CN104063094B - Touch screen with fingerprint recognition function, terminal device and fingerprint recognition method - Google Patents
Touch screen with fingerprint recognition function, terminal device and fingerprint recognition method Download PDFInfo
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- CN104063094B CN104063094B CN201410313078.9A CN201410313078A CN104063094B CN 104063094 B CN104063094 B CN 104063094B CN 201410313078 A CN201410313078 A CN 201410313078A CN 104063094 B CN104063094 B CN 104063094B
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Abstract
The invention discloses a touch screen with a fingerprint recognition function, a terminal device and a fingerprint recognition method. The touch screen comprises a transparent cover plate, a semiconductor film arranged on the transparent cover plate and a fingerprint sensor attached to the lower portion of the transparent cover plate, wherein semiconductor stripes are formed on the semiconductor film at intervals, the fingerprint sensor comprises a first fingerprint detection electrode and second fingerprint detection electrode, the first fingerprint detection electrode is arranged between detection electrodes of a position sensor of the touch screen and is parallel to the detection electrodes of the position sensor in a spaced mode. The touch screen can be used in a view area of the terminal device comprising the touch screen to carry out fingerprint recognition, and the detection electrodes of the fingerprint recognition sensor and the detection electrodes of the position sensor of the touch screen are made to be of the same structure.
Description
Technical field
The present invention relates to fingerprint identification technology field, more particularly to a kind of touch screen with fingerprint identification function, terminal
Equipment and fingerprint identification method.
Background technology
In recent years, with the development of memory technology, terminal unit such as smart mobile phone, panel computer etc. are stored with a large amount of personal
The capsule information such as information, its safety becomes even more important.It is many at present to realize setting its terminal using forms such as password, figures
Standby cryptoguard.
However, for cipher modes such as password, figures, user need to remember password and/or the figure for setting；Additionally, in public affairs
Altogether, also there is the danger of password leakage in occasion.And in order to improve safety, the complexity for increasing password and figure is generally required,
This undoubtedly further increase user memory difficulty, cause it is safe with it is easy-to-use between conflict.
Fingerprint is made up of the rough lines of finger surface skin, is the unique feature of human body, its complicated journey
Degree can provide for the enough features for recognizing.Fingerprint recognition be using the characteristics of fingerprint uniqueness and stability realizing identity
Identification, and without the need for user's memory.
Capacitance type fingerprint identification sensor forms conducting channel on base material substrate, when finger and sensor contacts, leads to
Cross the projection of fingerprint ridge and the different capacitances produced by the depression of fingerprint valley to detect fingerprint pattern.
When by fingerprint Identification sensor to carry out fingerprint recognition, the finger print face of people and fingerprint Identification sensor it
Between distance can not be hardly formed accurate fingerprint pattern too far, if hypertelorism.
The content of the invention
The invention provides a kind of touch screen with fingerprint identification function, can be in the visible area comprising its terminal unit
Implement fingerprint recognition, and be total to can the detecting electrode of the position sensor in the detecting electrode and touch screen of fingerprint Identification sensor
Structure.
The additional aspect and advantage of the present invention will be set forth in part in the description, and partly will be from description
It is apparent from, or can the acquistion by the practice of the present invention.
One aspect of the present invention provides a kind of touch screen with fingerprint identification function, including：Transparent cover plate；Semiconductor film
Film, it is formed on the transparent cover plate, and the quasiconductor striped being spaced is formed with thereon；And, fingerprint sensor,
It is fitted under the transparent cover plate, including the first fingerprint detection electrode and the second fingerprint detection electrode, wherein described first
Fingerprint detection electrode is arranged between the detecting electrode in the position sensor of the touch screen, and with the position sensor
Detecting electrode is parallel and compartment of terrain arranges.
In one embodiment, the second fingerprint detection electrode is approximately perpendicular to the detecting electrode of the position sensor
Arrange, and the detecting electrode of the position sensor be divided into into two parts, the detecting electrode per the part position sensor with
Gap is left between the second fingerprint detection electrode；Insulation film is coated with the second fingerprint detection electrode；In institute
State and be formed with insulation film conductive film, the detecting electrode of position sensor described in two parts is electrically connected.
In another embodiment, the first fingerprint detection electrode is separately positioned on the detection electricity of the position sensor
Include between pole：The first fingerprint detection electrode is separately positioned on partly between the detecting electrode of the position sensor.
In further embodiment, described between the detecting electrode in be arranged at the position sensor of the touch screen
When first fingerprint detection electrode is a plurality of, arrange at equal intervals between a plurality of first fingerprint detection electrode, and its spacing
Scope is 40 μm -60 μm；The width range of the first fingerprint detection electrode is 20 μm -45 μm；The second fingerprint detection electricity
The width range of pole is 20 μm -45 μm.
In further embodiment, the touch screen that should have fingerprint identification function also includes：Process circuit, the process electricity
Road includes：First switch circuit；Second switch circuit；3rd on-off circuit；Fingerprint recognition circuit submodule, it passes through described
One on-off circuit is electrically connected with the fingerprint sensor；Location recognition circuit submodule, its pass through the second switch circuit with
The position sensor electrical connection；Charging circuit submodule, it is by the 3rd on-off circuit and the location recognition circuit
Submodule is electrically connected, to launch radio frequency high tension electric current to the position sensor by the location recognition circuit submodule；With
And, signal processing submodule, its respectively with the fingerprint recognition circuit submodule, the location recognition circuit submodule, described
Charging circuit submodule and the position sensor are electrically connected, to control the position sensor with the fingerprint Identification sensor
Be used alternatingly.
In further embodiment, the charging circuit submodule includes：Radio-frequency signal generator and booster.
In further embodiment, the touch screen that should have fingerprint identification function also includes：Protective layer, it is formed at described
On semiconductive thin film.
In further embodiment, the protective layer is for by the AF films for spraying or thermal evaporation is formed.
In further embodiment, the quasiconductor striped being spaced is formed with the semiconductive thin film to be included：In institute
State and the quasiconductor striped being spaced is formed with the subregion of semiconductive thin film.
In further embodiment, the semiconductor film material includes：Semi-conducting polymer, indium tin oxide, zinc-tin
Oxide.
In further embodiment, the semiconductive thin film is made by evaporating deposition technique, the evaporating deposition technique
Including：Electron beam evaporation, magnetron sputtering.
In further embodiment, the touch screen that should have fingerprint identification function also includes：Image processing module, for spelling
Connect the pattern of the fingerprint Identification sensor scanning.
Another aspect of the present invention provides a kind of terminal unit, including：Any of the above-described kind has touching for fingerprint identification function
Control screen.
Further aspect of the present invention is applied to any of the above-described kind of finger with the touch screen of fingerprint identification function there is provided a kind of
Stricture of vagina recognition methodss, including：When needing to carry out fingerprint recognition, if sensing the finger touch signal of user in ad-hoc location,
Radio frequency high tension electric current is then sent to the detecting electrode of the position sensor of the touch screen；The radio frequency high tension electric current is applied to
Semiconductive thin film；And, by finger contact with the semiconductive thin film of the user, the radio frequency high tension electric current is entered
In being mapped to the finger of the user.
In one embodiment, the fingerprint identification method also includes：When needing to carry out fingerprint recognition, if in certain bits
The finger touch signal for sensing user is put, then closes the function of the position sensor.
In further embodiment, the fingerprint identification method also includes：Start the fingerprint Identification sensor of the touch screen
Function, fingerprint recognition is carried out to the finger of the user.
In further embodiment, the radio frequency high tension electric current is applied to into semiconductive thin film includes：Charged by coupling
Mode, the radio frequency high tension electric current is applied in the semiconductive thin film.
The touch screen with fingerprint identification function of the embodiment of the present invention, by with touch function terminal unit in
Position sensor compatible design, it is possible to achieve provide fingerprint recognition region in the visible area of terminal unit, and for example by soft
Part is designed points out user the region of the fingerprint recognition in visible area relevant position, user-friendly；Additionally, when it is applied to
Transparent cover plate during terminal unit, without the need for destroying terminal unit integration, it is ensured that the original appearance of terminal unit structure.
Description of the drawings
Its example embodiment is described in detail by referring to accompanying drawing, above and other feature and advantage of the present invention will become
Become apparent from.
Fig. 1 is the structural representation of the touch screen with fingerprint identification function of the embodiment of the present invention.
Fig. 2 is the structural representation of the semiconductive thin film of the embodiment of the present invention.
Fig. 3 is the structural representation of the fingerprint recognition processing module of the embodiment of the present invention.
Fig. 4 is the structural representation of the position sensor of the terminal unit of prior art.
Fig. 5 is the transmitting thin layer of the position sensor of prior art and receives thin layer schematic diagram.
Fig. 6 is the structural representation of the fingerprint Identification sensor of the embodiment of the present invention.
Fig. 7 is the processing technology schematic diagram of the fingerprint detection emission electrode of the embodiment of the present invention.
Fig. 8 is the fingerprint pattern schematic diagram that fingerprint Identification sensor is scanned.
Specific embodiment
Example embodiment is described more fully with referring now to accompanying drawing.However, example embodiment can be with various shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein；Conversely, thesing embodiments are provided so that the present invention will
Fully and completely, and by the design of example embodiment those skilled in the art is comprehensively conveyed to.Identical is attached in figure
Icon note represents same or similar structure.
Described feature or structure can be combined in any suitable manner in one or more embodiments.Under
In the description in face, there is provided many details fully understand so as to be given to embodiments of the present invention.However, this area skill
Art personnel will be appreciated that does not have one or more in the specific detail, or using other methods, constituent element etc., may be used yet
To put into practice technical scheme.In other cases, known features or operation are not shown in detail or described to avoid mould
The paste present invention.
Fig. 1 is the structural representation of the touch screen with fingerprint identification function of the embodiment of the present invention.As shown in figure 1, should
Touch screen 1 includes：Transparent cover plate 11, semiconductive thin film 12 and fingerprint Identification sensor 13.
Semiconductive thin film 12 is formed on transparent cover plate 11, can be located on whole or the local of semiconductive thin film 12, preferably
Partially, for example the mid portion in semiconductive thin film 12 as shown in Figure 2, by technologies such as photoetching, formation is spaced
Striped 121, with avoid coupling charge when be interconnected.
The material of semiconductive thin film 12 includes：Semi-conducting polymer, indium tin oxide, and zinc tin oxide etc..
Semiconductive thin film 12 is, for example, the zinc tin oxide thin film being prepared from by vacuum deposition method, and concrete composition is by oxygen
Change zinc (ZnO) and tin ash (SnO2) mixing composition.Evaporating deposition technique includes：Electron beam evaporation, magnetron sputtering etc..
Using the semiconductor property of material, when coupling charging is not carried out to it, the electric conductivity of semiconductive thin film tends to
Insulation, so as to not affect operation of the finger to the position sensor under terminal unit transparent cover plate；Penetrate when semiconductor layer is applied in
During frequency high-voltage charging, the electric conductivity of semiconductive thin film tends to conductor, can be small to finger input so as to pass through coupling charging
Current radio frequency signal.Semiconductive thin film 12 is lithographically the width of the part of striped 121 being spaced and is substantially adapted to human body handss
The width of finger, so as to provide the region for fingerprint recognition for finger, such as by software in the area to bar shaped should be lithographically
Domain shows fingerprint identification area field prompt to user, but the present invention is not limited.
The local of semiconductive thin film 12 is lithographically the striped 121 being spaced, partly in order to avoiding coupling from charging
When integrally turn on；On the other hand it is then that, for charging to finger local, and the fingerprint recognition below finger remainder correspondence is passed
Sensor 13 carries out fingerprint recognition.
Additionally, in order to protect semiconductive thin film 12, layer protective layer 14 can also be formed on semiconductive thin film 12.Protection
Layer 14 is for example formed by spraying technology or thermal evaporation techniques, and the material of protective layer is AF films, and AF films are also referred to as anti-fingerprint film, are one
Kind of silicon fluoride long-chain compound, due to anti-fingerprint film be it is a kind of there is relatively low capillary material, therefore Water-proof and oil-proof and easily
Dirt-removing power is splendid, while also crocking resistance, can play a part of to protect semiconductive thin film.
The touch screen 1 with fingerprint identification function of the embodiment of the present invention can be applicable to the terminal unit with touch controllable function
In, such as smart mobile phone, panel computer etc..In order that the fingerprint Identification sensor in the touch screen 1 with fingerprint identification function
13 also include with position sensor (TP sensor) collaborative work, the touch screen 1：Fingerprint recognition processing module 15.
Fig. 3 is the structural representation of the fingerprint recognition processing module of the embodiment of the present invention.As shown in figure 3, at fingerprint recognition
Reason module 15 includes：Signal processing submodule 151, fingerprint recognition circuit submodule 152, location recognition circuit submodule 153 and
Charging circuit submodule 154, wherein charging circuit submodule 154 further include radio-frequency signal generator and booster.
Signal processing submodule 151 respectively with fingerprint recognition circuit submodule 152, location recognition circuit submodule 153 and
Charging circuit submodule 154 is electrically connected.
Signal processing submodule 151 goes back electrically connecting position sensor and fingerprint Identification sensor 13, and wherein fingerprint recognition is passed
Sensor 13 is arranged among position sensor, and both share a structure, and fingerprint Identification sensor 13 is simultaneous with position sensor
It is installed with meter described in detail later.
Additionally, fingerprint recognition processing module 15 also includes：First switch circuit 155, second switch circuit 156 and the 3rd is opened
Powered-down road 157.
Wherein, fingerprint recognition circuit submodule 152 is electrically connected by first switch circuit 155 with fingerprint Identification sensor 13
Connect；Location recognition circuit submodule 153 is electrically connected by second switch circuit 156 with position sensor；Charging circuit submodule
154 are electrically connected by the 3rd on-off circuit 157 with location recognition circuit submodule 153.
The operation principle of fingerprint recognition processing module 15 is as follows：
Step 1, when needing to carry out fingerprint recognition, for example, carries out fingerprint recognition, further by software prompt user
The prompting also includes showing fingerprint recognition region, when position sensor detects finger touch signal, if for example by soft
Part specifies specific fingerprint recognition region, then touch when position sensor detects finger in the specific fingerprint recognition region
During signal, signal processing submodule 151 is fed back to by location recognition circuit submodule 153；
Step 2, when the finger that signal processing submodule 151 receives the feedback of location recognition circuit submodule 153 touches letter
Number when, by the closed position identification circuit submodule 153 of second switch circuit 156, so as to the position in the sensor of closed position
Detecting element, position detecting element includes；Position detection emission electrode (TP Tx) and position detection receiving electrode (TP Rx)；
Step 3, signal processing submodule 151 starts the radio-frequency signal generator 1541 in charging circuit submodule 154, and
Charging circuit submodule 154 and location recognition circuit submodule 153 are connected by the 3rd on-off circuit 157, by radio frequency high tension (model
Enclose：50V-200V) electric current is transported to the TP Tx for specifying by location recognition circuit submodule 153, and TP Tx are to transparent cover plate 11
The coupling of striped 121 being spaced on the semiconductive thin film 12 on surface is charged, and is increased so as to radio frequency small current is input into into finger
Rival refers to penetration of the electric field line to transparent cover plate 11, wherein the TP Tx for specifying for example include it is corresponding with the position of striped 121
TP Tx；
Step 4, signal processing submodule 151 by first switch circuit 156 connect fingerprint recognition circuit submodule 152 with
Fingerprint Identification sensor 13, so as to start fingerprint Identification sensor 13；
Step 5, after completing fingerprint recognition, signal processing submodule 151 is opened respectively by first switch circuit 155 and the 3rd
The electrical connection of fingerprint recognition circuit submodule 152 and fingerprint Identification sensor 13, and charging circuit submodule are closed in powered-down road 157
154 with the electrical connection of location recognition circuit submodule 153, and by the electrically connecting position identification circuit of second switch circuit 156
Module 153 and position sensor, reopen the position detecting element in position sensor, and then reopen position sensor
Function.
Using the semiconductor property of the material of semiconductive thin film 12, when coupling charging is not carried out to it, semiconductive thin film 12
Electric conductivity tend to insulation, so as to not affect operation of the finger to 11 times position sensors of transparent cover plate；When semiconductor layer quilt
When applying radio frequency high tension charging, the electric conductivity of semiconductive thin film tends to conductor.Can be small to finger input by coupling charging
Current radio frequency signal, so as to improve penetration of the finger electric field to transparent cover plate 11.
Position sensor during the fingerprint Identification sensor 13 of the embodiment of the present invention and terminal unit is further elucidated below
Compatibling problem.
Fig. 4 is the structural representation of the position sensor of the terminal unit of prior art.As shown in figure 4, existing terminal
The position sensor of equipment includes：Transparent cover plate, the transmitting thin layer being made up of a plurality of TP Tx and it is made up of a plurality of TP Rx
Reception thin layer.
When the touch screen 1 with fingerprint identification function of the embodiment of the present invention is placed in terminal unit, transparent cover plate 11
For example can be the transparent cover plate of the terminal unit, the transparent cover plate is, for example, the bases such as strengthens glass, sapphire glass or PMMA
Material.
The part that bar shaped is lithographically in semiconductive thin film 12 may be located at the visible area of terminal unit, it is also possible to positioned at terminal
The non-visible area of equipment, wherein being preferably placed at the visible area of terminal unit.
Fig. 5 is the transmitting thin layer of the position sensor of prior art and receives thin layer schematic diagram.Wherein (a) is transmitting
Thin layer schematic diagram, (b) to receive thin layer schematic diagram, as shown in figure 5, the arrangement of a plurality of TP Tx parallel intervals, a plurality of TP Rx
Similarly parallel interval arrangement, the direction of TP Tx and TP Rx is substantially vertical setting.
Fig. 6 is the structural representation of the fingerprint Identification sensor of the embodiment of the present invention.The fingerprint recognition of the embodiment of the present invention
Sensor 13 includes fingerprint detection element, and fingerprint detection element includes：Fingerprint detection emission electrode (FP Tx) connects with fingerprint detection
Receive electrode (FP Rx).Fingerprint detection element is for example made by tin indium oxide (ITO) material.
By interting FP Tx between all or part of TP Tx, realize fingerprint Identification sensor with position sensor
Compatibility, interts FP Tx preferably between the TP Tx of part.Wherein intert the part of FP Tx substantially with the glazing of semiconductive thin film 12
It is carved with the region correspondence of the striped 121 being spaced.
As shown in fig. 6, intert at least one FP Tx for example between two adjacent TP Tx, as a plurality of FP Tx of insertion
When, a plurality of FP Tx are arranged in parallel and equidistantly, and spacing range is 40 μm -60 μm.FP Rx are generally perpendicular to TP Tx and FP
Tx is arranged.The width range of FP Tx and FP Rx is 20 μm -45 μm.
Fig. 7 is the processing technology schematic diagram of the fingerprint detection emission electrode of the embodiment of the present invention.
First by technologies such as photoetching, the cabling of TP Tx and FP Rx is made the pattern as shown in Fig. 7 (a).Wherein, TP
Tx is divided to to leave gap g between upper and lower two sections, and every section of TP Tx and FP Rx by FP Rx, with ensure upper and lower TP Tx with
Electrical connection is not produced between FP Rx.
Afterwards, as shown in Fig. 7 (b), OCA glue or PSA glue insulation films are printed on FP Rx, in order to reach preferably absolutely
Edge effect, the width that the width of insulation film can be than FP Rx is wide, but the present invention is not limited.
Finally, as shown in Fig. 7 (c), then conductive film such as molybdenum is continuously plated using vacuum magnetic-control sputtering on insulation film
Aluminum molybdenum (MoAlMo) metallic film, and be lithographically it is linear, to connect upper and lower two sections of TP Tx, so as to realize TP Tx upper and lower two
Connection between section, and have the insulation between TP Tx and FPRx concurrently.
Fig. 8 is the fingerprint pattern schematic diagram that fingerprint Identification sensor is scanned.Wherein, Fig. 8 (a) is finger of the prior art
The fingerprint pattern that stricture of vagina identification sensor is scanned, due to the fingerprint Identification sensor 13 of the embodiment of the present invention in, wear in FP Tx
Inserted TP Tx lines, so shown in the fingerprint pattern for scanning such as Fig. 8 (b), therefore the present invention with fingerprint identification function
Touch screen 1 also includes image processing module, for example to pass through software mode to passing through the figure that fingerprint Identification sensor 13 is scanned
Case is spliced, to form the fingerprint pattern as shown in Fig. 8 (b).
Although the fingerprint pattern as shown in Fig. 8 (b) has lacked partial fingerprints pattern, fingerprint recognition is by characteristic point
Match after being chosen, as long as so remain enough fingerprint feature point information, can equally complete the identification to fingerprint.
The touch screen with fingerprint identification function of the embodiment of the present invention, by with touch function terminal unit in
Position sensor compatible design, it is possible to achieve provide fingerprint recognition region in the visible area of terminal unit, and for example by soft
Part is designed points out user the region of the fingerprint recognition in visible area relevant position, user-friendly；Additionally, when it is applied to
Transparent cover plate during terminal unit, without the need for destroying terminal unit integration, it is ensured that the original appearance of terminal unit structure.
More than it is particularly shown and described the illustrative embodiments of the present invention.It should be understood that the invention is not restricted to institute
Disclosed embodiment, on the contrary, it is intended to cover comprising various modifications within the scope of the appended claims and equivalent put
Change.
Claims (17)
1. a kind of touch screen with fingerprint identification function, it is characterised in that include：
Transparent cover plate；
Semiconductive thin film, it is formed on the transparent cover plate, and the quasiconductor striped being spaced is formed with thereon；With
And,
Fingerprint sensor, it is fitted under the transparent cover plate, including the first fingerprint detection electrode and the second fingerprint detection electricity
Pole, wherein the first fingerprint detection electrode is arranged between the detecting electrode in the position sensor of the touch screen, and with
The detecting electrode of the position sensor is parallel and compartment of terrain arranges；
Wherein, when needing to carry out fingerprint recognition, if sensing the finger touch signal of user in ad-hoc location, transmission is penetrated
Detecting electrode of the frequency high-tension current to the position sensor of the touch screen；The radio frequency high tension electric current is applied to into semiconductor film
Film；And the contact with the semiconductive thin film of the finger by the user, the radio frequency high tension electric current is incided described
In the finger of user.
2. the touch screen with fingerprint identification function according to claim 1, it is characterised in that second fingerprint detection
Electrode is approximately perpendicular to the detecting electrode of the position sensor and arranges, and the detecting electrode of the position sensor is divided into into two
Part, between the detecting electrode and the second fingerprint detection electrode per the part position sensor gap is left；It is described
Insulation film is coated with second fingerprint detection electrode；Conductive film is formed with the insulation film, by two parts institute
State the detecting electrode electrical connection of position sensor.
3. the touch screen with fingerprint identification function according to claim 2, it is characterised in that first fingerprint detection
Electrode is separately positioned between the detecting electrode of the position sensor to be included：The first fingerprint detection electrode is separately positioned on
Partly between the detecting electrode of the position sensor.
4. the touch screen with fingerprint identification function according to claim 1 and 2, it is characterised in that described when being arranged at
When the first fingerprint detection electrode between detecting electrode in the position sensor of touch screen is a plurality of, described a plurality of first
Arrange at equal intervals between fingerprint detection electrode, and its spacing scope is 40 μm -60 μm；The first fingerprint detection electrode
Width range is 20 μm -45 μm；The width range of the second fingerprint detection electrode is 20 μm -45 μm.
5. the touch screen with fingerprint identification function according to claim 1 and 2, it is characterised in that also include：Process electricity
Road, the process circuit includes：
First switch circuit；
Second switch circuit；
3rd on-off circuit；
Fingerprint recognition circuit submodule, it is electrically connected by the first switch circuit with the fingerprint sensor；
Location recognition circuit submodule, it passes through the second switch circuit and electrically connects with the position sensor；
Charging circuit submodule, it is electrically connected by the 3rd on-off circuit with the location recognition circuit submodule, with logical
Cross the location recognition circuit submodule and launch radio frequency high tension electric current to the position sensor；And,
Signal processing submodule, its respectively with the fingerprint recognition circuit submodule, the location recognition circuit submodule, described
Charging circuit submodule and the position sensor are electrically connected, to control the position sensor with the fingerprint Identification sensor
Be used alternatingly.
6. the touch screen with fingerprint identification function according to claim 5, it is characterised in that the charging circuit submodule
Block includes：Radio-frequency signal generator and booster.
7. the touch screen with fingerprint identification function according to claim 1 and 2, it is characterised in that also include：Protection
Layer, it is formed on the semiconductive thin film.
8. the touch screen with fingerprint identification function according to claim 7, it is characterised in that the protective layer is to pass through
Spraying or thermal evaporation and the AF films that formed.
9. the touch screen with fingerprint identification function according to claim 1 and 2, it is characterised in that the semiconductor film
The quasiconductor striped being spaced is formed with film to be included：It is formed with the subregion of the semiconductive thin film and is spaced
Quasiconductor striped.
10. the touch screen with fingerprint identification function according to claim 1 and 2, it is characterised in that the semiconductor film
Membrane material includes：Semi-conducting polymer, indium tin oxide, zinc tin oxide.
11. touch screens with fingerprint identification function according to claim 1 and 2, it is characterised in that the semiconductor film
Film is made by evaporating deposition technique, and the evaporating deposition technique includes：Electron beam evaporation, magnetron sputtering.
12. touch screens with fingerprint identification function according to claim 1 and 2, it is characterised in that also include：Image
Processing module, for splicing the pattern of the fingerprint Identification sensor scanning.
A kind of 13. terminal units, it is characterised in that include according to any one of claim 1-12 with fingerprint recognition work(
The touch screen of energy.
A kind of 14. fingerprint identification methods for being applied to the touch screen with fingerprint identification function, the touch screen includes transparency cover
Plate, semiconductive thin film and fingerprint sensor；The semiconductive thin film is formed on the transparent cover plate, and that are formed with thereon
The quasiconductor striped at this interval；The fingerprint sensor is fitted under the transparent cover plate, including the first fingerprint detection electrode
With the second fingerprint detection electrode, wherein the first fingerprint detection electrode is arranged at the inspection in the position sensor of the touch screen
Survey between electrode, and and compartment of terrain parallel with the detecting electrode of the position sensor arranges；Characterized in that, the fingerprint is known
Other method includes：
When needing to carry out fingerprint recognition, if sensing the finger touch signal of user in ad-hoc location, radio frequency is sent high
Detecting electrode of the current voltage to the position sensor of the touch screen；
The radio frequency high tension electric current is applied to into semiconductive thin film；And,
By finger contact with the semiconductive thin film of the user, the radio frequency high tension electric current is incided into the user
Finger in.
15. fingerprint identification methods according to claim 14, it is characterised in that also include：Needing to carry out fingerprint recognition
When, if sensing the finger touch signal of user in ad-hoc location, close the function of the position sensor.
16. fingerprint identification methods according to claim 14, it is characterised in that also include：Start the finger of the touch screen
The function of stricture of vagina identification sensor, to the finger of the user fingerprint recognition is carried out.
17. fingerprint identification methods according to claim 14, it is characterised in that the radio frequency high tension electric current is applied to into half
Conductor thin film includes：By way of coupling is charged, the radio frequency high tension electric current is applied in the semiconductive thin film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410313078.9A CN104063094B (en) | 2014-07-02 | 2014-07-02 | Touch screen with fingerprint recognition function, terminal device and fingerprint recognition method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410313078.9A CN104063094B (en) | 2014-07-02 | 2014-07-02 | Touch screen with fingerprint recognition function, terminal device and fingerprint recognition method |
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| CN104063094B true CN104063094B (en) | 2017-05-10 |
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