CN204009943U - Fingerprint Identification sensor, integrated package and terminal device - Google Patents
Fingerprint Identification sensor, integrated package and terminal device Download PDFInfo
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- CN204009943U CN204009943U CN201420364044.8U CN201420364044U CN204009943U CN 204009943 U CN204009943 U CN 204009943U CN 201420364044 U CN201420364044 U CN 201420364044U CN 204009943 U CN204009943 U CN 204009943U
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Abstract
The utility model provides a kind of fingerprint Identification sensor, integrated package and terminal device.This fingerprint Identification sensor comprises: substrate; Embossed layer, it is formed in described substrate, and described embossed layer surface is provided with multiple grooves; And, fingerprint recognition sensing element, it is placed in described multiple groove; Wherein, described fingerprint recognition sensing element comprises: at least one the first induction electrode; Some the first drive electrodes, it is set up in parallel and each interval, and is oppositely arranged with described at least one the first induction electrode compartment of terrain, to define multiple the first detector gap; At least one the second induction electrode, itself and the substantially vertical setting of described at least one the first induction electrode; And, some the second drive electrodes, it is set up in parallel and each interval, and is oppositely arranged with described at least one the second induction electrode compartment of terrain, to define multiple the second detector gap; Described some the second drive electrodes with described some the first drive electrodes along substantially vertical both direction setting each other.
Description
Technical field
The utility model relates to technical field of biometric identification, relates in particular to a kind of fingerprint Identification sensor, integrated package and terminal device.
Background technology
In recent years, along with the development of memory technology, terminal device stores the capsule information such as a large amount of personal information as smart mobile phone, panel computer etc., and its security becomes even more important.At present, realize the cryptoguard to its terminal device by the form such as password, figure.
But for the cipher mode such as password, figure, user need remember password and/or the figure set; In addition, in public, the danger that also exists password to reveal.And in order to improve security, often needing to increase the complexity of password and figure, the difficulty that this has further increased user's memory undoubtedly, causes conflicting between safe and easy-to-use.
Fingerprint is made up of the rough lines of finger surface skin, is the unique feature of human body, and its complexity can be provided for enough features of identification.Fingerprint recognition is to utilize the feature of fingerprint uniqueness and stability to realize identification, and remembers without user.
Capacitance type fingerprint identification sensor forms conducting channel on base material substrate, and in the time that finger contacts with sensor, fingerprint pattern is surveyed and formed to the different capacitances that produce by the projection of fingerprint ridge and the depression of fingerprint paddy.
In the time carrying out fingerprint recognition by fingerprint Identification sensor, the distance between people's finger print face and fingerprint Identification sensor can not be excessively far away, if hypertelorism is difficult to form fingerprint pattern accurately.
Utility model content
The utility model provides a kind of scratching formula fingerprint Identification sensor that can twocouese carries out fingerprint recognition, for user's use has increased facility; A kind of fingerprint recognition detection components of can twocouese carrying out fingerprint recognition is provided in addition, on terminal device, has been particularly useful for transparent cover plate and designs the terminal device without embedded entity button for integral type.
Additional aspect of the present utility model and advantage will partly be set forth in the following description, and partly will from describe, become obviously, or can the acquistion by practice of the present utility model.
The utility model provides a kind of fingerprint Identification sensor on the one hand, comprising: substrate; Embossed layer, it is formed in described substrate, and described embossed layer surface is provided with multiple grooves; And, fingerprint recognition sensing element, it is placed in described multiple groove; Wherein, described fingerprint recognition sensing element comprises: at least one the first induction electrode; Some the first drive electrodes, it is set up in parallel and each interval, and is oppositely arranged with described at least one the first induction electrode compartment of terrain, to define multiple the first detector gap; At least one the second induction electrode, itself and the substantially vertical setting of described at least one the first induction electrode; And, some the second drive electrodes, it is set up in parallel and each interval, and is oppositely arranged with described at least one the second induction electrode compartment of terrain, to define multiple the second detector gap; Described some the second drive electrodes with described some the first drive electrodes along substantially vertical both direction setting each other.
In an embodiment, described at least one the first induction electrode and the crossing electrical connection between two of described at least one the second induction electrode; And/or, described some the first drive electrodes and the crossing electrical connection between two of described some the second drive electrodes.
In another embodiment, described some the first drive electrodes and the equal spaced set of described some the second drive electrodes, and its spacing scope is within the scope of 40 μ m-60 μ m; The width of the width of described some the first drive electrodes and described some the second drive electrodes is equal to each other, and its width range is in 20 μ m-45 μ m; The size of described multiple the first detector gap and the size in described multiple the second gaps are equal to each other, and its interstice coverage is in 20 μ m-40 μ m; The width of the width of described at least one the first induction electrode and described at least one the second induction electrode equates, and its width range is in 20 μ m-45 μ m.
In another embodiment, described fingerprint recognition sensing element also comprises: at least one the 3rd induction electrode, it is parallel with described at least one the first induction electrode and be set up in parallel, and is positioned at a side described at least one the first induction electrode, contrary with described some the first drive electrodes; Some the 3rd drive electrodes, it is set up in parallel and each interval, and is oppositely arranged with described at least one the 3rd induction electrode compartment of terrain, to define multiple the 3rd detector gap; Described some the 3rd drive electrodes are positioned at a side described at least one the 3rd induction electrode, contrary with described at least one the first induction electrode; At least one the 4th induction electrode, it is parallel with described at least one the second induction electrode and be set up in parallel, be positioned at a side described at least one the second induction electrode, contrary with described some the second drive electrodes, and with the substantially vertical setting of described at least one the 3rd induction electrode; And, some 4 wheel driven moving electrodes, it is set up in parallel and each interval, and is oppositely arranged with described at least one the 4th induction electrode compartment of terrain, to define multiple the 4th detector gap; Described some 4 wheel driven moving electrodes are positioned at a side described at least one the 4th induction electrode, contrary with described at least one the second induction electrode.
In another embodiment, described at least one the first induction electrode and the crossing electrical connection between two of described at least one the second induction electrode; And/or, described some the first drive electrodes and the crossing electrical connection between two of described some the second drive electrodes; And/or, described at least one the 3rd induction electrode and the crossing electrical connection of described at least one the 4th induction electrode.
In another embodiment, described some the first drive electrodes and described some the 3rd drive electrode spaced sets, and its spacing scope is in 40 μ m-60 μ m; The width of the width of described some the first drive electrodes and described some the 3rd drive electrodes is equal to each other, and its width range is in 20 μ m-45 μ m; The size of described multiple the first detector gap and the size of described multiple the 3rd detector gap are equal to each other, and its spacing scope is within the scope of 20 μ m-40 μ m; The width of the width of described at least one the first induction electrode and described at least one the 3rd induction electrode equates, and its width range is within the scope of 20 μ m-45 μ m.
In another embodiment, described some the second drive electrodes and described some 4 wheel driven moving electrode spaced sets, and its spacing scope is in 40 μ m-60 μ m; The width of described some the second drive electrodes and the width of described some 4 wheel driven moving electrodes are equal to each other, and its width range is in 20 μ m-45 μ m; The size of described multiple the second detector gap and the size of described multiple the 4th detector gap are equal to each other, and its interstice coverage is in 20 μ m-40 μ m; The width of the width of described at least one the second induction electrode and described at least one the 4th induction electrode equates, and its width range is in 20 μ m-45 μ m.
In another embodiment, the material of described fingerprint recognition sensing element comprises metallic particles, Graphene, carbon nano-tube or conducting polymer composite.
In another embodiment, described fingerprint recognition sensing element adopts conductive grid structure.
The utility model provides a kind of terminal device on the other hand, comprises above-mentioned any fingerprint Identification sensor.
The utility model provides the integrated package of a kind of touch sensor and fingerprint Identification sensor more on the one hand, comprising: the first flexible and transparent substrate; The first embossed layer, it is formed in described the first flexible and transparent substrate, and described the first embossed layer surface is provided with multiple the first grooves and multiple the second groove; The first touch electrode layer, it is arranged in described multiple the first groove; Fingerprint recognition sensing element and a plurality of leads being connected with described fingerprint recognition sensing element, it is arranged in described multiple the first groove; The second flexible and transparent substrate, it is arranged in the part of described the first embossed layer; The second embossed layer, it is formed in described the second flexible and transparent substrate, and described the second embossed layer surface is provided with multiple the 3rd grooves; And, the second touch electrode layer, it is arranged in described multiple the 3rd groove, and described the first touch electrode layer and described the second touch electrode layer are used for forming touch sensor; Wherein, described fingerprint recognition sensing element comprises: at least one the first induction electrode; Some the first drive electrodes, it is set up in parallel and each interval, and is oppositely arranged with described at least one the first induction electrode compartment of terrain, to define multiple the first detector gap; At least one the second induction electrode, itself and the substantially vertical setting of described at least one the first induction electrode; And, some the second drive electrodes, it is set up in parallel and each interval, and is oppositely arranged with described at least one the second induction electrode compartment of terrain, to define multiple the second detector gap; Described some the second drive electrodes with described some the first drive electrodes along substantially vertical both direction setting each other.
In an embodiment, described fingerprint recognition sensing element also comprises: at least one the 3rd induction electrode, it is parallel with described at least one the first induction electrode and be set up in parallel, and is positioned at a side described at least one the first induction electrode, contrary with described some the first drive electrodes; Some the 3rd drive electrodes, it is set up in parallel and each interval, and is oppositely arranged with described at least one the 3rd induction electrode compartment of terrain, to define multiple the 3rd detector gap; Described some the 3rd drive electrodes are positioned at a side described at least one the 3rd induction electrode, contrary with described at least one the first induction electrode; At least one the 4th induction electrode, it is parallel with described at least one the second induction electrode and be set up in parallel, be positioned at a side described at least one the second induction electrode, contrary with described some the second drive electrodes, and with the substantially vertical setting of described at least one the 3rd induction electrode; And, some 4 wheel driven moving electrodes, it is set up in parallel and each interval, and is oppositely arranged with described at least one the 4th induction electrode compartment of terrain, to define multiple the 4th detector gap; Described some 4 wheel driven moving electrodes are positioned at a side described at least one the 4th induction electrode, contrary with described at least one the second induction electrode.
In another embodiment, described the first flexible and transparent substrate and described the second flexible and transparent substrate are PET film.
In another embodiment, described the first embossed layer and described the second embossed layer are ultraviolet-curing resin, hot-setting adhesive, light binding or certainly dry glue.
In another embodiment, described fingerprint recognition sensing element adopts conductive grid structure.
The utility model provides a kind of terminal device more on the one hand, comprises above-mentioned any integrated package.
In an embodiment, described terminal device also comprises: transparent cover plate; Described transparent cover plate has end face, the bottom surface relative with end face and connects the side of end face and bottom surface; Described transparent cover plate comprises He Fei visible area, visible area; Described integrated package fits in described bottom surface by OCA, and bending and fit in the described non-visible area of described side and described end face by OCA, and the fingerprint recognition sensing element in wherein said integrated package is positioned on described end face.A plurality of leads in described integrated package extends to described bottom surface from described end face.
In another embodiment, the first flexible and transparent substrate in described integrated package is more close or further from described transparent cover plate than the second flexible substrates in described integrated package.
In another embodiment, described terminal device also comprises the protective seam that covers the fingerprint recognition sensing element in described integrated package.
A kind of touch sensor providing according to the utility model and the integrated package of fingerprint sensor, because touch sensor and fingerprint Identification sensor can utilize identical technique to be fabricated to integrated package simultaneously, therefore can reduce costs.In addition, the component wear causing can avoid forming time, improves yield rate.
Brief description of the drawings
By describe its example embodiment in detail with reference to accompanying drawing, above-mentioned and further feature of the present utility model and advantage will become more obvious.
Fig. 1 is the structural representation of the fingerprint sensor of the utility model embodiment.
Fig. 2 is the cut-open view obtaining along the AA ' line in Fig. 1.
Fig. 3 is the cut-open view obtaining along the BB ' line in Fig. 1.
Fig. 4 is the conductive grid that can be used for fingerprint recognition sensing element.
Fig. 5 is the structural representation of the fingerprint recognition sensing element of another embodiment of the utility model.
Fig. 6 is the terminal device schematic diagram of the fingerprint Identification sensor that comprises the utility model embodiment.
Fig. 7 is the structural representation of the touch sensor of the utility model embodiment and the integrated package of fingerprint Identification sensor.
Fig. 8 is the structural representation of the terminal device of the integrated package that comprises the utility model embodiment.
Embodiment
Referring now to accompanying drawing, example embodiment is more fully described.But example embodiment can be implemented in a variety of forms, and should not be understood to be limited to embodiment set forth herein; On the contrary, provide these embodiments to make the utility model by comprehensive and complete, and the design of example embodiment is conveyed to those skilled in the art all sidedly.Identical in the drawings Reference numeral represents same or similar structure.
Described feature or structure can be combined in one or more embodiments in any suitable manner.In the following description, thus provide many details to provide fully understanding embodiment of the present utility model.But, one of ordinary skill in the art would recognize that there is no one or more in described specific detail, or adopt other method, constituent element etc., also can put into practice the technical solution of the utility model.In other cases, be not shown specifically or describe known features or operation to avoid fuzzy the utility model.
Fig. 1 is the structural representation of the fingerprint sensor of the utility model embodiment.Fig. 2 is the cut-open view obtaining along the AA ' line in Fig. 1.Fig. 3 is the cut-open view obtaining along the BB ' line in Fig. 1.
As Figure 1-3, fingerprint Identification sensor 1 comprises: substrate 11, is formed on the embossed layer 13 in substrate 11, and is formed on the fingerprint recognition sensing element 12 in embossed layer 13.
Embossed layer 13 surfaces are provided with multiple grooves 131, and fingerprint recognition sensing element 12 is placed in groove 131.
In certain embodiments, fingerprint recognition sensing element 12 can be filled in groove 131 completely, and the upper surface of fingerprint recognition sensing element 12 is concordant with the upper surface of embossed layer 13, but the utility model is not limited to this.
Fingerprint recognition sensing element 12 comprises at least one the first induction electrodes 121, many first drive electrode 122, at least one the second induction electrode 123 and many second drive electrodes 124.
As shown in Figure 2, many first drive electrodes 122 and many second drive electrodes 124 are all set up in parallel and each interval.
In certain embodiments, the spacing d between the spacing d between the first adjacent drive electrode 122 and the second adjacent drive electrode 124 is equal to each other, and the scope of d is at 40 μ m-60 μ m; The width w1 of the width w1 of the first drive electrode 122 and the second drive electrode 124 is equal to each other, and the scope of w1 is at 20 μ m-45 μ m.
Many the second drive electrodes 124 are along the direction setting that is approximately perpendicular to many first drive electrodes 122.Many the first drive electrodes 122 and many second drive electrodes 124 can intersect each other between two with electrical connection, also can be non-intersect, and the utility model is not as limit.
When many first drive electrodes 122 and many second drive electrodes 124 are between two when crossing setting, in certain embodiments, can be in being electrically connected a lead-in wire respectively at joining 129 between two, so that the first drive electrode 122 intersecting between two and the second drive electrode 124 share a lead-in wire, thereby reduce number of leads, simplified structure.
The first induction electrode 121 is oppositely arranged with many first drive electrode 122 compartment of terrains, and to define multiple the first detector gap g1, the scope of g1 is for example at 20 μ m-40 μ m.
The second induction electrode 123 is along the direction setting that is approximately perpendicular to the first induction electrode 121.Can be crossing to be electrically connected between the first induction electrode 121 and the second induction electrode 123, also can be non-intersect, the utility model is not as limit.
In Fig. 2 taking first induction electrode 121 and second induction electrode 123 as example, in the time that the first induction electrode 121 intersects at the second induction electrode 123, in certain embodiments, can be in a lead-in wire of both joinings 1210 place's electrical connections, so that both share a lead-in wire, thereby reduce number of leads, simplified structure.
And while comprising many first induction electrodes 121 and/or many second induction electrodes 123, in certain embodiments, parallel to each other and the interval of many first induction electrodes 121 arranges, parallel to each other and the interval of many second induction electrodes 123 arranges, the first induction electrode 121 and the second induction electrode 123 intersect respectively electrical connection between two, to share a lead-in wire.
In certain embodiments, the width w2 of the first induction electrode 121 equates with the width w2 of the second induction electrode 123, and the scope of w2 is at 20 μ m-45 μ m.
The second induction electrode 123 is oppositely arranged with many second drive electrode 124 compartment of terrains, and to define multiple the second detector gap g2, the scope of g2 is for example at 20 μ m-40 μ m.
The coupling capacitance forming between the first induction electrode 121 and many first drive electrodes 122 can be positioned at detector gap g1 top according to fingerprint ridge or fingerprint paddy the different changes of capacitance.This is because normally 10 to 20 times of air (fingerprint paddy) of the specific inductive capacity of fingerprint ridge.Therefore, this coupling capacitance under fingerprint ridge than there is larger equivalent capacitance value under fingerprint paddy.Be fingerprint ridge or fingerprint paddy by detecting the capacitance variation (or change in voltage) on it of this coupling capacitance, can judge what be positioned at this detector gap g1 top, thereby obtain fingerprint image.
Principle of work between principle of work between the second induction electrode 123 and many second drive electrodes 124 and the first induction electrode 121 and many first drive electrodes 122 is identical, does not repeat them here.
By by the first induction electrode 121 and many first testing agencies that the first drive electrode 122 forms, and the second testing agency of second induction electrode 123 and many second drive electrodes 124, along the vertical both direction setting of cardinal principle each other, make user carry out fingerprint recognition along both direction (as the H direction in Fig. 1 and V direction), convenient for users to use.
Substrate 11 can be for example glass substrate, sapphire, or PET, PMMA, PC etc.Substrate 111 can be also flexible printed circuit board (FPC) substrate, as BT, FR4, FR5 etc.
Embossed layer 13 can be for example ultraviolet-curing resin, hot-setting adhesive, light binding or dry glue etc. certainly.
The material of induction electrode 121,123 and drive electrode 122,124 can be identical, also can be different.The material that forms induction electrode 121,123 and drive electrode 124 can be selected from ITO (tin indium oxide) or metal simple-substance particle as gold, silver, copper, zinc, aluminium one or more, metal alloy conductive material, Graphene, carbon nano-tube material, nanometer conductive material be as Nano Silver etc., but the utility model is not limited to this.
In certain embodiments, induction electrode 121,123 and drive electrode 122,124 can adopt conductive grid 1212 structures, as shown in Figure 4.Now, groove 131 has and the corresponding structure of conductive grid 1212.Adopt conductive grid structure, can reduce costs, and still can reach identical fingerprint recognition effect.
Fingerprint Identification sensor 1 also can comprise lead-in wire (not shown), is electrically connected with fingerprint recognition sensing element 12, and for fingerprint recognition sensing element 12 is electrically connected to external circuit, for example fingerprint recognition chip (not shown).
Lead-in wire also can be placed in groove, and can have the material identical with induction electrode and drive electrode.Lead-in wire also can comprise conductive grid.
Fingerprint recognition chip can provide driving signal to drive electrode 122,124 orders, and can detect induced signal by induction electrode 121,123, thus identification fingerprint.But the utility model is not limited to this.
According to the fingerprint Identification sensor of the utility model embodiment, by utilizing embossed layer to form electrode and lead-in wire in non-silicon base, can provide the reliability of sensor, and can in limited area, form at lower cost the fingerprint Identification sensor of high-resolution.
The following describes according to the manufacture method of the fingerprint Identification sensor of the utility model embodiment.
First, prepare substrate 11, for example PET substrate.Then, can in substrate 11, form embossed layer 13.Embossed layer 13 can be ultraviolet-curing resin, hot-setting adhesive, light binding or dry glue etc. certainly.Then, form groove 131 by imprint process at embossed layer 13 on away from the surface of substrate 11.Groove 131 according to actual needs can be for for example latticed.
Then, can use blade coating technology in groove 131, to fill for example Nano Silver ink, and toast sintering under about 150 DEG C of conditions, make the silver-colored simple substance in Nano Silver ink sinter conductive electrode pattern into, thereby form induction electrode and drive electrode, and form lead-in wire as required.According to an embodiment, silver-colored ink solids is about 35%, and solvent volatilizees in sintering.
Fig. 5 is the structural representation of the fingerprint recognition sensing element of another embodiment of the utility model.As shown in Figure 5, for fingerprint Identification sensor 1 is produced more accurately without distortion fingermark image, respectively at above-mentioned the first induction electrode 121 and many first surveyed areas that the first drive electrode 122 forms, and build a pair of line imaging device in the second surveyed area of the second induction electrode 123 and many second drive electrodes 124.
The first surveyed area also comprises: at least one 3rd induction electrodes 125 and many articles of the 3rd drive electrodes 126.
The 3rd induction electrode 125 is with first induction electrode 121 is parallel is set up in parallel, and be positioned at the first induction electrode 121, with many sides that the first drive electrode 122 is contrary.
In certain embodiments, the width w2 of the 3rd induction electrode 125 also equates with the width w2 of the first induction electrode 121, and the scope of w2 is at 20 μ m-45 μ m.
The 3rd induction electrode 125 is oppositely arranged with many articles of the 3rd drive electrode 126 compartment of terrains, and to define multiple the 3rd detector gap g3, the scope of g3 is for example at 20 μ m-40 μ m.
Many articles the 3rd drive electrode 126 is positioned at a side the 3rd induction electrode 125, contrary with the first induction electrode 121.
Many articles the 3rd drive electrode 126 is set up in parallel and each interval.In certain embodiments, the spacing d between the 3rd adjacent drive electrode also equals the spacing d between adjacent the first drive electrode 122, and the scope of d is at 40 μ m-60 μ m; The width w1 of the 3rd drive electrode 126 also equals the width w1 of the first drive electrode 122, and the scope of w1 is at 20-45 μ m.
The second surveyed area also comprises: at least one 4th induction electrodes 127 and many articles of 4 wheel driven moving electrodes 128.
The 4th induction electrode 127 is with second induction electrode 123 is parallel is set up in parallel, and be positioned at the second induction electrode 123, with many sides that the second drive electrode 124 is contrary.
In certain embodiments, the width w2 of the 4th induction electrode 127 also equates with the width w2 of the second induction electrode 123, and the scope of w2 is at 20 μ m-45 μ m.
The 4th induction electrode 127 is oppositely arranged with many articles of 4 wheel driven moving electrode 128 compartment of terrains, and to define multiple the 4th detector gap g4, the scope of g4 is for example at 20 μ m-40 μ m.
Many articles 4 wheel driven moving electrode 128 is positioned at a side the 4th induction electrode 127, contrary with the second induction electrode 123.
Many articles 4 wheel driven moving electrode 128 is set up in parallel and each interval.In certain embodiments, the spacing d between adjacent 4 wheel driven moving electrode also equals the spacing d between adjacent the second drive electrode 124, and the scope of d is at 40 μ m-60 μ m; The width w1 of 4 wheel driven moving electrode 128 also equals the width w1 of the second drive electrode 124, and the scope of w1 is at 20 μ m-45 μ m.
Between the first induction electrode 121 and the 3rd induction electrode 125, can be electrically connected, for example, by lead-in wire, but the utility model is not as limit.
The 3rd induction electrode 125 is along the direction setting that is approximately perpendicular to the 4th induction electrode 127.Can be crossing to be electrically connected between the 3rd induction electrode 125 and the 4th induction electrode 127, also can be non-intersect, the utility model is not as limit.
In the time that the 3rd induction electrode 125 intersects at the 4th induction electrode 127, in certain embodiments, can, in a lead-in wire of both joinings 1211 place's electrical connections, so that both share a lead-in wire, thereby reduce number of leads, simplified structure.
In certain embodiments, the 3rd induction electrode 125, the 3rd drive electrode 126, the 4th induction electrode 127 and 4 wheel driven moving electrode 128 also can adopt conductive grid structure.
It should be noted that, in Fig. 2, be to describe as an example of one article of the 3rd induction electrode 125 and one article of the 4th induction electrode 127 example, in the time comprising many articles of the 3rd induction electrodes 125 and/or many articles of the 4th induction electrodes 127, in certain embodiments, parallel to each other and the interval of many articles of the 3rd induction electrodes 125 arranges, parallel to each other and the interval of many articles of the 4th induction electrodes 127 arranges, and many articles of the 3rd induction electrodes 125 and many articles of the 4th induction electrodes 127 intersect respectively electrical connection between two, to share a lead-in wire.
Taking the first induction electrode 121 in the first surveyed area and the 3rd induction electrode 125 as example, the principle of work of two-wire imager is described.Direction when finger is first determined inswept fingerprint the first surveyed area of finger by the first induction electrode 121 or the 3rd induction electrode 125, determine again the speed of inswept the first surveyed area of finger by comparing the signal intensity of the first induction electrode 121 and the 3rd induction electrode 125, the speed that for example obtains finger by calculating identical fingerprint detection region by the mistiming of the first induction electrode 121 and the 3rd induction electrode 125, obtains fingermark image more accurately with this.
The fingerprint Identification sensor of the utility model embodiment is applicable on any terminal device with fingerprint identification function, such as smart mobile phone, panel computer etc.
Taking smart mobile phone as example, Fig. 6 is the terminal device schematic diagram of the fingerprint Identification sensor that comprises the utility model embodiment.This terminal device comprises transparent cover plate 100, and transparent cover plate 100 comprises 101He Fei visible area, visible area 102.Fingerprint Identification sensor can be arranged in Huo Fei visible area, visible area.
By fingerprint recognition sensing element is formed on the transparent cover plate of terminal device, dwindle the distance of fingerprint recognition sensing element and finger print face, fingerprint recognition result more accurately can be provided.
Fig. 7 is the structural representation of the touch sensor of the utility model embodiment and the integrated package of fingerprint Identification sensor.
As shown in Figure 7, the integrated package 2 of touch sensor and fingerprint Identification sensor comprises: the first flexible and transparent substrate 21 and the first embossed layer 23.The first embossed layer 23 is formed in the first flexible and transparent substrate 21, and the first embossed layer 23 surfaces are provided with multiple the first grooves 231 and multiple the second groove 232.
Integrated package 2 also comprises: the first touch electrode layer 241, is arranged in multiple the first grooves 231; And a plurality of leads 25 that fingerprint recognition sensing element 22 is connected with fingerprint recognition sensing element 22, is arranged in multiple the second grooves 232.
Integrated package 2 also comprises: the second flexible and transparent substrate 26, is arranged in the part of the first embossed layer 23; And second embossed layer 27, be formed in the second flexible and transparent substrate 26.The second embossed layer 27 surfaces are provided with multiple the 3rd grooves 271.
Integrated package 2 also comprises: the second touch electrode layer 242, is arranged in multiple the 3rd grooves 271.
The first touch electrode layer 241 and the second touch electrode layer 242, for forming touch sensor, for fear of fuzzy the utility model, do not repeat them here.
Manufacture the technique of described integrated package and the technique of above-mentioned manufacture fingerprint Identification sensor is similar, do not repeat them here.
Above-mentioned fingerprint Identification sensor can be applied in integrated package 2, therefore repeats no more.
In certain embodiments, the first flexible and transparent substrate 21 and the second transparent flexible substrate 26 are PET film.
A kind of touch sensor providing according to the utility model and the integrated package of fingerprint sensor, because touch sensor and fingerprint Identification sensor can utilize identical technique to be fabricated to integrated package simultaneously, therefore can reduce costs.In addition, the component wear causing can avoid forming time, improves yield rate.
Fig. 8 is the structural representation of the terminal device of the integrated package that comprises the utility model embodiment.Terminal device is for example smart mobile phone, panel computer etc., and the utility model is not as limit.
As shown in Figure 8, terminal device 200 comprises: transparent cover plate 210.Transparent cover plate 210 has end face 211, the bottom surface 212 relative with end face 211 and connects the side 213 of end face 211 and bottom surface 212.Transparent cover plate 210 comprises 214He Fei visible area, visible area 215.
Integrated package can fit in bottom surface 212 by OCA (optical lens gelatin) layer 220, and bending and fit in the non-display area 215 of side 213 and end face 211 by OCA layer 220.Fingerprint recognition sensing element 230 is positioned on end face 211.A plurality of leads 240 extends to bottom surface 212 from end face 211.
The set-up mode of integrated package 2 on transparent cover plate 210 is not limited to shown in Fig. 1-3.For example, also can make the first flexible and transparent substrate 21 adjacent with transparent cover plate 210, fit in bottom surface 212 by OCA layer 220.
According to some embodiments, electronic installation 200 also can comprise the protective seam 250 that covers fingerprint recognition sensing element 230.
The first touch electrode layer 241 and the second touch electrode layer 242 and lead-in wire 25 can be electrically connected to external circuit by different side's conducting resinl 260, for example flexible printed circuit board 270, but the disclosure is not as limit.
Below illustrate particularly and described illustrative embodiments of the present utility model.Should be appreciated that, the utility model is not limited to disclosed embodiment, and on the contrary, the utility model intention contains the various amendments and the equivalent replacement that comprise within the scope of the appended claims.
Claims (19)
1. a fingerprint Identification sensor, is characterized in that, comprising:
Substrate;
Embossed layer, it is formed in described substrate, and described embossed layer surface is provided with multiple grooves; And,
Fingerprint recognition sensing element, it is placed in described multiple groove;
Wherein, described fingerprint recognition sensing element comprises:
At least one the first induction electrode;
Some the first drive electrodes, it is set up in parallel and each interval, and is oppositely arranged with described at least one the first induction electrode compartment of terrain, to define multiple the first detector gap;
At least one the second induction electrode, itself and the substantially vertical setting of described at least one the first induction electrode; And,
Some the second drive electrodes, it is set up in parallel and each interval, and is oppositely arranged with described at least one the second induction electrode compartment of terrain, to define multiple the second detector gap; Described some the second drive electrodes with described some the first drive electrodes along substantially vertical both direction setting each other.
2. fingerprint Identification sensor according to claim 1, is characterized in that, described at least one the first induction electrode and the crossing electrical connection between two of described at least one the second induction electrode; And/or, described some the first drive electrodes and the crossing electrical connection between two of described some the second drive electrodes.
3. fingerprint Identification sensor according to claim 1, is characterized in that, described some the first drive electrodes and the equal spaced set of described some the second drive electrodes, and its spacing scope is within the scope of 40 μ m-60 μ m; The width of the width of described some the first drive electrodes and described some the second drive electrodes is equal to each other, and its width range is in 20 μ m-45 μ m; The size of described multiple the first detector gap and the size in described multiple the second gaps are equal to each other, and its interstice coverage is in 20 μ m-40 μ m; The width of the width of described at least one the first induction electrode and described at least one the second induction electrode equates, and its width range is in 20 μ m-45 μ m.
4. fingerprint Identification sensor according to claim 1, is characterized in that, described fingerprint recognition sensing element also comprises:
At least one the 3rd induction electrode, it is parallel with described at least one the first induction electrode and be set up in parallel, and is positioned at a side described at least one the first induction electrode, contrary with described some the first drive electrodes;
Some the 3rd drive electrodes, it is set up in parallel and each interval, and is oppositely arranged with described at least one the 3rd induction electrode compartment of terrain, to define multiple the 3rd detector gap; Described some the 3rd drive electrodes are positioned at a side described at least one the 3rd induction electrode, contrary with described at least one the first induction electrode;
At least one the 4th induction electrode, it is parallel with described at least one the second induction electrode and be set up in parallel, be positioned at a side described at least one the second induction electrode, contrary with described some the second drive electrodes, and with the substantially vertical setting of described at least one the 3rd induction electrode; And,
Some 4 wheel driven moving electrodes, it is set up in parallel and each interval, and is oppositely arranged with described at least one the 4th induction electrode compartment of terrain, to define multiple the 4th detector gap; Described some 4 wheel driven moving electrodes are positioned at a side described at least one the 4th induction electrode, contrary with described at least one the second induction electrode.
5. fingerprint Identification sensor according to claim 4, is characterized in that, described at least one the first induction electrode and the crossing electrical connection between two of described at least one the second induction electrode; And/or, described some the first drive electrodes and the crossing electrical connection between two of described some the second drive electrodes; And/or, described at least one the 3rd induction electrode and the crossing electrical connection of described at least one the 4th induction electrode.
6. fingerprint Identification sensor according to claim 4, is characterized in that, described some the first drive electrodes and described some the 3rd drive electrode spaced sets, and its spacing scope is in 40 μ m-60 μ m; The width of the width of described some the first drive electrodes and described some the 3rd drive electrodes is equal to each other, and its width range is in 20 μ m-45 μ m; The size of described multiple the first detector gap and the size of described multiple the 3rd detector gap are equal to each other, and its spacing scope is within the scope of 20 μ m-40 μ m; The width of the width of described at least one the first induction electrode and described at least one the 3rd induction electrode equates, and its width range is within the scope of 20 μ m-45 μ m.
7. fingerprint Identification sensor according to claim 4, is characterized in that, described some the second drive electrodes and described some 4 wheel driven moving electrode spaced sets, and its spacing scope is in 40 μ m-60 μ m; The width of described some the second drive electrodes and the width of described some 4 wheel driven moving electrodes are equal to each other, and its width range is in 20 μ m-45 μ m; The size of described multiple the second detector gap and the size of described multiple the 4th detector gap are equal to each other, and its interstice coverage is in 20 μ m-40 μ m; The width of the width of described at least one the second induction electrode and described at least one the 4th induction electrode equates, and its width range is in 20 μ m-45 μ m.
8. according to the fingerprint Identification sensor described in claim 1 or 4, it is characterized in that, the material of described fingerprint recognition sensing element comprises metallic particles, Graphene, carbon nano-tube or conducting polymer composite.
9. according to the fingerprint Identification sensor described in claim 1 or 4, it is characterized in that, described fingerprint recognition sensing element adopts conductive grid structure.
10. a terminal device, is characterized in that, comprises according to the fingerprint Identification sensor described in claim 1-9 any one.
The integrated package of 11. 1 kinds of touch sensors and fingerprint Identification sensor, is characterized in that, comprising:
The first flexible and transparent substrate;
The first embossed layer, it is formed in described the first flexible and transparent substrate, and described the first embossed layer surface is provided with multiple the first grooves and multiple the second groove;
The first touch electrode layer, it is arranged in described multiple the first groove;
Fingerprint recognition sensing element and a plurality of leads being connected with described fingerprint recognition sensing element, it is arranged in described multiple the first groove;
The second flexible and transparent substrate, it is arranged in the part of described the first embossed layer;
The second embossed layer, it is formed in described the second flexible and transparent substrate, and described the second embossed layer surface is provided with multiple the 3rd grooves; And,
The second touch electrode layer, it is arranged in described multiple the 3rd groove, and described the first touch electrode layer and described the second touch electrode layer are used for forming touch sensor;
Wherein, described fingerprint recognition sensing element comprises:
At least one the first induction electrode;
Some the first drive electrodes, it is set up in parallel and each interval, and is oppositely arranged with described at least one the first induction electrode compartment of terrain, to define multiple the first detector gap;
At least one the second induction electrode, itself and the substantially vertical setting of described at least one the first induction electrode; And,
Some the second drive electrodes, it is set up in parallel and each interval, and is oppositely arranged with described at least one the second induction electrode compartment of terrain, to define multiple the second detector gap; Described some the second drive electrodes with described some the first drive electrodes along substantially vertical both direction setting each other.
12. integrated packages according to claim 11, is characterized in that, described fingerprint recognition sensing element also comprises:
At least one the 3rd induction electrode, it is parallel with described at least one the first induction electrode and be set up in parallel, and is positioned at a side described at least one the first induction electrode, contrary with described some the first drive electrodes;
Some the 3rd drive electrodes, it is set up in parallel and each interval, and is oppositely arranged with described at least one the 3rd induction electrode compartment of terrain, to define multiple the 3rd detector gap; Described some the 3rd drive electrodes are positioned at a side described at least one the 3rd induction electrode, contrary with described at least one the first induction electrode;
At least one the 4th induction electrode, it is parallel with described at least one the second induction electrode and be set up in parallel, be positioned at a side described at least one the second induction electrode, contrary with described some the second drive electrodes, and with the substantially vertical setting of described at least one the 3rd induction electrode; And,
Some 4 wheel driven moving electrodes, it is set up in parallel and each interval, and is oppositely arranged with described at least one the 4th induction electrode compartment of terrain, to define multiple the 4th detector gap; Described some 4 wheel driven moving electrodes are positioned at a side described at least one the 4th induction electrode, contrary with described at least one the second induction electrode.
13. according to the integrated package described in claim 11 or 12, it is characterized in that, described the first flexible and transparent substrate and described the second flexible and transparent substrate are PET film.
14. according to the integrated package described in claim 11 or 12, it is characterized in that, described the first embossed layer and described the second embossed layer are ultraviolet-curing resin, hot-setting adhesive, light binding or certainly dry glue.
15. according to the integrated package described in claim 11 or 12, it is characterized in that, described fingerprint recognition sensing element adopts conductive grid structure.
16. 1 kinds of terminal devices, is characterized in that, comprise according to the integrated package described in claim 11-15 any one.
17. terminal devices according to claim 16, is characterized in that, also comprise: transparent cover plate; Described transparent cover plate has end face, the bottom surface relative with end face and connects the side of end face and bottom surface; Described transparent cover plate comprises He Fei visible area, visible area; Described integrated package fits in described bottom surface by OCA, and bending and fit in the described non-visible area of described side and described end face by OCA, and the fingerprint recognition sensing element in wherein said integrated package is positioned on described end face.A plurality of leads in described integrated package extends to described bottom surface from described end face.
18. terminal devices according to claim 17, is characterized in that, the first flexible and transparent substrate in described integrated package is more close or further from described transparent cover plate than the second flexible substrates in described integrated package.
19. terminal devices according to claim 17, is characterized in that, also comprise the protective seam that covers the fingerprint recognition sensing element in described integrated package.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201420364044.8U CN204009943U (en) | 2014-07-02 | 2014-07-02 | Fingerprint Identification sensor, integrated package and terminal device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420364044.8U CN204009943U (en) | 2014-07-02 | 2014-07-02 | Fingerprint Identification sensor, integrated package and terminal device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104091154A (en) * | 2014-07-02 | 2014-10-08 | 南昌欧菲生物识别技术有限公司 | Fingerprint recognition sensor, integrated component and terminal device |
| CN105152124A (en) * | 2015-08-04 | 2015-12-16 | 上海交通大学 | Method for storing CNTs (Carbon Nanotubes) by using deep silicon etching technology |
| CN109239815A (en) * | 2017-07-10 | 2019-01-18 | 上海箩箕技术有限公司 | Cover board and forming method thereof, cover board motherboard, electronic equipment |
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2014
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104091154A (en) * | 2014-07-02 | 2014-10-08 | 南昌欧菲生物识别技术有限公司 | Fingerprint recognition sensor, integrated component and terminal device |
| CN104091154B (en) * | 2014-07-02 | 2018-10-02 | 南昌欧菲生物识别技术有限公司 | Fingerprint Identification sensor, integrated package and terminal device |
| CN105152124A (en) * | 2015-08-04 | 2015-12-16 | 上海交通大学 | Method for storing CNTs (Carbon Nanotubes) by using deep silicon etching technology |
| CN109239815A (en) * | 2017-07-10 | 2019-01-18 | 上海箩箕技术有限公司 | Cover board and forming method thereof, cover board motherboard, electronic equipment |
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