Abstract: An apparatus includes an ultrasonic sensor stack, a foldable display stack that includes a display stiffener, and an additional stiffener between the ultrasonic sensor stack and the foldable display stack. The additional stiffener forms an acoustic resonator with the display stiffener and an adhesive layer between the display stiffener and the additional stiffener in order to amplify transmission of ultrasonic waves transmitted by the ultrasonic sensor stack. The additional stiffener includes a material having a high modulus of elasticity, low density, and high acoustic impedance value. In some cases, the additional stiffener includes a metal, a ceramic, a glass, or a glass ceramic. The additional stiffener increases an overall stiffness and mechanical integrity of the apparatus so that a foam backer may be omitted from the ultrasonic sensor stack.

Abstract: A novel electronic device is provided. An electronic device capable of executing various types of processing by simple operation is provided. An electronic device with a high security level is provided. The electronic device includes a control portion, a detection portion, and a memory portion. The detection portion has a function of detecting touch operation and a function of obtaining fingerprint data on a touching finger. The memory portion has a function of retaining fingerprint data on a plurality of finger registered in advance.

Abstract: In order to provide a technique capable of presenting information that is different from the image of a surveillance camera and is effective for searching for a person, this search information providing device includes, as functional units, a collation unit and an output unit. The collation unit collates a fingerprint image obtained by a fingerprint photographing device with a fingerprint image, of a search target person, given in advance. When the fingerprint image on the handrail member matches the fingerprint image of the search target person, the output unit outputs information indicating that the search target person has been detected to a predetermined reporting destination.

Abstract: An electronic device is provided.

Abstract: A terminal device is disclosed, including a display module, an optical fingerprint sensor, at least two backlight assemblies, and a light emitter. The display module includes a display screen and a light-transmissive cover that covers the display screen. The light emitter and the display screen are both fastened onto an inner surface of the light-transmissive cover, the optical fingerprint sensor is provided on a side of the display screen facing away from the light-transmissive cover, and the at least two backlight assemblies are provided sequentially between the display screen and the optical fingerprint sensor. Along a direction from the display screen to the optical fingerprint sensor, areas of light-transmissive regions of the at least two backlight assemblies are gradually reduced. Light emitted by the light emitter experiences a finger, and then successively passes through the display module and the light-transmissive regions and is projected onto the optical fingerprint sensor.

Abstract: A texture recognition apparatus and an electronic apparatus are provided. The texture recognition apparatus has a touch side surface, and includes a light source array, an image sensor array, and a light shielding layer. The light source array includes a plurality of light sources; the image sensor array includes a plurality of image sensors, each image sensor includes a photosensitive element; the light shielding layer is on a light incident side of the image sensor array, the light shielding layer includes a plurality of light-transmitting holes; the plurality of light-transmitting holes are configured to collimate light emitted by the plurality of light sources and reflected by the texture to a direction perpendicular to the touch side surface; and in the direction perpendicular to the touch side surface, a photosensitive element in each image sensor at least partially overlaps with at least one of the plurality of light-transmitting holes.

Abstract: The embodiments of the present disclosure provide a fingerprint detection method and a fingerprint module. The fingerprint detection method includes: dividing a detection area of the fingerprint module into a plurality of detection blocks, wherein each of the detection blocks comprises a plurality of detection units, and each of the detection units is corresponding to a grayscale value; scanning at least part of the detection blocks to obtain the grayscale values; determining whether each of the detection blocks is in a covered state based on the grayscale values; and counting the number of the detection blocks in the covered state, and sending a collection request to a host to inform the host to obtain a fingerprint image if the number thereof is not less than a coverage block threshold. The method avoids meaningless detection caused by a false touch, and ensures integrity of the fingerprint image collected later.

Abstract: A fingerprint module includes: a lens, a crystal, and an optical fingerprint chip, where the crystal is an anisotropic medium, the lens is located on one side of the crystal, the optical fingerprint chip is located on the other side of the crystal, and the optical fingerprint chip is fixed in a substrate of an electronic device. Incident light including fingerprint information is incident to the crystal through the lens and is incident to the optical fingerprint chip after being refracted by the crystal; and the optical fingerprint chip is used for generating a fingerprint image, and the fingerprint image is used for fingerprint recognition.

Abstract: An electronic circuit adapted to process fingerprint data from a panel including touch sensors and fingerprint sensors is provided. The electronic circuit includes a first circuit, a second circuit and a control circuit. The first circuit is configured to receive touch sensing signals from the touch sensors. The second circuit is configured to receive fingerprint sensing signals corresponding to at least one fingerprint imprint from the fingerprint sensors via fingerprint sensing lines. The control circuit is configured to determine a fingerprint touch area according to the touch sensing signals, and select a subset of the fingerprint sensing lines to form a fingerprint sensing zone adapted for a fingerprint sensing operation and including at least one boundary based on the determined fingerprint touch area. The subset of fingerprint sensing lines is selected based on the at least one boundary of the fingerprint sensing zone.

Abstract: A fingerprint sensing system comprising a plurality of conductive selection lines; a plurality of conductive read-out lines crossing the selection lines; selection circuitry controllable to provide a selection signal on at least one selected selection line in the plurality of selection lines; a plurality of pixel elements formed at intersections between the selection lines and the read-out lines; read-circuitry coupled to each read-out line in the plurality of read-out lines, the read-out circuitry being configured to acquire a read-out signal via a read-out line connected to a selected pixel element, and calibration circuitry having an input for receiving a calibration input signal and an output for providing a calibration output signal, the calibration output signal being formed through interaction between the calibration input signal and the calibration circuitry.

Abstract: The present disclosure provides an under-screen optical fingerprint identification apparatus and a fingerprint identification method.

Abstract: The present disclosure provides an under-screen fingerprint recognition module, a display assembly and a display device. The under-screen fingerprint recognition module includes a base substrate and a plurality of fingerprint recognition units arranged on the base substrate. Each fingerprint recognition unit includes a photosensitive unit and an optical structure arranged on a photosensitive surface of the photosensitive unit. The optical structure includes a light-transmitting ring and a light-transmitting hole sequentially arranged in a direction away from the photosensitive unit. An orthogonal projection of the light-transmitting ring onto the photosensitive unit is completely located on the photosensitive surface of the photosensitive unit, and an orthogonal projection of the light-transmitting hole onto the light-transmitting ring is located within an opaque region surrounded by the light-transmitting ring.

Abstract: A ubiquitously mountable image display system includes a shape-reconfigurable display screen component to which is attached a plurality of circuit modules each having at least one light source. The shape-reconfigurable display screen component is formed of a material that accommodates flexing of the display screen component without creating a perceivable aberration in separation distance between two or more picture elements of an image that is rendered upon a viewing plane of the display screen component when light from the plurality of light sources is directed towards the viewing plane.

Abstract: A display apparatus includes a first surface which is foldable along a folding axis extending in a first direction and includes a display area, a second surface that is opposite to the first surface, a side surface connecting the first surface and the second surface, and at least two sensor portions disposed in at least one of the first surface and the side surface and configured to each provide a fingerprint recognition area.

Abstract: Methods, devices and systems for controlling an ultrasonic fingerprint sensor are disclosed. Some examples involve determining that a first bias voltage is not sufficient for one or more affected ultrasonic receiver pixels of the ultrasonic receiver array and determining one or more affected regions of the ultrasonic receiver array in which the one or more affected ultrasonic receiver pixels are located. Some examples involve determining one or more unaffected regions of the ultrasonic receiver array in which the one or more affected ultrasonic receiver pixels are not located. Some examples involve determining a second bias voltage for the one or more affected regions and recalibrating the ultrasonic fingerprint sensor to apply the second bias voltage to the affected regions and to apply the first bias voltage to the one or more unaffected regions when the ultrasonic receiver array receives ultrasound signals.

Abstract: A button module with vibration feedback and fingerprint sensing, a fingerprint sensing module for the same, and a control method for the same are provided. The fingerprint sensing module has a fingerprint sensing unit stacked on a vibration unit. When the fingerprint sensing module detects a fingerprint, the control unit or a host of an electronic device determines whether the fingerprint is authenticated. If it is not authenticated, the vibration unit is activated, so that the user realizes that the authentication is not passed in real time through the vibration. Then the user may quickly change another finger or move the finger's position to speed up the authentication process. This can prevent users from waiting to improve user experience.

Abstract: A detection device includes: a sensor in which detection elements each including a photoelectric conversion element are arranged in a detection region; a drive circuit configured to supply drive signals to the detection elements; and a detection circuit configured to process a detection signal output from each detection element. Each detection element includes: a source follower transistor configured to output a signal corresponding to an electric charge generated in the photoelectric conversion element; and a read transistor configured to read an output signal of the source follower transistor and output the detection signal. A potential obtained by superimposing a threshold voltage of the source follower transistor and a voltage drop caused by on-resistance of the read transistor on a reset potential serving as a reference value for a voltage variation amount of the detection signal is set as an initial value of a potential applied to the photoelectric conversion element.

Abstract: An electronic device is provided. The electronic device includes a display panel, an image lens positioned under the display panel to form a fingerprint image by using light reflected from user fingerprints, an image sensor configured to convert an image into an electrical signal, a first aperture positioned on a first surface between the image lens and the image sensor to block a light component scattered on the display panel, a relay lens positioned between the first surface and the image sensor to collect light having passed through the first aperture to the image sensor, and a second aperture positioned on a second surface between the relay lens and the image sensor to block a light component scattered on the display panel.

Abstract: The present disclosure provides a screen fingerprint component and a terminal device. The screen fingerprint component includes: a first glass cover plate, a display module, a strobe light, and a fingerprint module, where the first glass cover plate, the display module, and the fingerprint module are stacked, a first side of the display module is attached to a first surface of the first glass cover plate, the strobe light is located on one side of the first glass cover plate and adjacent to both the first surface of the first glass cover plate and the first side of the display module, and the strobe light faces the first glass cover plate.

Abstract: Disclosed is a controller for sensing deformation. Transmit antennas are located on a first structure and transmit signals. Receive antennas are located on a second structure and receive signals. Received signals are processed to determine an amount of deformation. The amount of deformation that occurs may then be correlated to the position of a hand or the location of another body part.