CN109726650B - Display screen, electronic equipment and fingerprint processing method - Google Patents
Display screen, electronic equipment and fingerprint processing method Download PDFInfo
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- CN109726650B CN109726650B CN201811543674.0A CN201811543674A CN109726650B CN 109726650 B CN109726650 B CN 109726650B CN 201811543674 A CN201811543674 A CN 201811543674A CN 109726650 B CN109726650 B CN 109726650B
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Abstract
The application provides display screen, electronic equipment and fingerprint image processing method, the display screen is including apron, display module assembly and the bottom plate of laminating in proper order, the apron is equipped with first conduction portion, first conduction portion is used for conducting fingerprint signal and warp display module assembly transmits extremely the bottom plate, the bottom plate be equipped with first conduction portion just right second conduction portion, second conduction portion is used for conducting fingerprint signal and goes out to fingerprint sensing module, the conduction medium of second conduction portion with the conduction medium of first conduction portion is the same. The conduction medium of second conduction portion with the conduction medium of first conduction portion is the same for the direction of second conduction portion outgoing fingerprint detection signal is parallel with the direction of first conduction portion incident fingerprint detection signal, and then improves fingerprint detection signal's collection efficiency, improves the fingerprint identification rate.
Description
Technical Field
The application relates to the technical field of fingerprint identification, in particular to a display screen, electronic equipment and a fingerprint processing method.
Background
The external structure of present cell-phone can set up the fingerprint collection region usually, utilizes the regional user's fingerprint of gathering of fingerprint to realize controlling the partial function of cell-phone. However, because the current fingerprint collection is influenced by the structure of the display screen, the fingerprint signal collection efficiency is low, and the fingerprint identification rate is not high.
Disclosure of Invention
The application provides a display screen, electronic equipment and a fingerprint processing method.
The application provides a display screen, wherein, the display screen is including the apron, display module assembly and the bottom plate of laminating in proper order, the apron includes first conduction portion, first conduction portion is used for conducting fingerprint signal and warp display module assembly transmits extremely the bottom plate, the bottom plate include with first conduction portion just right second conduction portion, second conduction portion is used for conducting fingerprint signal and goes out to fingerprint sensing module, the refracting index of second conduction portion with the refracting index of first conduction portion is the same.
The application provides an electronic equipment, wherein, electronic equipment includes foretell display screen, electronic equipment includes fingerprint sensing module, fingerprint sensing module is fixed in the bottom plate with second conduction portion is just to locating.
The application provides a fingerprint processing method, wherein, is applied to electronic equipment, electronic equipment includes display screen and fingerprint sensing module, the display screen includes apron and bottom plate, the apron includes first conduction portion, the bottom plate include with first conduction portion just right second conduction portion, the refracting index of second conduction portion with the refracting index of first conduction portion is the same, the fingerprint processing method includes:
when a fingerprint acquisition request is detected, determining a pressing area of a finger of a user;
transmitting a fingerprint detection signal;
through the peak reflection signal of user's fingerprint is gathered to fingerprint sensing module, forms the fingerprint image after handling, wherein, fingerprint detection signal conduction is to user's fingerprint crest region to the warp fingerprint crest regional reflection forms peak reflection signal, peak reflection signal pass through first conduction portion with behind the second conduction portion, with original incident angle outgoing extremely fingerprint sensing module.
The display screen, electronic equipment and fingerprint processing method that this application embodiment provided, through the apron includes first conduction portion, the bottom plate include with first conduction portion just right second conduction portion, the refracting index of second conduction portion with the refracting index of first conduction portion is the same for the direction of second conduction portion outgoing fingerprint detected signal with the direction of first conduction portion incident fingerprint detected signal is parallel, gathers the fingerprint detected signal from second conduction portion outgoing in the direction of fingerprint detected signal incident first conduction portion, makes the fingerprint collection direction more accurate, and then improves the collection efficiency of fingerprint detected signal, improves the fingerprint identification rate.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic cross-sectional view of a display screen provided by an embodiment of the present application;
FIG. 2 is a schematic top view of a display screen provided in an embodiment of the present application;
FIG. 3 is another schematic cross-sectional view of a display screen provided by an embodiment of the present application;
FIG. 4 is a schematic cross-sectional view of a display screen provided in accordance with another embodiment of the present application;
FIG. 5 is a schematic cross-sectional view of a display screen provided in accordance with another embodiment of the present application;
FIG. 6 is a schematic partial cross-sectional view of an electronic device provided by an embodiment of the application;
FIG. 7 is another schematic cross-sectional view of an electronic device provided by an embodiment of the application;
FIG. 8 is a schematic cross-sectional view of an electronic device provided by another embodiment of the present application;
FIG. 9 is a schematic cross-sectional view of an electronic device provided by another embodiment of the present application;
fig. 10 is a flowchart illustrating a fingerprint image processing method according to an embodiment of the present application.
Detailed Description
The technical solutions of 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.
The embodiment of the application provides a display screen, electronic equipment and a fingerprint processing method, wherein the display screen can be applied to electronic equipment such as a mobile phone, a tablet computer, a notebook computer and a media player, and can also be applied to financial terminal equipment such as an Automatic Teller Machine (ATM).
Referring to fig. 1 and fig. 2, the present application provides a display screen 100, where the display screen 100 includes a cover plate 10, a display module 20, and a bottom plate 30, which are attached in sequence. The cover plate 10 includes a first conductive portion 11, and the first conductive portion 11 is used for conducting a fingerprint signal and transmitting the fingerprint signal to the bottom plate 30 through the display module 20. The bottom plate 30 includes a second conductive portion 31 facing the first conductive portion 11. The second conductive part 31 is used for conducting a fingerprint signal and emitting the fingerprint signal to the fingerprint sensing module 40. The refractive index of the second conductive part 31 is the same as the refractive index of the first conductive part 11.
It is understood that the display screen 100 may be applied to an electronic device, and the electronic device may be a mobile phone, a tablet computer, or a notebook computer. The bottom plate 30 of display screen 100 deviates from display module 20 one side and sets up fingerprint sensing module 40, can utilize fingerprint sensing module 40 to gather the follow the fingerprint detection signal of second conduction portion 31 outgoing to discernment user fingerprint information. Through the apron 10 is equipped with first conduction portion 11, bottom plate 30 be equipped with first conduction portion 11 just right second conduction portion 31, the refracting index of second conduction portion 31 with the refracting index of first conduction portion 11 is the same for the direction of second conduction portion 31 outgoing fingerprint detection signal with the direction of first conduction portion 11 incident fingerprint detection signal parallels, gathers fingerprint detection signal in the direction of fingerprint detection signal incident first conduction portion, makes the fingerprint collection direction more accurate, and then improves the collection efficiency of fingerprint detection signal, improves the fingerprint identification rate.
In the present embodiment, the cover plate 10 is composed of a glass plate 12 and an ink layer 13 applied to the glass plate 12. The ink layer 13 is coated on the edge of the glass plate 12. The side of the glass plate 12 coated with the ink layer 13 faces the display module 20. The ink layer 13 forms a non-light-transmitting portion of the cover plate 10 in a region where the glass plate 12 is located. The area of the glass plate 12 not covered by the ink layer 13 constitutes a light-transmitting portion of the cover plate 10. The first conductive part 11 may be a part of the cover plate 10, or may be the entire cover plate 10. In an embodiment, the first conducting portion 11 is disposed on a light-transmitting portion of the cover plate 10, that is, the first conducting portion 11 is disposed on a portion of the glass plate 12 not covered by the ink layer 13. The first conductive part 11 may occupy the entire light-transmitting region of the cover 10, or may occupy a part of the light-transmitting region of the cover 10. Since the first conductive part 11 is made of glass with high light transmittance, the first conductive part 11 has good visible light transmittance. That is, when the fingerprint detection signal is a visible light signal, the first conduction portion 11 can effectively conduct the fingerprint detection signal to the display module 20, and the display module 20 conducts the fingerprint detection signal to the second conduction portion 31, and the second conduction portion 31 emits the fingerprint detection signal to the fingerprint sensing module 40 along the original incident direction, so as to collect the fingerprint detection signal. Can also integrate touch-control layer 121 in the glass plate 12 to use touch-control layer 121 feels the area a of pressing of user's fingerprint, and according to pressing area a position and size, confirms fingerprint detection area's position and size, with the convenience at fingerprint detection area collection fingerprint detection signal. This fingerprint detection area is the area that can gather fingerprint detection signal on the fingerprint sensing module 40. Of course, in other embodiments, it may also be that ultrasonic emission source transmits ultrasonic signal to user's fingerprint, first conduction portion 11 may be the ultra-dense medium that conducts ultrasonic, and fingerprint sensing module 40 may pass through ultrasonic signal identification user's fingerprint information, or utilizes infrared light source to transmit infrared light signal to user's fingerprint, first conduction portion 11 may be the light guide medium that conducts infrared light, and fingerprint sensing module 40 may pass through infrared light identification user's fingerprint information.
In the present embodiment, the display module 20 has a display area 21 and a non-display area 22 connected to the display area 21. The display area 21 is substantially aligned with the area of the glass plate 12 not covered by the ink layer 13. The non-display area 22 is substantially blocked by the ink layer 13. The display module 20 can emit visible light in the display area 21 to provide a display frame, and can also form a fingerprint detection signal for detecting a fingerprint of a user by using the visible light. Of course, visible light in the ambient light may also be used to form a fingerprint detection signal for detecting the fingerprint of the user. The display module 20 may form a lighting area b capable of emitting visible light in the display area 21 according to the pressing area a of the user fingerprint.
In a screen-off state, the display module 20 is turned on to surround a partial area on the peripheral side of the pressing area a, and an area facing the pressing area a is left in a turned-off state to form the lighting area b. In one embodiment, in the bright state, the display module 20 is turned off in a region facing the pressing region a, and the region surrounding the pressing region a is left in the lit state.
The lighting region b may surround the pressing region a to form a diaphragm that is offset from the pressing region a. The lighting area b is utilized to surround the periphery of the pressing area a, so that visible light irradiates to the fingerprint of the user from the edge of the pressing area a, the peak area of the fingerprint of the user can reflect light with a specific angle to the first conducting part 11 under the irradiation of the visible light, the trough area of the fingerprint of the user cannot reflect light with the specific angle to the first conducting part 11, and the peak area of the fingerprint of the user can be identified by collecting the light with the specific angle. The display module 20 may further form a screen extinguishing area c aligned with the pressing area a in the display area 21 according to the pressing area a of the fingerprint of the user, and the screen extinguishing area c may transmit the light ray of the peak specific angle emitted from the first conducting portion 11 and conduct the light ray of the peak specific angle to the second conducting portion 31. Of course, in other embodiments, if other devices besides the display module 20 are used as the fingerprint detection signal emission source, the display module 20 may also form the screen-off region c only in the corresponding pressing region a, so as to identify the fingerprint information of the user by using the specific angle light reflected by the fingerprint wave crest through the screen-off region c. Of course, in another embodiment, if the user fingerprint of the pressing area a is detected by a fingerprint detection signal such as an ultrasonic signal, an infrared signal, or an electromagnetic signal, the display module 20 may be in a bright screen state, or in a half bright screen state or half off screen state in the area of the display area 21 facing the pressing area a, and the display module 20 may transmit the peak detection signal emitted from the first transmission part 11 to the second transmission part 31.
In the present embodiment, the bottom plate 30 is substantially parallel to the cover plate 10. The bottom plate 30 is a glass plate member such that the refractive index of the second conductive part 31 is the same as the refractive index of the first conductive part 11. The second conductive part 31 may be a part of the base plate 30, or may be the entire base plate 30. The second conductive part 31 is located in the first conductive part 11 at the orthographic projection of the cover plate 10, so that the fingerprint detection signal transmitted by the first conductive part 11 can be conveniently emitted to the fingerprint sensing module 40 through the second conductive part 31. The bottom plate 30 may coincide with a portion of the light-transmitting area of the cover plate 10, that is, the second conductive part 31 occupies a portion of the display area 21 in the orthographic projection of the display module 20, so that the display screen 100 has a fingerprint detection signal conduction function only in an area opposite to the bottom plate 30, and fingerprint collection is realized only in an area opposite to the bottom plate 30 through the fingerprint sensing module 40.
The bottom plate 30 may also be completely overlapped with the light-transmitting area of the cover plate 10, that is, the second conduction part 31 occupies the whole display area 21 in the orthographic projection of the display module 20, so that the display screen 100 has a fingerprint detection signal conduction function in the whole area of the display area 21, and can collect a fingerprint detection signal in any position of the whole area of the display area 21 through the fingerprint sensing module 40. The refractive index of the second conduction part 31 is the same as that of the first conduction part 11, so that a fingerprint detection signal of a user fingerprint which is incident to the first conduction part 11 in a peak area in a specific angle A direction is conducted to the second conduction part 31 through the display screen module 20, the fingerprint detection signal is still emitted to the fingerprint sensing module 40 in the specific angle A direction, the fingerprint detection signal in the specific angle A direction is collected by the fingerprint sensing module 40, information of the peak area of the user fingerprint is identified, and further the fingerprint information of the user is identified.
In one embodiment, referring to fig. 3, the display module 20 includes a cathode layer 23, an organic electroluminescent layer 24, and an anode layer 25, which are sequentially attached, and the cathode layer 23 is attached to the cover plate 10. The base plate 30 is attached to the anode layer 25. The bottom plate 30 may serve as a substrate of the display module 20 to facilitate molding the anode layer 25 on the bottom plate 30. The organic electroluminescent layer 24 may form a signal conduction region in a region directly opposite to the second conduction part 31 and a partially lit light emitting region around the signal conduction region. The entire light-transmitting area of the cover plate 10 constitutes the first conductive part 11. The second conductive part 31 overlaps the first conductive part 11 in an orthogonal projection of the cover plate 10. When the user fingerprint abuts against the cover plate 10 facing away from the display module 20, the pressing area a of the user fingerprint can be determined through the touch layer 121. The organic electroluminescent layer 24 may form a screen-off region in a region directly opposite to the pressing region a according to the pressing region a. The screen extinguishing region may transmit a peak detection signal emitted from the first conductive portion 11. The blanking area c transmits a peak detection signal to the bottom plate 30. When the touch layer 121 detects the pressing area a, the organic electroluminescent layer 24 may form an annular lighting area b surrounding the periphery of the screen-off area c according to the pressing area a. The ring-shaped lighting area b can emit fingerprint detection light to the fingerprint of the user, the fingerprint detection light penetrates through the cover plate 10 and irradiates the fingerprint of the user, and when the peak area of the fingerprint of the user is detected, the peak fingerprint detection light with a specific incident angle is formed in the peak area of the fingerprint of the user. User's crest fingerprint detection light passes through first conduction portion 11, puts out screen area c and second conduction portion 31 conduction extremely in proper order fingerprint sensing module 40 finally realizes discerning user's fingerprint image. Of course, in other embodiments, the organic electroluminescent layer 24 may also form a plurality of bright spot areas surrounding at equal intervals on the periphery of the screen-off area c according to the pressing area a, and emit fingerprint detection light to the user fingerprint by using the plurality of bright spot areas arranged at equal intervals.
In another embodiment, referring to fig. 4, the display module 20 includes a substrate 25 attached to the anode layer 25 and facing away from the organic electroluminescent layer 24, and the bottom plate 30 is attached to a side of the substrate 25 facing away from the anode layer 25. The bottom plate 30 is separated from the substrate 25, so that the bottom plate 30 can be opposite to a part of the display area of the display module 20, and the manufacturing cost of the bottom plate 30 is reduced.
In another embodiment, referring to fig. 5, the display module 20 includes a liquid crystal module 50 and a backlight module 60, and the liquid crystal module 50 is attached to the cover plate 10. The backlight assembly 60 is attached to the liquid crystal assembly 50, and the backlight assembly 60 is provided with a hollow portion 61. The bottom plate 30 is attached to the backlight assembly 60, and the second conductive portion 31 is opposite to the hollow portion 61. The liquid crystal module 50 includes an upper polarizer 51, a color filter 52, a liquid crystal layer 53, an electrode array layer 54, and a lower polarizer 55, which are sequentially attached. The upper polarizer 51 is attached to the cover plate 10. The backlight assembly 60 includes a light guide plate 62 attached to the lower polarizer 55, a backlight plate 63 attached to a side of the light guide plate 62 facing away from the liquid crystal assembly 50, and a light source 64 fixed to an edge of the light guide plate 62. The light source 64 can illuminate the light guide plate 62, and the hollow portion 61 is disposed on the backlight plate 63. When the user's fingerprint is pressed against the cover plate 10 and deviates from the display module 20. The pressed area a of the user's fingerprint may be determined by the touch layer 121. The electrode array layer 54 may drive the liquid crystal layer 53 in a region directly opposite to the pressing region a according to the pressing region a to form a screen-off region c. The screen extinguishing area c is opposite to the hollow part 61, so that the screen extinguishing area c and the hollow part 61 can transmit a peak detection signal emitted from the first conducting part 11. The blanking area d conducts a peak detection signal to the bottom plate 30. When the touch layer 121 detects the pressing area a, the electrode array layer 54 may form an annular lighting area b surrounding the periphery of the screen extinguishing area d according to the pressing area a. The annular lighting area b is combined with the upper polarizer 51, the lower polarizer 55, the light guide plate 62 and the backlight plate 63 to form an aperture capable of emitting light, and the aperture can emit fingerprint detection light to a user fingerprint; the fingerprint detection light penetrates through the cover plate 10 and irradiates to the fingerprint of the user, and when the peak area of the fingerprint of the user is detected, the peak fingerprint detection light with a specific incident angle is formed in the peak area of the fingerprint of the user. User's crest fingerprint detection light passes through first conduction portion 11, puts out screen area c and second conduction portion 31 conduction extremely in proper order fingerprint sensing module 40 finally realizes discerning user's fingerprint image.
Referring to fig. 6, the present application further provides an electronic device 200, where the electronic device 200 includes the display screen 100 and the fingerprint sensing module 40. The fingerprint sensing module 40 is fixed on one side of the bottom plate 30 departing from the display module 20. The sensing area of the fingerprint sensing module 40 is projected on the front of the cover plate 10, and can be completely overlapped with the light transmission area of the cover plate 10, so that the fingerprint can be collected on the full screen of the display screen 100. The orthographic projection of the sensing area of the fingerprint sensing module 40 on the cover plate 10 may also be partially overlapped with the light-transmitting area of the cover plate 10. That is, the display screen 100 can only collect fingerprints in a fixed area corresponding to the fingerprint sensing module 40. The second conductive part 31 is disposed on the opposite region of the fingerprint sensing module 40 of the bottom plate 30.
In this embodiment, the display module 20 of the display screen 100 serves as a fingerprint detection signal emission source of the fingerprint sensing module 40. Display module assembly 20 can be at the marginal emission fingerprint detection light of user's fingerprint to make user's fingerprint crest region can reflect specific incident angle's fingerprint light, and the trough of user's fingerprint then can't reflect specific incident angle's fingerprint light, and then discernment user's fingerprint light. Display screen 100's display module assembly 20 also can only realize showing the image function, display screen 100 also can utilize external light to shine to user's fingerprint from the edge of user's fingerprint under the screen state of putting out, also can make the fingerprint light of the specific incident angle of peak area reflection of user's fingerprint.
In this embodiment, fingerprint sensing module 40 includes collimating mirror 41 and fingerprint sensing chip 42, collimating mirror 41 is fixed in bottom plate 30 with second conduction portion 31 is just right department, collimating mirror 41 filters the fingerprint detection light of user's fingerprint reflection, fingerprint sensing chip 42 is fixed in collimating mirror 41 with bottom plate 30 deviates from one side. The collimator lens 41 completely covers the sensing area of the fingerprint sensing chip 42. The collimating lens 41 can allow the specific angle of the user fingerprint wave crest region to enter the fingerprint detection light to pass through, so that the fingerprint sensing chip 42 can only receive the specific angle of the user fingerprint wave crest region to detect the fingerprint detection light, and the fingerprint sensing module 40 can identify the fingerprint wave crest region of the user. The collimator lens 41 may be attached to the base plate 30, or may be spaced apart from the base plate 30. The collimator lens 41 may be attached to the fingerprint sensor chip 42, or may have a distance from the fingerprint sensor chip 42. The fingerprint sensing module 40 includes an infrared filter 43, and the infrared filter 43 is fixed on the fingerprint sensing chip 42 facing to one side of the base plate 30. The infrared filter 43 can filter out infrared rays in the user fingerprint detection light, and the fingerprint sensing chip 42 senses the user fingerprint detection light more accurately.
In one embodiment, referring to fig. 7, the infrared filter 43 is located between the collimating mirror 41 and the fingerprint sensing chip 42. The infrared filter 43 may be attached to the collimator lens 41 and the fingerprint sensing chip 42. The infrared filter 43 may also be attached to the fingerprint sensor chip 42 with a gap between the infrared filter and the collimator 41. The infrared filter 43 may also be spaced apart from the collimator lens 41 and from the fingerprint sensor chip 42.
In another embodiment, referring to fig. 8, the infrared filter 43 is located on the side of the collimating mirror 41 facing the base plate 30. The infrared filter 43 may be attached to the base plate 30 and the collimator lens 41. The infrared filter 43 may be attached to the base plate 30, and may have a gap from the collimator lens 41. The infrared filter 43 may also be spaced from the base plate 30 and from the collimating mirror 41.
In another embodiment, referring to fig. 9, the electronic device 200 further includes a signal emitting source 70 fixed to a side of the display screen 100, and the signal emitting source 70 can emit a fingerprint detection signal toward the first conducting portion 11. The signal emitting source 70 may emit an ultrasonic signal, an infrared light signal, an electromagnetic signal, or the like. Contradict in user's fingerprint the apron 10 deviates from when the one side of display module assembly 20, signal emission source 70 can be towards user's fingerprint transmission fingerprint detected signal, fingerprint detected signal is through first conduction portion 11 conduction is to user's fingerprint. Since the signal emitting source 70 is located at the side of the display screen 100, the fingerprint detection signal can be irradiated to the pressing area of the user fingerprint by the user fingerprint edge. After receiving the fingerprint detection signal, the user fingerprint can reflect the fingerprint detection signal with a specific angle in the peak area of the user fingerprint, and reflect the fingerprint detection signal with a specific angle to the first conducting portion 11, and conduct to the display module 20 through the first conducting portion 11, and conduct to the second conducting portion 31 through the display module 20. With the conductive medium of the second conductive part 31 being the same as the conductive medium of the first conductive part 11, the fingerprint detection signal transmission direction exiting from the second conductive part 31 is parallel to the fingerprint detection signal transmission direction entering the first conductive part 11, that is, the specific angle fingerprint detection signal entering the user fingerprint peak area of the first conductive part 11 is retained. The fingerprint sensing module 40 includes a signal filter 44 and a fingerprint sensing chip 42. The signal filter 64 may filter out a stray fingerprint detection signal, and only retain a fingerprint detection signal at a specific angle, so that a peak region image of a user fingerprint may be identified. Utilize signal emission source 70 transmits fingerprint detection signal, can improve fingerprint detection signal's stability, and avoid utilizing display module assembly 20 of display screen 100 provides fingerprint detection signal, and then can improve display screen 100's life.
Referring to fig. 1 and fig. 10, the present application further provides a fingerprint processing method applied to the electronic device 200, where the fingerprint processing method includes the steps of:
101: upon detecting a fingerprint acquisition request, a pressing area of a user's finger is determined.
Specifically, the electronic device 200 may detect the fingerprint collection request through a touch sensor, a key switch, a camera, a distance sensor, a receiver, and other devices. For example, when the electronic device 200 detects a fingerprint acquisition request through the touch layer 121 of the display screen 100, the touch layer 121 senses a user pressing touch signal within a preset time period, and it is determined that the electronic device 200 detects the fingerprint acquisition request. Alternatively, a setting gesture may be preset, and when the gesture input is received on the touch layer 121 of the display screen 100, it is determined that the electronic device 200 detects the fingerprint acquisition request. For another example, when the electronic device 200 detects a fingerprint collection request through the microphone and the distance sensor, the microphone may receive a voice command of the user and transmit the voice command to the controller, the controller analyzes corresponding voice content according to the voice command, and if the voice content includes content such as "perform fingerprint collection" or "fingerprint recognition", it is determined that the electronic device 200 detects the fingerprint collection request.
It is understood that the display screen 100 of the electronic device 200 has a fingerprint recognition area. When the electronic device 200 detects a fingerprint acquisition request, a pressing area of a user's finger is determined within a fingerprint identification area of the display screen 100. The fingerprint identification area may be a full screen area of the display screen 100, or a partial area of the display screen 100, or a preset area of the display screen 100. Specifically, the fingerprint identification area of the display screen 100 is that the fingerprint sensing chip 42 of the fingerprint sensing module 40 is in the orthographic projection area of the display screen 100. The pressing area is an area where a user's finger contacts the display screen 100 or an area where the user's finger approaches the display screen 100 and is orthographically projected on the display screen 100.
In one embodiment, when the electronic device 200 senses a touch signal of a finger of a user in a fingerprint identification area through the touch layer 121 of the display screen 100, a fingerprint acquisition request is detected, and an area where the finger of the user is in contact with the display screen 100 is determined as a pressing area according to the touch signal sensed by the touch layer 121, so as to conveniently acquire a fingerprint image of the finger of the user according to the pressing area.
In another embodiment, when the electronic device 200 senses touch signals of a plurality of fingers of a user in a fingerprint identification area through the touch layer 121 of the display screen 100, a plurality of fingerprint acquisition requests are detected, and a plurality of areas where the plurality of fingers of the user are in contact with the display screen 100 are determined as a plurality of pressing areas according to the plurality of touch signals sensed by the touch layer 121, so as to conveniently acquire fingerprint images of the plurality of fingers of the user according to the plurality of pressing areas.
The fingerprint processing method comprises the following steps:
102: a fingerprint detection signal is transmitted. In this embodiment, the electronic device 200 may control a partial region of the display screen 100 to be in a bright screen state, so that the region in the bright screen state emits visible light to realize emission of the fingerprint detection signal. Of course, in other embodiments, the emission of the fingerprint detection signal may also be implemented by an infrared light source of the electronic device 200 emitting infrared light. The transmission of the fingerprint detection signal may also be achieved by an ultrasonic wave transmitted by an ultrasonic transmitter of the electronic device 200.
In one embodiment, after the electronic device 200 detects the fingerprint acquisition request, the display screen 100 of the electronic device 200 is in a screen-off state in the fingerprint identification area. The electronic device 200 determines a to-be-lit area and a screen-off area of the display screen 100 according to the pressing area, wherein the screen-off area at least covers the pressing area, and the to-be-lit area is located on the periphery of the screen-off area; after determining the area to be lit and the screen-off area, the electronic device 200 lights the area to be lit to form a bright screen area, where the bright screen area may emit the fingerprint detection signal. The electronic device 200 emits visible light through the bright screen area to realize emission of the fingerprint detection signal.
Specifically, determining the screen-out area according to the pressing area may be determining the pressing area as the screen-out area, or determining an area formed after an edge of the pressing area is shifted outward as the screen-out area. In one embodiment, the screen-out area coincides with the pressing area. That is, the screen-off region is a region where a user's finger touches the display screen 100 or a forward projection region where the user's finger is close to the display screen 100 and formed on the display screen 100. And determining the area to be lit according to the pressed area may be determining an area other than the pressed area on the display screen 100 as the area to be lit. As an implementation manner, the area to be lighted may be an annular area surrounding the periphery of the screen extinguishing area. The regional area of waiting to lighten of display screen 100 is located put out screen area week side, it forms to wait to lighten the regional illumination bright screen is regional back, the bright screen is regional to be located put out screen area week side, that is to say the bright screen area is located the regional week side that the user pointed to touch display screen 100, perhaps is located the user finger and is close to display screen 100 forms the regional week side of orthographic projection of display screen 100. Of course, in other embodiments, determining the screen extinguishing area according to the pressing area may be determining an area formed after an edge of the pressing area is shifted outward by a preset distance as the screen extinguishing area, that is, the screen extinguishing area is larger than the pressing area. The area to be lit may be all areas of the display screen 100 except the screen-off area, or may be a discontinuous annular area on the display screen 100 on the periphery of the screen-off area.
It is understood that, by locating the area to be lighted on the peripheral side of the screen-off area, the screen-lighting area can be located on the peripheral side of the area where the user's finger contacts the display screen 100, or on the peripheral side of the orthographic projection area of the display screen 100 where the user's finger is close to the display screen 100. The fingerprint detection signal emitted by the bright screen area can be irradiated to the peak area and the valley area of the finger of the user from the position of the peripheral side of the area where the finger of the user contacts the display screen 100, or from the position of the peripheral side of the orthographic projection area where the finger of the user approaches the display screen 100 and is formed on the display screen 100, so that the peak area of the finger of the user can reflect the reflection signal of a specific angle. That is to say, the user finger is receiving the fingerprint detection signal that bright screen area was launched, can reflect the crest reflection signal of specific angle to conveniently gather the crest reflection signal of user's fingerprint on specific angle, improve fingerprint signal collection efficiency, improve the fingerprint identification accuracy nature.
In another embodiment, after the electronic device 200 detects the fingerprint acquisition request, the display screen 100 of the electronic device 200 is in a bright screen state in the fingerprint identification area. The electronic device 200 determines a to-be-extinguished area and a bright screen area of the display screen 100 according to the pressed area, wherein the to-be-extinguished area at least covers the pressed area, and the bright screen area is located on the periphery of the to-be-extinguished area; after determining the area to be turned off and the bright screen area, the electronic device 200 turns off the area to be turned off to form the area to be turned off, wherein the bright screen area transmits a fingerprint detection signal towards a fingerprint of a user.
Specifically, the determining of the area to be extinguished according to the pressing area may be determining the pressing area as the area to be extinguished, or determining an area formed after the edge of the pressing area is outwardly offset as the area to be extinguished. In one embodiment, the area to be extinguished coincides with the pressing area. That is, the area to be extinguished is an area where a user's finger touches the display screen 100 or an orthographic projection area formed on the display screen 100 and near the display screen 100. And determining the bright screen region according to the pressed region may be determining a region of the display screen 100 other than the pressed region as the bright screen region. As an implementation manner, the bright screen area may be an annular area surrounding the periphery of the screen extinguishing area. The bright screen region of display screen 100 is located wait to extinguish screen region week side, wait to extinguish screen region and extinguish and form after the screen region is put out, bright screen region is located extinguish screen region week side, that is to say bright screen region is located the regional week side of user's finger contact display screen 100, perhaps is located the user's finger and is close to display screen 100 forms the regional week side of orthographic projection of display screen 100. Of course, in other embodiments, determining the region to be screen extinguished according to the pressing region may be determining a region formed after the edge of the pressing region is shifted outward by a preset distance as the region to be screen extinguished, that is, the region to be screen extinguished is larger than the pressing region. The bright screen region may be all regions of the display screen 100 except the region to be extinguished, or may be a discontinuous annular region located on the periphery of the region to be extinguished on the display screen 100.
It is understood that, by locating the bright screen area on the peripheral side of the area to be extinguished, the bright screen area may be located on the peripheral side of the area where the user's finger contacts the display screen 100, or on the peripheral side of the orthographic projection area of the display screen 100 where the user's finger is close to the display screen 100. The fingerprint detection signal emitted by the bright screen area can be irradiated to the peak area and the valley area of the finger of the user from the position of the peripheral side of the area where the finger of the user contacts the display screen 100, or from the position of the peripheral side of the orthographic projection area where the finger of the user approaches the display screen 100 and is formed on the display screen 100, so that the peak area of the finger of the user can reflect the reflection signal of a specific angle. That is to say, the user finger is receiving the fingerprint detection signal that bright screen area was launched, can reflect the crest reflection signal of specific angle to conveniently gather the crest reflection signal of user's fingerprint on specific angle, improve fingerprint signal collection efficiency, improve the fingerprint identification accuracy nature.
In another embodiment, after the electronic device 200 detects a plurality of fingerprint acquisition requests and determines pressing areas of a plurality of fingers of a user, the electronic device 200 determines, according to the plurality of pressing areas, to-be-lit areas and screen-off areas of the display screen 100, where the screen-off areas at least cover the plurality of pressing areas, and the to-be-lit areas are located on the periphery of the screen-off areas; after determining the area to be lighted and the screen-off area, the electronic device 200 lights the area to be lighted to form a bright screen area, wherein the bright screen area emits a fingerprint detection signal towards a fingerprint of a user.
Specifically, the determining of the screen-out area according to the plurality of pressing areas may be calculating a graphic processing area that may include the plurality of pressing areas according to coordinate positions of the plurality of pressing areas on the display screen, and determining the graphic processing area as the screen-out area. That is, the screen-off region may include a region where a plurality of fingers of the user touch the display screen 100 or a forward projection region where a plurality of fingers of the user are formed near the display screen 100 and on the display screen 100. And determining the area to be lit according to the pressed area may be determining an area of the display screen 100 other than the screen-off area as the area to be lit. As an implementation manner, the area to be lighted may be an annular area surrounding the periphery of the screen extinguishing area. The regional area of waiting to lighten of display screen 100 is located put out screen area week side, it forms to wait to lighten the regional illumination bright screen is regional back, the bright screen is regional to be located put out screen area week side, that is to say the bright screen area is located the regional week side that the user pointed to touch display screen 100, perhaps is located the user finger and is close to display screen 100 forms the regional week side of orthographic projection of display screen 100. The utilization of the screen-off area may include an area where a plurality of fingers of the user contact the display screen 100 or an area where a plurality of fingers of the user are close to the display screen 100 and formed in the orthographic projection area of the display screen 100, so that the electronic device 200 only needs to determine one screen-off area and one screen-on area, that is, only needs to extinguish a position where a plurality of fingers of the user contact or are close to the display screen 100 and light a position where a plurality of fingers of the user contact or are close to the display screen, and fingerprint image collection of a plurality of fingers of the user is realized, the screen-on area of the display screen 100 is reduced, the screen-off area of the display screen 100 is increased, and an energy saving effect is achieved.
The fingerprint processing method comprises the following steps:
103: through the peak reflection signal of user's fingerprint is gathered to fingerprint sensing module 40, forms the fingerprint image after handling, wherein, fingerprint detection signal conduction is to user's fingerprint peak region to the warp fingerprint peak region reflection forms peak reflection signal, peak reflection signal through behind first conduction portion with the second conduction portion, with original incident angle outgoing extremely fingerprint sensing module.
In this embodiment, the light emitted from the bright screen area of the display screen 100 is emitted to the user fingerprint through the cover plate 10 at the edge of the area where the user fingerprint contacts or approaches the display screen 100. After receiving the light emitted from the display screen 100, the peak area of the user fingerprint reflects the fingerprint detection light with a specific incident angle to the first conducting portion 11 of the cover plate 10, i.e., a peak detection signal is formed and reflected to the first conducting portion 11. The first conducting part 11 of the cover plate 10 conducts the fingerprint detection light with a specific incident angle to the display module 20 to face the screen-off area, and the fingerprint detection light is conducted to the second conducting part 31 of the bottom plate 30 through the display module 20, that is, the peak detection signal passes through the first conducting part 11 and the second conducting part 12. By setting the refractive index of the second conducting portion 31 to be the same as the refractive index of the first conducting portion 11, the second conducting portion 31 emits a peak reflection signal in a peak area in a direction parallel to a specific incident angle, that is, the display screen 100 emits the peak reflection signal to the fingerprint sensing module 40 at an original incident angle. The fingerprint sensing module 40 removes noise of the peak reflection signal by using the collimator lens 41, and only retains the peak reflection signal of the peak area at a specific incident angle, so that the fingerprint sensing chip 42 can identify the peak area image of the user fingerprint.
Embodiments of the present application also provide a computer storage medium, where the computer storage medium stores a computer program for electronic data exchange, and the computer program enables a computer to execute part or all of the steps of any one of the methods described in the above method embodiments, and the computer may be an electronic device.
Embodiments of the present application also provide a computer program product comprising a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any of the methods as described in the above method embodiments. The computer program product may be a software installation package and the computer may be an electronic device.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units is only one type of division of logical functions, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit may be stored in a computer readable memory if it is implemented in the form of a software functional unit and sold or used as a stand-alone product. Based on such understanding, the technical solution of the present application may be substantially implemented or a part of or all or part of the technical solution contributing to the prior art may be embodied in the form of a software product stored in a memory, and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the above-mentioned method of the embodiments of the present application. And the aforementioned memory comprises: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable memory, which may include: flash Memory disks, Read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
In summary, although the present application has been described with reference to the preferred embodiments, the present application is not limited to the preferred embodiments, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, so that the scope of the present application is defined by the appended claims.
The foregoing is a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations are also regarded as the protection scope of the present application.
Claims (20)
1. A display screen is characterized in that the display screen comprises a cover plate, a display module and a bottom plate which are sequentially attached, the cover plate comprises a first conducting part which is used for conducting fingerprint signals and transmitting the fingerprint signals to the bottom plate through the display module, the bottom plate comprises a second conducting part which is opposite to the first conducting part, the second conducting part is used for conducting fingerprint signals and emitting the fingerprint signals to the fingerprint sensing module, the refractive index of the second conductive part is the same as that of the first conductive part, so that the fingerprint detection signal is incident to the first conductive part in a specific angle direction, and is transmitted to the second transmission part through the display screen module, and still emits a fingerprint detection signal from the second transmission part to the fingerprint sensing module in a specific angle direction, the fingerprint detection signal is a peak fingerprint detection signal with a specific incident angle formed after the reflection of a peak area of the fingerprint of the user.
2. The display screen of claim 1, wherein the display module has a display area, and the second conductive portion is opposite to the display area.
3. The display screen of claim 2, wherein the orthographic projection of the second conductive portion on the display module occupies a portion or all of the display area.
4. A display screen in accordance with claim 1, wherein the orthographic projection of the second conductive portion on the cover plate is within the first conductive portion.
5. The display screen according to any one of claims 1 to 4, wherein the display module comprises a liquid crystal assembly and a backlight assembly, the liquid crystal assembly is attached to the cover plate, the backlight assembly is attached to the liquid crystal assembly, the backlight assembly is provided with a hollow portion, the bottom plate is attached to the backlight assembly, and the second conduction portion is opposite to the hollow portion.
6. The display screen of claim 5, wherein the backlight assembly comprises a light guide plate attached to the liquid crystal assembly, a backlight plate attached to a side of the light guide plate away from the liquid crystal assembly, and a light source fixed to an edge of the light guide plate, wherein the light source can illuminate the light guide plate, and the hollow portion is disposed on the backlight plate.
7. The display screen of any one of claims 1 to 4, wherein the display module comprises a cathode layer, an organic electroluminescent layer and an anode layer, which are sequentially attached to each other, the cathode layer is attached to the cover plate, the bottom plate is attached to the anode layer, and the organic electroluminescent layer can form a signal conduction area in an area directly opposite to the second conduction portion and form a partially lit light emitting area around the signal conduction area.
8. The display screen of claim 7, wherein the display module comprises a substrate attached to the anode layer facing away from the organic electroluminescent layer, and the backplane is attached to a side of the substrate facing away from the anode layer.
9. An electronic device, characterized in that, the electronic device includes the display screen of any one of claims 1-8, the electronic device includes a fingerprint sensing module, the fingerprint sensing module is fixed on the bottom plate and the second conduction part right face.
10. The electronic device of claim 9, wherein the display module emits a light beam at a position offset from the first conductive portion, and the fingerprint sensor module receives a light beam reflected by a user's fingerprint through the second conductive portion.
11. The electronic device of claim 10, wherein the fingerprint sensor module comprises a collimator lens and a fingerprint sensor chip, the collimator lens is fixed at a position where the bottom plate faces the second conductive portion, the collimator lens filters fingerprint detection light reflected by a user fingerprint, and the fingerprint sensor chip is fixed at a side where the collimator lens and the bottom plate face away from each other.
12. The electronic device of claim 11, wherein the fingerprint sensor module comprises an infrared filter, and the infrared filter is fixed on a side of the fingerprint sensor chip facing the bottom plate.
13. The utility model provides a fingerprint processing method, its characterized in that is applied to electronic equipment, electronic equipment includes display screen and fingerprint sensing module, the display screen includes apron and bottom plate, the apron includes first conduction portion, the bottom plate include with just right second conduction portion of first conduction portion, the refracting index of second conduction portion is the same with the refracting index of first conduction portion, the fingerprint processing method includes:
when a fingerprint acquisition request is detected, determining a pressing area of a finger of a user;
transmitting a fingerprint detection signal;
through the peak reflection signal of user's fingerprint is gathered to fingerprint sensing module, forms the fingerprint image after handling, wherein, fingerprint detection signal conduction is to user's fingerprint crest region to the warp fingerprint crest regional reflection forms peak reflection signal, peak reflection signal pass through first conduction portion with behind the second conduction portion, with original incident angle outgoing extremely fingerprint sensing module.
14. The fingerprint processing method of claim 13, wherein the transmitting the fingerprint detection signal comprises the steps of:
determining a to-be-lightened area and a screen-off area of the display screen according to the pressing area, wherein the screen-off area at least covers the pressing area, and the to-be-lightened area is located on the peripheral side of the screen-off area;
and lightening the area to be lightened to form a bright screen area capable of emitting fingerprint detection light towards the fingerprint of the user.
15. The fingerprint processing method according to claim 14, wherein in the step of determining the area to be lit on the display screen according to the pressed area, the screen-off area coincides with the pressed area, and the area to be lit has an annular area surrounding the pressed area.
16. The fingerprint processing method according to claim 14, wherein in the step of determining a pressing area of the user's finger when the fingerprint collection request is detected, the fingerprint collection request is at least one, and the pressing area corresponds to the fingerprint collection request.
17. The fingerprint processing method according to claim 16, wherein in the step of determining the area of the display screen to be lit according to the pressed area, the screen-off area covers the at least one pressed area.
18. The fingerprint processing method of claim 13, wherein the transmitting the fingerprint detection signal comprises the steps of:
determining a screen to be extinguished and a screen bright area of the display screen according to the pressing area, wherein the screen to be extinguished at least covers the pressing area, and the screen bright area is located on the periphery of the screen to be extinguished;
and extinguishing the area to be extinguished to form an area to be extinguished, wherein the fingerprint of the user in the area to be extinguished emits a fingerprint detection signal.
19. The fingerprint processing method of claim 18, wherein the bright screen area is an annular area surrounding the area to be extinguished.
20. The fingerprint processing method according to any one of claims 13 to 19, wherein in the step of determining the pressing area of the user's finger when the fingerprint collection request is detected, a bright screen signal is detected, and the fingerprint collection request is determined based on the bright screen signal.
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| CN110287852A (en) * | 2019-06-20 | 2019-09-27 | Oppo广东移动通信有限公司 | Finger prints processing method and electronic equipment |
| CN110598663B (en) * | 2019-09-18 | 2021-06-01 | Oppo广东移动通信有限公司 | Display screen assembly, electronic equipment and fingerprint processing method |
| WO2022188182A1 (en) * | 2021-03-12 | 2022-09-15 | 深圳市汇顶科技股份有限公司 | Detection apparatus for biological characteristic information and electronic device |
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| KR20140022625A (en) * | 2012-08-14 | 2014-02-25 | 동우 화인켐 주식회사 | Touch screen panel with improved visibility of pattern |
| CN105184248B (en) * | 2015-08-28 | 2019-03-12 | 京东方科技集团股份有限公司 | A kind of fingerprint identification device and fingerprint recognition system |
| CN105184282B (en) * | 2015-10-14 | 2019-04-23 | 京东方科技集团股份有限公司 | Optical finger print detection device and display equipment |
| KR101683759B1 (en) * | 2016-08-29 | 2016-12-07 | 실리콘 디스플레이 (주) | Fingerprint recognition sensor and portable display device having the same |
| CN106897712B (en) * | 2017-03-13 | 2020-01-14 | Oppo广东移动通信有限公司 | Fingerprint module, display screen and mobile terminal |
| CN107169452B (en) * | 2017-05-12 | 2020-04-10 | Oppo广东移动通信有限公司 | Fingerprint module, display device and mobile terminal |
| CN107527039B (en) * | 2017-08-31 | 2019-09-17 | 京东方科技集团股份有限公司 | A kind of optical fingerprint identification device and display device |
| CN107608122B (en) * | 2017-10-19 | 2021-01-15 | Oppo广东移动通信有限公司 | Display screen, functional assembly and mobile terminal |
| CN108196336B (en) * | 2018-01-02 | 2020-06-30 | 京东方科技集团股份有限公司 | Light guide plate, backlight module and display device |
| CN108287634B (en) * | 2018-01-29 | 2020-11-03 | 上海天马微电子有限公司 | Touch display panel, display device and driving method of touch display panel |
| CN108803146B (en) * | 2018-07-03 | 2021-07-30 | Oppo广东移动通信有限公司 | Display screen assembly and electronic equipment |
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