CN104656998A - Full lamination bent touch display screen and manufacturing process thereof - Google Patents
Full lamination bent touch display screen and manufacturing process thereof Download PDFInfo
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- CN104656998A CN104656998A CN201510123541.8A CN201510123541A CN104656998A CN 104656998 A CN104656998 A CN 104656998A CN 201510123541 A CN201510123541 A CN 201510123541A CN 104656998 A CN104656998 A CN 104656998A
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Abstract
The invention discloses a process for manufacturing a full lamination bent touch display screen. The process comprises the following steps: laminating ultrathin glass, a touch film, an OLED display and an organic glass plane into a pre-laminated integrated screen by adopting a solid-state ultraviolet flexible adhesive, performing single-sided heating and hot bending molding onto the pre-laminated integrated screen on a hot bending device, defoaming in a still kettle, curing by using a high-power UV illuminating lamp, and finally, sealing and molding. The process is simple, the yield and product stability are high, the production efficiency is greatly improved, and the service life of the product is prolonged. The prepared full lamination bent touch display screen has the performance of scratch resistance and fully shielded interference resistance, has arc-shaped view field and viewing angle and a convenient touch function and is particularly applied to the application field of automobile instrument panels, vehicle-mounted navigation screens, outdoor display screens and various full lamination bent touch display screens.
Description
Technical field
The present invention relates to touching display screen technical field, particularly relate to the bending touching display screen of a kind of full laminating and manufacturing process thereof.
Background technology
Bending display screen comprises to inner arc and to outer arc two kinds.The display screen of display screen relative to plane is bent to inner arc, it can provide broad full-view image effect towards user side to the cambered design surrounded, because on screen, any point is equal with eye distance, object no matter in screen appears at center or edge, all can not deform, and also reducing the degree of distortion that angular distance is uneven when closely watching, spectators more can be made to be immersed among picture excellent true to nature physically and mentally, bring truer more comfortable perception to spectators; In contrast, the screen of advertisement machine, in order in limited space, allows more people see advertisement from different angle Dou Neng Cheongju Chu, adopts the screen of outer camber.
Existing manufacture normally attaches touch-control film to inner arc with to the method for outer arc touch-control curved screens on heat-bending glass, and the method exists pastes touch control film difficulty in process on curved glass, easily produces the defect of bubble.Separately have the acting force of pullling directly utilizing film to realize the bending of ultra-thin cover glass, or be bonded on curved metal framework by thin display screen adhesive, its manufacture difficulty is higher; yield rate is low; less stable, along with the increase of service time, the flexibility of display screen also can change.Because bend protection glass is all adopt process black frame, frame pastes double sticky tape and fits on bent frame again, the way that namely frame pastes fits together.Frame paste product because and between display screen, to have gap to make image blurring, easily tie mist, mouldy, and frame pastes because bonding plane is little, bonding force is weak easily to come off.
Summary of the invention
An object of the present invention is to provide a kind of full laminating bending touching display screen manufacturing process.
The technical scheme realizing the object of the invention one is: the bending touching display screen manufacturing process of a kind of full laminating, and it comprises the following steps:
1) plane is fitted in advance: adopt solid-state uv flexible glue ultra-thin glass, touch-control film, OLED display and organic glass to be fitted in advance, the thickness of described solid-state uv flexible glue is 100 ~ 300 μm; The coating squence of described touch-control film, organic glass and ultra-thin glass is not limit, and OLED display can not be positioned at the most top layer of final finished; Not only can improve the surperficial scratch resistance of element when ultra-thin cover glass is positioned at most top layer, and ultra-thin glass surface more easily carries out, and AG is anti-dazzle, the high antireflection of AR, AF oil-stain-preventing, anti-fingerprint surface working;
2) hot bending: any side, positive and negative that the one posted in advance is shielded is positioned over one side on bending apparatus and heats and carry out hot bending, hot bending temperature is 40 ~ 80 DEG C, and the time is 1 ~ 60min, and radian is 5 ~ 100; Described bending apparatus is dull and stereotyped with the heating of heat generating components bottom one; Pre-laminating one screen is utilized to be placed on the characteristic that panel heater can upwards arch upward after heating automatically, the front of one screen of fitting in advance or reverse side are placed on heated plate, just can realize 0LED panel to inner arc or to outer arc: one side is heated and poly (methyl methacrylate) plate can be made to be that main pre-laminating is shielded, because of one side expanded by heating, and nature is to arching up into required flexibility; Bian Change hot face, can realize the Inner arc of panel and outer lonely editing objective;
3) deaeration: the screen of fitting in advance is put into still kettle deaeration 10 ~ 250min, controls pressure 0.5kg ~ 10kg in still kettle, temperature 30 ~ 65 DEG C; Conventional vacuum centrifugal defoaming is difficult to carry out deaeration to the one screen after bending, and still kettle inner space is large, be well suited for carrying out deaeration to the one screen after bending, in still kettle, even the components and parts after bending also can pressurized even, its de-aeration is stablized, ensure that solid-state uv flexible glue thickness is even, make by the spacing of 2 transparent elements of fitting identical, the moire fringes produced due to glue-line became uneven when overcoming traditional liquid glue laminating, deaeration is satisfactory for result;
4) solidify: adopt powerful UV irradiation light to carry out strong illumination to the curved transparent veneer formed after deaeration, allow solid-state uv flexible glue solidify thus to fit together with each element, form one screen;
5) edge sealing: edging, polishing are carried out, spray containment coating post-drying to the edge of the bending one screen after solidification.
In order to better technique effect, goal of the invention one technical scheme can also do following improvement:
1, plate ITO conducting film in the positive and negative of the one screen posted in advance, and by two pieces of ITO conducting films ground connection simultaneously, then carry out hot bending.Finished product is made to possess the jamproof performance of full-shield.
2, solid-state uv flexible glue can also be used to be fitted on an arc hard back shroud by bending one screen still flexible and flexible after hot bending, after making radian more precisely, carry out deaeration again.
3, the material of described arc hard back shroud be in metal, plastics, pottery or glass any one.
The present invention adopts solid-state uv flexible glue to be that bonding agent coordinates the plane of each element to fit, the technique of Low Temperature Thermal roll forming, still kettle deaeration, realize the OLED display screen of non-refractory and the full laminating of other components and parts, then to be heated hot bending by accurate dull and stereotyped one side, coordinate still kettle deaeration again, finally again it is cured, achieve 0LED entirely fit screen low temperature, bubble-free, high finished product rate full laminating bent safety.Its technique is simple, yield rate and finished product stability high, substantially increase the serviceable life of production efficiency and product.
Two of object of the present invention is to provide a kind of full laminating bending touching display screen, it is obtained by the manufacturing process of goal of the invention one, it comprises display screen body, and described display screen body comprises by the ultra-thin glass of solid-state uv flexible glue application of a surface, touch-control film, OLED display and organic glass; The coating squence of described touch-control film, organic glass and ultra-thin glass is not limit, and OLED display can not be positioned at the most top layer of final finished.
Further, the positive and negative of described display screen body are coated with ITO conducting film, two pieces of ITO conducting films ground connection simultaneously.
Further, display screen body comprises by the touch-control film of solid-state uv flexible glue application of a surface, OLED display and two blocks of organic glass; The coating squence of described two blocks of organic glass and touch-control film is not limit; OLED display can not be positioned at the most top layer of final finished.
The full laminating that goal of the invention two realizes bends touching display screen and possesses scratch resistance, the jamproof performance of full-shield, and it has the visual angle, the visual field of arc, touch controllable function easily, is especially applicable to the various curved surface full sticking touch control display applications fields such as automobile instrument panel, vehicle mounted guidance screen, outdoor display screen.
Accompanying drawing explanation
Fig. 1 is the structural representation of the bending touching display screen of laminating complete described in the embodiment of the present invention;
Fig. 2 is hot bending step schematic diagram in the bending touching display screen manufacturing process of laminating complete described in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, present pre-ferred embodiments is described further.
As shown in Figure 1, the bending touching display screen of a kind of full laminating, it comprises display screen body 1, and described display screen body 1 comprises by the ultra-thin glass 11 of solid-state uv flexible glue 10 order application of a surface, touch-control film 12, OLED display 13 and organic glass 14; The positive and negative of described display screen body 1 are coated with ITO conducting film 15, two pieces of ITO conducting films 15 ground connection simultaneously.
The embodiment of the hermetically sealed anti-interference Touch-control liquid crystal display screen manufacturing process of the present invention is:
Embodiment 1:
The bending touching display screen manufacturing process of a kind of full laminating, it comprises the following steps:
1) fit in advance: adopt solid-state uv flexible glue 10 overlapping for order ultra-thin glass 11, touch-control film 12, OLED display 13 and organic glass 14 plane to be fitted in advance; The thickness of described solid-state uv flexible glue is 100 ~ 300 μm;
2) ITO conducting film is plated in the positive and negative of the one screen posted in advance, and by two pieces of ITO conducting films ground connection simultaneously;
3) hot bending: as shown in Figure 2, one plane posted in advance screen is positioned over one side on bending apparatus and heats and carry out hot bending, and hot bending temperature is 40 ~ 55 DEG C, and the time is 1 ~ 20min, and radian is 5 ~ 30; Described bending apparatus comprises heating dull and stereotyped 2, and the bottom of heating dull and stereotyped 2 is with heat generating components 3;
4) deaeration: the screen of fitting in advance is put into still kettle deaeration 10 ~ 50min, controls pressure 0.5kg ~ 3kg in still kettle, temperature 30 ~ 40 DEG C;
5) 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, form one screen;
6) edge sealing: edging, polishing are carried out, spray containment coating post-drying to the edge of the one screen after hot bending.
The edging that the still kettle of complete each element, solid-state uv flexible glue, gasket coating and the technological process use bending touching display screen of fitting of composition, the heating flat board of bending apparatus, heat generating components, edge sealing process use, polissoir are prior art, and therefore not to repeat here.
Embodiment 2-5:
Adopt the preparation method identical with embodiment 1, the respective value that difference is to use respectively thickness, pressure, temperature, time and flexibility in pre-laminating listed in table 1, deaeration and hot bending step to replace embodiment 1 to adopt.
Table 1
In embodiment, then mobility is inadequate lower than 50 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 ~ 250min in de-aeration, if numerical value is higher than limit value, this resin easily softens, and easily overflow glue, equally also can produce thickness difference and produce simple-minded phenomenon; The thickness of touch-control film, ultra-thin glass, organic glass is blocked up, is unfavorable for bending; In hot bending step, hot bending temperature is 40 ~ 80 DEG C, and the time is 1 ~ 60min, if numerical value is higher than limit value, can curved transitions damage element, and if numerical value is lower than limit value, element is not flexible.Suitable manufacturing parameter is selected according to screen size and flexibility in actual production.
What the embodiment of the present invention realized is bend display screen to inner arc, if the one screen that upset plane posts in advance carries out hot bending, product is for bend display screen to outer arc.
Bonding agent when each element of the present invention is fitted is solid-state uv flexible glue, solid-state uv flexible glue can at not gassing last volume slabbing when solid-state, under steam pressure high temperature not only but also have the such mobility balance of liquid glue, can firmly to hard extrusion, and allow flexible glue laminating evenly be attached on glass surface, after confirmation does not have the defective productss such as bubble, finally use UV strong illumination again, make laminating transparent body solidifying and setting; It combines liquid and solid-state strong point, and production cost is compared than above two kinds of form article of manufacture, cheap and yield rate is high.
Pre-laminating in present invention process process can adopt sheet laminator to fit, and web-like laminator also can be used to fit; Described heating flat board is indeformable material after metal, glass or pottery etc. are heated; Described heat generating components is heating wire or other heatable equipment.
Solid-state uv flexible glue can also be used in present invention process process to be fitted on an arc hard back shroud by bending one screen still flexible and flexible after hot bending, after making radian more precisely, carry out deaeration again; Meanwhile, the coating squence of described touch-control film, organic glass and ultra-thin glass is not limit, but OLED display can not be positioned at the most top layer of display screen body.
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 (9)
1. a manufacturing process for the bending touching display screen of full laminating, it is characterized in that, it comprises the following steps:
1) plane is fitted in advance: adopt solid-state uv flexible glue ultra-thin glass, touch-control film, OLED display and organic glass plane to be fitted in advance, the thickness of described solid-state uv flexible glue is 100 ~ 300 μm; The coating squence of described touch-control film, organic glass and ultra-thin glass is not limit, and OLED display can not be positioned at the most top layer of final finished;
2) hot bending: any side, positive and negative that the one posted in advance is shielded is positioned over one side on bending apparatus and heats and carry out hot bending, hot bending temperature is 40 ~ 80 DEG C, and the time is 1 ~ 60min, and radian is 5 ~ 100; Described bending apparatus is dull and stereotyped with the heating of heat generating components bottom one;
3) deaeration: the screen that hot bending is good is put into still kettle deaeration 10 ~ 250min, controls pressure 0.5kg ~ 10kg in still kettle, temperature 30 ~ 65 DEG C;
4) solidify: adopt powerful UV irradiation light to carry out strong illumination to the transparent adhesive tape zoarium formed after deaeration, allow solid-state uv flexible glue solidify thus to fit together with each element, form one screen;
5) edge sealing: edging, polishing are carried out, spray containment coating post-drying to the edge of the bending one screen after solidification.
2. full laminating according to claim 1 bends the manufacturing process of touching display screen, it is characterized in that, plates ITO conducting film in the positive and negative of the one screen posted in advance, and by two pieces of ITO conducting films ground connection simultaneously, then carries out hot bending.
3. the full laminating according to claim 1 bends the manufacturing process of touching display screen, it is characterized in that, uses solid-state uv flexible glue to be fitted on an arc hard back shroud by bending one screen still flexible and flexible after hot bending.
4. full laminating according to claim 3 bends the manufacturing process of touching display screen, it is characterized in that, the material of described arc hard back shroud is any one in metal, plastics, pottery or glass.
5. full laminating according to claim 1 bends the manufacturing process of touching display screen, it is characterized in that, described heating flat board is metal, glass or pottery.
6. full laminating according to claim 1 bends the manufacturing process of touching display screen, it is characterized in that, described heat generating components is heating wire or other heatable equipment.
7. a bending touching display screen of entirely fitting, it is obtained by the manufacturing process of claim 1, it comprises display screen body, it is characterized in that, described display screen body comprises by the ultra-thin glass of solid-state uv flexible glue application of a surface, touch-control film, OLED display and organic glass; The coating squence of described touch-control film, organic glass and ultra-thin glass is not limit, and OLED display can not be positioned at the most top layer of final finished.
8. laminating according to claim 7 bends touching display screen, it is characterized in that, the positive and negative of described display screen body are coated with ITO conducting film, two pieces of ITO conducting films ground connection simultaneously.
9. bend touching display screen according to the laminating according to claim 7 or 8, it is characterized in that, display screen body comprises by the touch-control film of solid-state uv flexible glue application of a surface, OLED display and two blocks of organic glass; The coating squence of described organic glass and touch-control film is not limit, and OLED display can not be positioned at the most top layer of final finished.
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| CN106200037A (en) * | 2016-07-06 | 2016-12-07 | 宁波维真显示科技有限公司 | The full laminating apparatus of piecemeal of touch screen and LCDs and method |
| CN106293215A (en) * | 2016-08-03 | 2017-01-04 | 深圳市迪瑞特科技有限公司 | Full sticking touch control display screen containing center and preparation method thereof and contactor control device |
| CN106371652A (en) * | 2015-07-21 | 2017-02-01 | 松下航空电子公司 | Scratch resistant layer of ultra-thin glass on substrate for touch sensitive display |
| CN106739415A (en) * | 2016-12-12 | 2017-05-31 | 晟光科技股份有限公司 | A kind of implementation method of improved full attaching process |
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| CN106371652A (en) * | 2015-07-21 | 2017-02-01 | 松下航空电子公司 | Scratch resistant layer of ultra-thin glass on substrate for touch sensitive display |
| CN106200037A (en) * | 2016-07-06 | 2016-12-07 | 宁波维真显示科技有限公司 | The full laminating apparatus of piecemeal of touch screen and LCDs and method |
| CN106200037B (en) * | 2016-07-06 | 2019-03-29 | 宁波维真显示科技股份有限公司 | The full laminating apparatus of the piecemeal of touch screen and liquid crystal display and method |
| CN106293215A (en) * | 2016-08-03 | 2017-01-04 | 深圳市迪瑞特科技有限公司 | Full sticking touch control display screen containing center and preparation method thereof and contactor control device |
| CN106739415A (en) * | 2016-12-12 | 2017-05-31 | 晟光科技股份有限公司 | A kind of implementation method of improved full attaching process |
| CN108726994A (en) * | 2017-05-19 | 2018-11-02 | 宁波健立电子有限公司 | A kind of composite ceramics cover board and its manufacturing method |
| CN108726994B (en) * | 2017-05-19 | 2021-10-08 | 宁波健立电子有限公司 | Composite ceramic cover plate and manufacturing method thereof |
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| US10826014B2 (en) | 2017-10-31 | 2020-11-03 | Yungu (Gu'an) Technology Co., Ltd. | Curved-surface display screen and method for assembling the same |
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| CN108845691A (en) * | 2018-05-24 | 2018-11-20 | 业成科技（成都）有限公司 | Twin shaft curved surface touch panel and its manufacturing method |
| CN108845691B (en) * | 2018-05-24 | 2021-10-26 | 业成科技（成都）有限公司 | Biaxial curved surface touch panel and manufacturing method thereof |
| CN108735106A (en) * | 2018-07-12 | 2018-11-02 | 武汉华星光电半导体显示技术有限公司 | Flexible OLED display panel and preparation method thereof |
| CN108563369A (en) * | 2018-07-19 | 2018-09-21 | 牧东光电科技有限公司 | A kind of bending touch display screen and preparation method thereof |
| CN108962018A (en) * | 2018-09-05 | 2018-12-07 | 苏州添易朗科技有限公司 | The method and one screen that a kind of flat glass and curved-surface display mould group are bonded entirely |
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| CN110669449A (en) * | 2019-09-12 | 2020-01-10 | 东莞市宏凯光电有限公司 | Full-pasting touch screen and production process thereof |
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| CN112652243A (en) * | 2020-12-09 | 2021-04-13 | 深圳一鑫新材料有限公司 | Four-side curved display screen laminating process |
| CN113524697A (en) * | 2021-07-27 | 2021-10-22 | 深圳市中联讯科技有限公司 | Screen manufacturing process |
| CN114114739A (en) * | 2021-11-30 | 2022-03-01 | 曲面超精密光电(深圳)有限公司 | Method for manufacturing vehicle-mounted curved screen by innovative process |
| CN114114739B (en) * | 2021-11-30 | 2024-01-09 | 曲面超精密光电(深圳)有限公司 | Manufacturing method of vehicle-mounted curved surface screen |
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