580results about "Print image acquisition" patented technology

The invention provides a fingerprint signal processing method and device and electronic equipment, and can be applied to the technical field of fingerprint identification. Based on the method, before specific implementation, fingerprint pixel units in a fingerprint pixel unit array circuit can be connected with a preset gain amplifier with adjustable gain, and an improved fingerprint pixel unit array circuit is obtained. In specific implementation, when a fingerprint related signal is received, a matched target convolution kernel is determined in the fingerprint pixel unit array circuit; wherein the range of the target convolution kernel comprises a plurality of fingerprint pixel units; and traversing the fingerprint pixel unit array circuit by using a target convolution kernel, and processing the fingerprint related signal to obtain a target fingerprint signal. Therefore, the fingerprint pixel units in the fingerprint pixel unit array circuit can be fully utilized, the received fingerprint related signals are processed by constructing and using the corresponding target convolution kernels, the signal-to-noise ratio of the signals is effectively improved, and target fingerprint signals with high quality are obtained.

A display device includes a base layer, a circuit element layer, and a display element layer including a light emitting element and a light receiving element, wherein the circuit element layer includes pixel driving circuits connected to the light emitting element, sensor driving circuits connected to the light receiving element, a read-out line connected to the sensor driving circuits and extending in a first direction, a first data line connected to the pixel driving circuits and extending in the first direction, a first vertical connection line which is between the first data line and the read-out line in a second direction and extends in the first direction and to which a first DC signal is transmitted, and an insulating layer that covers the first vertical connection line and the first data line, and the first DC signal is a signal transmitted to the pixel driving circuits.

Acoustic sensor systems with different heights, as well as methods for configuring and operating such sensor systems are disclosed. In some embodiments, a sensor system described herein may include an acoustic transmitter element; and an acoustic receiver element; wherein the first portion of the piezoelectric material of the acoustic transmitter element comprises a first thickness, and the second portion of the piezoelectric material of the acoustic receiver element comprises a second thickness different from the first thickness; and wherein the isolation layer is structured to create a gap that physically separates the first portion of the second electrode layer from the second portion of the second electrode layer.

Fabrication and processing of flexible acoustic sensor systems and various configurations of sensor stacks associated therewith are disclosed. In some embodiments, a method for fabrication of a flexible acoustic sensing apparatus may include: obtaining a stack of materials on a glass wafer, the stack of materials including: a thin-film transistor (TFT) component having a flexible substrate; a piezoelectric component on the TFT component, the piezoelectric component configured to, responsive to receipt of an acoustic signal, provide an electrical signal to one or more receiver elements having associated circuitry on the TFT component; and an electrode component on the piezoelectric component, the electrode component including one or more acoustic transmitter elements configured to transmit one or more acoustic signals; performing a laser liftoff (LLO) process to separate the stack of materials from the glass wafer; and implementing at least a portion of the stack of materials with a display component.

A detection device includes: a plurality of photodiodes arranged on a substrate; a front light including a light guide plate disposed so as to overlap the photodiodes, a light source configured to emit light to a first side surface of the light guide plate, and a plurality of scattering portions provided on the light guide plate and configured to scatter light from the light source; and an optical filter layer provided between the photodiodes and the light guide plate of the front light. The optical filter layer includes a plurality of light guide paths that at least partially overlap the photodiodes, and a light-blocking portion having higher absorbance of the light than the light guide paths. The scattering portions are provided in an area overlapping the light-blocking portion of the optical filter layer on a surface of the light guide plate facing the optical filter layer.

The present disclosure provides a detection apparatus and an electronic device. In the detection apparatus, a first photodetector is disposed between two adjacent first light sources, and second light sources are located in a detection region enclosed by a plurality of first light sources and a plurality of first photodetectors. The first light source has a first distance H1 and a second distance H2 from at least two of all first photodetectors, and the second light source has a third distance H3 and a fourth distance H4 from at least two of all first photodetectors. The first light sources, the second light sources, and the first photodetectors are distributed in distribution regions of the detection apparatus. Each light source and one photodetector may form one PPG module, and an effective detection depth in skin may vary with a distance between the light source and the photodetector.

Acoustic sensor systems with different heights, as well as methods for configuring and operating such sensor systems are disclosed. In some embodiments, a sensor system described herein may include an acoustic receiver element; and an acoustic transmitter element; wherein the first portion of the piezoelectric material of the acoustic receiver element comprises a first thickness, and the second portion of the piezoelectric material of the acoustic transmitter element comprises a second thickness different from the first thickness; and wherein the isolation layer is structured to create a gap that physically separates the first portion of the second electrode layer from the second portion of the second electrode layer.

A fingerprint anti-counterfeiting method and apparatus, an electronic device and a storage medium are provided. The method includes: determining time-domain characteristic information and frequency-domain characteristic information of a target ultrasonic signal, where the target ultrasonic signal is an echo signal reflected back to an ultrasonic fingerprint module within a continuous time interval during which a fingerprint carrier enrolls a fingerprint via the ultrasonic fingerprint module; and determining authenticity of the fingerprint enrolled by the fingerprint carrier via the ultrasonic fingerprint module, based on the time-domain characteristic information and the frequency-domain characteristic information.

A foldable display device is disclosed that includes a flexible display panel, an optical module, and a deterioration compensator. The flexible display panel includes a folding line, a first display area disposed on a first side of the folding line, and a second display area disposed on a second side of the folding line to display a test image. The optical module is disposed in the first display area and is configured to sense a display luminance of the test image. The deterioration compensator is configured to perform a deterioration compensating operation of the display luminance by a luminance compensation value when the display luminance is less than a target luminance, without performing the deterioration compensating operation when the display luminance is greater than the target luminance.

The application provides a fingerprint identification device with small thickness and low cost and an electronic terminal. The fingerprint identification device comprises an optical film and an image sensor arranged along a first direction and at a first distance. The optical film comprises a first area and a second area with different light transmittances, and the first area and the second area form a first pattern. When the optical film receives light reflected from a first object, the optical film converts the light into an optical image with the first pattern and transmits the optical image to the image sensor. The image sensor is configured to receive an optical signal in the optical image and convert the optical signal into an electrical signal, and the electrical signal is used to construct an image of a surface of the first object reflecting the light. In an embodiment of the application, an electronic terminal comprising the aforementioned fingerprint identification device is provided.

This document describes methods and systems of adaptive fingerprint-enrollment to finger characteristics using local under-display fingerprint sensors, UDFPS, in an electronic device. The electronic device includes an adaptive-enrollment module that determines characteristics of a fingerprint based on information corresponding to a touch input detected by a touch-display device, including size and shape of an area of the touch input. Based on the fingerprint characteristics, a number and location of enrollment touches used for completing enrollment of the fingerprint are adjusted to minimize the number of enrollment touches required to complete the enrollment, minimize the amount of time needed to complete the enrollment, and maximize coverage of the fingerprint. The adaptive-enrollment module also provides visual guidance to guide the user to touch the adjusted locations of the enrollment touches and, if needed, feedback to instruct the user to adjust the location of their finger to align with the visual guidance.

A fingerprint sensor and a display device including the same are disclosed. The fingerprint sensor includes a substrate, a circuit element layer on a first surface of the substrate and including a plurality of conductive layers, a light emitting element layer on the circuit element layer and including a light emitting element and a light blocking layer, and a light sensor layer on a second surface of the substrate and including a light sensor, wherein the light blocking layer includes a contact hole exposing a first electrode of the light emitting element and a first opening portion exposing a portion of the circuit element layer, and the circuit element layer includes a second opening portion formed in the plurality of conductive layers and includes a light transmission hole of which at least a portion overlaps the first opening portion.

A user can removably adhere a transparent layer of a membrane to a platen of an optical biometric sensor. The membrane can include a transparent layer disposed between a protective cover sheet layer and a stiffener layer. The user can peel the protective cover sheet layer from the transparent layer to expose a first side of the transparent layer. The user can position the first side of the transparent layer against the platen such that the transparent layer is disposed between the platen and the stiffener layer. The transparent layer can adhere to the platen via optical contact bonding. The user can peel the stiffener layer from the transparent layer after the transparent layer has been adhered to the platen to expose a second side of the transparent layer. The stiffener layer and the protective cover sheet layer can optionally be similar or identical in material and structure.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a controller of a user device having a rollable display device may obtain fingerprint information associated with a user interaction with a contact area of the rollable display device. The controller may obtain touch information associated with the user interaction with the contact area of the rollable display device. The controller may output, based on the fingerprint information and the touch information, actuation information that causes actuation of a display extending component of the rollable display device to change an extension state of the rollable display device. Numerous other aspects are described.

A display device includes display pixels each including a light emitting part including a light emitting element and a pixel driver applying a driving current to the light emitting element, and light sensing pixels each including a light sensing part including an optical element and a sensing driver, the sensing driver applying a sensing current to a sensing line according to a photocurrent of the optical element. The sensing driver includes a first sensing transistor controlling the sensing current flowing through the sensing line according to a voltage of a first electrode of the optical element, and a second sensing transistor initializing the first electrode of the optical element to a first level voltage. A channel layer of the first sensing transistor and a channel layer of the second sensing transistor are made of different materials.

Flexible sensing apparatus and various configurations of sensor stacks associated therewith are disclosed. Example embodiments may include a sensing system having: a flexible printed board; a sensor stack including: a flexible and optically transparent substrate disposed on the flexible printed board, the flexible and optically transparent substrate comprising polyimide; and a flexible sensor element disposed adjacent to the flexible substrate, the flexible sensor element including a first stack of materials, the first stack of materials including: a piezoelectric layer; and a receiver element disposed adjacent to the piezoelectric layer and configured to detect one or more acoustic signals received through the flexible substrate; and a control system configured to determine a physiological characteristic associated with a target object based on the one or more acoustic signals, electrical signals generated by the piezoelectric layer, or optical signals detected by the receiver element.

An electromagnetic wave sensor device according to an aspect of the disclosure, comprising: a first sensor configured to perform an output in accordance with electromagnetic waves absorbed by a first quantum dot, an upper limit wavelength of electromagnetic waves absorbable by the first quantum dot being a first wavelength, a second sensor configured to perform an output in accordance with electromagnetic waves absorbed by a second quantum dot different from the first quantum dot, an upper limit wavelength of electromagnetic waves absorbable by the second quantum dot being a second wavelength longer than the first wavelength; and a calculation unit configured to calculate a difference between the output of the second sensor and the output of the first sensor.

The invention provides an ultrasonic fingerprint reading circuit and an ultrasonic fingerprint chip, and relates to the technical field of semiconductors. The ultrasonic fingerprint reading circuit comprises a detection module which is configured to convert an ultrasonic echo into a periodic echo voltage; the pixel integration module comprises a first switch assembly and a pixel integration operational amplifier; the scanning control module is connected with the first switch assembly and is used for configuring the pixel integration operational amplifier to perform periodic integration on the echo voltage in a first scanning time period and a second scanning time period and correspondingly outputting continuous echo integration voltage; and the sampling module is used for sampling the echo integral voltage for multiple times in the first scanning time period and the second scanning time period to obtain multiple sampling voltages, and the multiple sampling voltages are configured to execute differential operation to offset the offset error of the pixel integral operational amplifier to obtain a target signal. According to the technical scheme of the invention, the circuit design complexity is reduced, and the fingerprint reading precision is improved.

The invention provides a fingerprint identification module and method, electronic equipment, control equipment and a storage medium. The fingerprint identification module comprises a pixel circuit layer, a first electrode layer, a first piezoelectric film layer, a second electrode layer, a second piezoelectric film layer and a third electrode layer which are arranged in sequence, the first piezoelectric film layer is electrically connected with the pixel circuit layer through the first electrode layer, and the polarization methods of the first piezoelectric film layer and the second piezoelectric film layer are the same. In an emission state, voltage is applied between the second electrode layer and the third electrode layer to enable the first piezoelectric film layer to generate an ultrasonic signal, and the first electrode layer and the second electrode layer are disconnected. According to the fingerprint identification module, the partial pressure influence of the pixel circuit layer can be avoided, the sound pressure sensitivity of the fingerprint identification module is improved, and the energy consumption is reduced.

Flexible acoustic sensor systems using an acoustic lens are disclosed. In some embodiments, an apparatus may include: a platen having an imaging portion associated with a surface of the platen; a flexible substrate including an acoustic sensing element; and an acoustic lens disposed between the platen and the flexible substrate, the acoustic lens having a curvature configured to expand a propagation angle range of one or more acoustic signals emitted from the acoustic sensing element such that an area associated with the imaging portion is larger than an area associated with the acoustic sensing element; wherein the flexible substrate is constructed to conform to the curvature of the acoustic lens. In some implementations, the platen may include a curved platen having a curved surface configured to contact the body part of the user; and the flexible substrate may be constructed to conform to a curvature of the curved platen.

A display device is provided, the display device including: a display unit including a light emitting element that emits light; and a biometric information sensing unit disposed below the display unit, wherein the biometric information sensing unit receives light, and wherein the light indicates biometric authentication information, wherein the biometric information sensing unit includes: an optical system including a transmission portion that passes the light and an absorption portion around the transmission portion, wherein the absorption portion absorbs the light and pressure; a light detection sensor disposed below the transmission portion of the optical system, wherein the light detection sensor receives the light that passes through the transmission portion; and a pressure detection sensor disposed below the absorption portion of the optical system, wherein the pressure detection sensor detects the pressure transmitted from the absorption portion.

A display device includes a window, and a display module including a base layer including first and second areas, a first group of light-emitting elements the first area to be deactivated during a first operation mode, and activated during a second operation mode, a second group of light-emitting elements in the second area to be activated during the first and second operation modes, a first light-sensing element between the first and second groups, a first light-blocking layer defining a first opening corresponding to the first group, a second opening corresponding to the second group, and a third opening corresponding to the first light-sensing element, and a second light-blocking layer above the first light-blocking layer, apart from the first area in plan view, overlapping the second area, and defining a fourth opening corresponding to the second opening.

A texture recognition module. The texture recognition module includes: a substrate (1); a driving circuit layer (9) located on one side of the substrate, including a plurality of arrayed driving transistors (12); a first insulating layer (5) located on the side of the driving circuit layer away from the substrate, including a plurality of first vias (13) penetrating the thickness of the first insulating layer; a plurality of photoelectric conversion units (15) located on the side of the first insulating layer away from the driving circuit layer, which are in one-to-one contact with the first electrode of the driving transistor through the first vias; a second insulating layer (16) located on the side of the first insulating layer away from the substrate, including a plurality of second vias (17) corresponding to the photoelectric conversion units; the distance between the edge of the second via and the edge of the surface of the photoelectric conversion unit away from the substrate is less than or equal to a first preset value; a plurality of first electrodes (18) located on the side of the photoelectric conversion unit away from the driving circuit layer; each first electrode covers the photoelectric conversion unit in the second via.

A detection apparatus includes: a substrate; photodiodes each including a p-type semiconductor layer, an i-type semiconductor layer, and an n-type semiconductor layer; transistors provided for the respective photodiodes; an insulating film provided so as to cover the transistors; a first inorganic insulating film provided so as to cover the photodiodes; a first organic insulating film provided on the upper side of the first inorganic insulating film; and an upper conductive layer provided on the upper side of the first organic insulating film and electrically coupled to the photodiode. Each photodiode includes: first regions in each of which the p-type semiconductor layer, the i-type semiconductor layer, and the n-type semiconductor layer are directly in contact with one another; and a second region in which the p-type semiconductor layer and the i-type semiconductor layer are separate from each other. The adjacent first regions are coupled together by the p-type semiconductor layer.

A fingerprint capture device includes a removable, magnetically attached finger aperture selector to facilitate reconfiguration of the device to image a wide range of finger sizes and body regions. The device housing and the selector are also configured for one-handed use, based on the angle and location of the imaging actuator and the selector relative to the device handle. The device includes a camera calibration mount to facilitate adjustments to the camera alignment. Software that is usable with the device can normalize the fingerprint characteristics based on the age and individual characteristics of the subject being imaged.

A sensing device includes a first substrate, a first sensing element, a first light-shielding layer, a second light-shielding layer, and an insulating layer. The first sensing element is located on the first substrate. The first light-shielding layer is located on the first sensing element and has a first opening, wherein the first opening completely overlaps the first sensing element. The second light-shielding layer is located on the first light-shielding layer and includes an upper light-shielding portion and a side light-shielding portion, wherein the upper light-shielding portion overlaps the first light-shielding layer and has a second opening, and the side light-shielding portion is separate from the upper light-shielding portion. The insulating layer is located between the first light-shielding layer and the second light-shielding layer, and the side light-shielding portion covers the sidewall of the insulating layer.

To provide a semiconductor device capable of performing authentication in a short time.SOLUTION: A semiconductor device comprising: a light-emitting device; and an imaging device. The imaging device includes a row driver circuit, and the row driver circuit includes first to m-th latch circuits (m is an integer of 2 or more) and first to m-th register circuits. A first start pulse signal is input to the first latch circuit, and a second start pulse signal is input to the first to m-th latch circuits. Scan signals output from the first to m-1-th register circuits are input to the second to m-th latch circuits, respectively. The first latch circuit has a function of outputting one of a first start pulse signal and a second start pulse signal to the first register circuit in accordance with the retained data. The second to m-th latch circuits have a function of outputting one of a scan signal and a second start pulse signal to the second to m-th register circuits in accordance with the retained data.SELECTED DRAWING: Figure 3

The invention relates to a method for manufacturing a biometric sensor module (4) for a smart card, comprising steps, during which a dielectric support (101) having a front face and a rear face is provided, the front face being coated with an electrically conductive layer, in which a bezel (5) is formed, at least one conductive via (104) being produced in the thickness of the support (101) for electrically connecting the bezel (5) to the rear face. A protective layer (108) is produced in the front face, covering a protective area, located inside the bezel (5), and a biometric sensor (300) is attached for the detection of fingerprints at the rear face, wherein a detection zone covered by the sensor (300) on the rear face is placed facing the protective area.