CN116515406A - Display screen bonding method - Google Patents
Display screen bonding method Download PDFInfo
- Publication number
- CN116515406A CN116515406A CN202210076882.4A CN202210076882A CN116515406A CN 116515406 A CN116515406 A CN 116515406A CN 202210076882 A CN202210076882 A CN 202210076882A CN 116515406 A CN116515406 A CN 116515406A
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- China
- Prior art keywords
- bonded
- bonding
- display screen
- adhesive
- percent
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000000853 adhesive Substances 0.000 claims abstract description 55
- 230000001070 adhesive effect Effects 0.000 claims abstract description 55
- 238000004140 cleaning Methods 0.000 claims abstract description 24
- 239000011248 coating agent Substances 0.000 claims abstract description 18
- 238000000576 coating method Methods 0.000 claims abstract description 18
- 238000005304 joining Methods 0.000 claims abstract description 3
- 238000001723 curing Methods 0.000 claims description 39
- 238000010438 heat treatment Methods 0.000 claims description 20
- 239000003054 catalyst Substances 0.000 claims description 17
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 14
- 239000007822 coupling agent Substances 0.000 claims description 13
- HBGGXOJOCNVPFY-UHFFFAOYSA-N diisononyl phthalate Chemical compound CC(C)CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC(C)C HBGGXOJOCNVPFY-UHFFFAOYSA-N 0.000 claims description 9
- 238000013007 heat curing Methods 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 238000005286 illumination Methods 0.000 claims description 8
- 239000004814 polyurethane Substances 0.000 claims description 8
- 229920002635 polyurethane Polymers 0.000 claims description 7
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 6
- 230000008439 repair process Effects 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 description 6
- 239000004831 Hot glue Substances 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
Classifications
-
- 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
- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
- C09J5/02—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving pretreatment of the surfaces to be joined
-
- 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
- C09J2475/00—Presence of polyurethane
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a bonding method of a display screen, which comprises the following steps: providing a display screen to be bonded, a bonding carrier and an adhesive; cleaning the first surface to be bonded of the display screen and the second surface to be bonded of the bonding carrier; coating the adhesive on the cleaned first surface to be bonded and the cleaned second surface to be bonded; joining the coated first surface to be bonded and the second surface to be bonded together; the first surface to be bonded and the second surface to be bonded which are bonded together are subjected to a curing treatment. By adopting the technical scheme of the invention, the display screen and the bonding carrier can be bonded, so that the bonding effect is good, the cost is low, and the bonding carrier is easy to remove during repair.
Description
Technical Field
The invention relates to the technical field of display screens, in particular to a bonding method of a display screen.
Background
In the prior art, the fixing method of the liquid crystal display screen and the frame mostly adopts double-sided pressure-sensitive adhesive tapes or hot melt adhesives, and can play a good role in adhesion and vibration resistance. However, the two adhesive products have advantages and disadvantages, wherein the double-sided pressure-sensitive adhesive tape can design cutting patterns according to the screen contour of the liquid crystal display screen, has easily controlled shape and contour, has excellent anti-seismic performance and has higher cost; the hot melt adhesive has low price, but the adhesive force to a narrower frame is also small, the performance requirement cannot be met, and when the attached defective products are reworked, the problem that the hot melt adhesive is difficult to remove from the liquid crystal display screen often occurs, so that the reworking is difficult.
Disclosure of Invention
The technical problem to be solved by the embodiment of the invention is to provide the bonding method of the display screen, which can realize bonding between the display screen and the bonding carrier, has good bonding effect, has low cost and is easy to remove during repair.
In order to solve the above technical problems, an embodiment of the present invention provides a method for bonding a display screen, including:
providing a display screen to be bonded, a bonding carrier and an adhesive;
cleaning the first surface to be bonded of the display screen and the second surface to be bonded of the bonding carrier;
coating the adhesive on the cleaned first surface to be bonded and the cleaned second surface to be bonded;
joining the coated first surface to be bonded and the second surface to be bonded together;
the first surface to be bonded and the second surface to be bonded which are bonded together are subjected to a curing treatment.
Further, the adhesive comprises the following components in percentage by weight: 35 to 70 percent of polyurethane, 10 to 15 percent of diisononyl phthalate, 15 to 20 percent of carbon, 5 to 10 percent of calcium carbonate, 2 to 5 percent of coupling agent, 0.05 to 0.25 percent of catalyst and 5 percent of UV photoinitiator, wherein the total amount is 100 percent.
Further, the coupling agent is a silane coupling agent.
Further, the catalyst is a metal catalyst.
Further, the cleaning treatment for the first surface to be bonded of the display screen and the second surface to be bonded of the bonding carrier specifically includes:
and cleaning the first surface to be bonded of the display screen and the second surface to be bonded of the bonding carrier by using ethanol.
Further, the curing treatment is performed on the first surface to be bonded and the second surface to be bonded, which are bonded together, specifically including:
carrying out light curing treatment on the first surface to be bonded and the second surface to be bonded which are bonded together;
and carrying out heat curing treatment on the first surface to be bonded and the second surface to be bonded after the light curing.
Further, the intensity of the light used in the light curing is 550-600 mW/cm 2 The illumination time is 5s.
Further, the heating temperature during heating and curing is 120 ℃, and the heating time is 50-60 min.
Compared with the prior art, the embodiment of the invention provides a display screen bonding method, which comprises the steps of firstly providing a display screen to be bonded, a bonding carrier and an adhesive, and cleaning a first surface to be bonded of the display screen and a second surface to be bonded of the bonding carrier; then, coating the adhesive on the cleaned first surface to be bonded and the cleaned second surface to be bonded, and bonding the coated first surface to be bonded and the coated second surface to be bonded together; finally, curing the first surface to be bonded and the second surface to be bonded which are bonded together; therefore, the display screen and the bonding carrier can be bonded, not only has good bonding effect, but also has lower cost.
Drawings
Fig. 1 is a flowchart of a preferred embodiment of a method for bonding a display screen according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to fall within the scope of the present invention.
An embodiment of the present invention provides a method for bonding a display screen, and referring to fig. 1, a flowchart of a preferred embodiment of the method for bonding a display screen provided by the present invention is shown, where the method includes steps S11 to S15:
step S11, providing a display screen to be bonded, a bonding carrier and an adhesive;
step S12, cleaning the first surface to be bonded of the display screen and the second surface to be bonded of the bonding carrier;
step S13, coating the adhesive on the cleaned first surface to be bonded and the cleaned second surface to be bonded;
step S14, bonding the coated first surface to be bonded and the coated second surface to be bonded together;
and S15, curing the first surface to be bonded and the second surface to be bonded which are bonded together.
In the implementation, firstly, a display screen to be bonded, a bonding carrier and an adhesive are provided, and before the display screen is actually bonded, a first surface to be bonded of the display screen and a second surface to be bonded of the bonding carrier are respectively cleaned, so that the first surface to be bonded of the display screen is bonded on the second surface to be bonded of the bonding carrier through the adhesive; then, coating an adhesive on the first surface to be bonded after the cleaning treatment and the second surface to be bonded after the cleaning treatment, and bonding the first surface to be bonded after the adhesive coating and the second surface to be bonded after the adhesive coating together, for example, bonding the first surface to be bonded and the second surface to be bonded together through pressing; and finally, carrying out curing treatment on the first surface to be bonded and the second surface to be bonded which are bonded together, so that the adhesive coated on the first surface to be bonded and the second surface to be bonded is cured, and bonding between the display screen and the bonding carrier is realized.
In another preferred embodiment, the adhesive comprises the following components in percentage by weight: 35 to 70 percent of polyurethane, 10 to 15 percent of diisononyl phthalate, 15 to 20 percent of carbon, 5 to 10 percent of calcium carbonate, 2 to 5 percent of coupling agent, 0.05 to 0.25 percent of catalyst and 5 percent of UV photoinitiator, wherein the total amount is 100 percent.
Specifically, in combination with the above embodiment, the raw material components of the adhesive used for bonding include Polyurethane (PU), diisononyl phthalate (DINP), carbon, calcium carbonate, a coupling agent, a catalyst and a UV photoinitiator, wherein the weight percentage of the polyurethane in the total weight of the adhesive is 35% -70%, the weight percentage of the diisononyl phthalate in the total weight of the adhesive is 10% -15%, the weight percentage of the carbon in the total weight of the adhesive is 15% -20%, the weight percentage of the calcium carbonate in the total weight of the adhesive is 5% -10%, the weight percentage of the coupling agent in the total weight of the adhesive is 2% -5%, the weight percentage of the catalyst in the total weight of the adhesive is 0.05% -0.25%, the weight percentage of the UV photoinitiator in the total weight of the adhesive is 5%, and the sum of the weight percentages of all the raw material components in the adhesive is 100%.
As an improvement of the above scheme, the coupling agent is a silane coupling agent.
Specifically, in combination with the above embodiment, the coupling agent in the adhesive may be a silane coupling agent; for example, vinyl trimethoxysilane; coupling agents of this type can be used to increase the affinity between glass fibers, inorganic fillers and resins reactive with vinyl groups.
As an improvement of the above scheme, the catalyst is a metal catalyst.
Specifically, in combination with the above embodiment, the catalyst in the adhesive may be a metal catalyst, which has a certain adsorption effect on moisture and can promote curing, but the catalyst itself may be used or not.
In a further preferred embodiment, the cleaning treatment for the first surface to be bonded of the display screen and the second surface to be bonded of the bonding carrier specifically includes:
and cleaning the first surface to be bonded of the display screen and the second surface to be bonded of the bonding carrier by using ethanol.
Specifically, in combination with the above embodiment, when cleaning the first surface to be bonded of the display screen and the second surface to be bonded of the bonding carrier, ethanol may be used to clean the first surface to be bonded of the display screen and the second surface to be bonded of the bonding carrier, respectively, so as to remove stains on the first surface to be bonded and the second surface to be bonded.
In a further preferred embodiment, the first surface to be bonded and the second surface to be bonded which are bonded together are subjected to a curing treatment, specifically comprising:
carrying out light curing treatment on the first surface to be bonded and the second surface to be bonded which are bonded together;
and carrying out heat curing treatment on the first surface to be bonded and the second surface to be bonded after the light curing.
Specifically, in combination with the above embodiment, when the first surface to be bonded and the second surface to be bonded that are bonded together are subjected to the curing treatment, the first surface to be bonded and the second surface to be bonded that are bonded together may be subjected to the light curing treatment first, and after the light curing treatment, the first surface to be bonded and the second surface to be bonded after the light curing treatment are subjected to the heating curing treatment.
The adhesive used in the embodiment of the invention has the advantages of double-sided pressure-sensitive adhesive tape and hot melt adhesive, fully utilizes two curing methods of illumination and heating, bonds the display screen, and has better bonding effect.
As an improvement of the scheme, the intensity of the light used in the light curing is 550-600 mW/cm 2 The illumination time is 5s.
Specifically, in combination with the above embodiment, when the first surface to be bonded and the second surface to be bonded, which are bonded together, are subjected to the photo-curing treatment, the intensity of the light used is 550mW/cm 2 ～600mW/cm 2 Within the range, the illumination duration was 5 seconds.
For example, the intensity of the light used may be 550mW/cm 2 、560mW/cm 2 、570mW/cm 2 、580mW/cm 2 、590mW/cm 2 、600mW/cm 2 And the like, can be set according to actual requirements, and the embodiment of the invention is not particularly limited.
As an improvement of the scheme, the heating temperature during heating and curing is 120 ℃ and the heating time is 50-60 min.
Specifically, in combination with the above embodiment, when the first surface to be bonded and the second surface to be bonded after the light irradiation curing treatment are subjected to the heat curing treatment, the temperature is required to be 120 ℃, and the heating duration is in the range of 50 minutes to 60 minutes.
The heating time may be, for example, 50 minutes, 51 minutes, 52 minutes, 53 minutes, 54 minutes, 55 minutes, 56 minutes, 57 minutes, 58 minutes, 59 minutes, 60 minutes, or the like, and may be set according to actual requirements, which is not particularly limited in the embodiment of the present invention.
In combination with all the above embodiments, the implementation of the present solution will be described below by means of a first specific embodiment, including: (1) Providing a display screen to be bonded, a bonding carrier and an adhesive, wherein the adhesive comprises the following raw material components in percentage by weight in the total weight of the adhesive: 35-70% of polyurethane, 10-15% of diisononyl phthalate, 15-20% of carbon, 5-10% of calcium carbonate, 2-5% of coupling agent, 0.05-0.25% of catalyst, 5% of UV photoinitiator and 100% of adhesive; (2) Respectively cleaning the first surface to be bonded of the display screen and the second surface to be bonded of the bonding carrier by using ethanol; (3) Coating an adhesive on the first surface to be bonded after the cleaning treatment and the second surface to be bonded after the cleaning treatment, and bonding the first surface to be bonded after the adhesive coating and the second surface to be bonded after the adhesive coating together; (4) The first surface to be bonded and the second surface to be bonded which are bonded together are subjected to light curing treatment, wherein the intensity of light used in light curing is 550mW/cm 2 The illumination time is 5 seconds; (5) And carrying out heat curing treatment on the first surface to be bonded and the second surface to be bonded after the light curing treatment, wherein the heating temperature during heat curing is 120 ℃, and the heating time is 50 minutes.
In combination with all the above embodiments, the implementation of the present solution will be described by a second specific embodiment, including: (1) Providing a display screen to be bonded, a bonding carrier and an adhesive, wherein the weight percentage of each raw material component in the adhesive and the dosage of each raw material component in the total weight of the adhesiveThe percentages are as follows: 35-70% of polyurethane, 10-15% of diisononyl phthalate, 15-20% of carbon, 5-10% of calcium carbonate, 2-5% of coupling agent, 0.05-0.25% of catalyst, 5% of UV photoinitiator and 100% of adhesive; (2) Respectively cleaning the first surface to be bonded of the display screen and the second surface to be bonded of the bonding carrier by using ethanol; (3) Coating an adhesive on the first surface to be bonded after the cleaning treatment and the second surface to be bonded after the cleaning treatment, and bonding the first surface to be bonded after the adhesive coating and the second surface to be bonded after the adhesive coating together; (4) The first surface to be bonded and the second surface to be bonded which are bonded together are subjected to light curing treatment, wherein the intensity of light used in light curing is 580mW/cm 2 The illumination time is 5 seconds; (5) And carrying out heat curing treatment on the first surface to be bonded and the second surface to be bonded after the light curing treatment, wherein the heating temperature during heat curing is 120 ℃, and the heating time is 55 minutes.
In combination with all the above embodiments, the implementation of the present solution will be described below by means of a third specific embodiment, including: (1) Providing a display screen to be bonded, a bonding carrier and an adhesive, wherein the adhesive comprises the following raw material components in percentage by weight in the total weight of the adhesive: 35-70% of polyurethane, 10-15% of diisononyl phthalate, 15-20% of carbon, 5-10% of calcium carbonate, 2-5% of coupling agent, 0.05-0.25% of catalyst, 5% of UV photoinitiator and 100% of adhesive; (2) Respectively cleaning the first surface to be bonded of the display screen and the second surface to be bonded of the bonding carrier by using ethanol; (3) Coating an adhesive on the first surface to be bonded after the cleaning treatment and the second surface to be bonded after the cleaning treatment, and bonding the first surface to be bonded after the adhesive coating and the second surface to be bonded after the adhesive coating together; (4) The first surface to be bonded and the second surface to be bonded which are bonded together are subjected to light curing treatment, wherein the intensity of light used in light curing is 600mW/cm 2 The illumination time is 5 seconds; (5) First after light curing treatmentAnd carrying out heating and curing treatment on the surface to be bonded and the second surface to be bonded, wherein the heating temperature during heating and curing is 120 ℃, and the heating time is 60 minutes.
In summary, according to the bonding method of the display screen provided by the embodiment of the invention, firstly, a display screen to be bonded, a bonding carrier and an adhesive are provided, and cleaning treatment is performed on a first surface to be bonded of the display screen and a second surface to be bonded of the bonding carrier; then, coating the adhesive on the cleaned first surface to be bonded and the cleaned second surface to be bonded, and bonding the coated first surface to be bonded and the coated second surface to be bonded together; finally, curing the first surface to be bonded and the second surface to be bonded which are bonded together; therefore, the display screen and the bonding carrier can be bonded, not only has good bonding effect, but also has lower cost.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (8)
1. A method of bonding a display screen, comprising:
providing a display screen to be bonded, a bonding carrier and an adhesive;
cleaning the first surface to be bonded of the display screen and the second surface to be bonded of the bonding carrier;
coating the adhesive on the cleaned first surface to be bonded and the cleaned second surface to be bonded;
joining the coated first surface to be bonded and the second surface to be bonded together;
the first surface to be bonded and the second surface to be bonded which are bonded together are subjected to a curing treatment.
2. The method for bonding a display screen according to claim 1, wherein the adhesive comprises the following components in percentage by weight: 35 to 70 percent of polyurethane, 10 to 15 percent of diisononyl phthalate, 15 to 20 percent of carbon, 5 to 10 percent of calcium carbonate, 2 to 5 percent of coupling agent, 0.05 to 0.25 percent of catalyst and 5 percent of UV photoinitiator, wherein the total amount is 100 percent.
3. The method of bonding a display panel according to claim 2, wherein the coupling agent is a silane coupling agent.
4. The method of bonding a display screen according to claim 2, wherein the catalyst is a metal catalyst.
5. The bonding method of display panel according to claim 1, wherein the cleaning treatment of the first surface to be bonded of the display panel and the second surface to be bonded of the bonding carrier specifically comprises:
and cleaning the first surface to be bonded of the display screen and the second surface to be bonded of the bonding carrier by using ethanol.
6. The bonding method of display screen according to claim 1, wherein the curing treatment of the first surface to be bonded and the second surface to be bonded, which are bonded together, specifically comprises:
carrying out light curing treatment on the first surface to be bonded and the second surface to be bonded which are bonded together;
and carrying out heat curing treatment on the first surface to be bonded and the second surface to be bonded after the light curing.
7. The method of bonding a display panel according to claim 6, wherein the intensity of light used in the light curing is 550 to 600mW/cm 2 The illumination time is 5s.
8. The method of bonding a display panel according to claim 6, wherein the heating temperature during the heat curing is 120 ℃ and the heating time is 50 to 60 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210076882.4A CN116515406A (en) | 2022-01-24 | 2022-01-24 | Display screen bonding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210076882.4A CN116515406A (en) | 2022-01-24 | 2022-01-24 | Display screen bonding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116515406A true CN116515406A (en) | 2023-08-01 |
Family
ID=87403403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210076882.4A Pending CN116515406A (en) | 2022-01-24 | 2022-01-24 | Display screen bonding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116515406A (en) |
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2022
- 2022-01-24 CN CN202210076882.4A patent/CN116515406A/en active Pending
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