CN102073860A - Optical fingerprint acquisition device, optical fingerprint identification system and method - Google Patents

Optical fingerprint acquisition device, optical fingerprint identification system and method Download PDF

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Publication number
CN102073860A
CN102073860A CN2010106100382A CN201010610038A CN102073860A CN 102073860 A CN102073860 A CN 102073860A CN 2010106100382 A CN2010106100382 A CN 2010106100382A CN 201010610038 A CN201010610038 A CN 201010610038A CN 102073860 A CN102073860 A CN 102073860A
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China
Prior art keywords
finger print
optical
transparent
fingerprint
light
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CN2010106100382A
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Chinese (zh)
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邱勇
胡永岚
张国辉
张祝新
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Tsinghua University
Beijing Visionox Technology Co Ltd
Kunshan Visionox Display Co Ltd
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Tsinghua University
Beijing Visionox Technology Co Ltd
Kunshan Visionox Display Co Ltd
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Priority to CN2010106100382A priority Critical patent/CN102073860A/en
Publication of CN102073860A publication Critical patent/CN102073860A/en
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Abstract

The invention provides an optical fingerprint acquisition device, an optical fingerprint identification system and a method, and the optical fingerprint identification system comprises an optical fingerprint acquisition unit, an optical receiving unit and an information processing unit, wherein the optical fingerprint acquisition unit is used for irradiating fingerprints, enabling fingerprint reflected light obtained after irradiation to effectively penetrate the optical fingerprint acquisition device and transmitting the reflected light to the optical receiving unit; the optical receiving unit is used for receiving the fingerprint reflected light transmitted from the optical fingerprint acquisition device, generating fingerprint image data according to the reflected light and transmitting to the information processing unit; and the information processing unit is used for receiving the fingerprint image data and generating fingerprint identification information according to the fingerprint image data. With the adoption of the invention, an optical structure of the optical fingerprint identification device is simplified, volume of the optical fingerprint identification device is reduced, and installation of the optical fingerprint identification device becomes more convenient.

Description

A kind of optical finger print harvester, optical fingerprint identification system and method
Technical field
The invention relates to fingerprint identification technology, particularly about the fingerprint identification technology based on optical device, is a kind of optical finger print harvester, optical fingerprint identification system and method concretely.
Background technology
In the prior art, the optical finger print recognition methods generally includes: utilize pointolite or electric light source array to send light beam, light beam sees through the glass substrate irradiation by the fingerprint that is pressed in the finger on the glass substrate; The reflected light of fingerprint passes to imageing sensor by glass substrate and optical path, generates fingerprint image data by imageing sensor, and fingerprint image data is carried out fingerprint recognition.
Fig. 1 is the synoptic diagram of an optical fingerprint identification system in the prior art.In this system, the light beam that light source 11 sends shines by the fingerprint that is pressed in the finger on the inclined-plane 16 by right-angle prism 12, the reflected light of fingerprint passes to imageing sensor 14 by the lens on right-angle prism 12 and the optical path 13, generate fingerprint image data by imageing sensor 14, and carry out fingerprint recognition by 15 pairs of fingerprint image datas of fingerprint identification unit.
Yet the light source of existing optical fingerprint identification system can not be arranged on the fingerprint reflected light light path between inclined-plane 16 and the imageing sensor 14, otherwise light source can blocking reflected light.And depart from light source and the prism structure complexity that the reflected light light path is provided with, thereby cause the volume of light fingerprint recognition system big, difficulty is installed.
Summary of the invention
The invention provides a kind of optical finger print harvester, optical fingerprint identification system and method, carry out fingerprint recognition to utilize the planar transparent luminescent device.
To achieve these goals, in one embodiment, the invention provides a kind of optical finger print harvester, this device comprises: transparency carrier and plane transparent luminescent device.
To achieve these goals, in one embodiment, the present invention also provides a kind of optical fingerprint identification system, this system comprises: the optical finger print collecting unit, be used to shine finger print, and make the finger print reflected light that shines the back acquisition effectively see through described optical finger print harvester, and this reflected light is transmitted to light receiving unit; Light receiving unit is used to receive the reflected light of the above-mentioned finger print that is transferred out by the optical finger print harvester, and generates fingerprint image data according to this reflected light, and is transferred to information process unit; Information process unit is used to receive described fingerprint image data, generates fingerprint recognition information according to described fingerprint image data.
Above-mentioned day in order to realize, in one embodiment, the present invention also provides a kind of optical finger print recognition methods, this method comprises: adopt the finger print of rayed gland on the optical finger print harvester from the emission of the planar transparent luminescent device in the optical finger print harvester, and make the finger print reflected light of irradiation back acquisition effectively see through this harvester, and with the step of this reflected light transmission to light receiving unit; Adopt light receiving unit to receive the reflected light of the above-mentioned finger print that transfers out by the optical finger print harvester, and generate fingerprint image data, and be transferred to the step of information process unit according to this reflected light; Adopt information process unit to receive described fingerprint image data, generate the step of fingerprint recognition information according to described fingerprint image data.
Beneficial effect of the present invention is: by using the light source of planar transparent luminescent device as the irradiation finger print, plane face transparent luminescent device is arranged on the catoptrical light path of finger print, thereby simplified the optical texture of optical finger print recognition device, reduced the volume of optical finger print recognition device, and made the installation of optical finger print recognition device more convenient.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.In the accompanying drawings:
Fig. 1 is the structural representation of optical fingerprint identification system of the prior art;
Fig. 2 is the structural representation of embodiment of the invention optical finger print harvester;
Fig. 3 is the sequential organization synoptic diagram of embodiment of the invention optical finger print harvester;
Fig. 4 gathers the light ray propagation synoptic diagram when gathering fingerprint for the optical finger print harvester that adopts Fig. 3;
Fig. 5 is the position view of optical film of optical finger print harvester one embodiment of Fig. 3;
Fig. 6 gathers the light ray propagation synoptic diagram when gathering fingerprint for the optical finger print harvester that adopts Fig. 5;
Fig. 7 is the optical film position view of another embodiment of optical finger print harvester of Fig. 3;
Fig. 8 is the sequential organization synoptic diagram of another embodiment of the present invention optical finger print harvester;
Fig. 9 is the position view of optical film of optical finger print harvester one embodiment of Fig. 8;
Figure 10 is the optical film position view of another embodiment of optical finger print harvester of Fig. 8;
Figure 11 is the transparent touch layer synoptic diagram of the optical finger print harvester of Fig. 3;
Figure 12 is the structured flowchart of embodiment of the invention optical finger print acquisition system;
Figure 13 is the collection light ray propagation synoptic diagram of embodiment of the invention optical finger print acquisition system;
Figure 14 is the collection light ray propagation synoptic diagram of another embodiment of the present invention optical finger print acquisition system;
There is the collection light ray propagation synoptic diagram of the optical finger print acquisition system of optical lens in Figure 15 for the embodiment of the invention;
There is the collection light ray propagation synoptic diagram of the optical finger print acquisition system of optical lens in Figure 16 for another embodiment of the present invention;
Figure 17 is an embodiment of the invention optical finger print recognition methods process flow diagram.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer, the embodiment of the invention is described in further details below in conjunction with accompanying drawing.At this, illustrative examples of the present invention and explanation thereof are used to explain the present invention, but not as a limitation of the invention.
Embodiment one
As shown in Figure 2, the optical finger print harvester of present embodiment comprises: transparency carrier and plane transparent luminescent device.
The material of the transparency carrier of present embodiment can be in glass, plastics or the metal at least a.The planar transparent luminescent device can be transparent organic electroluminescence device (hereinafter to be referred as the OLED device).
The OLED device of present embodiment comprises: two transparency electrodes and the transparent organic electroluminescence cell between two transparency electrodes, two transparency electrodes are respectively a transparent anode and a transparent cathode, the material of transparent cathode can be selected metal for use, and as argent, the present invention is not as limit.
As shown in Figure 3, the structural order of the optical finger print harvester of present embodiment is: transparency carrier, transparent anode, transparent organic electroluminescence cell, transparent cathode.
When the optical finger print harvester that utilizes Fig. 3 carries out fingerprint collecting, gather light ray propagation as shown in Figure 4, finger 405 touches on the transparency carriers 401, shines on the fingerprint of finger 405 after the light that transparent organic electroluminescence cell 403 sends towards transparency carrier 401 directions passes through transparent anode layer 402 and transparency carrier 401 successively.The fingerprint projection contacts with the upper surface of transparency carrier 401 via sweat or grease, the refractive index and the water of sweat or grease are approaching, be about about 1.33, according to the light total reflection principle, total reflection condition is not satisfied in the contact position to the fingerprint projection with the going up table of transparency carrier 401, is mapped to light generation scattering herein; The trench of fingerprint does not contact with prism, is mapped to the light generation total reflection of the transparency carrier 401 upper surface positions of fingerprint trench correspondence.The light of total reflection and the light of part scattering take place pass through transparency carrier 401 successively, transparent anode layer 402 and transparent organic electroluminescent list 403 are gone out from transparent cathode 404 transmissions at last, for the optical sensor collection.
Transparent cathode among Fig. 3 can comprise three layers, is respectively electric charge injection layer, charge-conduction layer and transmission layer, and the material of electric charge injection layer is selected from least a alkaline metal, alkali metal compound, earth alkali metal or alkaline earth metal compound; The material of charge-conduction layer is selected from argent, tin indium oxide, indium zinc oxide; The material of transmission layer can be selected from refractive index greater than 1.2 and less than 2.5 organic material or inorganic material, is selected from Alq 3, magnesium fluoride, silicon monoxide, silicon dioxide, calcium fluoride, zinc selenide, zinc paste, tin indium oxide and indium zinc oxide etc.
The thickness of electric charge injection layer is 0.5nm to 50nm in the transparent cathode layer, the thickness of charge transport layer can be 10nm to 50nm, and the thickness value of transmission layer is added and subtracted respectively in the scope of 10nm after 1/4th the direct projection rate of radiative peak wavelength divided by the transmission layer material.
The cathode construction of OLED device of the present invention can adopt the method preparation of vacuum evaporation, at first under the vacuum evaporation condition, make electric charge injection layer in the cathode layer, and then continue charge-conduction layer and transmission layer in the evaporation transparent cathode layer successively by the compound of direct decomposing metal and compound-material thereof.
The anode material of OLED of the present invention can be selected from tin indium oxide, zinc paste, indium zinc oxide, silver, gold or aluminium.
In the optical finger print harvester of Fig. 3, the optical finger print harvester of present embodiment can also comprise: an optical film, in transparent organic electroluminescence device between transparent organic electroluminescence cell and the transparent cathode, be used for the light that the reflective transparent organic electroluminescence cell sends and see through the fingerprint reflected light, as shown in Figure 5.
When the optical finger print harvester that utilizes Fig. 5 carries out fingerprint collecting, gather light ray propagation as shown in Figure 6, the light that transparent organic electroluminescence cell 403 sends comprises to the light of transparency carrier 401 directions transmission and the light that deviates from the transmission of transparency carrier 401 directions.
For the light to the transmission of transparency carrier 401 directions, finger 405 touches on the transparency carrier 401, and the light that transparent organic electroluminescence cell 403 sends is successively through shining on the fingerprint of finger 405 behind transparent anode layer 402 and the transparency carrier 401.The light of the fingerprint reflection of process finger 405 passes through transparency carrier 401 successively, and transparent anode layer 402 and transparent organic electroluminescent list 403 are gone out from transparent cathode 404 transmissions at last, for the optical sensor collection.
For the light that deviates from the transmission of transparency carrier 401 directions, finger 405 touches on the transparency carrier 401, the light that transparent organic electroluminescence cell 403 sends is reflected by optical film 501, then successively through on the fingerprint that shines finger 405 behind transparent organic electroluminescence cell 403, transparent anode layer 402 and the transparency carrier 401.The light of the fingerprint reflection of process finger 405 passes through transparency carrier 401 successively, and transparent anode layer 402 and transparent organic electroluminescent list 403 are gone out from transparent cathode 404 transmissions at last, for the optical sensor collection.
The optical film of optical finger print harvester is except in the transparent organic electroluminescence device in Fig. 5 between transparent organic electroluminescence cell and the transparent cathode, can also be positioned at outside the transparent organic electroluminescence device, skin at transparent cathode, be used for the light that the reflective transparent organic electroluminescence cell sends and see through the fingerprint reflected light, as shown in Figure 7.
When utilizing the optical finger print harvester of Fig. 7 to carry out fingerprint collecting, it is similar to gather light ray propagation path and Fig. 6, does not repeat them here.
As the distortion of embodiment among Fig. 3, as shown in Figure 8, the structural order of the optical finger print harvester of present embodiment can also be transparency carrier, transparent cathode, transparent organic electroluminescence cell, transparent anode.
In the optical finger print harvester of Fig. 8, the optical finger print harvester of present embodiment can also comprise: an optical film, in transparent organic electroluminescence device between transparent organic electroluminescence cell and the transparent anode, be used for the light that the reflective transparent organic electroluminescence cell sends and see through the fingerprint reflected light, as shown in Figure 9.
The optical film of optical finger print harvester is except in the transparent organic electroluminescence device in Fig. 9 between transparent organic electroluminescence cell and the transparent anode, can also be positioned at outside the transparent organic electroluminescence device, be distributed in the skin of transparent anode, be used for the light that the reflective transparent organic electroluminescence cell sends and see through the fingerprint reflected light, as shown in figure 10.
It is similar to utilize Fig. 8, Fig. 9 and Figure 10 to gather light ray propagation path and Fig. 4 and Fig. 6, does not repeat them here.
OLED device among Fig. 8 is the inversion OLED device of OLED device among Fig. 3, and the OLED preparation of devices is well known technology, is not giving unnecessary details.All utilizing argent with the transparent cathode of being inverted the OLED device and transparent anode is example, and being inverted OLED preparation of devices process can be as follows: the 1) preparation of negative electrode is 10 at vacuum chamber pressure -4Under the condition of Pa, evaporation prepares the silver of 35nm on substrate; 2) preparation of electron injecting layer keeps 10 -4The pressure of Pa is constant, and adopting cesium carbonate is 0.05nm/s in evaporation speed, and the evaporation temperature is to decompose the Cs film of preparing as the electron injecting layer material under 420 conditions of spending, and thickness is 1nm; 3) keep 10 -4The pressure of Pa is constant, evaporation electron transfer layer successively, transparent organic electro luminescent layer, hole transmission layer, hole injection layer; 4) preparation of anode keeps 10 -4The pressure of Pa is constant, and evaporation prepares the silver of 35nm.
As shown in figure 11, the optical finger print harvester of the embodiment of the invention comprises that also one is positioned at the outer field transparent touch layer of transparency carrier, is used to start or close the driving power of described transparent organic electroluminescence device.In addition, a transparent touch layer all can be set on the transparency carrier of Fig. 3, Fig. 5, Fig. 7, Fig. 8, Fig. 9 and Figure 10.
Beneficial effect of the present invention is: the autoluminescence planar transparent light source by using OLED for example is as the light source of irradiation finger print, OLED is arranged on the catoptrical light path of finger print, thereby has simplified the optical texture of optical finger print recognition device.
Embodiment two
As shown in figure 12, the optical fingerprint identification system of present embodiment comprises: optical finger print collecting unit 1201, comprise the optical finger print harvester among Fig. 3, Fig. 5, Fig. 7, Fig. 8, Fig. 9 or Figure 10, be used to shine finger print, and make the finger print reflected light that shines the back acquisition effectively see through described optical finger print harvester, and this reflected light is transmitted to light receiving unit; Light receiving unit 1202 is used to receive the reflected light of the above-mentioned finger print that is transferred out by the optical finger print harvester, and generates fingerprint image data according to this reflected light, and is transferred to information process unit; Information process unit 1203 is used to receive described fingerprint image data, generates fingerprint recognition information according to described fingerprint image data.
Describe the optical fingerprint identification system of present embodiment in detail below in conjunction with Figure 13 to Figure 16, the optical finger print harvester 1201 of Figure 13 is the optical finger print harvester among Fig. 3, gather light ray propagation as shown in figure 13, finger 405 touches on the transparency carriers 401, shines on the fingerprint of finger 405 after the light that transparent organic electroluminescence cell 403 sends towards transparency carrier 401 directions passes through transparent anode layer 402 and transparency carrier 401 successively.The fingerprint projection contacts with the upper surface of transparency carrier 401 via sweat or grease, the refractive index and the water of sweat or grease are approaching, be about about 1.33, according to the light total reflection principle, the fingerprint projection does not satisfy total reflection condition with the upper surface contact position of transparency carrier 401, is mapped to light generation scattering herein; The trench of fingerprint does not contact with prism, is mapped to the light generation total reflection of the transparency carrier 401 upper surface positions of fingerprint trench correspondence.The light of total reflection and the light of part scattering take place pass through transparency carrier 401 successively, transparent anode layer 402 and transparent organic electroluminescent list 403 are gone out from transparent cathode 404 transmissions at last.The light that transmission is gone out is received by imageing sensor 1301 (light receiving unit 1202), imageing sensor 1301 generates fingerprint image data according to this reflected light, and be transferred to image processor 1302 (information process unit 1203), image processor 1302 receives described fingerprint image data, generates fingerprint recognition information according to described fingerprint image data.
Preferably, as shown in figure 14, described light receiving unit 1202 also comprises: optical lens 1401, be arranged on the catoptrical light path of described finger print, and the reflected light of fingerprint is focused on the described light receiving unit.The light of going out from transparent cathode 404 transmissions is before being received by imageing sensor 1301, the light that focuses on through optical lens 1401 is received by imageing sensor 1301 (light receiving unit 1202) earlier, imageing sensor 1301 generates fingerprint image data according to this reflected light, and be transferred to image processor 1302 (information process unit 1203), image processor 1302 receives described fingerprint image data, generates fingerprint recognition information according to described fingerprint image data.
Figure 15 is the collection light ray propagation synoptic diagram of the optical finger print acquisition system corresponding with Fig. 5; As shown in figure 15, the light that sends of transparent organic electroluminescence cell 403 comprises to the light of transparency carrier 401 directions transmission and the light that deviates from the transmission of transparency carrier 401 directions.
For the light to the transmission of transparency carrier 401 directions, finger 405 touches on the transparency carrier 401, and the light that transparent organic electroluminescence cell 403 sends is successively through shining on the fingerprint of finger 405 behind transparent anode layer 402 and the transparency carrier 401.The light of the fingerprint reflection of process finger 405 passes through transparency carrier 401 successively, and transparent anode layer 402 and transparent organic electroluminescent list 403 are gone out from transparent cathode 404 transmissions at last.
For the light that deviates from the transmission of transparency carrier 401 directions, finger 405 touches on the transparency carrier 401, the light that transparent organic electroluminescence cell 403 sends is reflected by optical film 501, then successively through on the fingerprint that shines finger 405 behind transparent organic electroluminescence cell 403, transparent anode layer 402 and the transparency carrier 401.The light of the fingerprint reflection of process finger 405 passes through transparency carrier 401 successively, and transparent anode layer 402 and transparent organic electroluminescent list 403 are gone out from transparent cathode 404 transmissions at last.
All light of going out from transparent cathode 404 transmissions are received by imageing sensor 1301 (light receiving unit 1202), imageing sensor 1301 generates fingerprint image data according to this reflected light, and be transferred to image processor 1302 (information process unit 1203), image processor 1302 receives described fingerprint image data, generates fingerprint recognition information according to described fingerprint image data.
Preferably, as shown in figure 16, described light receiving unit 1202 also comprises: optical lens 1401, be arranged on the catoptrical light path of described finger print, and the reflected light of fingerprint is focused on the described light receiving unit.The light of going out from transparent cathode 404 transmissions is before being received by imageing sensor 1301, the light that focuses on through optical lens 1401 is received by imageing sensor 1301 (light receiving unit 1202) earlier, imageing sensor 1301 generates fingerprint image data according to this reflected light, and be transferred to image processor 1302 (information process unit 1203), image processor 1302 receives described fingerprint image data, generates fingerprint recognition information according to described fingerprint image data.
In addition, the outer field of the transparency carrier 401 of Figure 13 to Figure 16 can also be provided with the transparent touch layer, is used to start or close the driving power of described transparent organic electroluminescence device.
Collection light ray propagation and Figure 13 to Figure 16 of the optical finger print acquisition system corresponding with Fig. 7 to Figure 10 are similar, narrate no longer one by one at this.
Beneficial effect of the present invention is: the autoluminescence planar transparent light source by using OLED for example is as the light source of irradiation finger print, OLED is arranged on the catoptrical light path of finger print, thereby simplified the optical texture of optical finger print recognition device, reduced the volume of optical finger print recognition device, and made the installation of optical finger print recognition device more convenient.
Embodiment three
As shown in figure 17, the optical finger print recognition methods of present embodiment comprises: adopt the finger print of rayed gland on the optical finger print harvester from the emission of the planar transparent luminescent device in the optical finger print harvester, and make the finger print reflected light of irradiation back acquisition effectively see through this harvester, and with the step S1701 of this reflected light transmission to light receiving unit.Adopt light receiving unit to receive the reflected light of the above-mentioned finger print that transfers out by the optical finger print harvester, and generate fingerprint image data, and be transferred to the step S1702 of information process unit according to this reflected light.Adopt information process unit to receive described fingerprint image data, generate the step S1703 of fingerprint recognition information according to described fingerprint image data.
Planar transparent luminescent device in the described optical finger print harvester can be transparent organic electroluminescence device, and transparent organic electroluminescence device comprises transparent OLED device etc.
The optical finger print recognition methods of present embodiment can describe with the optical fingerprint identification system explanation of Figure 13 to Figure 16, and the present invention is that example describes with the optical fingerprint identification system of Figure 16 only.
As shown in figure 16, the light that sends of transparent organic electroluminescence cell 403 comprises to the light of transparency carrier 401 directions transmission and the light that deviates from the transmission of transparency carrier 401 directions.
For the light to the transmission of transparency carrier 401 directions, finger 405 touches on the transparency carrier 401, and the light that transparent organic electroluminescence cell 403 sends is successively through shining on the fingerprint of finger 405 behind transparent anode layer 402 and the transparency carrier 401.The light of the fingerprint reflection of process finger 405 passes through transparency carrier 401 successively, and transparent anode layer 402 and transparent organic electroluminescent list 403 are gone out from transparent cathode 404 transmissions at last.
For the light that deviates from the transmission of transparency carrier 401 directions, finger 405 touches on the transparency carrier 401, the light that transparent organic electroluminescence cell 403 sends is reflected by optical film 501, then successively through shining on the fingerprint of finger 405 behind transparent capable organic electro luminescent unit 403, transparent anode layer 402 and the transparency carrier 401.The light of the fingerprint reflection of process finger 405 passes through transparency carrier 401 successively, and transparent anode layer 402 and transparent organic electroluminescent list 403 are gone out from transparent cathode 404 transmissions at last.
All light of going out from transparent cathode 404 transmissions are before being received by imageing sensor 1301, the light that focuses on through optical lens 1401 is received by imageing sensor 1301 (light receiving unit 1202) earlier, imageing sensor 1301 generates fingerprint image data according to this reflected light, and be transferred to image processor 1302 (information process unit 1203), image processor 1302 receives described fingerprint image data, generates fingerprint recognition information according to described fingerprint image data.
Beneficial effect of the present invention is: the autoluminescence planar transparent light source by using OLED for example is as the light source of irradiation finger print, OLED is arranged on the catoptrical light path of finger print, thereby simplified the optical texture of optical finger print recognition device, reduced the volume of optical finger print recognition device, and made the installation of optical finger print recognition device more convenient.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (17)

1. an optical finger print harvester is characterized in that, described device comprises: transparency carrier and plane transparent luminescent device.
2. device as claimed in claim 1 is characterized in that, the material of described transparency carrier is at least a in glass, plastics or the metal.
3. device as claimed in claim 1 is characterized in that, described planar transparent luminescent device is transparent organic electroluminescence device.
4. device as claimed in claim 3 is characterized in that, described transparent organic electroluminescence device comprises: two transparency electrodes and the transparent organic electroluminescence cell between two transparency electrodes.
5. device as claimed in claim 4 is characterized in that, described transparency electrode comprises: a transparent anode and a transparent cathode.
6. device as claimed in claim 5 is characterized in that, the material selection metal of described transparent cathode.
7. device as claimed in claim 5 is characterized in that, the structural order of described device is: transparency carrier, transparent anode, transparent organic electroluminescence cell, transparent cathode.
8. device as claimed in claim 7 is characterized in that, described device comprises: an optical film between described transparent organic electroluminescence cell and transparent cathode, is used for the light that the reflective transparent organic electroluminescence cell sends and sees through the fingerprint reflected light.
9. device as claimed in claim 7 is characterized in that, described device comprises: an optical film, be positioned at described transparent cathode skin, and be used for the light that the reflective transparent organic electroluminescence cell sends and see through the fingerprint reflected light.
10. device as claimed in claim 5 is characterized in that, the structural order of described device is: transparency carrier, transparent cathode, transparent organic electroluminescence cell, transparent anode.
11. device as claimed in claim 10 is characterized in that, described device comprises: an optical film between described transparent organic electroluminescence cell and transparent anode, is used for the light that the reflective transparent organic electroluminescence cell sends and sees through the fingerprint reflected light.
12. device as claimed in claim 10 is characterized in that, described device comprises: an optical film, be positioned at described transparent anode skin, and be used for the light that the reflective transparent organic electroluminescence cell sends and see through the fingerprint reflected light.
13. device as claimed in claim 1 is characterized in that, comprises that one is positioned at the outer field transparent touch layer of described transparency carrier, is used to start or close the driving power of described transparent organic electroluminescence device.
14. an optical fingerprint identification system comprises:
The optical finger print collecting unit comprises the harvester of optical finger print described in the claim 1, is used to shine finger print, and the finger print reflected light that the irradiation back is obtained sees through described optical finger print harvester;
Light receiving unit is used to receive the reflected light of the above-mentioned finger print that is transferred out by the optical finger print harvester, and generates fingerprint image data according to described finger print reflected light;
Information process unit is used to receive described fingerprint image data, generates fingerprint recognition information according to described fingerprint image data.
15. system as claimed in claim 14 is characterized in that, described light receiving unit also comprises: optical lens, be arranged on the catoptrical light path of described finger print, and be used to make the finger print reflected light to focus on described light receiving unit.
16. an optical finger print recognition methods is applied to the described optical fingerprint identification system of claim 14, this method comprises:
Employing is from the finger print of rayed gland on the optical finger print harvester of the emission of the planar transparent luminescent device in the optical finger print harvester, and make the finger print reflected light of irradiation back acquisition effectively see through this harvester, and with the step of this reflected light transmission to light receiving unit;
Adopt light receiving unit to receive the reflected light of the above-mentioned finger print that transfers out by the optical finger print harvester, and generate fingerprint image data, and be transferred to the step of information process unit according to this reflected light;
Adopt information process unit to receive described fingerprint image data, generate the step of fingerprint recognition information according to described fingerprint image data.
17. method as claimed in claim 16 is characterized in that, the planar transparent luminescent device in the described optical finger print harvester is transparent organic electroluminescence device.
CN2010106100382A 2010-12-06 2010-12-17 Optical fingerprint acquisition device, optical fingerprint identification system and method Pending CN102073860A (en)

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CN110110713A (en) * 2019-06-12 2019-08-09 马远博 It is a kind of using Organic Light Emitting Diode as the optical fingerprint acquisition system of backlight
CN110390270A (en) * 2019-06-27 2019-10-29 北京集创北方科技股份有限公司 Optical finger print recognition methods, device, electronic equipment and storage medium

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Application publication date: 20110525