CN102388324A - Optical assembly having a display panel and methods of making and disassembling same - Google Patents

Optical assembly having a display panel and methods of making and disassembling same Download PDF

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Publication number
CN102388324A
CN102388324A CN2011800017420A CN201180001742A CN102388324A CN 102388324 A CN102388324 A CN 102388324A CN 2011800017420 A CN2011800017420 A CN 2011800017420A CN 201180001742 A CN201180001742 A CN 201180001742A CN 102388324 A CN102388324 A CN 102388324A
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CN
China
Prior art keywords
methyl
optical module
centipoises
acrylate oligomer
adhesive phase
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.)
Pending
Application number
CN2011800017420A
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Chinese (zh)
Inventor
斯坦利·C·布斯曼
苏尼尔·K·皮拉拉玛瑞
图-凡·T·特朗
克利斯托弗·J·坎贝尔
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3M Innovative Properties Co
Original Assignee
3M Innovative Properties Co
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
Priority claimed from PCT/US2010/047016 external-priority patent/WO2011119180A1/en
Application filed by 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Priority claimed from PCT/US2011/029787 external-priority patent/WO2011119828A1/en
Publication of CN102388324A publication Critical patent/CN102388324A/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/13338—Input devices, e.g. touch panels
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • C09J133/04—Homopolymers or copolymers of esters
    • C09J133/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/12—Esters of monohydric alcohols or phenols
    • C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
    • C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
    • C08F220/1808—C8-(meth)acrylate, e.g. isooctyl (meth)acrylate or 2-ethylhexyl (meth)acrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/12—Esters of monohydric alcohols or phenols
    • C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
    • C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
    • C08F220/1812—C12-(meth)acrylate, e.g. lauryl (meth)acrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
    • C08F220/28—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
    • C08F220/282—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety and containing two or more oxygen atoms
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
    • C08F220/28—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
    • C08F220/285—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety and containing a polyether chain in the alcohol moiety
    • C08F220/287—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety and containing a polyether chain in the alcohol moiety and containing polypropylene oxide in the alcohol moiety
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
    • C08F222/36—Amides or imides
    • C08F222/38—Amides
    • C08F222/385—Monomers containing two or more (meth)acrylamide groups, e.g. N,N'-methylenebisacrylamide
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/28—Adhesive materials or arrangements

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

An optically clear adhesive layer includes a liquid optically clear adhesive having a viscosity of less than about 20 Pa DEG s at a shear rate of 1 sec-1 and a thixotrope. The optically clear adhesive layer has a haze of about 2% or less, a viscosity of between about 2 and about 30 Pa DEG s at a shear rate of 10 sec-1, a displacement creep of about 0.2 radians or less when a stress of 10 Pa is applied for about 2 minutes and a recovery time of about 60 seconds or less to reach a delta of 35 degrees after a torque of about 100 microN DEG m is applied for about 60 seconds at a frequency of 1 Hz and immediately followed by a torque of 80 microN DEG m at a frequency of 1 Hz. The adhesive layer can be used in an optical assembly to bond a display panel to a substantially transparent substrate. The adhesive layer provides a cleavage strength between glass substrates of about 15 N/mm or less such that the optical assembly can be disassembled with little or no damage to the display panel or the substrate. Optical assemblies and methods of making the optical assembly are also disclosed. The optical assembly may be used in an optical device such as a handheld device, a television, a computer monitor, a laptop display, or a digital sign.

Description

Optical module and preparation and method for dismounting with display panel
Technical field
The invention discloses the optically clear adhesive layer that can be used for optical module.This optical module comprises that optics bonds to the display panel of another optical element, and this optical module can be used for display equipment.
Background technology
Optics is bonding to be can be used for through using the optical grade bonding agent that two optical elements are bonded together.In display application, optics bonding can be used for, be bonded together optical element (for example display panel, glass plate, touch-screen, diffuser, rigid compensation sheet, well heater) and fexible film (for example polaroid and retardation plate).Therefore the optical property of display can reduce to minimum and improve through the quantity that makes inner reflective surface, possibly advantageously eliminate in the display air gap between the optical element or make air gap quantity reduce to minimum at least.
Summary of the invention
In one embodiment, the optically clear adhesive layer comprises optically transparent fluid binder and thixotrope, and this optically transparent fluid binder is at 1sec -1Shear rate under viscosity be less than about 20Pas.The mist degree of optically clear adhesive layer is about 2% or littler, at 10sec -1Shear rate under viscosity between about 2Pas and about 30Pas; When the stress that applies 10Pa in the time of about 2 minutes; The displacement creep is about 0.2 radian or littler; And after the frequency with 1Hz applied about 60 seconds of the moment of torsion of about 1000 μ Nm and and then applies the moment of torsion of 80 μ Nm with the frequency of 1Hz, be about 60 seconds or shorter release time that reaches 35 degree δ values.
In another embodiment, herein disclosed is the optical module that comprises display panel.Optical module comprises: the substrate of display panel, substantial transparent and be arranged on display panel and the substrate of substantial transparent between adhesive phase.
Optical module disclosed herein can be used in the optical devices, and these optical devices comprise that (for example) has the hand-held device of display, televisor, computer monitor, laptop computer displays or digital direction board.
In another embodiment, the invention discloses the method for preparing optical module.
These aspects of the present invention will be described in following " embodiment " with other aspects.Under any circumstance, the foregoing invention content is not to be understood that this theme only receives the qualification of the shown claim of this paper in order to be the restriction to the theme that requires to protect.
Embodiment
Can use optical material to fill the gap between optical element or the optical module substrate.Optical module comprises the display panel that bonds to optical substrate, if with the coupling or the optical material filling gap between the two of the refractive index of matching panel and substrate almost, then this optical module can have beneficial effect.For example, can reduce between display panel and outside intrinsic sunlight and ambient light reflection between the emulsion sheet.Can under environmental baseline, improve the colour gamut and the contrast of display panel.Have the optical module of filling the gap and compare, also can have the shock resistance of improvement with same components with air gap.
The optical material that is used to fill the gap between optical element or the substrate generally includes bonding agent and various types of cured polymer compositions.Yet these optical materials are not suitable for the optical module that damages or do not damage its element when hoping dismounting or reprocessing after being prepared in hardly.This re-workability characteristic is that optical module is needed, because element is often frangible and expensive.For example, if when assembling or after the assembling, observe defective,, then need emulsion sheet be removed from display panel usually if perhaps emulsion sheet damages after sale.Hope is damaging under the situation of element hardly or not, comes assembly is reprocessed through remove emulsion sheet from display panel.Along with the size or the area of available display panel constantly increases, it is more and more important that re-workability becomes.
When particularly needing efficient and strict optical quality, possibly be difficult to the big optical module of manufacturing dimension or area.Gap between the optical element can be filled through following method: cast or injection curable compositions in the gap make composition solidify, so that element bonds together then.Yet the delivery time of these common combinations things is longer, and this causes the inefficiency of the method that is used to make large-scale optical module.
Optical module disclosed herein comprises adhesive phase and optical element, particularly display panel and the substrate of light transmission basically.Damaging hardly or not under the situation of element, adhesive phase allows people that assembly is reprocessed.The cleavage strength of adhesive phase between glass substrate makes and damaging hardly or not under the situation of element for about 15N/mm or littler, 10N/mm or littler or 6N/mm or littler, can obtain re-workability.Splitting gross energy on 1 inch * 1 inch area can be less than about 25kg*mm.
Adhesive phase is applicable to optical applications.For example, the transmissivity of adhesive phase in 460nm to 720nm wavelength coverage can be at least 85%.For the light of 460nm, 530nm and 670nm wavelength, adhesive phase by the transmissivity of every millimeter thickness can be respectively greater than about 85%, greater than about 90% with greater than about 90%.These transmissivity characteristics provide uniform transmittance in the visibility region of whole electromagnetic wave spectrum, and this is important for the color dot in keeping full-color display.
The chrominance section of the transparent characteristic of adhesive phase passes through its color coordinates (like CIE L *a *b *Rule is represented) further limit.For example, the b of color *Component should be less than about 1, more preferably less than about 0.5.b *These characteristics lower yellowness index is provided, this is important for the color dot of keeping in the full-color display.
The mist degree of the transparent characteristic of adhesive phase partly further limits through the percent haze value of adhesive phase, and this percent haze value is measured through haze meter (for example derive from the HazeGard Plus of Byk Gardner or derive from the UltraScan Pro of Hunter Labs).For example, the percent haze of adhesive phase should be less than about 2%, more preferably less than about 1%.These mist degree characteristics provide lower light scattering, and this is important for the output quality of keeping full-color display.
For the above reasons, adhesive phase preferably has and the refractive index match of the substrate of display panel and/or substantial transparent or the refractive index of close match.Through correct selection adhesive component, the refractive index of may command bonding agent.For example, through mixing the aromatic structure that comprises high level or comprising sulphur or the oligomer of halogen (for example bromine), diluting monomer etc. can increase refractive index.Otherwise the oligomer through mixing the aliphatic structure that comprises high level, diluting monomer etc. can be adjusted to refractive index than low value.For example, the refractive index of adhesive phase can be about 1.4 to about 1.7.
Can keep the transparency of bonding agent through correct selection adhesive component, adhesive component comprises oligomer, diluting monomer, filler, plastifier, tackifying resin, light trigger and helps any other component of bonding agent gross properties.Specifically; Only if mist degree is required result; For example be used for diffuse adhesives and use, otherwise adhesive component should be compatible with each other, for example they are not separated before or after being taken in and being cured to the time point that domain sizes and refringence cause light scattering and mist degree increase.In addition, adhesive component should not contain such particle, thereby this particle is insoluble to adhesive formula and big to forming mist degree by scattered light.If mist degree is required, for example in diffuse adhesives was used, this possibly be qualified so.In addition, various fillers (for example thixotropic materials) should fully disperse, and can cause being separated or light scattering of transmittance loss and mist degree increase in order to avoid form.In addition, if mist degree is required, for example in diffuse adhesives was used, this possibly be qualified so.In addition, these adhesive components should not apply the b of color or increase adhesive phase because of (for example) *Value or yellowness index and cause the color transparent characteristic to reduce.
Adhesive phase can be used for comprising the optical module with lower component: the substrate of display panel, substantial transparent and adhesive phase, adhesive phase are arranged between the substrate of display panel and substantial transparent.Adhesive phase can have any thickness.The specific thicknesses that adopts in the optical module can be confirmed by any amount of factor, for example, uses the design of the optical devices of this optical module maybe be in the gap that between the substrate of display panel and substantial transparent, has to a certain degree.The thickness of adhesive phase is generally about 1 μ m to about 5mm, about 50 μ m to about 1mm or about 50 μ m about 0.2mm extremely.
The fluid composition that can use optically transparent liquid adhesive or combine with thixotrope prepares adhesive phase, and wherein fluid composition has the viscosity that is suitable for efficiently making large-scale optical module.The area of large-scale optical module can be about 15cm 2To about 5m 2Or about 15cm 2To about 1m 2For example; The viscosity of fluid composition can be about 100 centipoises to about 140; 000 centipoise, about 100 centipoises are to about 10; 000 centipoise, about 100 centipoises to about 5000 centipoises, about 100 centipoises to about 1000 centipoises, about 200 centipoises to about 700 centipoises, about 200 centipoises to about 500 centipoises or about 500 centipoises to about 4000 centipoises, wherein the viscosity of composition is at 25 ℃ and 1sec -1Speed under measure.Fluid composition is applicable to multiple manufacturing approach.
Adhesive phase can comprise any optically transparent liquid adhesive, and its viscosity makes that adhesive phase is at 1sec when combining with thixotrope -1To 10sec -1Shear rate under viscosity for be no more than 30Pa.s, between between about 2Pas and the about 30Pas, particularly between about 5Pas and about 20Pas.At 1-10sec -1Under the squeegee that in for example stencil printing process, uses of this scope control adhesive phase under the ability that flows, make adhesive phase can under higher squeegee speed, not adhere on the squeegee.In addition, this viscosity is enough low, with the cavity of cutting blocks for printing through liquid filling, and can entrained bubbles, can not pass through liquid adhesive complete filling cavity because of illiquidity yet.1-10sec -1Scope control adhesive phase in ability than the squeegee current downflow of low velocity.At 1sec -1Speed under, the viscosity of adhesive phase is between about 18Pas and about 140Pas.At 0.01sec -1Speed under, the viscosity of adhesive phase is 700Pa.s, at least 2 at least, 000Pa.s and preferably at least 10,000Pa.s.At 0.01sec -1Speed under scope define adhesive phase and when have non-sagging character.
In one embodiment, the optically transparent liquid adhesive that is used for adhesive phase is at 1-10sec -1Shear rate under viscosity be about 20Pas or littler.Specifically, optically transparent liquid adhesive is at 1-10sec -1Shear rate under viscosity be about 10Pas or littler, more particularly viscosity is about 5Pas or littler.In these scopes, the viscosity of adhesive phase is with when adding thixotrope, being in the suitable scope.
In one embodiment; Adhesive phase comprises following each person's reaction product: multifunctional (methyl) acrylate oligomer; The viscosity that is included under 25 ℃ is the reactive diluent of simple function (methyl) acrylate monomer of about 4 centipoises to about 20 centipoises, and plastifier.Usually, (methyl) acrylic ester is meant acrylic ester and methacrylate functional.
Multifunctional (methyl) acrylate oligomer can comprise any or multiple in the following material: polyfunctional carbamate (methyl) acrylate oligomer, multifunctional polyester (methyl) acrylate oligomer and multifunctional polyethers (methyl) acrylate oligomer.Multifunctional (methyl) acrylate oligomer can be included at least two (methyl) acrylate groups that setting up period is participated in polyreaction, for example 2 to 4 (methyl) acrylate groups.Adhesive phase can comprise about 15 weight % to about 50 weight %, about 20 weight % to about 60 weight % or about 20 weight % to multifunctional (methyl) acrylate oligomer of about 45 weight %.Used specific multifunctional (methyl) acrylate oligomer and used amount can be depending on multiple factor.For example; Can select specific oligomer and/or its amount; Make that adhesive composition is that viscosity is about 100 centipoises to 140; The fluid composition of 000 centipoise, about 100 centipoises to about 10,000 centipoises, about 100 centipoises to about 5000 centipoises, about 100 centipoises to about 1000 centipoises, about 200 centipoises to about 700 centipoises, about 200 centipoises to about 500 centipoises or about 500 centipoises to about 4000 centipoises, wherein the viscosity of composition is at 25 ℃ and 1sec -1Speed under measure.For another example; Can select specific oligomer and/or its amount; Make that adhesive composition is that viscosity is about 100 centipoises to 140; The fluid composition of 000 centipoise, about 100 centipoises to about 10,000 centipoises, about 100 centipoises to about 5000 centipoises, about 100 centipoises to about 1000 centipoises, about 200 centipoises to about 700 centipoises, about 200 centipoises to about 500 centipoises or about 500 centipoises to about 4000 centipoises, wherein the viscosity of composition is at 25 ℃ and 1sec -1Speed under measure, and the Shore A hardness of the adhesive phase of gained about 30 for being lower than, be lower than about 20 or be lower than about 10.For another example, can select, make that adhesive composition is at 25 ℃ and 1sec specific oligomer and/or its amount -1Shear rate under viscosity be 18,000 centipoises to 140,000 centipoise, and at 25 ℃ and 0.01sec -1Shear rate under viscosity be 700,000 centipoises to 4, the fluid composition of 200,000 centipoises.Multifunctional (methyl) acrylate oligomer can comprise polyfunctional carbamate (methyl) acrylate oligomer with at least 2 (methyl) acrylate groups (like 2 to 4 (methyl) acrylate groups) of during curing participating in polyreaction.Usually, these oligomer comprise the reaction product that hydroxy-functional (methyl) acrylate ended is used in polyvalent alcohol and polyfunctional isocyanate reaction then.For example; Polyfunctional carbamate (methyl) acrylate oligomer can be formed by aliphatic polyester or polyether glycol; Aliphatic polyester or polyether glycol are then by dicarboxylic acid (like hexane diacid or maleic acid) and aliphatic diol (like diglycol or 1, the 6-hexanediol) condensation prepared.In one embodiment, polyester polyol comprises hexane diacid and diglycol.The polyfunctional isocyanate can comprise methylene dicyclohexyl isocyanates or 1, the 6-hexamethylene diisocyanate.Hydroxy-functional (methyl) acrylic ester can comprise hydroxyalkyl (methyl) acrylic ester, for example acrylic acid-2-hydroxyl ethyl ester, (methyl) acrylic acid-2-hydroxypropyl acrylate, acrylic acid-4-hydroxy butyl ester or (methyl) polyalkylene glycol acrylate ester.In one embodiment, polyfunctional carbamate (methyl) acrylate oligomer comprises the reaction product of polyester polyol, methylene dicyclohexyl isocyanates and hydroxy-ethyl acrylate.
Available polyfunctional carbamate (methyl) acrylate oligomer comprises the commercially available prod.For example, multifunctional aliphatic urethane (methyl) acrylate oligomer can comprise and derives from Sartomer, Co. (Exton, PA) carbamate diacrylate CN9018, CN3108 and CN3211; Derive from GENOMER 4188/EHA (blend of GENOMER 4188 and acrylic acid-2-ethyl caproite), GENOMER4188/M22 (blends of GENOMER 4188 and GENOMER 1122 monomers), GENOMER 4256 and the GENOMER 4269/M22 (blends of GENOMER 4269 and GENOMER 1122 monomers) of Rahn USA Corp. (Aurora IL); Derive from U-Pica8966,8967,8967A and their combination of Japan U-Pica Corp.; And derive from Bomar Specialties Co. (Torrington, CT) polyethers carbamate diacrylate BR-3042, BR-3641AA, BR-3741AB and BR-344.
Usually, depend on other components that are used to form adhesive phase and the required character of adhesive phase, polyfunctional carbamate (methyl) acrylate oligomer can use by any amount.Adhesive phase can comprise about 15 weight % to about 50 weight %, about 20 weight % to about 60 weight % or about 20 weight % to polyfunctional carbamate (methyl) acrylate oligomer of about 45 weight %.
Multifunctional (methyl) acrylate oligomer can comprise multifunctional polyester (methyl) acrylate oligomer.Available multifunctional polyester acrylate oligomer comprises the commercially available prod.For example, multifunctional polyester acrylic ester can comprise BE-211 that derives from Bomar Specialties Co. and the CN2255 that derives from Sartomer Co..
Multifunctional (methyl) acrylate oligomer can comprise multifunctional polyethers (methyl) acrylate oligomer.Available multifunctional polyethers acrylate oligomer comprises the commercially available prod.For example, multifunctional polyethers acrylic ester can comprise the GENOMER 3414 that derives from Rahn USA Corp..
The reaction product that forms adhesive phase is formed by reactive diluent.The viscosity that reactive diluent is included under 25 ℃ is simple function (methyl) acrylate monomer of about 4 centipoises to about 20 centipoises.Reactive diluent can comprise more than a kind of monomer, for example 2 to 5 kinds of different monomers.The instance of these monomers comprises IBOA, (methyl) IBOA, acrylic acid tetrahydro furfuryl ester, methacrylic acid tetrahydro furfuryl ester, oxyalkylated acrylic acid tetrahydro furfuryl ester, alkoxylate methacrylate, methacrylic acid tetrahydro furfuryl ester and their potpourri.For example, reactive diluent can comprise (methyl) acrylic acid tetrahydro furfuryl ester and (methyl) IBOA.For another example, reactive diluent can comprise oxyalkylated acrylic acid tetrahydro furfuryl ester and IBOA.
Usually, depend on other components that are used to form adhesive phase and the required character of adhesive phase, reactive diluent can use by any amount.With respect to the general assembly (TW) of adhesive phase, adhesive phase can comprise about 15 weight % to about 50 weight %, about 30 weight % to about 60 weight % or about 40 weight % to the reactive diluent of about 60 weight %.
Used specific reactivity thinning agent and used amount of monomer can be depending on multiple factor.For example; Can select certain monomers and amount thereof; Make that adhesive composition is that viscosity is about 100 centipoises to 140; The fluid composition of 000 centipoise, about 100 centipoises to about 10,000 centipoises, about 100 centipoises to about 5000 centipoises, about 100 centipoises to about 1000 centipoises, about 200 centipoises to about 700 centipoises, about 200 centipoises to about 500 centipoises or about 500 centipoises to about 4000 centipoises, wherein the viscosity of composition is at 25 ℃ and 1sec -1Speed under measure.For another example; Can select certain monomers and amount thereof; Make that adhesive composition is that viscosity is about 100 centipoises to 140; The fluid composition of 000 centipoise, about 100 centipoises to about 10,000 centipoises, about 100 centipoises to about 5000 centipoises, about 100 centipoises to about 1000 centipoises, about 200 centipoises to about 700 centipoises, about 200 centipoises to about 500 centipoises or about 500 centipoises to about 4000 centipoises, wherein the viscosity of composition is at 25 ℃ and 1sec -1Speed under measure, and the Shore A hardness of the adhesive phase of gained about 30 for being lower than, be lower than about 20 or be lower than about 10.For another example, can select, make that adhesive composition is at 25 ℃ and 1sec specific thinning agent and/or its amount -1Shear rate under viscosity be 18,000 centipoises to 140,000 centipoise, and at 25 ℃ and 0.01sec -1Shear rate under viscosity be 700,000 centipoises to 4, the fluid composition of 200,000 centipoises.
Adhesive phase comprises increases its flexibility and flexible plastifier.Plastifier is known, and does not participate in the polymerization of (methyl) acrylate group usually.Plastifier can comprise more than a kind of plasticizer materials.Plastifier can comprise oil.Suitable oil comprises vegetable oil, mineral oil and soybean oil.Adhesive phase can comprise greater than 5 weight % to about 20 weight % or greater than the plastifier of 5 weight % to about 15 weight %.Used certain plasticizers and used amount can be depending on multiple factor.For example; Can select specific plastifier and/or its amount; Make that adhesive composition is that viscosity is about 100 centipoises to 140; The fluid composition of 000 centipoise, about 100 centipoises to about 10,000 centipoises, about 100 centipoises to about 5000 centipoises, about 100 centipoises to about 1000 centipoises, about 200 centipoises to about 700 centipoises, about 200 centipoises to about 500 centipoises or about 500 centipoises to about 4000 centipoises, wherein the viscosity of composition is at 25 ℃ and 1sec -1Speed under measure.For example; Can select specific plastifier and/or its amount; Make that adhesive composition is that viscosity is about 100 centipoises to 140; The fluid composition of 000 centipoise, about 100 centipoises to about 10,000 centipoises, about 100 centipoises to about 5000 centipoises, about 100 centipoises to about 1000 centipoises, about 200 centipoises to about 700 centipoises, about 200 centipoises to about 500 centipoises or about 500 centipoises to about 4000 centipoises, wherein the viscosity of composition is at 25 ℃ and 1sec -1Speed under measure and the Shore A hardness of the adhesive phase of gained is about 30 for being lower than, be lower than about 20 or be lower than about 10.For another example, can select, make that adhesive composition is at 25 ℃ and 1sec specific plastifier and/or its amount -1Shear rate under viscosity be 18,000 centipoises to 140,000 centipoise and at 25 ℃ and 0.01sec -1Shear rate under viscosity be 700,000 centipoises to 4, the fluid composition of 200,000 centipoises.
The reaction product that forms adhesive phase can also comprise simple function (methyl) acrylate monomer with alkylene oxide functional group.This simple function (methyl) acrylate monomer with alkylene oxide functional group can comprise more than one monomer.Alkylidene functional group comprises monoethylene glycol and propylene glycol.Functionalized with glycols group is made up of the unit, and monomer can have 1 to 10 epoxy alkane unit, 1 to 8 epoxy alkane unit or 4 to 6 epoxy alkane units anywhere.Simple function (methyl) acrylate monomer with alkylene oxide functional group can comprise the propylene glycol mono acrylic ester that derives from Cognis Ltd. with trade name BISOMER PPA6.This monomer has 6 propylene glycol unit.Simple function (methyl) acrylate monomer with alkylene oxide functional group can comprise the ethylene glycol methacrylate that derives from Cognis Ltd. with trade name BISOMER mpeg 3 50MA.This monomer on average has 7.5 monoethylene glycol unit.
Adhesive phase can comprise simple function with alkylene oxide functional group (methyl) acrylate monomer of about 5 weight % to about 30 weight % or about 10 weight % to about 20 weight %.Used specific monomer and used amount can be depending on multiple factor.For example; Can select certain monomers and/or its amount; Make that adhesive composition is that viscosity is about 100 centipoises to 140; The fluid composition of 000 centipoise, about 100 centipoises to about 10,000 centipoises, about 100 centipoises to about 5000 centipoises, about 100 centipoises to about 1000 centipoises, about 200 centipoises to about 700 centipoises, about 200 centipoises to about 500 centipoises or about 500 centipoises to about 4000 centipoises, wherein the viscosity of composition is at 25 ℃ and 1sec -1Speed under measure.For another example; Can select certain monomers and/or its amount; Make that adhesive composition is that viscosity is about 100 centipoises to 140; The fluid composition of 000 centipoise, about 100 centipoises to about 10,000 centipoises, about 100 centipoises to about 5000 centipoises, about 100 centipoises to about 1000 centipoises, about 200 centipoises to about 700 centipoises, about 200 centipoises to about 500 centipoises or about 500 centipoises to about 4000 centipoises, wherein the viscosity of composition is at 25 ℃ and 1sec -1Speed under measure, and the Shore A hardness of the adhesive phase of gained about 30 for being lower than, be lower than about 20 or be lower than about 10.For another example, can select, make that adhesive composition is at 25 ℃ and 1sec certain monomers and/or its amount -1Shear rate under viscosity be 18,000 centipoises to 140,000 centipoise, and at 25 ℃ and 0.01sec -1Shear rate under viscosity be 700,000 centipoises to 4, the fluid composition of 200,000 centipoises.
Adhesive phase contains on a small quantity or does not contain aforesaid tackifier.Usually use tackifier to increase the sticking outstanding property of bonding agent.Used specific tackifier and used amount can be depending on multiple factor.Can select tackifier and/or its amount, make the cleavage strength of bonding agent between glass substrate be about 15N/mm or littler, 10N/mm or littler or 6N/mm or littler.Can select specific tackifier and/or its amount; Make that adhesive composition is that viscosity is about 100 centipoises to 140; 000 centipoise, about 100 centipoises are to about 10; The fluid composition of 000 centipoise, about 100 centipoises to about 5000 centipoises, about 100 centipoises to about 1000 centipoises, about 200 centipoises to about 700 centipoises, about 200 centipoises to about 500 centipoises or about 500 centipoises to about 4000 centipoises, wherein the viscosity of composition is at 25 ℃ and 1sec -1Speed under measure.For another example; Can select specific tackifier and/or its amount; Make that adhesive composition is that viscosity is about 100 centipoises to 140; The fluid composition of 000 centipoise, about 100 centipoises to about 10,000 centipoises, about 100 centipoises to about 5000 centipoises, about 100 centipoises to about 1000 centipoises, about 200 centipoises to about 700 centipoises, about 200 centipoises to about 500 centipoises or about 500 centipoises to about 4000 centipoises, wherein the viscosity of composition is at 25 ℃ and 1sec -1Speed under measure, and the Shore A hardness of the adhesive phase of gained about 30 for being lower than, be lower than about 20 or be lower than about 10.For another example, can select, make that adhesive composition is at 25 ℃ and 1sec specific tackifier and/or its amount -1Shear rate under viscosity be 18,000 centipoises to 140,000 centipoise, and at 25 ℃ and 0.01sec -1Shear rate under viscosity be 700,000 centipoises to 4, the fluid composition of 200,000 centipoises.
Adhesive phase can comprise the reaction product between following each person: about 15 weight % to multifunctional (methyl) acrylate oligomer of about 50 weight %, about 15 weight % to about 50 weight % reactive diluent and greater than the plastifier of 5 weight % to 25 weight %.Reaction product can also comprise simple function with alkylene oxide functional group (methyl) acrylate monomer of about 10 weight % to about 20 weight %.This adhesive phase can have and is lower than about 15N/mm, is lower than about 10N/mm or is lower than splitting power between the glass of about 6N/mm.
Adhesive phase can comprise the reaction product between following each person: about 20 weight % to multifunctional (methyl) acrylate oligomer of about 60 weight %, about 30 weight % to about 60 weight % reactive diluent and greater than the plastifier of 5 weight % to 25 weight %.Reaction product can also comprise simple function with alkylene oxide functional group (methyl) acrylate monomer of about 10 weight % to about 20 weight %.This adhesive phase can have and is lower than about 15N/mm, is lower than about 10N/mm or is lower than splitting power between the glass of about 6N/mm.
Adhesive phase can comprise the reaction product between following each person: about 25 weight % to multifunctional (methyl) acrylate oligomer of about 45 weight %, about 40 weight % to the reactive diluent of about 60 weight % and greater than the plastifier of 5 weight % to about 15 weight %.Reaction product can also comprise simple function with alkylene oxide functional group (methyl) acrylate monomer of about 10 weight % to about 20 weight %.Adhesive phase can comprise the reaction product between following each person: about 20 weight % to polyfunctional carbamate (methyl) acrylate oligomer of about 50 weight %, about 30 weight % to the reactive diluent of about 60 weight % and greater than the plastifier of 5 weight % to about 25 weight %.Reaction product can also comprise simple function with alkylene oxide functional group (methyl) acrylate monomer of about 10 weight % to about 20 weight %.Adhesive phase can comprise the reaction product between following each person: about 25 weight % to polyfunctional carbamate (methyl) acrylate oligomer of about 45 weight %, about 40 weight % to the reactive diluent of about 60 weight % and greater than the plastifier of 5 weight % to about 15 weight %.Reaction product can also comprise simple function with alkylene oxide functional group (methyl) acrylate monomer of about 10 weight % to about 20 weight %.Adhesive phase can comprise the reaction product between following each person: the reactive diluent of about 30 weight % to polyfunctional carbamate (methyl) acrylate oligomer of about 60 weight %, about 20 weight % to about 30 weight %, greater than the pyrogenic silica of simple function with alkylene oxide functional group (methyl) acrylate monomer and the about 2 weight %s of 5 weight % to the plastifier of about 10 weight %, about 5 weight % to about 10 weight % to about 10 weight %.
Optical module can comprise: display panel; The substrate of substantial transparent and adhesive phase; Adhesive phase is arranged between the substrate of display panel and substantial transparent, and adhesive phase comprises the reaction product between following each person: polyfunctional rubber base (methyl) acrylate oligomer, carbon number are simple function (methyl) acrylate monomer and the liquid rubber of 4 to 20 pendent alkyl groups.
Polyfunctional rubber base (methyl) acrylate oligomer comprises any or multiple in the following material: polyfunctional poly butadiene (methyl) acrylate oligomer, multifunctional isoprene (methyl) acrylate oligomer and comprise butadiene and multifunctional (methyl) acrylate oligomer of the multipolymer of isoprene.Polyfunctional rubber base (methyl) acrylate oligomer can comprise polyfunctional poly butadiene (methyl) acrylate oligomer.Carbon number is that can to comprise carbon number be 8 to 20 side group to simple function (methyl) acrylate monomer of 4 to 20 pendent alkyl groups.Liquid rubber can comprise liquid isoprene.
Available polyfunctional poly butadiene (methyl) acrylate oligomer comprises difunctionality polybutadiene (methyl) the acrylate oligomer CN307 that derives from Sartomer Co..Available polyfunctional poly isoprene (methyl) acrylate oligomer comprises and derives from Kuraray America, methacrylated isoprene oligomer UC-102 and the UC-203 of Inc..
Available simple function (methyl) acrylate monomer that has carbon number and be 4 to 20 pendent alkyl groups comprises acrylic acid-2-ethyl caproite, lauryl acrylate, isodecyl acrylate and acrylic acid stearyl.
Liquid rubber can comprise and derive from Kuraray, the LIR-30 liquid isoprene rubber of Inc. and LIR-390 liquid butadiene/isoprene copolymer rubber and derive from Sartomer Co., RICON 130 liquid polybutadiene rubbers of Inc..
Adhesive phase can also comprise aforesaid plastifier.
Adhesive phase can comprise the reaction product between following each person: the carbon number of about 20 weight % to polyfunctional rubber base (methyl) acrylate oligomer of about 60 weight %, about 20 weight % to about 60 weight % is simple function (methyl) acrylate monomer of 4 to 20 pendent alkyl groups and from greater than the liquid rubber of 5 weight % to about 25 weight %.
Adhesive phase can comprise the reaction product between following each person: the carbon number of about 20 weight % to polyfunctional rubber base (methyl) acrylate oligomer of about 50 weight %, about 20 weight % to about 50 weight % is simple function (methyl) acrylate monomer of 4 to 20 pendent alkyl groups and from greater than the liquid rubber of 5 weight % to about 25 weight %.
Adhesive phase comprises on a small quantity or does not contain aforesaid tackifier.
Adhesive phase can comprise tackifier.Tackifier are viscosity or other character of knowing and be used to strengthen bonding agent.There are many dissimilar tackifier but nearly all bonding agent all can classify as: abietic resin, it is derived from wood rosin, gum rosin or Starex; Hydrocarbon resin, it is processed by the petroleum-type raw material; Or terpene resin, it is derived from the terpenes raw material of timber or some fruit.Adhesive phase can comprise (as) 0.01 weight % to about 20 weight %, about 0.01 weight % to about 15 weight % or 0.01 weight % to the tackifier of about 10 weight %.Adhesive phase can be substantially free of tackifier, comprises the tackifier of 0.01 weight % to about 5 weight % or about 0.01 weight % to about 0.5 weight % like the general assembly (TW) with respect to adhesive phase.Adhesive phase can not contain tackifier.
Adhesive phase can be soft, for example, the Shore A hardness of this layer can be lower than about 30, be lower than about 20 or be lower than about 10.
Adhesive phase can show to have a small amount of contraction or do not have contraction, as less than about 5%, depends on specifically how many qualified amounts is actually.
In another embodiment, bonding agent can be based on organosilicon.For example, bonding agent can use the addition curing chemical reaction between silane-functionalised organosilicon and vinyl or allyl functional organosilicon to process.The organosilicon of addition curing is known in the art, and they comprise usually can be through heat or UV radiation and the platinum based catalyst of activation.Equally, but can bi-component organosilicon liquid adhesive or gel be formed the base-material of material as this thixotroping printing material.The organosilicon of these types can be dependent on the condensation chemical reaction and needs heating, to quicken curing mechanism.
Usually, adhesive phase can comprise (for example) metal oxide particle, with the refractive index of change adhesive phase or the viscosity (being described below) of liquid adhesive composition.Can use the metal oxide particle of substantial transparent.For example, the thick disk of the 1mm of metal oxide particle can absorb and is lower than about 15% the light on this disk that is incident in adhesive phase.The instance of metal oxide particle comprises clay, Al 2O 3, ZrO 2, TiO 2, V 2O 5, ZnO, SnO 2, ZnS, SiO 2With their potpourri, and other abundant transparent non-oxide ceramic materials.Can carry out surface treatment to metal oxide particle, to improve it in adhesive phase and the dispersiveness that is used for being coated with the composition of this layer.Surface treatment comprises with the instance of chemical substance: silane, siloxane, carboxylic acid, phosphonic acids, zirconate, titanate, or the like.The technology that applies this surface treatment chemicals is known.Also can use organic filler, for example the filler of cellulose, castor oil wax and polyamide.
In certain embodiments, adhesive phase comprises pyrogenic silica.Suitable pyrogenic silica includes, but is not limited to: AEROSIL 200 and AEROSIL R805 (all deriving from Evonik Industries); CAB-O-SIL TS 610 and CAB-O-SIL T 5720 (all deriving from Cabot Corp.), and HDK H2ORH (deriving from Wacker Chemie AG).
In certain embodiments, adhesive phase comprises the pyrolysismethod aluminium oxide, and for example AEROXIDE ALU 130 (derives from Evonik (Parsippany, NJ)).
In certain embodiments, adhesive phase comprises clay, for example GARAMITE 1958 (deriving from Southern Clay Products).
Metal oxide particle can be by producing the amount use that required effect needs; For example by the general assembly (TW) of adhesive phase, account for about 2 weight % to about 10 weight %, about 3.5 weight % to about 7 weight %, about 10 weight % to about 85 weight % or about 40 weight % to about 85 weight %.Metal oxide particle adds the degree that can not bring worthless color, mist degree or transmissison characteristic only to.Usually, the particle mean size of particle can be about 1nm to about 100nm.
In certain embodiments, optically transparent liquid adhesive comprises non-reacted oligomeric rheology modifier.Do not accept the constraint of opinion, non-reacted oligomeric rheology modifier is set up viscosity through hydrogen bond or other self-association mechanism under lower shear rate.The instance of suitable non-reacted oligomeric rheology modifier includes, but is not limited to: the polyhydroxycarboxyliacid acid acid amides (for example derives from Byk-Chemie GmbH (Wesel; Germany) BYK 405), the polyhydroxycarboxyliacid acid ester (for example derives from Byk-Chemie GmbH (Wesel; Germany) BYK R-606), modified urea (for example derives from King Industries (Norwalk, DISPARLON 6100 CT), DISPARLON 6200 or DISPARLON 6500; Or derive from Byk-Chemie GmbH (Wesel, BYK 410 Germany)), metal sulfonate (for example derives from King Industries (Norwalk, K-STAY 501 CT); Or derive from Lubrizol Advanced Materials (Cleveland; OH) IRCOGEL 903), the acroleic acid esterification oligomeric amine (for example derives from Rahn USA Corp (Aurora; IL) GENOMER 5275), polyacrylic (for example derives from Lubrizol Advanced Materials (Cleveland; OH) CARBOPOL 1620), modified polyurethane (for example derives from King Industries (Norwalk, K-STAY 740 CT)) or polyamide.In certain embodiments, non-reacted oligomeric rheology modifier is selected, making can be miscible and compatible with optically transparent bonding agent, is separated and that mist degree is reduced to is minimum with restriction.
In certain embodiments, adhesive phase can be formed by optically transparent thixotropic liquid bonding agent.As used herein, if the composition shear thinning, promptly viscosity reduces when composition receives shear stress in the given time period, and when shear stress reduced or remove, viscosity recovery or part were recovered, and then said composition are regarded as thixotropic composition subsequently.This type of bonding agent shows very little flowability or does not have flowability under zero stress or the condition near zero stress.Thixotropic advantage is that bonding agent can easily distribute through methods such as (for example) pin distribution, because their viscosity under the low shear rate condition reduces fast.It only is that full-bodied main advantage is that trowel adhesive is difficult to distribute and be difficult to flow during using that thixotropic behavior is compared.Can be through particle being added preparation thixotropic adhesive composition in the composition.In certain embodiments, add pyrogenic silica with the amount of about 2 weight %, to give the liquid adhesive thixotropy to about 10 weight % or about 3.5 weight % to about 7 weight %.
In certain embodiments, can be with at 1sec -1To 10sec -1Shear rate under viscosity be no more than 30Pa.s, between between about 2Pas and the about 30Pas, particularly any optically transparent liquid adhesive between about 5Pas and about 20Pas combines with thixotropic agent, is applicable to the optically transparent thixotropic liquid bonding agent of stencil printing or serigraphy with formation.The composition that the efficient of thixotropic agent and optical property depend on optically transparent liquid adhesive with and with the interaction of thixotropic agent.For example, with regard to the thixotrope or water wettability silicon dioxide that combine, high polar monomer (for example acrylic acid), the existence that contains acid or carboxylic monomer or oligomer can destroy thixotropy or optical property.
In certain embodiments, can be in the viscosity of the optically transparent liquid adhesive of control under two kinds or the more kinds of different shear rate.In one embodiment, adhesive phase is at 25 ℃ and 10sec -1Shear rate under viscosity between about 2Pas and the about 30Pas, particularly between about 5Pas and about 20Pas.In one embodiment, adhesive phase is at 25 ℃ and 0.01sec -10Shear rate under viscosity at about 700Pas and about 10, between the 000Pas, particularly between about 1,000Pas and about 8 is between the 000Pas.In one embodiment, adhesive phase is at 25 ℃ and 1sec -1Shear rate under viscosity between about 18Pas and the about 140Pas, particularly between about 30Pas and about 100Pas.
In certain embodiments, when the stress with 10Pa is applied to when keeping 2 minutes on the bonding agent, the displacement creep of adhesive phase is about 0.2 radian or littler.Particularly, when the stress with 10Pa is applied to when keeping 2 minutes on the optically transparent liquid adhesive, the displacement creep of bonding agent is about 0.1 radian or littler.Usually, the displacement creep is the value that under 25 ℃, records through AR2000 type flow graph that uses TA Instruments manufacturing and 40mm diameter * 1 ° circular cone, and is defined as the anglec of rotation of circular cone when applying the stress of 10Pa to bonding agent.(for example gravity and surface tension) thixotropic adhesive layer anti-current ability moving or suspension is relevant under displacement creep and the utmost point low-stress.
In certain embodiments, when in cone-and-plate-rheometer, applying the moment of torsion of 80 μ N.m with the frequency of 1Hz, the δ of optically transparent liquid adhesive is 45 degree or littler, particularly 42 degree or littler, 35 degree or littler and be more especially 30 degree or littler particularly.δ is the phase lag between stress and tension force when pointing to material and applying oscillation force (stress) and measure the displacement (tension force) that is produced.The unit that distributes for δ is degree.δ is relevant with " solid " behavior or its non-sagging character of extremely hanging down thixotropic adhesive layer under the oscillatory stress.
Adhesive phase can also be under slave unit (squeegee during for example stencil printing is used) through after regain its non-sagging structure at short notice.In one embodiment; The release time of adhesive phase for less than about 60 seconds, particularly less than about 30 seconds, be more especially less than about 10 seconds; With about 60 seconds of the moment of torsion that applies about 1000 μ Nm under the 1Hz frequency and and then after applying the moment of torsion of 80 μ Nm under the 1Hz frequency, reach the δ value of 35 degree.
When being cured, can light trigger be used for fluid composition through ultraviolet radiation.Be used for radical-cured light trigger comprise organic peroxide, azo-compound, quinine, nitro compound, halogen acyl, hydrazone, sulfhydryl compound, pyrylium compound, imidazoles, chlorotriazine, styrax, styrax alkyl ether, ketone, benzophenone, or the like.For example; Adhesive composition can comprise with trade name LUCIRIN TPO-L and derives from 2 of BASF Corp.; 4,6-trimethylbenzoyl phenyl-phosphonic acid ethyl ester or derive from the 1-hydroxy-cyclohexyl phenyl ketone of Ciba Specialty Chemicals with trade name IRGACURE 184.By the weight of oligomer in the polymerisable compound and monomer material, the concentration of light trigger Chang Yiyue 0.1 weight % to 10 weight % or 0.1 weight % to 5 weight % is used.
Fluid composition and adhesive phase can randomly comprise one or more adjuvants, for example chain-transferring agent, anti-oxidant, stabilizing agent, fire retardant, viscosity modifier, foam-breaking agent, antistatic agent and wetting agent.If optical adhesive needs color, then can use colorant, for example dyestuff and pigment, fluorescent dye and pigment, phosphorescent coloring and pigment.
Above-mentioned adhesive phase forms through curable adhesive composition or fluid composition.Any type of electromagnetic radiation be can use, ultraviolet radiation and/or heat curing fluid composition for example can be used.Also can use electron beam irradiation.It is said that the aforesaid liquid composition adopts actinic radiation (promptly causing producing the radiation of photochemidal activity) to solidify.For example, actinic radiation can comprise the radiation of about 250nm to about 700nm.Actinic radiation sources comprises: tungsten sodium lamp, xenon arc lamp and mercury-arc lamp, incandescent lamp, bactericidal lamp, fluorescent light, laser instrument and light emitting diode.Can use the continuous emission coefficient of high strength that ultraviolet radiation is provided, for example use those systems that derive from Fusion UV Systems.
In certain embodiments, can actinic radiation be applied on the layer of fluid composition, make composition partially polymerized.Can fluid composition be arranged between the substrate of display panel and substantial transparent, make it partially polymerized then.Can fluid composition be arranged on the substrate of display panel or substantial transparent, make it partially polymerized then, next in display panel and the substrate another is arranged on the partially polymerized layer.
In certain embodiments, can apply actinic radiation, make composition fully or almost completely polymerization to the layer of fluid composition.Can fluid composition be arranged between the substrate of display panel and substantial transparent, make it then fully or almost completely polymerization.Can fluid composition be arranged on the substrate of display panel or substantial transparent, make it then fully or almost completely polymerization, next in display panel and the substrate another is arranged on the layer of polymerization.
In assembling process, expectation has basically fluid composition layer uniformly usually.With two unit firmly fix in position.If desired, can on whole assembly top, apply uniform pressure.If desired, can be through being used for packing ring, leg, shim and/or pad that assembly remains on the fixed range place are each other come the thickness of key-course.Possibly hide, to prevent assembly generation overflow.Can prevent or eliminate to sandwich air pocket through vacuum or other modes.Then, can apply radiation, to form adhesive phase.
Can prepare optical module in the air chamber through between two assemblies, forming air gap or air chamber, then fluid composition being set to.The instance of the method is at US 6,361, describes to some extent among 389B1 people such as () Hogue, and is included in perimeter assembly is sticked together, so that form air gap or air chamber along the sealing of periphery.As long as bonding agent do not influence aforesaid re-workability, just can use the bonding agent of any kind to adhere to, like adhesive tape, for example double-sided pressure-sensitive adhesive agent adhesive tape, packing ring, RTV fluid sealant etc.Then, fluid composition is poured in the air chamber through the opening at the periphery edge place.Perhaps, through some pressure injection apparatus (for example syringe) fluid composition is injected air chamber.Need another opening, overflow when filling air chamber, to allow air.Can use exhaust mode (for example vacuum), to help this process.Can apply actinic radiation or heat as stated then, to form adhesive phase.
For example can using, the assembling fixture described in the US 5,867,241 (people such as Sampica) prepares optical module.In the method, provide to comprise dull and stereotyped anchor clamps, wherein pin is pressed in this flat board.With these the configuration setting of pin, with generation and display panel and the corresponding pin district of size that waits to be attached to the assembly on this display panel to be scheduled to.When these pins were arranged such that in display panel and other assemblies are reduced to the pin district, each in four angles of display panel and other assemblies kept putting in place by these pins.The assembling and the alignment of these anchor clamps each assembly of auxiliary optical assembly under the situation of suitably controlling alignment tolerances.The additional embodiment of this assemble method is described by people such as Sampica.US 6,388, and 724B1 (people such as Campbell) has introduced and can how to have used leg, shim and/or pad so that assembly is remained on fixing distance each other.
In another embodiment, can optically transparent thixotropic liquid bonding agent be applied to one in the assembly that will assemble through stencil printing or all on both.Stencil printing is to sweep through brushing, spraying or squeegee to press bonding agent to shift method of patterning through the open region of cutting blocks for printing that is cut into or is processed by thin metal, plastics or cardboard.Squeegee is swept and pressed is the method for optimizing that obtains the binder liq coating of smooth uniform thickness.The outer boundary or the periphery of cutting blocks for printing and preferably only limiting metal, plastics or cardboard, thus make the inside of cutting blocks for printing not have metal, plastics or cardboard fully.Can be randomly, the rib of metal, plastics or cardboard or fillet can stride across the inside of cutting blocks for printing from a side direction opposite side, are used for strengthening the structure of cutting blocks for printing or prevent to cut blocks for printing the squeegee sagging of inside.The material of cutting blocks for printing is preferably metal.
Optical module disclosed herein can comprise the add-on assemble that is the layering form usually.For example, can the thermal source that comprise indium tin oxide or another kind of suitable layers of material be arranged on one of assembly.Additional assembly is described in (for example) US 2008/0007675A1 people such as () Sanelle to some extent.
Display panel can comprise the panel of any kind, for example display panels.Display panels is known, and comprises the liquid crystal material between the substrate (for example glass substrate and polymeric substrates) that is arranged on two substantial transparent usually.As used herein, substantial transparent is meant the substrate that is applicable to optical applications, as in 460nm to 720nm scope internal transmission factor being at least 85% substrate.The transmissivity of every millimeter thickness of optical substrate can be greater than about 85% (at 460nm place), greater than about 90% (at 530nm place) and greater than about 90% (at 670nm place).Be located at as the transparent conductive material of electrode on the inside surface of substrate of substantial transparent.In some cases, the outside surface of the substrate of substantial transparent is provided with the polarizing coating that only passes through a kind of polarization state of light basically.When on entire electrode, optionally applying voltage, liquid crystal material redirects, and with the adjustment polarization state of light, makes image form.Display panels also can comprise liquid crystal material; This liquid crystal material is arranged between thin-film transistor display panel and the common electrode panel; Wherein thin-film transistor display panel has a plurality of thin film transistor (TFT)s of arranging with matrix pattern, and the common electrode panel has common electrode.
Display panel can comprise plasma display.Plasma display is known, and generally includes the inert composition of the rare gas (for example neon and xenon) in the micro air chamber that is set in place between two face glasss.Electrode charging in the control circuit counter plate, this causes gas ionization and forms plasma, and plasma excitated fluorescent powder is luminous subsequently.
Display panel can comprise organic electroluminescence panel.These panels are essentially and are arranged on two organic material layers between the face glass.Organic material can include OLED (OLED) or polymer LED (PLED).These panels are known.
Display panel can comprise electrophoretic display device (EPD).Electrophoretic display device (EPD) is known, and is generally used for being called the display technique of Electronic Paper.Electrophoretic display device (EPD) comprises and is arranged on two liquid charged materials between the transparency electrode panel.The liquid charged materials can comprise nano particle, dyestuff and the charged reagent that is suspended in the non-polar hydrocarbon, or with the microcapsules that are suspended in the charged particle filling in the hydrocarbon materials.Microcapsules also can be suspended in the layer of liquid polymers.
The substrate that is used for the substantial transparent of optical module can comprise polytype and material.The substrate of substantial transparent is applicable to optical applications, and common transmissivity is at least 85% in the scope of 460nm to 720nm.The transmissivity of every millimeter thickness of substrate of substantial transparent can be greater than about 85% (at 460nm place), greater than about 90% (at 530nm place) and greater than about 90% (at 670nm place).
The substrate of substantial transparent can comprise glass or polymkeric substance.Available glass comprises that borosilicate glass, soda-lime-silica glass and other are applicable to the glass of display application as protecting cover.A kind of available particular glass comprises EAGLE XG and the JADE glass substrate that derives from Corning Inc..Available polymkeric substance comprises: polyester film, for example polyethylene terephthalate, polycarbonate membrane or plate; Acrylic film, for example polymethyl methacrylate film; And cyclo-olefin-polymer films, for example derive from ZEONOX and the ZEONOR of Zeon Chemicals L.P..The substrate of substantial transparent preferably has and display panel and/or the close refractive index of adhesive phase, for example about 1.4 to about 1.7.The thickness of the substrate of substantial transparent is generally about 0.5mm to about 5mm.
The substrate of substantial transparent can comprise touch-screen.Touch-screen is known, and generally includes the transparency conducting layer between the substrate that is arranged on two substantial transparent.For example, touch-screen can comprise the indium tin oxide that is arranged between glass substrate and the polymeric substrates.
Optical module disclosed herein can be used in the multiple optical devices, and these devices include, but is not limited to hand-held device (for example phone), televisor, graphoscope, projector, direction board.These optical devices can comprise backlight.
Instance
Material used in the following instance is described in table 1 to some extent.
Table 1
Figure BDA0000097440630000231
Figure BDA0000097440630000241
The preparation of optically transparent liquid adhesive
Preparation constitutes the comparative example 1-2 (C1-C2) of optical transparent liquid bonding agent and the composition of instance 1-9 (Ex1-9) according to table 2.For given composition, the LOCA component is added black mixer Max 200 (the about 100cm that derive from FlackTek Inc. (Landrum, South Carolina) 3) in, and use the Hauschild Speedmixer that derives from FlackTek Inc. TMDAC600FV mixed 4 minutes with the rotating speed of 2200rpm.
Table 2
Figure BDA0000097440630000251
1) viscosity of fluid composition=600 centipoises
2) the platinum amount=36ppm in the unit total compsn
3) viscosity of fluid composition=1300 centipoises
4) viscosity of fluid composition=3000 centipoises
Hardness measurement
Prepare ice hockey shape sample through filling four cavity mold with among the above-mentioned LOCA each.Cavity cuts out from aluminium sheet, is of a size of 1 inch diameter * 0.25 inch thickness.Mould comprises three assemblies: glass base portion, polyethylene terephthalate release liner and the aluminium sheet with cavity.Before filling, glass base portion, release liner and three elements of aluminium cavity of mould are clipped together with LOCA.Populated mould is exposed to ultraviolet radiation, and method is to let each mould all through all deriving from Fusion UV Systems, Inc. (Gaithersburg, the F300S type UV system of being furnished with H type bulb Maryland) and LC-6 type induction system.Let mould pass system 5 times with the speed of 4 inch per seconds.Then, mould is turned over, pass UV system 5 times with the speed of 4 inch per seconds again, thereby pass through the LOCA that the glass plate expose portion solidifies, to guarantee the LOCA full solidification.Through deriving from EIT, and Inc. (Sterling, UV Power Puck II Virginia) measures, and total UVA energy that each side joint is received all is about 2,500mJ/cm 2
After the ice hockey that will be used for all instances outside instance 4 and the instance 7 all is cooled to room temperature; Use immediately and derive from Rex Gauge Company; Inc. (Buffalo Grove, Shore A hardness instrumentation amount hardness Illinois), and let instance 4 and instance 7 at room temperature solidify minimum 16 hours.
Viscosity measurement
(New Castle, the AR2000Rheometer (AR2000 flow graph) that is furnished with 40mm, 1 ° of stainless steel circular cone and plate Delaware) carries out viscosity measurement to derive from TA Instruments through use.Use the stable-state flow program with 0.01sec -1To 25sec -1Frequency, the cone-plate gap of 28 μ m and 25 ℃ temperature carry out viscosity measurement.With 25 ℃ and 1sec -1Shear rate record viscosity.
Cleavage strength and gross energy
Use the ASTM D 1062-02 cleavage strength method of testing of improvement to carry out the cleavage strength measurement.Use is being laminated to two microslides on the 5 mils pottery that before is arranged on together on the bonding agent at a distance from pearl, with the thickness of 1 square inch overlapping area and 5 mils LOCA is arranged between 1 inch * 3 inches microslides of standard.Layer closes and comprises with hand second microslide being placed on to have LOCA and on first microslide of pearl, then manual pressure.Use derives from EXFO Photonic Solutions, Inc. (Mississauga, Ontario, (the about 2500mJ/cm of Omnicure 2000 high-pressure mercury point curing source Canada) 2The UVA energy) LOCA between the microslide was solidified 10 seconds.Adopt then and derive from 3M company (St.Paul, 3M Minnesota) TMScotch-Weld TMEpoxy Adhesive DP100 adheres to bonding good microslide on the skew aluminium block of stipulating among the ASTM D 1062-02, the curing of before test, spending the night then.This also allows 1 part of organosilicon to solidify (instance 4 and instance 7).(Eden (Prairie, Minnesota)) measures splitting power to use MTS Insight 30EL electromechanical test macro.Under 72 ° of F, making chuck speed is 2 inch per minute clocks.With maximum tear strength (being cleavage strength) (N/mm) and gross energy (kg*mm) record result.With adhesion failure or cohesion failure record failure mode.
Shrink and measure
Use derives from Micromeritics Instrument Corporation (Norcross, Accupyc II 1340Pycnometer Georgia) (Accupyc II 1340 picnometers) measurement volumes shrinking percentage.The uncured LOCA sample of known quality is put into the silver bottle of this picnometer.Then bottle is put into this picnometer, and the volume of measuring samples, the density of volume and Mass Calculation LOCA per sample.Sample quality is about 3.5 grams.By the program identical, measure the density of solidifying back LOCA sample with uncured sample.According to preparing the LOCA sample that solidifies with the said similar program of hardness measurement, different is that mould is processed by the teflon plate, and cavity thickness is that 3.27mm, diameter are 13.07mm.Then, shrink by following formula volume calculated.
{ [(1/ average fluid density)-(1/ average cured density)]/(1/ average fluid density) } * 100%
Re-workability is measured
Through following program, carry out the qualitative determination of LOCA and microslide unsticking ability (being re-workability).Thickness with 1mm places LOCA on 2 inches * 3 inches microslides.Through using the separated pearl of 5 mils pottery that before is arranged on together on the bonding agent in that two microslides are laminated to, LOCA thickness is maintained 5 mils.The layer process of closing comprises with hand second microslide being placed on to have LOCA and on first microslide of pearl, then manual pressure.According to above-mentioned hardness measurement program Solidification LOCA.After the curing, sample is placed under the environmental baseline spends the night.Hand-held about 1.5 inches long razor blade cutting edges slip into blade between two microslides in 2 inches sides of microslide, causing splitting of the LOCA that solidifies, thereby confirm re-workability.Manually to the razor blade application of force, to pry open microslide.Separate twice that microslide is required fully when being recorded in the application of force.In addition, also be recorded under the power that applies, whether microslide breaks.The time of two glass plate unstickings is short more, be regarded as usually re-workability associated therewith to improve effect just good more.If microslide breaks, then remove the residue glass that is attached on another piece microslide with similar program in processing.Record separates the T.T. of all glass.The time of two complete unstickings of glass plate is short more, be regarded as usually re-workability associated therewith to improve effect just good more.In addition, also monitor and write down the degree whether unsticking pattern, glass are broken and broken.
Table 3
Figure BDA0000097440630000281
1) shows that＜2 sample hardness can't measure on the Shore A hardness meter.This value is estimated value.
Table 4
Instance The unsticking time The unsticking pattern
C1 ＞10 minutes Two blocks of glass are all serious broken
C2 ＞10 minutes Two blocks of glass are all serious broken
Ex1 2 minutes 10 seconds Do not have damaged and remove
Ex2 1 minute 50 seconds Do not have damaged and remove
Ex3 3 minutes 10 seconds The top microslide is broken into polylith
Ex4 7 minutes 20 seconds The top microslide is broken into polylith
Ex5 20 seconds Do not have damaged and remove
Ex6 20 seconds The top microslide has broken once
Ex7 20 seconds Do not have damaged and remove
The reprocessing of assembly
Solidify the cleaning with uncured LOCA in order to help staying cover plate and/or LCD panel top, with the suitable condition of cure full solidification of assembly use of separating.Because of its elastic performance, can remove the LOCA of curing through stretch release.Through on cover plate and LCD panel, applying the LOCA of the removable residual solidified of pressure sensitive adhesive tape.Also can be through on the LOCA of the residual solidified on cover plate and the LCD panel, placing the LOCA that cylinder rod removes residual solidified.
Through insert tension (as) stainless steel, spun glass or nylon wire rod (diameter is slightly less than the gap size between two assemblies), the completely crued assembly of detachable cover and LCD panel.Then, can upwards pull at the stringing material, let the line of tension pass through two assemblies through a side against one of assembly.This forces wire rod to conform to the surface and the application of force above that of cover plate, thereby helps the unsticking of two assemblies.After being pulled through wire rod, can separate two assemblies through manually reversing.
Thixotroping LOCA
The viscosity measurement of optically transparent thixotropic liquid adhesive composition
(New Castle, the AR2000Rheometer (AR2000 flow graph) that is furnished with 40mm, 1 ° of stainless steel circular cone and plate Delaware) carries out viscosity measurement to derive from TA Instruments through use.Use the stable-state flow program with 0.001sec -1To 100sec -1Frequency, the cone-plate gap of 28 μ m and 25 ℃ temperature carry out viscosity measurement.
The rotation creep measurement of optically transparent thixotropic liquid adhesive composition
The AR2000Rheometer (AR2000 flow graph) that use is furnished with 40mm diameter, 1 ° of circular cone measures the rotation creep down at 25 ℃, and when the stress that applies 10Pa to adhesive composition is kept 2 minutes, with the anglec of rotation (radian) the record result of circular cone.
The δ of optically transparent thixotropic liquid adhesive composition measures
The AR2000Rheometer (AR2000 flow graph) that use is furnished with 40mm diameter, 1 ° of circular cone measures δ down at 25 ℃, and the moment of torsion that applies 80 μ N.m when the frequency with 1Hz writes down the result with the number of degrees when keeping 60 seconds.
Measure the release time of optically transparent thixotropic liquid adhesive composition
The AR2000Rheometer (AR2000 flow graph) that use is furnished with 40mm diameter, 1 ° of circular cone measures release time with oscillation procedure under 25 ℃; And with the frequency of 1Hz after the moment of torsion that optically transparent liquid adhesive applies 1000 μ N.m then applied the moment of torsion of 80 μ N.m in 60 seconds, write down the result with δ from the time (second) that maximal value drops to 35 degree.
Composition according to table 5 preparation comparative example 3 (C3) and instance 10.Component is added to white mixer Max 300 (the about 500cm that derives from FlackTek Inc. (Landrum, South Carolina) 3), and use the Hauschild Speedmixer that derives from FlackTek Inc. TMDAC 600FV mixed 4 minutes with the rotating speed of 2200rpm.With regard to instance 10, each side of container is scraped totally, to guarantee to have combined all pyrogenic silicas, then container was mixed 4 minutes again.
Table 5
Figure BDA0000097440630000301
The potpourri of instance 10 is clipped between 2 inches * 3 inches microslides with about 200 microns thickness.(BYK-Gardner USA (Columbia, MD)) measures T% and mist degree to use HazeGard Plus.The new system coating has 92.9T% (not proofreading and correct to glass) and 1.49 mist degrees.After under 60 ℃/85% relative humidity 72 hours, coating has 93.0T% (not proofreading and correct to glass) and 0.91 mist degree.
Under 25 ℃; Deriving from TA Instruments (New Castle; Delaware) (TA Instruments (New Castle, Delaware)) goes up the viscosity of measuring comparative example 3 and instance 10 to the AR2000Rheometer (AR2000 flow graph) that is furnished with 40mm, 1 ° of stainless steel circular cone and plate.With shear rate from 0.001sec -1Increase to 100sec -1Viscosity under the various shear rates is shown in Table 6.When the globule with instance 10 deposited on the microslide through the syringe/needle assembly, naked eyes were not observed sagging (no sag) after 1 minute.Instance 10 meets the viscosity criterion of appointment among this paper, promptly at 1sec -1Shear rate under viscosity be 18,000 centipoises to 140,000 centipoise is at 0.01sec -1Shear rate under viscosity be 700,000 centipoises to 4,200,000 centipoises.Yet, although at 1sec -1Under viscosity be 19,000 centipoises, but the globule of C3 has been observed visually tangible sagging after 1 minute.C3 meets the viscosity criterion of this paper, promptly at 1sec -1Shear rate under viscosity be 18,000 centipoises to 140,000 centipoise.Yet the viscosity of C3 has only 20,400 centipoises under the shear rate of 0.01sec-1, do not meet this paper regulation at 0.01sec -1Under viscosity be 700,000 centipoises to 4, the standard of 200,000 centipoises.
Table 6
Shear rate (sec -1) C3 viscosity (centipoise) Ex10 viscosity (centipoise)
0.01 20,400 4,159,000
0.1 19,000 870,600
1 19,000 132,800
10 19,100 30,000
Use AR2000Rheometer (AR2000 flow graph) and 40mm diameter, 1 ° of circular cone at 25 ℃ of displacement creep values of measurement comparative examples 3 and instance 10 down, the anglec of rotation of circular cone during being defined as the stress that applies 10Pa to bonding agent and keeping 2 minutes of displacement creep value.The displacement creep of instance 10 after 2 minutes is 0.021 radian, meet this paper regulation＜standard of 0.1 radian.Yet C3 is this standard of unmet after 2 minutes, and its displacement creep is 1.08 radians.
Through the component in the table 7 being added to white mixer Max 300 (the about 500cm that derives from FlackTek Inc. (Landrum, South Carolina) 3) the optically transparent thixotropic liquid bonding agent of middle preparation, and use the Hauschild Speedmixer that derives from FlackTek Inc. TMDAC600FV mixes with the rotating speed of 2200rpm.Mix after 4 minutes, each side of container is scraped totally,, then container was mixed 4 minutes again to guarantee to have combined all pyrogenic silicas.
Table 7
Figure BDA0000097440630000321
Like the viscosity of top comparative example 3 with instance 10 said measurement comparative examples 4 and instance 11 and instance 12, the result is shown in Table 8.If at 1sec -1Shear rate under viscosity be 18Pa.s to 140Pa.s, and at 0.01sec -1Under viscosity be 700Pa.s to 4200Pa.s, then thixotropy is regarded as well.
Respectively comparative example 4 and instance 11 and instance 12 are clipped in about 200 microns thickness between 2 inches * 3 inches the microslide, use 300 watts/inch Fusion H type bulb and 3000mJ/cm then 2The UVA energy (be cured through UV Power Puck (Sterling Va.) measures for EIT, Inc.).(BYK-Gardner USA (Columbia, MD)) measures mist degree to use HazeGard Plus.In table 8, write down haze value.If mist degree＜be 1%, the bonding agent that then solidifies is regarded as well.
Measure the loss in weight by following method: about 15g thixotrope is placed on container Max 300 (the about 500cm that derives from FlackTek Inc. (Landrum, South Carolina) 3) in, let container that thixotrope is housed under 25 ℃, bear the vacuum 2 minutes of 2000Pa then.Use the weight calculated weight percent loss of application of vacuum front and back thixotrope, and be recorded in the table 8.The loss in weight is during vacuum layer that 0.033% instance 11 carries out under 2000Pa pressure is closed bubbling not to take place, and the vacuum layer that the loss in weight is 0.177% C4 carries out under 2000Pa pressure in closing considerable bubbling has taken place.
Table 8
Figure BDA0000097440630000331
Preparation is used for the composition of thixotroping LOCA according to table 9.Only if indicate in addition hereinafter, otherwise all component is added among 100 glasss of the white mixer Max deriving from FlackTek Inc. (Landrum, South Carolina), and use the Hauschild Speedmixer that derives from FlackTek Inc. TMDAC 600FV mixed 4 minutes with the rotating speed of 2200rpm.
To comparative example C13, the BYK adjuvant is added the LOCA in the white mixer (100 glasss of Max derive from FlackTek Inc. (Landrum, South Carolina)) for comparative example C6, and use the Hauschild Speedmixer that derives from FlackTek Inc. TMDAC 600FV mixed 4 minutes with the rotating speed of 2200rpm.A200 is added in the content that mixes cup, use the Hauschild Speedmixer that derives from FlackTek Inc. then TMDAC 600FV mixed 4 minutes with the rotating speed of 2200rpm.
, the content that mixes is heated to 100 ℃ kept 30 minutes to comparative example C21 for comparative example C19, to combine thixotropic additive.After the heating,, use the Hauschild Speedmixer that derives from FlackTek Inc. then with the content cool to room temperature that mixes TMDAC 600FV mixed 4 minutes with the rotating speed of 2200rpm.
Comparative example C30 is unmodified LOCA 2312.
Table 9
For instance 15, in white mixer (60 glasss of Max derive from FlackTek Inc. (Landrum, South Carolina)), 0.26 gram A100 is added 5 gram DBA1000, use the Hauschild Speedmixer that derives from FlackTek Inc. then TMDAC 600FV mixed 4 minutes with the rotating speed of 2200rpm.Comparative example C30 is unmodified DBA1000.
According to the composition of table 10 preparation based on the comparative example that is used for thixotroping LOCA of SVR1300.Only if indicate in addition hereinafter, otherwise all component is added among 100 glasss of the white mixer Max deriving from FlackTek Inc. (Landrum, South Carolina), and use the Hauschild Speedmixer that derives from FlackTek Inc. TMDAC 600FV mixed 4 minutes with the rotating speed of 2200rpm.Comparative example C32 is unmodified SVR1300.
Table 10
Figure BDA0000097440630000361
Rheological measurement
Viscosity, displacement creep and δ measured value are found in table 11.
Table 11
Figure BDA0000097440630000371
The optical property of thixotroping LOCA
(BYK-Gardner USA (Columbia, MD)) measures transmissivity, T% and mist degree to use HazeGard Plus.The result is compiled in the table 12, and wherein each character is all measured three times at least.
Table 12
Figure BDA0000097440630000381
Prepare stock solution 1 (SS 1) through mixing following composition: 85.45 parts of U-Pica 8967A, 30.86 parts of CD611,42.73 parts of SR506A, 28.48 parts of KE311,213.74 parts of Bisomer PPA6,23.74 portions of soybean oils and 2.50 parts of TPO-L, wherein umber is a weight portion.
Prepare stock solution 2 (SS2) through mixing following composition: 93.2 parts of CN9018,80.4 parts of CD611,64.3 parts of SRS506A, 48.2 parts of Bisomer PPA6,32.2 portions of soybean oils and 3.22 parts of TPO-L.
Prepare stock solution 3 (SS3) through mixing following composition: 185.3 parts of U-Pica 8967A, 73.4 parts of U-Pica 8967AX, 40.6 parts of CD611,56.2 parts of SR506A, 67.8 parts of KE311,31.2 parts of Bisomer PPA6,38 portions of soybean oils and 7.5 parts of TPO-L.
According to table 13 following comparative example of preparation and instance.
Table 13
C31 C32 C33 C34 E16 E17 C35 E18 C36 C37
SS1 40 396 392 388 384 38
SS2 40 38
SS3 40 38
A200 0 04 08 12 16 2 0 2 0 2
Weight %A200 0％ 1％ 2％ 3％ 4％ 5％ 0％ 5％ 0％ 5％
The viscosity of C31-C37 and E16-E18, δ, rotation creep and mist degree are shown in Table 14.
Table 14
Figure BDA0000097440630000401
δ listed in the table 15 from the release time that maximal value is reduced to 35 degree.
Table 15
According to table 16 preparation comparative example C38 and comparative example C39.
Table 16
Figure BDA0000097440630000403
Under 25 ℃; Deriving from TA Instruments (New Castle; Delaware) (TA Instruments (New Castle, Delaware)) goes up the viscosity of measuring comparative example C38 and comparative example C39 to the AR2000Rheometer (AR2000 flow graph) that is furnished with 40mm, 1 ° of stainless steel circular cone and plate.With shear rate from 0.001sec -1Increase to 100sec -1Viscosity under the various shear rates is shown in Table 17.
Table 17
Figure BDA0000097440630000411
The coating of the instance 19 of preparation 150 micron thick between the thick microslide of 1mm, being exposed to through EIT Power Puck II radiometer measured value then is 3000mJ/cm 2The UVA energy under.The mist degree and the T% that record through Byk Gardner HazeGard Plus are respectively 91.6% and 3.1%.
A plurality of embodiment of the present invention has been described.Should be understood that, under the premise without departing from the spirit and scope of the present invention, can make various modifications.Therefore, other embodiment are also in the scope of equivalent structures book.

Claims (77)

1. optical module, it comprises:
Display panel;
The substrate of substantial transparent; With
Adhesive phase, said adhesive phase are arranged between the substrate of said display panel and said substantial transparent, and said adhesive phase comprises:
The reaction product of following material:
Multifunctional (methyl) acrylate oligomer and
The viscosity that reactive diluent, said reactive diluent are included under 25 ℃ is simple function (methyl) acrylate monomer of about 4 centipoises to about 20 centipoises; With
Plastifier.
2. optical module according to claim 1, said multifunctional (methyl) acrylate oligomer comprise any or multiple in the following material:
Polyfunctional carbamate (methyl) acrylate oligomer,
Multifunctional polyester (methyl) acrylate oligomer and
Multifunctional polyethers (methyl) acrylate oligomer.
3. optical module according to claim 1, said multifunctional (methyl) acrylate oligomer comprises polyfunctional carbamate (methyl) acrylate oligomer.
4. optical module according to claim 1, said viscosity under 25 ℃ are that simple function (methyl) acrylate monomer of about 4 centipoises to about 20 centipoises comprises (methyl) acrylic acid tetrahydro furfuryl ester and (methyl) IBOA.
5. optical module according to claim 4, wherein said (methyl) acrylic acid tetrahydro furfuryl ester comprises oxyalkylated acrylic acid tetrahydro furfuryl ester.
6. according to claim 1 or the described optical module of claim 3, said plastifier comprises oil.
7. according to claim 1 or the described optical module of claim 4, said reaction product also comprises simple function (methyl) acrylate monomer with alkylene oxide functional group.
8. optical module according to claim 1, said adhesive phase comprises:
The reaction product of following material:
About 20 weight % to said multifunctional (methyl) acrylate oligomer of about 60 weight % and
About 30 weight % are to the said reactive diluent of about 60 weight %; With
From greater than 5 weight % to the said plastifier of about 25 weight %.
9. optical module, it comprises:
Display panel;
The substrate of substantial transparent; With
Adhesive phase, said adhesive phase are arranged between the substrate of said display panel and said substantial transparent, and said adhesive phase comprises:
The reaction product of following material:
Multifunctional (methyl) acrylate oligomer and
The viscosity that reactive diluent, said reactive diluent are included under 25 ℃ is simple function (methyl) acrylate monomer of about 4 centipoises to about 20 centipoises and simple function (methyl) acrylate monomer with alkylene oxide functional group.
10. optical module according to claim 9, said multifunctional (methyl) acrylate oligomer comprise any or multiple in the following material:
Polyfunctional carbamate (methyl) acrylate oligomer,
Multifunctional polyester (methyl) acrylate oligomer and
Multifunctional polyethers (methyl) acrylate oligomer.
11. optical module according to claim 9; Said viscosity under 25 ℃ is that simple function (methyl) acrylate monomer of about 4 centipoises to about 20 centipoises comprises (methyl) acrylic acid tetrahydro furfuryl ester and (methyl) IBOA, and said simple function (methyl) acrylate monomer with alkylene oxide functional group has 1 to 10 epoxy alkane unit.
12. optical module according to claim 11, wherein said (methyl) acrylic acid tetrahydro furfuryl ester comprises oxyalkylated acrylic acid tetrahydro furfuryl ester.
13. optical module according to claim 11, said multifunctional (methyl) acrylate oligomer comprises polyfunctional carbamate (methyl) acrylate oligomer.
14. optical module according to claim 9, said adhesive phase comprises:
The reaction product of following material:
About 20 weight % to said multifunctional (methyl) acrylate oligomer of about 60 weight % and
About 40 weight % are to the said reactive diluent of about 80 weight %.
15. an optical module, it comprises:
Display panel;
The substrate of substantial transparent; With
Adhesive phase, said adhesive phase are arranged between the substrate of said display panel and said substantial transparent, and said adhesive phase comprises:
The reaction product of following material:
Polyfunctional rubber base (methyl) acrylate oligomer and
Having carbon number is simple function (methyl) acrylate monomer of 4 to 20 pendent alkyl groups; With
Liquid rubber.
16. optical module according to claim 15, said polyfunctional rubber base (methyl) acrylate oligomer comprise any or multiple in the following material:
Polyfunctional poly butadiene (methyl) acrylate oligomer,
Multifunctional isoprene (methyl) acrylate oligomer and
Multifunctional (methyl) acrylate oligomer, said multifunctional (methyl) acrylate oligomer comprises the multipolymer of butadiene and isoprene.
17. optical module according to claim 15, said polyfunctional rubber base (methyl) acrylate oligomer comprises polyfunctional poly butadiene (methyl) acrylate oligomer.
18. optical module according to claim 15, said pendent alkyl groups comprise 8 to 20 carbon atoms.
19. according to claim 15 or the described optical module of claim 18, said liquid rubber comprises liquid isoprene.
20. according to claim 15 or the described optical module of claim 18, it also comprises plastifier.
21. optical module according to claim 20, said plastifier comprises oil.
22. optical module according to claim 15, said adhesive phase comprises:
The reaction product of following material:
About 20 weight % to said polyfunctional rubber base (methyl) acrylate oligomer of about 60 weight % and
About 20 weight % have simple function (methyl) acrylate monomer that carbon number is 4 to 20 a pendent alkyl groups to about 60 weight % said; With
From greater than 5 weight % to the said liquid rubber of about 25 weight %.
23. according to each the described optical module in claim 1, claim 9 and the claim 15, said adhesive phase is substantially free of tackifier.
24. according to each the described optical module in claim 1, claim 9 and the claim 15, said adhesive phase also comprises silicon dioxide.
25. according to each the described optical module in claim 1, claim 9 and the claim 15, the cleavage strength of said adhesive phase between glass substrate is about 15N/mm or littler.
26. according to each the described optical module in claim 1, claim 9 and the claim 15, the thickness of said adhesive phase is that about 1 μ m is to about 5mm.
27. according to each the described optical module in claim 1, claim 9 and the claim 15, said display panel comprises display panels.
28. according to each the described optical module in claim 1, claim 9 and the claim 15, the substrate of said substantial transparent comprises touch-screen.
29. according to each the described optical module in claim 1, claim 9 and the claim 15, its area that has is about 15cm 2To about 5m 2
30. an optical module, it comprises:
Display panel;
The substrate of substantial transparent; With
Fluid composition, said fluid composition are arranged between the substrate of said display panel and said substantial transparent, and said fluid composition is at 25 ℃ and 1sec -1Under viscosity be about 100 centipoises to about 140,000 centipoises, said fluid composition comprises:
Multifunctional (methyl) acrylate oligomer,
Viscosity under 25 ℃ be about 4 centipoises to simple function (methyl) acrylate monomer of about 20 centipoises and
Plastifier.
31. optical module according to claim 30, the viscosity of wherein said fluid composition is at 25 ℃ and 1sec -1Be down about 100 centipoises to 10,000 centipoise.
32. optical module according to claim 30, said multifunctional (methyl) acrylate oligomer comprise any or multiple in the following material:
Polyfunctional carbamate (methyl) acrylate oligomer,
Multifunctional polyester (methyl) acrylate oligomer and
Multifunctional polyethers (methyl) acrylate oligomer.
33. optical module according to claim 30, said multifunctional (methyl) acrylate oligomer comprises polyfunctional carbamate (methyl) acrylate oligomer.
34. being simple function (methyl) acrylate monomer of about 4 centipoises to about 20 centipoises, optical module according to claim 30, said viscosity under 25 ℃ comprise (methyl) acrylic acid tetrahydro furfuryl ester and (methyl) IBOA.
35. optical module according to claim 34, wherein said (methyl) acrylic acid tetrahydro furfuryl ester comprises oxyalkylated acrylic acid tetrahydro furfuryl ester.
36. according to claim 30 or the described optical module of claim 34, said plastifier comprises oil.
37. according to claim 30 or the described optical module of claim 35, said fluid composition also comprises simple function (methyl) acrylate monomer with alkylene oxide functional group.
38. optical module according to claim 30, said fluid composition comprises:
About 20 weight % are said multifunctional (methyl) acrylate oligomer of about 60 weight % extremely,
About 30 weight % to said simple function (methyl) acrylate monomer of about 60 weight % and
From greater than 5 weight % to the said plastifier of about 25 weight %.
39. an optical module, it comprises:
Display panel;
The substrate of substantial transparent; With
Fluid composition, said fluid composition are arranged between the substrate of said display panel and said substantial transparent, and said fluid composition is at 25 ℃ and 1sec -1Under viscosity be about 100 centipoises to about 140,000 centipoises, said fluid composition comprises:
Multifunctional (methyl) acrylate oligomer,
Viscosity under 25 ℃ be about 4 centipoises to simple function (methyl) acrylate monomer of about 20 centipoises and
Simple function (methyl) acrylate monomer with alkylene oxide functional group.
40. according to the described optical module of claim 39, the viscosity of wherein said fluid composition is at 25 ℃ and 1sec -1Be down about 100 centipoises to 10,000 centipoise.
41. according to the described optical module of claim 39, said multifunctional (methyl) acrylate oligomer comprises any or multiple in the following material:
Polyfunctional carbamate (methyl) acrylate oligomer,
Multifunctional polyester (methyl) acrylate oligomer and
Multifunctional polyethers (methyl) acrylate oligomer.
42. according to the described optical module of claim 40; Said viscosity under 25 ℃ is that simple function (methyl) acrylate monomer of about 4 centipoises to about 20 centipoises comprises (methyl) acrylic acid tetrahydro furfuryl ester and (methyl) IBOA, and said simple function (methyl) acrylate monomer with alkylene oxide functional group has 1 to 10 epoxy alkane unit.
43. according to the described optical module of claim 42, wherein said (methyl) acrylic acid tetrahydro furfuryl ester comprises oxyalkylated acrylic acid tetrahydro furfuryl ester.
44. according to the described optical module of claim 43, said multifunctional (methyl) acrylate oligomer comprises polyfunctional carbamate (methyl) acrylate oligomer.
45. according to the described optical module of claim 40, said fluid composition comprises:
About 20 weight % to said multifunctional (methyl) acrylate oligomer of about 60 weight % and
About 40 weight % are to the said reactive diluent of about 80 weight %.
46. an optical module, it comprises:
Display panel;
The substrate of substantial transparent; With
Fluid composition, said fluid composition are arranged between the substrate of said display panel and said substantial transparent, and said fluid composition is at 25 ℃ and 1sec -1Under viscosity be about 100 centipoises to about 140,000 centipoises, and comprise:
Polyfunctional rubber base (methyl) acrylate oligomer,
Have carbon number and be 4 to 20 pendent alkyl groups simple function (methyl) acrylate monomer and
Liquid rubber.
47. according to the described optical module of claim 46, the viscosity of wherein said fluid composition is at 25 ℃ and 1sec -1Be down about 100 centipoises to 10,000 centipoise.
48. according to the described optical module of claim 46, said polyfunctional rubber base (methyl) acrylate oligomer comprises any or multiple in the following material:
Polyfunctional poly butadiene (methyl) acrylate oligomer,
Multifunctional isoprene (methyl) acrylate oligomer and
Multifunctional (methyl) acrylate oligomer, said multifunctional (methyl) acrylate oligomer comprises the multipolymer of butadiene and isoprene.
49. according to the described optical module of claim 46, said polyfunctional rubber base (methyl) acrylate oligomer comprises polyfunctional poly butadiene (methyl) acrylate oligomer.
50. according to the described optical module of claim 46, said pendent alkyl groups comprises 8 to 20 carbon atoms.
51. according to claim 46 or the described optical module of claim 50, said liquid rubber comprises liquid isoprene.
52. according to claim 46 or the described optical module of claim 50, it also comprises plastifier.
53. according to the described optical module of claim 52, said plastifier comprises oil.
54. according to the described optical module of claim 46, said fluid composition comprises:
About 20 weight % are said polyfunctional rubber base (methyl) acrylate oligomer of about 60 weight % extremely,
About 20 weight % to about 60 weight % said have carbon number be 4 to 20 pendent alkyl groups simple function (methyl) acrylate monomer and
From greater than 5 weight % to the said liquid rubber of about 25 weight %.
55. according to each the described optical module in claim 30, claim 39 and the claim 46, said fluid composition is substantially free of tackifier.
56. according to each the described optical module in claim 30, claim 39 and the claim 46, the thickness of said fluid composition is that about 1 μ m is to about 5mm.
57. according to each the described optical module in claim 30, claim 39 and the claim 46, said display panel comprises display panels.
58. according to each the described optical module in claim 30, claim 39 and the claim 46, the substrate of said substantial transparent comprises touch-screen.
59. according to each the described optical module in claim 30, claim 39 and the claim 46, its area that has is about 15cm 2To about 5m 2
60. a method of making optical module, this method comprises:
Display panel is provided;
The substrate of substantial transparent is provided;
Fluid composition is arranged on one in said display panel and the said substrate, and said fluid composition comprises:
Multifunctional (methyl) acrylate oligomer,
Reactive diluent, said reactive diluent be included in simple function (methyl) acrylate monomer that viscosity under 25 ℃ is about 4 centipoises to about 20 centipoises and
Plastifier;
Another person in said display panel and the said substrate is set on said fluid composition; And
Solidify said fluid composition through applying actinic radiation.
61. a method of making optical module, this method comprises:
Display panel is provided;
The substrate of substantial transparent is provided;
Fluid composition is arranged on one in said display panel and the said substrate, and said fluid composition comprises:
Multifunctional (methyl) acrylate oligomer and
The viscosity that reactive diluent, said reactive diluent are included under 25 ℃ is simple function (methyl) acrylate monomer of about 4 centipoises to about 20 centipoises and simple function (methyl) acrylate monomer with alkylene oxide functional group;
Another person in said display panel and the said substrate is set on said fluid composition; And
Solidify said fluid composition through applying actinic radiation.
62. a method of making optical module, this method comprises:
Display panel is provided;
The substrate of substantial transparent is provided;
Fluid composition is arranged on one in said display panel and the said substrate, and said fluid composition comprises:
Polyfunctional rubber base (methyl) acrylate oligomer,
Have carbon number and be 4 to 20 pendent alkyl groups simple function (methyl) acrylate monomer and
Liquid rubber.
63. a method of making optical module, this method comprises:
Display panel is provided;
The substrate of substantial transparent is provided;
With polymerisable fluid composition be arranged on said display panel and said substrate one on, the viscosity of said polymerisable fluid composition is about 100 centipoises to about 10,000 centipoises;
Another person in said display panel and the said substrate is set on the fluid composition of said polymerisable; And
Through applying the said polymerisable fluid composition of actinic radiation polymerization.
64. according to each the described method in claim 60, claim 61, claim 62 and the claim 63, the area of said optical module is about 15cm 2To about 5m 2
65. a method of dismantling optical module, this method comprises:
Optical module is provided, and said optical module comprises:
Display panel,
The substrate of substantial transparent and
Adhesive phase, said adhesive phase are arranged between said display panel and the said substrate, and the cleavage strength of said adhesive phase between glass substrate is about 15N/mm or littler; And
Said display panel and said substrate is separated from one another.
66. according to the described method of claim 65, the area of said optical module is about 15cm 2To about 5m 2
67. optical devices; It comprises that wherein said optical devices comprise hand-held device, televisor, graphoscope, laptop computer displays or digital direction board according to each the described optical module in claim 1, claim 9, claim 15, claim 30, claim 39 and the claim 46.
68. according to each the described optical module in claim 30, claim 39 and the claim 46, said fluid composition also comprises silicon dioxide.
69. an optically transparent adhesive phase, it comprises:
The optics of liquids clear binder, said optics of liquids clear binder is at 1sec -1Shear rate under viscosity be less than about 20Pas; With
Thixotrope;
The mist degree of wherein said optically transparent adhesive phase is about 2% or littler;
Wherein said optically transparent adhesive phase is at 10sec -1Shear rate under viscosity between about 2Pas and about 30Pas, and at 0.01sec -1Shear rate under viscosity at about 700Pas and about 10, between the 000Pas;
Wherein when the stress that applies 10Pa in the time of about 2 minutes, the displacement creep of said optically transparent adhesive phase is about 0.2 radian or littler; And
Wherein about 60 seconds of the moment of torsion that applies 1000 μ Nm under the 1Hz frequency and after and then applying the moment of torsion of 80 μ Nm under the frequency at 1Hz, be about 60 seconds or shorter the release time that said optically transparent adhesive phase reaches 35 degree δ.
70. according to the described optically transparent adhesive phase of claim 69, when wherein under the frequency of 1Hz, applying the moment of torsion of 80 μ Nm, the δ of said optically transparent adhesive phase is about 42 degree.
71. according to the described optically transparent adhesive phase of claim 69, wherein said optically transparent adhesive phase is at 10sec -1Shear rate under viscosity between about 5Pas and about 20Pas, at 0.01sec -10Shear rate under viscosity about 1,000Pas and about 8 is between the 000Pas.
72. according to the described optically transparent adhesive phase of claim 69, wherein said optically transparent adhesive phase is at 1sec -1Shear rate under viscosity between about 17Pas and about 140Pas.
73. according to the described optically transparent adhesive phase of claim 69, wherein when the stress that applies 10Pa in the time of about 2 minutes, the displacement creep of said optically transparent adhesive phase is about 0.1 radian or littler.
74. according to the described optically transparent adhesive phase of claim 69, wherein said optically transparent liquid adhesive is at 1sec -1Shear rate under viscosity be about 10Pas.
75. according to the described optically transparent adhesive phase of claim 69; Wherein about 60 seconds of the moment of torsion that applies about 1000 μ Nm under the frequency of 1Hz and after and then applying the moment of torsion of 80 μ Nm under the frequency at 1Hz, be about 30 seconds or shorter the release time that said optically transparent adhesive phase reaches 35 degree δ.
76. according to the described optically transparent adhesive phase of claim 69; Wherein about 60 seconds of the moment of torsion that applies about 1000 μ Nm under the frequency of 1Hz and after and then applying the moment of torsion of 80 μ Nm under the frequency at 1Hz, be about 10 seconds or shorter the release time that said optically transparent adhesive phase reaches 35 degree δ.
77. according to the described optically transparent adhesive phase of claim 69, wherein said thixotrope is selected from: pyrogenic silica, pyrolysismethod aluminium oxide, polyhydroxycarboxyliacid acid acid amides, polyhydroxycarboxyliacid acid ester, modified urea, metal sulfonate, acroleic acid esterification oligomeric amine, polyacrylic acid and modified amido formic ether.
CN2011800017420A 2009-03-27 2011-03-24 Optical assembly having a display panel and methods of making and disassembling same Pending CN102388324A (en)

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USPCT/US2010/028382 2010-03-24
USPCT/US2010/047016 2010-08-27
PCT/US2010/047016 WO2011119180A1 (en) 2010-03-24 2010-08-27 Optical assembly having a display panel and methods of making and disassembling same
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