CN206870487U - A kind of diaphragm - Google Patents
A kind of diaphragm Download PDFInfo
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- CN206870487U CN206870487U CN201720284046.XU CN201720284046U CN206870487U CN 206870487 U CN206870487 U CN 206870487U CN 201720284046 U CN201720284046 U CN 201720284046U CN 206870487 U CN206870487 U CN 206870487U
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- diaphragm
- layer
- parent metal
- flexible parent
- display screen
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Abstract
The utility model embodiment provides a kind of diaphragm; apply on camber display screen, the diaphragm includes at least three layers of flexible parent metal, and the layer of silica gel between adjacent two layers flexible parent metal; the diaphragm uses hot pressing drawing and forming, and its shape is mutually fitted with the camber display screen.By the diaphragm in the utility model embodiment, the full frame covering to camber display screen can be realized, plays the full frame protective effect to camber display screen, reduces the crash rate of touch screen.
Description
Technical field
Field of mobile terminals is the utility model is related to, more particularly to a kind of diaphragm.
Background technology
With the development of science and technology, the electronic product needed to use in daily life, work is more and more, such as：Intelligence
Energy mobile phone, tablet personal computer, intelligent television etc..At the same time, in order to improve the outward appearance of electronic product, feel, drop resistant performance, manipulation
Property, visual effect etc., many electronic products begin to use curve screens.
By taking smart mobile phone as an example, display screen is one of important part of smart mobile phone, but can be met unavoidably in use
To scraping, collision or by filth, and the appearance of display screen protection film solves these problems, display screen protection well
Film can play a part of protecting electronic product screen with dirt-resistant, Anti-scratching.
In the prior art, mainly there are two methods using diaphragm for camber display screen：
1st, the screen plane domain of camber display screen, such as conventional planar protection film are only bonded；
2nd, the single-curved surface region (non-full frame covering) of camber display screen is only pasted using planar protection film.
Camber display screen can not be completely covered using first method, the curved edges of camber display screen can not be protected
Shield, using second method because pad pasting with camber display screen is not to be completely covered to be bonded, the position not fitted to easily is led
Cause damage dirty, for the camber display screen of four curved surfaces, two curved surfaces, which occur simultaneously, often falls the concentration of stress
Position, if the covering of no diaphragm easily crushes display screen, both the above method all can not perfectly agree with electronic product
Camber display screen.
Utility model content
In view of the above problems, it is proposed that the utility model embodiment is protected to provide a kind of one kind for overcoming above mentioned problem
Film.
In order to solve the above problems, the utility model embodiment discloses a kind of diaphragm, applies on camber display screen,
The diaphragm includes at least three layers of flexible parent metal, and the layer of silica gel between adjacent two layers flexible parent metal, the protection
Film uses hot pressing drawing and forming, and its shape is mutually fitted with the camber display screen.
Preferably, the diaphragm also includes the fitting silica gel under the orlop flexible parent metal of the diaphragm
Layer.
Preferably, the diaphragm also includes at least one layer of ink layer, and the ink layer is located at the diaphragm wherein
One layer between flexible parent metal and layer of silica gel.
Preferably, the diaphragm also includes the hardened layer on the superiors' flexible parent metal.
Preferably, the diaphragm also includes the protective layer on the hardened layer, the hardened layer and the guarantor
Layer of silica gel is provided between sheath, the protective layer is made up of flexible parent metal.
Preferably, the diaphragm is to the flexible parent metal after preheating and described positioned at adjacent using drawing die
Layer of silica gel stretching, pressurize between two sheets of flexible base material form, and the drawing die includes the shape with the camber display screen
The cavity plate and punch-pin to match.
Preferably, the camber display screen includes four camber display screens, and the diaphragm includes and four curved-surface display
The four curved surface diaphragms that the shape of screen is mutually fitted.
Preferably, the thickness of the diaphragm is between 0.10 to 0.2 millimeter.
Preferably, the flexible parent metal includes polyethylene terephthalate.
Preferably, in addition to positioned at the diaphragm orlop flexible parent metal under release layer, the release layer with
Layer of silica gel is provided between the orlop flexible parent metal.
The utility model embodiment includes advantages below：
In the utility model embodiment, diaphragm is applied on camber display screen, can include at least three layers of flexible base
Material, and the layer of silica gel between adjacent two layers flexible parent metal, using hot pressing drawing and forming, its shape and the curved-surface display
Screen is mutually fitted, and by the diaphragm in the utility model embodiment, can realize the full frame covering to camber display screen, is played pair
The full frame protective effect of camber display screen, reduce the crash rate of touch screen.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the utility model embodiment, below by the utility model embodiment
The required accompanying drawing used is briefly described in description, it should be apparent that, drawings in the following description are only that this practicality is new
Some embodiments of type, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of diaphragm of the utility model embodiment one；
Fig. 1 a are a kind of effect diagrams of diaphragm of the utility model embodiment one；
Fig. 1 b are the structural representations of another diaphragm of the utility model embodiment one；
Fig. 1 c are a kind of diaphragm machining sketch charts of the utility model embodiment one；
Fig. 2 is a kind of structural representation of diaphragm of the utility model embodiment two；
Fig. 2 a are a kind of ink for screen printing layer schematic diagrames of the utility model embodiment two；
Fig. 3 is a kind of structural representation of diaphragm of the utility model embodiment three；
Fig. 4 is a kind of structural representation of diaphragm of the utility model embodiment four；
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that described embodiment is the utility model part of the embodiment, rather than whole implementation
Example.Based on the embodiment in the utility model, those of ordinary skill in the art are obtained under the premise of creative work is not made
The every other embodiment obtained, belong to the scope of the utility model protection.
Reference picture 1, show a kind of structural representation of diaphragm of the utility model embodiment one.
In the utility model embodiment, the diaphragm can be applied in mobile phone, TV, wrist-watch, computer, palm PC
On the camber display screens of terminal such as (Personal Digital Assistant, PDA), and its shape can be with camber display screen
Mutually it is fitted.Wherein, fitting refers to that the shape of diaphragm can be bonded completely with camber display screen.
As a kind of example, camber display screen can include four camber display screens, and diaphragm can include and described four songs
The four curved surface diaphragms that the shape of face display screen is mutually fitted, as shown in Figure 1a, diaphragm can be mutually fitted with four camber display screens.
In fact, camber display screen can have perforate, for example, preposition shooting on smart mobile phone mean camber display screen
The hole of head, in this case, diaphragm is also required to mutually be fitted with the hole of camber display screen, i.e., also has on diaphragm corresponding
Hole.
In the utility model, diaphragm can include at least three layers of flexible parent metal, and positioned at adjacent two layers flexibility base
Layer of silica gel between material, by smearing silica gel between adjacent two layers flexible parent metal, form the very thin diaphragm of multilayer, such as Fig. 1
The diaphragm of three layers of shown flexible parent metal and layer of silica gel composition, by the compound of layer flexible base material, can either solve to protect
The stiffness issue of film, the problem of can solve the problem that toughness again.
As a kind of example, flexible parent metal can include PET and (Polyethylene Terephthalate, gather to benzene two
Formic acid glycol ester), polyester resin is commonly called as, is most important kind in thermoplastic polyester, its chemical formula is
COC6H4COOCH2CH2O, exchanged by dimethyl terephthalate (DMT) with glycol ester or first with terephthalic acid (TPA) and ethylene glycol esterification
Bishydroxyethyl terephthalate is synthesized, polycondensation reaction is then carried out again and is made.PET has excellent within the scope of wider temperature
Physical and mechanical properties, for long-term use of temperature up to 120 DEG C, electrical insulating property is excellent, or even under high-temperature high-frequency, its electrical property still compared with
It is good, but corona resistance is poor, creep resistance, fatigue durability, and rub resistance, dimensional stability are all fine.
Layer of silica gel can be used for being bonded PET, and its material can be optics silica gel, it is desirable to have water white transparency, light transmission rate
More than 90%, cementing strength it is good, can solidify under room temperature or medium temperature, and have the features such as cure shrinkage is small, organic silica gel, third
The adhesive such as olefin(e) acid type resin and unsaturated polyester (UP), polyurethane, epoxy resin can serve as layer of silica gel, but usual when preparing
Some inorganic agents are added, to improve its optical property or reduce cure shrinkage.
In actual applications, the too thick sense of touch experience and visual experience that can influence touch screen of diaphragm, it is too thin and be unfavorable for protecting
Protect screen, then in a kind of preferred exemplary of the present utility model, the thickness of the diaphragm can 0.10 to 0.2 millimeter it
Between so that diaphragm does not interfere with the sense of touch experience and visual experience of touch screen while preferably protection screen yet.
In a kind of preferred embodiment of the present utility model, the diaphragm can also be included positioned at the diaphragm most
Fitting layer of silica gel under lower floor's flexible parent metal, as shown in Figure 1 b, the fitting layer of silica gel can be used for and the curved-surface display
Screen fits.
In the utility model embodiment, the material for being bonded layer of silica gel can be with the silica gel between adjacent two layers flexible parent metal
Layer is identical, and the thickness of the layer of silica gel between adjacent two layers flexible parent metal can be more than by being bonded the thickness of layer of silica gel, for example, patch
The thickness for closing layer of silica gel can be between 25 to 35 μm (micron, micron), the silica gel between adjacent two layers flexible parent metal
The thickness of layer can be 10 μm.
In a kind of preferred embodiment of the present utility model, diaphragm can use hot pressing drawing and forming, to be formed and song
The diaphragm that the shape of face display screen is mutually fitted.
With reference to figure 1c, diaphragm can be to the flexible parent metal after preheating and soft positioned at adjacent two layers using drawing die
Property base material between layer of silica gel stretching, pressurize form, and drawing die can include what be matched with the shape of camber display screen
Cavity plate and punch-pin, then its specifically may include steps of：
Step 1, will by least three layers of flexible parent metal, and between adjacent two layers flexible parent metal layer of silica gel composition
Plane coiled strip (1-1) cuts into the sheet material to match with the size of camber display screen；
Step 2, for the ease of sheet material drawing die is put into, preliminary working can be carried out to sheet material, rush positioning hole；
Step 3, the sheet material (1-2) of made positioning hole is put into drawing die (1-3,1-4), the heating plate of drawing die
Sheet material is preheated, in order to which drawing and forming is easy in sheet material softening；Wherein, the temperature of preheating can be at 135 to 145 degrees Celsius
Between, the time of preheating can be between 3 to 5 seconds；
Step 4, drawing die stretch to the sheet material after preheating, form the shape being mutually fitted with camber display screen；Its
In, cooled down using cooling water cavity plate, so as to drawing die continuous production.
Step 5, after the stretch, pressurize, cooling can be carried out to sheet material, so that sheet forming does not rebound；Wherein, it is described
The time of pressurize is more than 13 seconds.
More than after 5 steps, it is possible to by least three layers of flexible parent metal, and positioned at adjacent two layers flexible parent metal
Between layer of silica gel composition plane coiled strip, obtain the diaphragm (1-5) being mutually fitted with the shape with camber display screen.
It should be noted that the diaphragm in the utility model embodiment can also meet other on the basic of diaphragm
Condition, such as：Meet the generally conventional property test of diaphragm, such as wear-resisting, light transmittance, anti-cosmetics conventionally test item, meet
Case hardness needs >=2H (HARD, hardness) of the material of diaphragm, the material of diaphragm steel wool test need meet >=
100 circulations etc..
In the utility model embodiment, diaphragm is applied on camber display screen, can include at least three layers of flexible base
Material, and the layer of silica gel between adjacent two layers flexible parent metal, using hot pressing drawing and forming, its shape and the curved-surface display
Screen is mutually fitted, and by the diaphragm in the utility model embodiment, can realize the full frame covering to camber display screen, is played pair
The full frame protective effect of camber display screen, reduce the crash rate of touch screen.
Reference picture 2, show a kind of structural representation of diaphragm of the utility model embodiment two.
In the utility model embodiment, on the basis of Fig. 1 diaphragm, the diaphragm can also include at least one
Layer ink layer, by ink layer, can show special pattern on diaphragm, be can't see simultaneously because staiing under ink,
The problems such as diaphragm stain resistant, anti-scratch can be improved.
As a kind of example, ink layer can include ink for screen printing, when ink for screen printing refers to use screen printing mode
Ink, fluorescent ink, gloss ink, magnetic ink, electrically conductive ink, fragrant printing ink, sublimation inks, transfer ink etc. can be divided into,
Its thickness can be 20 μm.
As shown in Fig. 2 ink layer can be located at wherein one layer of diaphragm between flexible parent metal and layer of silica gel, i.e., by ink
Then layer silk-screen is combined with each other, because ink layer is located at diaphragm with upper strata flexible parent metal on the top layer of one layer of flexible parent metal
Centre, be not easy oxidation by air discoloration, scratch.
In actual applications, as shown in Figure 2 a, the color that diaphragm is carried by ink layer can cover camber display screen
There are the bad defects such as dirty, grey side in non-display area, so as to lift the binding yield of diaphragm, reduce cost, still
The viewing area of camber display screen does not need ink for screen printing layer, to ensure that viewing area is transparent, and in ink for screen printing layer
When needed, it is necessary to silk-screen comes out together with positioning hole by the visual window of camber display screen, during punching press positioning hole and the positioning of silk-screen
Hole check and correction is accurate, silk-screen form not off normal during ensureing to stretch.
Reference picture 3, show a kind of structural representation of diaphragm of the utility model embodiment three.
In the utility model embodiment, on the basis of Fig. 1 or Fig. 2 diaphragm, the diaphragm can also include
Hardening (HC, Hard coating) layer on the superiors' flexible parent metal, can be used for hardening the diaphragm
Processing.
Wherein, hardened layer have translucency is good, wearability is good, adsorption capacity is suitable, will not come off easily, tear after will not stay
The features such as cull, its thickness is smaller, for example, 2-3 μm.And because the utility model embodiment uses more than three layers flexible bases
Material, it is ensured that hardened layer does not ftracture, and be bonded after it is non-foaming, do not warp.
Reference picture 4, show a kind of structural representation of diaphragm of the utility model embodiment four.
In the utility model embodiment, on the basis of Fig. 1 or Fig. 2 or Fig. 3 diaphragm, the top of the diaphragm
Protective layer can be included, can generally include the protective layer on hardened layer, and be provided between hardened layer and protective layer
Layer of silica gel, protective layer can be made up of flexible parent metal.
The diaphragm can also include diaphragm orlop flexible parent metal under release layer, and release layer with it is most lower
Layer of silica gel can be provided between layer flexible parent metal, release layer can also be made up of flexible parent metal.
Wherein, set between the layer of silica gel, release layer and the orlop flexible parent metal that are set between hardened layer and protective layer
Layer of silica gel and the layer of silica gel between adjacent two layers flexible parent metal can be made using identical material, can also be used
Different materials, protective layer, release layer are realized by the layer of silica gel of setting with diaphragm and are bonded.
Protective layer is to protect hardened layer, at least three layers of flexible parent metal, and between adjacent two layers flexible parent metal
Layer of silica gel, release layer also for protection fitting layer of silica gel do not stain, protective layer and release layer can be PET, Er Qieqi
Thickness can be more than the thickness of flexible parent metal, such as：Protective layer and release layer can be 50 μm, and the thickness of flexible parent metal can be
36μm。
Although having been described for the preferred embodiment of the utility model embodiment, those skilled in the art once learn
Basic creative concept, then can make other change and modification to these embodiments.So appended claims are intended to solve
It is interpreted as including preferred embodiment and falls into having altered and changing for the utility model embodiment scope.
Finally, it is to be noted that, herein, term " comprising ", "comprising" or its any other variant are intended to
Cover including for nonexcludability, so that process, method, article or terminal device including a series of elements not only include
Those key elements, but also the other element including being not expressly set out, or also include for this process, method, article or
The intrinsic key element of person's terminal device.In the absence of more restrictions, the key element limited by sentence "including a ...",
It is not precluded from other identical element in the process including the key element, method, article or terminal device being also present.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be wanted with right
The protection domain asked is defined.
Claims (8)
1. a kind of diaphragm, is applied on camber display screen, it is characterised in that the diaphragm includes at least three layers of flexible base
Material, and the layer of silica gel between adjacent two layers flexible parent metal, the diaphragm use hot pressing drawing and forming, its shape and institute
Camber display screen is stated mutually to be fitted；
The diaphragm also includes at least one layer of ink layer, and the ink layer is located at wherein one layer of flexible parent metal of the diaphragm
Between layer of silica gel, the diaphragm also includes the hardened layer on the superiors' flexible parent metal；
Wherein, at least one layer of ink layer includes ink for screen printing.
2. diaphragm according to claim 1, it is characterised in that the diaphragm is also included positioned at the diaphragm most
Fitting layer of silica gel under lower floor's flexible parent metal.
3. diaphragm according to claim 1, it is characterised in that the diaphragm also includes on the hardened layer
Protective layer, layer of silica gel is provided between the hardened layer and the protective layer, the protective layer is made up of flexible parent metal.
4. diaphragm according to claim 1 or 2, it is characterised in that the diaphragm is to preheating using drawing die
The flexible parent metal and layer of silica gel stretching, the pressurize between adjacent two layers flexible parent metal afterwards forms, the drawing
Stretch cavity plate and punch-pin that mould includes matching with the shape of the camber display screen.
5. diaphragm according to claim 1, it is characterised in that the camber display screen includes four camber display screens, institute
State the four curved surface diaphragms that diaphragm includes mutually being fitted with the shape of four camber display screen.
6. diaphragm according to claim 1 or 5, it is characterised in that the thickness of the diaphragm is at 0.10 to 0.2 millimeter
Between.
7. diaphragm according to claim 1 or 2, it is characterised in that the flexible parent metal includes poly terephthalic acid second
Diol ester.
8. diaphragm according to claim 1, it is characterised in that also include the orlop flexibility base positioned at the diaphragm
Release layer under material, layer of silica gel is provided between the release layer and the orlop flexible parent metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720284046.XU CN206870487U (en) | 2017-03-22 | 2017-03-22 | A kind of diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720284046.XU CN206870487U (en) | 2017-03-22 | 2017-03-22 | A kind of diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206870487U true CN206870487U (en) | 2018-01-12 |
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ID=61327196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720284046.XU Active CN206870487U (en) | 2017-03-22 | 2017-03-22 | A kind of diaphragm |
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| Country | Link |
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| CN (1) | CN206870487U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110016300A (en) * | 2019-04-10 | 2019-07-16 | 杨春盛 | Display screen protection film |
-
2017
- 2017-03-22 CN CN201720284046.XU patent/CN206870487U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110016300A (en) * | 2019-04-10 | 2019-07-16 | 杨春盛 | Display screen protection film |
| CN110016300B (en) * | 2019-04-10 | 2021-07-06 | 杨春盛 | Display screen protective film |
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