WO2019127169A1 - 电子设备 - Google Patents

电子设备 Download PDF

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Publication number
WO2019127169A1
WO2019127169A1 PCT/CN2017/119153 CN2017119153W WO2019127169A1 WO 2019127169 A1 WO2019127169 A1 WO 2019127169A1 CN 2017119153 W CN2017119153 W CN 2017119153W WO 2019127169 A1 WO2019127169 A1 WO 2019127169A1
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WO
WIPO (PCT)
Prior art keywords
electronic device
fingerprint
display
display screen
display area
Prior art date
Application number
PCT/CN2017/119153
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English (en)
French (fr)
Inventor
林峰
Original Assignee
深圳信炜科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳信炜科技有限公司 filed Critical 深圳信炜科技有限公司
Priority to PCT/CN2017/119153 priority Critical patent/WO2019127169A1/zh
Priority to CN201790000310.0U priority patent/CN209281372U/zh
Publication of WO2019127169A1 publication Critical patent/WO2019127169A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints

Definitions

  • the utility model relates to an electronic device.
  • the fingerprint recognition module cannot be set up, in order to realize the identification, the industry has proposed two solutions.
  • the first one is a relatively mature technology, that is, the fingerprint recognition module is placed on the back or side of the mobile phone; In the theoretical research phase, the fingerprint recognition module is placed in the display screen, for example, placed under the display screen.
  • the second solution can solve the problem of full screen identification in theory, since the fingerprint recognition module is located in a partial area of the display screen, the user cannot accurately perceive the area, thus causing the identification failure to make the mobile phone unable to unlock, so Affect the user's use.
  • inventions of the present invention aim to at least solve one of the technical problems existing in the prior art. To this end, embodiments of the present invention need to provide an electronic device.
  • the utility model provides an electronic device, comprising a display screen, a fingerprint identification module disposed on the display screen and located under the predetermined display area of the display screen, and a control module; a predetermined display area and a display area of the display screen
  • the effective identification area of the fingerprint identification module is corresponding to;
  • the control module is configured to: when the electronic device is in the interest screen state, provide a first driving signal to the display screen, and drive k display pixel points in the predetermined display area And illuminating; and providing a second driving signal to the fingerprint identification module, driving the fingerprint identification module to collect fingerprint information, wherein k is a natural number greater than 2.
  • the embodiment of the present invention prompts the touch position of the user's finger by illuminating the predetermined display area of the display screen when the electronic device is in the state of the interest screen, and the fingerprint in the working state when the target object is placed in the predetermined display area.
  • the identification module can collect fingerprint information of the finger, thereby quickly identifying the identity. Therefore, the embodiment of the present invention not only enables the user to accurately sense the touch position of the finger, but also can quickly perform identity recognition, thereby achieving quick unlocking.
  • the display pixels in the predetermined display area are time-divisionally illuminated, the standby power consumption of the display screen is saved, and the same display pixel is prevented from being lit for a long time, which easily causes the display pixel to age, and the electronic device is improved. The service life of the device display and the effect of its use.
  • a projection of a predetermined display area of the display screen falls within an effective identification area of the fingerprint recognition module, or The effective recognition areas of the fingerprint identification module are completely coincident. In this way, as long as the user's finger is located in the predetermined display area, the fingerprint information can be collected even if the light is deviated from the illuminated area, thereby improving the fingerprint collection efficiency.
  • the k display pixels are at least a portion of display pixels within a predetermined display area of the display screen.
  • control module is configured to control a portion of the display pixels of the k display pixels to be simultaneously illuminated, wherein the simultaneously illuminated display pixels form a pattern.
  • the pattern is located at a central location of the predetermined display area.
  • the k display pixels are divided into at least two groups, and the at least two sets of display pixels are illuminated in turn.
  • the k display pixels are display pixels at a boundary location of a predetermined display area.
  • simultaneously illuminated display pixels are disposed adjacent or spaced apart.
  • the predetermined display area is rectangular, square, circular, elliptical.
  • the electronic device further includes a touch sensing module for detecting whether there is an object touch in the predetermined display area; the control module is further configured to: provide when the electronic device is in a state of interest screen a third driving signal is sent to the touch sensing module, and the touch sensing module is driven to perform touch detection.
  • the second driving signal is provided to the fingerprint identification module.
  • the fingerprint identification module is driven to collect fingerprint information.
  • the fingerprint recognition module is awakened only when it is determined that there is an object touch in the predetermined display area, so that the fingerprint identification module collects the fingerprint information. In this way, not only the power consumption when the electronic device is in the state of the screen is reduced, but also the fingerprint recognition module is kept in the working state, thereby prolonging the service life of the fingerprint recognition module.
  • control module is further configured to: when it is determined that there is an object touch in the predetermined display area, control a predetermined display area of the display screen to be all lit, and simultaneously drive the fingerprint identification module to collect fingerprint information.
  • the light signal emitted when the display screen is lit is used as the light source of the fingerprint recognition module to collect the fingerprint information.
  • the fingerprint identification module can realize the collection of fingerprint information without additionally setting a light source, thereby further saving the cost of the fingerprint identification module.
  • the touch sensing module is integrated with the display screen as a touch display screen.
  • the fingerprint recognition module is a fingerprint chip and is located below a predetermined display area of the display screen.
  • the fingerprint recognition module includes an optical sensor, an ultrasonic sensor, a capacitive sensor.
  • FIG. 1 is a schematic front view of an electronic device according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional structural view of the electronic device of FIG. 1 along an I-I line;
  • FIG. 3 is a cross-sectional structural view of another embodiment of the electronic device of FIG. 1 along the line I-I;
  • FIG. 4 is a schematic diagram of functional modules of an electronic device according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a circuit structure when an display screen is an OLED display screen in an electronic device according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram showing the circuit structure of the fingerprint identification module of the present invention.
  • FIG. 7 is a schematic diagram showing the circuit structure of an embodiment of a fingerprint sensing unit of FIG. 6;
  • FIG. 8 is a schematic diagram showing an embodiment of a fingerprint input pattern of an electronic device of the present invention in a state of a screen
  • FIG. 9 is a schematic diagram showing another embodiment of a fingerprint input pattern of an electronic device of the present invention in a state of a polyscreen
  • FIG. 10 is a schematic diagram showing another embodiment of a fingerprint input pattern of an electronic device of the present invention in a state of a polyscreen;
  • FIG. 11 is a cross-sectional structural view of still another embodiment of the electronic device of FIG. 1 taken along line I-I.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. .
  • features defining “first” or “second” may include one or more of the described features either explicitly or implicitly.
  • the meaning of "a plurality” is two or more unless specifically and specifically defined otherwise.
  • Contact or “touch” includes direct or indirect contact.
  • the display screen disclosed hereinafter is disposed under the protective cover of the electronic device, and the object indirectly contacts the display through the protective cover.
  • connection is to be understood broadly, and may be, for example, a fixed connection or a Disassembling the connection, or connecting integrally; may be mechanical connection, electrical connection or communication with each other; may be directly connected, or may be indirectly connected through an intermediate medium, may be internal communication of two elements or mutual interaction of two elements Role relationship.
  • installation is to be understood broadly, and may be, for example, a fixed connection or a Disassembling the connection, or connecting integrally; may be mechanical connection, electrical connection or communication with each other; may be directly connected, or may be indirectly connected through an intermediate medium, may be internal communication of two elements or mutual interaction of two elements Role relationship.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the embodiment of the present invention provides an electronic device applied to a screen with a fingerprint recognition module, and the effective recognition area of the fingerprint recognition module is a partial display area of the display screen of the electronic device.
  • the user of the electronic device needs to be identified, the user is prompted to place the target object in the effective identification area, and at the same time, by waking up the fingerprint identification module, the fingerprint identification module collects the fingerprint information of the user, and according to the collected The fingerprint information identifies the user, and after the recognition is successful, performs corresponding operations, such as unlocking, launching an application, performing a payment transaction, and the like.
  • the electronic device is, for example, but not limited to, a suitable type of electronic product such as a consumer electronic product, a home-based electronic product, a vehicle-mounted electronic product, or a financial terminal product.
  • consumer electronic products such as mobile phones, tablets, notebook computers, desktop monitors, computer integrated machines.
  • Home-based electronic products such as smart door locks, TVs, refrigerators, wearable devices, etc.
  • Vehicle-mounted electronic products such as car navigation systems, car DVDs, etc.
  • Financial terminal products such as ATM machines, terminals for self-service business, etc.
  • the effective identification area of the fingerprint recognition module is, for example, located in the lower, middle or upper portion of the display area of the display screen.
  • the position of the effective identification area is set, for example, according to the position that the user conveniently operates.
  • FIG. 1 is a schematic front view of the electronic device according to an embodiment of the present invention. Taking the electronic device as a mobile phone as an example, a predetermined display area S2 is provided on the display area S1 of the mobile phone, and the predetermined display area S2 is correspondingly set with the effective identification area S3 of the fingerprint identification module.
  • the predetermined display area S2 is located at a lower middle position of the display area S1, so that when the user holds the mobile phone, the thumb can be conveniently used for fingerprint operation.
  • the fingerprint recognition module is located below or above the predetermined display area S2 of the display screen, and along the stacking direction of the display screen to the fingerprint recognition module, the projection of the predetermined display area S2 of the display screen falls on the fingerprint recognition module.
  • the effective identification area S3 is completely coincident with the valid identification area S3 of the fingerprint recognition module.
  • the electronic device 1 includes, for example, a display screen 20 and a fingerprint recognition module 10, such as a fingerprint chip, and is located below the display screen 20.
  • the display screen 20 includes a plurality of display pixels 21, the light emitting regions of each of the display pixels 21 together forming a display area of the display screen 20.
  • the fingerprint recognition module 10 includes a plurality of fingerprint sensing units 11 that together form a valid identification area of the fingerprint recognition module 10. Taking the fingerprint sensing unit 11 as a photosensitive unit as an example, when a finger is placed on the contact surface of the electronic device and the object, that is, above the display screen 20, the light signal emitted by the display pixel 21 of the display screen 20 will reach the finger, passing the finger. After reflection, through the display screen 20 and to the fingerprint recognition module 10, the fingerprint recognition module 10 senses the optical signal and forms a fingerprint image. It can be understood that the display screen 20 has a light transmitting area through which a signal reflected by the finger passes.
  • FIG. 3 is a cross-sectional structural diagram of another embodiment of the electronic device of FIG. 1 along the line I-I.
  • the electronic device 1 includes, for example, a display screen 20 and a fingerprint recognition module 10.
  • the display screen 20 includes, for example, a TFT array substrate 22, and a plurality of display pixels 21 formed on the TFT array substrate 22.
  • the light emitting areas of each display pixel 21 together form a display area of the display screen 20.
  • a plurality of fingerprint sensing units 11 are further disposed on the TFT array substrate 20, and the number of the fingerprint sensing units 11 is smaller than the number of the display pixels 21.
  • the fingerprint sensing unit 11 is disposed corresponding to the position between the adjacent display pixels 21, and the light-shielding wall 23 is disposed on both sides of the fingerprint sensing unit 11 to prevent the light signal emitted by the display pixel 21 from being directly sensed by the fingerprint sensing unit 11. .
  • the sensing areas of each fingerprint sensing unit 11 together form a valid identification area of the fingerprint recognition module 10.
  • the electronic device includes, for example, a display device, a touch sensing module, and a fingerprint recognition module.
  • the display device includes, for example, an OLED display, an LCD display, a display driving circuit that drives the display for display, and the like.
  • the touch sensing module can be independently set and located on the light emitting side of the display. Of course, the touch sensing module can also be integrated into the display, so that the display is a touch display with touch and display functions.
  • the fingerprint identification module includes, for example, a fingerprint sensing unit, a fingerprint driving circuit that drives the fingerprint sensing unit to sense the fingerprint information, a signal processing circuit that processes the fingerprint information collected by the fingerprint sensing unit, and the like.
  • FIG. 4 is a schematic diagram of functional modules of an electronic device according to an embodiment of the present invention.
  • the electronic device 100 includes a display screen 20, a fingerprint identification module 10 and a control module 30 disposed in a layered manner with the display screen 20.
  • the control module 30 is electrically connected to the display screen 20 and the fingerprint recognition module 10, and is configured to provide a first driving signal to the display screen 20 when the electronic device is in the state of the information screen, and drive k display pixels in the predetermined display area. And illuminating; and providing a second driving signal to the fingerprint identification module 10, driving the fingerprint identification module 10 to collect fingerprint information.
  • k is a natural number greater than 2.
  • the state of the screen means that the display 20 of the electronic device is in an extinguished state, that is, an unlit state.
  • the status of the information screen can be entered through a button control on the electronic device, for example, pressing a power button of the electronic device, so that the electronic device can enter the state of the information screen.
  • a signal state signal is generated, and the control module 30 determines whether the electronic device is in the state of the interest screen according to the information state signal.
  • the control module 30 receives the information state signal, the first driving signal and the second driving signal are generated.
  • the first drive signal is provided to the display drive circuit 24 to drive the k display pixels in the predetermined display area of the display screen 20 to be time-divisionally illuminated.
  • the second driving signal is used to provide the fingerprint driving circuit 12 to drive the fingerprint sensing array 11' formed by the plurality of fingerprint sensing units 11 to collect fingerprint information.
  • k display pixels are preselected in the display pixels of the predetermined display area of the display screen 20, and the k display pixels are portions or all of the display pixels within the predetermined display area of the display screen 20.
  • the control module 30 controls the pre-selected k display pixels in the display screen 20 to be time-divisionally lit.
  • the time-division lighting means that the k display pixels are not lit at the same time, that is, after the current display pixel is illuminated for a predetermined time, the switching to other display pixels is turned on, and the current display pixel is turned off.
  • the illuminated display pixel plays a good role in prompting the user's fingerprint input operation, and since the display pixel is time-divisionally lit, the same display pixel is prevented from being lit for a long time, which is likely to cause the display pixel to age.
  • the problem is to improve the service life and use effect of the electronic device display.
  • the k display pixels are display pixels that are set by default by the electronic device system.
  • the corresponding display pattern may also be set according to the user's preference, so that the electronic device selects a corresponding plurality of display pixels from the display pixels of the predetermined display area according to the set pattern.
  • the embodiment of the present invention prompts the touch position of the user's finger by illuminating the predetermined display area of the display screen when the electronic device is in the state of the interest screen, and the fingerprint in the working state when the target object is placed in the predetermined display area.
  • the identification module can collect fingerprint information of the finger, thereby quickly identifying the identity. Therefore, the embodiment of the present invention not only enables the user to accurately sense the touch position of the finger, but also can quickly perform identity recognition, thereby achieving quick unlocking.
  • the display pixels in the predetermined display area are time-divisionally illuminated, the standby power consumption of the display screen is saved, and the same display pixel is prevented from being lit for a long time, which easily causes the display pixel to age, and the electronic device is improved. The service life of the device display and the effect of its use.
  • FIG. 5 is a schematic diagram of the circuit structure of the OLED display screen of the present invention.
  • the display screen includes a first scan line group and a first data line group arranged in a cross.
  • a plurality of first scanning lines are arranged along the G1, G12, ..., G1m in the Y1 direction; a plurality of first data lines S11, S12, ..., S1n are spaced apart in the X1 direction.
  • the plurality of first data lines and the plurality of first scan lines are not limited to the vertical arrangement shown in FIG. 5, and may be disposed at an angle, for example, 30°, 60°, or the like.
  • the first and second data lines that are arranged in a cross-cord define a plurality of display pixels 21 arranged in an array.
  • the distribution and the number of the first scan line group and the first data line group are not limited to the above-exemplified embodiments, and the corresponding scan lines may be correspondingly set according to the structure of the display pixels 21. Group and data line groups.
  • Each display pixel 21 includes at least one thin film transistor TFT and at least one light emitting diode D1.
  • the gate of the thin film transistor TFT is electrically connected to the first scan line
  • the source of the thin film transistor TFT is electrically connected to the first data line.
  • the plurality of first scan lines and the plurality of first data lines are connected to the display driving circuit 24, and the display driving circuit 24 provides corresponding to the first scan line and the first data line when receiving the first driving signal provided by the control module 30.
  • the control signal controls the k display pixels in the predetermined display area to be time-divisionally lit.
  • the display drive circuit 24 includes, for example, a shift register circuit, a timing control circuit, and the like.
  • the fingerprint identification module 10 includes, for example, an optical sensing module, a capacitive sensing module, and an ultrasonic sensing module.
  • the fingerprint recognition module 10 senses the fingerprint information of the finger. Measure and identify based on the sensed fingerprint information.
  • the optical sensing module as an example, the light source emits an optical signal and reaches the finger. After being reflected by the valley of the finger and the ridge, the reflected light is sensed by the optical sensing module and forms a fingerprint image of the finger.
  • the light source can be a light source or a display screen that is included in the optical sensing module.
  • FIG. 6 is a schematic diagram of a circuit structure of a fingerprint identification module of the present invention.
  • the fingerprint identification module 10 includes a second scan line group and a second data line group arranged in a cross.
  • a plurality of second scanning lines are arranged along the G2, G22, ..., G2m in the Y2 direction; a plurality of second data lines S21, S22, ..., S2n are spaced apart in the X2 direction.
  • the plurality of second data lines and the plurality of second scan lines are not limited to the vertical arrangement shown in FIG. 6, and may be disposed at an angle, for example, 30°, 60°, or the like.
  • the plurality of second scan lines and the plurality of second data lines arranged in a cross define a plurality of fingerprint sensing units 11 arranged in an array.
  • the distribution and the number of the second scan line group and the second data line group are not limited to the above-exemplified embodiments, and correspondingly according to the structure of the fingerprint sensing unit 11 Scan line groups and data line groups.
  • FIG. 7 is a schematic diagram of a circuit structure of an embodiment of a fingerprint sensing unit of FIG. 6.
  • the fingerprint sensing unit 11 is exemplified by a photosensitive unit, and each fingerprint sensing unit 11 includes at least one photosensitive device 110 and a switching device 111.
  • the switching device 111 has a control terminal C and two signal terminals.
  • the control terminal C of the switching device 111 is connected to the second scan line G2m.
  • One signal end of the switching device 111 is connected to the reference signal L via the photosensitive device 110, and the other signal end of the switching device 111 is connected to the second data line S2n.
  • the fingerprint sensing unit 11 illustrated in FIG. 7 is for illustrative purposes only and is not limited to other components of the fingerprint sensing unit 11.
  • the above-mentioned photosensitive device 110 is, for example but not limited to, any one or several of a photodiode, a phototransistor, a photodiode, a photo resistor, and a thin film transistor.
  • a photodiode as an example, a negative voltage is applied across the photodiode.
  • the photodiode receives the optical signal, a photocurrent is generated in a proportional relationship with the optical signal, and the received optical signal is more intense. Larger, the larger the photocurrent generated, the faster the voltage drop on the negative pole of the photodiode.
  • the intensity of the optical signal reflected from different parts of the target object is obtained, and the target is obtained. Biometric information of the object. It can be understood that a plurality of photosensitive devices 110 are provided to increase the photosensitive effect of the photosensitive device 110.
  • the switching device 111 is, for example but not limited to, any one or several of a triode, a MOS transistor, and a thin film transistor.
  • the switching device 111 may also include other types of devices, and the number may also be two, three, and the like.
  • a plurality of second scan lines are connected to a fingerprint driving circuit 12, and a plurality of second data lines are connected to a signal processing circuit 13.
  • the fingerprint driving circuit 12 is configured to generate a scan signal when the second driving signal provided by the control module 30 is received, and transmit the scan signal to the corresponding fingerprint sensing unit 11 through the corresponding scan line to drive the fingerprint sensing unit 11 to perform the light sense. Measurement.
  • the signal processing circuit 13 receives an electrical signal generated by the corresponding fingerprint sensing unit 11 performing light sensing through the second data line, and acquires fingerprint information of the finger according to the electrical signal.
  • the fingerprint driving circuit includes, for example, a shift register circuit, a timing control circuit, and the like.
  • the signal processing circuit includes, for example, an amplification circuit, a comparison circuit, and the like.
  • the above-described fingerprint recognition module 10 is not limited to the structure shown in the drawings, for example, a substrate for arranging a photosensitive unit.
  • the fingerprint driving circuit 12 and the signal processing circuit 13 may be selectively formed on the substrate, or may be electrically connected to the second scan line and the second data line, for example, through a connector (for example, a flexible circuit board).
  • the k display pixels will be divided into at least two groups, and the at least two sets of display pixels are illuminated in turn.
  • k display pixels are divided into two or more groups in advance, and the control module 30 controls the plurality of groups of display pixels to sequentially switch between lighting.
  • control module 30 is configured to control a portion of the display pixels of the k display pixels to be simultaneously illuminated, wherein the simultaneously illuminated display pixels form a corresponding pattern, and the patterns may be the same or different.
  • the pattern is located substantially at a central location of the predetermined display area such that fingerprint information is accurately captured when the user's finger is positioned on the pattern.
  • FIG. 8 is a schematic diagram showing an embodiment of a fingerprint input pattern in an electronic device of the present invention. It should be noted that, in FIG.
  • the display area of the display screen is in the lighting state except for the fingerprint input pattern in the predetermined display area S2, and the remaining positions are all off, and the predetermined display area S2 is not displayed, only for the purpose of The positional relationship between the predetermined display area and the fingerprint input pattern is explained.
  • the fingerprint input pattern in FIG. 8 is located substantially at the center of the predetermined display area S2, and the display position of the fingerprint input pattern is moved in a small range every predetermined time. Since the movement is small, the user experience is hardly affected. influences.
  • the fingerprint input pattern moving in a small range the same display pixel in the predetermined display area S2 of the display screen is prevented from being lit for a long time, which is easy to cause the display pixel to age, and the service life of the display screen of the electronic device is improved. Effect.
  • FIG. 9 is a schematic diagram showing another embodiment of the fingerprint input pattern of the electronic device of the present invention in the state of the interest screen.
  • the display area of the display screen is in the lighting state except for the fingerprint input pattern in the predetermined display area S2, and the remaining positions are all off, and the predetermined display area S2 is not displayed, only for the purpose of The positional relationship between the predetermined display area and the fingerprint input pattern is explained.
  • the fingerprint input pattern in FIG. 9 is located in the predetermined display area, and the display position of the fingerprint input pattern is moved every predetermined time.
  • the fingerprint input patterns displayed in the adjacent two times do not overlap, thereby avoiding the display pixels of the fingerprint input pattern from being illuminated for a long time, which easily causes the display pixels to age, and improves the service life and the use effect of the display screen of the electronic device. .
  • FIG. 10 is a schematic diagram showing another embodiment of the fingerprint input pattern in the state of the electronic device of the present invention.
  • the fingerprint input pattern in FIG. 10 is a boundary position of the predetermined display area S2, and the plurality of display pixels at the boundary position of the predetermined display area are divided into a plurality of groups, and each set of display pixels is lit to form a corresponding fingerprint input pattern.
  • the plurality of sets of fingerprint input patterns are switched between every predetermined time, and the pattern in the left page of FIG.
  • the unlocking operation of the electronic device can be performed by the fingerprint input pattern defining a predetermined display area, thereby prompting the user to place a finger in the predetermined display area.
  • the display of the fingerprint input pattern avoids the problem that the same display pixel is lit for a long time, which easily causes the display pixel to age, and improves the service life and the use effect of the display screen of the electronic device.
  • the foregoing is merely illustrative of the manner in which the fingerprint input pattern is displayed, and is not limited to the scope of the claimed invention.
  • various deformation structures and modes are performed within the scope of protection of the present invention.
  • the display pixel interval of the fingerprint input pattern is controlled to be lit, so that the fingerprint input pattern can be displayed and the same is avoided.
  • the display pixel is lit for a long time, it is easy to cause the display pixel to age, and the service life and the use effect of the display of the electronic device are improved.
  • simultaneously illuminated display pixels are disposed adjacent or spaced apart.
  • the predetermined display area is rectangular, square, circular, elliptical, or the like.
  • FIG. 11 is a cross-sectional structural diagram of still another embodiment of the electronic device of FIG. 1 along the line I-I.
  • the electronic device further includes a touch sensing module 40 that is located on the light exit side of the display screen 20, ie, above the display screen 20.
  • the touch sensing module 40 can also be integrated into the display device, so that the display device is a touch display screen with touch and display functions.
  • the touch sensing module 40 includes, for example, a capacitive sensing module, a resistive sensing module, an optical sensing module, a pressure sensing module, and the like, for detecting whether an object touches on the display screen 20, according to the detection result. It is possible to determine the touch position of an object on the display, the type of touch operation, and the like.
  • the control module 30 is further configured to: when the electronic device is in the interest screen state, provide a third driving signal to the touch sensing module 40, and drive the touch sensing module 40 to perform touch detection, when determining that there is an object touch in the predetermined display area,
  • the fingerprint identification module 10 provides a second driving signal, and drives the fingerprint identification module 10 to collect fingerprint information.
  • the difference between the embodiment of the present invention and the first embodiment described above is that when the electronic device is in the state of the interest screen, the touch sensing module 40 is still in an active state for detecting the touch operation on the display screen 20.
  • the control module 30 can determine whether there is an object touch and a touch position on the display screen according to the detection result of the touch sensing module 40, and further determine whether the touch position is located in the predetermined area, and then determine that there is an object touch in the predetermined area, otherwise the predetermined area is No objects are touched.
  • the fingerprint recognition module 10 is only awake when it is determined that there is an object touch in the predetermined display area to drive the fingerprint recognition module 10 to collect the fingerprint information. In this way, not only the power consumption when the electronic device is in the state of the screen is reduced, but also the fingerprint recognition module is kept in the working state, thereby prolonging the service life of the fingerprint recognition module.
  • the fingerprint recognition module 10 When it is determined that there is an object touch in the predetermined display area of the display screen 20, not only the fingerprint recognition module 10 is awakened, but also the predetermined display area of the display screen 20 is all illuminated.
  • the light signal emitted when the display screen is lit is used as the light source of the fingerprint recognition module to collect the fingerprint information. In this way, the fingerprint identification module can realize the collection of fingerprint information without additionally setting a light source, thereby further saving the cost of the fingerprint identification module.

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  • Theoretical Computer Science (AREA)
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Abstract

本实用新型公开了一种电子设备。该电子设备包括显示屏、与所述显示屏层叠设置、并位于所述显示屏的预定显示区域下方的指纹识别模块以及控制模块；所述显示屏的预定显示区域与所述指纹识别模块的有效识别区域对应；所述控制模块用于：在电子设备处于息屏状态时，提供第一驱动信号给所述显示屏，驱动所述预定显示区域内的k个显示像素分时点亮；以及提供第二驱动信号给所述指纹识别模块，驱动所述指纹识别模块采集指纹信息，其中，k为大于2的自然数。

Description

电子设备 技术领域
本实用新型涉及一种电子设备。
背景技术
随着智能手机的全面屏发展趋势，手机正面的屏占比越来越高，因此手机正面因为空间位置受限无法再设置其他组件，例如按键，指纹识别模组等。由于无法设置指纹识别模组，为了实现身份识别，业界提出了两种解决方案，第一种为现在相对比较成熟的技术，即将指纹识别模组放置于手机背面或侧面；第二种目前还处于理论研究阶段，即将指纹识别模组设置于显示屏内，例如放置于显示屏下方。
第二种解决方案虽然理论上能解决全面屏的身份识别问题，但是由于指纹识别模组位于显示屏的局部区域，使用者无法准确感知该区域，如此造成身份识别失败而使得手机无法解锁，因此影响使用者的使用。
实用新型内容
本实用新型实施方式旨在至少解决现有技术中存在的技术问题之一。为此，本实用新型实施方式需要提供一种电子设备。
本实用新型提供一种电子设备，包括显示屏、与所述显示屏层叠设置、并位于所述显示屏的预定显示区域下方的指纹识别模块以及控制模块；所述显示屏的预定显示区域与所述指纹识别模块的有效识别区域对应；所述控制模块用于：在电子设备处于息屏状态时，提供第一驱动信号给所述显示屏，驱动所述预定显示区域内的k个显示像素分时点亮；以及提供第二驱动信号给所述指纹识别模块，驱动所述指纹识别模块采集指纹信息，其中，k为大于2的自然数。
本实用新型实施方式在电子设备处于息屏状态时，通过点亮显示屏的预定显示区域，从而提示用户手指的触摸位置，而且当目标物体放置在该预定显示区域内时，处于工作状态的指纹识别模块就能采集到手指的指纹信息，从而快速进行身份识别。因此，本实用新型实施方式不但使得用户能准确地感知手指的触摸位置，而且还能快速进行身份识别，从而实现快速解锁。另外，由于该预定显示区域中的显示像素分时点亮，不但节省 了显示屏的待机功耗，而且还避免了同一显示像素长时间点亮，容易造成该显示像素老化的问题，提高了电子设备显示屏的使用寿命和使用效果。
在某些实施方式中，沿所述显示屏至所述指纹识别模块的层叠方向，所述显示屏的预定显示区域的投影落于所述指纹识别模块的有效识别区域之中，或与所述指纹识别模块的有效识别区域完全重合。如此，只要使用者手指位于该预定显示区域，即使偏离了点亮的区域，都能进行指纹信息的采集，从而提高了指纹采集效率。
在某些实施方式中，所述k个显示像素为所述显示屏的预定显示区域内的至少部分显示像素。
在某些实施方式中，所述控制模块用于控制所述k个显示像素中的部分显示像素同时点亮，其中，同时点亮的显示像素形成一图案。
在某些实施方式中，所述图案位于所述预定显示区域的中心位置。
在某些实施方式中，所述k个显示像素分成至少两组，且该至少两组显示像素轮流点亮。
在某些实施方式中，所述k个显示像素为预定显示区域边界位置处的显示像素。
在某些实施方式中，同时点亮的显示像素相邻设置或间隔设置。
在某些实施方式中，所述预定显示区域为长方形、正方形、圆形、椭圆形。
在某些实施方式中，所述电子设备进一步包括触摸传感模块，用于检测所述预定显示区域内是否有物体触摸；所述控制模块进一步用于：在电子设备处于息屏状态时，提供第三驱动信号给所述触摸传感模块，驱动所述触摸传感模块执行触摸检测，当确定所述预定显示区域内有物体触摸时，向所述指纹识别模块提供所述第二驱动信号，驱动所述指纹识别模块采集指纹信息。
本实用新型实施方式中，只有当确定预定显示区域内有物体触摸时，才唤醒指纹识别模块，以使指纹识别模块采集指纹信息。如此，不但降低电子设备息屏状态时的功耗，而且还避免了指纹识别模块一直处于工作状态，从而延长了指纹识别模块的使用寿命。
在某些实施方式中，所述控制模块进一步用于：当确定所述预定显示区域内有物体触摸时，控制显示屏的预定显示区域全部点亮，同时驱动所述指纹识别模块采集指纹信息。
本实用新型实施方式中，利用显示屏点亮时发出的光信号作为指纹识别模块的光源，来进行指纹信息的采集。如此，使得该指纹识别模块不需要额外设置光源，就能实现指纹信息的采集，从而进一步节省了指纹识别模块的成本。
在某些实施方式中，所述触摸传感模块与所述显示屏集成为触摸显示屏。
在某些实施方式中，所述指纹识别模块为指纹芯片，并位于所述显示屏的预定显示区域的下方。
在某些实施方式中，所述指纹识别模块包括光学式传感器、超声波传感器、电容式传感器。
本实用新型实施方式的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本实用新型实施方式的实践了解到。
附图说明
本实用新型实施方式的上述和/或附加的方面和优点从结合下面附图对实施方式的描述中将变得明显和容易理解，其中：
图1是本实用新型一实施方式的电子设备的正面结构示意图；
图2是图1中电子设备沿I-I线的一实施方式的剖面结构示意图；
图3是图1中电子设备沿I-I线的另一实施方式的剖面结构示意图；
图4是本实用新型一实施方式的电子设备的功能模块示意图；
图5是本实用新型一实施方式的电子设备中显示屏为OLED显示屏时的线路结构示意图；
图6是本实用新型的指纹识别模块的线路结构示意图；
图7是图6中一个指纹感测单元一实施方式的电路结构示意图；
图8是本实用新型的电子设备处于息屏状态下指纹输入图案一实施方式的显示示意图；
图9是本实用新型的电子设备处于息屏状态下指纹输入图案另一实施方式的显示示意图；
图10是本实用新型的电子设备处于息屏状态下指纹输入图案又一实施方式的显示示意图；
图11是图1中电子设备沿I-I线的又一实施方式的剖面结构示意图。
具体实施方式
下面详细描述本实用新型的实施方式，所述实施方式的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通 过参考附图描述的实施方式是示例性的，仅用于解释本实用新型，而不能理解为对本实用新型的限制。
在本实用新型的描述中，需要理解的是，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本实用新型的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。“接触”或“触摸”包括直接接触或间接接触。例如，下文中揭示的显示屏，其被设置在电子设备的保护盖板下方，则物体通过保护盖板间接接触该显示屏。
在本实用新型的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接或可以相互通信；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本实用新型中的具体含义。
下文的公开提供了许多不同的实施方式或例子用来实现本实用新型的不同结构。为了简化本实用新型的公开，下文中对特定例子的部件和设定进行描述。当然，它们仅仅为示例，并且目的不在于限制本实用新型。此外，本实用新型可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设定之间的关系。此外，本实用新型提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
进一步地，所描述的特征、结构可以以任何合适的方式结合在一个或更多实施方式中。在下面的描述中，提供许多具体细节从而给出对本实用新型的实施方式的充分理解。然而，本领域技术人员应意识到，没有所述特定细节中的一个或更多，或者采用其它的结构、组元等，也可以实践本实用新型的技术方案。在其它情况下，不详细示出或描述公知结构或者操作以避免模糊本实用新型。
本实用新型实施方式提出一种应用于屏内设有指纹识别模块的电子设备，且指纹识别模块的有效识别区域为电子设备的显示屏的局部显示区域。在需要对电子设备的使用者进行身份识别时，提示使用者将目标物体放置于该有效识别区域内，同时通过唤醒指纹识别模块，使得指纹识别模块采集使用者的指纹信息，并根据采集到的指纹信息对使用者进行身份识别，在识别成功后执行相应的操作，例如解锁、启动应用程序、进行支 付交易等等。
该电子设备例如但不局限为消费性电子产品、家居式电子产品、车载式电子产品、金融终端产品等合适类型的电子产品。其中，消费性电子产品如为手机、平板电脑、笔记本电脑、桌面显示器、电脑一体机等。家居式电子产品如为智能门锁、电视、冰箱、穿戴式设备等。车载式电子产品如为车载导航仪、车载DVD等。金融终端产品如为ATM机、自助办理业务的终端等。
在某些实施方式中，该指纹识别模块的有效识别区域例如位于显示屏的显示区域的下部、中部或上部。该有效识别区域的设置位置例如根据使用者方便操作的位置来设置，参照图1所示，图1是本实用新型一实施方式的电子设备的正面结构示意图。以电子设备为手机为例，在手机的显示区域S1上具有一预定显示区域S2，该预定显示区域S2与指纹识别模块的有效识别区域S3对应设置。该预定显示区域S2位于显示区域S1的中下位置，使得用户手持手机时，可以方便地使用大拇指进行指纹操作。
在某些实施方式中，指纹识别模块位于显示屏的预定显示区域S2的下方或上方，且沿显示屏至指纹识别模块的层叠方向，显示屏的预定显示区域S2的投影落于指纹识别模块的有效识别区域S3之中，或者与指纹识别模块的有效识别区域S3完全重合。如此，只要使用者手指位于该预定显示区域S2，即使偏离了该预定显示区域，都能进行指纹信息的采集，从而提高了指纹采集效率。参照图2，图2是图1中电子设备沿I-I线的一实施方式的剖面结构示意图。该电子设备1例如包括显示屏20以及指纹识别模块10，该指纹识别模块10例如为一指纹芯片，并位于显示屏20下方。显示屏20包括多个显示像素21，该每个显示像素21的发光区域一起形成显示屏20的显示区域。指纹识别模块10包括多个指纹感测单元11，该每个指纹感测单元11的感测区域一起形成指纹识别模块10的有效识别区域。以指纹感测单元11为感光单元为例，当手指放置于电子设备与物体的接触面，即显示屏20上方时，该显示屏20的显示像素21发出的光信号将到达手指，经过手指的反射后，穿过显示屏20并到达指纹识别模块10，指纹识别模块10对光信号进行感测并形成指纹图像。可以理解的是，该显示屏20上具有透光区域，供手指反射回的信号穿过。
在某些实施方式中，指纹识别模块的部分或全部集成于显示屏内部，并且该指纹识别模块的有效识别区域为显示屏的至少部分区域。如此，只要使用者手指位于该预定显示区域，即使偏离了该预定显示区域，都能进行指纹信息的采集，从而提高了指纹采集效率。参照图3，图3是图1中电子设备沿I-I线的另一实施方式的剖面结构示意图。该 电子设备1例如包括显示屏20以及指纹识别模块10。具体地，该显示屏20例如包括TFT阵列基板22，以及形成在TFT阵列基板22上的多个显示像素21。每个显示像素21的发光区域一起形成显示屏20的显示区域。该TFT阵列基板20上还设置多个指纹感测单元11，而且指纹感测单元11的数量小于所述显示像素21的数量。指纹感测单元11对应相邻的显示像素21之间的位置设置，而且指纹感测单元11两侧设有遮光墙23，以防止显示像素21发出的光信号直接被指纹感测单元11感测。以指纹感测单元11为感光单元为例，每个指纹感测单元11的感测区域一起形成指纹识别模块10的有效识别区域。当手指放置于显示屏20上方时，显示像素21发出的光信号到达手指后，经过手指的反射并到达指纹感测单元11，指纹感测单元11对光信号进行感测并形成指纹图像。
在某些实施方式中，该电子设备例如包括显示装置、触摸传感模块以及指纹识别模块。该显示装置例如包括OLED显示屏、LCD显示屏以及驱动该显示屏进行显示的显示驱动电路等。触摸传感模块可以独立设置并位于显示屏的出光侧，当然，该触摸传感模块也可以集成于显示屏中，使得显示屏为具有触控和显示功能的触摸显示屏。指纹识别模块例如包括指纹感测单元、驱动指纹感测单元感测指纹信息的指纹驱动电路、对指纹感测单元采集到的指纹信息进行处理的信号处理电路等等。
参照图4，图4是本实用新型一实施方式的电子设备的功能模块示意图。该电子设备100包括显示屏20，与显示屏20层叠设置的指纹识别模块10以及控制模块30。其中，控制模块30与显示屏20及指纹识别模块10电性连接，用于在电子设备处于息屏状态时，提供第一驱动信号给显示屏20，驱动预定显示区域内的k个显示像素分时点亮；以及提供第二驱动信号给指纹识别模块10，驱动指纹识别模块10采集指纹信息。k为大于2的自然数。
具体地，息屏状态是指电子设备的显示屏20处于熄灭状态，即未点亮状态。该息屏状态可以通过电子设备上的按键控制而进入，例如按压电子设备的电源键，可以使得电子设备进入息屏状态。当然，可替换地，当电子设备一段时间未被使用时，将自动进入息屏状态。当电子设备处于息屏状态时，将产生一息屏状态信号，控制模块30根据该息屏状态信号来判断电子设备是否处于息屏状态。控制模块30接收到该息屏状态信号时，则产生第一驱动信号和第二驱动信号。该第一驱动信号用于提供给显示驱动电路24，以驱动显示屏20中预定显示区域内的k个显示像素分时点亮。该第二驱动信号用于提供给指纹驱动电路12，以驱动多个指纹感测单元11形成的指纹感测阵列11＇采集指纹信息。
某实施方式中，在显示屏20的预定显示区域的显示像素中预先选择k个显示像素，k个显示像素为显示屏20的预定显示区域内的部分或所有显示像素。当电子设备处于息屏状态时，控制模块30控制显示屏20中的该预先选择的k个显示像素分时点亮。分时点亮是指，k个显示像素不同时点亮，即当前显示像素点亮预定时间后，切换至其他的显示像素点亮，当前显示像素熄灭。如此通过点亮的显示像素，对使用者的指纹输入操作起到很好的提示作用，而且由于该显示像素分时点亮，避免了同一显示像素长时间点亮，容易造成该显示像素老化的问题，提高了电子设备显示屏的使用寿命和使用效果。
在某些实施方式中，该k个显示像素为电子设备系统默认设置的显示像素。当然，也可以根据使用者的喜好设置相应的显示图案，从而使得电子设备根据设置好的图案从预定显示区域的显示像素选择相应的多个显示像素。
本实用新型实施方式在电子设备处于息屏状态时，通过点亮显示屏的预定显示区域，从而提示用户手指的触摸位置，而且当目标物体放置在该预定显示区域内时，处于工作状态的指纹识别模块就能采集到手指的指纹信息，从而快速进行身份识别。因此，本实用新型实施方式不但使得用户能准确地感知手指的触摸位置，而且还能快速进行身份识别，从而实现快速解锁。另外，由于该预定显示区域中的显示像素分时点亮，不但节省了显示屏的待机功耗，而且还避免了同一显示像素长时间点亮，容易造成该显示像素老化的问题，提高了电子设备显示屏的使用寿命和使用效果。
以显示屏为OLED显示屏为例，参照图5，图5是本实用新型的OLED显示屏的线路结构示意图。该显示屏包括呈交叉排列的第一扫描线组和第一数据线组。例如多条第一扫描线沿G11、G12…G1m沿Y1方向间隔布设；多条第一数据线S11、S12…S1n沿X1方向间隔布设。然，可变更地，该多条第一数据线和多条第一扫描线不限定于图5中示出的垂直设置，也可以呈一定角度的设置，例如30°、60°等。交叉排列的第一扫描线和第一数据线界定出多个呈阵列排列的显示像素21。
需要说明的是，上述第一扫描线组和第一数据线组的分布以及数量的设置并不局限于上述例举的实施方式，可以根据显示像素21的结构的不同而对应设置相应的扫描线组和数据线组。
每个显示像素21包括至少一薄膜晶体管TFT和至少一发光二极管D1。例如，薄膜晶体管TFT的栅极对应与第一扫描线电性连接，薄膜晶体管TFT的源极对应与第一数据线电性连接。通过第一扫描线和第一数据线提供相应的控制信号，则可以控制发光二极管D1点亮以及显示亮度、显示颜色等等。由于每个显示像素的发光二极管D1能通 过薄膜晶体管TFT单独控制，因此通过相应的控制能实现单个显示像素点亮或者多个显示像素同时点亮。
多条第一扫描线和多条第一数据线连接于显示驱动电路24，显示驱动电路24在接收到控制模块30提供的第一驱动信号时，向第一扫描线和第一数据线提供相应的控制信号，以控制预定显示区域内的k个显示像素分时点亮。该显示驱动电路24例如包括移位寄存器电路、时序控制电路等等。
进一步地，指纹识别模块10例如包括光学式传感模块、电容式传感模块、超声波式传感模块，当手指触摸显示屏20的显示区域时，指纹识别模块10对该手指的指纹信息进行感测，并根据感测到的指纹信息进行身份识别。以光学式传感模块为例，光源发出光信号并达到手指，经过手指谷和脊的反射后，反射回来的光被光学式传感模块感测，并形成手指的指纹图像。该光源可以为光学式传感模块自带的光源或者显示屏。
参照图6，图6是本实用新型的指纹识别模块的线路结构示意图。该指纹识别模块10包括呈交叉排列的第二扫描线组和第二数据线组。例如多条第二扫描线沿G21、G22…G2m沿Y2方向间隔布设；多条第二数据线S21、S22…S2n沿X2方向间隔布设。然，可变更地，该多条第二数据线和多条第二扫描线不限定于图6中示出的垂直设置，也可以呈一定角度的设置，例如30°、60°等。交叉排列的多条第二扫描线和多条第二数据线界定出多个呈阵列排列的指纹感测单元11。
需要说明的是，上述第二扫描线组和第二数据线组的分布以及数量的设置并不局限于上述例举的实施方式，可以根据指纹感测单元11的结构的不同而对应设置相应的扫描线组和数据线组。
参照图7，图7是图6中一个指纹感测单元一实施方式的电路结构示意图。该指纹感测单元11以感光单元为例，每个指纹感测单元11包括至少一感光器件110和开关器件111。该开关器件111具有一控制端C以及两信号端。其中，开关器件111的控制端C与第二扫描线G2m连接，开关器件111的一信号端经感光器件110连接一参考信号L，开关器件111的另一信号端与第二数据线S2n连接。需要说明的是，图7示出的指纹感测单元11仅用于举例说明，并不限于指纹感测单元11的其他组成结构。
具体地，上述感光器件110例如但不限于光敏二极管、光敏三极管、光电二极管、光电阻、薄膜晶体管的任意一个或几个。以光电二极管为例，通过在光电二极管的两端施加负向电压，此时，若光电二极管接收到光信号时，将产生与光信号成一定比例关系的光电流，接收到的光信号强度越大，产生的光电流则越大，光电二极管负极上的电压 下降的速度也就越快，因此通过采集光电二极管负极上的电压信号，从而获得目标物体不同部位反射的光信号强度，进而获得目标物体的生物特征信息。可以理解的是，若要增大感光器件110的感光效果，则设置多个感光器件110。
进一步地，开关器件111例如但不限于三极管、MOS管、薄膜晶体管中的任意一个或几个。当然，该开关器件111也可以包括其他类型的器件，数量也可以为2个、3个等。
多条第二扫描线均连接于一指纹驱动电路12，多条第二数据线均连接于一信号处理电路13。指纹驱动电路12用于在接收到控制模块30提供的第二驱动信号时，产生扫描信号，并通过对应的扫描线传输给相应的指纹感测单元11，以驱动指纹感测单元11执行光感测。信号处理电路13通过第二数据线接收相应的指纹感测单元11执行光感测而产生的电信号，并根据该电信号来获取手指的指纹信息。该指纹驱动电路例如包括移位寄存器电路、时序控制电路等等。信号处理电路例如包括放大电路、比较电路等等。
需要说明的是，上述指纹识别模块10并不限于图中示出的结构，例如用于设置感光单元的衬底。其中上述指纹驱动电路12和信号处理电路13可选择形成在该衬底上，也可以选择例如通过连接件(例如柔性电路板)与第二扫描线、第二数据线电性连接。
在某些实施方式中，k个显示像素将分成至少两组，且该至少两组显示像素轮流点亮。本实用新型实施方式中，预先将k个显示像素分成两组或多组，通过控制模块30控制该多组显示像素之间按顺序依次切换点亮。
在某些实施方式中，控制模块30用于控制k个显示像素中的部分显示像素同时点亮，其中，同时点亮的显示像素形成一相应的图案，而且该图案可以相同，也可以不同。一实施方式中，该图案大致位于预定显示区域的中心位置，从而使得使用者的手指位于该图案上时，能实现指纹信息准确地采集。如图8所示，图8是本实用新型的电子设备处于息屏状态下指纹输入图案一实施方式的显示示意图。需要说明的是，图8中，显示屏的显示区域除预定显示区域S2内的指纹输入图案为点亮状态，其余位置均为熄灭状态，而且预定显示区域S2也不显示，这里仅仅为了用于说明预定显示区域与指纹输入图案的位置关系。图8中指纹输入图案大致位于预定显示区域S2的中心位置，而且每隔预定时间，该指纹输入图案的显示位置会发生小范围的移动，由于是小范围的移动，因此使用者体验几乎不受影响。而且，通过小范围移动的指纹输入图案，避免了该显示屏预定显示区域S2内中的同一显示像素长时间点亮，容易造成该显示像素老化的问题，提高了电子设备显示屏的使用寿命和使用效果。
如图9所示，图9是本实用新型的电子设备处于息屏状态下指纹输入图案另一实施方式的显示示意图。需要说明的是，图9中，显示屏的显示区域除预定显示区域S2内的指纹输入图案为点亮状态，其余位置均为熄灭状态，而且预定显示区域S2也不显示，这里仅仅为了用于说明预定显示区域与指纹输入图案的位置关系。图9中指纹输入图案位于预定显示区域内，且每隔预定时间，该指纹输入图案的显示位置会发生移动。另外，相邻两次显示的指纹输入图案不重叠，由此避免了指纹输入图案的显示像素长时间点亮，容易造成该显示像素老化的问题，提高了电子设备显示屏的使用寿命和使用效果。
如图10所示，图10是本实用新型的电子设备处于息屏状态下指纹输入图案又一实施方式的显示示意图。需要说明的是，图10中显示屏的显示区域除预定显示区域S2内的指纹输入图案为点亮状态，其余位置均为熄灭状态。图10中指纹输入图案为预定显示区域S2的边界位置，而且该预定显示区域边界位置处的多个显示像素划分为多组，每一组显示像素点亮时形成相应的指纹输入图案。当电子设备处于息屏状态时，每隔预定时间，该多组指纹输入图案之间进行切换，如图10左边页面中图案与图10右边页面中图案进行交替显示。通过该指纹输入图案，界定出预定显示区域，以此提示使用者将手指放置于该预定显示区域内，即可进行电子设备的解锁操作。该指纹输入图案的显示，避免了同一显示像素长时间点亮，容易造成该显示像素老化的问题，提高了电子设备显示屏的使用寿命和使用效果。
需要说明的是，上述仅为举例说明指纹输入图案的显示方式，并不局限于本实用新型请求保护的范围。只要基于同一显示像素间歇点亮的核心思想下，进行地各种变形结构以及方式，均在本实用新型的保护范围。例如，由于显示屏的显示像素之间的像素间距非常小，因此在进行指纹输入图案的显示时，控制指纹输入图案的显示像素间隔点亮，如此既能显示该指纹输入图案，又避免了同一显示像素长时间点亮，容易造成该显示像素老化的问题，提高了电子设备显示屏的使用寿命和使用效果。
在某些实施方式中，同时点亮的显示像素相邻设置或间隔设置。
在某些实施方式中，预定显示区域为长方形、正方形、圆形、椭圆形等形状。
进一步地，参照图11，图11是图1中电子设备沿I-I线的又一实施方式的剖面结构示意图。该电子设备进一步包括触摸传感模块40，该触摸传感模块40位于显示屏20的出光侧，即显示屏20的上方。当然，该触摸传感模块40也可以集成于显示装置，使得该显示装置为具有触控和显示功能的触摸显示屏。该触摸传感模块40例如包括电容式传感模块、电阻式传感模块、光学式传感模块、压力式传感模块等等，用于检测显示 屏20上是否有物体触摸，根据该检测结果能确定显示屏上物体的触摸位置以及触摸操作类型等等。
控制模块30进一步用于：在电子设备处于息屏状态时，提供第三驱动信号给触摸传感模块40，驱动触摸传感模块40执行触摸检测，当确定预定显示区域内有物体触摸时，向指纹识别模块10提供第二驱动信号，驱动指纹识别模块10采集指纹信息。
本实用新型实施方式与上述第一实施方式的区别在于：当电子设备处于息屏状态时，触摸传感模块40仍处于工作状态，用于对显示屏20上的触摸操作进行检测。控制模块30根据触摸传感模块40的检测结果，可以确定显示屏上是否有物体触摸以及触摸位置，进一步判断触摸位置是否位于预定区域内，是则确定预定区域内有物体触摸，否则预定区域内没有物体触摸。只有当确定预定显示区域内有物体触摸时，才唤醒指纹识别模块10，以驱动指纹识别模块10采集指纹信息。如此，不但降低电子设备息屏状态时的功耗，而且还避免了指纹识别模块一直处于工作状态，从而延长了指纹识别模块的使用寿命。
当确定显示屏20的预定显示区域内有物体触摸时，不但唤醒指纹识别模块10，同时还控制显示屏20的预定显示区域全部点亮。本实用新型实施方式中，利用显示屏点亮时发出的光信号作为指纹识别模块的光源，来进行指纹信息的采集。如此，使得该指纹识别模块不需要额外设置光源，就能实现指纹信息的采集，从而进一步节省了指纹识别模块的成本。
在本说明书的描述中，参考术语“一个实施方式”、“某些实施方式”、“示意性实施方式”、“示例”、“具体示例”、或“一些示例”等的描述意指结合所述实施方式或示例描述的具体特征、结构、材料或者特点包含于本实用新型的至少一个实施方式或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施方式或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施方式或示例中以合适的方式结合。
尽管上面已经示出和描述了本实用新型的实施方式，可以理解的是，上述实施方式是示例性的，不能理解为对本实用新型的限制，本领域的普通技术人员在本实用新型的范围内可以对上述实施方式进行变化、修改、替换和变型。

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  1. 一种电子设备，其特征在于：包括显示屏、与所述显示屏层叠设置、并位于所述显示屏的预定显示区域下方的指纹识别模块以及控制模块；所述显示屏的预定显示区域与所述指纹识别模块的有效识别区域对应；所述控制模块用于：在电子设备处于息屏状态时，提供第一驱动信号给所述显示屏，驱动所述预定显示区域内的k个显示像素分时点亮；以及提供第二驱动信号给所述指纹识别模块，驱动所述指纹识别模块采集指纹信息，其中，k为大于2的自然数。
  2. 如权利要求1所述的电子设备，其特征在于：沿所述显示屏至所述指纹识别模块的层叠方向，所述显示屏的预定显示区域的投影落于所述指纹识别模块的有效识别区域之中，或与所述指纹识别模块的有效识别区域完全重合。
  3. 如权利要求1所述的电子设备，其特征在于：所述k个显示像素为所述显示屏的预定显示区域内的至少部分显示像素。
  4. 如权利要求1所述的电子设备，其特征在于：所述控制模块用于控制所述k个显示像素中的部分显示像素同时点亮，其中，同时点亮的显示像素形成一图案。
  5. 如权利要求4所述的电子设备，其特征在于：所述图案位于所述预定显示区域的中心位置。
  6. 如权利要求1所述的电子设备，其特征在于：所述k个显示像素分成至少两组，且该至少两组显示像素轮流点亮。
  7. 如权利要求1所述的电子设备，其特征在于：所述k个显示像素为所述预定显示区域边界位置处的显示像素。
  8. 如权利要求4所述的电子设备，其特征在于：同时点亮的显示像素相邻设置或间隔设置。
  9. 如权利要求1所述的电子设备，其特征在于：所述预定显示区域为长方形、正方形、圆形、椭圆形。
  10. 如权利要求1所述的电子设备，其特征在于：所述电子设备进一步包括触摸传感模块，用于检测所述预定显示区域内是否有物体触摸；所述控制模块进一步用于：在电子设备处于息屏状态时，提供第三驱动信号给所述触摸传感模块，驱动所述触摸传感模块执行触摸检测，当确定所述预定显示区域内有物体触摸时，向所述指纹识别模块提供所述第二驱动信号，驱动所述指纹识别模块采集指纹信息。
  11. 如权利要求10所述的电子设备，其特征在于：所述控制模块进一步用于：当确定所述预定显示区域内有物体触摸时，控制显示屏的预定显示区域全部点亮，同时驱动所述指纹识别模块采集指纹信息。
  12. 如权利要求10所述的电子设备，其特征在于：所述触摸传感模块与所述显示屏集成为触摸显示屏。
  13. 如权利要求1-12中任意一项所述的电子设备，其特征在于：所述指纹识别模块为指纹芯片，并位于所述显示屏的预定显示区域的下方。
  14. 如权利要求1所述的电子设备，其特征在于：所述指纹识别模块包括光学式传感器、超声波传感器、电容式传感器。
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