CN113625895A - Electronic device, pattern correction method and shielding device - Google Patents
Electronic device, pattern correction method and shielding device Download PDFInfo
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- CN113625895A CN113625895A CN202110754619.1A CN202110754619A CN113625895A CN 113625895 A CN113625895 A CN 113625895A CN 202110754619 A CN202110754619 A CN 202110754619A CN 113625895 A CN113625895 A CN 113625895A
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
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Abstract
The embodiment of the application provides electronic equipment, a pattern correction method and a shielding device. The electronic device includes: the fingerprint identification module is arranged below the display screen; the display screen is used for showing the correction pattern, and the fingerprint identification module is used for gathering the correction pattern.
Description
Technical Field
The present application relates to the field of pattern testing technologies, and in particular, to an electronic device, a pattern correction method, and a shielding apparatus.
Background
With the progress of science and technology, electronic devices are more and more widely applied. Set up camera module and fingerprint identification module among the electronic equipment usually, through the camera module, electronic equipment can shoot the image, shoots video etc. through the fingerprint identification module, the user can unblock electronic equipment. But when carrying out the distortion test to the fingerprint identification module, confirm the difference between the pattern that the fingerprint identification module was gathered and the original pattern promptly, the imaging distortion correction parameter of fingerprint identification module is difficult to confirm usually.
Content of application
The embodiment of the application provides electronic equipment, a pattern correction method and a shielding device, and aims to solve the problem that imaging distortion correction parameters of a fingerprint identification module are difficult to determine in the related art.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides an electronic device, where the electronic device includes: the fingerprint identification module is arranged below the display screen;
the display screen is used for displaying correction patterns, and the fingerprint identification module is used for collecting the correction patterns.
Optionally, the correction pattern satisfies one or a combination of several of the following conditions:
the correction pattern is a pattern with a spacing pattern;
the correction pattern comprises at least one of a checkerboard pattern, a stripe pattern and a circular ring pattern;
the colors of the correction pattern include at least two.
Optionally, the fingerprint identification module is further configured to acquire the correction pattern to obtain an imaging pattern, where the imaging pattern and the correction pattern are used to determine an imaging distortion correction parameter of the fingerprint identification module.
Optionally, the display screen has a fingerprint acquisition area for displaying the correction pattern.
In a second aspect, an embodiment of the present application provides a pattern correction method, including:
controlling a display screen of the electronic equipment to display the correction pattern;
collecting the correction pattern through a fingerprint identification module of the electronic equipment to obtain an imaging pattern;
the imaging pattern and the correction pattern are used for determining an imaging distortion correction parameter of the fingerprint identification module.
Optionally, the display screen has a fingerprint collection area, gather through electronic equipment's fingerprint identification module the correction pattern includes:
place at the shielding piece when fingerprint collection is regional, through electronic equipment's fingerprint identification module gathers the correction pattern.
Optionally, the shield comprises a shield body;
the shielding main body is provided with a shielding surface, a boss is arranged on the shielding surface, and the boss surrounds the periphery of the shielding surface.
In a third aspect, an embodiment of the present application provides a shielding apparatus, including: the shielding body and the correction pattern layer are arranged on the shielding body;
the correction pattern layer is provided with a correction pattern, the correction pattern is used for collecting the correction pattern by a fingerprint identification module of the electronic equipment when the shielding device is positioned in a fingerprint collecting area of the electronic equipment, and the correction pattern is a checkerboard pattern.
Optionally, the thickness of the correction pattern layer is any value within a preset thickness range, and the preset thickness range is 0.1 micrometer to 1000 micrometers.
Optionally, the material of the correction pattern layer includes at least one of rubber, a film, polyvinyl chloride, glass, and metal.
In this application embodiment, because the display screen can show the correction pattern, the fingerprint identification module can gather the correction pattern, consequently, when carrying out the distortion test to the fingerprint identification module, directly make the display screen just show the correction pattern for the fingerprint identification module is gathered the correction pattern and is comparatively simple and convenient, thereby can comparatively portably confirm the imaging distortion correction parameter of fingerprint identification module.
Drawings
Fig. 1 is a schematic diagram of an electronic device according to an embodiment of the present disclosure;
FIG. 2 is a flow chart of a pattern correction method according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a blocking element disposed in a fingerprint module identification area of a display screen according to an embodiment of the present disclosure;
FIG. 4 is a schematic view of a shielding apparatus according to an embodiment of the present application;
fig. 5 shows a schematic view of a shielding device placed in a fingerprint module identification area of a display screen according to an embodiment of the present application.
Reference numerals:
10: a display screen; 11: a fingerprint collection area; 20: a fingerprint identification module; 21: a base; 22: a lens; 23: an infrared filter; 24: a sensor; 25: a circuit board; 30: shielding the main body; 31: a boss; 40: shielding the body; 41: and correcting the pattern layer.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Referring to fig. 1, a schematic diagram of an electronic device provided in an embodiment of the present application is shown, where the electronic device includes: display screen 10 and the fingerprint identification module 20 of setting in the display screen 10 below.
The display screen 10 is used for displaying the correction pattern, and the fingerprint identification module 20 is used for collecting the correction pattern.
In addition, in the embodiment of the present application, when the display screen 10 displays the correction pattern, the display screen 10 may display the correction pattern when the screen brightness is high, may also display the correction pattern when the screen brightness is low, and of course, may also display the correction pattern when the screen brightness is normal. The embodiments of the present application are not limited herein. The screen brightness can be determined according to the preset brightness range, and when the screen brightness is larger than the maximum value in the preset brightness range, the current screen brightness is high. And when the screen brightness is within the preset brightness range, indicating that the current screen brightness is normal. And when the screen brightness is smaller than the minimum value in the preset brightness range, the current screen brightness is smaller. The preset brightness range may be set according to actual needs, and the embodiment of the present application is not limited herein. In addition, the display screen 10 may display the correction pattern in the entire display area, and of course, the correction pattern may also be displayed in a set area, which is not limited herein in this embodiment of the application.
In addition, as shown in fig. 1, the fingerprint identification module 20 includes a base 21, a lens 22, an infrared filter 23, a sensor 24, and a circuit board 25. The lens 22, the infrared filter 23, the sensor 24, and the circuit board 25 are sequentially disposed in the chassis 21 along the extending direction of the chassis 21, and the sensor 24 is disposed on the circuit board 25. Wherein the lens 22 is typically a convex lens. When light is incident into the fingerprint recognition module 20, the light passes through the lens 22, and the pattern can be imaged. Then, the light passes through the infrared filter 23, the light passing through the infrared filter 23 can enter the sensor 24, and the sensor 24 can acquire the image after imaging. The circuit board 25 may be a flexible circuit board 25, and the flexible circuit board 25 may be connected to a processor in the electronic device, and after the sensor 24 acquires the imaging pattern, the sensor 24 may transmit the imaging pattern to the processor through the flexible circuit board 25.
In addition, in this embodiment, the fingerprint identification module 20 collects the correction pattern refers to the sensor in the fingerprint identification module 20 collecting the correction pattern.
In this application embodiment, because the display screen 10 can show the correction pattern, the fingerprint identification module 20 can gather the correction pattern, consequently, when carrying out the distortion test to fingerprint identification module 20, directly make display screen 10 just show the correction pattern for fingerprint identification module 20 gathers the correction pattern comparatively portably, thereby can comparatively portably confirm the imaging distortion correction parameter of fingerprint identification module.
In addition, in this embodiment of the application, the electronic device may further include a housing, and in this case, the display screen 10 may be mounted on the housing, and the fingerprint identification module 20 may be mounted in the housing. In this case, the housing can protect the fingerprint identification module 20.
It should be noted that the imaging distortion correction parameter is used to correct the imaging pattern collected by the fingerprint identification module 20, so that the imaging pattern is close to the correction pattern, or the imaging pattern is the same as the correction pattern. The corrected pattern is equivalent to the initial pattern, the imaged pattern is equivalent to the distorted pattern, the deviation between the distorted pattern and the initial pattern can be determined through comparison, the deviation can be corrected, and the distortion is reduced, so that the imaged pattern is the same as or similar to the corrected pattern.
In addition, in the present embodiment, the display panel 10 generally includes three pixel circuits of red, blue and green, wherein the three colors of red, blue and green can be referred to as three primary colors, and different colors can be formed by the three colors of red, blue, green. By providing different voltages to the three pixel circuits of red, blue and green, the three pixel circuits of red, blue and green can generate different colors, so that the display panel 10 can display different patterns. Therefore, in the embodiment of the present application, the voltage of the three pixel circuits of red, blue and green in the display screen 10 is adjusted, so that the fingerprint acquisition area 11 of the display screen 10 can display the correction pattern.
In addition, in the embodiment of the present application, the number of the lenses 22 may be one, two, or other numbers, which is not limited herein. Wherein, when the quantity of lens 22 is one, the formation of image distortion of fingerprint identification module 20 is great, and at this moment, in this application embodiment, show through display screen 10 and rectify the pattern, the pattern is rectified in the collection of fingerprint identification module 20, can avoid using other devices to make fingerprint identification module 20 gather and rectify the pattern to make the formation of image distortion parameter of confirming fingerprint identification module 20 comparatively simple and convenient. That is in this application embodiment, show through display screen 10 and correct the pattern, gather through fingerprint identification module 20 and correct the pattern, this kind of mode can be used in the great camera lens of formation of image distortion, is not restricted to and uses when doing the distortion test to fingerprint identification module 20, to the great camera lens of other formation of image distortions, this kind of mode of this application embodiment all can use.
It should be noted that, in the embodiment of the present application, the fingerprint identification module 20 may be a wafer level Camera module, i.e. a CCC module (Camera Cube), and the wafer level Camera module generally has a lens, so that the imaging distortion is large. Certainly, the fingerprint identification module 20 may also be another camera module with large distortion, and the embodiment of the present application is not limited herein.
In addition, in this embodiment of the application, the fingerprint identification module 20 is also used for collecting the correction pattern to obtain the imaging pattern, and the imaging pattern and the correction pattern are used for determining the imaging distortion correction parameter of the fingerprint identification module.
When the display screen 10 shows the correction pattern, and when the display screen 10 sent light, light alright in order to pass the correction pattern for the correction pattern can form images through the lens in the fingerprint identification module 20, and the sensor in the fingerprint identification module 20 alright in order to gather the imaging pattern, makes the fingerprint identification module 20 can obtain the imaging pattern.
In addition, when determining the imaging distortion correction parameters of the fingerprint identification module 20 through the imaging pattern and the correction pattern, the correction pattern and the imaging pattern may be acquired first, the deviation between the imaging pattern and the correction pattern may be determined, and the imaging distortion correction parameters may be determined based on the deviation.
For example, when the correction pattern is a checkerboard pattern, the correction positions may be obtained by marking the four corners of each grid in the correction pattern, respectively. The four corners of each grid in the imaging pattern are marked to obtain the imaging position. The amount of distortion can then be determined by an inverse distortion function, which is given by:
F(r)＝k0+k1r2+k2r4+.....
in the above equation, r represents the distance between each mark position and the center point of the imaging pattern.
By the above formula, k can be determined0，k1And k2. The three parameters are determined, so that the anti-distortion function can be determined, and then when the fingerprint identification module 20 collects fingerprints, the fingerprint identification module can pass through the anti-distortion functionThe distortion function corrects the fingerprint that fingerprint identification module 20 gathered.
In addition, in the embodiment of the present application, the display screen 10 may have a fingerprint collection area 11, and the fingerprint collection area 11 is used for displaying the correction pattern.
Generally, the display screen 10 has a fingerprint collection area 11, and the fingerprint collection area 11 is dedicated to collecting fingerprints, that is, a user can place a finger in the fingerprint collection area 11, and the fingerprint collection area 11 can collect fingerprints. In the embodiment of the present application, the fingerprint acquisition area 11 may display a correction pattern. When fingerprint collection region 11 shows the correction pattern, fingerprint identification module 20 alright with gathering the correction pattern for fingerprint identification module 20 gathers the correction pattern comparatively portably, thereby can comparatively portably confirm the imaging distortion correction parameter of fingerprint identification module.
It should be noted that, when the display screen 10 includes the fingerprint collection area 11, at this time, the fingerprint identification module 20 may face the fingerprint collection area 11.
In addition, usually when carrying out the distortion test to fingerprint identification module 20, test fingerprint identification module 20's formation of image distortion promptly, later just revise this formation of image distortion for the formation of image pattern that fingerprint identification module 20 gathered is close or the same with the correction pattern, improves fingerprint identification module 20's fingerprint identification rate. That is, in this application embodiment, when carrying out the distortion test to fingerprint identification module 20, can be with making the fingerprint collection area 11 of display screen 10 show the correction pattern, and at this moment, fingerprint identification module 20 gathers the fingerprint, the imaging pattern of the correction pattern that the display area that fingerprint identification module 20 gathered shows promptly. After testing fingerprint identification module 20 distortion, the correction pattern still can be shown to the regional 11 of fingerprint collection of display screen 10 when fingerprint identification module 20 gathers the fingerprint, certainly, also can not show the correction pattern, and to this, this application embodiment does not limit here.
In addition, in the embodiment of the present application, the correction pattern satisfies one or a combination of several of the following conditions: the correction pattern is a pattern having a space pattern; the correction pattern comprises at least one of a checkerboard pattern, a stripe pattern and a circular ring pattern; the colors of the correction pattern include at least two.
When the calibration pattern includes at least one of a checkerboard pattern, a stripe pattern, and a circular ring pattern, the checkerboard pattern, the stripe pattern, and the circular ring pattern may include two colors having a certain contrast, for example, blue white, blue red, and the like. Preferably, the checkerboard pattern, the stripe pattern, and the circular ring pattern may include black and white. That is, when the correction pattern is a checkerboard pattern, the checkerboard pattern is a grid pattern with alternating black and white. When the correction pattern is a stripe pattern, the stripe pattern may include a plurality of stripes, where the stripes are black stripes and two adjacent stripes are white stripes. When the calibration pattern is a circular ring pattern, at this time, the circular ring pattern may include N circular rings, the N circular rings are sequentially arranged along the center of the fingerprint acquisition area 11 toward the direction of the fingerprint acquisition area 11, and the nth circular ring includes an N-1 th circular ring, where N is a positive integer greater than 1. Each ring is black, and white is arranged between every two adjacent rings.
It should be noted that the correction patterns in the present application are only described as examples of the above-mentioned several types, and the correction patterns may be other types of interval patterns, for example, the correction patterns may be a plurality of triangular interval patterns, or a plurality of trapezoidal interval patterns.
In addition, the correction pattern may further include at least two colors, for example, the correction pattern may include two colors of black and white, may also include two colors of blue and white, and may also include three colors of black, white and red, and the specific color of the correction pattern is not limited herein.
For example, when the correction pattern is a checkerboard pattern, the checkerboard may be a black-and-white checkerboard, and the correction pattern is a combination of the checkerboard pattern and black-and-white color.
It should be further noted that, in the embodiments of the present application, the electronic device includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.
In this application embodiment, because display screen 10 has fingerprint collection area 11, fingerprint identification module 20 is towards fingerprint collection area 11, consequently, fingerprint identification module 20 can gather the image that fingerprint collection area 11 shows. Because when carrying out the imaging distortion test to fingerprint identification module 20, the correction pattern can be shown to fingerprint collection region 11, consequently, the correction pattern can form images through lens 22 in fingerprint identification module 20, and the imaging pattern after the formation of image can be gathered by sensor 24 in fingerprint identification module 20 for fingerprint identification module 20 can gather the imaging pattern after the formation of image of correction pattern. After the imaging pattern and the correction pattern are determined, the deviation between the imaging pattern and the correction pattern can be determined, so that the distortion of the lens 22 of the fingerprint identification module 20 during imaging can be determined, and the imaging distortion correction parameter of the fingerprint identification module 20 can be determined. That is, in this embodiment of the application, the correction pattern is displayed through the fingerprint collection area 11 of the display screen 10, so that the correction pattern can be imaged through the lens 22 in the fingerprint identification module 20, so that the fingerprint identification module 20 can collect the imaging pattern, and then the imaging distortion correction parameter can be determined according to the imaging pattern and the correction pattern, so that the imaging pattern can be obtained more conveniently, and further the imaging distortion correction parameter of the fingerprint identification module 20 can be determined more conveniently.
Referring to fig. 2, a flowchart of a pattern correction method provided in an embodiment of the present application is shown, and as shown in fig. 2, the method includes:
step 201: and controlling a display screen of the electronic equipment to display the correction pattern.
Since the display panel usually includes three pixel circuits of red, blue and green, wherein the three colors of red, blue and green can be called as three primary colors, different colors can be formed by the three colors of red, blue and green. By providing different voltages to the three pixel circuits of red, blue and green, the three pixel circuits of red, blue and green can generate different colors, so that the display screen can display different patterns. Therefore, in the embodiment of the present application, the display panel can display the correction pattern by controlling the voltages of the three pixel circuits of red, blue and green in the display panel.
In addition, in the embodiment of the application, the electronic device comprises a processor, and the processor is electrically connected with the power supply circuit of the display screen, so that the processor can control the power supply circuit of the display screen, so that the power supply circuit provides the target voltage to the display screen, and the display screen displays the correction pattern.
Step 202: the fingerprint identification module of control electronic equipment gathers the correction pattern to obtain the formation of image pattern. Wherein, the imaging pattern and the correction pattern are used for confirming the imaging distortion correction parameter of the fingerprint identification module.
When the display screen of electronic equipment shows the correction pattern, alright gather the correction pattern with control fingerprint identification module, wherein, the correction pattern can form images through the lens in the fingerprint identification module, imaging pattern after the formation of image alright acquire by the sensor in the fingerprint identification module for the fingerprint identification module obtains the imaging pattern. The fingerprint identification module can obtain the imaging pattern after the correction pattern imaging promptly.
In addition, in this application embodiment, the display screen has the fingerprint collection region, and the fingerprint identification module through electronic equipment gathers the correction pattern, includes: when the shielding piece is placed in the fingerprint collection area, the fingerprint identification module of the electronic equipment collects and corrects patterns.
Generally, when imaging a lens in a fingerprint recognition module, light is required to pass through the lens. And after the display screen sent light, light need be reflected in can getting into the fingerprint identification module to pass the lens in the fingerprint identification module and carry out the formation of image, consequently, after the display screen shows the correction pattern, when needing to rectify the pattern formation of image, as shown in fig. 3, need place the shielding piece in the fingerprint collection region, make the fingerprint collection region sheltered from by the shielding piece. Light that the display screen sent afterwards just can be reflected by the shielding piece, and the light of reflection passes the correction pattern, later passes the lens of fingerprint identification module for the lens formation of image of correction pattern through the fingerprint identification module. After the imaging of the correction pattern, the sensor can be controlled to acquire the imaging pattern after the imaging of the correction pattern.
After the imaging pattern and the correction pattern are determined, the imaging distortion correction parameter of the fingerprint identification module can be determined, so that the imaging of the fingerprint identification module can be corrected, and specific reference can be made to the above embodiment, which is not repeated herein.
In this application embodiment, through the regional correction pattern that shows of fingerprint collection on control electronic equipment's the display screen, when the shielding piece was placed in fingerprint collection region, control electronic equipment's fingerprint identification module was gathered and is corrected the imaging pattern after the pattern formation. The imaging pattern and the correction pattern are used for determining the imaging distortion correction parameter of the fingerprint identification module, so that the fingerprint identification module can acquire the imaging pattern conveniently, and the imaging distortion correction parameter of the fingerprint identification module is convenient.
Additionally, in some embodiments, as shown in FIG. 3, the shield can include a shield body 30. The shielding body 30 has a shielding surface, a boss 31 is disposed on the shielding surface, and the boss 31 surrounds the periphery of the shielding surface.
Because shelter from main part 30 and have the face of sheltering from, shelter from to be provided with boss 31 on the face, boss 31 encircles the periphery of sheltering from the face, consequently, when placing the shielding piece in fingerprint collection area 11, shelter from the face towards fingerprint collection area 11, and boss 31 and the regional 11 contact of fingerprint collection to make and shelter from and have the clearance between face and the fingerprint collection area 11. The light that sends at display screen 10 alright shine on the shielding face, get into display screen 10 after the shielding face reflection, and light can pass the correction pattern that the fingerprint collection region 11 of display screen 10 shows for the correction pattern can be imaged through lens 22 in fingerprint identification module 20. In addition, because boss 31 encircles the central line of shielding face, consequently, when placing the shielding piece in fingerprint collection area 11, boss 31 alright in order to surround fingerprint collection area 11, when display screen 10 sent light, boss 31 just is equivalent to and plays the effect that is in the light of being in the shade, avoids light in the environment to get into in the space that boss 31 encloses for only the light that display screen 10 sent in the space that boss 31 encloses, thereby avoids light in the environment to produce the influence to the formation of image of correcting the pattern.
It should be noted that, in the embodiment of the present application, the boss 31 may form a circle around the periphery of the shielding surface, that is, the boss 31 may form a complete circle around the center line of the shielding surface. Of course, the bosses 31 may also surround the periphery of the shielding surface at intervals, that is, the bosses 31 may also surround the center line of the shielding surface, and the bosses 31 are arranged at intervals, at this time, the number of the bosses 31 may be large, and a gap is provided between two adjacent bosses 31.
In addition, in the embodiment of the present application, the correction pattern may include at least one of a checkerboard pattern, a stripe pattern, and a circular ring pattern.
When the calibration pattern includes at least one of a checkerboard pattern, a stripe pattern, and a circular ring pattern, the checkerboard pattern, the stripe pattern, and the circular ring pattern may include two colors having a certain contrast, for example, blue white, blue red, and the like. Preferably, the checkerboard pattern, the stripe pattern, and the circular ring pattern may include black and white. That is, when the correction pattern is a checkerboard pattern, the checkerboard pattern is a grid pattern with alternating black and white. When the correction pattern is a stripe pattern, the stripe pattern may include a plurality of stripes, where the stripes are black stripes and two adjacent stripes are white stripes. When the calibration pattern is a circular ring pattern, at this time, the circular ring pattern may include N circular rings, the N circular rings are sequentially arranged along the center of the fingerprint acquisition area 11 toward the direction of the fingerprint acquisition area 11, and the nth circular ring includes an N-1 th circular ring, where N is a positive integer greater than 1. Each ring is black, and white is arranged between every two adjacent rings.
For example, when the calibration pattern is a checkerboard pattern, and the checkerboard pattern is a black-and-white grid pattern, at this time, when the display screen 10 emits light, the light can pass through the checkerboard pattern, the checkerboard pattern can be imaged by the lens 22 of the fingerprint identification module 20, and the sensor 24 of the fingerprint identification module 20 can acquire the imaged pattern.
Additionally, in some embodiments, the material of the boss 31 includes rubber.
When placing the shielding piece in fingerprint collection area 11 of display screen 10, boss 31 can contact with display screen 10, and boss 31 may cause wearing and tearing to display screen 10, and in order to avoid this kind of problem to appear, in this application embodiment, the material of boss 31 includes rubber to when boss 31 and display screen 10 contact, can reduce the wearing and tearing of boss 31 to display screen 10, improve the life of display screen 10. In addition, because sheltering from main part 30 and having weight, consequently, when boss 31 and display screen 10 contact, this moment, the boss 31 of rubber material can simulate user's finger and to the pressing of display screen 10 for the correction pattern that fingerprint identification module 20 gathered is the formation of image after the pattern formation is more accurate.
Of course, the material of the shielding main body 30 may also include rubber, that is, the material of the shielding main body 30 is the same as the material of the boss 31, and in this case, the abrasion of the shielding main body 30 to the display screen 10 is also small.
In addition, in the embodiment of the present application, the shielding main body 30 may be black, and may also be other colors, such as blue, for example, and the embodiment of the present application is not limited herein. When sheltering from main part 30 when black, the light that the display screen sent can all be sheltered from main part 30, but the correction pattern that the display screen shows can be by the rete reflection in the display screen to make the display screen show that the lens that passes through in the fingerprint identification module that the correction pattern can be better images, make the imaging pattern effect of fingerprint identification module collection better.
For example, when the correction pattern is black check board, black sheltering from the body and can be all absorbed light to after the correction pattern that shows at the display screen transmits lens formation of image in the fingerprint identification module, the contrast is most obvious in the formation of image pattern that the sensor obtained. However, when the shielding main body is in other colors, that is, in non-black colors, after light emitted by the display screen irradiates the shielding main body, part of the light is reflected to the black position of the correction pattern, so that the color of the black grid in the black and white checkerboard after imaging is not too black, the imaging of the correction pattern in the black and white checkerboard is affected, and the black and white contrast in the imaging pattern acquired by the fingerprint identification module is reduced.
Of course, when the correction pattern is of other types, for example, a stripe pattern or a ring pattern, the color of the shielding main body may affect the imaging thereof, and will not be described herein again.
In addition, in this application embodiment, shelter from main part 30 and can be the rubber material, when sheltering from body 30 and be the rubber material, when will shelter from main part 30 and place on the display screen, shelter from main part 30 and less to the wearing and tearing of display screen 10 for the life of display screen 10 can prolong. In addition, the shielding body 30 made of rubber can also play a role in simulating pressing of a user, and is favorable for collecting and correcting patterns by the fingerprint identification module. In addition, when the shielding main body 30 is made of rubber, the shielding main body 30 made of rubber is less worn when contacting the display screen 10, and the service life of the shielding main body 30 can be prolonged. In addition, the main shielding body 30 made of rubber can also simulate the pressing state of pressing the display by the finger of the user, so that the effect of correcting the pattern acquired by the fingerprint identification module 20 is better.
In addition, the shielding main body 30 may have a square shape or a cylindrical shape, and of course, other shapes such as a prism shape may also be possible, and the shape of the shielding main body 30 is not limited herein.
Additionally, in some embodiments, the masking surface has a light absorbing layer thereon.
When the light absorbing layer is arranged on the shielding surface, after the shielding member is placed in the fingerprint collection area 11, the light emitted from the display screen 10 can be completely absorbed by the light absorbing layer, so that the imaging pattern of the correction pattern collected by the fingerprint identification module 20 is relatively clean.
It should be noted that the light absorbing layer may be a black film layer, and the black film layer may be printed on the shielding surface by printing, so that the shielding surface has the light absorbing layer, and of course, the black film layer may be adhered to the shielding surface by adhering. Of course, the embodiments of the present application are not limited thereto.
In this application embodiment, through the regional 11 display correction patterns of fingerprint collection on control electronic equipment's the display screen 10, when the shielding piece was placed in fingerprint collection region 11, control electronic equipment's fingerprint identification module 20 gathered the imaging pattern after the formation of correction pattern. The imaging pattern and the correction pattern are used for determining the imaging distortion correction parameter of the fingerprint identification module 20, so that the fingerprint identification module 20 can acquire the imaging pattern conveniently, and further the imaging distortion correction parameter of the fingerprint identification module 20 is determined easily.
Referring to fig. 4, a schematic view of a shielding apparatus provided in an embodiment of the present application is shown, and as shown in fig. 4, the shielding apparatus includes: a shielding body 40 and a correction pattern layer 41 disposed on the shielding body 40.
The correction pattern layer 41 has a correction pattern, and the correction pattern is used for collecting the correction pattern when the shielding device is located in the fingerprint collection area 11 of the electronic device, and the fingerprint identification module 20 of the electronic device collects the correction pattern, wherein the correction pattern is a checkerboard pattern.
In the embodiment of the application, because shelter from the device including sheltering from body 40 and the correction pattern layer 41 of setting on sheltering from body 40, therefore, as shown in fig. 5, when sheltering from the fingerprint collection area 11 of display screen 10 through sheltering from the device, can be with the fingerprint collection area 11 laminating of correction pattern layer 41 and display screen 10, when display screen 10 sent light, light alright shine at correction pattern layer 41, make the correction pattern on the correction pattern layer 41 alright form images through lens 22 in the fingerprint identification module 20, sensor 24 in the fingerprint identification module 20 alright gather the imaging pattern after the correction pattern formation of image, thereby make the acquisition imaging pattern that the fingerprint identification module 20 can be comparatively simple and convenient, and then make the imaging distortion correction parameter of confirming the fingerprint identification module 20 comparatively simple and convenient.
It should be noted that, when the correction pattern is a checkerboard pattern, the checkerboard pattern may include two colors with certain contrast, such as blue white, blue red, etc. Preferably, the checkerboard pattern, the stripe pattern, and the circular ring pattern may include black and white. That is, when the correction pattern is a checkerboard pattern, the checkerboard pattern is a grid pattern with alternating black and white.
In addition, in this application embodiment, fingerprint identification module 20 can gather the correction pattern when the luminance of display screen 10 is bright, and display screen 10 shows the correction pattern when screen luminance is bright promptly, and the fingerprint identification module gathers the correction pattern. The fingerprint identification module can also gather the correction pattern when the luminance of display screen 10 is normal, to this, and this application embodiment does not limit here.
In addition, in some embodiments, the thickness of the calibration pattern layer 41 is any value within a predetermined thickness range, and the predetermined thickness range is 0.1 micrometers to 1000 micrometers.
When the thickness of rectifying the pattern when predetermineeing thickness range, at this moment, the thickness of rectifying the pattern is less, can be guaranteeing to rectify the condition that the pattern does not influence fingerprint identification module 20 on the pattern layer 41 and gather the pattern for the thickness of rectifying the pattern layer 41 is as little as possible, thereby can reduce the weight that shelters from the device, reduces the production degree of difficulty that shelters from the device.
For example, the thickness of the correction pattern layer 41 may be 10 micrometers, may be 11 micrometers, may be 8 micrometers, may be 5 micrometers, may be 15 micrometers, may also be 25 micrometers, and may also be other values, which is not limited herein.
It should be noted that, in the embodiment of the present application, the predetermined thickness may preferably be in a range of 5 micrometers to 25 micrometers.
In addition, in some embodiments, the material of the shielding body 40 includes rubber.
When will shelter from body 40 and place the fingerprint collection area 11 at display screen 10, shelter from the contact of body 40 and the fingerprint collection area 11 of display screen 10, shelter from body 40 and probably cause wearing and tearing to display screen 10, influence the life of display screen 10. In order to avoid the problem, in the embodiment of the present application, the material of the shielding body 40 includes rubber, and at this time, when the shielding body 40 contacts with the fingerprint collection area 11 of the display screen 10, the shielding body 40 of the rubber can avoid damaging the fingerprint collection area 11 of the display screen 10, so that the service life of the display screen 10 can be prolonged.
In addition, when the shielding body 40 is made of rubber, the shielding body 40 made of rubber is less worn when contacting the display screen 10, and the service life of the shielding body 40 can be prolonged. In addition, the sheltering body 40 made of rubber can also simulate the pressing state of pressing the display by the finger of the user, so that the effect of correcting the pattern collected by the fingerprint identification module 20 is better.
It should be noted that, in the embodiment of the present application, the shielding body 40 may be black, may also be blue, and of course, may also be other colors, which is not limited herein.
When sheltering from body 40 and being the black, when will shelter from the device and place the fingerprint collection region 11 at display screen 10, the light that display screen 10 sent can be absorbed by sheltering from body 40, can be so that the correction pattern layer 41 that shelters from on the body 40 can be better form an image on the lens 22 of fingerprint identification module 20 for the imaging pattern of the correction pattern that the sensor 24 of fingerprint identification module 20 gathered is better.
In addition, in the embodiment of the present application, the material of the correction pattern layer 41 may include at least one of rubber, a film, polyvinyl chloride, glass, and metal.
When the material of the correction pattern layer 41 includes at least one of rubber, a film, polyvinyl chloride, glass, and metal, at this time, the correction pattern layer 41 can be conveniently disposed on the shielding body 40, and the correction pattern on the correction pattern layer 41 is conveniently disposed.
In addition, in the embodiment of the present application, the material of the calibration pattern layer 41 may also be other materials, and the material of the calibration pattern layer is not specifically limited herein.
In the embodiment of the present application, the correction pattern layer 40 may be formed by spraying, that is, spraying the correction pattern on the surface of the shielding body 40, and of course, the correction pattern layer may be adhered to the surface of the shielding body 40 by adhering. Of course, a correction pattern layer may be plated on the surface of the shielding body 40 in a plating manner, which is not limited herein.
In the embodiment of the application, because shelter from the device including sheltering from body 40 and the correction pattern layer 41 of setting on sheltering from body 40, consequently, when sheltering from the fingerprint collection area 11 of display screen 10 through sheltering from the device, can be with the fingerprint collection area 11 laminating of correction pattern layer 41 and display screen 10, when display screen 10 sent light, light alright in order to shine at correction pattern layer 41, make the correction pattern on the correction pattern layer 41 alright through the lens 22 formation of image in the fingerprint identification module 20, sensor 24 in the fingerprint identification module 20 alright gather the formation of image after the correction pattern formation of image, thereby make the acquisition formation of image pattern that the fingerprint identification module 20 can be comparatively simple and convenient, and then make the formation of image distortion correction parameter of confirming the fingerprint identification module 20 comparatively simple and convenient.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
While alternative embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including alternative embodiments and all such alterations and modifications as fall within the true scope of the embodiments of the application.
Finally, it should also be noted that, in this document, relational terms such as first and second, and the like may be used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or terminal apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or terminal apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of additional like elements in the article or terminal device comprising the element.
The technical solutions provided in the present application are described in detail above, and the principles and embodiments of the present application are described herein by using specific examples, and meanwhile, for a person of ordinary skill in the art, according to the principles and implementation manners of the present application, changes may be made in the specific embodiments and application ranges.
Claims (10)
1. An electronic device, characterized in that the electronic device comprises: the fingerprint identification module is arranged below the display screen;
the display screen is used for displaying correction patterns, and the fingerprint identification module is used for collecting the correction patterns.
2. The electronic device of claim 1, wherein the correction pattern satisfies one or a combination of the following conditions:
the correction pattern is a pattern with a spacing pattern;
the correction pattern comprises at least one of a checkerboard pattern, a stripe pattern and a circular ring pattern;
the colors of the correction pattern include at least two.
3. The electronic device of claim 1, wherein the fingerprint identification module is further configured to acquire the correction pattern to obtain an imaging pattern, and the imaging pattern and the correction pattern are used to determine an imaging distortion correction parameter of the fingerprint identification module.
4. The electronic device of claim 1, wherein the display screen has a fingerprint capture area for displaying a calibration pattern.
5. A method of pattern correction, the method comprising:
controlling a display screen of the electronic equipment to display the correction pattern;
controlling a fingerprint identification module of the electronic equipment to collect the correction pattern so as to obtain an imaging pattern;
the imaging pattern and the correction pattern are used for determining an imaging distortion correction parameter of the fingerprint identification module.
6. The pattern correction method according to claim 5, wherein the display screen has a fingerprint collection area, and the collecting of the correction pattern by the fingerprint recognition module of the electronic device comprises:
place at the shielding piece when fingerprint collection is regional, through electronic equipment's fingerprint identification module gathers the correction pattern.
7. The pattern correction method according to claim 6, wherein the shade member includes a shade main body;
the shielding main body is provided with a shielding surface, a boss is arranged on the shielding surface, and the boss surrounds the periphery of the shielding surface.
8. A shielding device, comprising: the shielding body and the correction pattern layer are arranged on the shielding body;
the correction pattern layer is provided with a correction pattern, the correction pattern is used for collecting the correction pattern by a fingerprint identification module of the electronic equipment when the shielding device is positioned in a fingerprint collecting area of the electronic equipment, and the correction pattern is a checkerboard pattern.
9. The shielding apparatus according to claim 8, wherein the thickness of the correction pattern layer is any value in a predetermined thickness range, and the predetermined thickness range is 0.1-1000 μm.
10. A screen device according to any one of claims 8 to 9, wherein the material of the correction pattern layer comprises at least one of rubber, a film, polyvinyl chloride, glass and metal.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110754619.1A CN113625895A (en) | 2021-07-02 | 2021-07-02 | Electronic device, pattern correction method and shielding device |
| CN202122706785.2U CN218332542U (en) | 2021-07-02 | 2021-11-05 | Calibration device and calibration system |
| CN202111310438.6A CN114077357A (en) | 2021-07-02 | 2021-11-05 | Correction method, correction device, electronic device and readable storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110754619.1A CN113625895A (en) | 2021-07-02 | 2021-07-02 | Electronic device, pattern correction method and shielding device |
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| CN113625895A true CN113625895A (en) | 2021-11-09 |
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| CN202110754619.1A Pending CN113625895A (en) | 2021-07-02 | 2021-07-02 | Electronic device, pattern correction method and shielding device |
| CN202122706785.2U Active CN218332542U (en) | 2021-07-02 | 2021-11-05 | Calibration device and calibration system |
| CN202111310438.6A Pending CN114077357A (en) | 2021-07-02 | 2021-11-05 | Correction method, correction device, electronic device and readable storage medium |
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| CN202122706785.2U Active CN218332542U (en) | 2021-07-02 | 2021-11-05 | Calibration device and calibration system |
| CN202111310438.6A Pending CN114077357A (en) | 2021-07-02 | 2021-11-05 | Correction method, correction device, electronic device and readable storage medium |
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| KR100914211B1 (en) * | 2008-01-15 | 2009-08-26 | 주식회사 이미지넥스트 | Distorted image correction apparatus and method |
| JP5679767B2 (en) * | 2010-10-28 | 2015-03-04 | ラピスセミコンダクタ株式会社 | Fingerprint authentication apparatus and fingerprint authentication program |
| CN107358188B (en) * | 2015-01-13 | 2021-12-07 | 深圳市汇顶科技股份有限公司 | Fingerprint sensor and correction method thereof |
| KR20200050515A (en) * | 2018-11-01 | 2020-05-12 | 삼성디스플레이 주식회사 | Display apparatus and method for controlling the same |
| KR102247832B1 (en) * | 2018-11-20 | 2021-05-04 | 박만석 | Method for verifying personal identity of ID card |
| CN111325055B (en) * | 2018-12-14 | 2024-03-19 | 上海耕岩智能科技有限公司 | Fingerprint identification method and device, storage medium and terminal |
| TWI687869B (en) * | 2018-12-19 | 2020-03-11 | 大陸商北京集創北方科技股份有限公司 | Method for removing fingerprint sensing noise of glass cover plate, fingerprint recognition device for glass cover plate and information processing device |
| CN109685032A (en) * | 2018-12-29 | 2019-04-26 | 联想(北京)有限公司 | Image processing method, device, electronic equipment and storage medium |
| CN109934211B (en) * | 2019-03-11 | 2021-04-09 | Oppo广东移动通信有限公司 | Fingerprint calibration method and related device |
| US10970511B2 (en) * | 2019-06-26 | 2021-04-06 | Synaptics Incorporated | System and method for correcting distortions in a biometric image |
| KR20210025752A (en) * | 2019-08-27 | 2021-03-10 | 삼성디스플레이 주식회사 | Fingerprint sensing method, fingerprint sensor and display device including the same |
| CN112101194A (en) * | 2020-01-21 | 2020-12-18 | 神盾股份有限公司 | Electronic device and operation method thereof |
| CN111355863B (en) * | 2020-04-07 | 2022-07-22 | 北京达佳互联信息技术有限公司 | Image distortion correction method and device, electronic equipment and storage medium |
| CN111565309B (en) * | 2020-05-28 | 2022-08-19 | 京东方科技集团股份有限公司 | Display device and distortion parameter determination method, device and system thereof, and storage medium |
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| CN114077357A (en) | 2022-02-22 |
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Application publication date: 20211109 |