CN109375801A - A kind of applying method of touch screen - Google Patents
A kind of applying method of touch screen Download PDFInfo
- Publication number
- CN109375801A CN109375801A CN201811130827.9A CN201811130827A CN109375801A CN 109375801 A CN109375801 A CN 109375801A CN 201811130827 A CN201811130827 A CN 201811130827A CN 109375801 A CN109375801 A CN 109375801A
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- touch screen
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention discloses a kind of applying methods of touch screen, mainly include the following steps: to clear up TFT screen and TP screen → TFT screen and TP screen manual alignment fitting → pre- fitting → vacuum defoamation → mistake transition film → is packed and stored using OCA solid-state glue, wherein OCA solid-state glue includes the first release film layer set gradually from top to bottom, adhesive-layer and the second release film layer, the adhesive-layer mainly includes the component of following parts by weight: 80 parts~100 parts of acrylate adhesive, 1 part~3 parts of isocyanates, 2 parts~4 parts of o-phthalic acid dibutyl ester, 6 parts~8 parts of crosslinking and curing agent, 5 parts~8 parts of auxiliary rheological agents.Auxiliary rheological agents are added in OCA solid-state glue used in the present invention, enhance thixotropy of OCA solid-state glue when heated, so that even if OCA solid-state glue can follow TP screen to be plastically deformed together using the thixotropy of its own after completing vacuum defoamation, thus it just can be avoided the phenomenon that minute bubbles are generated due to stress difference, enhance the fitting effect of touch screen.
Description
Technical field
The present invention relates to touch screen preparation technical fields, and in particular to a kind of applying method of touch screen.
Background technique
Touch screen (touch screen) is also known as " touch screen ", " touch panel ", is a kind of input such as receivable contact
The induction type liquid crystal display device of signal, when contacting the graphic button on screen, the haptic feedback system on screen can root
Various connection devices are driven according to the formula of preprogramming, are substituted for mechanical push button panel, and draw by liquid crystal display
Wheat flour produces lively visual and sound effects.Touch screen as a kind of newest computer input apparatus, it be it is most simple at present, conveniently,
A kind of natural man-machine interaction mode.It imparts multimedia with brand-new looks, is that extremely attractive completely new multimedia is handed over
Mutual equipment.
The production scale of touch screen is also growing, and the most important feeldevice of touch screen is mounted in below transparent surface cover
Induction substrate, transparent surface cover be arranged in the product induction substrate outer end, play the role of protection induction substrate, incude base
Display screen is set below plate, is connected between transparent surface cover and induction substrate and display screen by OCA optical cement, OCA optics
Glue is with the high grade of transparency, and light transmittance reaches 99% or more, using also lossless outer in the environment of strong illumination, high temperature and humidity
It sees.In the prior art, touch screen can remain some empty quality after fitting, so bubble can be generated, therefore be bonded in touch screen
After must carry out deaeration processing.Currently, the bubble generated when in order to reduce fitting, the method generallyd use is to post in advance
Touch screen, which is put into vacuum degasing machine, carries out deaeration.But in really manufacturing process, it has been found that in vacuum degasing machine
After interior completion vacuum defoamation, due to the stiffening property of TP screen itself on touch screen and the thermal sensitivity of OCA optical cement itself, so that complete
At the fast quick-recovery of the stiffening property of TP screen after vacuum defoamation, and OCA optical cement endures it due to also remaining certain DIE Temperature
Property restore very slow, stress difference thus will be generated between TP screen and OCA optical cement, thus will TP screen and OCA optical cement it
Between generate minute bubbles, to leverage the fitting effect of touch screen.
Summary of the invention
To solve the above-mentioned problems, provide one kind can effectively solve the problem that above-mentioned technology existing in the prior art to the present invention
The applying method of the touch screen of problem.
The present invention adopts the following technical scheme:
A kind of applying method of touch screen, mainly includes the following steps:
Step 1: the outer surface of TFT screen and the outer surface of TP screen are subjected to wiping cleaning and drying with petroleum ether；
Step 2: using OCA solid-state glue by step 1 TFT screen and TP screen carry out alignment fitting and manual compression, obtain half
Finished product touch screen；
Step 3: the semi-finished product touch screen semi-finished product touch screen in step 2 being put into OCF machine and is bonded in advance, pre- patch is obtained
Close touch screen；
Step 4: touch screen will be bonded in advance obtained in step 3 be put into vacuum degasing machine and carry out vacuum defoamation, obtain deaeration
Touch screen；
Step 5: deaeration touch screen obtained in step 4 being put into laminating machine, the outer surface of deaeration touch screen is covered
Transition film process obtains finished product touch screen；
Step 6: finished product touch screen obtained in step 5 is packed and stored.
Wherein, OCA solid-state glue employed in the step 1 include the first release film layer set gradually from top to bottom,
Adhesive-layer and the second release film layer, the adhesive-layer mainly include the component of following parts by weight: 80 parts of acrylate adhesive~
100 parts, 1 part~3 parts of isocyanates, 2 parts~4 parts of o-phthalic acid dibutyl ester, 6 parts~8 parts of crosslinking and curing agent, auxiliary rheological agents 5
Part~8 parts.
As a preferred technical solution of the present invention, the auxiliary rheological agents use modified polyurea and N-Methyl pyrrolidone
Mixed liquor be made, the weight ratio of the modified polyurea and N-Methyl pyrrolidone is 1:1.5~3.
As a preferred technical solution of the present invention, the temperature being bonded in advance in the step 3 is 65 DEG C~75 DEG C,
The time being bonded in advance is 60S~100S, and the pressure being bonded in advance is 0.1MPa~0.2MPa.
As a preferred technical solution of the present invention, the temperature that vacuum defoamation is carried out in the step 4 is 65 DEG C~70
DEG C, the time of vacuum defoamation is 20min~25min, and the pressure of vacuum defoamation is 0.15MPa~0.2MPa.
The beneficial effects of the present invention are:
Auxiliary rheological agents are added in OCA solid-state glue used in the present invention, enhance touching of OCA solid-state glue when heated
Denaturation so that after completing vacuum defoamation even if OCA solid-state glue there is also certain DIE Temperature its can utilize it
The thixotropy of itself follows TP screen to be plastically deformed together, thus just can be avoided due to stress difference and generates showing for minute bubbles
As enhancing the fitting effect of touch screen；Auxiliary rheological agents of the invention use the mixed liquor of modified polyurea and N-Methyl pyrrolidone
The thixotropy that can not only enhance OCA solid-state glue is made, additionally it is possible to effectively improve its heat resistance, it is heated to reduce OCA solid-state glue
When deformation coefficient, the probability that bubble is generated between OCA solid-state glue and TP screen is returned when reducing heated.
Specific embodiment
Presently in connection with embodiment, the present invention will be described in further detail.
Embodiment 1
A kind of applying method of touch screen, mainly includes the following steps:
Step 1: the outer surface of TFT screen and the outer surface of TP screen are subjected to wiping cleaning and drying with petroleum ether；
Step 2: using OCA solid-state glue by step 1 TFT screen and TP screen carry out alignment fitting and manual compression, obtain half
Finished product touch screen；
Step 3: the semi-finished product touch screen semi-finished product touch screen in step 2 being put into OCF machine and is bonded in advance, pre- patch is obtained
Close touch screen；
Step 4: touch screen will be bonded in advance obtained in step 3 be put into vacuum degasing machine and carry out vacuum defoamation, obtain deaeration
Touch screen；
Step 5: deaeration touch screen obtained in step 4 being put into laminating machine, the outer surface of deaeration touch screen is covered
Transition film process obtains finished product touch screen；
Step 6: finished product touch screen obtained in step 5 is packed and stored.
Wherein, OCA solid-state glue employed in the step 1 include the first release film layer set gradually from top to bottom,
Adhesive-layer and the second release film layer, the adhesive-layer mainly include the component of following parts by weight: 80 parts of acrylate adhesive, different
1 part of cyanate, 2 parts of o-phthalic acid dibutyl ester, 6 parts of crosslinking and curing agent, 5 parts of auxiliary rheological agents；
The auxiliary rheological agents are made of the mixed liquor of modified polyurea and N-Methyl pyrrolidone, the modified polyurea and N-
The weight ratio of methyl pyrrolidone is 1:1.5；
The temperature being bonded in advance in the step 3 is 65 DEG C, and the time being bonded in advance is 100S, and the pressure being bonded in advance is
0.1Mpa；The temperature that vacuum defoamation is carried out in the step 4 is 65 DEG C, and the time of vacuum defoamation is 25min, the pressure of vacuum defoamation
Power is 0.15MPa.
Embodiment 2
A kind of applying method of touch screen, mainly includes the following steps:
Step 1: the outer surface of TFT screen and the outer surface of TP screen are subjected to wiping cleaning and drying with petroleum ether；
Step 2: using OCA solid-state glue by step 1 TFT screen and TP screen carry out alignment fitting and manual compression, obtain half
Finished product touch screen；
Step 3: the semi-finished product touch screen semi-finished product touch screen in step 2 being put into OCF machine and is bonded in advance, pre- patch is obtained
Close touch screen；
Step 4: touch screen will be bonded in advance obtained in step 3 be put into vacuum degasing machine and carry out vacuum defoamation, obtain deaeration
Touch screen；
Step 5: deaeration touch screen obtained in step 4 being put into laminating machine, the outer surface of deaeration touch screen is covered
Transition film process obtains finished product touch screen；
Step 6: finished product touch screen obtained in step 5 is packed and stored.
Wherein, OCA solid-state glue employed in the step 1 include the first release film layer set gradually from top to bottom,
Adhesive-layer and the second release film layer, the adhesive-layer mainly include the component of following parts by weight: 100 parts of acrylate adhesive,
3 parts of isocyanates, 4 parts of o-phthalic acid dibutyl ester, 8 parts of crosslinking and curing agent, 8 parts of auxiliary rheological agents；
The auxiliary rheological agents are made of the mixed liquor of modified polyurea and N-Methyl pyrrolidone, the modified polyurea and N-
The weight ratio of methyl pyrrolidone is 1:3；
The temperature being bonded in advance in the step 3 is 75 DEG C, and the time being bonded in advance is 60S, and the pressure being bonded in advance is
0.2Mpa；The temperature that vacuum defoamation is carried out in the step 4 is 70 DEG C, and the time of vacuum defoamation is 20min, the pressure of vacuum defoamation
Power is 0.2MPa.
Embodiment 3
A kind of applying method of touch screen, mainly includes the following steps:
Step 1: the outer surface of TFT screen and the outer surface of TP screen are subjected to wiping cleaning and drying with petroleum ether；
Step 2: using OCA solid-state glue by step 1 TFT screen and TP screen carry out alignment fitting and manual compression, obtain half
Finished product touch screen；
Step 3: the semi-finished product touch screen semi-finished product touch screen in step 2 being put into OCF machine and is bonded in advance, pre- patch is obtained
Close touch screen；
Step 4: touch screen will be bonded in advance obtained in step 3 be put into vacuum degasing machine and carry out vacuum defoamation, obtain deaeration
Touch screen；
Step 5: deaeration touch screen obtained in step 4 being put into laminating machine, the outer surface of deaeration touch screen is covered
Transition film process obtains finished product touch screen；
Step 6: finished product touch screen obtained in step 5 is packed and stored.
Wherein, OCA solid-state glue employed in the step 1 include the first release film layer set gradually from top to bottom,
Adhesive-layer and the second release film layer, the adhesive-layer mainly include the component of following parts by weight: 90 parts of acrylate adhesive, different
2 parts of cyanate, 3 parts of o-phthalic acid dibutyl ester, 7 parts of crosslinking and curing agent, 6 parts of auxiliary rheological agents.
The auxiliary rheological agents are made of the mixed liquor of modified polyurea and N-Methyl pyrrolidone, the modified polyurea and N-
The weight ratio of methyl pyrrolidone is 1:2；
The temperature being bonded in advance in the step 3 is 70 DEG C, and the time being bonded in advance is 80S, and the pressure being bonded in advance is
0.1Mpa；The temperature that vacuum defoamation is carried out in the step 4 is 68 DEG C, and the time of vacuum defoamation is 23min, the pressure of vacuum defoamation
Power is 0.2MPa.
Finally, it should be noted that these embodiments are merely to illustrate the present invention and do not limit the scope of the invention.In addition,
To those of ordinary skill in the art, other various forms of variations or change can also be made on the basis of the above description
It is dynamic.There is no necessity and possibility to exhaust all the enbodiments.And the obvious variation or change thus amplified out
It is dynamic to be still in the protection scope of this invention.
Claims (4)
1. a kind of applying method of touch screen, it is characterised in that: mainly include the following steps:
Step 1: the outer surface of TFT screen and the outer surface of TP screen are subjected to wiping cleaning and drying with petroleum ether；
Step 2: using OCA solid-state glue by step 1 TFT screen and TP screen carry out alignment fitting and manual compression, obtain semi-finished product
Touch screen；
Step 3: the semi-finished product touch screen semi-finished product touch screen in step 2 being put into OCF machine and is bonded in advance, pre- fitting touching is obtained
Touch screen；
Step 4: touch screen will be bonded in advance obtained in step 3 be put into vacuum degasing machine and carry out vacuum defoamation, obtain deaeration touch
Screen；
Step 5: deaeration touch screen obtained in step 4 being put into laminating machine, the outer surface of deaeration touch screen is carried out covering transition
Film process obtains finished product touch screen；
Step 6: finished product touch screen obtained in step 5 is packed and stored.
Wherein, OCA solid-state glue employed in the step 1 includes the first release film layer, the viscose glue set gradually from top to bottom
Layer and the second release film layer, the adhesive-layer mainly includes the component of following parts by weight: acrylate adhesive 80 parts~100
Part, 1 part~3 parts of isocyanates, 2 parts~4 parts of o-phthalic acid dibutyl ester, 6 parts~8 parts of crosslinking and curing agent, 5 parts of auxiliary rheological agents~
8 parts.
2. a kind of applying method of touch screen according to claim 1, it is characterised in that: the auxiliary rheological agents are using modification
The mixed liquor of polyureas and N-Methyl pyrrolidone is made, and the weight ratio of the modified polyurea and N-Methyl pyrrolidone is 1:1.5
~3.
3. a kind of applying method of touch screen according to claim 1, it is characterised in that: pasted in advance in the step 3
The temperature of conjunction is 65 DEG C~75 DEG C, and the time being bonded in advance is 60S~100S, and the pressure being bonded in advance is 0.1MPa~0.2MPa.
4. a kind of applying method of touch screen according to claim 1, it is characterised in that: carry out vacuum in the step 4
The temperature of deaeration is 65 DEG C~70 DEG C, and time of vacuum defoamation is 20min~25min, the pressure of vacuum defoamation be 0.15MPa~
0.2MPa。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811130827.9A CN109375801B (en) | 2018-09-27 | 2018-09-27 | Laminating method of touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811130827.9A CN109375801B (en) | 2018-09-27 | 2018-09-27 | Laminating method of touch screen |
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| Publication Number | Publication Date |
|---|---|
| CN109375801A true CN109375801A (en) | 2019-02-22 |
| CN109375801B CN109375801B (en) | 2021-06-22 |
Family
ID=65401938
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811130827.9A Active CN109375801B (en) | 2018-09-27 | 2018-09-27 | Laminating method of touch screen |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113580726A (en) * | 2021-07-30 | 2021-11-02 | 广西中沛光电科技有限公司 | Large-size capacitive touch screen attaching method |
| CN114571536A (en) * | 2020-11-30 | 2022-06-03 | 昊佰电子科技（上海）有限公司 | Method for removing bubbles from die-cut piece |
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|---|---|
| CN109375801B (en) | 2021-06-22 |
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Denomination of invention: A method for fitting touch screens Effective date of registration: 20230703 Granted publication date: 20210622 Pledgee: Guangxi Laibin Rural Commercial Bank Co.,Ltd. Pledgor: GUANGXI ZHONGPEI OPTOELECTRONICS TECHNOLOGY Co.,Ltd. Registration number: Y2023450000095 |
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