CN112693210A - Method for manufacturing panel module - Google Patents
Method for manufacturing panel module Download PDFInfo
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- CN112693210A CN112693210A CN202011597787.6A CN202011597787A CN112693210A CN 112693210 A CN112693210 A CN 112693210A CN 202011597787 A CN202011597787 A CN 202011597787A CN 112693210 A CN112693210 A CN 112693210A
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- substrate
- liquid glue
- coated
- base material
- glue
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims description 37
- 239000000758 substrate Substances 0.000 claims abstract description 150
- 239000003292 glue Substances 0.000 claims abstract description 143
- 239000007788 liquid Substances 0.000 claims abstract description 130
- 239000000463 material Substances 0.000 claims abstract description 91
- 239000000853 adhesive Substances 0.000 claims abstract description 36
- 230000001070 adhesive effect Effects 0.000 claims abstract description 36
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 33
- 238000005286 illumination Methods 0.000 claims abstract description 28
- 238000000576 coating method Methods 0.000 claims abstract description 16
- 238000004140 cleaning Methods 0.000 claims abstract description 13
- 239000011248 coating agent Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- -1 polyethylene terephthalate Polymers 0.000 claims description 11
- 238000009832 plasma treatment Methods 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 claims description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 8
- 229920000089 Cyclic olefin copolymer Polymers 0.000 claims description 6
- 239000004713 Cyclic olefin copolymer Substances 0.000 claims description 6
- 239000004417 polycarbonate Substances 0.000 claims description 5
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 5
- 229920000515 polycarbonate Polymers 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 3
- 239000002861 polymer material Substances 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 2
- 239000011541 reaction mixture Substances 0.000 claims description 2
- 239000003522 acrylic cement Substances 0.000 claims 1
- 229920006332 epoxy adhesive Polymers 0.000 claims 1
- 150000002978 peroxides Chemical class 0.000 description 11
- 230000007613 environmental effect Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 239000004568 cement Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 230000001788 irregular Effects 0.000 description 4
- 238000003475 lamination Methods 0.000 description 3
- 239000002957 persistent organic pollutant Substances 0.000 description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006335 epoxy glue Polymers 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/308—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising acrylic (co)polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
- B32B27/325—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polycycloolefins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
- B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0008—Electrical discharge treatment, e.g. corona, plasma treatment; wave energy or particle radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/12—Chemical modification
- C08J7/123—Treatment by wave energy or particle radiation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/12—Chemical modification
- C08J7/16—Chemical modification with polymerisable compounds
- C08J7/18—Chemical modification with polymerisable compounds using wave energy or particle radiation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2333/00—Characterised by the use of homopolymers or 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 of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/04—Characterised by the use of homopolymers or 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 of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
- C08J2333/06—Characterised by the use of homopolymers or 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 of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C08J2333/10—Homopolymers or copolymers of methacrylic acid esters
- C08J2333/12—Homopolymers or copolymers of methyl methacrylate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2345/00—Characterised by the use of homopolymers or copolymers of compounds having no unsaturated aliphatic radicals in side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic or in a heterocyclic ring system; Derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- General Chemical & Material Sciences (AREA)
- Toxicology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Thermal Sciences (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Abstract
The invention relates to a manufacturing method of a panel module. The manufacturing method of the panel module comprises the following steps: carrying out plasma cleaning treatment on a first substrate, wherein the first substrate is an organic substrate; distributing an organic reagent on the first substrate after the plasma cleaning treatment, and simultaneously carrying out illumination treatment with the wavelength of 100-500 nm on the region to be coated with the liquid glue on the first substrate, wherein the structure of the organic reagent contains double bonds and hydrophilic groups; coating liquid glue on the area to be coated with the liquid glue on the first substrate; and attaching a second substrate to the liquid glue to manufacture the panel module. The manufacturing method of the panel module can reduce glue overflow, improve the adhesive force between the liquid glue and the first base material, and avoid the peeling phenomenon of the liquid glue and the first base material due to small adhesive force.
Description
Technical Field
The invention relates to the field of liquid glue, in particular to a manufacturing method of a panel module.
Background
In the full-lamination process, regardless of the panel module or the touch module, liquid glue is often used to laminate a curved surface, but the current technical means restricts the application of the liquid glue because it is difficult to effectively control the flow of the liquid glue. However, one of the conventional methods for attaching liquid adhesives is to use a Bump (Bump) method, which can attach the adhesive under the atmosphere and has no problem of incapability of discharging bubbles because the height of the adhesive is lower than that of the liquid adhesive. However, in the current liquid glue coating, if the protrusion is used as the enclosing wall, the liquid glue is easy to overflow due to the capillary phenomenon flowing to the fastening part because of the shape relationship of the substrate fastening part. In addition, when the substrate is made of a hydrophobic material, the surface energy of the substrate is small, and the peeling strength of the substrate cannot be greatly enhanced only by plasma treatment, so that the adhesive force between the liquid optical cement and the substrate is small, and the peeling phenomenon is easy to generate after an environmental test.
Disclosure of Invention
Accordingly, there is a need for a method for manufacturing a panel module that can improve the adhesion between the liquid glue and the substrate while reducing the glue overflow.
A method for manufacturing a panel module is characterized by comprising the following steps:
carrying out plasma cleaning treatment on a first substrate, wherein the first substrate is an organic substrate;
distributing an organic reagent on the first substrate after the plasma cleaning treatment, and simultaneously carrying out illumination treatment with the wavelength of 100-500 nm on the region to be coated with the liquid glue on the first substrate, wherein the structure of the organic reagent contains double bonds and hydrophilic groups; and
coating liquid glue on the area to be coated with the liquid glue on the first substrate;
and attaching a second substrate to the liquid glue to manufacture the panel module.
In one embodiment, the material of the first substrate and the material of the second substrate are each independently selected from one of acryl, polyethylene terephthalate, polycarbonate, and cyclic olefin copolymer; and/or the presence of a catalyst in the reaction mixture,
the first base material and the second base material are planar base materials, or the first base material and the second base material are both provided with curved surfaces.
In one embodiment, the liquid glue is selected from one of water glue, liquid optical glue, water-based acrylic glue and water-based epoxy glue.
In one embodiment, after the step of performing the light treatment with the wavelength of 100nm to 500nm on the area to be coated with the liquid glue on the first substrate, the first substrate is to be coatedThe grafting amount of the domains of the liquid gum was 10. mu.g/cm2～500μg/cm2The water contact angle is 5-60 degrees, and the surface energy is more than 70 Dyne.
In one embodiment, in the step of performing light treatment with a wavelength of 100nm to 500nm on the region to be coated with the liquid glue on the first substrate, a photomask plate is disposed between light and the first substrate, the photomask plate is provided with a light shielding region and a transparent region, and the transparent region corresponds to the region to be coated with the liquid glue on the first substrate.
In one embodiment, the transparent area has a pattern, and in the step of coating the liquid glue on the area to be coated with the liquid glue on the first substrate, the liquid glue is coated according to the pattern so as to coat the liquid glue with the pattern on the first substrate.
In one embodiment, the surface energy of the areas coated with the liquid glue and the areas not coated with the liquid glue on the first substrate are different.
In one embodiment, the material of the light shielding region is a polymer material or a metal material.
In one embodiment, in the step of coating the first substrate with the organic reagent after the plasma treatment, the first substrate is immersed in a solution containing the organic reagent.
In one embodiment, the frequency is 5 kHz-50 kHz, the voltage is 1 kV-50 kV, and the plasma treatment time is 1 s-3600 s during the plasma cleaning treatment of the first substrate.
The manufacturing method of the panel module comprises the steps of firstly carrying out plasma treatment on a first substrate to remove organic pollutants on the surface of the first substrate, meanwhile, because the C-H bond of the first substrate is broken by the high energy of the plasma, oxygen ions are in key joint with the first substrate to form peroxide, then distributing organic reagents on the first substrate, and carrying out illumination treatment with the wavelength of 100 nm-500 nm, under the illumination effect of the wavelength, double bonds in the organic reagents are broken, and the double bonds are in key joint with the peroxide on the first substrate to graft hydrophilic groups of the organic reagents on the first substrate, so that the surface energy of the first substrate is improved, the adhesive force between liquid glue and the first substrate is further improved, and the problem that the liquid glue is not enough in adhesive force after environmental test to cause stripping is solved. In addition, the area of the first substrate needing to be coated with the liquid glue is subjected to illumination treatment, and other areas are not subjected to illumination treatment, so that the surface energy of different areas of the first substrate is different, the surface energy of the area subjected to illumination treatment is large, the adhesive force between the first substrate and the liquid glue is large, and the liquid glue is not easy to flow to the area with low surface energy, so that glue overflow is avoided. Therefore, the manufacturing method of the panel module can reduce glue overflow, improve the adhesive force between the liquid glue and the first base material, and avoid the peeling phenomenon of the liquid glue and the first base material due to small adhesive force.
Drawings
FIG. 1 is a process flow diagram of a method for fabricating a panel module according to an embodiment;
FIG. 2 is a schematic view of steps S110 to S120 in the process flow chart of the method for manufacturing the panel module shown in FIG. 1;
FIG. 3 is a schematic representation of the water contact angle of a first substrate before and after grafting treatment;
FIG. 4 is a schematic diagram illustrating the control of the liquid glue pattern by the pattern of the photomask;
FIG. 5 is a schematic diagram illustrating a conventional liquid glue overflowing phenomenon;
FIG. 6 is a 3D-Xray diagram of a cross-section of a conventional liquid glue and substrate;
fig. 7 is a OM diagram illustrating the insufficient adhesion between the conventional liquid glue and the substrate.
Detailed Description
In order that the invention may be more fully understood, reference will now be made to the following description taken in conjunction with the accompanying drawings. The detailed description sets forth the preferred embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1, a method for manufacturing a panel module according to an embodiment includes the following steps:
step S110: the first substrate is subjected to a plasma cleaning process.
Wherein the first substrate is an organic substrate. Specifically, the material of the first substrate is selected from one of PET (polyethylene terephthalate), acryl, PC (polycarbonate) and COC (cyclic olefin copolymer).
In one embodiment, the first substrate is a planar substrate. In another embodiment, the first substrate has a curved surface. The method for manufacturing the panel module can realize curved surface lamination.
Further, the first base material may be a substrate. For example, the substrate may be a curved substrate, a flat substrate, an irregular substrate, or the like. When the first base material is a curved base plate or an irregular base plate, the curved base plate can not generate the glue overflow phenomenon when being coated with the liquid glue through the subsequent step treatment, so that the application range of the base material is expanded.
Specifically, in the process of carrying out plasma cleaning treatment on the first base material, the frequency is 5 kHz-50 kHz, the voltage is 1 kV-50 kV, and the plasma treatment time is 1 s-3600 s. Further, the plasma cleaning process is performed in an atmospheric state during the first substrate. Specifically, the process parameters during the plasma treatment process may be adjusted according to the material and properties of the first substrate.
By subjecting the first substrate to a plasma cleaning treatment, organic contaminants on the surface of the first substrate can be removed, and at the same time, the high energy of the plasma breaks the C-H bonds of the first substrate, so that oxygen ions are bonded to the first substrate to form peroxides.
Step S120: and (3) distributing an organic reagent on the first base material after the plasma cleaning treatment, and simultaneously carrying out illumination treatment with the wavelength of 100-500 nm on the area to be coated with the liquid glue on the first base material.
Wherein, the structure of the organic reagent contains double bonds and hydrophilic groups. The double bond in the organic reagent can be bonded with peroxide generated on the first substrate under the condition of illumination treatment with the wavelength of 100 nm-500 nm, so that the hydrophilic group is grafted on the first substrate, and the hydrophilicity of the first substrate is improved.
In one embodiment, the organic reagent is acrylic acid. It is understood that the organic reagent is not limited to acrylic acid, but may be other reagents containing both a double bond and a hydrophilic group, such as methacrylic acid, crotonic acid, and the like.
Because the high energy of the plasma breaks the C-H bond of the first base material, oxygen ions are in key joint with the first base material to form peroxide, then the first base material is soaked in the organic reagent and is subjected to illumination treatment with the wavelength of 100 nm-500 nm, and under the illumination with the wavelength of 100 nm-500 nm, the double bonds in the organic reagent are in key joint with the peroxide, so that the organic reagent is grafted on the first base material, the surface energy of the first base material is improved, the adhesive force between the liquid glue and the first base material is further improved, and the problem that the liquid glue is not enough in adhesive force with the first base material after environmental test and is easy to peel off is solved.
Specifically, taking acrylic acid as an example, the principle of grafting the organic agent onto the first substrate under the condition of light treatment is specifically as follows, wherein R represents an alkyl chain:
in addition, the area of the first base material, which needs to be coated with the liquid glue, is subjected to illumination treatment with the wavelength of 100 nm-500 nm, and other areas are not subjected to illumination treatment with the wavelength of 100 nm-500 nm, so that the surface energy of different areas of the first base material is different, the surface energy of the area subjected to illumination treatment with the wavelength of 100 nm-500 nm is large, the adhesive force between the first base material and the liquid glue is large, and the liquidity of the liquid glue is poor; the area which is not subjected to the illumination treatment with the wavelength of 100 nm-500 nm has small adhesive force between the first base material and the liquid glue and good liquidity of the liquid glue, so that the liquid glue is not easy to flow from the area with high surface energy to the area with low surface energy to avoid glue overflow due to the difference of the surface energy of different areas on the first base material. Therefore, the manufacturing method of the panel module can not only improve the adhesive force between the liquid glue and the base material, avoid the peeling phenomenon between the liquid glue and the base material due to small adhesive force, but also reduce glue overflow.
In one embodiment, in the step of coating the first substrate with the organic reagent after the plasma treatment, the first substrate is immersed in a solution containing the organic reagent.
Specifically, in the step of the illumination treatment with the wavelength of 100nm to 500nm, the power of the illumination treatment is 10mW to 4000mW, and the time of the ultraviolet illumination treatment is 1min to 480 min. In the actual process, the process parameters such as wavelength, power and time in the light treatment process can be adjusted according to the properties of the base material and the properties of the liquid glue to be coated.
After the treatment of step S120, the graft amount of the first substrate was 10. mu.g/cm2～500μg/cm2The water contact angle of the first base material is 5-60 degrees, and the surface energy is more than 70 Dyne.
Specifically, the properties such as grafting amount, water contact angle and surface energy of the first base material can be adjusted according to the wavelength, power, illumination time and the like in the illumination treatment process, so that the adhesive force between the first base material and the liquid glue is adjusted, and the adhesive force between the first base material with different materials and the liquid glue meets the requirements.
Specifically, for the same substrate, the larger the grafting amount of the first substrate is, the smaller the water contact angle of the first substrate is, the larger the surface energy is, and the larger the adhesion between the first substrate and the liquid glue is.
Specifically, referring to fig. 2, a flow chart of steps S110 to S120 is shown, in which the C-H bond of the first substrate 210 is broken and oxygen ions are bonded to the first substrate 210 to form peroxide under the treatment of the plasma 220. Then, the first substrate 210 is soaked in the organic reagent 230, and simultaneously, the illumination treatment with the wavelength of 100 nm-500 nm is carried out, under the irradiation of light 240 with the wavelength of 100 nm-500 nm, double bonds in the structure of the organic reagent 230 are bonded with peroxide on the first substrate 210, and hydrophilic groups in the structure of the organic reagent 230 are grafted on the first substrate 210, so that the hydrophilicity and the surface energy of the first substrate 210 are improved, and the adhesive force between the first substrate 210 and liquid glue is further improved.
In one embodiment, in the step of performing light irradiation processing with a wavelength of 100nm to 500nm on the region to be coated with the liquid glue on the first substrate, a photomask plate is disposed between the light and the first substrate, the photomask plate is provided with a light shielding region and a transparent region, and the transparent region corresponds to the region to be coated with the liquid glue of the first substrate.
The shading area can shade ultraviolet light, and the position of the shading area corresponding to the first base material is not subjected to illumination treatment with the wavelength of 100 nm-500 nm, so that the position of the first base material is not grafted with hydrophilic groups of organic reagents, the surface energy is low, and the adhesive force between the liquid glue and the first base material is small. And the position of the first base material corresponding to the transparent area is subjected to illumination treatment with the wavelength of 100 nm-500 nm, so that a certain amount of hydrophilic groups are grafted on the position of the first base material, the surface energy is high, and the adhesive force between the liquid glue and the first base material is large. The surface energy of different areas on the first substrate is made to have difference through the light irradiation treatment. When the liquid glue is coated at the position of the first base material corresponding to the transparent area, the liquid glue is not easy to flow under the strong adhesive force of the first base material because the adhesive force between the liquid glue and the first base material is large. And the position of the first substrate corresponding to the shading area has low surface energy, and the liquid glue cannot flow from the area with high surface energy to the area with low surface energy due to the difference of the surface energy of different areas on the first substrate, so that the glue overflow phenomenon is avoided.
Specifically, referring to fig. 3, taking the first substrate 210 as a cyclic olefin copolymer substrate as an example, when the first substrate 210 is not grafted with a hydrophilic group, the water contact angle of the first substrate 210 is larger, as shown in the left side of fig. 3; after the first base material 210 is grafted with the hydrophilic functional group through the light irradiation treatment, the water contact angle of the first base material 210 is reduced, as shown in the right side of fig. 3, the surface energy is increased from 30Dyne to more than 80Dyne, the adhesion between the glue material and the first base material is further improved by the increase of the surface energy, the problem that the adhesion is insufficient after the environmental test of the Liquid Optical Cement (LOCA) or the Optical Cement (OCA) and peeling occurs is solved, and the selection of the first base material can be more free.
Specifically, the material of the light-shielding region of the photomask plate is a polymer material or a metal material. The shape of the photomask plate can be designed into different shapes according to different requirements.
In one embodiment, the transparent area has a pattern, and in the step of coating the liquid glue on the area to be coated on the first substrate, the liquid glue is coated according to the pattern to coat the liquid glue with the pattern on the first substrate. In particular, the pattern of transparent areas may be designed according to the pattern of the liquid glue that is intended to be applied on the first substrate.
Specifically, the surface energy of the area coated with the liquid glue on the first substrate is different from that of the area not coated with the liquid glue.
For example, referring to fig. 4, the transparent region of the mask plate 250 is a "GIS" pattern, for example, as the left portion of fig. 4, the mask plate 250 is disposed between the light 240 with a wavelength of 100nm to 500nm and the first substrate 210, part of the first substrate 210 is exposed to light under the shielding of the mask plate 250, and part of the first substrate 210 is not exposed to light, so that regions with different surface energies are generated, hydrophilic groups are grafted on the positions of the first substrate 210 corresponding to the transparent region of the mask plate 250 to increase the surface energy, and hydrophilic groups are not grafted on the positions of the first substrate corresponding to the shielding region of the mask plate 250 to lower the surface energy. After the liquid glue 260 is coated on the first substrate 210, the liquid glue 260 in the region with high surface energy does not flow to the region with low surface energy due to the difference of surface energy, so that the pattern of the liquid glue 260 is also a pattern of a "GIS", as shown in the right part of fig. 4, which is the same as the pattern of the transparent region of the photomask plate 250. Therefore, the pattern of the liquid glue 260 on the first substrate 210 can be controlled by adjusting the pattern of the transparent region of the mask plate 250, so that the pattern of the liquid glue 260 can be controlled. It is understood that the pattern of the transparent region of the photomask plate 250 is not limited to the pattern in fig. 4, and different patterns may be designed according to the requirement of the user on the liquid glue 260, or different patterns may be designed according to different application occasions of the liquid glue 260.
By soaking the first base material with the organic reagent and performing illumination treatment with the wavelength of 100 nm-500 nm, the adhesive force between the first base material and the liquid glue is improved, so that the liquid glue can be applied to the first base materials made of different materials, and the application range of the first base material is expanded.
Step S130: and coating the liquid glue on the area to be coated on the first substrate.
Specifically, the coating method may be dispensing. It is understood that the manner of applying the liquid glue may be a manner commonly used in the art, and will not be described herein.
Specifically, the liquid glue is selected from one of water glue, liquid optical glue, water-based acrylic glue and water-based epoxy resin glue.
The liquid glue can be attached to the curved surface and the complex molded surface structure, so that the liquid glue is widely applied to the full-attaching process. However, the conventional method cannot effectively control the flow of the liquid glue, and thus the application of the liquid glue is limited. In the embodiment, the first substrate is pretreated, so that the surface energy of the area to be coated with the liquid glue of the first substrate is different from the surface energy of other areas, the surface energy of the area to be coated with the liquid glue is larger, the adhesive force between the area to be coated with the liquid glue and the liquid glue is increased, the liquidity of the liquid glue is reduced, the liquid glue is difficult to flow from the area with large surface energy to the area with small surface energy, and the glue overflow phenomenon is avoided. Meanwhile, the glue overflow phenomenon can not occur to the first substrate with the curved surface or the complex profile, and the application of the liquid glue in the curved surface or the complex profile is guaranteed.
Step S140: and attaching a second substrate to the liquid glue to manufacture the panel module.
Specifically, the material of the second substrate is selected from one of acrylic, polyethylene terephthalate, polycarbonate and cyclic olefin copolymer.
In one embodiment, the second substrate is a planar substrate. In another embodiment, the second substrate has a curved surface. The method for manufacturing the panel module can realize curved surface lamination.
Further, the second base material may be a substrate. The substrate is a curved substrate, a planar substrate, an irregular substrate, or the like. When the second base material is a curved substrate or an irregular substrate, the curved substrate can be coated with liquid glue without glue overflow through subsequent steps.
Further, the shape of the second substrate is the same as the shape of the first substrate.
It is understood that the second substrate and the first substrate may be made of the same material or different materials.
Referring to fig. 5, in the coating process of the conventional liquid glue 260, the protrusion is used as a wall, and the glue overflow phenomenon is easily generated when the liquid glue 260 flows to the fastener due to the capillary phenomenon in the fastener portion of the first substrate 210 and the second substrate 220 due to the shape relationship.
In addition, referring to fig. 6 and 7, for the substrate made of hydrophobic material, the adhesion between the substrate and the liquid optical cement is small, so the liquid optical cement is easy to separate after the environmental test.
The manufacturing method of the panel module of the embodiment solves the problems of glue overflow and insufficient adhesive force in the traditional liquid optical glue coating process, and has at least the following advantages:
(1) according to the manufacturing method of the panel module, the first base material is subjected to plasma treatment to remove organic pollutants on the surface of the first base material, meanwhile, due to the fact that the C-H bond of the first base material is broken by the high energy of the plasma, oxygen ions and the first base material are in key joint to form peroxide, then the first base material is soaked in the organic reagent, illumination treatment with the wavelength of 100 nm-500 nm is conducted, under the illumination with the wavelength of 100 nm-500 nm, the double bonds in the organic reagent and the peroxide on the first base material are in key joint, so that hydrophilic groups of the organic reagent are grafted on the first base material, the surface energy of the first base material is improved, the adhesive force between the liquid glue and the first base material is further improved, and the problem that the liquid glue is not enough in adhesive force after environmental test to cause stripping is solved. In addition, the light irradiation treatment with the wavelength of 100 nm-500 nm is carried out on the area of the first base material, which needs to be subjected to glue dispensing, while the light irradiation treatment with the wavelength of 100 nm-500 nm is not carried out on other areas, so that the surface energy of different areas of the first base material is different, the surface energy of the area subjected to the light irradiation treatment with the wavelength of 100 nm-500 nm is large, the adhesive force between the first base material and the liquid glue is large, and the surface energy of the area not subjected to the light irradiation treatment with the wavelength of 100 nm-500 nm is small, so that the liquid glue is not easy to flow to the area with low surface energy, and glue overflow is avoided. Therefore, the manufacturing method of the panel module can reduce glue overflow, improve the adhesive force between the liquid glue and the first base material, and avoid the peeling phenomenon of the liquid glue and the first base material due to small adhesive force.
(2) The manufacturing method of the panel module can also adjust the shape of the photomask plate, the pattern of the transparent area and the like, coat liquid glue with different patterns and shapes on the first base material, control the pattern and the shape of the liquid glue and meet different requirements.
(3) The manufacturing method of the panel module can also adjust parameters such as time, power and wavelength of illumination treatment with the wavelength of 100 nm-500 nm, so that the surface energy of the first base material is improved, the first base material with slightly poor hydrophobicity can be used for manufacturing the panel module after treatment, and the application range of the first base material is expanded.
(4) The manufacturing method of the panel module utilizes the existing plasma processing process, removes organic pollutants, simultaneously breaks C-H to generate peroxide on the first substrate, and further carries out the steps of soaking organic reagents and lighting treatment with the wavelength of 100 nm-500 nm, the process is simple, and the existing process is skillfully utilized.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method for manufacturing a panel module is characterized by comprising the following steps:
carrying out plasma cleaning treatment on a first substrate, wherein the first substrate is an organic substrate;
distributing an organic reagent on the first substrate after the plasma cleaning treatment, and simultaneously carrying out illumination treatment with the wavelength of 100-500 nm on the region to be coated with the liquid glue on the first substrate, wherein the structure of the organic reagent contains double bonds and hydrophilic groups; and
coating liquid glue on the area to be coated with the liquid glue on the first substrate;
and attaching a second substrate to the liquid glue to manufacture the panel module.
2. The method of claim 1, wherein the first substrate and the second substrate are made of one material selected from the group consisting of acrylic, polyethylene terephthalate, polycarbonate, and cyclic olefin copolymer; and/or the presence of a catalyst in the reaction mixture,
the first base material and the second base material are planar base materials, or the first base material and the second base material are curved surfaces.
3. The method of claim 1, wherein the liquid adhesive is selected from one of water adhesive, liquid optical adhesive, water acrylic adhesive and water epoxy adhesive.
4. The method of claim 1, wherein the first substrate is coated with a coating solutionAfter the step of performing light treatment with the wavelength of 100 nm-500 nm on the area of the liquid glue, the grafting amount of the area of the first substrate to be coated with the liquid glue is 10 mu g/cm2～500μg/cm2The water contact angle is 5-60 degrees, and the surface energy is more than 70 Dyne.
5. The method for manufacturing the panel module according to any one of claims 1 to 4, wherein in the step of performing light irradiation treatment with a wavelength of 100nm to 500nm on the region to be coated with the liquid glue on the first substrate, a photomask plate is disposed between light and the first substrate, the photomask plate is provided with a light shielding region and a transparent region, and the transparent region corresponds to the region to be coated with the liquid glue on the first substrate.
6. The method as claimed in claim 5, wherein the transparent region has a pattern, and the step of coating the liquid glue on the region of the first substrate to be coated with the liquid glue comprises coating the liquid glue according to the pattern to coat the liquid glue on the first substrate with the pattern.
7. The method as claimed in claim 6, wherein the surface energy of the area coated with the liquid glue is different from the surface energy of the area not coated with the liquid glue.
8. The method as claimed in claim 5, wherein the light-shielding region is made of a polymer material or a metal material.
9. The method for manufacturing a panel module according to any one of claims 1 to 4 and 6 to 8, wherein in the step of coating the organic reagent on the first substrate after the plasma treatment, the first substrate is immersed in a solution containing the organic reagent.
10. The method for manufacturing a panel module according to any one of claims 1 to 4 and 6 to 8, wherein the frequency is 5kHz to 50kHz, the voltage is 1kV to 50kV, and the plasma treatment time is 1s to 3600s in the process of performing the plasma cleaning treatment on the first substrate.
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Cited By (1)
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| CN113777815A (en) * | 2021-09-07 | 2021-12-10 | 深圳市祥晖光电有限公司 | High-precision rapid laminating process for intelligent terminal lens |
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Effective date of registration: 20240112 Address after: 518109, Building E4, 101, Foxconn Industrial Park, No. 2 East Ring 2nd Road, Fukang Community, Longhua Street, Longhua District, Shenzhen City, Guangdong Province (formerly Building 1, 1st Floor, G2 District), H3, H1, and H7 factories in K2 District, North Shenchao Optoelectronic Technology Park, Minqing Road, Guangdong Province Patentee after: INTERFACE OPTOELECTRONICS (SHENZHEN) Co.,Ltd. Patentee after: Interface Technology (Chengdu) Co., Ltd. Patentee after: GENERAL INTERFACE SOLUTION Ltd. Address before: No.689 Hezuo Road, West District, high tech Zone, Chengdu City, Sichuan Province Patentee before: Interface Technology (Chengdu) Co., Ltd. Patentee before: INTERFACE OPTOELECTRONICS (SHENZHEN) Co.,Ltd. Patentee before: Yicheng Photoelectric (Wuxi) Co.,Ltd. Patentee before: GENERAL INTERFACE SOLUTION Ltd. |