CN109948512A - Fingerprint identification device and display device - Google Patents
Fingerprint identification device and display device Download PDFInfo
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- CN109948512A CN109948512A CN201910196198.8A CN201910196198A CN109948512A CN 109948512 A CN109948512 A CN 109948512A CN 201910196198 A CN201910196198 A CN 201910196198A CN 109948512 A CN109948512 A CN 109948512A
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Abstract
The present invention provides a kind of fingerprint identification device and display device.Fingerprint identification device includes substrate and fingerprint mould group, the fingerprint mould group is fitted in the lower section of the substrate, the substrate is equipped with light shield layer, the position of fingerprint mould group described in the light shield layer face is equipped with multiple through-holes, the substrate position opposite with the through-hole is equipped with area of leaving a blank, and is filled with translucent material in the area of leaving a blank.The present invention can effectively improve the transmitance of light, enhance the clarity of fingerprint mould group acquisition image, improve the rate and precision of fingerprint recognition.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of fingerprint identification device and display devices.
Background technique
Fingerprint is that human body is inherent and can be with other people phase region another characteristics, it is by a series of on finger tip skin surface
The composition details of ridge and Gu Zucheng, these ridges and paddy determine the uniqueness of fingerprint pattern.Fingerprint is had by what it grew up
The display panel of identification function has been widely used in various display devices, to carry out the verifying of personal identification, thus
Enhance the safety in utilization and convenience of display device.
In the prior art, fingerprint identification device includes substrate and the fingerprint mould group that is arranged in below substrate, the top of substrate
Equipped with light shield layer, the position of light shield layer face fingerprint mould group is equipped with multiple through-holes, and when finger presses display panel, light passes through
The through-hole is transmitted to fingerprint mould group, and then realizes the function of the identification of fingerprint.
However, since substrate will affect the transmitance of light, to will affect the rate and precision of fingerprint recognition.
Summary of the invention
In order to overcome the above-mentioned defects in the prior art, the purpose of the present invention is to provide a kind of fingerprint identification devices and aobvious
Showing device, the present invention can effectively improve the transmitance of light, and the clarity of enhancing fingerprint mould group acquisition image improves fingerprint
The rate and precision of identification.
One embodiment of the invention provides a kind of fingerprint identification device, including substrate and fingerprint mould group, the fingerprint mould group patch
It closes in the lower section of the substrate, the substrate is equipped with light shield layer, and the position of fingerprint mould group described in the light shield layer face is equipped with
Multiple through-holes, the substrate position opposite with the through-hole are equipped with area of leaving a blank, are filled with translucent material in the area of leaving a blank.
The fingerprint identification device that one embodiment of the invention provides is more due to being equipped in the position of light shield layer face fingerprint mould group
A through-hole, and leave a blank area in the setting of the position of the substrate face through-hole, and translucent material is filled in area of leaving a blank, compared to existing
There is technology, the area of leaving a blank for filling translucent material makes substrate keep integrality, under the premise of not influencing substrate strength and function, thoroughly
The light penetration in the area of leaving a blank of luminescent material filling is significantly greater than the transmitance of common substrate light, so that leaving a blank by this
The transmitance of the light in area greatly improves, due to area's face fingerprint mould group of leaving a blank, so that fingerprint mould group can collect more
More fingerprint light enhances the clarity of fingerprint mould group acquisition image, improves the rate and precision of fingerprint recognition.
Fingerprint identification device as described above, optionally, the substrate includes the glass plate being cascading, first soft
Property film layer, the first insulating layer, the second flexible membrane layer and second insulating layer, it is first flexible membrane layer, the first insulating layer, second soft
Property at least one of film layer and second insulating layer be equipped with the area of leaving a blank.
Glass plate is set in the lower section of substrate, so that the part being directly bonded with fingerprint mould group is hard parts, energy
The mark generated when enough effective reduction fingerprint mould group fittings, improves binding yield；To leave a blank area be specifically located at first flexibility
Fingerprint light can be improved at least one of film layer, the first insulating layer, the second flexible membrane layer and second insulating layer through base
The transmitance of plate, and then the collected light of fingerprint mould group is improved, so that the rate of fingerprint recognition is faster, identify more accurate.
Fingerprint identification device as described above, optionally, the area of leaving a blank includes being arranged in first flexible membrane layer
First leave a blank area and what is be arranged in second flexible membrane layer second leave a blank area；Described first leaves a blank in area filled with first
Translucent material, described second leaves a blank in area filled with the second translucent material, first translucent material and the second light transmission material
Expect identical or different.
Area's setting will be left a blank in the first flexible membrane layer and the second flexible membrane layer, the processing in area of leaving a blank is can be convenient, reduce
Manufacturing cost；By leaving a blank in the first area and second of leaving a blank and filling the first translucent material and the second translucent material respectively in area, from
And the filling respectively of identical or different translucent material to the first area and second of leaving a blank can be selected to leave a blank area according to actual needs
In, so that the optional range of light penetration is improved, to select suitable light penetration according to actual needs, to reach
Improve the rate of fingerprint recognition and the purpose of precision.
Fingerprint identification device as described above, optionally, described first leave a blank area side wall and first flexible membrane layer
Upper surface between be equipped with the first arc transition angle；Described second leaves a blank the side wall in area and the upper surface of second flexible membrane layer
Between be equipped with the second arc transition angle.
By leaving a blank first, the first arc transition angle is set between area's side wall and the upper surface of the first flexible membrane layer, thus
It can reduce and be filled in first and leave a blank first translucent material in area and the first flexible membrane layer generates the wind of bonding loosely when combining
Danger；By leaving a blank second, the second arc transition angle is set between area's side wall and the upper surface of the second flexible membrane layer, so as to
It reduces and is filled in second and leaves a blank second translucent material in area and the second flexible membrane layer generates the risk of bonding loosely when combining.
Fingerprint identification device as described above, optionally, the area of leaving a blank sequentially pass through first flexible membrane layer, first
Insulating layer, the second flexible membrane layer and second insulating layer.
The area's setting that will leave a blank is integral to run through the first flexible membrane layer, the first insulating layer, the second flexible membrane layer and the second insulation
The structure of layer can simplify the manufacture difficulty in area of leaving a blank, and reduce production cost, while the area of leaving a blank of monoblock type also can be further
Improve light penetrate substrate transmitance, enhance fingerprint mould group acquisition image clarity, improve fingerprint recognition rate and
Precision.
Fingerprint identification device as described above, optionally, the side wall in the area of leaving a blank and the upper table of the second insulating layer
Third arc transition angle is equipped between face.
By leave a blank between area's side wall and the upper surface of second insulating layer be arranged third arc transition angle, so as to drop
The risk of bonding loosely is generated when the low translucent material for being filled in area of leaving a blank and each film layer combine.
Fingerprint identification device as described above, it is optionally, described to leave a blank area just on the direction perpendicular to the substrate
Projection is more than or equal to the orthographic projection of the fingerprint mould group.
The orthographic projection in area of leaving a blank is set greater than the orthographic projection equal to fingerprint mould group, so as to adequately guarantee fingerprint
Light passes through, and fingerprint mould group is enabled to collect enough fingerprint light, ensure that the clear of fingerprint mould group acquisition image
Degree.
Fingerprint identification device as described above, optionally, on the direction perpendicular to the substrate, the shape in the area of leaving a blank
Shape and the shape of the fingerprint mould group are same or similar.
The global shape in area of leaving a blank is adapted with the global shape of fingerprint mould group, so as to guarantee that fingerprint light will not
To other regional divergences, the clarity of fingerprint mould group acquisition image is improved.
Fingerprint identification device as described above, optionally, the translucent material include polyimide material, silica material
At least one of material, High Temperature Optical glue material, amorphous silicon material.
The translucent material of the present embodiment can use above-mentioned one or more materials, also can choose other suitable materials
Material.
Another embodiment of the present invention provides a kind of display devices, including fingerprint identification device as described above.
Display device provided by the invention also has due to including the fingerprint identification device in above-mentioned technical proposal
The advantages of above-mentioned fingerprint identification device, therefore, the advantages of display device provided by the invention, repeats no more.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure diagram for the fingerprint identification device that one embodiment of the invention provides；
Fig. 2 be another embodiment of the present invention provides fingerprint identification device structure diagram；
Fig. 3 is the structure diagram for the fingerprint identification device that yet another embodiment of the invention provides.
Appended drawing reference:
100- substrate；
101- leaves a blank area；
1011- first leaves a blank area；
1012- second leaves a blank area；
110- glass plate；
The first flexible membrane layer of 120-；
The first insulating layer of 130-；
The second flexible membrane layer of 140-；
150- second insulating layer；
200- fingerprint mould group；
300- light shield layer；
310- through-hole；
400- translucent material；
The first translucent material of 410-；
The second translucent material of 420-.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.
Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.In the absence of conflict, following embodiment and implementation
Feature in example can be combined with each other.
Embodiment one
Fig. 1 is the structure diagram for the fingerprint identification device that one embodiment of the invention provides；Please refer to Fig. 1.The present embodiment mentions
The lower section of substrate 100, base are fitted in for a kind of fingerprint identification device, including substrate 100 and fingerprint mould group 200, fingerprint mould group 200
Plate 100 is equipped with light shield layer 300, and the position of 300 face fingerprint mould group 200 of light shield layer is equipped with multiple through-holes 310, substrate 100 with
The opposite position of through-hole 310 is equipped with area 101 of leaving a blank, filled with translucent material 400 in area 101 of leaving a blank.
Specifically, the fingerprint identification device of the present embodiment includes substrate 100 and fingerprint mould group 200, fingerprint mould group 200 is bonded
In the lower section of substrate 100, specifically connection can be realized using modes such as bondings, it is to be understood that fingerprint mould group 200 can be straight
It connects fitting on the substrate 100, can also be indirectly bonded on the substrate 100 by other components.The top of substrate 100 is equipped with
Light shield layer 300, the top of light shield layer 300 are equipped with electrode layer and various functional film layers, substrate 100, light shield layer 300, electrode layer and
Functional film layer collectively forms display panel, to realize normal light-emitting function.The position of 300 face fingerprint mould group 200 of light shield layer
It sets and is equipped with multiple through-holes 310, when the finger of user presses display panel, fingerprint mould group 200 is acquired in one's hands by the through-hole 310
The light for referring to fingerprint, to realize the identification of fingerprint.
Since fingerprint light will pass through substrate 100 in the distance for being transferred to fingerprint mould group 200, and substrate 100 can stop
A part of light passes through, to weaken the light for reaching fingerprint mould group 200 to a certain extent, affects fingerprint mould group
The clarity of 200 acquisition images, reduces the rate and precision of fingerprint recognition.
To solve this problem, the application is equipped with area 101 of leaving a blank, area of leaving a blank in the position opposite with through-hole 310 of substrate 100
Translucent material 400 is filled in 101, the area 101 of leaving a blank filled with translucent material 400 is compared to other positions on substrate 100
The transmitance of fingerprint light can be greatly improved, so that fingerprint mould group 200 can collect more fingerprint light, is increased
Strong fingerprint mould group 200 acquires the clarity of image, improves the rate and precision of fingerprint recognition.
In addition, substrate 100 can also be made integrally to keep integrality, made after filling translucent material 400 in area 101 of leaving a blank
Obtaining substrate 100 has enough intensity, still can provide support for upper layer film layer, prevents because setting is left a blank on the substrate 100
Area 101 and caused by fail.
Further, on the direction perpendicular to substrate 100, the orthographic projection in area 101 of leaving a blank is more than or equal to fingerprint mould group 200
Orthographic projection.
The orthographic projection in area 101 of leaving a blank is set greater than the orthographic projection equal to fingerprint mould group 200, so as to adequately protect
Passing through for card fingerprint light, enables fingerprint mould group 200 to collect enough fingerprint light, ensure that fingerprint mould group 200 is adopted
Collect the clarity of image.
Further, on the direction perpendicular to substrate 100, the shape in area 101 of leaving a blank and the shape of fingerprint mould group 200
It is same or similar.
The global shape in area 101 of leaving a blank is adapted with the global shape of fingerprint mould group 200, so as to guarantee fingerprint light
Line will not improve the clarity that fingerprint mould group 200 acquires image to other regional divergences left a blank outside area 101.
The shape in area 101 of leaving a blank can be selected as needed with the shape of fingerprint mould group 200, such as can be selected as justifying
Shape, ellipse, rectangle, triangle etc., the present embodiment does not further limit this.
Further, in this embodiment translucent material 400 including doping transparent particle polyimide material, silica
At least one of material, High Temperature Optical glue material, amorphous silicon material.
The translucent material 400 of the present embodiment can use the mixture of above-mentioned one or more materials, also can choose it
The material that he is suitable for.
Specifically, by taking the polyimide material of doping transparent particle as an example, since substrate 100 in the prior art is generally by mixing
The polyimide material of miscellaneous yellow particles constitutes flexible membrane layer, and the flexible membrane layer of yellow can seriously affect the logical of fingerprint light
It crosses, and then influences the clarity that fingerprint mould group 200 acquires image；Therefore area 101 of leaving a blank is set on the substrate 100, and leaving a blank
The polyimide material of filling doping transparent particle, makes fingerprint light be transferred to fingerprint mould group behind area 101 of leaving a blank in area 101
200, to substantially increase the transmitance of fingerprint light, improve the rate and precision of fingerprint recognition.Existed using such scheme
Under the premise of guaranteeing translucent effect, flood can reduce using the cost of the polyimide material of doping transparent particle.
Fingerprint identification device provided in this embodiment is by being equipped with area of leaving a blank in the position opposite with through-hole 310 of substrate 100
101, area 101 of leaving a blank is interior filled with translucent material 400, and the area 101 of leaving a blank filled with translucent material 400 is compared on substrate 100
Other positions can greatly improve the transmitance of fingerprint light so that fingerprint mould group 200 can collect more
Fingerprint light enhances the clarity that fingerprint mould group 200 acquires image, improves the rate and precision of fingerprint recognition.
Embodiment two
Fig. 2 be another embodiment of the present invention provides fingerprint identification device structure diagram；Referring to figure 2..The present embodiment
A kind of fingerprint identification device is provided, including substrate 100 and fingerprint mould group 200, fingerprint mould group 200 are fitted in the lower section of substrate 100,
Substrate 100 is equipped with light shield layer 300, and the position of 300 face fingerprint mould group 200 of light shield layer is equipped with multiple through-holes 310, substrate 100
The position opposite with through-hole 310 is equipped with area 101 of leaving a blank, filled with translucent material 400 in area 101 of leaving a blank.
Wherein, substrate 100 includes the glass plate 110 being cascading, the first flexible membrane layer 120, the first insulating layer
130, the second flexible membrane layer 140 and second insulating layer 150, the first flexible membrane layer 120, the first insulating layer 130, the second flexible membrane layer
At least one of 140 and second insulating layer 150 are equipped with the area 101 of leaving a blank.
The present embodiment is by being arranged glass plate 110 in the lower section of substrate 100, so that directly pasting with fingerprint mould group 200
The part of conjunction is hard parts, can effectively reduce fingerprint mould group 200 using the stiffness and intensity of hard parts itself and be bonded
When the mark that generates, improve binding yield.
In addition, the area 101 that will leave a blank is specifically located at the first flexible membrane layer 120, the first insulating layer 130, the second flexible membrane layer
The transmitance that fingerprint light penetrates substrate 100 can be improved at least one of 140 and second insulating layer 150, and then improved
The collected light of fingerprint mould group 200 identifies more accurate so that the rate of fingerprint recognition is faster.
In an optional embodiment, area 101 of leaving a blank includes that first be arranged in the first flexible membrane layer 120 is left a blank
Area 1011 and what is be arranged in the second flexible membrane layer 140 second leave a blank area 1012；First leaves a blank in area 1011 filled with first thoroughly
Luminescent material 410, second leaves a blank in area 1012 filled with the second translucent material 420, the first translucent material 410 and the second translucent material
420 can be identical or different.
Present embodiment will leave a blank the setting of area 101 in the first flexible membrane layer 120 and the second flexible membrane layer 140, Ke Yifang
Just it leaves a blank the processing in area 101, reduces manufacturing cost.By leaving a blank and being filled in area 1012 respectively in the first area 1011 and second of leaving a blank
First translucent material 410 and the second translucent material 420, so as to select identical or different translucent material according to actual needs
Filling respectively to the first area 1011 and second of leaving a blank leave a blank in area 1012, to improve the optional range of light penetration,
To select suitable light penetration according to actual needs, to achieve the purpose that the rate and precision that improve fingerprint recognition.
Further, it first leaves a blank between the side wall in area 1011 and the upper surface of the first flexible membrane layer 120 equipped with the first circle
Arc transition angle；Second, which leaves a blank, is equipped with the second arc transition angle between the side wall in area 1012 and the upper surface of the second flexible membrane layer 140.
First arc transition is set between 1011 side wall of area and the upper surface of the first flexible membrane layer 120 by leaving a blank first
Angle is filled in first and leaves a blank first translucent material 410 in area 1011 and when the first flexible membrane layer 120 combines so as to reduce
Generate the risk of bonding loosely；It is arranged between 1012 side wall of area and the upper surface of the second flexible membrane layer 140 by leaving a blank second
Second arc transition angle is filled in the second the second translucent material 420 and the second flexible membrane for leaving a blank area 1012 so as to reduce
The risk of bonding loosely is generated when layer 140 combines.
Other features of the present embodiment are as described in above-described embodiment one, and details are not described herein.
The polyimides material of doping yellow particles is selected with the first flexible membrane layer 120 and the second flexible membrane layer 140 below
For material, a kind of possible production method of the fingerprint identification device of present embodiment is illustrated:
Step 1: fingerprint mould group 200 to be fitted in the side of glass plate 110, and prepared in the other side of glass plate 110
First flexible membrane layer 120；
It processes first in the position of 120 face fingerprint mould group 200 of the first flexible membrane layer to leave a blank area 1011, to guarantee first
It leaves a blank the aperture precision in area 1011, can be processed using the method for laser cutting；
The right angle first left a blank between the side wall in area 1011 and the upper surface of the first flexible membrane layer 120 carries out arc transition
Processing, processes the first arc transition angle；
It leaves a blank first and fills the first translucent material 410 in area 1011, specifically, silk can be used in the first translucent material 410
The method of print is filled to first and is left a blank in area 1011.
Step 2: preparing the first insulating layer 130 by sputtering technology in the first flexible membrane layer 120 prepared.
Step 3: the method using the above-mentioned first step processes the second flexible membrane on the first insulating layer 130 prepared
Layer 140, and successively process second and leave a blank and area 1012, the second arc transition angle and leave a blank second and fill second in area 1012
Translucent material 420.
Step 4: the method using above-mentioned second step processes the second insulation in the second flexible membrane layer 140 prepared
Layer 150.
Step 5: processing light shield layer 300 in second insulating layer 150, and multiple through-holes are opened up on light shield layer 300
310。
It should be noted that a kind of above-mentioned manufacture for providing only possible fingerprint identification device, art technology
Personnel, which can according to need, to be improved the above method to obtain required structure (for example, in the first insulating layer 130 and second
Area of leaving a blank etc. is also provided on insulating layer 150).
Fingerprint identification device provided in this embodiment can greatly improve the transmitance of fingerprint light, so that fingerprint
Mould group 200 can collect more fingerprint light, enhance the clarity that fingerprint mould group 200 acquires image, improve fingerprint and know
Other rate and precision.
Embodiment three
Fig. 3 is the structure diagram for the fingerprint identification device that yet another embodiment of the invention provides；Referring to figure 3..The present embodiment
A kind of fingerprint identification device is provided, including substrate 100 and fingerprint mould group 200, fingerprint mould group 200 are fitted in the lower section of substrate 100,
Substrate 100 is equipped with light shield layer 300, and the position of 300 face fingerprint mould group 200 of light shield layer is equipped with multiple through-holes 310, substrate 100
The position opposite with through-hole 310 is equipped with area 101 of leaving a blank, filled with translucent material 400 in area 101 of leaving a blank.
Wherein, substrate 100 includes the glass plate 110 being cascading, the first flexible membrane layer 120, the first insulating layer
130, the second flexible membrane layer 140 and second insulating layer 150, area 101 of leaving a blank sequentially pass through the insulation of the first flexible membrane layer 120, first
The 130, second flexible membrane layer 140 of layer and second insulating layer 150.
The present embodiment area 101 that will leave a blank is arranged that integral to run through the first flexible membrane layer 120, the first insulating layer 130, second soft
Property film layer 140 and second insulating layer 150 structure, can simplify the manufacture difficulty in area 101 of leaving a blank, reduce production cost, simultaneously
The area 101 of leaving a blank of monoblock type can also further increase the transmitance that light penetrates substrate 100, enhance fingerprint mould group 200 and adopt
The clarity for collecting image, improves the rate and precision of fingerprint recognition.
Further, it leaves a blank and is equipped with third arc transition between the side wall in area 101 and the upper surface of second insulating layer 150
Angle.
By leave a blank between 101 side wall of area and the upper surface of second insulating layer 150 be arranged third arc transition angle, thus
It can reduce the translucent material 400 for being filled in area 101 of leaving a blank and when each film layer combines generate the risk of bonding loosely.
Other features of the present embodiment are as described in above-described embodiment one and embodiment two, and details are not described herein.
Example IV
The present embodiment provides a kind of display devices, and including embodiment one as above, into embodiment three, any fingerprint is known
Other device.
Display device provided in this embodiment as include any of the above-described embodiment described in fingerprint identification device,
Also it can be improved the transmitance of light, the clarity of enhancing fingerprint mould group acquisition image improves the rate and precisely of fingerprint recognition
The advantages of degree, display device provided in this embodiment that details are not described herein again.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be direct phase
Even, can also indirectly connected through an intermediary, the interaction that can be connection or two elements inside two elements is closed
System.For the ordinary skill in the art, above-mentioned term in the present invention specific can be understood as the case may be
Meaning.
It should be noted that in the description of the present invention, term " first ", " second ", which are only used for facilitating, describes different portions
Part is not understood to indicate or imply ordinal relation, relative importance or the number for implicitly indicating indicated technical characteristic
Amount." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one of the features.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of fingerprint identification device, which is characterized in that including substrate and fingerprint mould group, the fingerprint mould group is fitted in the base
The lower section of plate, the substrate are equipped with light shield layer, and the position of fingerprint mould group described in the light shield layer face is equipped with multiple through-holes, institute
It states the substrate position opposite with the through-hole and is equipped with area of leaving a blank, be filled with translucent material in the area of leaving a blank.
2. fingerprint identification device according to claim 1, which is characterized in that the substrate includes the glass being cascading
Glass plate, the first flexible membrane layer, the first insulating layer, the second flexible membrane layer and second insulating layer, first flexible membrane layer, first are absolutely
At least one of edge layer, the second flexible membrane layer and second insulating layer are equipped with the area of leaving a blank.
3. fingerprint identification device according to claim 2, which is characterized in that the area of leaving a blank includes being arranged described first
First in flexible membrane layer leaves a blank area and what is be arranged in second flexible membrane layer second leave a blank area；Described first leaves a blank in area
Filled with the first translucent material, described second leaves a blank in area filled with the second translucent material, first translucent material with it is described
Second translucent material is identical or different.
4. fingerprint identification device according to claim 3, which is characterized in that the described first side wall and described for leaving a blank area
The first arc transition angle is equipped between the upper surface of one flexible membrane layer；Described second leave a blank area side wall and second flexible membrane
The second arc transition angle is equipped between the upper surface of layer.
5. fingerprint identification device according to claim 2, which is characterized in that it is soft that the area of leaving a blank sequentially passes through described first
Property film layer, the first insulating layer, the second flexible membrane layer and second insulating layer.
6. fingerprint identification device according to claim 5, which is characterized in that the side wall in the area of leaving a blank is exhausted with described second
Third arc transition angle is equipped between the upper surface of edge layer.
7. fingerprint identification device according to claim 1, which is characterized in that on the direction perpendicular to the substrate, institute
The orthographic projection for stating area of leaving a blank is more than or equal to the orthographic projection of the fingerprint mould group.
8. fingerprint identification device according to claim 1, which is characterized in that on the direction perpendicular to the substrate, institute
The shape for stating the shape and the fingerprint mould group in area of leaving a blank is same or similar.
9. fingerprint identification device according to claim 1, which is characterized in that the translucent material includes polyimides material
At least one of material, silica material, High Temperature Optical glue material, amorphous silicon material.
10. a kind of display device, which is characterized in that including the fingerprint identification device as described in any in claim 1-9.
Priority Applications (1)
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| CN201910196198.8A CN109948512B (en) | 2019-03-15 | 2019-03-15 | Fingerprint identification device and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910196198.8A CN109948512B (en) | 2019-03-15 | 2019-03-15 | Fingerprint identification device and display device |
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| CN109948512B CN109948512B (en) | 2021-06-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI739610B (en) * | 2019-10-25 | 2021-09-11 | 采鈺科技股份有限公司 | Optical fingerprint sensors |
| CN114023184A (en) * | 2021-10-18 | 2022-02-08 | 业成科技（成都）有限公司 | Display screen, display screen manufacturing method and electronic equipment |
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