CN104808857A - Full-laminating double-side touch display screen and manufacturing technology thereof - Google Patents
Full-laminating double-side touch display screen and manufacturing technology thereof Download PDFInfo
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- CN104808857A CN104808857A CN201510231474.1A CN201510231474A CN104808857A CN 104808857 A CN104808857 A CN 104808857A CN 201510231474 A CN201510231474 A CN 201510231474A CN 104808857 A CN104808857 A CN 104808857A
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Abstract
The invention discloses a manufacturing technology of a full-laminating double-side touch display screen. The manufacturing technology comprises the following steps of firstly, laminating a display device and a touch sensing thin film; attaching a solid ultraviolet flexible glue between the touch sensing thin film and a protecting cover plate to form a pre-laminating integral screen; removing bubbles in an autoclave; finally, curing and forming. The full-laminating double-side touch display screen manufactured by the novel technology has the advantages that the easiness in generation of the air bubbles is avoided, two large-size bonding bodies have the equal distance and same thickness, the numbness is avoided, and the finished rate is improved; the surrounding of the display device is coated by the integral touch sensing thin film, all surfaces can be effectively touched, and the touch range of the screen is maximally expanded.
Description
Technical field
The present invention relates to image display arts, particularly relate to the two-sided touching display screen of a kind of full laminating and manufacturing process thereof.
Background technology
Along with the develop rapidly of science and technology, the time interval that electronic product updates also shortens dramatically, and display screen, as the image display the closest with human lives's relation, all there occurs earth-shaking change from profile to function.No matter be mobile phone screen, computer screen or TV screen all experienced by by heaviness to frivolous, control to tangibly evolution by button.
The Seiko of ridge, temple was put on display in 2008 inside and outside can carry out the display of touch control screen operation in both sides from picture, and it obtains in adhering resistance film mode in transparent inorganic EL panel both sides.Electric resistance touch-control is single-point touch, and need firmly press, press points easily weares and teares, and causes touch control film low for serviceable life.
Except electric resistance touch-control, the touch-control of main flow is capacitance touching control and inductive touch control on the market in recent years, and the two compares electric resistance touch-control, because its surface can increase cover glass therefore not easy to wear.But the touch control film formed after having attached cover glass becomes rigid element, if use solid-state optical cement (i.e. OCA glue) to fit touch-screen and liquid crystal display, because OCA glue is once sizing of fitting, there is no mobility, thickness difference can be produced, produce simple-minded (similar moire fringes) defective products, area is more simple-minded more, and yield rate is lower; Use liquid UV glue, because it is unidirectionally extruded flowing, is easy to produce thickness poor, often has gas bubbles left in defoaming process, on screen, the simple-minded phenomenon of same easily generation, causes yield rate to reduce.
Therefore, need to improve prior art, make the element of any size can realize bubble-free and entirely fit.
Summary of the invention
An object of the present invention is the manufacturing process providing the two-sided touching display screen of a kind of full laminating.
The technical scheme realizing the object of the invention one is; the manufacturing process of the two-sided touching display screen of a kind of full laminating; it adopts bonding agent to be fitted mutually by the element arranged in turn and forms one; described element comprises cover sheet, touch-control sensing film and display; described display two sides is all pasted with touch-control sensing film; described cover sheet is attached at touch-control sensing film outside surface, it is characterized in that, each element laminating process comprises the following steps:
(1) fit in advance: describedly to fit in following A, B two kinds of laminating types any one in advance:
A, first by display and touch-control sensing film adhered, then between touch-control sensing film and cover sheet, attach solid-state uv flexible glue, form pre-laminating one screen;
B, first by cover sheet and touch-control sensing film adhered, then between touch-control sensing film and display, attach solid-state uv flexible glue, form pre-laminating one screen;
Described solid-state uv flexible glue thickness is 100 ~ 300 μm;
(2) deaeration: still kettle deaeration 10 ~ 250min put into by one screen by fitting in advance, controls pressure 0.5kg ~ 10kg in still kettle, temperature 30 ~ 65 DEG C; Still kettle deaeration is compared to the vacuum centrifugal defoaming of routine, and dull and stereotyped components and parts pressurized is even, and its de-aeration is stablized, and ensure that solid-state uv flexible glue thickness is even, make by the spacing of 2 transparent elements of fitting identical, deaeration is satisfactory for result;
(3) solidify: adopt powerful UV irradiation light to carry out strong illumination to transparent adhesive tape zoarium.
In order to better technique effect, the technical scheme of the object of the invention one can do following improvement:
1, described touch-control sensing film only a slice, it is coated on the positive and negative two sides of display or is coated on display surrounding; The region that touch-control sensing film covers all possesses touch-control sensing function, can any touch point position on this sheet touch-control sensing film of comprehensive location after being connected with 1C controller, add the touch-control area of display front, reverse side and side to greatest extent, achieve the comprehensive touch controllable function without dead angle of gross area.
2, described touch-control sensing film is capacitance touching control sensor film or electric magnetic induction type touch-control sensing film or half be capacitance touching control sensor film half is induction touch-control sensing film.The electric resistance touch-control induction that capacitance touching control is responded to or electric magnetic induction type touch-control sensing is more traditional, its touch-control film longer service life formed, wherein electric magnetic induction type touch-control sensing film carrys out touch-control owing to using the vigour of style in writing, and therefore precision is higher.
The object of the invention one adopts solid-state uv flexible glue display and touch-control sensing film and cover sheet to be fitted.Compare with solid-state OCA optical cement with the UV ultraviolet optics glue of liquid state, solid-state UV flexible glue has more good solid-state mobility, it is in the process being produced into reel sheet, oneself is all bubble through elimination, be fitted in the middle of two transparent dull and stereotyped components and parts in solid-state mode and become bubble-free colloid amboceptor, through the temperature-pressure of still kettle, soft solid state medium becomes liquid soft medium, the extruding of hard screen to hard screen can be realized, complete do not produce bubble two piece elements between the flowing of equidistant flexible glue self-equilibrating, its use does not limit by screen size, in decrease temperature and pressure process thereafter, define upper and lower two panels transparent, apart from equal, there is no bubble, the transparent adhesive tape of the glue that can not overflow is fit, after confirmation non-defective unit is errorless, re-uses the sizing of powerful UV strong illumination light irradiation.The two-sided touching display screen using above novel process to produce is not easy to produce bubble, can accomplish to allow large-sized two panels veneer not have the concavo-convex difference of thickness apart from equal, does not have wood to receive existing picture, improves yield rate.The equipment manufacturing cost that this technique uses is low, has greatly saved production cost.
Two of the object of the invention is the two-sided touching display screen of full laminating providing a kind of manufacturing process of the two-sided touching display screen of full laminating according to realizing goal of the invention one to prepare.
The technical scheme realizing the object of the invention two is; the one prepared according to the manufacturing process of the two-sided touching display screen of full laminating realizing goal of the invention one is fitted two-sided touching display screen entirely; it comprises cover sheet, touch-control film inductor and display; described display two sides is all pasted with touch-control sensing film; described cover sheet is attached at touch-control sensing film outside surface; wherein, fitted by solid-state uv flexible glue between display and touch-control sensing film or between touch-control sensing film and cover sheet.
In order to better technique effect, the technical scheme of the object of the invention two can do following improvement:
1, described touch-control sensing film only a slice, it is coated on the positive and negative two sides of display or is coated on display surrounding.
Further, described touch-control sensing film is capacitance touching control sensor film or induction touch-control sensing film.
2, described touch-control sensing film comprises a transparent plastic film, transparent plastic film positive and negative are respectively arranged with transverse conductance film circuit and longitudinal conducting film circuit, and the output terminal of described transverse conductance film circuit and longitudinal conducting film circuit is welded with the flexible circuit board be connected with controller.
Further, the output terminal side of described transverse conductance film circuit and longitudinal conducting film circuit stretches out the bent lead-in wire being formed and be connected with controller, and described bent lead-in wire is attached at the display back side or any side of display; This design, without the need to welding FPC in addition, reduces technology difficulty and improves the reliability of touch-control sensing film.
3, described transparent plastic film half is furnished with capacitance touching control circuit, and half is furnished with induction touch control line, and capacitance touching control circuit is connected with controller respectively with the output terminal of induction touch control line or is connected with same controller.
4, described display has two, and fit mutually in two display back sides, described touch-control sensing film is attached at the front of two displays, forms two-sided touch-control double-sided display one screen.
The display screen two sides that goal of the invention two realizes all is pasted with contact panel, and realizes the full laminating of screen by solid-state uv flexible glue.When only having a display, pointing and would not cause interference to the display in front from screen back touch; When display has two, can according to separately independently system can carry out respectively manipulating the effective touch-control realizing full frame any position.When all wires and extension line are hidden into the back side of a display screen, or during the bonding back-to-back of two display screens, single piece type touch-control sensing film coated, in display surrounding, achieves effective touch-control of all surface, and what extend screen to greatest extent can touch-control scope.
Accompanying drawing explanation
Fig. 1 is the two-sided touching display screen structural representation of full laminating described in the embodiment of the present invention;
Fig. 2 is that the A-A of Fig. 1 is to cut-open view;
Fig. 3 is touch-control sensing membrane structure schematic diagram described in the embodiment of the present invention;
Fig. 4 is touch-control sensing film second example structure schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, present pre-ferred embodiments is described further.
Entirely the fit embodiment of two-sided touching display screen manufacturing process of the present invention is:
Embodiment 1:
A manufacturing process for the two-sided touching display screen of full laminating, it adopts bonding agent to be fitted mutually by the element arranged in turn and forms one, and described element comprises cover sheet 1, contact panel 2 and two displays 3, and each element laminating process comprises the following steps:
(1) fit in advance: first cover sheet 1 and touch-control sensing film 2 are fitted, two display phase backrest laminatings, then attach solid-state uv flexible glue 4 between touch-control sensing film 2 and display 3, form pre-laminating one screen; Described solid-state uv flexible glue thickness is 100 ~ 120 μm; Conventional binder is used to fit between cover sheet 1 and touch-control sensing film 2, two displays;
(2) deaeration: the element being pasted with solid-state uv flexible glue is put into still kettle deaeration 10 ~ 50min, controls pressure 0.5kg ~ 3kg in still kettle, temperature 30 ~ 40 DEG C;
(3) solidify: adopt powerful UV irradiation light to carry out strong illumination to transparent adhesive tape zoarium, allow solid-state uv flexible glue solidify thus to fit together with each element.
Embodiment 2-3:
Adopt the preparation method identical with embodiment 1, the respective value that difference is to use respectively thickness, pressure and temperature in pre-laminating listed in table 1 and deaeration step to replace embodiment 1 to adopt.
Table 1
In embodiment, then mobility is inadequate lower than 100 μm for solid-state uv flexible glue thickness, easily produces thickness poor, if thickness is higher than 300 μm, mobility is too full easily produces the glue that overflows.If temperature and pressure are lower than limit value, solid-state uv flexible glue and each element are not easily fitted; Temperature 30 ~ 65 DEG C, pressure 0.5 ~ 10kg inclined heated plate 10 ~ 250 minutes in de-aeration, if numerical value is higher than limit value, this resin is easily softening and cause excessive glue, equally also can produce thickness difference and produce simple-minded phenomenon.Can produce according to choosing suitable parameter in the above-mentioned numerical intervals that do not coexist of screen size in actual production process.
The two-sided touching display screen structure of full laminating adopting above-mentioned technique obtained as shown in Figure 1 to Figure 3; it comprises cover sheet 1, touch-control film inductor 2 and two displays 3; described touch-control sensing film 2 only a slice; two opposing laminatings of display 3; touch-control sensing film 2 is coated on two display surroundings; described touch-control sensing film 2 outside surface is pasted with cover sheet 1, wherein, is fitted between display 3 and touch-control sensing film 2 by solid-state uv flexible glue 4.
As shown in Figure 3, described touch-control sensing film 2 is induction touch-control sensing film, and it comprises a transparent plastic film 21, and transparent plastic film 21 positive and negative are respectively arranged with transverse conductance film circuit 22 and longitudinal conducting film circuit 23; The output terminal side of described transverse conductance film circuit 22 and longitudinal conducting film circuit 23 stretches out the bent lead-in wire 24 being formed and be connected with controller (not shown); Described lead-in wire 24 bends between rear embedding two displays.
The display quantity that the present invention fits in two-sided touching display screen is entirely not limited to described in embodiment, when display is one, forms the two-sided touch control integrated screen of one side display.
The material of described transverse conductance film circuit and longitudinal conducting film circuit be copper, aluminium, gold, silver or conductive carbon paste any one.
Described touch-control sensing film can also be induction touch-control sensing film for capacitance touching control sensor film or half are capacitance touching control sensor film half; As shown in Figure 4, described touch-control sensing film 2 comprises a transparent plastic film 21, and transparent plastic film 21 half is furnished with induction touch control line, and half is furnished with capacitance touching control circuit; The transverse conductance film circuit 25 of induction touch control line and the output terminal side of longitudinal conducting film circuit 26 stretch out and form bent lead-in wire 241, and the transverse conductance film circuit 27 of capacitance touching control circuit and the output terminal side of longitudinal conducting film circuit 28 stretch out and form bent lead-in wire 242; Embed after described lead-in wire 241,242 bends between two displays and be also connected with controller (not shown) respectively.In actual production, lead-in wire 241,242 is connected with same controller after also can gathering.
The capacitance touching control mode of the two-sided touching display screen of full laminating that the present invention realizes very applicable hand quick sliding searching information material, and the very applicable project planner of inductive touch control mode, cartoon designer design by pointer.Capacitance touching control induction or electric magnetic induction type touch-control sensing directly do not contact with touch sensible pick-up unit across cover sheet due to hand or felt pen; avoid electric resistance touch-control induction and must carry out direct conducting with pressure; the defect of easy physical damage, improves whole touch-control sensing system lifetim.Wherein electric magnetic induction type touch-control sensing carrys out conducting touch point ratio capacitance touch control manner near the circuit of touch-control sensing film by changes of magnetic field owing to adopting the vigour of style in writing of magnetic pen, touch accuracy is higher, be more suitable for for style of writing design, particularly trickle engineering design, cartoon design.The circuit pattern of capacitance touching control sensor film or induction touch-control sensing film designs according to needs of production, and therefore not to repeat here.
Lead-in wire is attached in display side in the embodiment of the present invention, goes between in actual production and also can be hidden into display side, and be electrically connected with the controller of display interior; The present invention also can be welded with flexible circuit board at the output terminal of described transverse conductance film circuit and longitudinal conducting film circuit, but directly extend lead-in wire be connected with controller more stable.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent flow process conversion utilizing description of the present invention to do, or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. the manufacturing process of two-sided touching display screen of entirely fitting; it adopts bonding agent to be fitted mutually by the element arranged in turn and forms one; described element comprises cover sheet, touch-control sensing film and display; described display two sides is all pasted with touch-control sensing film; described cover sheet is attached at touch-control sensing film outside surface; it is characterized in that, each element laminating process comprises the following steps:
(1) fit in advance: describedly to fit in following A, B two kinds of laminating types any one in advance:
A, first by display and touch-control sensing film adhered, then between touch-control sensing film and cover sheet, attach solid-state uv flexible glue, form pre-laminating one screen;
B, first by cover sheet and touch-control sensing film adhered, then between touch-control sensing film and display, attach solid-state uv flexible glue, form pre-laminating one screen;
Wherein, described solid-state uv flexible glue thickness is 100 ~ 300 μm;
(2) deaeration: still kettle deaeration 10 ~ 250min put into by one screen by fitting in advance, controls pressure 0.5kg ~ 10kg in still kettle, temperature 30 ~ 65 DEG C;
(3) solidify: adopt powerful UV irradiation light to carry out strong illumination to transparent adhesive tape zoarium.
2. the manufacturing process of the two-sided touching display screen of full laminating according to claim 1, is characterized in that, described touch-control sensing film only a slice, it is coated on the positive and negative two sides of display or is coated on display surrounding.
3. the manufacturing process of the two-sided touching display screen of full laminating according to claim 2, it is characterized in that, described touch-control sensing film is capacitance touching control sensor film or electric magnetic induction type touch-control sensing film or half be capacitance touching control sensor film half is induction touch-control sensing film.
4. the two-sided touching display screen of full laminating of technique acquisition according to claim 1; it comprises cover sheet, touch-control film inductor and display; it is characterized in that; described display two sides is all pasted with touch-control sensing film; described cover sheet is attached at touch-control sensing film outside surface; wherein, fitted by solid-state uv flexible glue between display and touch-control sensing film or between touch-control sensing film and cover sheet.
5. the two-sided touching display screen of full laminating according to claim 4, is characterized in that, described touch-control sensing film only a slice, it is coated on the positive and negative two sides of display or is coated on display surrounding.
6. the two-sided touching display screen of full laminating according to claim 4 or 5, it is characterized in that, described display has two, and fit mutually in two display back sides, described touch-control sensing film is attached at the front of two displays.
7. the two-sided touching display screen of full laminating according to claim 6, is characterized in that, described touch-control sensing film is capacitance touching control sensor film or induction touch-control sensing film.
8. the two-sided touching display screen of full laminating according to claim 7, it is characterized in that, described touch-control sensing film comprises a transparent plastic film, transparent plastic film positive and negative are respectively arranged with transverse conductance film circuit and longitudinal conducting film circuit, and the output terminal of described transverse conductance film circuit and longitudinal conducting film circuit is welded with the flexible circuit board be connected with controller.
9. the two-sided touching display screen of full laminating according to claim 8, it is characterized in that, described transparent plastic film half is furnished with capacitance touching control circuit, half is furnished with induction touch control line, and capacitance touching control circuit is connected with controller respectively with the output terminal of induction touch control line or is connected with same controller.
10. the two-sided touching display screen of full laminating according to claim 8, is characterized in that, the output terminal side of described transverse conductance film circuit and longitudinal conducting film circuit stretches out the bent lead-in wire being formed and be connected with controller; Described bent lead-in wire is attached at the display back side or any side of display.
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| CN105117093A (en) * | 2015-09-15 | 2015-12-02 | 深圳市华鼎星科技有限公司 | Electromagnetic touch display device |
| CN107515693A (en) * | 2017-08-22 | 2017-12-26 | 信利光电股份有限公司 | A kind of touching display screen and electronic equipment |
| CN109002213A (en) * | 2018-07-25 | 2018-12-14 | 信利光电股份有限公司 | A kind of applying method and touch panel of touch panel |
| CN109388270A (en) * | 2017-08-11 | 2019-02-26 | 深圳天珑无线科技有限公司 | A kind of terminal with flexible screen |
| CN109639859A (en) * | 2018-12-17 | 2019-04-16 | Oppo广东移动通信有限公司 | Double-sided screen cover board and its manufacturing process, touching display screen, terminal device |
| CN109782945A (en) * | 2018-12-19 | 2019-05-21 | 江西合力泰科技有限公司 | A kind of touch screen applying method and touch screen that can reduce pressing water ripples |
| CN110390882A (en) * | 2018-04-20 | 2019-10-29 | Oppo广东移动通信有限公司 | Method, electronic device and its Curved screen of flexible screen are bonded in curved surface base |
| US11260638B2 (en) | 2019-08-29 | 2022-03-01 | Shpp Global Technologies B.V. | Transparent, flexible, impact resistant, multilayer film comprising polycarbonate copolymers |
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| CN109782945A (en) * | 2018-12-19 | 2019-05-21 | 江西合力泰科技有限公司 | A kind of touch screen applying method and touch screen that can reduce pressing water ripples |
| US11260638B2 (en) | 2019-08-29 | 2022-03-01 | Shpp Global Technologies B.V. | Transparent, flexible, impact resistant, multilayer film comprising polycarbonate copolymers |
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Application publication date: 20150729 |