CN103969861A - Display device and assembling method - Google Patents
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- CN103969861A CN103969861A CN201310037658.5A CN201310037658A CN103969861A CN 103969861 A CN103969861 A CN 103969861A CN 201310037658 A CN201310037658 A CN 201310037658A CN 103969861 A CN103969861 A CN 103969861A
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Abstract
The invention relates to a multilayer display device and a manufacturing method thereof. In the embodiment, the multilayer display device comprises an optical transparent bonding layer of a flexible bonding performing piece and a non-flexible second base, wherein the flexible bonding performing piece is adhered to the surface of a non-flexible base; the non-flexible second base passes through an optical transparent bonding film with uniform thickness and is mounted on an optical transparent flexible film. According to the method, no bubble is basically formed between the transparent bonding layer and a non-flexible first base, and no bubble is basically formed in the bonding film between the second base and the flexible film. In the embodiment, a groove is formed in the surface of the transparent flexible film, so that a liquid binding agent flows in the groove and forms uniform thickness on the film. According to the invention, a transparent cover plate or a touch tablet of a mobile phone is adhered to LCD equipment or other flat-panel displays without forming bubbles in the gluing process. Compared with the existing method, with adoption of the multilayer display device manufacturing method disclosed by the invention, better and more reliable yield is provided, a faster assembling method is provided, and the assembling method can be implemented by first-tier suppliers or OEM (original equipment manufacturers).
Description
Technical field
The application relates to the method stacked, Multi-level display device of assembling.
Background technology
Display device is used widely as LCD.Conventionally, on the surface of LCD unit, be laminated with tempered glass, transparent plastic overlayer, touch interface or touch-screen.
Relate to interface layer adopting in for example comprising the multilayer system of plastic membranous layer, ITO layer, bonding coat, glassy layer etc., the optical property of this interface layer may be influenced due to the bubble forming in reflection and laminating process.Conventionally by the mode with optically clear adhesive (OCA) combination, cover plate, touch-screen or other overlayer are connected with LCD unit.OCA can be liquid adhesive or double-sided pressure-sensitive adhesive agent (PSA) adhesive tape of in-situ solidifying.For example, in existing assemble method, the two-sided OCA tape applications through cross cutting, in LCD or top board, is then forced together LCD and top board.But, realizing without stacked being difficult to of bubble between bonding agent and substrate, especially true for large scale article, and this bubble may cause the optical defect on display pannel mass formation impact.In addition, stiff base or panel are especially difficult to realize with another stiff base or panel bubble-free laminating.
Therefore, using in the multilayer system of two-sided OCA adhesive tape, need to carry out rearmounted processing so that bubble is removed from the interface between two substrates, this rearmounted processing is generally the autoclaving that uses heat and pressure to combine.Other is processed by using vacuum laminated mode to attempt to eliminate entrapped air pockets, thereby has avoided rearmounted treatment step.But these processing are consuming time, and production efficiency is low.
Therefore it may be useful, providing the technical scheme that overcomes the problems referred to above.
Summary of the invention
The present invention relates to Multi-level display device and manufacture the method for this device.
Compared with existing assembly method, method of the present invention provides better and more reliable output, assembly method (not batch processing) faster, and can be by Tier One supplier or OEM(Original Equipment Manufacturer) carry out, instead of carried out by LCD or touch panel manufacturers.
In embodiments of the present invention, Multi-level display device comprises: inflexibility the first substrate; Adhere to the optical clear bonding coat of the bonding preformed member of flexibility on the described surface of described inflexibility the first substrate, described optical clear bonding coat is arranged on optical clear flexible membrane; And inflexibility the second substrate, its optical clear bonding film by the uniform thickness between described inflexibility the second substrate and described the second side is mounted to described second side of described optical clear flexible membrane.The feature of Multi-level display device is also, between the optical clear bonding coat of the bonding preformed member of flexibility and the surface of inflexibility the first substrate, substantially there is no bubble, and substantially there is no bubble in the optical clear bonding film of uniform thickness between the second substrate and flexible membrane.
In some embodiments, Multi-level display device is a kind of medium, and the optical clear bonding film in the second side of flexible membrane is formed in this medium with liquid form.In other embodiments, the optical clear bonding film in the second side of the flexible membrane of Multi-level display device is curing solid-state form.In other embodiments, optical clear flexible membrane also comprises outward flange and groove, and described groove is positioned at described the second side and extends near described outward flange.Further, the degree of depth of groove is the half of described optical clear flexible membrane thickness.
The present invention also provides the method for the manufacture of Multi-level display device.The method comprises:
A) the optical clear bonding coat of the bonding preformed member of flexibility is fixed to the surface of inflexibility the first substrate, the bonding preformed member of described flexibility comprise there is the first side, the second side and outer peripheral optical clear flexible membrane, described optical clear bonding coat be arranged in described first side of described optical clear flexible membrane and described the second side by with the contiguous peripheral part of described outward flange around the part that limits of middle body;
B) optical transparent liquid bonding agent is assigned to the described middle body of described the second side;
C) inflexibility the second substrate is arranged on described liquid adhesive, thereby make described bonding agent flow to the described outward flange of described optical clear flexible membrane from described middle body, to make described liquid adhesive form even thickness film, and substantially there is no bubble between described optical clear flexible membrane and the second substrate of described inflexibility; D) solidify described liquid adhesive to form solid adhesive layer.
In other embodiments, optical clear flexible membrane also comprises outward flange and groove, and groove is positioned at described the second side and extends near described outward flange, and step c) comprise make liquid adhesive flow into described groove and along described groove flow.
Brief description of the drawings
With reference to the accompanying drawings embodiments of the present invention are described, wherein accompanying drawing is only for exemplary purpose.In institute's drawings attached, same reference numbers is indicated same or similar parts.The present invention can also have other embodiment, maybe can be realized or be implemented by alternate manner.
Fig. 1 is according to the schematic cross sectional views of the display device of embodiment of the present invention;
Fig. 2 is the exploded view of the display device shown in Fig. 1;
Fig. 3-9 show the display device of the step shop drawings 1 of the method according to this invention, wherein:
Fig. 3 is the schematic cross sectional views of the bonding preformed member before installing;
Fig. 4 is the schematic cross sectional views of the bonding preformed member that is connected with the first substrate;
Fig. 5 is schematic cross sectional views that obtain, that be connected to the bonding preformed member of the first substrate along the line 5-5 of Fig. 5 A;
Fig. 5 A is the vertical view of the bonding preformed member of Fig. 5, wherein shows the lip-deep middle section and the contiguous peripheral part that are positioned at flexible membrane;
Fig. 6 is the schematic cross sectional views of optically clear adhesive (OCA) liquid obtained along the line 6-6 of Fig. 6 A, and wherein OCA liquid is distributed in the surperficial middle section of exposure of flexible membrane;
Fig. 6 A is the vertical view that is positioned at the OCA liquid of the middle section of flexible membrane;
Fig. 7 is the schematic cross sectional views that is arranged at the second substrate on OCA liquid;
Fig. 8 is another schematic cross sectional views that is arranged at the second substrate on OCA liquid, and wherein the second substrate is arranged on the flexible membrane of bonding preformed member, and OCA liquid flows to form layer between the second substrate and flexible membrane; And
Fig. 9 is the curing schematic cross sectional views of OCA liquid level.
Figure 10 shows the side cross-sectional view of the display device of another embodiment according to the present invention, and wherein, optical clear polymer film is configured to comprise groove;
Figure 10 A is the vertical view of Figure 10, optically clear adhesive liquid in polymer film middle section shown in this figure, and this polymer film has the groove arranging along its periphery/edge;
Side cross-sectional view when Figure 11 is the subsequent step having in the situation that the second substrate of being arranged on optically clear adhesive liquid and optically clear adhesive liquid flows into groove;
Figure 11 A is the vertical view along Figure 11 A-A line, the bearing of trend of optically clear adhesive liquid along groove shown in this figure.
Embodiment
With reference to the accompanying drawings illustrative embodiments of the present invention is described, this description is only illustrative rather than restrictive.
The invention provides stacked, Multi-level display device and manufacture the method for this display device.The method can be used for, and for example, in other application, the transparent cover plate of mobile phone or touch panel is bonded to flat-panel monitor (for example liquid crystal indicator), and front glass panel is bonded to ito glass or film.
" substantially there is not bubble " and mean in curing OCA film and do not exist than about 0.02mm in term
2the large bubble of microbubble, wherein curing OCA film is formed by OCA liquid and/or for example, forms between the bonding coat of bonding preformed member and the substrate being connected (the first substrate (display pannel)).
Use term " top ", " end ", "up" and "down" only for convenience and exemplary purpose, limit but not be intended to the description of this invention, because institute's reference object capable of interchanging positions.
Shown in the cut-open view of Fig. 1 and the exploded view of Fig. 2 according to the first embodiment of display device 10 of the present invention.Display device 10 can be for example panel display apparatus, mobile phone display device or the display for portable computing (as personal digital assistant PDA, smart mobile phone).Display device 10 can also be for example monitor, television indicator or other electronics or graphic alphanumeric display or interactive display device (as touch-screen display).Wherein, touch-screen display panel can be arranged on as the touch-screen display panel on the devices such as mobile phone, PDA, point-of-sale systems, household electrical appliance.The shape of display device 10 and thickness can change.In the present embodiment, display device 10 be shaped as rectangle.
Display device 10 comprises inflexibility (rigidity) the first substrate 12.The first substrate 12 has contrary first surface 14 and second surface 16.In some embodiments, inflexibility the first substrate 12 is flat or bending display pannels, for example comprise reflective, transmission-type or semi permeable type liquid crystal display (LCD) panel, plasma display device, glass sheet or other display pannel, wherein, glass sheet has patterned conductor (as trace and electrode), and patterned conductor forms and is bonded in glass sheet (" ito glass ") by sputter and the metal pattern of tin indium oxide (ITO).First surface 14 or the second surface 16 of the first substrate 12 generally include glass or plastic-substrates.
Flexible bonding preformed member 18 bonding (for example, stacked) is to the first surface 14 of inflexibility the first substrate 12, thereby makes substantially not exist between flexible bonding preformed member 18 and first surface 14 bubble.Bonding preformed member 18 comprises optical clear flexible membrane 20 and optical clear bonding coat 26.Flexible membrane 20 has the first contrary side 22 and the second side 24.The bonding coat 26 of optically clear adhesive material is positioned in the first side 22 of flexible membrane 20, and is connected with the first surface 14 of the first substrate 12.
According to a kind of embodiment, can make so bonding preformed member 18, for example, by using roll lamination machine that optical clear contact adhesive (OC PSA) 26(is positioned on supporting body 28) be stacked and placed on flexible membrane 20, then the sheet material of formation like this is carried out to cross cutting, make its shape and size with for example, by corresponding the shape and size of connected substrate (first surface 14 of the first substrate 12).
Optical clear flexible membrane 20 can be formed by flexible and optically transparent (transparent) polymeric material, for example, can such as, be formed as dacron (polyethylene terephthalate (PET), PEN (PEN), polycarbonate (PC) etc.), polyimide (PI) etc. by plastic material.Optical clear bonding coat 26 can be formed by optically clear adhesive (OCA) material, for example can be by comprising that acrylate, silicone, polyurethane and analog form.The material that forms optical clear bonding coat 26, for example optical clear contact adhesive (OC PSA) can buy on market.Alternatively, as shown in Figure 3, bonding preformed member 18 can comprise disengaging sheet material or wadding 28(Fig. 3).This disengaging sheet material or wadding 28 are the overlayers that cover on bonding coat 26, thereby and are easy to be removed and make the surface 30 of bonding coat 26 be exposed to be connected to the first substrate 12.
In the embodiment shown, the second substrate 32 utilizes the second side 24 combinations of curing optical clear bonding film 36 and flexible membrane 20 at first surface 34 places, thereby forms stacked Multi-level display device 10.In embodiment, at the interior bubble that substantially do not exist of bonding film 36.Bonding film 36 can be formed by optically clear adhesive (OCA) liquid 36a.This optically clear adhesive (OCA) liquid 36a hardens to form solid adhesion film 36.OCA liquid for example can comprise acrylate, polyurethane, epoxy resin etc.In one embodiment, bonding film 36 can for example, be formed by curable liquid adhesive (36a) (UV curable adhesive liquid).Conventionally, curable binder liq 36a keeps liquid form before solidifying.In embodiment, bonding film 36 is solid form after solidifying.The thickness of bonding film 36 is variable.In some embodiments, the thickness of bonding film 36 is about 0.01-0.5mm, is about in other embodiments 0.05-0.1mm.
In embodiments of the present invention, the first substrate 12 of display device 10 can comprise display pannel, and the second substrate 32 can comprise optical clear (transparent) top board or lid or capacitive touch panels.
In other embodiments, the first substrate 12 of display device 10 can comprise optical clear top board or lid or capacitive touch panels, and the second substrate 32 can comprise display pannel.
For example, optical clear top board or lid can by glass or transparent plastic material (as polyacrylic resin, polycarbonate, polyethylene terephthalate (PET), poly-(methyl methacrylate) (PMMA) etc.) make.For example, capacitive touch panels (or plate or screen) can be installed to operate LCD panel.The thickness of plate/lid or touch panel can for example change according to device demand, plant bulk etc., and the scope of thickness is generally between approximately 50 μ m and approximately 500 μ m.In some embodiments, the outside surface of plate (for example, 16 or 38) can be covered by the membrane coat adding or stacking material (not shown), additional membrane coat or stacking material are such as low-reflection film, scratch resistance hard coat film, anti-glare film and/or anti-reflective film etc.
Preferably, each layer optically mates, thereby improves the optical characteristics of display system, and the performance impact that image is shown is minimized or substantially eliminate.Bonding preformed member 18 and bonding film 36 should not affect the second substrate 32(such as plate, touch panel etc.) transparency and reflection index or should not affect the observation to display pannel below.The layer (for example, 18,36) covering on display pannel preferably includes the material of index-matched, makes refractive index substantially similar.
Fig. 3-8 show the embodiment of the method for manufacturing the Multi-level display device 10 shown in Fig. 1-2.The method can be used to for example display is bonded to top board or lid, or front panel is bonded to ito glass layer or other sandwich constructions, and in assembling process, does not form bubble.
Fig. 3 showed before bonding preformed member 18 is laminated in to the first substrate 12, by supporting body or stripping film 28(in the situation that using) situation about removing from the surface 30 of bonding coat 26.
As shown in Figure 4, the surface 30 of the exposure of bonding coat 26 and the surface 14 of the exposure of the first substrate 12 contact.In the time that the surface 14 of bonding coat 26 and the first substrate 12 combines, the interface between the two may form bubble (microbubble).For fear of generate bubble in cohesive process, as shown in Figure 4, can be for example by by bonding preformed member 18 from 40aDao edge, the edge 40b roll extrusion of the first substrate on the surface 14 of the first substrate 12, thereby make the surface of the first substrate 12 and the surface of bonding preformed member 18 completely stacked.Flexible so bonding preformed member 18 is bonding with inflexibility the first substrate 12, makes substantially not exist between the two any bubble.For auxiliary and/or improve the combination of bonding preformed member 18 and the first substrate 12, conventionally can on bonding preformed member 18, apply lamination pressure by roll, for example, can apply about 1-4bar(20-60psi) pressure.Alternatively, for assisting and/or improve the combination of bonding preformed member 18 and the first substrate 12, also can apply certain heat, for example, make temperature be about 60 ° of C of 23 –, alternatively, make temperature be about 50-60 ° of C.
The bonding preformed member 18 being arranged in the first substrate 12 has been shown in Fig. 5.As shown in Fig. 5-5A, the second side 24 of flexible membrane 20 can be divided into middle section 42, peripheral part 44 and outward flange 46.The outward flange 46 of the contiguous flexible membranes 20 of peripheral part 44 is also limited by outward flange 46, and around or around middle section 42.
Referring now to Fig. 6, next, optically clear adhesive (OCA) the liquid 36a that the second substrate 32 is bonded to the first substrate 12 is for example distributed on the middle body of the second side 24 of the flexible membrane 20 of bonding preformed member 18 with the form of dripping shape or wire 42.Preferably, the refractive index of OCA liquid 36a and bonding preformed member 18 below and the refractive index matched of the second substrate 32.Liquid adhesive can be thermal curable adhesives, radiation-curable bonding agent or room-temperature-curable bonding agent, or can be ultraviolet (UV) curable adhesive material in a preferred embodiment.The amount that is distributed in the OCA liquid 36a on flexible membrane can the expectation thickness of OCA layer and the surface area of flexible membrane 20 and/or the first substrate 12 based on curing be calculated.In some embodiments, OCA liquid 36a for example with wire, for example, is distributed on flexible membrane 20 with linearity or slight curving wire.
As shown in Figure 7, the such as top board of inside surface 34(of the second substrate 32) carry out stacked in the face of the uncured OCA liquid 36a on flexible membrane 20.
Then the second substrate 32 reduce (along arrow ↓ ↓) upper to OCA liquid 36a, and be suspended on flexible membrane 20 or be arranged at a certain distance on flexible membrane 20, to form runner 48 between the second substrate 32 and flexible membrane 20.Described distance is determined by the expectation thickness of OCA layer 36.The outside surface 24 of the exposure of flexible membrane 20 and the inside surface 34 of the second substrate 32 all comprise the material that can be soaked by OCA liquid 36a.OCA liquid 36a can soak on the surface of flexible membrane 20 and the second substrate 32, and flow (along arrow ← → direction) to outward flange 46 from the middle section 42 of flexible membrane 20 by capillarity and/or by the pressure that puts on the second substrate 32, thereby do not form bubble in OCA liquid level 36a.Liquid outflows to edge 46 from central authorities 42, and bubble is shifted, and avoids thus entrapped air pockets in OCA liquid 36a layer.The proper viscosity of OCA liquid 36a is about 50-10000cps(ASTM D789, D4878).The layer of the OCA liquid 36a obtaining is not for substantially containing the layer of the even thickness of any bubble, and its thickness is in some embodiments about 0.01-0.5mm.
Referring now to Fig. 9, OCA liquid 36a layer solidifies, to form solid binder layer 36(as shown in Figure 1).In some embodiments, can at room temperature or by applying heat OCA liquid 36a be solidified.In a preferred embodiment, can use the curable OCA liquid of a kind of ultraviolet (UV), this liquid can be exposed to transmission (along arrow ↓ ↓) for example cross, under the UV radiation (, wavelength is about 100-400nm) of optical clear (transparent) the second substrate 32.In a preferred embodiment, the refractive index approximately 1.41 to approximately 1.51 of curing OCA layer 36.
With reference to Fig. 7, along with pressure being put on to curable liquid adhesive 36a, liquid adhesive 36a is at the surface of optical clear polymer film 20 24 vertical spreads, and has the possibility of overflowing edge 46.The device 10 of another embodiment ' in, as shown in Figure 10 and Figure 10 A, optical clear polymer film 20 ' comprise groove 50 ', groove 50 ' be positioned at from film 20 ' edge 46 ' a distance and extend into surface 24 '.Groove 50 ' can be formed in its surface by the form of cutting or in the time forming polymer film 20.For example, this groove can be cut in film by laser osculating (kiss-cutting) or the osculating with V-arrangement bladed tool.In one embodiment, groove can be V-arrangement (or inclined-plane), but also can be other shapes.Groove 50 ' the degree of depth (d) can change, and be preferably at least film 20 ' about half of thickness (t).Groove 50 ' effect be to avoid curable adhesive liquid 36a ' overflow edge 46 ', and by binder liq 36 ' redirect in bypass direction (, be parallel to edge 56 ' with the direction of arrow 52 ' represent) with make bonding agent towards edge 46 ' outwards spread equably and film 20 ' surface 24 ' on and until edge 46 ' formation uniform thickness.
Although illustrate and described specific implementations herein, it will be understood by those skilled in the art that any layout of considering in order to realize identical object can replace shown in embodiment.The application is intended to contain any adjustment or the variation according to described principle running of the present invention.Therefore, the present invention should be only by claims and be equal to restriction.The open of patent, list of references and the publication of quoting in the application is incorporated to herein by reference.
Claims (31)
1. display device, comprising:
There is the first substrate of surperficial inflexibility;
The optical clear bonding coat of flexible bonding preformed member, described optical clear bonding coat adheres to the described surface of described inflexibility the first substrate, the bonding preformed member of described flexibility comprises the optical clear flexible membrane with the first side and the second side, and described optical clear bonding coat is arranged at described first side of described optical clear flexible membrane;
Inflexibility the second substrate, is mounted to described the second side by the optical clear bonding film of the even thickness between described inflexibility the second substrate and described the second side,
Wherein, described optical clear flexible membrane also comprises outward flange and groove, and described groove is positioned at described the second side and extends near described outward flange.
2. display device as claimed in claim 1, is characterized in that, between the optical clear bonding coat of the bonding preformed member of described flexibility and the surface of described inflexibility the first substrate, does not have bubble.
3. display device as claimed in claim 1 or 2, is characterized in that, in the optical clear bonding film of described even thickness, does not have bubble.
4. display device as claimed in claim 3, is characterized in that, the thickness of the optical clear bonding film of described even thickness is 0.01-0.5mm.
5. display device as claimed in claim 1, is characterized in that, the described optical clear bonding film in the second side of described optical clear flexible membrane is liquid form.
6. display device as claimed in claim 1, is characterized in that, the described optical clear bonding film in the second side of described optical clear flexible membrane is curing solid form.
7. display device as claimed in claim 1, is characterized in that,
A) described inflexibility the first substrate comprises display, and described inflexibility the second substrate comprises optical lens isotropic disk or capacitive touch panels; Or
B) described inflexibility the first substrate comprises optical lens isotropic disk or capacitive touch panels, and described inflexibility the second substrate comprises display.
8. display device as claimed in claim 7, is characterized in that, described display is selected from liquid crystal display or plasma display.
9. display device as claimed in claim 7, is characterized in that, described optical clear top board is selected from touch pad, glass plate, plastic plate or has the substrate of glass of indium-tin oxide coatings.
10. for a medium for Multi-level display device, it is characterized in that comprising:
There is the first substrate of surperficial inflexibility;
The optical clear bonding coat of flexible bonding preformed member, described optical clear bonding coat adheres to the described surface of described inflexibility the first substrate, the bonding preformed member of described flexibility comprises the optical clear flexible membrane with the first side and the second side, described optical clear bonding coat is arranged at described the first side and second side of described optical clear flexible membrane, the second side of described optical clear flexible membrane by with the contiguous peripheral part of the described outward flange of described optical clear flexible membrane around middle body limit; And
Optics liquid adhesive, is comprised in the described middle body of described second side of described optical clear flexible membrane.
11. 1 kinds of methods for the manufacture of Multi-level display device, comprising:
A) the optical clear bonding coat of the bonding preformed member of flexibility is fixed to the surface of inflexibility the first substrate, the bonding preformed member of described flexibility comprise there is the first side, the second side and outer peripheral optical clear flexible membrane, described optical clear bonding coat be arranged in described first side of described optical clear flexible membrane and described the second side by with the contiguous peripheral part of described outward flange around the part that limits of middle body;
B) optical transparent liquid bonding agent is assigned to the described middle body of described the second side;
C) inflexibility the second substrate is arranged on described liquid adhesive, thereby make described bonding agent flow to the described outward flange of described optical clear flexible membrane from described middle body, to make described liquid adhesive form even thickness film, and substantially there is no bubble between described optical clear flexible membrane and the second substrate of described inflexibility;
D) solidify described liquid adhesive to form solid adhesive layer,
Wherein, described optical clear flexible membrane also comprises outward flange and groove, and described groove is positioned at described the second side and extends near described outward flange, and described step c) comprises: make liquid adhesive flow into described groove and flow along described groove.
12. methods as claimed in claim 11, wherein, described inflexibility the first substrate comprises display, described inflexibility the second substrate comprises optical clear top board.
13. methods as claimed in claim 11, wherein, described inflexibility the first substrate comprises optical clear top board, described inflexibility the second substrate comprises display.
14. methods as described in claim 12 or 13, wherein, described display is selected from liquid crystal display or plasma display.
15. methods as described in claim 12 or 13, wherein, described optical clear top board is selected from touch pad, glass plate, plastic plate or has the substrate of glass of indium-tin oxide coatings.
16. methods as claimed in claim 11, wherein, described inflexibility display comprises liquid crystal display, described optical clear top board comprises touch panel.
17. methods as claimed in claim 11, wherein, described bonding preformed member is included in the optical clear pressure sensitivity bonding coat on described optical clear flexible membrane.
18. methods as claimed in claim 11, wherein, described bonding preformed member is cross cutting.
19. methods as claimed in claim 11, wherein, the optical clear bonding coat of described bonding preformed member is pressure sensitive adhesive.
20. methods as claimed in claim 11, wherein, described step a) comprises:
Exert pressure described bonding coat to be adhered to the described surface of described inflexibility the first substrate to the bonding preformed member of described flexibility.
21. methods as claimed in claim 20, wherein, described pressure is about 1-4 bar (20-60psi).
22. methods as claimed in claim 11, wherein, described step a) comprises:
By bonding described flexibility preformed member roll extrusion on the described surface of described inflexibility the first substrate.
23. methods as claimed in claim 20, wherein, described step a) comprises:
In the time of the fixing bonding preformed member of described flexibility, heat described bonding coat is adhered to the described surface of described inflexibility the first substrate.
24. methods as claimed in claim 23, wherein, the temperature of heating is about 60 ° of C of 23 –.
25. methods as claimed in claim 11, wherein, described optical transparent liquid bonding agent is ultraviolet curable liquid adhesive.
26. methods as claimed in claim 11, wherein, described step c) comprises:
Described inflexibility the second substrate is suspended on described optical clear flexible membrane, to form runner between described inflexibility the second substrate and described optical clear flexible membrane, thereby make described liquid adhesive flow to described outward flange from the described middle body of described optical clear flexible membrane by the capillarity between described inflexibility the second substrate and described optical clear flexible membrane.
27. methods as claimed in claim 11, wherein, the thickness of the described liquid adhesive in step c) is about 0.01-0.5mm.
28. methods as described in claim 12 or 13, wherein, step d) comprises:
Make described liquid adhesive be exposed to UV radiation by optical lens isotropic disk, to solidify described liquid adhesive film.
29. methods as claimed in claim 28, wherein, described liquid adhesive film is exposed to the radiation that wavelength is about 100-400nm.
30. methods as claimed in claim 11, wherein, described step d) comprises:
Heating is to solidify described liquid adhesive film.
31. Multi-level display devices as described in any one in claim 1-9, wherein, the degree of depth of described groove is the half of described optical clear flexible membrane thickness.
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|---|---|---|---|
| CN201310037658.5A CN103969861A (en) | 2013-01-30 | 2013-01-30 | Display device and assembling method |
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| CN201310037658.5A CN103969861A (en) | 2013-01-30 | 2013-01-30 | Display device and assembling method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104699303A (en) * | 2015-03-24 | 2015-06-10 | 赵跃 | Improved assembly structure of touch screen (or protection screen) and display screen |
| WO2019010749A1 (en) * | 2017-07-12 | 2019-01-17 | 武汉华星光电半导体显示技术有限公司 | Display panel, manufacturing method therefor, and display |
| CN113573908A (en) * | 2019-02-05 | 2021-10-29 | 法国诺华公司 | Method for laminating a protective screen to a flexible display support and mould for carrying out said lamination method |
-
2013
- 2013-01-30 CN CN201310037658.5A patent/CN103969861A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104699303A (en) * | 2015-03-24 | 2015-06-10 | 赵跃 | Improved assembly structure of touch screen (or protection screen) and display screen |
| WO2019010749A1 (en) * | 2017-07-12 | 2019-01-17 | 武汉华星光电半导体显示技术有限公司 | Display panel, manufacturing method therefor, and display |
| CN113573908A (en) * | 2019-02-05 | 2021-10-29 | 法国诺华公司 | Method for laminating a protective screen to a flexible display support and mould for carrying out said lamination method |
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Application publication date: 20140806 |