CN105988161A - Fabrication method of optical fiber board, optical fiber board, fingerprint imaging module set and mobile terminal - Google Patents
Fabrication method of optical fiber board, optical fiber board, fingerprint imaging module set and mobile terminal Download PDFInfo
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- CN105988161A CN105988161A CN201510086486.XA CN201510086486A CN105988161A CN 105988161 A CN105988161 A CN 105988161A CN 201510086486 A CN201510086486 A CN 201510086486A CN 105988161 A CN105988161 A CN 105988161A
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- fibril
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Abstract
The invention relates to a fabrication method of an optical fiber board, an optical fiber board, a fingerprint imaging module set and a mobile terminal. The fabrication method of the optical fiber board includes the following steps that: colored fibers and colorless fibers are arranged and combined, and then, are sintered so as to form a rod body; the colored fibers or colorless fibers are arranged and combined to form a set pattern or character; the set pattern or character is formed on the rod body which is formed through sintering; and the rod body is cut into a sheet-shaped body, and the sheet-shaped body is the optical fiber board. When the optical fiber board of the invention is adopted as a protection cover board, the protection cover board can have the set pattern or character, and therefore, a pattern or character is not required to be printed on the protection cover board through screen printing, and the imaging effect of the fingerprint imaging module set will not be affected by ink.
Description
Technical field
The present invention relates to fibre optic plate technical field, be specifically related to the manufacture method of a kind of fibre optic plate, fibre optic plate,
Fingerprint imaging module and mobile terminal
Background technology
With reference to Fig. 1, below the display screen 11 of the mobile terminal 10 of prior art can some patterns of silk-screen or
Character, can play mark action by pattern or character.
It is the mobile terminal 10 with fingerprint identification function with continued reference to Fig. 1, Fig. 1, fingerprint imaging module
The underface of 12 display screens 11 being arranged on mobile terminal 10, and this position the most also can screen printing pattern
Or character, then, fingerprint imaging module 12 occupies the position of pattern or character；During design or by figure
Case or character printing are on the cover sheet of fingerprint imaging module 12；Pattern or character are moved on to fingerprint
The side of imaging modules 12 is placed.
If by direct to pattern or character silk-screen to the cover sheet of fingerprint imaging module 12, due to ink
Thickness and light transmission, then can reduce the performance of fingerprint imaging module 12；For capacitive fingerprint imaging
Module, the thickness of ink influences whether capacitance size, and then has influence on imaging effect, so the thickness of ink
It is higher that degree controls requirement；For the fingerprint imaging module of optical profile type, the color of ink influences whether light transmission,
And then have influence on imaging effect；And the ink of silk-screen exists certain unreliability, of long duration, figure
The Hazard ratio that case or character come off is bigger；If pattern or character to be moved on to the side of fingerprint imaging module 12
Placing, it is the most attractive in appearance that this results in mobile terminal 10.
Summary of the invention
The problem that the present invention solves is the prior art mobile terminal with fingerprint identification function, in protection cap
On plate when screen printing pattern or character, ink can affect the imaging effect of fingerprint imaging module.
For solving the problems referred to above, the present invention provides the manufacture method of a kind of fibre optic plate, including:
Barred body is sintered into after coloured fibril and colourless fibril permutation and combination；
Described coloured fibril or colourless fibril permutation and combination become to set pattern or character；
Described setting pattern or character it is formed with on the barred body that described sintering is made；
Described barred body cuts into plates, and described plates are fibre optic plate.
Optionally, described coloured fibril is prepared by coloured preform adds heat fusing post-tensioning silk；
Described colourless fibril is prepared by colourless preform adds heat fusing post-tensioning silk.
Optionally, described coloured preform and described colourless preform all include sandwich layer and covering；
Described sandwich layer material is silica-doped germanium oxide；
Described covering material is silicon dioxide.
Optionally, described coloured preform and described colourless preform are by OVD or VAD
Or MCVD or PCVD prepares.
Optionally, described plates cross section is rounded or track type or polygon.
The present invention also provides for a kind of fibre optic plate, uses the manufacture method of the fibre optic plate described in any one to prepare.
Optionally, described fibre optic plate is formed with described setting pattern or character.
The present invention also provides for a kind of fingerprint imaging module, and including cover sheet, described cover sheet is arbitrary
Fibre optic plate described in Xiang.
The present invention also provides for a kind of mobile terminal, including described fingerprint imaging module.
Optionally, described mobile terminal is mobile phone or panel computer.
Compared with prior art, technical scheme has the advantage that
The present invention use fibre optic plate as cover sheet, after coloured fibril and colourless fibril permutation and combination
Sintering barred body into, barred body cuts into lamellar body and prepares fibre optic plate；Wherein, coloured fibril or colourless fibril row
Row are combined into setting pattern or character, can form pattern or the character of setting on the barred body of sintering,
Then, the plates after barred body cutting also have pattern or the character of setting；So use fibre optic plate conduct
During cover sheet, cover sheet has pattern or the character of setting；Without again by cover sheet
Screen printing pattern or character, then fingerprint imaging module also will not affect the one-tenth of fingerprint imaging module because of ink
As effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art mobile terminal；
Fig. 2 is the structural representation of fingerprint imaging modules in embodiment of the present invention mobile terminal；
Fig. 3 is the sectional view of the fibre optic plate in embodiment of the present invention fingerprint imaging module；
Fig. 4 is the enlarged drawing of part A in Fig. 3；
Fig. 5 is the structural representation of embodiment of the present invention fibre optic plate, and illustrates the pattern on fibre optic plate.
Detailed description of the invention
As described in the prior, the mobile terminal of function with fingerprint, can be on cover sheet
Screen printing pattern or character, the principle of silk-screen is: (producing on the version base of paper membrane version or other edition can for forme
By the eyelet of ink) when printing, make ink be transferred to by the eyelet of forme by certain pressure
On stock (paper, pottery etc.), form pattern or character.
And, for capacitive fingerprint imaging module, use capacitance type sensor；Capacitance type sensor is
Tested mechanical quantity, such as displacement, pressure etc. are converted to the sensor of electric capacitance change；If the thickness of ink
Spend big, then the spacing between finger and the capacitance type sensor of people becomes big, between finger and sensor
Electric capacity diminish, the capacitance difference mutation between the peak and valley of finger print less, thus affect condenser type
The precision of sensor, and then have influence on the imaging effect of capacitance type fingerprint imaging modules；For optical profile type
Fingerprint imaging module, uses optical sensor；Optical sensor i.e. produces after by radiation of visible light
Third contact of a total solar or lunar eclipse electrical effect, converts optical signals into signal of telecommunication output, and the color of ink influences whether light transmission, from
And have influence on the light that optical sensor receives, and then have influence on the imaging effect of optical fingerprint imaging modules
Really.
The present invention utilizes architectural characteristic and the manufacturing process of fibre optic plate, accomplishes on fibre optic plate by pattern or character,
Do not affect the imaging performance of fingerprint imaging module.
Understandable, below in conjunction with the accompanying drawings for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from
The specific embodiment of the present invention is described in detail.
With reference to Fig. 2, the fingerprint imaging module of the embodiment of the present invention includes:
Cover sheet, for providing the contact surface that can place object；Use fibre optic plate 100 as protection cap
Plate, the upper surface of described fibre optic plate 100 is contact surface, and when carrying out fingerprint imaging, human body finger is placed
On the upper surface of fibre optic plate 100；
Optical surface array sensor 200, optical surface array sensor 200 is positioned at contact surface described in fibre optic plate 100
Back on, optical surface array sensor 200 is by FPC300 with PCB main board (not shown) even
Connecing, fingerprint imaging module is wrapped up by housing 400, and housing 400 is metal shell, and housing 400 can be protected
Finger shield stricture of vagina imaging modules.
With reference to Fig. 3 and Fig. 4, the fibre optic plate 100 in the present embodiment is made up of many fibril permutation and combination sintering,
Wherein fibril includes fibre core 101 and fine skin 102；Fine skin 102 is wrapped in outside fibre core 101, plays protection fibre
The effect of core 101；The manufacture process of fibre optic plate is mainly: first, makes preform；Then,
The preform made is carried out wire drawing；Finally, the fibril permutation and combination obtained wire drawing sinters rod into
Body, cutting barred body obtains fibre optic plate.
The concrete manufacture process of fibre optic plate is as follows:
The making of preform:
Preform is called for short optical wand, is a kind of quartz glass having certain index distribution on cross section
Rod；According to the difference of refractive index, optical wand can be divided into sandwich layer and two parts of covering, its sandwich layer from structure
Refractive index higher, be by high-purity Si O2High-purity GeO that material doped refractive index is higher2Material is constituted,
Covering is by high-purity Si O2Material is constituted.
Sandwich layer and covering are produced preform by any method following:
Modified chemical vapor deposition process (MCVD) (MCVD:Modified Chemical Vapour Deposition)；
Vapour phase axial deposition technique (VAD:Vapour phase Axial Deposition)；
Rod outer chemical vapour deposition process (OVD:Outside Chemical Vapour Deposition)；
Plasma activates chemical vapour deposition technique (PCVD:Plasma activated Chemical Vapour
Deposition)。
The preform of transparent (colourless) and coloured light is produced by above-mentioned any of which method
Fine prefabricated rods, coloured preform is after colourless preform adds pigment in sintering process,
It is formed with color preform.
Wire drawing:
Drawing process is usually and completes in wire-drawer-tower, and wire-drawer-tower specifically includes that
High temperature furnace: for preform is heated so that preform becomes molten condition；
Laser diameter measuring instrument: for measuring whether fibril meets the diameter criteria of regulation；
Applicator: for coating protective coating to fibril；
Curing oven: for protective coating being solidificated in fibril surface；
Wire drawing wheel: for collecting qualified fibril.
Concrete drawing process is as follows:
High temperature furnace makes preform at high temperature (2000 DEG C～2200 DEG C) melt；
Melted preform is under gravity toward sagging, and forms filament, and filament is fibril；
Fibril is after laser diameter measuring instrument detection reaches standard, and the outside diameter control of general fibril is in 125 ± 1 μm
(an initial melting heat glass pulls out from the bottom of prefabricated rods, extends into the starting point of optical fiber, ordinary circumstance
This initial segment is all waste product), fibril just can pass applicator；
Protective layer has just been coated on fibril surface through applicator；When being not added with coating material, fibril is at air
Central exposed, easily acted on by extraneous stress, the stress of local is concentrated at this, causes intensity extremely low,
Fibril easily ruptures；In order to protect fibril surface, improve tensile strength and flexural strength, and be easy to reality
With, need to fibril coated with resins material；
The fibril of coated with resins material, again through curing oven, through ultra-violet curing in curing oven, then coats
Resin material just combine closely on fibril surface, the fibril after coating by wire drawing wheel traction receive on bobbin,
Completing the process of wire drawing, the diameter of fibril is about in 6 μm-12 μm.
Wherein, coloured preform is formed with coloured light after adding heat fusing fine, and coloured drawing optical fibers is formed
Color fibril；Colourless preform forms colourless optical fiber after adding heat fusing, colourless drawing optical fibers is formed colourless
Fibril.
The making of fibre optic plate:
The coloured fibril permutation and combination obtaining stretching arranges with colourless fibril after becoming to set pattern or character again
Combined sintering becomes barred body；Or, rear coloured again after colourless fibril permutation and combination is become to set pattern or character
Fibril permutation and combination sinters barred body into；
Coloured fibril or the setting figure of colourless fibril permutation and combination one-tenth it is formed with on the barred body that so sintering is made
Case or character；
Barred body cuts into plates, and plates are fibre optic plate, and the cross section of plates is rounded or runway
Shape or polygon or other shape.
In the embodiment of the present invention, coloured fibril permutation and combination becomes character " OXI " (with reference to Fig. 5), at other
In embodiment, coloured fibril can become other pattern or character with permutation and combination.
Fibril manufacturing process in the present embodiment can also be as follows:
Will be by high-purity Si O2High-purity GeO that material doped refractive index is higher2The sandwich layer that material is constituted puts into height
Pure SiO2In the covering that material is constituted, covering and sandwich layer are combined into pipe rod, and pipe is excellent under the effect of heating furnace,
Automatic sagging filamentation, then by the traction of pulling wheel, carries out one-off drawing, is drawn into the first fibril,
Now the diameter control of the first fibril is at 1mm.
Many first fibrils are bundled into barred body, carry out succeeding stretch, the diameter control of barred body after succeeding stretch
The diameter of the system each fibril in 1mm, such barred body can reduce a lot；Repeat the above steps, i.e.
Fibril after many succeeding stretch is bundled into barred body, again stretches, until the diameter control of every fibril
In 6 μm-12 μm；Equally, this process can be with stretched coloured fibril and colourless fibril.
The most stretched coloured fibril and colourless fibril is made to carry out the making of above-mentioned fibre optic plate
Journey.
Additionally, the manufacturing process of fibre optic plate of the present invention can also be as follows:
Will be by high-purity Si O2High-purity GeO that material doped refractive index is higher2The sandwich layer that material is constituted puts into height
Pure SiO2In the covering that material is constituted, covering and sandwich layer are combined into pipe rod, and pipe is excellent under the effect of heating furnace,
Automatic sagging filamentation, then by the traction of pulling wheel, be drawn into the first fibril, now the first fibril
Diameter control is at 1mm；This process can draw coloured first fibril and colourless first fibril.
Arrange again with colourless first fibril after becoming to set pattern or character by many coloured first fibril permutation and combination
Being bundled into barred body after row combination, now barred body is thicker；Or, by many colourless first fibril permutation and combination
Becoming and be bundled into barred body after rearranging combination with coloured first fibril after setting pattern or character, now barred body is relatively
Slightly.
By barred body sintering thicker after above-mentioned tying up, the most again carry out wire drawing, by thicker
Barred body is drawn into and meets the thinner barred body that design requires, after completing wire drawing, is cut into by thinner barred body
Plates, these plates are fibre optic plate, and fibre optic plate is formed setting pattern or character.
This process, it is not necessary to the fibril after stretching is carried out permutation and combination again and becomes to set pattern or character, directly
The row that run in stretch after being combined into setting pattern or character, improve working (machining) efficiency.
It should be noted that, the diameter of the fibril that above-described embodiment is mentioned does not limits, different fibre optic plates pair
The diametric requirements of fibril is different.
The present invention also provides for a kind of mobile terminal, and including described fingerprint imaging module, mobile terminal is hands
Machine or panel computer；The cover sheet of mobile terminal uses the fibre optic plate of the embodiment of the present invention, cover sheet
On there is setting pattern or character；Without again by screen printing pattern or character on cover sheet, then refer to
Stricture of vagina imaging modules also will not affect the imaging effect of fingerprint imaging module because of ink.
Although present disclosure is as above, but the present invention is not limited to this.Any those skilled in the art,
Without departing from the spirit and scope of the present invention, all can make various changes or modifications, therefore the guarantor of the present invention
The scope of protecting should be as the criterion with claim limited range.
Claims (10)
1. the manufacture method of a fibre optic plate, it is characterised in that including:
Barred body is sintered into after coloured fibril and colourless fibril permutation and combination；
Described coloured fibril or colourless fibril permutation and combination become to set pattern or character；
Described setting pattern or character it is formed with on the barred body that described sintering is made；
Described barred body cuts into plates, and described plates are fibre optic plate.
2. the manufacture method of fibre optic plate as claimed in claim 1, it is characterised in that described coloured fibril is logical
Cross coloured preform is added heat fusing post-tensioning silk prepare；
Described colourless fibril is prepared by colourless preform adds heat fusing post-tensioning silk.
3. the manufacture method of fibre optic plate as claimed in claim 2, it is characterised in that described coloured optical fiber prefabricating
Excellent and described colourless preform all includes sandwich layer and covering；
Described sandwich layer material is silica-doped germanium oxide；
Described covering material is silicon dioxide.
4. the manufacture method of fibre optic plate as claimed in claim 2, it is characterised in that described coloured optical fiber prefabricating
Excellent and described colourless preform is prepared by OVD or VAD or MCVD or PCVD.
5. the manufacture method of fibre optic plate as claimed in claim 1, it is characterised in that described plates cross section in
Circular or track type or polygon.
6. a fibre optic plate, it is characterised in that the making of employing fibre optic plate described in any one of claim 1-5
Method prepares.
7. fibre optic plate as claimed in claim 6, it is characterised in that be formed with described setting on described fibre optic plate
Pattern or character.
8. a fingerprint imaging module, it is characterised in that include that cover sheet, described cover sheet are that right is wanted
Seek the fibre optic plate described in any one of 6-7.
9. a mobile terminal, it is characterised in that include the fingerprint imaging module described in claim 8.
10. mobile terminal as claimed in claim 9, it is characterised in that described mobile terminal is mobile phone or flat board
Computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510086486.XA CN105988161B (en) | 2015-02-16 | 2015-02-16 | Production method, fibre optic plate, fingerprint imaging mould group and the mobile terminal of fibre optic plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510086486.XA CN105988161B (en) | 2015-02-16 | 2015-02-16 | Production method, fibre optic plate, fingerprint imaging mould group and the mobile terminal of fibre optic plate |
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| Publication Number | Publication Date |
|---|---|
| CN105988161A true CN105988161A (en) | 2016-10-05 |
| CN105988161B CN105988161B (en) | 2019-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510086486.XA Active CN105988161B (en) | 2015-02-16 | 2015-02-16 | Production method, fibre optic plate, fingerprint imaging mould group and the mobile terminal of fibre optic plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111373465A (en) * | 2018-01-31 | 2020-07-03 | 索尼公司 | Display device and optical apparatus |
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| CN101702045A (en) * | 2009-11-17 | 2010-05-05 | 长飞光纤光缆有限公司 | Method for manufacturing high-resolution optical fiber image transmission bundle |
| CN202383318U (en) * | 2011-12-19 | 2012-08-15 | 中国建筑材料科学研究总院 | 4mu optical fiber panel |
| CN104102924A (en) * | 2014-07-23 | 2014-10-15 | 上海思立微电子科技有限公司 | Fingerprint identification device and fingerprint identification assembly with mould pressing protection layer |
| CN104318204A (en) * | 2014-09-29 | 2015-01-28 | 上海箩箕技术有限公司 | Fingerprint imaging system and method, fingerprint identification system, electronic apparatus |
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Patent Citations (7)
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|---|---|---|---|---|
| CN1733636A (en) * | 2005-08-16 | 2006-02-15 | 长春理工大学 | Method for manufacturing optical fibre screen by multifilament |
| CN101045337A (en) * | 2006-03-27 | 2007-10-03 | 冠德光电科技股份有限公司 | Two-stage multiple-colour distructive optic fiber, and its method |
| US20070272020A1 (en) * | 2006-05-25 | 2007-11-29 | Schneider John K | Biometrical Object Reader Having An Ultrasonic Wave Manipulation Device |
| CN101702045A (en) * | 2009-11-17 | 2010-05-05 | 长飞光纤光缆有限公司 | Method for manufacturing high-resolution optical fiber image transmission bundle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111373465A (en) * | 2018-01-31 | 2020-07-03 | 索尼公司 | Display device and optical apparatus |
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| CN105988161B (en) | 2019-03-12 |
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