Abstract: A display panel which may include a plurality of sub-pixel units (1) and a plurality of photosensitive detection units (2) corresponding to the plurality of sub-pixel units (1) respectively. Each of the plurality of the photosensitive detection units (2) may include at least two photosensitive sensors (21).

Abstract: The present disclosure provides a microfluidic substrate, a microfluidic chip and a detection method. The microfluidic substrate according to the present disclosure includes a first substrate, and a plurality of droplet detecting elements on the first substrate and in an array. Each of the plurality of droplet detecting elements includes an ultrasonic conversion device and a voltage detecting element, the ultrasonic conversion device is configured to generate ultrasonic wave according to a first electric signal, receive a reflected ultrasonic wave, and convert the reflected ultrasonic wave into a second electric signal; and the voltage detecting element is configured to detect the second electric signal and determine whether a droplet exists at a position where the droplet detecting element is located based on the second electric signal.

Abstract: A microfluidic circuit includes a detection capacitor, having a first terminal and a second terminal that are spaced apart from one another to thereby form a space therebetween. The circuit is configured to detect a droplet present in the space by detecting a change of a capacitance value of the detection capacitor caused by a change of a dielectric constant between the first terminal and the second terminal, and to drive a formation of an electrical field formed using at least one of the first terminal and the second terminal of the detection capacitor to thereby drive the droplet to move in the electrical field.

Abstract: The present disclosure provides a fingerprint detecting device, including: a photosensitive sensing component, a first electrode of which is coupled to a reference signal terminal, a second electrode of which is coupled to a pull-down node; a reset component, coupled to a reset terminal and the pull-down node, configured to reset the pull-down node in a first stage; a voltage output component, coupled to the pull-down node, a selection terminal and an output terminal of the fingerprint detecting device, configured to output a voltage signal to the output terminal of the fingerprint detecting device according to the potential of the pull-down node, the first stage to a second stage, an amount of change in a voltage signal output to the output terminal of the fingerprint detecting device is positively correlated with an amount of change in the potential of the pull-down node.

Abstract: The present disclosure is related to an ultrasonic fingerprint detection assembly. The ultrasonic fingerprint detection assembly may include an ultrasonic fingerprint detection circuit and a living body detection circuit. The living body detection circuit may be configured to carry out living body detection at a rest stage of the ultrasonic fingerprint detection circuit.

Abstract: A fingerprint recognition device, a recognition device and a display device are provided to include: a light guiding layer and a plurality of recognizer units, on a side of a light transmission substrate. Each recognizer unit includes: a first optical grating which is between the light guiding layer and the light transmission substrate and is configured to diffractively couple a fingerprint light ray having an incident angle within a preset angle range to the light guiding layer; a second optical grating on a side of the light guiding layer; and a detector module on a side of the second optical grating away from the light guiding layer. The second optical grating is configured to extract the fingerprint light ray in the light guiding layer to the detector module, and the detector module is configured to detect a light intensity of the fingerprint light ray.

Abstract: A piezoelectric sensor assembly, a manufacturing method thereof, a display panel and an electronic device including the same are provided. The piezoelectric sensor assembly includes: a base substrate; a plurality of ultrasonic transducers, wherein a spacing area is provided between two adjacent ultrasonic transducers; and an acoustic matching layer, wherein the acoustic matching layer includes a plurality of acoustic matching areas, and an orthographic projection of at least one acoustic matching area on the base substrate falls into an orthographic projection of the ultrasonic transducer corresponding to the acoustic matching area on the base substrate, wherein an isolation cavity is provided between two adjacent acoustic matching areas.

Abstract: Embodiments of the present disclosure provide a fingerprint identification device, an array substrate, a display device and a fingerprint identification method. The fingerprint identification device includes: a first gate line, a second gate line, a read signal line and a voltage dividing unit, wherein, a plurality of fingerprint identification units are defined by the second gate line and the read signal line intersecting with each other, and the fingerprint identification unit includes a photosensitive member and a thin film transistor; the first gate line is connected with the voltage dividing unit, the voltage dividing unit includes a pressure sensitive member and an equivalent resistor connected in series, and the second gate line is connected between the pressure sensitive member and the equivalent resistor.

Abstract: The present disclosure generally relates to the field of display technology, and in particular to a fingerprint recognition device and a display device having the fingerprint recognition device. A fingerprint recognition device includes a substrate; a plurality of point light sources on the substrate, which are configured to emit light; a plurality of light sensors on the substrate, which are configured to generate an electrical signal based on the light emitted from the plurality of point light sources and reflected from a touch surface, and a display layer on the plurality of light sensors.

Abstract: The embodiments of the present disclosure relate to a light collimating structure. The light collimating structure may include a plurality of stacked base substrates in a first direction and a pinhole film between two adjacent base substrates. The pinhole film comprises a plurality of light-passing openings in a second direction configured to allow light within a half-light receiving angle to pass through the light-passing openings.

Abstract: A display panel includes a plurality of pixels arranged in an array; a plurality of first sensor units (2) in the array, each first sensor unit (2) being coupled to at least one of the plurality of pixels and being configured to detect brightness of the at least one of the plurality of pixels; and a plurality of second sensor units (3) in the array, each second sensor unit (3) being coupled to at least one of the plurality of first sensor units (2) and being configured to detect a variation in at least one environmental parameter of the at least one of the plurality of pixels. Each first sensor unit (2) includes a first photo sensor (S1). Each second sensor unit (3) comprises a second photo sensor (S2) and a shielding layer on a light-receiving surface of the second photo sensor (S2).

Abstract: The present application provides an integrated fingerprint detection touch control display apparatus. The integrated fingerprint detection touch control display apparatus includes a plurality of fingerprint sensing driver circuits respectively configured to independently control fingerprint detection respectively in a plurality of sensing regions in the integrated fingerprint detection touch control display apparatus; a touch sensing driver circuit configured to control touch detection in the integrated fingerprint detection touch control display apparatus; a counter substrate; and an array substrate facing the counter substrate.

Abstract: The present disclosure provides an ultrasonic fingerprint sensor, a display substrate, a driving method thereof and a display device. The ultrasonic fingerprint sensor includes: a base substrate; a driving structure provided on the base substrate and configured to transmit an ultrasonic signal; a receiving structure provided on the base substrate and configured to receive the ultrasonic signal reflected by a finger, and convert the ultrasonic signal into an electrical signal for determining fingerprint information, the driving structure and the receiving structure are provided in a same plane. Since the driving structure and the receiving structure of the ultrasonic fingerprint sensor of the present disclosure are in a same plane, the driving structure can be closer to the touch body (for example, a finger), which is advantageous for the ultrasonic waves generated by the driving structure to reach the finger to improve the touch accuracy.

Abstract: The present disclosure relates to the field of display technology, and more particularly, to a pixel circuit, a driving method thereof, and a display device. The pixel circuit may comprise a first switch element, a driving transistor, a storage capacitor, a second switch element, and a photosensitive element.

Abstract: Embodiments of the present application provide acoustic wave signal reading apparatuses, acoustic wave signal reading circuits, and control methods thereof related to the field of acoustic wave signal reading technology. One embodiment of an acoustic wave signal reading circuit comprises: an acoustic wave receiver, a reset control circuit, a function circuit, and an output circuit; an acoustic wave receiver is configured to convert a received acoustic wave signal into an electrical signal and outputs the electrical signal to a first node; the reset control circuit outputs a voltage to the first node; the function circuit switches states based on the first node, a signal terminal, and a voltage terminal, and outputs a voltage to a second node to reset the second node or amplifies a potential of the first node and outputs to the amplified potential to the second node depending on a state of the function circuit.

Abstract: An array substrate includes a substrate, a packaging layer, and at least one sensor. The packaging layer is over the substrate. Each sensor includes a sensing thin-film transistor and a sensing unit, electrically coupled with each other. The sensing thin-film transistor is between the package layer and the substrate, and the sensing unit is over a side of the package layer away from the substrate. The array substrate can also include a plurality of display thin-film transistors. The sensing thin-film transistor in each sensor can be at substantially same film layers, or of a same structure and a same type, as each display thin-film transistor.

Abstract: Disclosed are a display device and a method for adjusting its display brightness. The display device includes a display screen and an ambient light sensor in the display screen, wherein the ambient light sensor includes a photodeformable element, and the photodeformable element includes a photodeformable material layer; and the photodeformable element is configured to deform in response to a change in ambient light to obtain output of the ambient light sensor. The ambient light sensor has a simple structure and is easy to be made and to be combined with the display screen.

Abstract: The present disclosure is related to a light emitting diode. The light emitting diode includes a first transparent electrode layer; a light emitting layer on the first transparent electrode layer; a reflective electrode layer on a surface of the light emitting layer opposite from the first transparent electrode layer, and a second transparent electrode layer. The reflective electrode layer may include transmission hole. The second transparent electrode layer may cover or fill the transmission hole. The transmission hole may be configured to transmit light emitted from the light emitting layer to pass through the second transparent electrode layer.

Abstract: An electrical signal detection module includes a photoelectrical signal application circuitry, an operational amplifier, a gain control circuitry and a master control circuitry. The gain control circuitry includes at least two gain control sub-circuitries connected in parallel to each other, and a discharge switching sub-circuitry connected in parallel to the gain control sub-circuitries. Each gain control sub-circuitry includes a gain switching sub-circuitry and a gain capacitive sub-circuitry connected in series to each other. The master control circuitry is configured to apply a discharge switching signal to the discharge switching sub-circuitry, and apply a gain switching control signal to the corresponding gain switching sub-circuitry. The gain switching sub-circuitry is configured to control a first end and a second end of the gain switching sub-circuitry to be electrically connected to each other in accordance with the gain switching control signal.

Abstract: A display panel includes a substrate, an organic light-emitting layer disposed over the substrate and having at least one pixel, and at least one optical sensor disposed over the substrate distal from the organic light-emitting layer; wherein the at least one pixel is configured to display an image and as a light source for the at least one optical sensor to realize pattern identification.