CN107329527A - Mobile terminal diaphragm and preparation method, mobile terminal - Google Patents
Mobile terminal diaphragm and preparation method, mobile terminal Download PDFInfo
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- CN107329527A CN107329527A CN201710548250.2A CN201710548250A CN107329527A CN 107329527 A CN107329527 A CN 107329527A CN 201710548250 A CN201710548250 A CN 201710548250A CN 107329527 A CN107329527 A CN 107329527A
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- 238000002360 preparation method Methods 0.000 title abstract description 9
- 229920000642 polymer Polymers 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims description 40
- 238000000034 method Methods 0.000 claims description 31
- 230000008569 process Effects 0.000 claims description 16
- 238000007731 hot pressing Methods 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 4
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 4
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 4
- 229920001169 thermoplastic Polymers 0.000 claims description 4
- 239000004416 thermosoftening plastic Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 2
- 238000003475 lamination Methods 0.000 claims description 2
- 230000002633 protecting effect Effects 0.000 abstract description 7
- 238000005520 cutting process Methods 0.000 description 7
- 229920006254 polymer film Polymers 0.000 description 7
- 210000003127 knee Anatomy 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000004080 punching Methods 0.000 description 4
- 238000007790 scraping Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
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- Computer Hardware Design (AREA)
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- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Telephone Set Structure (AREA)
Abstract
The present invention proposes mobile terminal diaphragm and preparation method, mobile terminal.The mobile terminal diaphragm includes：Body；Kink, the kink is arranged at least part outward flange of the body, the kink includes upper arc surface, lower arc surface and lateral wall, the upper arc surface is connected with the upper surface of the body, the lower arc surface is connected with the lower surface of the body, the lateral wall is connected with the outer end of the upper arc surface and the outer end of the lower arc surface, and there is chamfering between the lateral wall and the upper arc surface, the body and the kink are formed by polymer.Thus, it is possible to improve the problem of hand is scraped at diaphragm edge, while protecting effect of the diaphragm to Curved screen can be ensured.
Description
Technical field
The present invention relates to electronic equipment manufacturing field, in particular it relates to which mobile terminal diaphragm and preparation method, movement are eventually
End.
Background technology
The mobile terminals such as current mobile phone, tablet personal computer, in order to improve display effect, lift Consumer's Experience, using 2.5D
Or 3D Curved screens.For example, display screen center has planar structure, edge has certain arc.Current mobile phone, flat board on the market
The mobile terminals such as computer have screen protecting film, are lifted for screen protection and feel.With the hair of 2.5D and 3D Curved screens
Exhibition, for 2.5D and 3D Curved screens screen protecting film the need for also roll up, its structure is similar to the structure of Curved screen,
I.e. center has planar structure, and edge has certain arc, so as to more be fitted with Curved screen, played a protective role, and
Lift feel.
However, current 2.5D and 3D Curved screens diaphragm and preparation method, mobile terminal still have much room for improvement.
The content of the invention
The application is that discovery based on inventor to following facts and problem and understanding are made：
Currently used for 2.5D and 3D Curved screens screen protecting film more there is the problem of hand is scraped at edge.Inventor is through too deep
Enter research and many experiments are found, this thicker is caused mainly due to the thickness of diaphragm.In preparation process, protect first
Cuticula is temporarily flattened in blanking die, is then carried out squeezing and is cut into type, section is the side of diaphragm.When diaphragm is thicker
When, the feel of scraping of diaphragm side will be obvious, and especially in two sides intersection, i.e., wedge angle is sharp at flex point,
Scraping hand problem will be more serious., although protective effect of the thicker diaphragm to Curved screen is better, but it brings simultaneously therefore
Scrape that hand problem is also more serious, so as to influence the feel of user to experience, influence product sales volume.
In view of this, the present invention proposes a kind of mobile terminal diaphragm.The mobile terminal diaphragm includes：Body；
Kink, the kink is arranged at least part outward flange of the body, the kink include upper arc surface, under
Arcwall face and lateral wall, the upper arc surface are connected with the upper surface of the body, the lower arc surface and the body
The lower surface in portion is connected, and the lateral wall is connected with the outer end of the upper arc surface and the outer end of the lower arc surface, and institute
Stating has chamfering between lateral wall and the upper arc surface, the body and the kink are formed by polymer.
Thus, it is possible to improve the problem of hand is scraped at diaphragm edge, while protecting effect of the diaphragm to Curved screen can be ensured.
In another aspect of this invention, the present invention proposes a kind of method for preparing mobile terminal diaphragm.According to this hair
Bright embodiment, this method includes：Forming processes are carried out to polymer, to form the prefabricated material of diaphragm, the diaphragm is pre-
At least part outward flange of system material body is provided with kink, and the kink includes upper arc surface, lower arc surface and outer
Side wall, the upper arc surface is connected with the upper surface of the body, the lower arc surface and the lower surface phase of the body
Even；Chamfering is set between the lateral wall of the upper arc surface and the prefabricated material of the cuticula, to form the diaphragm.By
This, it is possible to use simple production technology acquisition can improve edge and scrape hand problem, and can guarantee that the diaphragm of protecting effect.
In another aspect of this invention, the present invention proposes a kind of mobile terminal.Embodiments in accordance with the present invention, the movement
Terminal includes：Mainboard and memory are provided with housing, the housing；Screen, the screen is arranged on the top of the housing
Portion and it is connected with the mainboard, the edge of the screen has cambered surface；Foregoing mobile terminal diaphragm, it is described mobile whole
Diaphragm is held to cover the outer surface of the screen.Thus, it is possible to lift the use feel of the mobile terminal.
Brief description of the drawings
Fig. 1 shows the structural representation of mobile terminal diaphragm according to an embodiment of the invention；
Fig. 2 shows the structural representation of mobile terminal diaphragm in accordance with another embodiment of the present invention；
Fig. 3 shows the schematic cross-section of the mobile terminal diaphragm in the B-B ' directions along along Fig. 2；
Fig. 4 shows the schematic cross-section of the mobile terminal diaphragm in the C-C ' directions along along Fig. 2；
Fig. 5 shows the part-structure schematic diagram of the mobile terminal diaphragm of a-quadrant in Fig. 1；
Fig. 6 shows the structural representation of prior art mobile terminal diaphragm；
Fig. 7 shows the schematic flow sheet according to an embodiment of the invention for preparing mobile terminal protection film method；
Fig. 8 shows the structural representation of the mould according to an embodiment of the invention for preparing mobile terminal diaphragm；
Fig. 9 shows the schematic cross-section of the mould according to an embodiment of the invention for preparing mobile terminal diaphragm；
Figure 10 shows the schematic cross-section of the mould according to an embodiment of the invention for preparing mobile terminal diaphragm；
Figure 11 shows that the partial cross section of the mould according to an embodiment of the invention for preparing mobile terminal diaphragm shows
It is intended to；And
Figure 12 shows that the partial cross section of the mould according to an embodiment of the invention for preparing mobile terminal diaphragm shows
It is intended to.
Reference：
100：Mobile terminal diaphragm；110：Body；120：Upper arc surface；130：Lower arc surface；140：Chamfering；150：
Lateral wall；160：The prefabricated material of diaphragm；210：Cavity plate；220：Punch-pin；10：Imitation-shaped groove；21：Cavity plate imitation profile；22：Punch-pin profiling
Face；310：Mold；320：Lower mould；330：Cutter；31：Upper mould imitation profile；32：Lower mould imitation profile.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings.Below with reference to
The embodiment of accompanying drawing description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
In one aspect of the invention, the present invention proposes a kind of mobile terminal diaphragm.Embodiments in accordance with the present invention,
With reference to Fig. 1, the mobile terminal diaphragm 100 includes：Body 110 and it is arranged on body at least a portion outward flange
Kink.Kink includes upper arc surface 120, lower arc surface 130 and lateral wall 150, upper arc surface 120 and body 110
Upper surface be connected, lower arc surface 130 is connected with the lower surface of body 110, the outer end of lateral wall 150 and upper arc surface 120
And the outer end of lower arc surface 130 is connected.Wherein, it is provided with chamfering between the lateral wall 150 of upper arc surface 120 and body
140.Use scope on the mobile terminal diaphragm is not particularly limited, and those skilled in the art can be as the case may be
Progress uses design.For example, the mobile terminal can be mobile phone, tablet personal computer and intelligent watch etc..Thus, it is possible to improve guarantor
The problems such as stress concentration that hand and diaphragm bending are caused is scraped at cuticula edge, while guarantor of the diaphragm to Curved screen can be ensured
Effect is protected, the use feel of mobile terminal is lifted.
Understand for convenience, the principle that hand problem is scraped in diaphragm improvement is briefly described first：
As it was previously stated, 2.5D and 3D Curved screens are protected using the diaphragm with arcwall face in the prior art, in order to
Strengthen the protective effect to Curved screen, it will usually thicken diaphragm.With the increase of protection film thickness, hand is scraped at diaphragm edge
Problem also can be more and more obvious.Thickness increase simultaneously, the problem of stress concentration in diaphragm arcwall face knee also can be more prominent.Tool
Body, with reference to Fig. 6, mobile terminal diaphragm 100 by body 110 and its edge upper arc surface 120, lower arc surface
130 are constituted.In upper arc surface 120 and the intersection of lateral wall 150, i.e. wedge angle at flex point is sharp, so that scraping hand problem
It is more serious.Embodiments in accordance with the present invention, with reference to Fig. 1, a mistake is set in the intersection of upper arc surface 120 and lateral wall 150
The chamfering 140 crossed, so that the side of diaphragm is smoother, without sharp wedge angle.Thus, protection can on the one hand be improved
Hand problem is scraped at film edge, on the other hand, can also improve the problem of stress concentration in knee, so as to lift feel.
Below according to the specific embodiment of the present invention, each structure to the diaphragm is described in detail：
Embodiments in accordance with the present invention, body 110 and kink can be formed by polymer.Specifically, shape
Polymer into body 110 and kink can include at least one of PET, PMMA, PC, PVC and optical cement.By
This, it is possible to use above-mentioned common used material prepares diaphragm, saves cost.Embodiments in accordance with the present invention, body 110 can be wrapped
Include stepped construction.Thus, it is possible to improve protecting effect of the diaphragm to Curved screen.
Embodiments in accordance with the present invention, with reference to Fig. 2~Fig. 4, body 110 can include quadrangle body, and four side
Symmetrical two edges of shape body have upper arc surface 120 and lower arc surface 130.In other words, body 110 can be length
Square or square.Specifically, with reference to Fig. 3, along the width of quadrangle body (such as rectangle), can have upper arc
Face 120A, 120B and lower arc surface 130A, 130B.Or, with reference to Fig. 4, along the length direction of quadrangle body, can have
Upper arc surface 120C, 120D and lower arc surface 130C, 130D.According to a particular embodiment of the invention, body 110 can be
Rectangle, and rectangular 4 edges are respectively provided with kink (including upper arc surface 120 and lower arc surface 130).It that is to say
Say, upper arc surface 120 and lower arc surface 130 can be provided with the width and length direction of rectangular body.
Specifically, with reference to Fig. 3 and Fig. 4, along the width of rectangular body, can have upper arc surface 120A, 120B and under
Arcwall face 130A, 130B；Along the length direction of rectangular body, can have upper arc surface 120C, 120D and lower arc surface
130C、130D.Thus, it is possible to which hand problem is scraped at comprehensive improvement diaphragm edge, feel is lifted.
On the upper arc surface 120 and the radian of lower arc surface 130 on 110 symmetrical two edges of body not by spy
Do not limit, those skilled in the art can be designed as the case may be.For example, embodiments in accordance with the present invention, Ke Yishe
The radian for being calculated as upper arc surface 120A, 120B (or 120C, 120D) is equal, lower arc surface 130A, 130B (or 130C,
Radian 130D) is equal, and the radian of upper arc surface 120 is equal with the radian of lower arc surface 130, thus, it is possible to obtain curved surface
Knee thickness more homogeneous diaphragm.Or, it is also designed to upper arc surface 120A, 120B (or 120C, 120D)
Radian it is equal, the radian of lower arc surface 130A, 130B (or 130C, 130D) is equal, but the radian of upper arc surface 120 with
The radian of arcwall face 130 is unequal, thus, it is possible to obtain the bigger diaphragm of curved surface knee thickness.
Embodiments in accordance with the present invention, with reference to Fig. 5, in order to realize upper arc surface seamlessly transitting to lateral wall, in upper arc
Chamfering is set between shape face 120 and lateral wall 150, so that improving edge scrapes hand problem.Embodiments in accordance with the present invention, chamfering
(angle of angle a) as shown in the figures is smaller, i.e. the edge of the diaphragm 100 at the supplementary angle of angle between 140 and lateral wall 150
With more gentle incline, then improve edge scrape hand effect it is better.Also, also can preferably alleviate due to turning and
The problem of edge stress is excessive, so as to prevent mobile terminal diaphragm 100 peeling-off in the position.For example, according to this hair
Bright specific embodiment, the supplementary angle a of angle can be 10~45 degree between chamfering 140 and lateral wall 150.Thus, it is possible to realize
Seamlessly transitting for diaphragm, improves edge and scrapes hand problem.According to some currently preferred embodiments of the present invention, chamfering 140 and lateral wall
The supplementary angle a of angle can be 20~40 degree between 150.In other words, the angle between chamfering and lateral wall can be 135-170
Degree, for example, can be 140-160 degree.According to a particular embodiment of the invention, the height of lateral wall 150 is (as shown in the figures
D 0.15mm can) be not higher than.Inventor has found by further investigation and many experiments, when the side of mobile terminal diaphragm 100
When edge lateral wall 150 is too high, user is susceptible to more significantly scraping feel in use.Therefore, when the height of lateral wall 150
When degree is less than 0.15mm, specifically, when the height of lateral wall 150 is 0.05~0.1mm, can further lift the diaphragm and exist
Level of comfort when using.It should be noted that the height of lateral wall 150, with the length and lateral wall 150 of chamfering 140 with
(angle a) is relevant at the supplementary angle of the angle of chamfering 140.In other words, chamfering 140 it is isogonal under the premise of, the length of chamfering 140
Degree is longer, then the height of the lateral wall 150 ultimately formed is smaller；On the premise of the length of chamfering 140 is constant, the angle at a angles is got over
Greatly, the height of the lateral wall 150 ultimately formed is higher.According to a preferred embodiment of the invention, a angles can be in 20-40 degree
Between, and the height of lateral wall 150 is less than 0.1mm, for example, being 0.05~0.1mm.
In addition, it will be appreciated to those of skill in the art that mobile terminal diaphragm is that mobile terminal is protected, by
Mobile terminal upper surface is provided with camera and receiver, therefore mobile terminal diaphragm is in correspondence camera and receiver
Position should be provided with perforate, so as to ensure the performance of mobile terminal.
In another aspect of this invention, the present invention proposes a kind of method for preparing mobile terminal diaphragm.According to this hair
Bright embodiment, mobile terminal diaphragm prepared by this method can be previously described mobile terminal diaphragm.Thus, utilize
Mobile terminal diaphragm prepared by this method, can have and previously described mobile terminal diaphragm identical feature and excellent
Point, will not be repeated here.Embodiments in accordance with the present invention, with reference to Fig. 7, this method includes：
S100：Forming processes are carried out to polymer, being formed has the prefabricated material of the diaphragm of upper arc surface and lower arc surface
Embodiments in accordance with the present invention, in this step, forming processes are carried out to polymer, to form tool kink
The prefabricated material of diaphragm.It will be appreciated to those of skill in the art that can be previously described due to utilize this method preparation
Diaphragm, therefore, the prefabricated material of diaphragm can also include body and kink, and at least part outward flange of body is set
There is kink, kink includes upper arc surface, lower arc surface and lateral wall, and upper arc surface is connected with the upper surface of body,
Lower arc surface is connected with the lower surface of body.On having been carried out being described in detail before the material of polymer, herein no longer
Repeat.For example, embodiments in accordance with the present invention, polymer can include PET, PMMA, PC, PVC and optical cement at least it
One.Thus, it is possible to prepare diaphragm using above-mentioned common used material, cost is saved.During the prefabricated material of diaphragm is prepared, need
Forming processes are carried out to polymer, embodiments in accordance with the present invention, forming processes can include at lamination treatment and thermoplastic
At least one of reason.It should be noted that carrying out forming processes to polymer should be interpreted broadly, according to the implementation of the present invention
Example, with reference to Fig. 9, forming processes can carry out forming processes to the thin polymer film of thermoplastic shaping, to form kink.
Or, forming processes can also directly carry out thermoplastic processing to polymer, while being compressed into film, form bending
Portion.When carrying out forming processes to thin polymer film, thin polymer film can have larger area, utilize cavity plate 210 and convex
220 pairs of thin polymer films of mould carry out forming processes, can form kink on the thin polymer film of plane.Due to polymer
Film has larger area, therefore can form multiple diaphragms linked together prefabricated on a thin polymer film
Material.Thus, it is possible to further improve production efficiency.Specifically, with reference to Fig. 8 and Fig. 9, polymer is placed in into cavity plate 210 first
Imitation-shaped groove 10 in, punch-pin 220 and cavity plate 210 are then subjected to hot pressing matched moulds, so as to make the polymer in imitation-shaped groove 10 into
Type, so as to prepare the prefabricated material 160 of diaphragm.It should be noted that with reference to Figure 10, the side of the imitation-shaped groove 10 in cavity plate 210
Edge has cavity plate imitation profile 21, and the edge of punch-pin 220 has punch-pin imitation profile 22, during hot pressing matched moulds, to be formed
Upper arc surface and lower arc surface.Thus, it is possible to which being obtained using simple production technology has upper arc surface and lower arc surface
The prefabricated material of diaphragm.It will be appreciated to those of skill in the art that due to the rebound characteristics of polymer, when polymer is by hot pressing
The crooked radian meeting in resilience, therefore the crooked radian and forming process of the diaphragm actually prepared can be produced after shaping
It is inconsistent.Therefore, in the design process, it is necessary to which the radian of cavity plate and punch-pin imitation profile is set greater than into diaphragm arcwall face
Radian so that the degree of crook of the diaphragm finally obtained for need obtain crooked radian.
S200：Chamfering is set between upper arc surface and the prefabricated material lateral wall of diaphragm, to form diaphragm
Embodiments in accordance with the present invention, in this step, are set between upper arc surface and the prefabricated material lateral wall of diaphragm
Chamfering, to form diaphragm.According to a particular embodiment of the invention, with reference to Figure 11, the prefabricated material 160 of diaphragm is fixed first
Between mold 310 and lower mould 320, then along edge (the arrow institute in figure of mold 310 and lower mould 320
Finger direction), processing is punched out to the edge of the prefabricated material of diaphragm 160 using cutter 330.Due to according to embodiments of the present invention
Diaphragm is formed by polymer, therefore, after punching processing, and a certain degree of elasticity can occur for the edge of punching processing
Resilience.Thus, it is possible to easily chamfering be set at the edge of the prefabricated material 160 of diaphragm, to obtain diaphragm.
In the prior art, the upper mould of die cutting die and the edge of lower mould are plane, and therefore, the prefabricated material of diaphragm is put into
After in die cutting die, the lower arc surface of the prefabricated material of diaphragm can be parallel to horizontal plane, after it is punched by cutter, its edge
For vertically and perpendicular to the lateral wall of lower arc surface, and the chamfering of transition will not be formed.In the present invention, using with arc
The die cutting die (mold 310 and lower mould 320) in face is punched out to the prefabricated material of diaphragm, can be simply forming transition
Chamfering.It should be noted that being the diaphragm of 2.5D screens, i.e. diaphragm due to diaphragm according to embodiments of the present invention
Edge there is globoidal structure (upper arc surface and lower arc surface), and the radian of globoidal structure is smaller, therefore, utilizes conventional
Lateral incision or rotary-cut scheme, it is impossible to prepare chamfering at the edge of upper arc surface.Method according to embodiments of the present invention, it is possible to use poly-
The elastic recoil performance of compound material itself, easily obtains chamfering structure.Also, the die cutting die of chamfering structure is prepared,
Easily it can be obtained by carrying out simple modifications to existing mold, so as to be conducive to further saving production cost.
It should be noted that with reference to Figure 12, the edge of mold 310 and lower mould 320 is cambered surface, in other words,
The edge that the edge of mold 310 has imitation profile 31 and lower mould 320 above has lower mould imitation profile 32.Also, according to
The specific embodiment of the present invention, the radian of upper mould imitation profile 31 is more than the radian of diaphragm upper arc surface, and lower mould arcwall face
32 radian is more than the radian of diaphragm lower arc surface, thus, it is possible to chamfering is formed after the prefabricated material of diaphragm is punched, from
And improve and scrape hand problem.It should be noted that the radian of the upper mould imitation profile 31 of die cutting die is with preparing the prefabricated material of diaphragm
The radian of cavity plate imitation profile is equal, and lower mould imitation profile 32 is equal with the radian of punch-pin imitation profile, thereby may be ensured that shaping
The stability of radian.In addition, compared with die cutting die of the edge for plane, the die cutting die with arc imitation profile can also make
The edge of diaphragm is more matched with diaphragm, so as to avoid the prefabricated material of diaphragm from being deformed during punching is handled.
Radian on upper mould imitation profile, lower mould imitation profile (or cavity plate imitation profile, punch-pin imitation profile) is not limited especially
System, as long as can match with the upper arc surface of the diaphragm of preparation and the radian of lower arc surface, people in the art
Member can be designed as the case may be.For example, embodiments in accordance with the present invention, can be designed as the radian of mould imitation profile
(or the radian of cavity plate imitation profile is equal with the radian of punch-pin imitation profile) equal with the radian of lower mould imitation profile, thus, it is possible to
Obtaining has chamfering and the more uniform diaphragm of curved surface knee thickness.Or, it is also designed to the arc of mould imitation profile
The radian of degree and lower mould imitation profile is unequal (or the radian of the radian of cavity plate imitation profile and punch-pin imitation profile is unequal), by
This, can obtain with chamfering and the bigger diaphragm of curved surface knee thickness.
It should be noted that the specific material of above-mentioned mold 310 and lower mould 320 is not particularly limited.For example, can
Think metal formation.According to the specific embodiment of the present invention, the upper mould imitation profile of mold 310 and lower mould 320,
At lower mould imitation profile, it can be formed by the steel of chromium 12 or SKD11 steel.Thus, mould imitation profile, lower imitation shape are advantageously ensured that
The mechanical strength in face, so as to ensure to be punched effect.In addition, in order to avoid in blanking process, upper square dies are in polymer shape
Into the prefabricated material surface of diaphragm extrude impression, the edge that therefore, it can in the upper imitation profile of upper imitation shape mould is reserved certain
Clearance position.According to a particular embodiment of the invention, more than 0.2mm can be reserved at the edge for imitating the upper imitation profile of shape mould
Clearance position.Thus, it is possible to further improve the performance of the diaphragm finally obtained.Inventor by many experiments confirm,
The unilateral edge of a knife of mold 310 and lower mould 320 sets a less gap, and such as 0.003mm gap can improve this
The service life of mold 310 and lower mould 320, and avoid due to the position mistake between mold 310 and lower mould 320
In close, and punching effect is impacted, and then product yield can be ensured.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.For example, according to the specific embodiment of the present invention, forming diaphragm pre-
Cavity plate, the punch-pin of material are made, and forms the mold and lower mould of chamfering, can be all formed from metal.According to the present invention's
Another specific embodiment, can also realize the hot-forming of the prefabricated material of diaphragm using same mold, and chamfering system
It is standby：As previously described, because forming cavity plate, the punch-pin of the prefabricated material of diaphragm, and the mold and lower mould of chamfering are formed, its
The radian of imitation profile is required to be more than the edge radian (upper arc surface and lower arc surface) of the diaphragm finally obtained, therefore,
Cavity plate, the radian of the imitation profile of punch-pin can be made, the radian of imitation profile corresponding with the mold and lower mould that form chamfering
It is equal.Thus, it is possible to easily realize hot-forming and chamfering preparation using same mold, polymeric material is finally utilized
The elastic recoil performance of material, obtains the diaphragm with default cambered surface and chamfer angle.
In another aspect of this invention, the present invention proposes a kind of mobile terminal.Embodiments in accordance with the present invention, the movement
Terminal includes：Housing, screen and foregoing diaphragm.It should be noted that the type of the mobile terminal is not by special
Limitation, for example, can be mobile phone, tablet personal computer etc..Mainboard and memory are provided with housing, to realize the mobile terminal
Performance.Screen is arranged on the top of housing and is connected with mainboard, and the edge of screen has cambered surface.Diaphragm covering screen
The outer surface of curtain, to provide protection for screen.Thus, the mobile terminal have whole features of previously described diaphragm with
And advantage, it will not be repeated here.Generally speaking, the use feel of the mobile terminal can be lifted, alleviates curve screens diaphragm
The problem of edge is easily peelable.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the not be the same as Example or the feature of example and non-be the same as Example or example described in this specification
Close and combine.
Claims (18)
1. a kind of mobile terminal diaphragm, it is characterised in that including：
Body；
Kink, the kink is arranged at least part outward flange of the body, and the kink includes upper arc
Face, lower arc surface and lateral wall, the upper arc surface are connected with the upper surface of the body, the lower arc surface with it is described
The lower surface of body is connected, and the lateral wall is connected with the outer end of the upper arc surface and the outer end of the lower arc surface,
And with chamfering between the lateral wall and the upper arc surface,
The body and the kink are formed by polymer.
2. mobile terminal diaphragm according to claim 1, it is characterised in that the body includes quadrangle body,
Symmetrical two edges of quadrangle body have the upper arc surface and the lower arc surface.
3. mobile terminal diaphragm according to claim 1, it is characterised in that the body includes rectangular body,
4 edges of the rectangular body are respectively provided with the upper arc surface and the lower arc surface.
4. the mobile terminal diaphragm according to Claims 2 or 3, it is characterised in that symmetrical two in the body
The upper arc surface on edge has equal radian；
The lower arc surface in the body on symmetrical two edges has equal radian.
5. mobile terminal diaphragm according to claim 1, it is characterised in that the polymer include PET, PMMA, PC,
At least one of PVC and optical cement.
6. mobile terminal diaphragm according to claim 5, it is characterised in that the body includes stepped construction.
7. mobile terminal diaphragm according to claim 1, it is characterised in that between the chamfering and the lateral wall
Angle is 135-170 degree.
8. mobile terminal diaphragm according to claim 7, it is characterised in that between the chamfering and the lateral wall
Angle is 140-160 degree.
9. mobile terminal diaphragm according to claim 7, it is characterised in that the height of the lateral wall is not higher than
0.15mm。
10. mobile terminal diaphragm according to claim 9, it is characterised in that the height of the lateral wall is 0.05~
0.1mm。
11. mobile terminal diaphragm according to claim 1, it is characterised in that at least one is provided with the body
Individual perforate.
12. a kind of method for preparing mobile terminal diaphragm, it is characterised in that including：
Forming processes are carried out to polymer, to form the prefabricated material of diaphragm, at least portion of the prefabricated material body of diaphragm
Exceptionally edge is provided with kink, and the kink includes upper arc surface, lower arc surface and lateral wall, the upper arc surface with
The upper surface of the body is connected, and the lower arc surface is connected with the lower surface of the body；
Chamfering is set between the lateral wall of the upper arc surface and the prefabricated material of the cuticula, to form the diaphragm.
13. method according to claim 12, it is characterised in that the forming processes are included at lamination treatment and thermoplastic
At least one of reason.
14. method according to claim 13, it is characterised in that the forming processes include：
Polymer is placed in the imitation-shaped groove of cavity plate；
Punch-pin and the cavity plate are subjected to hot pressing matched moulds, to make the forming polymer,
Wherein, the edge of the imitation-shaped groove and the punch-pin has imitation profile, so as to during the hot pressing matched moulds, shape
Into the upper arc surface and the lower arc surface.
15. method according to claim 13, it is characterised in that the polymer include PET, PMMA, PC, PVC and
At least one of optical cement.
16. method according to claim 12, it is characterised in that the chamfering is through the following steps that set：
The prefabricated material of the diaphragm is fixed between mold and lower mould, the edge of the mold and the lower mould
The edge of tool is cambered surface；
Along the mold and the edge of the lower mould, processing is punched out to the edge of the prefabricated material of the diaphragm,
Wherein, the cambered surface radian at the mold edge, more than the radian of the upper arc surface, and the arc of the lower die edge
Face radian, more than the radian of the lower arc surface.
17. the method according to claim 14 or 16, it is characterised in that the cambered surface radian at the mold edge, with
It is equal in the radian for the imitation profile for forming the upper arc surface；
The cambered surface radian of the lower die edge is equal with the radian of the imitation profile for forming the lower arc surface.
18. a kind of mobile terminal, it is characterised in that including：
Mainboard and memory are provided with housing, the housing；
Screen, the screen is arranged on the top of the housing and is connected with the mainboard, and the edge of the screen has cambered surface；
Mobile terminal diaphragm described in claim any one of 1-11, the mobile terminal diaphragm covers the outer of the screen
Surface.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710548250.2A CN107329527B (en) | 2017-07-06 | 2017-07-06 | Mobile terminal protective film, preparation method thereof and mobile terminal |
| PCT/CN2018/094421 WO2019007351A1 (en) | 2017-07-06 | 2018-07-04 | Protective film for electronic device and preparation method therefor, and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710548250.2A CN107329527B (en) | 2017-07-06 | 2017-07-06 | Mobile terminal protective film, preparation method thereof and mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107329527A true CN107329527A (en) | 2017-11-07 |
| CN107329527B CN107329527B (en) | 2024-02-09 |
Family
ID=60196528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710548250.2A Active CN107329527B (en) | 2017-07-06 | 2017-07-06 | Mobile terminal protective film, preparation method thereof and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107329527B (en) |
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| WO2019007351A1 (en) * | 2017-07-06 | 2019-01-10 | Oppo广东移动通信有限公司 | Protective film for electronic device and preparation method therefor, and electronic device |
| WO2020042168A1 (en) * | 2018-08-31 | 2020-03-05 | 华为技术有限公司 | Flexible protective film, curved display screen, and terminal |
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| CN205075418U (en) * | 2014-11-04 | 2016-03-09 | 深圳市华新龙纸品包装有限公司 | A screen protection membrane for touch -sensitive screen |
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| US20150169089A1 (en) * | 2013-12-12 | 2015-06-18 | Pedco, LLC | Surface Protection Film and Method of Making a Protection Film for a Touch Screen |
| CN205075418U (en) * | 2014-11-04 | 2016-03-09 | 深圳市华新龙纸品包装有限公司 | A screen protection membrane for touch -sensitive screen |
| KR20160108088A (en) * | 2015-03-06 | 2016-09-19 | 이병진 | Protective film for electronic device and manufacturing method therof |
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| WO2019007351A1 (en) * | 2017-07-06 | 2019-01-10 | Oppo广东移动通信有限公司 | Protective film for electronic device and preparation method therefor, and electronic device |
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| CN112567310A (en) * | 2018-08-31 | 2021-03-26 | 华为技术有限公司 | Flexible protection film, curved surface display screen and terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107329527B (en) | 2024-02-09 |
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