CN105988161B - Production method, fibre optic plate, fingerprint imaging mould group and the mobile terminal of fibre optic plate - Google Patents
Production method, fibre optic plate, fingerprint imaging mould group and the mobile terminal of fibre optic plate Download PDFInfo
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- CN105988161B CN105988161B CN201510086486.XA CN201510086486A CN105988161B CN 105988161 B CN105988161 B CN 105988161B CN 201510086486 A CN201510086486 A CN 201510086486A CN 105988161 B CN105988161 B CN 105988161B
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Abstract
A kind of production method of fibre optic plate, fibre optic plate, fingerprint imaging mould group and mobile terminal, wherein the production method of fibre optic plate includes: that will sinter barred body into after coloured fibril and colourless fibril permutation and combination；The coloured fibril or colourless fibril permutation and combination are at setting pattern or character；The setting pattern or character are formed on barred body made of the sintering；The barred body is cut into plates, the plates are fibre optic plate.When using fibre optic plate of the present invention as cover sheet, the pattern or character of setting are had on cover sheet；It no longer needs to through the screen printing pattern on cover sheet or character, then fingerprint imaging mould group will not influence the imaging effect of fingerprint imaging mould group because of ink.
Description
Technical field
The present invention relates to fibre optic plate technical fields, and in particular to a kind of production method of fibre optic plate, fibre optic plate, fingerprint imaging
Mould group and mobile terminal
Background technique
With reference to Fig. 1, some patterns of meeting silk-screen or character, pass through below the display screen 11 of the mobile terminal 10 of the prior art
Pattern or character can play mark action.
It continues to refer to figure 1, Fig. 1 is the mobile terminal 10 with fingerprint identification function, and fingerprint imaging mould group 12 is mounted on shifting
The underface of the display screen 11 of dynamic terminal 10, and the position simultaneously can also screen printing pattern or character, then, fingerprint imaging mould group
12 occupy the position of pattern or character；When design or by the cover sheet of pattern or character printing to fingerprint imaging mould group 12
On；The side that pattern or character move on to fingerprint imaging mould group 12 is placed.
If by pattern or the direct silk-screen of character to the cover sheet of fingerprint imaging mould group 12, due to ink thickness and
Translucency can then reduce the performance of fingerprint imaging mould group 12；For capacitive fingerprint imaging mould group, the thickness of ink be will affect
To capacitance size, and then imaging effect is influenced, so the thickness control of ink is more demanding；For the fingerprint imaging of optical profile type
Mould group, the color of ink influences whether translucency, and then influences imaging effect；And the ink of silk-screen can not in the presence of certain
By property, over time, the risk that pattern or character fall off is bigger；If pattern or character are moved on to fingerprint imaging mould group 12
Side is placed, and it is not beautiful enough in appearance that this results in mobile terminal 10.
Summary of the invention
Problems solved by the invention is the mobile terminal that the prior art has fingerprint identification function, the silk-screen on cover sheet
When pattern or character, ink will affect the imaging effect of fingerprint imaging mould group.
To solve the above problems, the present invention provides a kind of production method of fibre optic plate, comprising:
Barred body will be sintered into after coloured fibril and colourless fibril permutation and combination；
The coloured fibril or colourless fibril permutation and combination are at setting pattern or character；
The setting pattern or character are formed on barred body made of the sintering；
The barred body is cut into plates, the plates are fibre optic plate.
Optionally, the coloured fibril is by the way that wire drawing after coloured preform heating melting is made；
The colourless fibril is by the way that wire drawing after colourless preform heating melting is made.
Optionally, the coloured preform and the colourless preform include sandwich layer and covering；
The sandwich layer material is silica-doped germanium oxide；
The covering material is silica.
Optionally, the coloured preform and the colourless preform pass through OVD or VAD or MCVD or PCVD
It is made.
Optionally, the sheet body section is rounded or track type or polygon.
The present invention also provides a kind of fibre optic plates, are made using the production method of described in any item fibre optic plates.
Optionally, the setting pattern or character are formed on the fibre optic plate.
The present invention also provides a kind of fingerprint imaging mould group, including cover sheet, the cover sheet is described in any item
Fibre optic plate.
The present invention also provides a kind of mobile terminals, including the fingerprint imaging mould group.
Optionally, the mobile terminal is mobile phone or tablet computer.
Compared with prior art, technical solution of the present invention has the advantage that
The present invention uses fibre optic plate as cover sheet, by sintering stick into after coloured fibril and colourless fibril permutation and combination
Body, barred body are cut into sheet body and fibre optic plate are made；Wherein, coloured fibril or colourless fibril permutation and combination are at setting pattern or word
It accords with, will form the pattern or character of setting on the barred body made of sintering, then, also have setting on the plates after barred body cutting
Pattern or character；When so using fibre optic plate as cover sheet, the pattern or character of setting are had on cover sheet；It is not necessarily to
Again by the screen printing pattern on cover sheet or character, then fingerprint imaging mould group will not influence fingerprint imaging mould because of ink
The imaging effect of group.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of prior art mobile terminal；
Fig. 2 is the structural schematic diagram of fingerprint imaging modules in mobile terminal of the embodiment of the present invention；
Fig. 3 is the sectional view of the fibre optic plate in fingerprint imaging mould group of the embodiment of the present invention；
Fig. 4 is the enlarged drawing of part A in Fig. 3；
Fig. 5 is the structural schematic diagram of fibre optic plate of the embodiment of the present invention, and shows the pattern on fibre optic plate.
Specific embodiment
As described in the prior, the mobile terminal of fingerprint identification function, meeting screen printing pattern on cover sheet
Or character, the principle of silk-screen is: printing plate (producing in paper membrane version or other editions version bases can be by the eyelet of ink) is printing
When, ink is transferred on stock (paper, ceramics etc.) by the eyelet of printing plate by certain pressure, forms pattern or word
Symbol.
And for capacitive fingerprint imaging mould group, using capacitance type sensor；Capacitance type sensor is the machine that will be tested
Tool amount, such as displacement, pressure are converted to the sensor of electric capacitance change；If the thickness of ink is excessive, then the finger of people and electricity
Spacing between capacity sensor becomes larger, and the capacitor between finger and sensor becomes smaller, the electricity between the peak and valley of finger print
Tolerance mutation it is smaller, to influence the precision of capacitance type sensor, and then influence the imaging of capacitance type fingerprint imaging modules
Effect；For the fingerprint imaging mould group of optical profile type, using optical sensor；Optical sensor is after by radiation of visible light
Photoelectric effect is generated, converts optical signals into electric signal output, the color of ink influences whether translucency, to influence light
The received light of formula sensor, and then influence the imaging effect of optical fingerprint imaging modules.
The present invention utilizes the architectural characteristic and manufacturing process of fibre optic plate, and pattern or character are accomplished on fibre optic plate, do not influenced
The imaging performance of fingerprint imaging mould group.
To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.
With reference to Fig. 2, the fingerprint imaging mould group of the embodiment of the present invention includes:
Cover sheet, for providing the contact surface that can place object；Cover sheet, the light are used as using fibre optic plate 100
The upper surface of fine 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；
Optics area array sensor 200, optics area array sensor 200 are located at the back of contact surface described in fibre optic plate 100
On, optics area array sensor 200 is connect by FPC300 and PCB main board (not shown out), and fingerprint imaging mould group is wrapped by shell 400
It wraps up in, shell 400 is metal shell, and shell 400 can protect fingerprint imaging mould group.
With reference to Fig. 3 and Fig. 4, the fibre optic plate 100 in the present embodiment is made of more fibril permutation and combination sintering, wherein fibril
Including fibre core 101 and fine skin 102；Fine skin 102 is wrapped in outside fibre core 101, plays the role of protecting fibre core 101；The system of fibre optic plate
It is main to make process are as follows: firstly, production preform；Then, wire drawing is carried out to the preform of production；Finally, to wire drawing
Obtained fibril permutation and combination sinters barred body into, and cutting barred body obtains fibre optic plate.
The specific manufacturing process of fibre optic plate is as follows:
The production of preform:
Preform abbreviation optical wand is a kind of quartz glass bar for having certain index distribution on cross section；According to
The difference of refractive index, optical wand can be divided into two parts of sandwich layer and covering from structure, and the refractive index of sandwich layer is higher, is by high-purity
SiO2The material doped higher high-purity GeO of refractive index2What material was constituted, covering is by high-purity Si O2Material is constituted.
Sandwich layer and covering are produced into preform by following any method:
Modified chemical vapor deposition process (MCVD) (MCVD:Modified Chemical Vapour Deposition)；
Vapour phase axial deposition technique (VAD:Vapour phase Axial Deposition)；
Stick outer chemical vapour deposition process (OVD:Outside Chemical Vapour Deposition)；
Plasma activates chemical vapour deposition technique (PCVD:Plasma activated Chemical Vapour
Deposition)。
The preform and coloured preform of transparent (colourless) are produced by above-mentioned any method,
Coloured preform is to form colored light fibre prefabricated rods after colourless preform adds pigment during the sintering process.
Wire drawing:
Drawing process is usually to complete in wire-drawer-tower, and wire-drawer-tower specifically includes that
High temperature furnace: for being heated to preform, so that preform is at molten condition；
Laser diameter measuring instrument: for measuring whether fibril meets defined diameter criteria；
Applicator: for coating protective coating to fibril；
Curing oven: for protective coating to be solidificated in fibril surface；
Wire drawing wheel: for collecting qualified fibril.
Specific drawing process is as follows:
High temperature furnace makes preform (2000 DEG C~2200 DEG C) meltings at high temperature；
The preform of melting forms filament under gravity toward sagging, and filament is fibril；
Fibril is after laser diameter measuring instrument detection reaches standard, and the outer diameter control of general fibril is in 125 ± 1 μm of (initial one
Drip melting heat glass to pull out from the bottom of prefabricated rods, the starting point to extend into optical fiber, this initial segment of ordinary circumstance is all waste product),
Fibril can pass through applicator；
Protective layer is just coated in fibril surface across applicator；When coating material is not added, fibril is exposed in air,
It is easy the effect by extraneous stress, local stress is concentrated herein, causes intensity extremely low, fibril is easily broken；In order to protect fibre
Silk table face, improves tensile strength and flexural strength, and convenient for practical, needs to give fibril coated with resins material；
The fibril of coated with resins material passes through ultra-violet curing, the then resinous wood coated using curing oven in curing oven
Material is just combined closely on fibril surface, and the fibril after coating is received on spool by wire drawing wheel traction, completes the process of wire drawing, fibril
Diameter about at 6 μm -12 μm.
Wherein, colored light fibre is formed after coloured preform heating melting, coloured drawing optical fibers form coloured fibril；Nothing
Colourless optical fiber is formed after color preform heating melting, colourless drawing optical fibers form colourless fibril.
The production of fibre optic plate:
The coloured fibril permutation and combination that stretching obtains is burnt with colourless fibril permutation and combination again at after setting pattern or character
Form barred body；Alternatively, by colourless fibril permutation and combination at rear coloured fibril permutation and combination sinters into again after setting pattern or character
Barred body；
Be formed on barred body made of being sintered so coloured fibril or colourless fibril permutation and combination at setting pattern or word
Symbol；
Barred body is cut into plates, plates are fibre optic plate, and the section of plates is rounded or track type or polygon
Shape or other shapes.
In the embodiment of the present invention, coloured fibril permutation and combination in other embodiments, has at character " OXI " (referring to Fig. 5)
Color fibril can be with permutation and combination at other patterns or character.
Fibril manufacturing process in the present embodiment can also be as follows:
It will be by high-purity Si O2The material doped higher high-purity GeO of refractive index2The sandwich layer that material is constituted is put into high-purity Si O2Material
In the covering of composition, covering and sandwich layer are combined into pipe stick, and pipe stick sags into silk automatically, then pass through under the action of heating furnace
The traction of pulling wheel carries out one-off drawing, is drawn into the first fibril, the diameter control of the first fibril is in 1mm at this time.
More first fibrils are bundled into barred body, carry out succeeding stretch, after succeeding stretch the diameter control of barred body in 1mm,
The diameter of the intracorporal each fibril of stick in this way can reduce very much；It repeats the above steps, i.e., by the fibril after more succeeding stretch
It is bundled into barred body, is stretched again, until the diameter control of every fibril is at 6 μm -12 μm；Equally, this process can be stretched
Coloured fibril and colourless fibril.
The manufacturing process of above-mentioned fibre optic plate is carried out using the stretched coloured fibril of the above method and colourless fibril.
In addition, the manufacturing process of fibre optic plate of the present invention can also be as follows:
It will be by high-purity Si O2The material doped higher high-purity GeO of refractive index2The sandwich layer that material is constituted is put into high-purity Si O2Material
In the covering of composition, covering and sandwich layer are combined into pipe stick, and pipe stick sags into silk automatically, then pass through under the action of heating furnace
The traction of pulling wheel is drawn into the first fibril, and the diameter control of the first fibril is in 1mm at this time；This process can draw coloured
First fibril and colourless first fibril.
It combines more coloured first fibril permutation and combination with the rearrangement of colourless first fibril at after setting pattern or character
After be bundled into barred body, barred body is thicker at this time；Alternatively, by more colourless first fibril permutation and combination at setting pattern or character after with
Coloured first fibril is bundled into barred body after rearranging combination, and barred body is thicker at this time.
By barred body sintering thicker after above-mentioned tie up, carries out wire drawing again in the molten state, thicker barred body is stretched
Thinner barred body is cut into plates, which is light after completing wire drawing at the thinner barred body for meeting design requirement
Fine plate is formed with setting pattern or character on fibre optic plate.
This process no longer needs to the fibril after stretching and carries out permutation and combination into setting pattern or character, directly arrangement group
It is stretched after synthesis setting pattern or character, improves processing efficiency.
It should be noted that the diameter for the fibril that above-described embodiment is mentioned is with no restrictions, different fibre optic plates is to the straight of fibril
Diameter requires different.
The present invention also provides a kind of mobile terminals, and including the fingerprint imaging mould group, mobile terminal is mobile phone or plate
Computer；The cover sheet of mobile terminal uses the fibre optic plate of the embodiment of the present invention, has setting pattern or character on cover sheet；
No longer need to through the screen printing pattern on cover sheet or character, then fingerprint imaging mould group will not because of ink influence fingerprint at
As the imaging effect of mould group.
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (7)
1. a kind of fingerprint imaging mould group, the fingerprint imaging mould group includes: cover sheet, the cover sheet is fibre optic plate,
It is characterized in that, the production method of the fibre optic plate includes:
Barred body will be sintered into after coloured fibril and colourless fibril permutation and combination；
The coloured fibril or colourless fibril permutation and combination are at setting pattern or character；
The setting pattern or character are formed on barred body made of the sintering；
The barred body is cut into plates, the plates are fibre optic plate, are formed with the setting pattern on the fibre optic plate
Or character.
2. fingerprint imaging mould group as described in claim 1, which is characterized in that the coloured fibril is by coloured predispersed fiber
Wire drawing is made after stick heating melting processed；
The colourless fibril is by the way that wire drawing after colourless preform heating melting is made.
3. fingerprint imaging mould group as claimed in claim 2, which is characterized in that the coloured preform and the non-colored light
Fine prefabricated rods include sandwich layer and covering；
The sandwich layer material is silica-doped germanium oxide；
The covering material is silica.
4. fingerprint imaging mould group as claimed in claim 2, which is characterized in that the coloured preform and the non-colored light
Fine prefabricated rods are made by OVD or VAD or MCVD or PCVD.
5. fingerprint imaging mould group as described in claim 1, which is characterized in that the sheet body section is rounded or track type or
Polygon.
6. a kind of mobile terminal, which is characterized in that including fingerprint imaging mould group described in claim 1.
7. mobile terminal as claimed in claim 6, which is characterized in that the mobile terminal is mobile phone or tablet 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 CN105988161A (en) | 2016-10-05 |
| CN105988161B true CN105988161B (en) | 2019-03-12 |
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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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111373465B (en) * | 2018-01-31 | 2022-07-15 | 索尼公司 | Display device and optical apparatus |
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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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2653202A1 (en) * | 2006-05-25 | 2008-06-05 | Ultra-Scan Corporation | Biometrical object reader having an ultrasonic wave manipulation device |
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2015
- 2015-02-16 CN CN201510086486.XA patent/CN105988161B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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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| CN105988161A (en) | 2016-10-05 |
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