CN106155431A - Thin film touch sensing assembly, capacitance touch screen and attaching process thereof - Google Patents
Thin film touch sensing assembly, capacitance touch screen and attaching process thereof Download PDFInfo
- Publication number
- CN106155431A CN106155431A CN201510148959.4A CN201510148959A CN106155431A CN 106155431 A CN106155431 A CN 106155431A CN 201510148959 A CN201510148959 A CN 201510148959A CN 106155431 A CN106155431 A CN 106155431A
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- China
- Prior art keywords
- thin film
- touch sensing
- optical cement
- liquid optical
- film touch
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Links
- 239000010409 thin film Substances 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000008569 process Effects 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 54
- 230000003287 optical effect Effects 0.000 claims abstract description 53
- 239000004568 cement Substances 0.000 claims abstract description 52
- 239000003292 glue Substances 0.000 claims description 35
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 28
- 239000004332 silver Substances 0.000 claims description 28
- 229910052709 silver Inorganic materials 0.000 claims description 28
- 239000010408 film Substances 0.000 claims description 24
- 239000011248 coating agent Substances 0.000 claims description 21
- 238000000576 coating method Methods 0.000 claims description 21
- 239000002002 slurry Substances 0.000 claims description 17
- 238000007639 printing Methods 0.000 claims description 12
- 238000001723 curing Methods 0.000 claims description 8
- 239000003990 capacitor Substances 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 6
- 238000007650 screen-printing Methods 0.000 claims description 5
- 238000007711 solidification Methods 0.000 claims description 5
- 230000008023 solidification Effects 0.000 claims description 5
- 238000012546 transfer Methods 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000013007 heat curing Methods 0.000 claims description 4
- 229920002472 Starch Polymers 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000007641 inkjet printing Methods 0.000 claims description 3
- 238000000016 photochemical curing Methods 0.000 claims description 3
- 230000002269 spontaneous effect Effects 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 235000019698 starch Nutrition 0.000 claims description 3
- 239000008107 starch Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000010030 laminating Methods 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract 1
- 239000011521 glass Substances 0.000 description 8
- 239000007787 solid Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Abstract
The invention discloses thin film touch sensing assembly, capacitance touch screen and attaching process thereof.Described attaching process includes providing thin film touch sensing and mould release membrance, is coated with liquid optical cement, liquid optical cement precuring between, and then forms thin film touch sensing assembly and capacitance touch screen.Described touch sensing assembly and capacitance touch screen decrease the bubble during laminating and can prevent thin film touch sensing from deforming, and overcome the defect of outward appearance and obtain better performance.
Description
Technical field
The present invention relates to touch screen technology, particularly to attaching process and the Related product of a kind of thin-film capacitor touch screen.
Background technology
Touch screen as one simply, man-machine interaction mode easily, have been widely used for the various aspects of daily life.
By touch sensible principle, touch screen is broadly divided into resistance-type, condenser type, surface infrared type touch screen etc..Wherein, capacitive touch
Touch screen there is simple in construction, light transmittance height, rub resistance, resistance to ambient humidity variations in temperature, length in service life and can realize tapping more
The advantage such as touch, thus day by day become the main flow in touch screen market.
Along with the development of science and technology, the thickness requirement of capacitive touch screen is more and more thinner, and to meet, mobile terminal etc. is lightening to be wanted
Ask.Therefore, capacitive touch screen begins with and has the thin of face glass and the thin film touch sensing that is fitted on face glass
Membrane capacitance formula touch screen.During preparing thin film capacitor type touch screen, thin film touch sensing can by solid state optics glue or
Liquid optical cement is fitted on face glass.But, when using solid state optics glue, thin film touch sensing cannot be filled up completely with face
, easily there are a large amount of bubbles and is difficult to discharge, causing product appearance bad in ink offset on glass sheet；And use liquid optics
The problem that limit glue overflows then is there is during glue laminating, the optical cement overflowed for cleaning, need to expend substantial amounts of human resources, cause into
This rising.Additionally, during laminating, thin film touch sensing easily produces bigger deformation at ink offset, and extends to
Viewfinder area, affects product appearance further.
Summary of the invention
For the problems referred to above existing for prior art, it is contemplated that bubble when reducing laminating in capacitance touch screen production process
Produce and can reduce the deformation of thin film touch sensing, thus obtain performance and all good capacitance touch screen of outward appearance.
The technical solution of the present invention is achieved in that
The attaching process of a kind of capacitance touch screen, comprises the steps:
S1: thin film touch sensing is provided
It is included on thin film touch sensing printing protection glue on the silver slurry pin of bound connection；
S2: mould release membrance is provided
Including mould release membrance perforate and overlay film；I.e. starch pin binding place, region surface configuration according to the silver of thin film touch sensing corresponding
Mould release membrance, the position perforate in corresponding silver paste pin binding region on described mould release membrance, and then described mould release membrance non-from
Profile attaches protecting film；
The coating of S3: liquid optical cement and precuring
It is included between silver slurry pin binding surface, place, region and release of described mould release membrance of described thin film touch sensing
Coating liquid optical cement；And and then described liquid optical cement precuring can keep three-dimensional shape to it and there is mobility；
S4: the protection glue of the protecting film and silver slurry pin binding region of removing mould release membrance forms thin film touch sensing assembly
Described protecting film and protection glue are removed by external force；Such as include but not limited to by mechanically or manually removing described protecting film
And protection glue, the removal of described protection glue can be removed in the lump along with the protecting film of described mould release membrance is related.
S5: subsequent handling
Including cutting of described thin film touch sensing assembly, and bind with flexible PCB, and and panel attachment.
Concrete, described thin film touch sensing is the multi-mode thin film touch sensing that modulus is more than 1.
Further, protect the printing of glue to use described in S1 but be not limited to inkjet printing, silk screen printing, bat printing, transfer
Or impressing, its print thickness is 1-100 μm；Preferably, described print thickness is 5-30 μm.
Described protection glue is peelable protection glue；
S1 also includes the curing schedule of described protection glue, described in be cured as spontaneous curing, or be heating and curing, or UV solidification.
Further, mould release membrance described in S2 is light mould release membrance.
Further, the coating of liquid optical cement described in S3 can use but be not limited to blade coating, or spraying, or roller coat, or silk
Wire mark brush, or bat printing, or transfer, or coating roll extrusion coated；The coating thickness of described liquid optical cement is 1-100 μm.
Further, the precuring of liquid optical cement described in S3 uses heat cure or photocuring, as solid in UV solidification or visible ray
Change.
Further, described liquid optical cement precuring thing can keep three-dimensional shape and have mobility.
Invention also provides a kind of thin film touch sensing assembly, include the most successively:
Thin film touch sensing, liquid optical cement precuring thing and mould release membrance；
Described thin film touch sensing includes the silver slurry pin that film substrate and binding are connected in described film substrate；
Described liquid optical cement precuring thing covers silver slurry pin binding surface, place, district the sky being distributed in described thin film touch sensing
Go out silver paste pin binding district, be that liquid optical cement is coated and formed through precuring on described thin film touch sensing；
Described mould release membrance is covered on the upper surface away from described thin film touch sensing the sky of described liquid optical cement precuring thing
Go out silver paste pin binding district.
Further, described liquid optical cement precuring thing can keep three-dimensional shape and have mobility.
Further, described thin film touch sensing is the multi-mode thin film touch sensing that modulus is more than 1.
Preferably, described liquid optical cement coating thickness is 1-100 μm.
Preferably, described mould release membrance is light mould release membrance.
Invention also provides a kind of thin-film capacitor touch screen, including panel and flexible PCB, also include as foregoing
Thin film touch sensing assembly, the binding of described flexible PCB is connected to described thin film touch sensing assembly, described panel and institute
State thin film sensor external member to fit.
Thin film touch sensing assembly and thin-film capacitor touch screen, can use foregoing attaching process to produce as mentioned above
Make.
The present invention passes through coating and precuring, integrated liquid and the advantage of solid state optics transparent adhesive tape of liquid optical cement, utilizes optics
The fillibility of transparent adhesive tape and mobility, overcome the ink offset that OCA in prior art cannot be filled up completely with on face glass,
The bubble caused is bad, and thin film touch sensing is deformed at ink offset, and extends to viewfinder area and then the glue that overflows occur
Phenomenon thus affect the problems such as outward appearance, while reducing bubble and touch sensing deformation of thin membrane thus obtaining good appearance, also
Obtain the more preferable capacitance touch screen of performance.
Accompanying drawing explanation
Fig. 1 is the attaching process schematic flow sheet of capacitance touch screen described in embodiment；
Fig. 2-Fig. 5 is respectively the process schematic representation of step S1-S4；
Fig. 6 is thin film touch sensing modular construction schematic diagram described in embodiment.
In figure, A is the front view of dependency structure, and B is the sectional view of its corresponding A figure；
11. multi-mode thin film touch sensings
12. binding silver slurry pins
13. thin film touch sensings
14. printing protection glue
21. mould release membrances
The perforate of 22. institutes of mould release membrance corresponding pin binding district
23. the covered protecting film of mould release membrance
31. liquid optical cements
31 '. liquid optical cement precuring thing
32. rollers
Detailed description of the invention
In order to make the technical problem to be solved, technical scheme and beneficial effect clearer, below in conjunction with accompanying drawing
And embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein is only in order to solve
Release the present invention, be not intended to limit the present invention.
The attaching process flow process of a kind of capacitance touch screen is as it is shown in figure 1, comprise the steps:
S1: the modulus multimembrane thin film touch sensing more than 1 is provided
Print protection glue including on the bound silver slurry pin connected thereon and and then solidify described protection glue, as shown in Figure 2.
Described multimembrane thin film touch sensing is the FEOL completing touch sensing, as be included on thin film carry out plated film,
The step such as photoetching, development, but Optical transparent adhesive of not yet fitting, do not cut and the multi-mode thin film of unbound connection flexible PCB touches
Control sensor.
The printing of described protection glue can use but be not limited to inkjet printing, silk screen printing, and bat printing transfers or imprints, and it prints thickness
Degree is 5-30 μm；Described protection glue is peelable protection glue；The solidification of described protection glue uses but is not limited to spontaneous curing, or adds
Heat cure, or UV solidification (ultraviolet light polymerization).
S2: mould release membrance is provided
Including mould release membrance perforate and overlay film；I.e. starch pin binding place, region surface configuration according to the silver of thin film touch sensing corresponding
Mould release membrance, the position perforate in corresponding silver paste pin binding region on described mould release membrance, and then described mould release membrance non-from
Profile attaches protecting film, as shown in Figure 3.
Described mould release membrance is light mould release membrance.
The coating of S3: liquid optical cement and precuring
It is included between silver slurry pin binding surface, place, region and release of described mould release membrance of described thin film touch sensing
Coating liquid optical cement；And and then described liquid optical cement precuring can keep three-dimensional shape to it and there is mobility, such as Fig. 4
Shown in.
The coating of described liquid optical cement uses but is not limited to blade coating, or spraying, or roller coat, or silk screen printing, or bat printing, or
Transfer, or coating roll extrusion coated, Fig. 4 shows the mode being employing coating roll extrusion coated；Described liquid optical cement
Coating thickness be 1-100 μm；The precuring of described liquid optical cement uses but is not limited to heat cure or photocuring, as UV is solid
Change or visible-light curing.
S4: the protection glue of the protecting film and silver slurry pin binding region of removing mould release membrance forms multi-mode thin film touch sensing assembly
Described protecting film and protection glue are removed by external force, are not limited to mechanically or manually remove as used；Described protection glue can
Can remove step by step with described protecting film, it is possible to related remove in the lump, or, it is possible to remove in subsequent handling, as can the most in good time
Follow-up bonding process is removed the most in good time, as shown in Figure 5；The most i.e. form multi-mode thin film touch sensing assembly, such as figure
Shown in 6.
Described multi-mode thin film touch sensing assembly include modulus be more than 1 multi-mode thin film touch sensing 11, liquid optical cement pre-
Solidfied material 31 ' and mould release membrance 21；
Described thin film touch sensing includes the silver slurry pin 12 that film substrate and binding are connected in described film substrate；
Described liquid optical cement precuring thing 31 ' covers and is distributed in the silver slurry pin binding surface, place, district of described thin film touch sensing also
Vacate silver paste pin binding district, be that liquid optical cement is coated and formed through precuring on described thin film touch sensing, its energy
Keep three-dimensional shape and there is mobility；
Described mould release membrance 21 is covered on the upper table away from described thin film touch sensing of described liquid optical cement precuring thing 31 '
Silver paste pin binding district is also vacated in face.
S5: subsequent handling
Such as can include cutting of described thin film touch sensing assembly, and bind with flexible PCB, and with the work such as panel attachment
Sequence and form capacitance touch screen.
By described multi-mode thin film touch sensing assembly, as shown in Figure 6, available multiple single mode thin film touch sensing group is cut
Part, described single mode thin film touch sensing device include thin film touch sensing 13, liquid optical cement precuring thing 31 ' and from
Type film 21.Liquid optical cement precuring thing 31 ' can keep three-dimensional shape and have mobility.Mould release membrance 21 is sticked in liquid
Optical cement precuring thing 31 ' is upper and arranges around binding silver slurry pin 12.Mould release membrance 21 can be to liquid optical cement precuring thing
31 ' play a protective role, and prevent liquid optical cement precuring thing 31 ' from contacting with external dust etc. and affect the patch with face glass
Close effect.
By described single mode thin film touch sensing assembly and panel, when fitting such as face glass, by mould release membrance 21 from liquid optics
After the upper removal of glue precuring thing 31 ', the single mode thin film eliminating mould release membrance is touched by available liquid optical cement precuring thing 31 '
Control sensor cluster is fitted on face glass.During laminating, owing to liquid optical cement precuring thing can keep solid figure
Shape and have mobility, therefore, can make full use of the mobility of liquid optical cement precuring thing 31 ' by removal of bubbles, can subtract
The bubble produced during few laminating；Simultaneously as liquid optical cement precuring thing 31 ' can keep three-dimensional shape, can be to thin film
Touch sensing 13 plays certain supporting role, it is possible to decrease or avoid thin film touch sensing 13 to produce change at ink offset
Shape.In addition it is also possible to reservation protection glue 14, i.e. thin film touch sensing device external member can also include protecting glue before laminating
14；When fitting, protection glue 14 and mould release membrance 21 are being removed in the lump.
As it has been described above, the applying method of described thin-film capacitor touch screen and thin film touch sensing assembly can efficiently reduce and fit
The bubble that produces in journey also can reduce or avoid the deformation of thin film touch sensing, thus obtains outward appearance and all good thin-film electro of performance
Hold touch screen.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and former
Any amendment, equivalent and the improvement etc. made within then, should be included within the scope of the present invention.
Claims (10)
1. an attaching process for capacitance touch screen, comprises the steps:
S1: thin film touch sensing is provided
It is included on thin film touch sensing printing protection glue on the silver slurry pin of bound connection；
S2: mould release membrance is provided
Including mould release membrance perforate and overlay film；I.e. starch pin binding place, region surface configuration according to the silver of thin film touch sensing corresponding
Mould release membrance, the position perforate in corresponding silver paste pin binding region on described mould release membrance, and then described mould release membrance non-from
Profile attaches protecting film；
The coating of S3: liquid optical cement and precuring
It is included between silver slurry pin binding surface, place, region and release of described mould release membrance of described thin film touch sensing
Coating liquid optical cement；And and then described liquid optical cement precuring；
S4: form thin film touch sensing assembly
Including the protecting film by external force removal mould release membrance,
Or, also include the protection glue subsequently or simultaneously going to desilver slurry pin binding region；
S5: subsequent handling
Including cutting of described thin film touch sensing assembly, and bind with flexible PCB, and and panel attachment.
2. the attaching process of capacitance touch screen as claimed in claim 1, it is characterised in that
Thin film touch sensing described in S1 is the multi-mode thin film touch sensing that modulus is more than 1.
3. the attaching process of capacitance touch screen as claimed in claim 1 or 2, it is characterised in that
The printing protecting glue described in S1 uses inkjet printing, silk screen printing, bat printing, transfers or imprints, and its print thickness is
1-100μm；Preferably, the print thickness of described protection glue is 5-30 μm；
Described protection glue is peelable protection glue；
S1 also includes the curing schedule of described protection glue, described in be cured as spontaneous curing, or be heating and curing, or UV solidification.
4. the attaching process of the capacitance touch screen as described in claim 1-3 is arbitrary, it is characterised in that
Mould release membrance described in S2 is light mould release membrance.
5. the attaching process of the capacitance touch screen as described in claim 1-4 is arbitrary, it is characterised in that
The coating of liquid optical cement described in S3 uses blade coating, or spraying, or roller coat, or silk screen printing, or bat printing, or turns
Print, or coating roll extrusion coated；
The coating thickness of described liquid optical cement is 1-100 μm.
6. the attaching process of the capacitance touch screen as described in claim 1-5 is arbitrary, it is characterised in that
The precuring of liquid optical cement described in S3 uses heat cure or photocuring.
7. the attaching process of the capacitance touch screen as described in claim 1-6 is arbitrary, it is characterised in that
Liquid optical cement precuring described in S3 can keep three-dimensional shape to it and have mobility.
8. a thin film touch sensing assembly, includes the most successively:
Thin film touch sensing, liquid optical cement precuring thing and mould release membrance；
Described thin film touch sensing includes the silver slurry pin that film substrate and binding are connected in described film substrate；Described thin film
Touch sensing is single mode thin film touch sensing, or the multi-mode thin film touch sensing that modulus is more than 1；
Described liquid optical cement precuring thing covers silver slurry pin binding surface, place, district the sky being distributed in described thin film touch sensing
Go out silver paste pin binding district, be that liquid optical cement is coated and formed through precuring on described thin film touch sensing；
Described mould release membrance is covered on the upper surface away from described thin film touch sensing the sky of described liquid optical cement precuring thing
Go out silver paste pin binding district.
9. thin film touch sensing assembly as claimed in claim 8, it is characterised in that
Described liquid optical cement precuring thing can keep three-dimensional shape and have mobility.
10. a thin-film capacitor touch screen, including panel and flexible PCB, also includes the thinnest
Film touch sensing assembly, the binding of described flexible PCB is connected to described thin film touch sensing assembly, and described panel is with described
Thin film sensor assembly is fitted by described liquid optical cement precuring thing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510148959.4A CN106155431A (en) | 2015-03-31 | 2015-03-31 | Thin film touch sensing assembly, capacitance touch screen and attaching process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510148959.4A CN106155431A (en) | 2015-03-31 | 2015-03-31 | Thin film touch sensing assembly, capacitance touch screen and attaching process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106155431A true CN106155431A (en) | 2016-11-23 |
Family
ID=57337973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510148959.4A Pending CN106155431A (en) | 2015-03-31 | 2015-03-31 | Thin film touch sensing assembly, capacitance touch screen and attaching process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106155431A (en) |
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| CN109002236A (en) * | 2018-07-20 | 2018-12-14 | 京东方科技集团股份有限公司 | A kind of flexible touch screen, its production method and display device |
| CN109388272A (en) * | 2017-08-14 | 2019-02-26 | 蓝思科技（长沙）有限公司 | A kind of touch screen applying method, touch screen and electronic equipment |
| CN109508614A (en) * | 2017-09-15 | 2019-03-22 | 南昌欧菲生物识别技术有限公司 | The manufacturing method of optical finger print recognizer component |
| CN111554195A (en) * | 2020-05-30 | 2020-08-18 | 京东方科技集团股份有限公司 | Flexible display module, preparation method thereof and electronic equipment |
| CN111688334A (en) * | 2020-06-15 | 2020-09-22 | 歌尔股份有限公司 | Bubble repairing equipment and bubble repairing method |
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