CN108762583A - A kind of flexible curved surface panel cover membrane type touch screen and its production method - Google Patents
A kind of flexible curved surface panel cover membrane type touch screen and its production method Download PDFInfo
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- CN108762583A CN108762583A CN201810993485.7A CN201810993485A CN108762583A CN 108762583 A CN108762583 A CN 108762583A CN 201810993485 A CN201810993485 A CN 201810993485A CN 108762583 A CN108762583 A CN 108762583A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 239000012528 membrane Substances 0.000 title claims abstract description 19
- 229920002799 BoPET Polymers 0.000 claims abstract description 89
- 239000000463 material Substances 0.000 claims abstract description 28
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 58
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 58
- 239000011521 glass Substances 0.000 claims description 50
- 238000007639 printing Methods 0.000 claims description 41
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 32
- 229910052709 silver Inorganic materials 0.000 claims description 32
- 239000004332 silver Substances 0.000 claims description 32
- 238000012360 testing method Methods 0.000 claims description 26
- 238000013003 hot bending Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 20
- 238000005520 cutting process Methods 0.000 claims description 19
- 239000003292 glue Substances 0.000 claims description 19
- 239000000853 adhesive Substances 0.000 claims description 14
- 230000001070 adhesive effect Effects 0.000 claims description 14
- 230000001681 protective effect Effects 0.000 claims description 14
- 230000000694 effects Effects 0.000 claims description 12
- 230000032683 aging Effects 0.000 claims description 9
- 238000007650 screen-printing Methods 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000007689 inspection Methods 0.000 claims description 6
- 238000003556 assay Methods 0.000 claims description 5
- 238000004080 punching Methods 0.000 claims description 5
- 102000004895 Lipoproteins Human genes 0.000 claims description 4
- 108090001030 Lipoproteins Proteins 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000002390 adhesive tape Substances 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000012797 qualification Methods 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 239000005041 Mylar™ Substances 0.000 claims description 2
- 239000011889 copper foil Substances 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 238000005530 etching Methods 0.000 claims description 2
- 238000011990 functional testing Methods 0.000 claims description 2
- 238000007731 hot pressing Methods 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 230000007306 turnover Effects 0.000 claims description 2
- 238000001039 wet etching Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims 2
- 210000001367 artery Anatomy 0.000 claims 1
- 210000003462 vein Anatomy 0.000 claims 1
- 239000010408 film Substances 0.000 description 24
- 238000013461 design Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
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- 238000010586 diagram Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
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- 238000000465 moulding Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 241001232787 Epiphragma Species 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
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- 238000005367 electrostatic precipitation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 210000003811 finger Anatomy 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
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- 229920006267 polyester film Polymers 0.000 description 1
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- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
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- 239000010409 thin film Substances 0.000 description 1
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Classifications
-
- 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
- G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention relates to a kind of flexible curved surface panel cover membrane type touch screen and its production methods, its touch screen includes PET film panel and touch screen body, the PET film panel cover is located at the top of the touch screen body, the PET film panel is made of PET film material, the PET film panel includes central fitting part and surrounding is hided sky part, surrounding sky part ring of hiding is located at the center fitting part surrounding, the center fitting part and the surrounding are hided, and to connect shape integral for empty part, and form the PET film panel, the touch screen body is fitted on the center fitting part bottom surface, the surrounding empty part of hiding is located at the touch screen body surrounding.
Description
Technical field
The present invention relates to a kind of touch screen and its production method, particularly relates to a kind of panel and touched made of epiphragma material
Screen and its production method.
Background technology
It is well known that curve screens are the display screens that a kind of surrounding is curved surface, mainly realized at present by oled panel.
Curve screens reduce the abrasion probability of screen, especially the higher mobile phone screen of touched rate.
When for mobile phone or similar products, the curved design of curve screens entirety is conducive to hold and palm of the hand arc is Celsius
Degree is bonded more preferably, and thumb touches the distance of screen when reducing one-handed performance.
But it is higher in the prevalence of cost applied to the curve screens on mobile phone, tablet computer class product at present, it encounters
The shortcomings that being easily broken when outer force effect, and it is as described above the major defect of traditional technology.
Invention content
The technical solution used in the present invention is：A kind of flexible curved surface panel cover membrane type touch screen comprising PET film face
Plate and touch screen body, the PET film panel cover are located at the top of the touch screen body, and the PET film panel is by PET film material
Material is made, which includes central fitting part and surrounding is hided sky part, and surrounding sky part ring of hiding is located in this
Entreat fitting part surrounding, the center fitting part and the surrounding are hided, and partly to connect shape integral for sky, and forms the PET film face
Plate.
The touch screen body is fitted on the center fitting part bottom surface, and the surrounding empty part of hiding is located at the touch screen sheet
Body surrounding is hided cavity by the hide lateral surface of lower surface and the touch screen body of empty part of the surrounding around forming one, this is hided
Cavity loop is located at the touch screen body side surrounding, which is tabular, and it is partly ring arc plate which, which hides empty,
Shape.
A kind of production method of flexible curved surface panel cover membrane type touch screen comprising following steps.
Step A makes PET film panel comprising following steps.
The first step：Cutting blanking is carried out to the PET mylars of coiled strip, PET mylars are cut into needed for typesetting
Size.
Second step：Shrink aging is carried out to the PET mylars cut in the first step, by the PET after cutting
Mylar tears the PE protective films of ink surface, is put on net vehicle, and baking box set temperature is at 80 ~ 90 degrees Celsius, time control
At 30 ~ 40 minutes, PET mylars propulsion baking box is subjected to shrink aging, after baking, PET mylars are in oven
Interior cooling 5 ~ after ten minutes, after oven temperature is less than 50 degrees Celsius, just PET mylars are taken out from baking box.
Third walks：The PET mylars for completing shrink aging in second step are cleaned with electrostatic cleaner, then are led to
Cross first of black of silk-screen printing, be put into after printing on net vehicle, then go to toast, baking condition be 70 degrees Celsius 30 minutes, drying
After the completion of roasting, PET mylars cool downs 5 in oven ~ after ten minutes, after oven temperature is less than 50 degrees Celsius, just PET is gathered
Membrane of lipoprotein takes out from oven, and hundred lattice tests are carried out after the completion of black ink baking.
4th step：The PET mylars that one of black printing is completed in being walked to third with electrostatic cleaner clean,
Again by silk-screen printing second black, be put into after printing on net vehicle, then go to toast, baking condition be 70 degrees Celsius 30 minutes,
After the completion of baking, PET mylars cool down 5 in oven ~ after ten minutes, after oven temperature is less than 50 degrees Celsius, just will
PET mylars take out from oven, and hundred lattice tests are carried out after the completion of black ink baking.
5th step：PET mylars to completing black printing in the 4th step carry out ink surface and cover protective film, then turn
It moves on to inside hundred grades of clean sheds and carries out wiping inspection, clean high temperature resistant protective film is changed again after the assay was approved, using high temperature resistant
Protective film be when carrying out hot bending for process below, protective film is unable to bear high temperature and dissolves.
6th step：Qualified PET mylars will have been examined to carry out the work that machine beats location hole in 5th step.
7th step：The PET mylars having openning hole in 6th step are cut into single mode, are cut using blanking machine, under
It is 5bar ± 1 that the air pressure of material machine, which needs operating pressure to be achieved, cuts the tension force of blanking machine within the scope of 0.65 ~ 0.75N.
8th step：Hot bending is carried out using hot bending die, the location hole in the 6th step is sleeved on to the lower die of hot bending die
On, then by machine by upper mold pressure come final hot bending.
The PET film panel is generated, this moment, which includes central fitting part and surrounding is hided sky part,
Surrounding sky part ring of hiding is located at the center fitting part surrounding, which is tabular, which hides sky part
For ring arc plate, hot bending condition is set as 400 degrees Celsius, 4 ~ 5 seconds of temperature.
9th step：By the good PET film panel punching press shape of hot bending, the 8th step is completed to the PET film face of hot bending
Plate is transferred on die cutting die, is positioned again by the location hole, and mold pushes aftershaping.
Step B makes touch screen body and the PET film panel cover in step A is located at the top of the touch screen body
Obtain finished product.
The touch screen body is fitted on the center fitting part bottom surface, and the surrounding empty part of hiding is located at the touch screen sheet
Body surrounding is hided cavity by the hide lateral surface of lower surface and the touch screen body of empty part of the surrounding around forming one, this is hided
Cavity loop is located at the touch screen body side surrounding.
Beneficial effects of the present invention are：It is partly ring arc plate to be hided empty due to the surrounding in the present invention, meanwhile, which hides
Empty part ring is located at the center fitting part surrounding, so the touch screen of the present invention has bent screen effect of the surrounding in cambered surface, together
When by the cavity of hiding, and the cavity loop of hiding be located at the structure design of the touch screen body side surrounding when the present invention touch screen
Edge position can buffer external force by when external force collision, to avoid the whole body that shields from being crashed situation
Occur, in addition, the PET film panel of the present invention is integrally made of PET film material, so embodying the same of Curved screen effect
When have production method simple, the characteristics of lower cost for material, be especially suitable for applying the manufacturing field in low side Curved screen.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the production process schematic diagram of the present invention.
Specific implementation mode
As shown in Figure 1, a kind of flexible curved surface panel cover membrane type touch screen comprising PET film panel 10 and touch screen
Ontology, the PET film panel 10 lid are located at the top of the touch screen body, which is made of PET film material.
PET film material is a kind of conventional materials, PET polyester film abbreviation PET films.Its main feature is that high temperature resistant, good to print
Brush, easy processing, proof voltage good insulating is that sheet is made using extrusion molding using polyethylene terephthalate as raw material,
Again through thin-film material made of biaxial tension.It is a kind of water white transparency, glossiness film, good mechanical performance, rigidity, hard
Degree Celsius and toughness it is high, puncture-resistant, rub resistance, high temperature resistant and low temperature, chemical resistance, oil resistivity, air-tightness and fragrance protectiveness
Well, it is one of common barrier laminated film base material.
The PET film panel 10 includes central fitting part 11 and surrounding is hided sky part 12.
The surrounding 12 ring of sky part of hiding is located at 11 surrounding of center fitting part, which hides with the surrounding
The connection shape of empty part 12 is integral, and forms the PET film panel 10.
The touch screen body is fitted on 11 bottom surface of center fitting part, and surrounding sky part 12 of hiding is located at the touch
Shield ontology surrounding.
Hide cavity 13 around forming one by the hide lateral surface of lower surface and the touch screen body of sky part 12 of the surrounding.
13 ring of cavity of hiding is located at the touch screen body side surrounding, which is tabular, the surrounding
Sky part 12 hide for ring arc plate.
When specific implementation, filled out in the cavity 13 of hiding equipped with flexible glue-line 14, the flexibility glue-line 14 is by flexible glue material
Material is made, for example, silica gel.
Since surrounding sky part 12 of hiding is ring arc plate in the present invention, meanwhile, the surrounding 12 ring of sky part of hiding is located at this
11 surrounding of central fitting part, so the touch screen of the present invention has bent screen effect of the surrounding in cambered surface, while by the sky of hiding
Chamber 13, and 13 ring of cavity of hiding is located at the structure design of the touch screen body side surrounding when the touch screen edge of the present invention
Position can buffer external force by when external force collision, to avoid the occurrence of that the whole body that shields is crashed.
It is made of PET film material in addition, the PET film panel 10 of the present invention is whole, so embodying Curved screen effect
Have production method simple while fruit, the characteristics of lower cost for material, is especially suitable for applying the manufacture neck in low side Curved screen
Domain.
When specific implementation, which includes OCA glue-lines 20, ito glass layer 30 and gum layer 40.Its
In, which is arranged between the PET film panel 10 and the ito glass layer 30, which is arranged in the ITO
On 30 bottom surface of glassy layer.
When specific implementation, which includes glassy layer 31, on 31 top surface of glassy layer, from lower
On be disposed with driving pattern layer 32, protection glue-line 33, silver paste line layer 34 and insulating layer 35.
On 31 bottom surface of glassy layer, it is equally disposed with driving pattern layer 32, protection glue-line 33, silver paste from top to bottom
Line layer 34 and insulating layer 35.
When specific implementation, FPC winding displacements 50 are connected on the ito glass layer 30.
As shown in Fig. 2, a kind of flexible curved surface panel cover membrane type touch screen and its production method comprising following steps.
Step A makes PET film panel 10 comprising following steps.
The first step：Cutting blanking is carried out to the PET mylars of coiled strip.
PET mylars are cut into the size needed for typesetting（Every material generally 2 ~ 4 moulds of row）, during cutting
The problem of should be noted that, first, typesetting utilization rate maximizes, second is that the size of cutting is uniformly conducive to the processing of back segment process
Manufacture ensures to make essence degree Celsius, reduces the registering error of silk-screen printing.
The air pressure of blanking machine is cut during cutting needs operating pressure to be achieved for 5bar ± 1, cuts blanking machine
Tension force within the scope of 0.65 ~ 0.75N.
It is using blanking machine cutting blanking or to use laser machine blanking when specific implementation, it can be according to next
Material web is wide to be determined.Purpose is to ensure that the uniqueness of size.
If using laser machine blanking laser power for 20.8W, speed degree Celsius 15mm/s, PPI 400,
DPI 1000。
Second step：Shrink aging is carried out to the PET mylars cut in the first step.
The PE protective films that PET mylars after cutting are torn to ink surface, are put on net vehicle, baking box setting temperature
For degree at 80 ~ 90 degrees Celsius, time control carries out shrink aging at 30 ~ 40 minutes, by PET mylars propulsion baking box.
After baking, PET mylars cool down 5 in oven ~ after ten minutes, when oven temperature is less than 50 degrees Celsius
Afterwards, just PET mylars are taken out from baking box, its flatness can be ensured by this cooling method, while after ensuring
Harmful effect, such as size distortion, edge will not be caused to warp to it when section process processing.
Third walks：The PET mylars for completing shrink aging in second step are cleaned with electrostatic cleaner, then are led to
Cross first of black of silk-screen printing：Halftone mesh number using 420 mesh, 8 ~ 10 μ of halftone film thickness, 80 degree of scraper hardness, scraper angle 15 ~
20 degree, 0 ~ 15 degree of scraper gradient, 2 ~ 3kg of scraper pressure, 3 ~ 8m/min of scraper speed, from 3 ~ 4mm of version height, print thickness 6 ~ 12
μ。
Be put into after printing on net vehicle, then go to toast, baking condition be 70 degrees Celsius 30 minutes.After the completion of baking, PET is poly-
Membrane of lipoprotein cools down 5 in oven ~ after ten minutes, after oven temperature is less than 50 degrees Celsius, just by PET mylars from oven
It takes out.The flatness that can ensure PET material by this cooling method prevents its deformation from warping.
Hundred lattice tests are carried out after the completion of black ink baking, the oblique of 45 degree of angles of multiple tracks is drawn on black ink with blade
Line is combined into 45 degree of lines grid, then is sticked to above grid with 3M610 tests adhesive tape, after being firmly bulldozed, then it is even with 45 degree of angles
Speed tears up test tape, and the black ink in lattice is not fallen off, that is, illustrates that adhesive force of the black ink on PET mylars is to close
Lattice.
4th step：The PET mylars that one of black printing is completed in being walked to third with electrostatic cleaner clean,
Pass through silk-screen printing second black again：Halftone mesh number uses 420 mesh, 8 ~ 10 μ of halftone film thickness, 80 degree of scraper hardness, scrapes nose angle
Degree 15 ~ 20 degree, 0 ~ 15 degree of scraper gradient, 2 ~ 3kg of scraper pressure, 3 ~ 8m/min of scraper speed, from 3 ~ 4mm of version height, print thickness
Spend 6 ~ 12 μ.
Be put into after printing on net vehicle, then go to toast, baking condition be 70 degrees Celsius 30 minutes.After the completion of baking, PET is poly-
Membrane of lipoprotein cools down 5 in oven ~ after ten minutes, after oven temperature is less than 50 degrees Celsius, just by PET mylars from oven
It takes out.
Hundred lattice tests are carried out after the completion of black ink baking, the oblique of 45 degree of angles of multiple tracks is drawn on black ink with blade
Line is combined into 45 degree of lines grid, then is sticked to above grid with 3M610 tests adhesive tape, after being firmly bulldozed, then it is even with 45 degree of angles
Speed tears up test tape, and the black ink in lattice is not fallen off, that is, illustrates that adhesive force of the black ink on PET mylars is to close
Lattice.
5th step：PET mylars to completing black printing in the 4th step carry out ink surface and cover protective film, then turn
It moves on to inside hundred grades of clean sheds and carries out wiping inspection, change clean high temperature resistant protective film again after the assay was approved.Using high temperature resistant
Protective film be when carrying out hot bending for process below, protective film is unable to bear high temperature and dissolves.
6th step：Qualified PET mylars will have been examined to carry out the work that machine beats location hole, every material in 5th step
Material makes a call to 4 location holes, is used in order to which the hot bending of next step positions.
7th step：The PET mylars having openning hole in 6th step are cut into single mode.Originally typesetting is 12 mould, cutting
It is convenient followed by single mode hot bending for the mode of 1 mould, 1 mould.
It is cut using blanking machine, it is 5bar ± 1 that the air pressure of blanking machine, which needs operating pressure to be achieved, cuts blanking machine
Tension force within the scope of 0.65 ~ 0.75N.
8th step：Hot bending is carried out using hot bending die.
Location hole in 6th step is sleeved in the lower die of hot bending die, then by machine by upper mold pressure come final heat
Roll forming.
The PET film panel 10 is generated, this moment, which includes that central fitting part 11 and surrounding are hided
Empty part 12, the surrounding 12 ring of sky part of hiding are located at 11 surrounding of center fitting part, which is tablet
Shape, the surrounding hide sky part 12 for ring arc plate.
Hot bending condition is usually to be set according to different PET materials, is usually set to temperature 400 degree, 4 ~ 5 seconds.Especially
Pay attention to the molding at fillet turning, temperature and time can be adjusted according to actual effect, or even replace the PET materials of unlike material
Material.
9th step：By the good 10 punching press shape of PET film panel of hot bending.
The PET film panel 10 that 8th step is completed to hot bending is transferred on die cutting die, is come again by the location hole
Positioning, mold push aftershaping.
Step B makes touch screen body and the PET film panel 10 lid in step A is located at the touch screen body top
Portion obtains finished product, and when specific implementation, step B includes the following steps.
Tenth step：Cleaning before ito glass printing.
Supplied materials ito glass after the assay was approved, returns again to printing process, first with electrostatic cleaner cleaning, dedusting.
11st step：The acidproof pattern of ito glass printed back.
By the tenth step ito glass acidproof pattern of oblique-arm type Semi-automatic printer elder generation printed back, then carry out UV solidifications.
Halftone mesh number is using 350 mesh, 8 ~ 10 μ of halftone film thickness, 80 degree of scraper hardness, 15 ~ 20 degree of scraper angle, scraper gradient
0 ~ 15 degree, 2 ~ 3kg of scraper pressure, 3 ~ 10m/min of scraper speed, from 3.5 ~ 4mm of version height, 8 ~ 12 μ of print thickness.
The cured energy of UV is 650~1000 mj/cm2.As long as UV energy ensure ink can mount it is dry will not paste halftone,
Board etc., ink adhesion is very good when making ITO pattern to prevent process below is not easy to be cleaned out.
12nd step：The ito glass of printed back side acid-proof ink is printed into positive acidproof pattern in turn.
The ito glass of 11st step oblique-arm type Semi-automatic printer is printed into positive acidproof pattern, then carries out UV and consolidates
Change.
Halftone mesh number is using 350 mesh, 8 ~ 10 μ of halftone film thickness, 80 degree of scraper hardness, 15 ~ 20 degree of scraper angle, scraper gradient
0 ~ 15 degree, 2 ~ 3kg of scraper pressure, 3 ~ 10m/min of scraper speed, from 3.5 ~ 4mm of version height, 8 ~ 12 μ of print thickness.
The cured energy of UV is 650~1000 mj/cm2.As long as UV energy ensure ink can mount it is dry will not paste halftone,
Board etc., ink adhesion is very good when making ITO pattern to prevent process below is not easy to be cleaned out.
13rd step：The ito glass of the printed acid-proof ink of positive and negative is carried out to the making of pattern patterns.
Dry method or wet etching are carried out using automatic etching wire body, the ITO pattern patterns of positive and negative are produced
Come.
14th step：The ito glass of pattern patterns will be made in 13rd step, print positive Protection glue ink,
Mounting is carried out after printing using IR continuous tunnel furnaces again to do.It is to protect the visible area of product not dirty to print Protection glue ink
Contaminate, scratch damage etc.；Also printing Protection glue ink is to ensure when silver paste printing ink is printed in next procedure outside visible area simultaneously
The cleanliness factor of glass, so that it is guaranteed that the adhesive force of silver paste printing ink.On one piece of halftone, printing is primary for the above twice Protection glue design
?.
Printing condition is：Halftone mesh number using 200 mesh, 20 ~ 28 μ of halftone film thickness, 80 degree of scraper hardness, scraper angle 20 ~
25 degree, 0 ~ 15 degree of scraper gradient, 2 ~ 3kg of scraper pressure, 2 ~ 8m/min of scraper speed, from 3 ~ 4mm of version height, print thickness 20 ~
30μ。
IR continuous tunnel furnace baking conditions are set as：240 DEG C, 3.0~5.0 ms/min.Opening of device is wanted after reaching set temperature
Preheating 15 ~ 20 minutes, can carry out operation.As long as the energy of IR stoves, which ensures that Protection glue ink can be mounted to do, will not paste halftone, board
Deng.
15th step：The ito glass that 14th step is printed to front protecting glue turns the Protection glue oil of printed back around
Ink, then take baking box baking.
Printing condition is：Halftone mesh number using 200 mesh, 20 ~ 28 μ of halftone film thickness, 80 degree of scraper hardness, scraper angle 20 ~
25 degree, 0 ~ 15 degree of scraper gradient, 2 ~ 3kg of scraper pressure, 2 ~ 8m/min of scraper speed, from 3 ~ 4mm of version height, print thickness 20 ~
30μ。
Baking condition：160 DEG C, 20 minutes.This time baking use baking box be for by the Protection glue of positive back face printing together
It dries, back wiping, inspection process is facilitated to tear up.
16th step：The ito glass that 15th step is printed to positive and negative Protection glue republishes positive silver paste circuit oil
Ink.It is to extract the positive ITO circuits inside visible area by silver paste circuit to print front side silver paste circuit ink.
Printing condition is：Halftone mesh number is using 420 mesh, 8 ~ 10 μ of halftone film thickness, 80 degree of scraper hardness, scraper angle 20 ~ 25
Degree, 0 ~ 15 degree of scraper gradient, 2 ~ 3kg of scraper pressure, 3 ~ 8m/min of scraper speed, from 3 ~ 3.5mm of version height, print thickness 8 ~ 12
μ。
Baking condition：160 DEG C, 10 minutes.It is dry only to carry out mounting, lower road silver paste is dried together when being toasted after printing.
17th step：16th step is printed to the ito glass of front side silver paste circuit, then the silver paste of printed back in turn
Circuit ink.Printed back silver paste printing ink is to extract the back side ITO circuits inside visible area by silver paste circuit.
Printing condition is：Halftone mesh number is using 420 mesh, 8 ~ 10 μ of halftone film thickness, 80 degree of scraper hardness, scraper angle 20 ~ 25
Degree, 0 ~ 15 degree of scraper gradient, 2 ~ 3kg of scraper pressure, 3 ~ 8m/min of scraper speed, from 3 ~ 3.5mm of version height, print thickness 8 ~ 12
μ。
Baking condition：160 DEG C, 50 minutes, thoroughly the silver paste printing ink of positive and negative is disposably dried, ensure its adhesive force and
Contact resistance.
Test ink adhesive force is carried out by the hundred lattice test of third step after the completion of baking, to ensure printed silver paste printing ink
Whether adhesive force is qualified.
18th step：The ito glass that 17th step is printed to positive and negative silver paste printing ink republishes front dielectric ink,
Play the role of protecting front side silver paste ink, prevent its oxidation, scratch, corrode etc..
Printing condition is：Halftone mesh number is using 420 mesh, 8 ~ 10 μ of halftone film thickness, 80 degree of scraper hardness, scraper angle 15 ~ 20
Degree, 0 ~ 15 degree of scraper gradient, 2 ~ 3kg of scraper pressure, 4 ~ 10m/min of scraper speed, from 3 ~ 4mm of version height, print thickness 8 ~ 12
μ.Mesh number selects high mesh number halftone, is to prevent fitting PET panels from easy ting produce bubble bad in order to which the thickness of ink is thinned.
Baking condition：It 130 DEG C, 10 minutes, only carries out mounting and does, lower road silver paste is dried together when being toasted after printing.
19th step：18th step is printed to the ito glass of front dielectric ink, republishes the insulation at the back side in turn
Ink plays the role of protecting back side silver paste printing ink, prevent its oxidation, scratch, corrode etc..
Printing condition is：Halftone mesh number is using 300 mesh, 8 ~ 10 μ of halftone film thickness, 80 degree of scraper hardness, scraper angle 15 ~ 20
Degree, 0 ~ 15 degree of scraper gradient, 2 ~ 3kg of scraper pressure, 4 ~ 10m/min of scraper speed, from 3 ~ 4mm of version height, print thickness 9 ~ 13
μ.This procedure selects the halftone of 300 mesh, is thick in order to which ink is printed, is equivalent to after having pasted PET panels because of backside ink
Exposed easy scratched damages silver paste circuit outside, therefore some shield by insulating oil ink thickness.
Baking condition：130 DEG C, 30 minutes, thoroughly the dielectric ink of positive and negative is disposably dried.
Test ink adhesive force is carried out by the test of hundred lattice of the 4th step after the completion of baking, to ensure printed dielectric ink
Adhesive force is qualified.
20th step：The ito glass greatly that 19th step is completed to whole printing process is sent to cutting, obtains small pieces
Sensor is cut using break bar, by the big glass-cutting size and shape that we need at small pieces.
Break bar uses 120 ° of disk alloy knives of 2.5*0.8*0.65mm, speed 8 ~ 9（10m/ minutes）.Pressure p 1 P2 it is equal
Using 0.17 ± 0.05MPa, 4.95 ± 0.3mm of break bar falling head.Glass-cutting effect gently breaks glass, glass with both hands when sliver
Subject to glass neatly disconnects.
21st step：The sensor that 20th step is cut into pieces is sent to binding process.Sensor first uses precompressed in front
The ACF of machine 25 μ of pre- patch thickness, 1.5mm wide, ACF are covered at FPC pressing golden fingers, and ACF must be covered in opening for FPC copper foils between two parties
At window；Paste the ACF at the back side in advance again in turn.
The parameter setting of preformer is：Temperature：165 ~ 210 DEG C, pressure：2.0 ~ 4.0 Mpa, speed：0.1~0.6 mm/
s。
The effect for pasting ACF is to connect, be connected with the FPC that subsequent processing is used by silver paste circuit.
22nd step：The glass sensor that 21st step positive and negative is posted to ACF after FPC manual alignments, then takes
It is bound, i.e., FPC is connected with the silver paste connection above glass sensor by ACF, most above to pulse hot press
FPC is plugged into the TP connectors on mainboard again when afterloading unit.
Pulse hot press binds parameter setting.
After the completion of hot pressing, on the point of the junction of FPC and circuit sealing prevent FPC from pulling or hurting for fixing FPC.
After FPC is bound, pulling force is tested with FPC tension testers：It is not peelable that vertical 90 ° of directions apply 500 gram forces；Water
It is certified products that it is not peelable, which to apply 1000 gram forces, for flat 180 ° of directions.
23rd step：The glass sensor that 22nd step has been bound to FPC is connected to electricity by the development board of IC
Brain, then volume production test pattern is entered by volume production test software and goes the data for detecting each channel whether normal.
Scribing line test is carried out after qualification again, sees whether lines show normally.
Can generally draw " mouth " it is rectangular, then draw " X " to detect the quality of circuit.
24th step：The sensor of 23rd step functional test qualification is subjected to pure water cleaning, patch is entered with protection
Close cleanliness factor when process.
25th step：Make optical clear glue-line.
OCA also known as Optical transparent adhesive hold size successfully according to typesetting design with blanking machine, and blanking machine air pressure reaches nominal operation
Side is operable in the case of pressure 5bar ± 1, and tension force is within the scope of 0.7 ~ 0.85N.
Again by the OCA layers of processing method using cross cutting, the binding position of FPC and shooting head bore position are set etc. and are available, with
It reduces difference in height and increases light transmittance.Shape molding and punching, the disposable punching of fluting are completed.
Electrostatic precipitation is used after being die cut again.
26th step：The cleaned sensor of 24th step is carried out and the clean oca glue of the 25th step
Small pieces are bonded, and are carried out using panel turnover machine soft to being bonded firmly.Glass sensor is put on the lower air draught platform of chip mounter, upper air draught is flat
Platform puts the OCA for being die cut shape, tears light release film and the positive Protection glues of glass sensor on OCA layers respectively, and laggard
Row fitting.
It is as follows to be bonded parameter setting.
27th step：De-bubble is carried out again after the completion of fitting.It will insert in electrostatic box, be sent into deaeration machine per flake products
De-bubble.De-bubble parameter setting is as follows：
Check that bubble either with or without completely removing, if without cleared, can carry out secondary de-bubble after de-bubble.5 DEG C, air pressure is turned up in temperature
1 kgf/ ㎝ 2 are turned up, the time lengthens 10 ~ 15 minutes.
28th step：Appearance wiping and inspection are carried out again except the product of good bubble first pastes gum, it at this time will be glass
The Protection glue at the back sides sensor is torn, and appearance test could be carried out.Wipe dirty and stain, check appearance whether there is or not scratch, stab,
Ink penetration play tooth, bubble, sundries, stain, white point etc. are bad.Appearance non-defective unit carries out positive and negative overlay film again, then carries out 100% work(
It can detection.
It is connected to computer by IC development boards, then whether just to go to detect the data in each channel by volume production test software
Often, and scribing line test is carried out, sees that lines display whether normally.
Scribing line test is carried out after Ok again, sees whether lines show normally.
Can generally draw " mouth " it is rectangular, then draw " X " to detect the quality of circuit.
29th step：It completes that touch screen is attached to the assembly effect for seeing reality and face-piece in complete machine again after the 28th step
Fruit, and effect is touched to complete machine and is confirmed.If touch is ineffective, touch screen can be optimized according to the actual conditions of complete machine
Parameter inside IC, to play its best performance.
Claims (8)
1. a kind of flexible curved surface panel cover membrane type touch screen, it is characterised in that：Including PET film panel and touch screen body,
The PET film panel cover is located at the top of the touch screen body, which is made of PET film material, the PET film
Panel includes central fitting part and surrounding is hided sky part, surrounding sky part ring of hiding are located at the center fitting part surrounding,
The center fitting part and the surrounding are hided, and to connect shape integral for empty part, and forms the PET film panel,
The touch screen body is fitted on the center fitting part bottom surface, and the surrounding empty part of hiding is located at the touch screen body four
Hide cavity around forming one by the hide lateral surface of lower surface and the touch screen body of empty part of the surrounding in week, the cavity of hiding
Ring is located at the touch screen body side surrounding, which is tabular, and it is partly ring arc plate which, which hides empty,.
2. a kind of flexible curved surface panel cover membrane type touch screen as described in claim 1, it is characterised in that：It fills out and sets in the cavity of hiding
Flexible glue-line.
3. a kind of flexible curved surface panel cover membrane type touch screen as described in claim 1, it is characterised in that：The touch screen body packet
Include OCA glue-lines, ito glass layer and gum layer, wherein the OCA glue-lines are arranged in the PET film panel and the ito glass layer
Between, which is arranged on the ito glass layer bottom surface.
4. a kind of flexible curved surface panel cover membrane type touch screen as claimed in claim 3, it is characterised in that：
The ito glass layer includes glassy layer, on the glassy layer top surface, is disposed with driving pattern layer, protection from bottom to top
Glue-line, silver paste line layer and insulating layer, on the glassy layer bottom surface, be equally disposed with from top to bottom driving pattern layer,
Protect glue-line, silver paste line layer and insulating layer.
5. a kind of flexible curved surface panel cover membrane type touch screen as described in claim 1, it is characterised in that：On the ito glass layer
It is connected with FPC winding displacements.
6. a kind of production method of flexible curved surface panel cover membrane type touch screen, which is characterized in that include the following steps：
Step A makes PET film panel comprising following steps,
The first step：Cutting blanking is carried out to the PET mylars of coiled strip, PET mylars are cut into the size needed for typesetting,
Second step：Shrink aging is carried out to the PET mylars cut in the first step, by the PET polyesters after cutting
Film tears the PE protective films of ink surface, is put on net vehicle, baking box set temperature at 80 ~ 90 degrees Celsius, time control 30 ~
40 minutes, PET mylars propulsion baking box is subjected to shrink aging, after baking, PET mylars drop in oven
Temperature 5 ~ after ten minutes, after oven temperature is less than 50 degrees Celsius, just PET mylars are taken out from baking box,
Third walks：The PET mylars for completing shrink aging in second step are cleaned with electrostatic cleaner, then pass through silk
First of black of wire mark brush, is put into after printing on net vehicle, then goes to toast, baking condition be 70 degrees Celsius 30 minutes, toasting
Cheng Hou, PET mylar cools down 5 in oven ~ after ten minutes, it is just that PET polyesters is thin after oven temperature is less than 50 degrees Celsius
Film takes out from oven, and hundred lattice tests are carried out after the completion of black ink baking,
4th step：The PET mylars that one of black printing is completed in being walked to third with electrostatic cleaner clean, then lead to
Cross silk-screen printing second black, be put into after printing on net vehicle, then go to toast, baking condition be 70 degrees Celsius 30 minutes, drying
After the completion of roasting, PET mylars cool downs 5 in oven ~ after ten minutes, after oven temperature is less than 50 degrees Celsius, just PET is gathered
Membrane of lipoprotein takes out from oven, and hundred lattice tests are carried out after the completion of black ink baking,
5th step：PET mylars to completing black printing in the 4th step carry out ink surface and cover protective film, are then transferred to
Wiping inspection is carried out inside hundred grades of clean sheds, clean high temperature resistant protective film is changed again after the assay was approved, using heat safe guarantor
Cuticula is when carrying out hot bending for process below, and protective film is unable to bear high temperature and dissolves,
6th step：Qualified PET mylars will have been examined to carry out the work that machine beats location hole in 5th step,
7th step：The PET mylars having openning hole in 6th step are cut into single mode, are cut using blanking machine, blanking machine
Air pressure to need operating pressure to be achieved be 5bar ± 1, cut the tension force of blanking machine within the scope of 0.65 ~ 0.75N,
8th step：Hot bending is carried out using hot bending die, the location hole in the 6th step is sleeved in the lower die of hot bending die, then
By machine by upper mold pressure come, final hot bending,
The PET film panel is generated, this moment, which includes central fitting part and surrounding is hided sky part, this four
Sky part ring of hiding in week is located at the center fitting part surrounding, which is tabular, and it is partly ring which, which hides empty,
Arc plate, hot bending condition are set as 400 degrees Celsius of temperature, 4 ~ 5 seconds,
9th step：By the good PET film panel punching press shape of hot bending, the PET film panel that the 8th step is completed to hot bending turns
It moving on on die cutting die, is positioned again by the location hole, mold pushes aftershaping,
Step B makes touch screen body and the PET film panel cover in step A is located at the top of the touch screen body and obtains
Finished product,
The touch screen body is fitted on the center fitting part bottom surface, and the surrounding empty part of hiding is located at the touch screen body four
Hide cavity around forming one by the hide lateral surface of lower surface and the touch screen body of empty part of the surrounding in week, the cavity of hiding
Ring is located at the touch screen body side surrounding.
7. a kind of production method of flexible curved surface panel cover membrane type touch screen as claimed in claim 6, it is characterised in that：?
In three steps and the 4th step, when by silk-screen printing first and second black, halftone mesh number is using 420 mesh, halftone film thickness 8
~ 10 μ, 80 degree of scraper hardness, 15 ~ 20 degree of scraper angle, 0 ~ 15 degree of scraper gradient, 2 ~ 3kg of scraper pressure, 3 ~ 8m/ of scraper speed
Min, from 3 ~ 4mm of version height, 6 ~ 12 μ of print thickness,
In third step and the 4th step, carry out hundred lattice and test its process to be to draw 45 degree of angles of multiple tracks on black ink with blade
Oblique line, 45 degree of lines grid is combined into, then be sticked to above grid with test adhesive tape, after being firmly bulldozed, then even with 45 degree of angles
Speed tears up test tape, and the black ink in lattice is not fallen off, that is, illustrates that adhesive force of the black ink on PET mylars is to close
Lattice.
8. a kind of production method of flexible curved surface panel cover membrane type touch screen as claimed in claim 6, it is characterised in that：B is walked
Suddenly include the following steps,
Tenth step：Cleaning before ito glass printing, supplied materials ito glass after the assay was approved, return again to printing process, are first removed with electrostatic
The cleaning of dirt machine, dedusting,
11st step：The acidproof pattern of ito glass printed back, the tenth step ito glass is first with oblique-arm type Semi-automatic printer
The acidproof pattern of printed back, then UV solidifications are carried out,
12nd step：The ito glass of printed back side acid-proof ink is printed into positive acidproof pattern in turn, by the 11st step
Ito glass prints positive acidproof pattern with oblique-arm type Semi-automatic printer, then carries out UV solidifications,
13rd step：The making that the ito glass of the printed acid-proof ink of positive and negative is carried out to pattern patterns, using automatic etching
Wire body carries out dry method or wet etching, and the ITO pattern patterns of positive and negative are made,
14th step：The ito glass of pattern patterns will be made in 13rd step, print positive Protection glue ink, print
Mounting is carried out after complete using IR continuous tunnel furnaces again to do, IR continuous tunnel furnace baking conditions are set as：240 DEG C, 3.0~5.0 ms/min,
15th step：The ito glass that 14th step is printed to front protecting glue turns the Protection glue ink of printed back around, then
Take baking box baking, baking condition：160 DEG C, 20 minutes,
16th step：The ito glass that 15th step is printed to positive and negative Protection glue republishes positive silver paste circuit ink,
Printing front side silver paste circuit ink is to toast item to extract the positive ITO circuits inside visible area by silver paste circuit
Part：160 DEG C, 10 minutes,
17th step：16th step is printed to the ito glass of front side silver paste circuit, then the silver paste circuit of printed back in turn
Ink, printed back silver paste printing ink are to toast item to extract the back side ITO circuits inside visible area by silver paste circuit
Part：, the test of hundred lattice is carried out after the completion of baking in 50 minutes and carries out test ink adhesive force, to ensure printed silver paste oil by 160 DEG C
Whether black adhesive force is qualified,
18th step：The ito glass that 17th step is printed to positive and negative silver paste printing ink republishes front dielectric ink, baking
Condition：130 DEG C, 10 minutes,
19th step：18th step is printed to the ito glass of front dielectric ink, republishes the insulating oil at the back side in turn
Ink, baking condition：130 DEG C, 30 minutes, the test of hundred lattice is carried out after the completion of baking and carries out test ink adhesive force, to ensure
The dielectric ink adhesive force of printing is qualified,
20th step：The ito glass greatly that 19th step is completed to whole printing process is sent to cutting, obtains small pieces sensor,
21st step：The sensor that 20th step is cut into pieces, is sent to binding process, and the fronts sensor are first pre- with preformer
Paste that 25 μ are thick, ACF of 1.5mm wide, ACF is covered at FPC pressing golden fingers, and ACF must be between two parties covered at the windowing of FPC copper foils；
Paste the ACF at the back side in advance again in turn,
22nd step：The glass sensor that 21st step positive and negative is posted to ACF after FPC manual alignments, then takes arteries and veins
It rushes above hot press and is bound, after the completion of hot pressing, the sealing on the point of the junction of FPC and circuit, for fixing FPC,
23rd step：The glass sensor that 22nd step has been bound to FPC, is detected,
24th step：The sensor of 23rd step functional test qualification is subjected to pure water cleaning,
25th step：Optical clear glue-line is made,
26th step：The cleaned sensor of 24th step is carried out to the small pieces with the clean oca glue of the 25th step
Fitting, it is soft to being bonded firmly using panel turnover machine progress, glass sensor is put on the lower air draught platform of chip mounter, upper air draught platform is put
It has been die cut the OCA of shape, light release film and the positive Protection glues of glass sensor on OCA layers has been torn respectively, is then pasted
It closes,
27th step：De-bubble is carried out again after the completion of fitting, will be inserted in electrostatic box per flake products, and be sent into deaeration machine and remove
Bubble,
28th step：Appearance wiping and inspection are carried out again except the product of good bubble first pastes gum,
29th step：It completes that touch screen is attached to the assembly effect for seeing reality and face-piece in complete machine again after the 28th step,
And effect is touched to complete machine and is confirmed.
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| CN109742189A (en) * | 2018-12-28 | 2019-05-10 | 东莞市沃德精密机械有限公司 | Overturn pressing device |
| CN109917967A (en) * | 2019-03-22 | 2019-06-21 | 芜湖伦丰电子科技有限公司 | A kind of method of continuous production touch screen function piece |
| CN110154567A (en) * | 2019-04-18 | 2019-08-23 | 蕲春广瑞电子科技有限公司 | A kind of screen printing method of touch screen |
| CN110544595A (en) * | 2019-09-07 | 2019-12-06 | 厦门铭彩电子科技有限公司 | Anti-static membrane switch and manufacturing method thereof |
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Effective date of registration: 20220209 Address after: 518000 723, unit 6, block 3, building 1, Taoyuanju District 4, Qianjin Second Road, Bao'an District, Shenzhen, Guangdong Province Applicant after: Ling Huaguang Address before: 518000 4th and 5th floors, building 4, hengtongfa Industrial Zone, Tangtou Industrial Park, Tangtou community, Shiyan street, Bao'an District, Shenzhen, Guangdong Applicant before: SHENZHEN HOTATOUCH CO.,LTD. Applicant before: Ling Huaguang |