WO2020077505A1 - Appareil de reconnaissance d'empreintes digitales sous affichage et dispositif électronique - Google Patents

Appareil de reconnaissance d'empreintes digitales sous affichage et dispositif électronique Download PDF

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Publication number
WO2020077505A1
WO2020077505A1 PCT/CN2018/110297 CN2018110297W WO2020077505A1 WO 2020077505 A1 WO2020077505 A1 WO 2020077505A1 CN 2018110297 W CN2018110297 W CN 2018110297W WO 2020077505 A1 WO2020077505 A1 WO 2020077505A1
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WO
WIPO (PCT)
Prior art keywords
fingerprint
liquid crystal
crystal panel
light
display area
Prior art date
Application number
PCT/CN2018/110297
Other languages
English (en)
Chinese (zh)
Inventor
李顺展
青小刚
何毅
Original Assignee
深圳市汇顶科技股份有限公司
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 深圳市汇顶科技股份有限公司 filed Critical 深圳市汇顶科技股份有限公司
Priority to PCT/CN2018/110297 priority Critical patent/WO2020077505A1/fr
Priority to CN201880002094.2A priority patent/CN109496314B/zh
Priority to PCT/CN2019/087105 priority patent/WO2020077994A1/fr
Priority to CN201920706840.8U priority patent/CN210038812U/zh
Priority to CN201980002794.6A priority patent/CN110730967A/zh
Publication of WO2020077505A1 publication Critical patent/WO2020077505A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor
    • G06V40/1324—Sensors therefor by using geometrical optics, e.g. using prisms
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display

Definitions

  • Embodiments of the present application relate to the field of off-screen fingerprint recognition, and more specifically, to an off-screen fingerprint recognition device and electronic equipment.
  • off-screen fingerprint recognition is mainly applied to organic light-emitting diode (OLED) screens.
  • OLED organic light-emitting diode
  • the principle is that the fingerprint recognition module under the OLED screen uses the light-transmitting characteristics of the OLED screen itself to receive The reflected light formed by the reflection of the finger detects the fingerprint.
  • the backlight module of the LCD screen is opaque. Therefore, the fingerprint recognition scheme under the OLED screen is not suitable for the LCD screen.
  • the embodiments of the present application provide an off-screen fingerprint recognition device and electronic equipment, which can be applied to the off-screen fingerprint recognition of an LCD screen.
  • an under-screen fingerprint identification device which is applied to an electronic device having a backlight module and a liquid crystal panel.
  • the backlight module is located below the liquid crystal panel.
  • the liquid crystal panel includes a display area and a non-display panel.
  • the under-screen fingerprint recognition device further includes a light-emitting unit and a control unit, the light-emitting unit is located below the non-display area of the liquid crystal panel, and the control unit is used to control the light emission
  • the unit emits an optical signal to the fingerprint detection area; the fingerprint sensor is also used to receive the optical signal emitted by the light emitting unit and reflected by the finger above the fingerprint detection area, and generate a light signal based on the received optical signal Describe the fingerprint information of the finger.
  • control unit is configured to control the light-emitting unit to emit an optical signal to the fingerprint detection area when the liquid crystal panel is in a screen-off state.
  • the light-emitting unit is disposed obliquely with respect to the liquid crystal panel, so that the light-emitting angle of the light-emitting unit is aligned with the fingerprint detection area.
  • the inclination angle of the light emitting unit is greater than or equal to 0 ° and less than or equal to 60 °.
  • the inclination angle of the light emitting unit is greater than or equal to 30 ° and less than or equal to 45 °.
  • the non-display area includes a first target position opposite to the position of the light-emitting unit, and the first target position is located at the center of the fingerprint detection area along the The position extending in the longitudinal direction.
  • the light-emitting unit includes a first light-emitting unit and a second light-emitting unit
  • the non-display area includes a second target opposite to a location of the first light-emitting unit and the second light-emitting unit Position
  • the second target position is located on both sides of the position where the center position of the fingerprint detection area extends along the longitudinal direction of the liquid crystal panel.
  • control unit is further configured to control the light signal emitted by the light emitting unit to be synchronized with the light signal reflected by the fingerprint sensor received by the fingerprint sensor.
  • the under-screen fingerprint recognition device further includes: a mirror, located under the non-display area of the liquid crystal panel, for reflecting the optical signal reflected by the finger; an optical lens, located at the Below the non-display area of the liquid crystal panel, for focusing the optical signal reflected by the mirror to the fingerprint sensor; the photosensitive surface of the fingerprint sensor faces the reflective surface of the mirror The optical signal focused by the lens generates fingerprint information of the finger.
  • the photosensitive surface of the fingerprint sensor faces away from the liquid crystal panel
  • the reflective surface of the mirror faces the photosensitive surface of the fingerprint sensor
  • the optical lens stands sideways for receiving the The optical signal reflected by the mirror.
  • the non-display area includes a third target position opposite to the positions of the mirror and the fingerprint sensor, and the third target position is located along the center of the fingerprint detection area
  • the liquid crystal panel extends in a longitudinal direction.
  • the angle between the optical axis of the optical lens and the liquid crystal panel is 0-30 °.
  • the angle between the optical axis of the optical lens and the liquid crystal panel is 15 °.
  • an under-screen fingerprint identification device for use in an electronic device having a backlight module and a liquid crystal panel.
  • the backlight module is located below the liquid crystal panel.
  • the liquid crystal panel includes a display area and a non-display panel.
  • a display area, a fingerprint detection area is provided on the display area, and the under-screen fingerprint recognition device includes: a light emitting unit for setting below the non-display area of the liquid crystal panel; a control unit for controlling the light emitting unit Emit a light signal to the fingerprint detection area; a fingerprint sensor is arranged below the non-display area of the liquid crystal panel, and receives the light signal emitted by the light emitting unit and reflected by the finger above the fingerprint detection area And generate fingerprint information of the finger according to the received optical signal.
  • an electronic device including: a liquid crystal panel including a display area and a non-display area, a fingerprint detection area is provided on the display area; a backlight module is located below the liquid crystal panel; a fingerprint sensor, Located under the non-display area of the liquid crystal panel, it is used to receive the optical signal emitted by the backlight module and reflected by the finger above the fingerprint detection area, and generate the finger's light according to the received optical signal Fingerprint information.
  • the electronic device further includes a light-emitting unit and a control unit, the light-emitting unit is located below the non-display area of the liquid crystal panel, and the control unit is configured to control the light-emitting unit to
  • the fingerprint detection area emits an optical signal; the fingerprint sensor is also used to receive the light signal emitted by the light emitting unit and reflected by the finger above the fingerprint detection area, and generate the finger's light according to the received optical signal Fingerprint information.
  • control unit is configured to control the light-emitting unit to emit an optical signal to the fingerprint detection area when the liquid crystal panel is in a screen-off state.
  • the light-emitting unit is disposed obliquely with respect to the liquid crystal panel, so that the light-emitting angle of the light-emitting unit is aligned with the fingerprint detection area.
  • the inclination angle of the light emitting unit is greater than or equal to 0 ° and less than or equal to 60 °.
  • the inclination angle of the light emitting unit is greater than or equal to 30 ° and less than or equal to 45 °.
  • the non-display area includes a first target position opposite to the position of the light-emitting unit, and the first target position is located at the center of the fingerprint detection area along the The position extending in the longitudinal direction.
  • the light-emitting unit includes a first light-emitting unit and a second light-emitting unit
  • the non-display area includes a second target opposite to a location of the first light-emitting unit and the second light-emitting unit Position
  • the second target position is located on both sides of the position where the center position of the fingerprint detection area extends along the longitudinal direction of the liquid crystal panel.
  • control unit is further configured to control the light signal emitted by the light emitting unit to be synchronized with the light signal reflected by the fingerprint sensor received by the fingerprint sensor.
  • the electronic device further includes: a reflector, located under the non-display area of the liquid crystal panel, for reflecting the optical signal reflected by the finger; an optical lens, located in the liquid crystal panel Below the non-display area for focusing the optical signal reflected by the mirror to the fingerprint sensor; the photosensitive surface of the fingerprint sensor faces the reflecting surface of the mirror for focusing according to the optical lens The optical signal generates fingerprint information of the finger.
  • the angle between the optical axis of the optical lens and the liquid crystal panel is 0-30 °.
  • the angle between the optical axis of the optical lens and the liquid crystal panel is 15 °.
  • an electronic device including: a liquid crystal panel including a display area and a non-display area, a fingerprint detection area is provided on the display area; a backlight module is located below the liquid crystal panel; a light emitting unit, It is located below the non-display area of the liquid crystal panel; a control unit is used to control the light emitting unit to emit light signals to the fingerprint detection area; a fingerprint sensor is located below the non-display area of the liquid crystal panel for receiving The light signal emitted by the light emitting unit and reflected by the finger above the fingerprint detection area, and generates fingerprint information of the finger according to the received light signal.
  • the fingerprint sensor is arranged below the non-display area of the liquid crystal panel, while the fingerprint detection area is still located in the liquid crystal panel Display area.
  • the fingerprint sensor After the light signal emitted by the backlight module is reflected by the finger above the fingerprint detection area, it does not need to pass through the backlight module and is received by the fingerprint sensor, thereby realizing fingerprint image collection and fingerprint recognition, and enabling the display screen with the backlight module to Realize off-screen fingerprint recognition.
  • placing the fingerprint sensor below the non-display area of the liquid crystal panel will not affect the display effect of the screen.
  • FIG. 1 is a schematic diagram of an application scenario of off-screen fingerprint recognition provided by an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a backlight module provided by an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of an electronic device applied to a conventional off-screen fingerprint identification device provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of an off-screen fingerprint identification device provided by an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of another off-screen fingerprint identification device provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of another off-screen fingerprint recognition device provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of another off-screen fingerprint recognition device provided by an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of another off-screen fingerprint recognition device provided by an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of another off-screen fingerprint recognition device provided by an embodiment of the present application.
  • FIG. 10 is a schematic flowchart of a fingerprint registration method provided by an embodiment of the present application.
  • FIG. 11 is a schematic flowchart of a fingerprint recognition method provided by an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of another off-screen fingerprint identification device provided by an embodiment of the present application.
  • the embodiments of the present application can be applied to fingerprint systems, including but not limited to optical, ultrasonic or other fingerprint recognition systems and medical diagnostic products based on optical, ultrasonic or other fingerprint imaging.
  • the embodiments of the present application only use optical fingerprint systems as an example for description. However, it should not constitute any limitation to the embodiments of the present application, and the embodiments of the present application are also applicable to other systems that use optical, ultrasonic, or other imaging technologies.
  • the technical solutions in the embodiments of the present application can also perform other biometric identification, for example, living body identification, etc., which is not limited in the embodiments of the present application.
  • the technical solutions of the embodiments of the present application can be applied to various electronic devices, and more specifically, can be applied to electronic devices with display screens.
  • portable or mobile computing devices such as smartphones, laptops, tablets, game devices, and other electronic devices such as electronic databases, automobiles, automated bank teller machines (ATM), etc., but this embodiment of the present application is not limited to this .
  • the fingerprint collection device may be specifically an optical fingerprint device, which may be disposed in a partial area or all areas under the display screen, thereby forming an under-display optical fingerprint system.
  • FIG. 1 is a schematic structural diagram of a terminal device to which an off-screen fingerprint identification device can be applied.
  • the terminal device 100 includes a display screen 120 and a fingerprint identification device 130, where the fingerprint identification device 130 is disposed in a partial area below the display screen 120.
  • the fingerprint recognition device 130 includes a sensing array having a plurality of optical sensing units, and the area where the sensing array is located is a fingerprint detection area 103 of the fingerprint recognition device 130.
  • the display screen 120 may include a display area 102 and a non-display area 105.
  • the fingerprint detection area 103 is located in the display area 102 of the display screen 120. Therefore, the user needs to unlock the terminal device Or during other fingerprint verifications, you only need to press your finger on the fingerprint detection area 103 located on the display screen 120 to implement fingerprint input. Since fingerprint detection can be implemented in the screen, the terminal device 100 adopting the above structure does not need a special reserved space on the front to set fingerprint keys (such as the Home key), so a full screen solution can be adopted, that is, the display area of the display screen 120 This basically extends to the entire front of the terminal device 100.
  • the display screen 120 may be a liquid crystal display (LCD) or other passive light-emitting display screen.
  • LCD liquid crystal display
  • the display screen 120 may specifically be a touch screen display, which can not only display images, but also detect a user's touch or press operation, thereby providing the user with a human-computer interaction interface.
  • the terminal device 100 may include a touch sensor, and the touch sensor may specifically be a touch panel (TP), which may be provided on the surface of the display screen 120, or may be partially integrated Or the whole is integrated into the display screen 120 to form the touch display screen.
  • TP touch panel
  • the terminal device 100 further includes a transparent protective cover, which may be a glass cover or a sapphire cover, which is located above the display screen 120 and covers the front of the terminal device 100 .
  • a transparent protective cover which may be a glass cover or a sapphire cover, which is located above the display screen 120 and covers the front of the terminal device 100 .
  • the so-called finger pressing on the display screen 120 may actually refer to pressing a cover plate above the display screen 120 or a protective layer surface covering the cover plate.
  • the fingerprint recognition device 130 includes at least one light detection part 134 and an optical component 132, the light detection part 134 includes the sensing array and a reader electrically connected to the sensing array
  • the circuit and other auxiliary circuits can be fabricated on a die by a semiconductor process; the optical component 132 can be disposed above the sensing array of the light detection portion 134, which can specifically include a filter,
  • the light guide layer and other optical elements can be used to filter out ambient light penetrating the finger, and the light guide layer is mainly used to guide the reflected light reflected from the finger surface to the sensing array for optical detection.
  • the multiple optical components 132 and the at least one light detection portion 134 may be packaged in the same optical fingerprint chip.
  • the light guide layer may specifically be a lens layer made of semiconductor silicon wafer, which has a plurality of lens units, and the reflected light reflected from the finger passes through the lens unit and is passed by the optical sensing unit below Receive, according to this, the sensor array can detect the fingerprint image of the finger.
  • the embodiments of the present application may be applied to an electronic device having one fingerprint identification device and a fingerprint detection area, or may be applied to an electronic device having multiple fingerprint identification devices and a plurality of fingerprint detection areas.
  • the optical sensor may also be referred to as an image sensor (sensor), a photoelectric sensor, or a fingerprint sensor, which may be processed into a chip (DIE) through semiconductor processing, that is, the DIE includes an image sensor.
  • DIE chip
  • the optical sensor in the embodiments of the present application may also be referred to as an optical fingerprint device, an optical fingerprint recognition module, a fingerprint device, a fingerprint recognition device, a fingerprint recognition module, a fingerprint module, a fingerprint collection device, and so on.
  • the current off-screen fingerprint recognition technology is basically applied to self-luminous mobile phone screens such as OLED or active matrix organic light-emitting diodes (active-matrix OLED, AMOLED).
  • OLED active matrix organic light-emitting diodes
  • AMOLED active-matrix organic light-emitting diodes
  • LCD screens are quite different from OLED screens. LCD screens use a backlight module to provide the light source. The light emitted by the backlight module can display images on the liquid crystal panel.
  • the liquid crystal panel 210 may include a glass cover 230 and a thin film transistor (TFT) liquid crystal 240.
  • the backlight module 220 may include a brightness enhancement film 250, a uniform light film 260, a light guide plate 270, a reflection film 280, and a steel plate reinforcement 290.
  • each film layer of the backlight module is shown in Table 1.
  • Figure 3 is a schematic diagram of the structure of the LCD screen.
  • the light signal emitted by the backlight module 320 can pass through the liquid crystal panel 310 to reach the finger, and the light signal reflected by the finger can reach the backlight module 320.
  • the light reflected by the finger cannot penetrate the backlight module and cannot be received by the fingerprint recognition module 330 at the bottom of the screen, so the optical signal detection circuit of the fingerprint under the screen cannot be formed .
  • the optical signal reflected by the finger has a very large energy loss in the process of being transmitted to the fingerprint recognition module, which further leads to failure to realize fingerprint recognition. That is, the fingerprint recognition scheme under the OLED screen is not suitable for the LCD screen.
  • the LCD screen cannot use the under-screen fingerprint structure of the OLED screen or the AMOLED screen for fingerprint recognition. How to perform the under-screen fingerprint recognition on the LCD screen has become an urgent technical problem to be solved.
  • An embodiment of the present application provides an off-screen fingerprint recognition device, as shown in FIG. 4, so that an electronic device with a backlight module can realize off-screen fingerprint recognition.
  • the under-screen fingerprint recognition device provided by the embodiment of the present application is applied to an electronic device having a backlight module 420 and a liquid crystal panel 430, and the backlight module 420 is located below the liquid crystal panel 430.
  • the liquid crystal panel 430 includes a display area and a non-display area, and a fingerprint detection area 440 is provided on the display area of the liquid crystal panel 430.
  • the off-screen fingerprint recognition device may include a fingerprint sensor 410.
  • the fingerprint sensor 410 is arranged below the non-display area of the liquid crystal panel 430, and receives the optical signal emitted by the backlight module 420 and reflected by the finger above the fingerprint detection area 440, and according to the received optical signal Generate finger fingerprint information.
  • the fingerprint detection area 440 may be a fixed position of the display area on the liquid crystal panel, or may extend to the entire display area of the liquid crystal panel, which is not specifically limited in the embodiments of the present application.
  • the fingerprint sensor 410 under the liquid crystal panel 430 may be a single fingerprint sensor or multiple fingerprint sensors, and the multiple fingerprint sensors may be used to receive light signals reflected by fingers of different fingerprint detection areas on the liquid crystal panel.
  • the liquid crystal panel may be a liquid crystal panel of an LCD screen or another liquid crystal panel of a passive light-emitting display, which is not limited in the embodiments of the present application.
  • the fingerprint sensor is located below the liquid crystal panel, and it can be understood that the fingerprint sensor is located below the glass cover.
  • the fingerprint sensor Since the fingerprint sensor is located under the liquid crystal panel, not under the backlight module, the optical signal reflected by the finger received by the fingerprint sensor does not need to pass through the backlight module. Therefore, the fingerprint sensor can receive the optical signal reflected by the finger to perform the fingerprint Identify. In addition, the fingerprint sensor is placed under the non-display area of the liquid crystal panel, and will not affect the display effect of the screen.
  • the technical solution provided by the embodiment of the present application does not need to change the backlight structure and backlight film layer of the display screen with a backlight module, and the fingerprint sensor is arranged below the non-display area of the liquid crystal panel, while the fingerprint detection area is still located on the liquid crystal panel Display area. After the light signal emitted by the backlight module is reflected by the finger above the fingerprint detection area, it does not need to pass through the backlight module and is received by the fingerprint sensor, thereby realizing fingerprint image collection and fingerprint recognition, and enabling the display screen with the backlight module to Realize off-screen fingerprint recognition.
  • the electronic device may refer to the mobile phone
  • the non-display area may refer to the chin position of the mobile phone
  • the fingerprint sensor may be disposed below the liquid crystal panel at the chin position of the mobile phone.
  • the off-screen fingerprint recognition device may further include a light-emitting unit and a control unit, as shown in FIG. 5.
  • the light emitting unit 450 may be located below the non-display area of the liquid crystal panel 430, and the control unit may control the light emitting unit 450 to emit an optical signal to the fingerprint detection area 440.
  • control unit controlling the light emitting unit 450 to emit light signals may refer to that when the fingerprint collection is required, that is, whether the current liquid crystal panel is in a bright screen state or a screen off state, the control unit may control the light emitting unit 450 to emit light signals.
  • control unit may control the light-emitting unit 450 to emit an optical signal when the liquid crystal panel is in the off-screen state.
  • the light source required for fingerprint identification can be provided by the backlight module.
  • the fingerprint sensor may receive the light signal emitted by the light emitting unit and reflected by the finger above the fingerprint detection area, and generate fingerprint information of the finger according to the received light signal.
  • a light-emitting unit is provided to enhance the optical signal reflected by the finger, so that the optical signal reflected by the finger received by the fingerprint sensor increases, and the sensitivity of fingerprint recognition can be improved.
  • the light-emitting unit in the embodiment of the present application can independently emit light, and can provide a light source for fingerprint recognition when the electronic device is in the screen-off state, to the fingerprint detection area Emit an optical signal. Therefore, fingerprint recognition can be realized even when the electronic device is in the off-screen state.
  • the light signal emitted by the light source may be a visible light signal or an invisible light signal.
  • the invisible light signal may be an infrared light signal, for example.
  • the infrared light signal has strong penetrating power, is invisible, and does not affect the displayed image, and can be used as a preferred light signal.
  • the fingerprint sensor may receive the optical signal reflected by the finger emitted by the backlight module, or may receive the optical signal reflected by the finger emitted by the light emitting unit, or may simultaneously receive the light emitted by the backlight module and the light emitting unit The light signal reflected by the finger.
  • the light emitting unit may be arranged parallel to the liquid crystal panel, or may be arranged obliquely, so that the light emitting angle of the light emitting unit is aligned with the fingerprint detection area. In this way, more optical signals can be reached to the finger above the fingerprint detection area, the luminous efficiency is improved, and the sensitivity of fingerprint recognition is improved.
  • the inclination angle of the light emitting unit may be, for example, within a range of 0 ° or more and 60 ° or less.
  • the tilt angle may refer to the angle between the light emitted by the light emitting unit and the liquid crystal panel.
  • the inclination angle of the light emitting unit may be 30 ° to 45 °, for example.
  • the specific light emitting angle of the light emitting unit may be determined according to the position of the light emitting unit on the liquid crystal panel and / or the position of the fingerprint detection area on the liquid crystal panel.
  • the range of the tilt angle of the light-emitting unit described above is only a specific implementation, and the tilt angle may also be other angles outside the range, as long as the light signal emitted by the light-emitting unit can be transmitted to the fingerprint detection area .
  • control unit can also synchronize the light signal emitted by the light emitting unit with the light signal reflected by the fingerprint sensor and reflected by the finger through the synchronization signal.
  • the under-screen fingerprint recognition device may include a mirror and an optical lens.
  • the mirror and the optical lens are both located below the non-display area of the liquid crystal panel.
  • the mirror can receive the optical signal reflected by the finger and reflect the optical signal to the optical lens.
  • the optical lens can focus the light signal reflected by the mirror to the fingerprint sensor. Therefore, the fingerprint sensor can collect fingerprint images based on the received optical signal.
  • FIG. 6 is a schematic structural diagram of an electronic device applied to another fingerprint identification device according to an embodiment of the present application.
  • the fingerprint identification device shown in FIG. 6 can be applied to an electronic device having a backlight module 420 and a liquid crystal panel 430.
  • the backlight module 420 is located below the liquid crystal panel 430.
  • the liquid crystal panel 430 may include a display area and a non-display area, and a fingerprint detection area 440 is provided on the display area of the liquid crystal panel 430.
  • the screen of the off-screen fingerprint identification device shown in FIG. 6 may include:
  • the mirror 460 is located below the non-display area of the liquid crystal panel 430, and is used to reflect the optical signal reflected by the finger; the optical lens 470, located below the non-display area of the liquid crystal panel 430, can receive the optical signal reflected by the mirror 460, The optical signal is focused on the fingerprint sensor 410; the photosensitive surface of the fingerprint sensor 410 may face the reflective surface of the mirror 460, and is used to generate the fingerprint information of the finger according to the optical signal focused by the optical lens 470.
  • the under-screen fingerprint recognition device may further include a light-emitting unit 450, which is located below the non-display area of the liquid crystal panel and can realize independent light emission.
  • the control unit may control the light emitting unit 450 to emit an optical signal to the fingerprint detection area.
  • the light signal emitted by the light-emitting unit can pass through the liquid crystal panel and illuminate the finger above the fingerprint detection area to form diffuse reflection.
  • the light signal after the diffuse reflection of the finger carries the fingerprint information of the finger.
  • the light signal diffusely reflected by the finger passes through the liquid crystal panel again and reaches the reflector under the non-display area.
  • the mirror can reflect the optical signal, and the optical lens can focus the optical signal reflected by the mirror to the fingerprint sensor.
  • the fingerprint sensor generates fingerprint information of the finger based on the received light signal.
  • the under-screen fingerprint recognition device shown in FIG. 6 includes a fingerprint sensor 410, a light-emitting unit 450, a mirror 460, and an optical lens 470 that can be assembled together through a flexible printed circuit (FPC) connection line 480 to form a whole Fingerprint module.
  • FPC flexible printed circuit
  • the reflector 460 may be located below the non-display area of the liquid crystal panel, and is used to receive the optical signal reflected by the finger and reflect the optical signal.
  • the optical lens 470 may stand sideways, receive the optical signal reflected by the mirror 460, and focus the optical signal onto the fingerprint sensor 410.
  • the photosensitive surface of the fingerprint sensor 410 may face the reflective surface of the mirror, and is used to receive the optical signal after focusing by the optical lens, and generate finger fingerprint information according to the optical signal.
  • the reflective surface of the mirror 460 may face upward, that is, the reflective surface of the mirror 460 faces the lower surface of the liquid crystal panel 430, the fingerprint sensor 410 may be inverted, and the photosensitive surface faces downward, that is, the photosensitive surface of the fingerprint sensor 410 The back faces the lower surface of the liquid crystal panel 430, and the reflective surface of the mirror 460 faces the photosensitive surface of the fingerprint sensor 410.
  • the optical lens 470 may be disposed between the fingerprint sensor 410 and the mirror 460.
  • the non-display area of the liquid crystal panel includes a third target position opposite to the positions of the reflector and the fingerprint sensor, and the third target position is located at the center of the fingerprint detection area along the liquid crystal The position of the panel extending in the longitudinal direction.
  • the optical lens stands sideways, and it is not limited to that the optical axis of the optical lens shown in FIG. 6 is parallel to the liquid crystal panel, and the optical axis of the optical lens may have a certain angle with the display screen.
  • the included angle may be, for example, 0-30 °. Preferably, the included angle may be 15 °.
  • the setting angle of the optical lens can be adjusted according to the specific conditions of the optical path. For example, it can be specifically determined according to the light emitting angle of the light emitting unit, the position of the fingerprint detection area on the liquid crystal panel, and / or the position of the reflector.
  • the setting angles of the optical lenses in different electronic devices may be the same or different.
  • the setting angle of the optical lens and the position of the fingerprint sensor can be adjusted according to the specific conditions of the optical path. For example, the angle of emission of the light emitting unit, the position of the fingerprint detection area in the display area, and / or the position, angle, etc. of the mirror may change accordingly.
  • the positions of the fingerprint sensors in different electronic devices may be the same or different.
  • the photosensitive surface of the fingerprint sensor is facing downwards.
  • the fingerprint sensor and the liquid crystal panel may be arranged in parallel, or the fingerprint sensor may have a certain inclination angle relative to the liquid crystal panel. It is enough to receive the optical signal after focusing by the optical lens.
  • the structure of the fingerprint identification device provided in the embodiments of the present application can be applied to electronic devices with high requirements on size, such as mobile phones.
  • the light-emitting unit may be located in the non-display area of the liquid crystal panel, and at the central position of the fingerprint detection area along the lengthwise direction of the liquid crystal panel, or on both sides of the extended position.
  • FIG. 7 and FIG. 8 are schematic front views of electronic devices provided by embodiments of the present application.
  • the fingerprint detection area 440 is located in the display area 610 of the liquid crystal panel, and the light emitting unit 450 and the fingerprint recognition module 490 are located below the non-display area 620 of the liquid crystal panel.
  • the non-display area 620 may be, for example, a non-display area of the mobile phone chin.
  • the fingerprint identification module 490 may include, for example, a mirror, an optical lens, a fingerprint sensor, and the like.
  • the specific structure of the fingerprint identification module can refer to the description of FIG. 6.
  • the specific position of the light emitting unit 450 may be as shown in FIG. 7, for example.
  • the non-display area 620 includes a first target position opposite to the position of the light emitting unit 450, and the first target position is located at the center of the fingerprint detection area 440 along the liquid crystal. The position of the panel extending in the longitudinal direction.
  • the specific position of the light emitting unit 450 may also be as shown in FIG. 8, and the under-screen fingerprint recognition device may include two light emitting units 450, a first light emitting unit, and a first light emitting unit.
  • the non-display area 620 includes a second target position opposite to the positions of the first light emitting unit and the second light emitting unit, and the second target position is located at the center of the fingerprint detection area 440 along the liquid crystal panel On both sides of the position extending in the length direction.
  • the two light emitting units may be arranged symmetrically along the longitudinal axis of the liquid crystal panel, or may be arranged asymmetrically, which is not specifically limited in the embodiments of the present application.
  • the two light emitting units may also be located on one side of the longitudinal axis of the liquid crystal panel, and are not limited to both sides of the longitudinal axis of the liquid crystal panel.
  • the embodiment of the present application is only exemplified by one light-emitting unit and two light-emitting units, and the off-screen fingerprint recognition device may further include more than two light-emitting units.
  • the positions of the light-emitting units shown in FIG. 7 and FIG. 8 are only two possible installation methods, and the light-emitting units can be arranged at any position in the non-display area of the liquid crystal panel.
  • An embodiment of the present application also provides an electronic device, which can support off-screen fingerprint recognition.
  • the electronic device may include the off-screen fingerprint identification device described above.
  • the electronic device may further include a liquid crystal panel and a backlight module.
  • the backlight module is located below the liquid crystal panel.
  • the liquid crystal panel includes a display area and a non-display area, and a fingerprint detection area is provided on the display area.
  • the under-screen fingerprint recognition device is located below the display area of the liquid crystal panel, and is used to receive the light signal emitted by the backlight module and reflected by the finger above the fingerprint detection area, and generate the finger according to the received light signal Fingerprint information.
  • FIG. 9 is a schematic block diagram of an off-screen fingerprint recognition device provided by an embodiment of the present application.
  • the off-screen fingerprint recognition device may include: a user interaction module, an image processing module, and an optical fingerprint module.
  • the optical fingerprint module may include a control unit, a fingerprint sensor, a power module and a light emitting unit. The functions of each module are described below.
  • User interaction module It can provide a fingerprint management operation interface for users to enable or disable the fingerprint function, add or delete fingerprints, and display the fingerprint entry progress, recognition results, pressing area, and prompt messages.
  • Image processing module complete the reading and processing of fingerprint image data, extract the features of fingerprint images, store the features during fingerprint entry, match the features during fingerprint recognition, distinguish between genuine and fake fingerprints, interact with the command and data of the fingerprint control unit .
  • Control unit complete the control of fingerprint sensor and power module, complete command interaction, data reading, etc. Command and data interaction with the image processing module.
  • control unit may also control the optical signal emitted by the light source module to synchronize with the fingerprint sensor image acquisition through a synchronization signal.
  • Fingerprint sensor It can convert optical signals into electrical signals and digital signals to complete the collection of optical fingerprint image data.
  • Light-emitting unit Provides visible light or invisible light for fingerprint collection.
  • a display screen with a backlight module such as an LCD screen
  • area lighting cannot be achieved, and no light source can be provided when the screen is turned off.
  • the light-emitting unit in the embodiment of the present application can provide a light source when the screen is turned off for fingerprint recognition.
  • the light-emitting unit can be integrated in the optical fingerprint module and hidden under the non-display area of the liquid crystal panel.
  • the light source provided by the light-emitting unit may be, for example, infrared light, which has strong penetrating power and is invisible, and does not affect the screen display.
  • Optical fingerprint module The control unit, fingerprint sensor, light-emitting unit, etc. can be connected by FPC to assemble a whole fingerprint module form.
  • FIG. 10 is a schematic flowchart of a fingerprint registration method provided by an embodiment of the present application. This method may be executed by the mobile terminal 100 described in FIG. 1, may also be executed by the off-screen fingerprint identification device shown in FIGS. 4 to 8, or may be executed by a fingerprint identification module in the fingerprint identification device. As shown in FIG. 10, the method includes some or all of the following:
  • the optical fingerprint module collects optical fingerprint images.
  • steps 803 to 811 are continued.
  • FIG. 11 is a schematic flowchart of a fingerprint identification process provided by an embodiment of the present application. This method may be executed by the mobile terminal 100 described in FIG. 1, may also be executed by the off-screen fingerprint identification device shown in FIGS. 4 to 8, or may be executed by a fingerprint identification module in the fingerprint identification device. As shown in FIG. 11, the method includes part or all of the following:
  • the fingerprint recognition module collects optical fingerprint images.
  • step 909 In the case where the fingerprint images do not match, determine whether the user keeps pressing. In the case where the user keeps pressing, steps 905 to 909 are re-executed. If it is not detected that the user keeps pressing, skip to step 911 directly.
  • the functional module shown in FIG. 9 may be implemented in the form of hardware, or in the form of instructions in the form of software, or may be implemented in a combination of hardware and software modules.
  • each step of the method embodiment shown in FIG. 10 or FIG. 11 in the embodiment of the present application may be completed by an integrated logic circuit of hardware in the processor and / or instructions in the form of software, combined with the disclosure in the embodiment of the present application
  • the steps of the method can be directly embodied and completed by a hardware decoding processor, or can be completed by a combination of hardware and software modules in the decoding processor.
  • the software module may be located in a mature storage medium in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, and registers.
  • the storage medium is located in the memory.
  • the processor reads the information in the memory and combines the hardware to complete the steps in the foregoing method embodiments.
  • the off-screen fingerprint recognition device 1000 may further include a memory 1020.
  • the memory 1020 may be used to store instruction information, and may also be used to store codes and instructions executed by the processor 1010.
  • the processor 1010 can call and run a computer program from the memory 1020 to implement the method in the embodiments of the present application.
  • the memory 1020 may be a separate device independent of the processor 1010, or may be integrated in the processor 1010.
  • the off-screen fingerprint recognition device 1000 may further include a liquid crystal panel 1040 for displaying information to the user.
  • the off-screen fingerprint recognition device 1000 may further include a fingerprint recognition module 1030.
  • the fingerprint recognition module may receive the optical signal reflected by the finger and generate the fingerprint information of the finger according to the received optical signal.
  • the fingerprint identification module may include a fingerprint sensor.
  • each component in the under-screen fingerprint identification device is connected through a bus system, where the bus system includes a power bus, a control bus, and a status signal bus in addition to a data bus.
  • processor mentioned in the embodiments of the present application may be an integrated circuit chip with signal processing capabilities, and may implement or execute the methods, steps, and logical block diagrams disclosed in the embodiments of the present application.
  • the aforementioned processor may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), an existing programmable gate array (FPGA), or Other programmable logic devices, transistor logic devices, discrete hardware components, etc.
  • the general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the memory mentioned in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (read-only memory, ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electronically Erase programmable EPROM (EEPROM) or flash memory.
  • the volatile memory may be a random access memory (random access memory, RAM), which is used as an external cache.
  • the memory in the embodiments of the present application may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data) SDRAM (DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synchlink DRAM, SLDRAM) and direct memory bus random access memory (directrambus RAM, DR RAM) and so on.
  • static random access memory static random access memory
  • DRAM dynamic random access memory
  • SDRAM Synchronous dynamic random access memory
  • DDR SDRAM double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • synchronous connection Dynamic random access memory switchlink DRAM, SLDRAM
  • direct memory bus random access memory directrambus RAM, DR RAM
  • the technical solutions of the embodiments of the present application may essentially be a part that contributes to the existing technology or a part of the technical solution may be embodied in the form of a software product, and the computer software product is stored in a storage medium , Including several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in the embodiments of the present application.
  • the foregoing storage media include various media that can store program codes, such as a U disk, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk, or an optical disk.
  • the division of units or modules or components in the device embodiments described above is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or modules or components may be combined or integrated To another system, or some units or modules or components can be ignored, or not implemented.
  • the units / modules / components described as separate / display components may or may not be physically separated, that is, they may be located in one place, or may be distributed on multiple network units. Some or all of the units / modules / components may be selected according to actual needs to achieve the objectives of the embodiments of the present application.
  • coupling or direct coupling or communication connection shown or discussed above may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms .

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Abstract

L'invention concerne un appareil de reconnaissance d'empreintes digitales sous affichage et un dispositif électronique qui sont appropriés pour une reconnaissance d'empreintes digitales sous un écran LCD. L'appareil de reconnaissance d'empreintes digitales sous affichage est appliqué au dispositif électronique ayant un module de rétroéclairage (420) et un panneau à cristaux liquides (430). Le module de rétroéclairage (420) est situé sous le panneau à cristaux liquides (430). Le panneau à cristaux liquides (430) comprend une région d'affichage et une région de non-affichage, la région d'affichage étant pourvue d'une région de détection d'empreintes digitales (440). L'appareil de reconnaissance d'empreintes digitales sous affichage comprend : un capteur d'empreintes digitales (410) disposé sous la région de non-affichage du panneau à cristaux liquides (430) et utilisé pour recevoir un signal lumineux émis par le module de rétroéclairage (420) et réfléchi par un doigt sur la région de détection d'empreintes digitales (440) et pour générer, en fonction du signal lumineux reçu, des informations d'empreinte digitale du doigt.
PCT/CN2018/110297 2018-10-15 2018-10-15 Appareil de reconnaissance d'empreintes digitales sous affichage et dispositif électronique WO2020077505A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/CN2018/110297 WO2020077505A1 (fr) 2018-10-15 2018-10-15 Appareil de reconnaissance d'empreintes digitales sous affichage et dispositif électronique
CN201880002094.2A CN109496314B (zh) 2018-10-15 2018-10-15 屏下指纹识别装置和电子设备
PCT/CN2019/087105 WO2020077994A1 (fr) 2018-10-15 2019-05-15 Appareil d'identification d'empreintes digitales et dispositif électronique
CN201920706840.8U CN210038812U (zh) 2018-10-15 2019-05-15 屏下指纹识别装置、指纹识别装置和电子设备
CN201980002794.6A CN110730967A (zh) 2018-10-15 2019-05-15 指纹识别装置和电子设备

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111693684A (zh) * 2020-05-27 2020-09-22 微医佰康(福建)医疗科技有限公司 一种便携式检测仪的logo背光系统
EP4024272A4 (fr) * 2019-11-07 2022-10-19 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Dispositif électronique et procédé de commande associé

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020077994A1 (fr) * 2018-10-15 2020-04-23 深圳市汇顶科技股份有限公司 Appareil d'identification d'empreintes digitales et dispositif électronique
WO2020150879A1 (fr) * 2019-01-22 2020-07-30 深圳市汇顶科技股份有限公司 Système de reconnaissance d'empreintes digitales sous écran, appareil de reconnaissance d'empreintes digitales à écran à cristaux liquides, et dispositif électronique
CN111095273B (zh) * 2019-01-22 2022-05-03 深圳市汇顶科技股份有限公司 生物特征识别的装置
CN110069998B (zh) * 2019-03-23 2021-12-07 深圳阜时科技有限公司 一种基座及传感模组
WO2020191659A1 (fr) * 2019-03-27 2020-10-01 深圳市汇顶科技股份有限公司 Procédé d'identification d'empreintes digitales appliqué sous l'écran d'un dispositif terminal, et dispositif terminal
WO2020215187A1 (fr) * 2019-04-22 2020-10-29 深圳市汇顶科技股份有限公司 Procédé de reconnaissance d'empreinte digitale et dispositif électronique
CN110909584A (zh) * 2019-04-23 2020-03-24 深圳阜时科技有限公司 显示装置、指纹传感系统及电子设备
WO2020220305A1 (fr) * 2019-04-30 2020-11-05 深圳市汇顶科技股份有限公司 Appareil d'identification d'empreintes digitales sous-écran et dispositif électronique
CN111259884A (zh) * 2019-05-10 2020-06-09 深圳阜时科技有限公司 显示面板、显示装置、生物特征检测系统和电子设备
CN110291530B (zh) * 2019-05-14 2023-06-30 深圳市汇顶科技股份有限公司 用于指纹识别的方法、指纹识别装置和终端设备
CN110110701B (zh) * 2019-05-21 2024-05-14 深圳市隆利科技股份有限公司 一种指纹识别模组
CN110275641B (zh) * 2019-06-28 2023-07-07 Oppo广东移动通信有限公司 电子装置及屏下光学指纹模组
WO2021003723A1 (fr) * 2019-07-10 2021-01-14 深圳市汇顶科技股份有限公司 Procédé et appareil de reconnaissance d'empreintes digitales, et dispositif électronique
CN111066029B (zh) * 2019-07-30 2023-10-24 深圳市汇顶科技股份有限公司 一种指纹识别组件、光学指纹显示模组及电子装置
CN110515238B (zh) * 2019-08-27 2024-04-16 深圳市隆利科技股份有限公司 指纹识别背光模组及电子设备
CN111095275B (zh) * 2019-08-29 2023-09-05 深圳市汇顶科技股份有限公司 指纹识别的装置、方法和电子设备
CN110598662B (zh) * 2019-09-18 2022-11-11 Oppo广东移动通信有限公司 电子设备
CN110619305A (zh) * 2019-09-18 2019-12-27 Oppo广东移动通信有限公司 显示屏组件及电子设备
CN110598663B (zh) * 2019-09-18 2021-06-01 Oppo广东移动通信有限公司 显示屏组件及电子设备和指纹处理方法
CN110598657B (zh) * 2019-09-18 2022-04-22 Oppo广东移动通信有限公司 屏下光学指纹识别电子设备
CN110569825B (zh) * 2019-09-18 2023-02-28 Oppo广东移动通信有限公司 显示屏组件及屏下指纹识别电子设备
CN110596931A (zh) * 2019-09-18 2019-12-20 Oppo广东移动通信有限公司 显示屏组件及电子设备
CN110619306A (zh) * 2019-09-18 2019-12-27 Oppo广东移动通信有限公司 显示屏组件、电子设备及指纹处理方法
CN111095271B (zh) * 2019-09-20 2023-09-12 深圳市汇顶科技股份有限公司 指纹检测的装置、显示屏和电子设备
CN110728250A (zh) * 2019-10-21 2020-01-24 云谷（固安）科技有限公司 指纹识别装置、方法、显示面板和电子设备
CN110796070B (zh) * 2019-10-28 2021-05-04 Oppo广东移动通信有限公司 显示屏组件及屏下指纹识别电子设备
WO2021081763A1 (fr) * 2019-10-29 2021-05-06 深圳市汇顶科技股份有限公司 Appareil de reconnaissance d'empreintes digitales sous écran et dispositif électronique
CN112748761B (zh) * 2019-10-31 2024-04-19 Oppo广东移动通信有限公司 电子设备
EP3846071A4 (fr) * 2019-11-08 2021-07-21 Shenzhen Goodix Technology Co., Ltd. Appareil de reconnaissance d'empreintes digitales optique et dispositif électronique
WO2021097719A1 (fr) * 2019-11-20 2021-05-27 深圳市汇顶科技股份有限公司 Dispositif et système de reconnaissance d'empreintes digitales sous-écran, ensemble plaque de guidage de lumière et écran d'affichage à cristaux liquides
CN111095288B (zh) * 2019-12-02 2023-09-05 深圳市汇顶科技股份有限公司 屏下光学指纹识别装置及系统、液晶显示屏
WO2021109045A1 (fr) * 2019-12-04 2021-06-10 深圳市汇顶科技股份有限公司 Dispositif de collecte d'empreinte digitale sous-écran, écran tactile lcd et dispositif électronique
CN112904936A (zh) * 2019-12-04 2021-06-04 Oppo广东移动通信有限公司 电子设备
CN111178164B (zh) * 2019-12-12 2022-04-05 武汉华星光电技术有限公司 屏下光学指纹识别装置
CN111325100B (zh) * 2020-01-21 2024-04-09 维沃移动通信有限公司 一种电子设备
CN111325102B (zh) * 2020-01-21 2023-11-24 天津极豪科技有限公司 屏下指纹摄像组件、lcd屏下指纹组件及移动终端
CN111428618B (zh) * 2020-03-20 2023-11-17 华为技术有限公司 一种显示模组和电子设备
CN111553301B (zh) * 2020-05-08 2022-10-14 深圳天德钰科技股份有限公司 显示装置
CN111709394B (zh) * 2020-06-30 2023-06-02 Oppo（重庆）智能科技有限公司 一种屏下指纹识别方法及装置、存储介质
US11538269B2 (en) * 2021-04-28 2022-12-27 Omnivision Technologies, Inc. Optical fingerprint sensor for LCD panel

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140098420A1 (en) * 2012-10-04 2014-04-10 Tera Xtal Technology Corporation Polarization conversion mechanism and method thereof
CN106339682A (zh) * 2016-08-26 2017-01-18 京东方科技集团股份有限公司 指纹识别的显示面板及指纹识别的显示装置
CN207637122U (zh) * 2017-11-30 2018-07-20 维沃移动通信有限公司 一种具有指纹识别功能的移动终端
CN108446670A (zh) * 2018-04-16 2018-08-24 珠海市魅族科技有限公司 指纹识别方法和指纹识别装置
CN108614982A (zh) * 2016-12-09 2018-10-02 上海箩箕技术有限公司 显示模组及其使用方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120280368A1 (en) * 2011-05-06 2012-11-08 Sean Matthew Garner Laminated structure for semiconductor devices
CN103942537A (zh) * 2014-04-04 2014-07-23 王曙光 液晶终端设备、指纹图像的采集方法及指纹采集器
US10116868B2 (en) * 2014-04-28 2018-10-30 Qualcomm Incorporated Display-integrated user-classification, security and fingerprint system
WO2017076292A1 (fr) * 2015-11-02 2017-05-11 Shenzhen Huiding Technology Co., Ltd. Capteur d'empreintes digitales multifonction doté d'une détection optique contre les contrefaçons d'empreintes digitales
CN107004130B (zh) * 2015-06-18 2020-08-28 深圳市汇顶科技股份有限公司 用于屏幕上指纹感应的屏幕下光学传感器模块
CN105334657B (zh) * 2015-11-26 2019-12-03 小米科技有限责任公司 液晶显示组件及电子设备
US10176355B2 (en) * 2015-12-03 2019-01-08 Synaptics Incorporated Optical sensor for integration in a display
CN106156753B (zh) * 2016-07-25 2019-06-07 京东方科技集团股份有限公司 指纹识别的阵列基板及其制作方法、显示装置
CN107170360B (zh) * 2017-04-27 2020-03-24 Oppo广东移动通信有限公司 显示屏及其制备方法、移动终端
CN107317896B (zh) * 2017-06-29 2020-07-07 努比亚技术有限公司 一种双摄像头装置及移动终端
CN108415188B (zh) * 2018-05-02 2021-11-16 上海中航光电子有限公司 一种液晶显示面板、显示装置及其指纹解锁方法
CN208969685U (zh) * 2018-10-15 2019-06-11 深圳市汇顶科技股份有限公司 屏下指纹识别装置和电子设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140098420A1 (en) * 2012-10-04 2014-04-10 Tera Xtal Technology Corporation Polarization conversion mechanism and method thereof
CN106339682A (zh) * 2016-08-26 2017-01-18 京东方科技集团股份有限公司 指纹识别的显示面板及指纹识别的显示装置
CN108614982A (zh) * 2016-12-09 2018-10-02 上海箩箕技术有限公司 显示模组及其使用方法
CN207637122U (zh) * 2017-11-30 2018-07-20 维沃移动通信有限公司 一种具有指纹识别功能的移动终端
CN108446670A (zh) * 2018-04-16 2018-08-24 珠海市魅族科技有限公司 指纹识别方法和指纹识别装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4024272A4 (fr) * 2019-11-07 2022-10-19 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Dispositif électronique et procédé de commande associé
US11893823B2 (en) 2019-11-07 2024-02-06 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Electronic device and method for controlling same
CN111693684A (zh) * 2020-05-27 2020-09-22 微医佰康(福建)医疗科技有限公司 一种便携式检测仪的logo背光系统
CN111693684B (zh) * 2020-05-27 2022-10-11 微医佰康(福建)医疗科技有限公司 一种便携式检测仪的logo背光系统

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