CN106503635B - Cover board, input module and electronic device for optical finger print identification - Google Patents
Cover board, input module and electronic device for optical finger print identification Download PDFInfo
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- CN106503635B CN106503635B CN201610888766.7A CN201610888766A CN106503635B CN 106503635 B CN106503635 B CN 106503635B CN 201610888766 A CN201610888766 A CN 201610888766A CN 106503635 B CN106503635 B CN 106503635B
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- Prior art keywords
- ink layer
- finger print
- cover board
- optical finger
- substrate
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1341—Sensing with light passing through the finger
Abstract
The invention discloses a kind of cover boards for optical finger print identification, it includes fingerprint identification area, fingerprint identification area includes opaque portion and multiple transmittance sections for being arranged at intervals in opaque portion, for the size of each transmittance section less than 200 μm, the proportional region of the area of the gross area and fingerprint identification area of multiple transmittance sections is 20%-35%.In above-mentioned cover board, below the settable fingerprint identification area of optical finger print mould group, since the size of each transmittance section is less than 200 μm, the proportional region of the area of the gross area and fingerprint identification area of multiple transmittance sections is 20%-35%, so, visually optical finger print mould group can not only be hidden in below cover board, realizes the hiding effect of optical finger print mould group, it is ensured that enough light can through cover board to carry out fingerprint recognition.The invention also discloses a kind of input module and electronic devices.
Description
Technical field
The present invention relates to fingerprint identification technology more particularly to it is a kind of for optical finger print identification cover board, input module and
Electronic device.
Background technique
In the related art, the function that optical finger print mould group realizes fingerprint recognition, optics can be used in certain electronic devices
Fingerprint mould group is arranged in below the cover board of electronic device.Therefore, when optical finger print mould group is hidden in below cover board, how to guarantee
The light transmittance of cover board becomes technical problem to be solved to carry out optical finger print identification.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention provides a kind of use
In cover board, a kind of input module and a kind of electronic device of optical finger print identification.
The cover board for optical finger print identification of embodiment of the present invention includes fingerprint identification area, and fingerprint identification area includes non-
Hyalomere and the multiple transmittance sections being arranged at intervals in opaque portion, the size of each transmittance section is less than 200 μm, multiple transmittance sections
The gross area and fingerprint identification area area proportional region be 20%-35%.
In above-mentioned cover board, below the settable fingerprint identification area of optical finger print mould group, since the size of each transmittance section is less than
200 μm, the proportional region of the area of the gross area and fingerprint identification area of multiple transmittance sections is 20%-35%, in this way, not only from view
Feeling upper can be such that optical finger print mould group is hidden in below cover board, realize the hiding effect of optical finger print mould group, it is ensured that enough
Light can through cover board to carry out fingerprint recognition.
In some embodiments, the fingerprint identification area includes the substrate of light transmission and is coated on the substrate non-
Bright ink layer, the nontransparent ink layer are formed with spaced multiple apertures；
A part of the substrate corresponding with the nontransparent ink layer and the nontransparent ink layer limit jointly
The opaque portion, another part of the substrate corresponding with the aperture and the aperture limit the light transmission jointly
Portion.
In some embodiments, the fingerprint identification area includes the substrate of light transmission and is coated on the substrate non-
Bright ink layer, the cover board offer multiple through-holes through the substrate and the nontransparent ink layer, the multiple through-hole
Interval setting；
The part of the substrate corresponding with the nontransparent ink layer and the nontransparent ink layer limit institute jointly
Opaque portion is stated, the through-hole limits the transmittance section.
In some embodiments, the fingerprint identification area includes the substrate of light transmission, multiple clear ink layers and nontransparent
Ink layer, for the multiple clear ink interlayer every being coated on the substrate, the nontransparent ink layer painting is located at the substrate
Surrounding that is upper and being located at the multiple clear ink layer；
A part of the substrate corresponding with the nontransparent ink layer and the nontransparent ink layer limit jointly
The opaque portion, another part and the multiple clear ink layer of the substrate corresponding with the multiple clear ink layer
The multiple transmittance section is limited jointly.
In some embodiments, the clear ink layer is infrared ray ink layer.
In some embodiments, the thickness of the clear ink layer is less than 20 μm.
In some embodiments, the clear ink layer be in bar shaped, the thickness direction of the clear ink layer with it is described
Angular range between substrate is 30-60 °.
In some embodiments, the clear ink layer be in bar shaped, the thickness direction of the clear ink layer with it is described
Angle between substrate is 45 °.
In some embodiments, the multiple transmittance section is evenly spaced on.
In some embodiments, the distance between two adjacent described transmittance sections range is 20-30 μm.
In some embodiments, the size range of the transmittance section is 20-35 μm.
In some embodiments, the size of the transmittance section is 30 μm.
In some embodiments, the ratio model of the gross area of the multiple transmittance section and the area of the fingerprint identification area
It encloses for 25%-30%.
In some embodiments, the size of the fingerprint identification area is 6mm*4mm.
The input module of embodiment of the present invention includes identifying described in any of the above embodiment for optical finger print
Cover board and optical finger print mould group.Optical finger print mould group is arranged below fingerprint identification area, and is used for fingerprint recognition.
In above-mentioned input module, below the settable fingerprint identification area of optical finger print mould group, due to the size of each transmittance section
Less than 200 μm, the proportional region of the area of the gross area and fingerprint identification area of multiple transmittance sections is 20%-35%, in this way, not only
Optical finger print mould group can visually be hidden in below cover board, realizes the hiding effect of optical finger print mould group, it is ensured that
Enough light can be through cover board to carry out fingerprint recognition.
The electronic device of embodiment of the present invention includes the lid for fingerprint recognition of any of the above embodiment
Plate.
In above-mentioned electronic device, below the settable fingerprint identification area of optical finger print mould group, due to the size of each transmittance section
Less than 200 μm, the proportional region of the area of the gross area and fingerprint identification area of multiple transmittance sections is 20%-35%, in this way, not only
Optical finger print mould group can visually be hidden in below cover board, realizes the hiding effect of optical finger print mould group, it is ensured that
Enough light can be through cover board to carry out fingerprint recognition.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention is from combining in description of the following accompanying drawings to embodiment by change
It obtains obviously and is readily appreciated that, in which:
Fig. 1 is the floor map of the cover board for optical finger print identification of embodiment of the present invention；
Fig. 2 is the floor map of the fingerprint identification area of the cover board of embodiment of the present invention；
Fig. 3 be fingerprint identification area in Fig. 2 along A-A to a diagrammatic cross-section；
Fig. 4 be the cover board in Fig. 2 fingerprint identification area along A-A to another diagrammatic cross-section；
Fig. 5 be the cover board in Fig. 2 fingerprint identification area along A-A to another diagrammatic cross-section；
Fig. 6 is another floor map of the fingerprint identification area of the cover board of embodiment of the present invention；
Fig. 7 is diagrammatic cross-section of the fingerprint identification area in Fig. 6 along B-B direction；
Fig. 8 is the floor map of the transmittance section of the fingerprint identification area of embodiment of the present invention；
Fig. 9 is the floor map of another transmittance section of the fingerprint identification area of embodiment of the present invention；
Figure 10 is the floor map of another transmittance section of the fingerprint identification area of embodiment of the present invention；
Figure 11 is the schematic illustration of the input module of embodiment of the present invention.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
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 " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used for
Purpose is described, relative importance is not understood to indicate or imply or implicitly indicates the quantity of indicated technical characteristic.
" first " is defined as a result, the feature of " second " can explicitly or implicitly include one or more feature.?
In description of the invention, the meaning of " plurality " is two or more, unless otherwise specifically defined.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected or can mutually communicate；It can be directly connected, it can also be by between intermediary
It connects connected, can be the connection inside two elements or the interaction relationship of two elements.For the ordinary skill of this field
For personnel, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
Following disclosure provides many different embodiments or example is used to realize different structure of the invention.In order to
Simplify disclosure of the invention, hereinafter the component of specific examples and setting are described.Certainly, they are merely examples, and
And it is not intended to limit the present invention.In addition, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, itself not indicate between discussed various embodiments and/or setting
Relationship.In addition, the present invention provides various specific techniques and material example, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
Fig. 1 and Fig. 2 is please referred to, the cover board 100 for optical finger print identification of embodiment of the present invention includes fingerprint recognition
Area 10, fingerprint identification area 10 include opaque portion 12 and multiple transmittance sections 14.Multiple transmittance sections 14 are arranged at intervals on opaque portion
In 12.The size of each transmittance section 14 is less than 200 μm, the ratio of the area of the gross area and fingerprint identification area 10 of multiple transmittance sections 14
Example range is 20%-35%.
In above-mentioned cover board 100, settable 10 lower section of fingerprint identification area of optical finger print mould group, due to the ruler of each transmittance section 14
It is very little less than 200 μm, the proportional region of the area of the gross area and fingerprint identification area 10 of multiple transmittance sections 14 is 20%-35%, such as
This, not only can visually make optical finger print mould group be hidden in 100 lower section of cover board, realize the hiding effect of optical finger print mould group
Fruit, it is ensured that enough light can be through cover board 100 to carry out fingerprint recognition.
The cover board 100 of embodiment of the present invention can be applied to electronic device, and electronic device is, for example, mobile phone or tablet computer,
So that the hiding effect of optical finger print mould group may be implemented in electronic device, it is ensured that enough light can penetrate cover board
100 to carry out fingerprint recognition.It should be noted that the type of electronic device include but is not limited to more than example.
It needs to illustrate to be also possible to non-transparent, it is noted that opaque portion 12 can be light transmission.Light includes visible
Light and black light.The cross section (section for being parallel to the upper surface of cover board 100) of transmittance section 14 can form the figure of closed loop,
It can make the maximum circle of diameter in closed loop pattern, diameter of a circle is the size of transmittance section 14.In other words, diameter of a circle is less than
200μm。
Such as shown in Fig. 8, the cross section of transmittance section 14 is regular pentagon, and the size of transmittance section 14 is the inscribe of regular pentagon
Diameter of a circle.
As also shown in fig. 9, the cross section of transmittance section 14 is irregular figure, then the diameter in irregular figure is maximum
Diameter of a circle is the size of transmittance section 14.
Again as shown in Figure 10, the cross section of transmittance section 14 is rectangle, and the maximum diameter of a circle of diameter in rectangle is
Rectangular width, then, the size of transmittance section 14 is rectangular width.
The gross area of above-described transmittance section 14 is the gross area of the cross section of transmittance section 14, the face of fingerprint identification area 10
Product is the area of the cross section of fingerprint identification area 10.
Specifically, cover board 100 includes display area 16 and non-display area 18.Normally, the intermediate region of cover board 100 is made
For display area 16, non-display area 18 is arranged in around display area 16.For example, non-display area 18 is arranged in viewing area
The top and or bottom side in domain 16.Fingerprint identification area 10 can be set in non-display area 18.
In order to enable electronic device is more beautiful, ink, the face of ink can be sprayed in the lower surface of non-display area 18
Color is, for example, that colors, the concrete conditions such as white, black or blue can be arranged according to actual needs.Ink not only can satisfy
Demand of the user to the electronic device of different colours can also cover the structure inside electronic device to reach beautification electronic device
Effect.
Referring to Fig. 3, in some embodiments, fingerprint identification area 10 includes that the substrate 20 of light transmission and painting are located at substrate 20
On nontransparent ink layer 22, nontransparent ink layer 22 is formed with spaced multiple apertures 24.
A part and nontransparent ink layer 22 of substrate 20 corresponding with nontransparent ink layer 22 limit nontransparent jointly
Portion 12, another part of substrate 20 corresponding with aperture 24 and aperture 24 limit transmittance section 14 jointly.
In this way, opaque portion 12 and the structure of transmittance section 14 are simple, be conducive to the manufacture of cover board 100.In addition, light is successively worn
Aperture 24 and substrate 20 are crossed to be emitted to 20 top of substrate, light reaches the finger surface back reflection outside substrate 20, the light of reflection
Line enters 20 lower section of substrate after substrate 20 and aperture 24 successively to realize the function of optical finger print identification.
Since light is directly through substrate 20, so that light penetration is preferable, be conducive to carry out fingerprint recognition.It needs to illustrate
, light can be visible light, is also possible to infrared ray.Such as the wavelength of visible light is 550nm, the wavelength of infrared ray is
850nm。
Specifically, substrate 20 includes upper surface 20a and lower surface 20b.It is appreciated that the upper surface 20a of substrate 20 is defeated
The appearance for entering component 200, towards user.User can carry out corresponding gesture operation on the 20a of upper surface, such as click,
The operation such as pressing or sliding realizes corresponding function to control electronic device.Nontransparent ink layer 22, which can apply, is located at lower surface 20b.
The material of substrate 20 can be made of translucent materials such as glass, ceramics or sapphires.Since substrate 20 is due to conduct
The input part of electronic device, substrate 20 are often subject to the contact such as collide or scratch.For example, electronic device is put into pocket by user
When, substrate 20 may be scratched by the key in user's pocket and be damaged.
Therefore, the material of substrate 20 can use the biggish material of hardness, such as above sapphire material.Certainly,
Protection board can be bonded to prevent substrate 20 to be scraped off in the upper surface 20a of substrate 20.
Referring to Fig. 4, in some embodiments, fingerprint identification area 10 includes that the substrate 20 of light transmission and painting are located at substrate 20
On nontransparent ink layer 22, cover board 100 offers multiple through-holes 26, Duo Getong through substrate 20 and nontransparent ink layer 22
The setting of the interval of hole 26.
The part of substrate 20 corresponding with nontransparent ink layer 22 and nontransparent ink layer 22 limit opaque portion jointly
12, through-hole 26 limits transmittance section 14.
In this way, light can pass through through-hole 26 to carry out fingerprint recognition, light is emitted to substrate 20 directly through through-hole 26
Top, so that the light transmittance of cover board 100 is preferable.In addition, user is difficult to perceive lid by naked eyes since the size of through-hole 26 is smaller
Through-hole 26 is offered on plate 100.
In one example, when manufacturing fingerprint identification area 10, it can first be coated with nontransparent ink layer 22 on the base plate 20, so
It is processed in fingerprint identification area 10 by the processing method of laser afterwards and forms multiple through-holes 26, so as to form opaque portion 12
And transmittance section 14.
Referring to Fig. 5, in some embodiments, fingerprint identification area 10 includes substrate 20, the multiple clear inks of light transmission
Layer 28 and nontransparent ink layer 22, multiple intervals of clear ink layer 28 are coated on the base plate 20, and the nontransparent painting of ink layer 22 is located at
Surrounding on substrate 20 and positioned at multiple clear ink layers 28.
A part and nontransparent ink layer 22 of substrate 20 corresponding with nontransparent ink layer 22 limit nontransparent jointly
Portion 12, another part and multiple clear ink layers 28 of substrate 20 corresponding with multiple clear ink layers 28 limit multiple jointly
Transmittance section 14.
In this way, light, which can pass through clear ink layer 28, is emitted to the top of substrate 20 to carry out fingerprint recognition.
It should be pointed out that above nontransparent ink layer 22 can be the colors such as white, black or blue.It can manage
Solution, the color of nontransparent ink layer 22 can specifically be set according to the actual situation.
In some embodiments, clear ink layer 28 is infrared ray ink layer (IR ink layer).
In this way, clear ink layer 28 can keep higher light transmittance, such as thoroughly when the light of fingerprint recognition is infrared ray
The light transmittance through infrared ray of gloss oil layer of ink 28 is greater than 90%, and in other words, light source 102 is emitted to the infrared of clear ink layer 28
In line, 90% or more infrared ray can penetrate clear ink layer 28.
Specifically, infrared ray ink layer can make infrared ray pass through, and stop visible light and ultraviolet light.Infrared ray ink
Layer is shown as black or the color close with black, such as navy blue under visible light.
As previously discussed, nontransparent ink layer 22 can be white, the nontransparent ink of infrared ray ink layer setting white
In layer 22, the contrast of color is higher, still, since the size of clear ink layer 28 is smaller, so that even if nontransparent ink layer
22 be white, and the also more difficult presence for perceiving clear ink layer 28 of the naked eyes of user solves in tradition, uses the non-of white
The technical issues of cannot achieve optical finger print identification when transparent ink layer 22.
In order to guarantee the light transmittance of clear ink layer 28, in some embodiments, the thickness of clear ink layer 28 is less than
20μm。
Fig. 6 and Fig. 7 is please referred to, in some embodiments, clear ink layer 28 is in bar shaped, the thickness of clear ink layer 28
Angle α range between direction and substrate 20 is 30-60 °.Preferably, between the thickness direction and substrate 20 of clear ink layer 28
Angle α be 45 °.
In this way, can not only guarantee the light transmittance of clear ink layer 28 when the color of nontransparent ink layer 22 is white,
The contrast between clear ink layer 28 and nontransparent ink layer 22 can also be reduced, so that human eye is not readily apparent light transmission oil
Layer of ink 28.
In some embodiments, multiple transmittance sections 14 are evenly spaced on.
In this way, the formation easy to manufacture of multiple transmittance sections 14, advantageously reduces the production cost of cover board 100.In an example
In, multiple transmittance sections 14 are distributed in matrix, such as shown in the transmittance section 14 of Fig. 2.
In addition, so that it is more uniform through the light of 10 various pieces of fingerprint identification area, so that optical finger print identification
Effect is preferable.
In some embodiments, the distance between two adjacent transmittance sections 14 range is 20-30 μm.
If two transmittance sections 14 are closer, two transmittance sections 14 may connection, be unfavorable for the manufacture of transmittance section 14 at
Type.If two transmittance sections 14 are apart from the gross area and 10 domain of fingerprint identification area for, being difficult to meet farther out multiple transmittance sections 14
The proportional region of area.
Therefore, the distance between two above transmittance section 14 range not only makes transmittance section 14 easy to manufacture, can also protect
Card has enough light to pass through cover board 100 to realize the function of optical finger print identification.
In some embodiments, the size range of transmittance section 14 is 20-35 μm.In one example, transmittance section 14
Having a size of 30 μm.
In this way, human eye is not readily apparent transmittance section 14, optical finger print identification mould group can visually be hidden under cover board 100
Side.
In some embodiments, the proportional region of the gross area and the area of fingerprint identification area 10 of multiple transmittance sections 14 is
25%-30%.
In some embodiments, the size of fingerprint identification area 10 is 6mm*4mm.
In this way, according to the finger-print region size of the finger of user, when the size of fingerprint identification area 10 is 6mm*4mm, not only
The effect of fingerprint recognition may be implemented, it is also possible that the size of fingerprint identification area 10 is smaller, cover board 100 is easy to manufacture.
In one example, the shape of fingerprint identification area 10 is rectangle, then, the length L of fingerprint identification area 10 can be
6mm, width W can be 4mm.In other embodiments, the shape of fingerprint identification area 10 can be for example the shapes such as oblong.
11 are please referred to, the input module 300 of embodiment of the present invention includes referring to for optics for any of the above embodiment
The cover board 100 and optical finger print mould group 200 of line identification.Optical finger print mould group 200 is arranged below fingerprint identification area 10, and is used for
Fingerprint recognition.
In above-mentioned input module 300, settable 10 lower section of fingerprint identification area of optical finger print mould group 200, due to each light transmission
For the size in portion 14 less than 200 μm, the proportional region of the area of the gross area and fingerprint identification area 10 of multiple transmittance sections 14 is 20%-
35%, in this way, optical finger print mould group 200 not only can visually be made to be hidden in 100 lower section of cover board, realize optical finger print mould group
200 hiding effects, it is ensured that enough light can through cover board 100 to carry out fingerprint recognition.
Specifically, optical finger print mould group 200 includes light source 202 and daylighting processing unit 204.The light that light source 202 is emitted
Through reflecting on the fingerprint strain line of finger surface after cover board 100, the ridge line of finger reflects less light to daylighting processing unit
204, Gu Wen reflect more light to daylighting processing unit 204.
Daylighting processing unit 204 receives the light of finger surface fingerprint reflection, and handles shape according to the intensity of transmitting light
At finger print pattern, daylighting processing unit 204 compares obtained finger print pattern and predetermined pattern, to realize fingerprint
Function.
The electronic device of embodiment of the present invention includes the lid for fingerprint recognition of any of the above embodiment
Plate 100.
In above-mentioned electronic device, below the settable fingerprint identification area of optical finger print mould group, due to the size of each transmittance section
Less than 200 μm, the proportional region of the area of the gross area and fingerprint identification area of multiple transmittance sections is 20%-35%, in this way, not only
Optical finger print mould group can visually be hidden in below cover board, realizes the hiding effect of optical finger print mould group, it is ensured that
Enough light can be through cover board to carry out fingerprint recognition.
In the description of this specification, reference term " embodiment ", " certain embodiments ", " schematically implementation
What the description of mode ", " example ", " specific example " or " some examples " etc. meant to describe in conjunction with the embodiment or example
Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the invention.In this specification
In, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description
Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
While embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that:
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principle of the present invention and objective and become
Type, the scope of the present invention are defined by the claims and their equivalents.
Claims (15)
1. a kind of cover board for optical finger print identification, which is characterized in that the cover board includes fingerprint identification area, and the fingerprint is known
Other area includes opaque portion and multiple transmittance sections for being arranged at intervals in the opaque portion, and the size of each transmittance section is small
In 200 μm, the cross section of the transmittance section forms closed loop pattern, makees the maximum circle of diameter, the circle in the closed loop pattern
Diameter be the transmittance section size, the ratio model of the area of the gross area of the multiple transmittance section and the fingerprint identification area
It encloses for 20%-35%, the size range of the transmittance section is 20-35 μm.
2. the cover board for optical finger print identification as described in claim 1, which is characterized in that the fingerprint identification area includes saturating
The substrate of light and it is coated with nontransparent ink layer on the substrate, the nontransparent ink layer is formed with spaced multiple
Aperture；
A part of the substrate corresponding with the nontransparent ink layer and the nontransparent ink layer limit described jointly
Opaque portion, another part of the substrate corresponding with the aperture and the aperture limit the transmittance section jointly.
3. the cover board for optical finger print identification as described in claim 1, which is characterized in that the fingerprint identification area includes saturating
The substrate of light and it is coated with nontransparent ink layer on the substrate, the cover board is offered through the substrate and described non-
Multiple through-holes of bright ink layer, the multiple through-hole interval setting；
The part of the substrate corresponding with the nontransparent ink layer and the nontransparent ink layer limit described non-jointly
Hyalomere, the through-hole limit the transmittance section.
4. the cover board for optical finger print identification as described in claim 1, which is characterized in that the fingerprint identification area includes saturating
The substrate of light, multiple clear ink layers and nontransparent ink layer, the multiple clear ink interlayer every being coated on the substrate,
The nontransparent ink layer is coated with the surrounding on the substrate and being located at the multiple clear ink layer；
A part of the substrate corresponding with the nontransparent ink layer and the nontransparent ink layer limit described jointly
Opaque portion, another part and the multiple clear ink layer of the substrate corresponding with the multiple clear ink layer are common
Limit the multiple transmittance section.
5. the cover board for optical finger print identification as claimed in claim 4, which is characterized in that the clear ink layer is infrared
Line ink layer.
6. the cover board for optical finger print identification as claimed in claim 4, which is characterized in that the thickness of the clear ink layer
Less than 20 μm.
7. the cover board for optical finger print identification as claimed in claim 4, which is characterized in that the clear ink layer is in item
Shape, the angular range between the thickness direction and the substrate of the clear ink layer are 30-60 °.
8. the cover board for optical finger print identification as claimed in claim 4, which is characterized in that the clear ink layer is in item
Shape, the angle between the thickness direction and the substrate of the clear ink layer is 45 °.
9. such as the described in any item cover boards for optical finger print identification of claim 1-8, which is characterized in that the multiple light transmission
Portion is evenly spaced on.
10. the cover board for optical finger print identification as claimed in claim 9, which is characterized in that two adjacent light transmissions
The distance between portion range is 20-30 μm.
11. the cover board for optical finger print identification as described in claim 1, which is characterized in that the size of the transmittance section is
30μm。
12. as described in claim 1 for optical finger print identification cover board, which is characterized in that the multiple transmittance section it is total
The proportional region of area and the area of the fingerprint identification area is 25%-30%.
13. the cover board for optical finger print identification as described in claim 1, which is characterized in that the ruler of the fingerprint identification area
Very little is 6mm*4mm.
14. a kind of input module characterized by comprising
Such as the described in any item cover boards identified for optical finger print of claim 1-13；And
Optical finger print mould group below the fingerprint identification area is set, and the optical finger print mould group is used for fingerprint recognition.
15. a kind of electronic device, which is characterized in that described in any item for optical finger print identification including such as claim 1-13
Cover board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610888766.7A CN106503635B (en) | 2016-10-11 | 2016-10-11 | Cover board, input module and electronic device for optical finger print identification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610888766.7A CN106503635B (en) | 2016-10-11 | 2016-10-11 | Cover board, input module and electronic device for optical finger print identification |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106503635A CN106503635A (en) | 2017-03-15 |
| CN106503635B true CN106503635B (en) | 2019-06-28 |
Family
ID=58294777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610888766.7A Active CN106503635B (en) | 2016-10-11 | 2016-10-11 | Cover board, input module and electronic device for optical finger print identification |
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| CN108681687B (en) * | 2018-03-26 | 2022-01-07 | Oppo广东移动通信有限公司 | Cover plate and manufacturing method thereof, fingerprint identification module and electronic device |
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| CN108596080B (en) * | 2018-04-20 | 2021-05-14 | Oppo广东移动通信有限公司 | Fingerprint identification assembly, display device and electronic device |
| CN108615003B (en) * | 2018-04-20 | 2019-06-11 | Oppo广东移动通信有限公司 | Fingerprint recognition component, display device and electronic device |
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