フレキシブル透明基板
WO2018038226A1 (fr) Composition de résine durcissable, dispositif d'affichage d'image, et procédé de fabrication d'un dispositif d'affichage d'image
JP2019137710A (ja) 硬化性樹脂組成物、画像表示装置及び画像表示装置の製造方法
WO2019016960A1 (fr) Procédé de production d'un corps assemblé, corps assemblé, affichage à cristaux liquides et dispositif d'affichage d'image
WO2018038212A1 (fr) Procédé de fabrication d'un dispositif d'affichage d'image
JP6427955B2 (ja) フレキシブル透明基板
WO2018038217A1 (fr) Composition de résine durcissable
JPWO2015132876A1 (ja) 画像表示装置用粘着シート、それを用いた画像表示装置の製造方法及び画像表示装置
WO2019064385A1 (fr) Composition de résine durcissable, dispositif d'affichage d'image, et procédé de production d'un dispositif d'affichage d'image
JP6427956B2 (ja) フレキシブル透明基板
JP6427953B2 (ja) フレキシブル透明基板
US20240158669A1 (en) Optical laminate, optical member comprising same, and optical display device including same
WO2018038222A1 (fr) Composition de résine durcissable, dispositif d'affichage d'image et procédé de fabrication d'un dispositif d'affichage d'image
KR20240097745A (ko) 활성 에너지선 중합성 수지 조성물 및 적층체

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17843688

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

NENP Non-entry into the national phase

Ref country code: JP

122 Ep: pct application non-entry in european phase

Ref document number: 17843688

Country of ref document: EP

Kind code of ref document: A1