Abstract: A display arrangement comprising an optical biometric imaging device for imaging a biometric object comprising: an image sensor comprising a plurality of photodetector pixels; a lens arrangement comprising at least one lens configured to focus light reflected by a biometric object onto the image sensor; an aperture layer arranged between the object to be imaged and the image sensor, wherein the aperture layer comprises an aperture configured to limit the amount of light reaching the image sensor; and a filter element arranged in the aperture and configured to block light within a first wavelength range, wherein an area of the filter element is smaller than an area of the aperture so that a portion of light within the first wavelength range reaching the aperture layer pass through the aperture.

Abstract: An apparatus for direct optical recording of security-related objects with a series of layers comprising a cover layer with an object placement surface, a sensor layer, a spacer layer with spacer structures for limiting light incident from the placement surface to small incident angles on the sensor layer, and a substrate as carrier of the series of layers. To capture security-related objects with good contrast over a large surface, the sensor pixels have a light-sensitive element and a passage region, and the spacer layer is produced by spacer structures provided on the sensor layer or by spacer structures formed from existing raised-shaped function elements, and the spacer layer comprises cutouts in the region of the entrance aperture of every light-sensitive element, each cutout filled with a medium having a refractive index lower than that of the sensor layer and a layer adjoining in a direction of the placement surface.

Abstract: The embodiments of the disclosure provide a method for interacting with a virtual world, a host, and a computer readable storage medium. The method includes: determining a hand gesture and accordingly determining an indicator in the virtual world; in response to determining that the hand gesture is a pinch gesture, performing a specific function corresponding to a position indicated by the indicator in the virtual world or a specific object indicated by the indicator in the virtual world.

Abstract: A fingerprint sensor package includes a first substrate having a core insulating layer with a first surface and a second surface, and a through-hole passing through the first surface and the second surface, a first bonding pad disposed on the second surface of the core insulating layer, and an external connection pad, a second substrate disposed in the through-hole of the core insulating layer and including a plurality of first sensing patterns, a plurality of second sensing patterns, and a second bonding pad, a conductive wire connecting the first bonding pad and the second bonding pad to each other, a controller chip disposed on the second substrate, and a molding layer disposed on the second surface of the core insulating layer, filling the through-hole, covering the second substrate and the first bonding pad, and spaced apart from the external connection pad.

Abstract: A force sense presentation device that presents a force sense force by forming a dynamic quantity distribution on a skin of a person includes a plurality of stimulation elements and a controller. Each of the plurality of stimulation elements stimulates the skin of the person. The controller controls the plurality of stimulation elements such that a dynamic quantity distribution for generating a target force sense is formed on the skin. An interval between the adjacent stimulation elements is an interval enabling presentation of a spatially continuous force sense. The force sense generates a self-kinesthetic sense of the person.

Abstract: A display substrate and a display apparatus are provided. The display substrate includes: a base substrate; a plurality of sub-pixels arranged on the base substrate, wherein the sub-pixels each include a sub-pixel driving circuit; a plurality of fingerprint recognition structures arranged on the base substrate, wherein the fingerprint recognition structures each include a control circuit and a fingerprint recognition electrode, the fingerprint recognition electrode is located on a side of the control circuit facing away from the base substrate, the control circuit is coupled to the fingerprint recognition electrode, and the control circuit is used for outputting a sensing signal from the fingerprint recognition electrode; wherein the control circuit and the sub-pixel driving circuit are arranged in a direction parallel to the base substrate.

Abstract: Fingerprint authentication is realized during a swipe operation of a display. An electronic device includes a display, an optical fingerprint sensor, and an information processing unit. The display includes a display surface having light emitting pixels in an array in a first direction and a second direction intersecting the first direction. The optical fingerprint sensor includes an imaging element having light receiving elements in an array in a first direction and a second direction on a side opposite to the display surface of the display in a third direction intersecting the first direction and the second direction, and acquires fingerprint information of fingerprint moving in contact with the display. The information processing unit acquires corrected fingerprint information from the fingerprint information acquired by the optical fingerprint sensor.

Abstract: A pixel circuit includes a light-emitting element, a capacitor structure, a driving transistor, and first to fourth switching elements. The first switching element connects a data line for providing a data signal to a first terminal of the capacitor structure in response to a first scan signal. The second switching element connects a first terminal of the driving transistor to a control terminal of the driving transistor and a second terminal of the capacitor structure respectively in response to a second scan signal. The third switching element connects a second terminal of the driving transistor to a first terminal of the light-emitting element in response to a third scan signal. The fourth switching element connects a first power signal terminal to the first terminal of the driving transistor in response to a fourth scan signal.

Abstract: A display arrangement comprising an optical biometric imaging device for imaging a biometric object comprising: an image sensor comprising a plurality of photodetector pixels; a lens arrangement comprising at least one lens configured to focus light reflected by a biometric object onto the image sensor; an aperture layer arranged between the object to be imaged and the image sensor, wherein the aperture layer comprises an aperture configured to limit the amount of light reaching the image sensor; and a filter element arranged in the aperture and configured to block light within a first wavelength range, wherein an area of the filter element is smaller than an area of the aperture so that a portion of light within the first wavelength range reaching the aperture layer pass through the aperture.

Abstract: An electronic apparatus is provided. The electronic apparatus includes a display; a sensor configured to detect a fingerprint of a user on the display; and a processor configured to: identify the fingerprint of the user based on information from the sensor; and control the display to display a path configured to guide a user touch on the display to move to a boundary of the display from a first region where the fingerprint has been detected.

Abstract: A method of evaluating a dielectric structure, comprising the steps of a) changing a potential difference between each sensing structure in a first set of sensing structures and each sensing structure in a second set of sensing structures, and to providing, for each sensing structure in the first set of sensing structures, a sensing signal indicative of a strength of a capacitive coupling between each sensing structure in the second set of sensing structures and the sensing structure in the first set of sensing structures; b) assign other sensing structures to the first set of sensing structures and the second set of sensing structures; c) performing step a) and step b) until a respective sensing signal has been provided for each sensing structure in the plurality of sensing structures; and d) providing an evaluation result based on the respective sensing signals.

Abstract: Systems, methods, and non-transitory media are provided for dynamically switching frame rates without changing a display refresh rate. An example method can include receiving, from a display device associated with a computing device, a set of control signals indicating a display refresh rate implemented by the display device; adjusting a frame rate associated with application data from one or more applications executed on the computing device; synchronizing, based on the set of control signals, the adjusted frame rate with two or more display refresh cycles, each display refresh cycle being based on the display refresh rate; providing, to the display device, a first frame at the adjusted frame rate, the first frame being generated based on the application data; and displaying the first frame at the display device implementing the display refresh rate.

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.

Abstract: Provided is a stereoscopic surface display device including a stereoscopic display unit having a cell area, wherein the stereoscopic display unit includes a first flexible layer, a first optical waveguide and a first optical output unit in the first flexible layer, wherein the first optical output unit are disposed in the cell area, a first light source disposed on a side of the stereoscopic display unit, wherein the first optical waveguide connects the first light source and the first optical output unit, a first photothermal response layer on the first flexible layer, wherein the first photothermal response layer is configured to receive output light emitted from the first optical output unit and emit thermal energy, and a shape deformation layer on the first photothermal response layer, wherein the shape deformation layer is configured to generate bending deformation by receiving the thermal energy from the first photothermal response layer.

Abstract: A current reference operative drive-sense circuit (DSC) includes a current source operably coupled to a load and a voltage-mode analog to digital converter (ADC). When enabled, the current source configured to drive a sinusoidal current reference signal to the load thereby generating a load voltage that is based on the sinusoidal current reference signal and an impedance of the load. The voltage-mode ADC is operably coupled the load and to the current source. When enabled, the voltage-mode ADC configured to perform digital sampling of the load voltage and to generate a digital signal that is representative of the load voltage. In some implementations, one or more processing modules configured to execute operational instructions to process the digital signal that is representative of the load voltage in accordance with determining impedance of the load and/or change of impedance of the load.

Abstract: In one example, a method comprises: receiving an indication that an object is within a distance from an array of ultrasonic transducers; based on the indication, configuring a subset of the array of ultrasonic transducers to perform an ultrasonic sensing operation on the object; obtaining, from the subset of the array of ultrasonic transducers, an output of the ultrasonic sensing operation; and performing an action based on the output of the ultrasonic sensing operation.

Abstract: A fingerprint sensor and a display device include a substrate. A circuit element layer is disposed on a first surface of the substrate and includes a semiconductor layer, conductive layers and at least one opening portion. A light emitting element layer is disposed on the circuit element layer and includes at least one light emitting element. A sensor layer is disposed on a second surface of the substrate and includes at least one light sensor corresponding to the opening portion. The opening portion is defined by non-overlapping of the semiconductor layer and the conductive layers, the opening portion has a closed loop shape in plan view, and at least a portion of the closed loop shape includes a curve, or an internal angle of the at least a portion of the closed loop shape is an obtuse angle.

Abstract: A texture recognition device and a manufacturing method thereof are provided. The texture recognition device includes a backlight component and a photosensitive component. The photosensitive component is on a light-outputting side of the backlight component and configured to detect light emitted by the backlight component and reflected by a texture of a detection object to recognize an image of the texture of the detection object. The photosensitive component includes a plurality of photosensitive sensors and an antistatic layer on a side, away from the backlight component, of the plurality of photosensitive sensors, and orthographic projections of the plurality of photosensitive sensors on a plane where the antistatic layer is located are within the antistatic layer.

Abstract: A display device includes a display area including a first pixel area, in which pixels including subpixels of a first arrangement structure are disposed, and a second pixel area, in which pixels including subpixels of a second arrangement structure are disposed, a panel driver which provides a driving signal to the display area, and a data processor which converts first image data to second image data, where the first image data corresponds to the boundary subpixel of a first boundary pixel located adjacent to the second pixel area, among the pixels of the first pixel area, and the boundary subpixel of a second boundary pixel adjacent to the first boundary pixel, among the pixels of the second pixel area. The data processor determines the boundary subpixels of the first and second boundary pixels based on boundary types indicating positional relationships between the first and second boundary pixels.

Abstract: Some disclosed methods involve controlling a fingerprint sensor system to scan a portion of a user's digit on a surface of an apparatus using a plurality of trial fingerprint sensor system parameters and selecting, from among the trial fingerprint sensor system parameters, one or more personalized fingerprint sensor system parameters for inclusion in a set of personalized fingerprint sensor system parameters. Some disclosed methods involve selecting, based on the one or more personalized fingerprint sensor system parameters, an existing fingerprint sensor system parameter data structure that includes a set of existing fingerprint sensor system parameters, obtaining additional fingerprint sensor system parameters from the set of existing fingerprint sensor system parameters for inclusion in the set of personalized fingerprint sensor system parameters, and storing the set of personalized fingerprint sensor system parameters for future scans of the fingerprint sensor system.