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    OPTICAL-FINGERPRINT DETECTION SYSTEM
    1.
    发明申请
    OPTICAL-FINGERPRINT DETECTION SYSTEM 审中-公开

    公开(公告)号：WO2020139505A2

    公开(公告)日：2020-07-02

    申请号：PCT/US2019/063440

    申请日：2019-11-26

    Applicant: APPLE INC.

    Inventor： KRAH, Christoph H. ,  YEKE YAZDANDOOST, Mohammad

    IPC: G06K9/00

    Abstract: A method of temperature compensation in an optical-fingerprint detection system includes acquiring a first reading associated with one or more pixels of an array. The first reading is a baseline reading. The method further includes acquiring a second reading associated with the one or more pixels of the array. The second reading includes the baseline plus a signal. Producing a temperature compensated signal reading by subtracting the first reading from the second reading. The array is an optical-fingerprint array, and each pixel of the array is coupled to a readout circuit via a pixel switch. The method includes row-based and frame-based schemes and a blind pixel scheme. Readout circuit improvements including multiplexed analog front-end (AFE), charge magnifier with column charge offset compensation and a low-noise gate driver circuit are provided.

    ORGANIC PHOTODETECTORS FOR IN-CELL OPTICAL SENSING
    2.
    发明申请
    ORGANIC PHOTODETECTORS FOR IN-CELL OPTICAL SENSING 审中-公开

    公开(公告)号：WO2022192005A1

    公开(公告)日：2022-09-15

    申请号：PCT/US2022/017842

    申请日：2022-02-25

    Applicant: APPLE INC.

    Inventor： EINZINGER, Markus ,  KUIK, Martijn ,  YEKE YAZDANDOOST, Mohammad ,  RAN, Niva A.

    IPC: H01L27/32 ,  H01L51/42 ,  H01L51/50

    Abstract: An organic light-emitting diode (OLED) display includes an array of OLED pixels and an array of organic photodetector (OPD) pixels. An OLED pixel in the array of OLED pixels includes an OLED hole transport layer (HTL), an OLED electron transport layer (ETL), and an emissive layer positioned between the OLED HTL and the OLED ETL. An OPD pixel in the array of OPD pixels includes the OLED HTL, the OLED ETL, and an electron donor material positioned between the OLED HTL and the OLED ETL, wherein the OLED ETL functions as an electron acceptor material for the OPD pixel. In other embodiments, the OPD pixel may be configured differently.

    ELECTRONIC DEVICE INCLUDING CONTACTLESS PALM BIOMETRIC SENSOR AND RELATED METHODS
    3.
    发明申请
    ELECTRONIC DEVICE INCLUDING CONTACTLESS PALM BIOMETRIC SENSOR AND RELATED METHODS 审中-公开

    公开(公告)号：WO2019173011A1

    公开(公告)日：2019-09-12

    申请号：PCT/US2019/015791

    申请日：2019-01-30

    Applicant: APPLE INC.

    Inventor： SETLAK, Dale R. ,  GOZZINI, Giovanni ,  YEKE YAZDANDOOST, Mohammad

    IPC: G06K9/00 ,  G06K9/32 ,  G06K9/22

    Abstract: An electronic device may include a contactless palm biometric sensor that includes at least one light source and at least one light sensor cooperating therewith. The electronic device may also include a controller configured to capture image data from a user's palm positioned in spaced relation adjacent the contactless palm biometric sensor and determine an orientation offset of the user's palm based upon the image data. The controller may also be configured to determine a surface distortion of the user's palm based upon the image data, and perform a biometric authentication of the user's palm based upon the image data, the orientation offset, and the surface distortion.

    UNDER-DISPLAY OPTICAL FINGERPRINT SENSOR WITH NFV COLLIMATOR AND TFT/ORGANIC IMAGER
    4.
    发明申请
    UNDER-DISPLAY OPTICAL FINGERPRINT SENSOR WITH NFV COLLIMATOR AND TFT/ORGANIC IMAGER 审中-公开

    公开(公告)号：WO2020068242A1

    公开(公告)日：2020-04-02

    申请号：PCT/US2019/040355

    申请日：2019-07-02

    Applicant: APPLE INC.

    Inventor： YEKE YAZDANDOOST, Mohammad ,  GOZZINI, Giovanni ,  SETLAK, Dale

    IPC: G06K9/00

    Abstract: An apparatus for fingerprint sensing includes a touch-display layer covered by a transparent layer. The touch-display layer can emit light to illuminate a finger surface touching the transparent layer. The touch-display layer is transparent to reflected light from the surface to underlying layers. The underlying layers include a collimator layer and a pixelated image sensor. The collimator layer can collimate the reflected light, and the pixelated image sensor can sense the collimated reflected light. The collimator can collimate the reflected light to enable a one-to-one imaging ratio between an area of the finger surface touching the transparent layer and an area of a corresponding image formed on the pixelated image sensor.

    ELECTRONIC DEVICES HAVING MOISTURE-INSENSITIVE OPTICAL TOUCH SENSORS
    6.
    发明申请
    ELECTRONIC DEVICES HAVING MOISTURE-INSENSITIVE OPTICAL TOUCH SENSORS 审中-公开

    公开(公告)号：WO2022187069A1

    公开(公告)日：2022-09-09

    申请号：PCT/US2022/017644

    申请日：2022-02-24

    Applicant: APPLE INC.

    Inventor： YEKE YAZDANDOOST, Mohammad ,  KRAH, Christoph, H.

    IPC: G06F3/042

    Abstract: An electronic device may have a touch sensitive display that is insensitive to the presence of moisture. An array of pixels in the display may be used to display images. A display cover layer may overlap the array of pixels. A light source may illuminate an external object such as a finger of a user when the object contacts a surface of the display cover layer. This creates scattered light that may be detected by an array of light sensors. The light source may supply light to an edge of the display cover layer at an angle that ensures total internal reflection within the display cover layer is sustained across the display cover layer even when the display cover layer is immersed in water or otherwise exposed to moisture.

    DISPLAY WITH OPTICAL EDGE SENSORS
    7.
    发明申请
    DISPLAY WITH OPTICAL EDGE SENSORS 审中-公开

    公开(公告)号：WO2021061476A1

    公开(公告)日：2021-04-01

    申请号：PCT/US2020/051126

    申请日：2020-09-16

    Applicant: APPLE INC.

    Inventor： KRAH, Christoph, H. ,  YEKE YAZDANDOOST, Mohammad

    IPC: G06F3/042 ,  G06F3/044

    Abstract: A display may have an array of light-emitting pixels that display an image in an active area of the display. These light-emitting pixels may be visible light pixels such as red, green, and blue thin-film organic light-emitting diode pixels. The display may also have a border region that runs along a peripheral edge of the active area. The border region may be free of pixels that display image light, whereas the active area may be free of light detectors. A non- optical touch sensor such as a capacitive touch sensor may overlap the active area to gather touch input from the active area. The non-optical touch sensor may not overlap any portion of the border region. In the border region, an optical sensor formed from infrared light- emitting pixels and infrared light-sensing pixels or other optical sensing circuitry may serve as an optical touch sensor.

    METHODOLOGY AND APPLICATION OF ACOUSTIC TOUCH DETECTION
    8.
    发明申请
    METHODOLOGY AND APPLICATION OF ACOUSTIC TOUCH DETECTION 审中-公开
    声学触摸检测方法及其应用

    公开(公告)号：WO2018023080A2

    公开(公告)日：2018-02-01

    申请号：PCT/US2017/044533

    申请日：2017-07-28

    Applicant: APPLE INC.

    Inventor： KING, Brian, Michael ,  YEKE YAZDANDOOST, Mohammad ,  KHAJEH, Ehsan ,  TUCKER, Aaron, Scott ,  GOZZINI, Giovanni ,  YIP, Marcus ,  YOUSEFPOR, Marduke ,  JADHAV, Digvijay, A. ,  SEN, Indranil ,  NARANG, Mohit ,  JIANG, Yi ,  MAJIDZADEH BAFAR, Vahid ,  KERAMAT, Mansour ,  XU, Hao

    IPC: G06F3/043

    Abstract: Acoustic touch detection (touch sensing) system architectures and methods can be used to detect an object touching a surface. Position of an object touching a surface can be determined using time-of-flight (TOF) bounding box techniques, or acoustic image reconstruction techniques, for example. Acoustic touch sensing can utilize transducers, such as piezoelectric transducers, to transmit ultrasonic waves along a surface and/or through the thickness of an electronic device. Location of the object can be determined, for example, based on the amount of time elapsing between the transmission of the wave and the detection of the reflected wave. An object in contact with the surface can interact with the transmitted wave causing attenuation, redirection and/or reflection of at least a portion of the transmitted wave. Portions of the transmitted wave energy after interaction with the object can be measured to determine the touch location of the object on the surface of the device.

    Abstract translation: 可以使用声触摸检测（触摸感测）系统体系结构和方法来检测接触表面的物体。 例如，可以使用飞行时间（TOF）边界框技术或声学图像重建技术来确定接触表面的物体的位置。 声学触摸感测可以利用换能器（例如压电换能器）沿着表面和/或通过电子设备的厚度来发射超声波。 对象的位置可以例如基于波的传输和反射波的检测之间流逝的时间量来确定。 与表面接触的物体可与发射波相互作用，导致至少一部分发射波的衰减，重定向和/或反射。 可以测量与对象相互作用后的传输波能的部分，以确定对象在设备表面上的触摸位置。

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