Abstract: Disclosed are a display substrate, a display device and a detection method by using a display device. The display substrate includes at least one sub-pixel. the at least one sub-pixel includes a first region and a second region, and the at least one sub-pixel includes a light emitting element which is arranged in the first region, and a pixel circuit structure and a photosensitive stucture which are arranged in the second region, the pixel circuit structure and the photosensitive structure are stacked, and the photosensitive structure is closer to a light exiting side of the display substrate than the pixel circuit structure.

Abstract: The present disclosure provides an optical detection pixel unit, an optical detection pixel circuit, an optical detection method and a display device. The optical detection pixel unit comprise a photosensitive element and a detection transistor, wherein the photosensitive element has a first electrode connected with a photovoltage terminal, and a second electrode connected with a gate of the detection transistor; the photosensitive element is configured to detect an optical signal under the control of the photovoltage terminal; and the detection transistor has a first electrode connected with a detection voltage line, and a second electrode connected with a reading line.

Abstract: An operation method of a texture recognition device and a texture recognition device are provided. The texture recognition device includes a light source array and an image sensor array; the light source array includes a plurality of light sources; the image sensor array includes a plurality of image sensors, which are configured to receive light emitted from the light sources and reflected to the image sensors by a texture for a texture collection; the operation method includes: in a process of the texture collection performed by the image sensor array, lighting a first group of light sources continuously arranged in a first pattern at a first moment, so that the first group of light sources continuously arranged in the first pattern serve as a photosensitive light source for the image sensor array, in which a length-width ratio of a region occupied by the first pattern is larger than two.

Abstract: A fingerprint identification and detection circuit, a fingerprint identification and detection method and a display device are provided. The fingerprint identification and detection circuit includes a storage capacitor, a capacitor control circuit and a photoelectric conversion element; the photoelectric conversion element is configured to, when in a photoelectric conversion state, convert a received optical signal into a corresponding electrical signal; the capacitor control circuit is provided between the storage capacitor and the photoelectric conversion element, and is configured to perform control to store at least part of the electrical signal to the storage capacitor under control of a capacitor control signal.

Abstract: The present invention is related to processes for preparing a composition comprising (R)-3-(4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl)-3-cyclopentylpropanenitrile, and related synthetic intermediate compounds. This compound is useful as an inhibitor of the Janus Kinase family of protein tyrosine kinases (JAKs) for treatment of inflammatory diseases, myeloproliferative disorders, and other diseases.

Abstract: Embodiments of the present disclosure provide a current amplification circuitry and a driving method thereof, and a fingerprint detection device. The current amplification circuitry includes a voltage control circuit, a plurality of first current amplification circuits, and a second current amplification circuit. The voltage control circuit provides a voltage control signal to the plurality of first current amplification circuits. The first current amplification circuit includes a current mirror, and the current mirror is coupled to a voltage input terminal, the voltage control circuit, and a first input terminal of the second current amplification circuit. The first current amplification circuit amplifies a current from the voltage input terminal according to the voltage control signal provided by the voltage control circuit, and provides the amplified current to the second current amplification circuit.

Abstract: Embodiments of the present disclosure provide a force touch display panel, a detection method thereof, and a display apparatus. The force touch display panel includes: a substrate; a display structure disposed in a display area on the substrate; and a force common electrode layer, a piezoelectric material layer, and a force sense electrode layer, which are stacked in sequence over the display structure. The force sense electrode layer includes a force sense electrode configured for identifying different forces, and the force sense electrode additionally serves as a touch detection electrode configured for identifying a touch operation.

Abstract: A dermatoglyphics data acquisition device, an acquisition method thereof and a display device are disclosed. The acquisition method of dermatoglyphics data includes: detecting a touch region of a dermatoglyphics on a touch device by a capacitive touch control circuit; selecting a touch center region in the touch region and selecting a characteristic region in the touch center region by a controller, according to a signal amount distribution of a touch signal generated by dermatoglyphics contact in the touch region, and determining the characteristic region as a dermatoglyphics scan region by the controller; and scanning a dermatoglyphics in the dermatoglyphics scan region and generating the dermatoglyphics data by a dermatoglyphics identification circuit.

Abstract: A fingerprint identification display device, includes: a display panel having a plurality of display units defined therein, and at least some of the plurality of display units are located in a fingerprint identification region, each of which comprises display subpixels and an identification subpixel; a light guide plate; one or more light emitting components configured to make detection light emitted therefrom travel in the light guide plate in a total reflection manner; a first polarizer comprising a first region and a second region with perpendicular polarization directions, and a second polarizer comprising a third region and a fourth region with perpendicular polarization directions, wherein the first region and the third region correspond to the display subpixels and have perpendicular polarization directions, and the second region and the fourth region correspond to the identification subpixel; and a photosensitive sensing unit disposed at the second polarizer, and corresponding to the identification su

Abstract: An operation method of a texture recognition device and a texture recognition device are provided. The texture recognition device includes a light source array and an image sensor array; the light source array includes a plurality of light sources; the image sensor array includes a plurality of groups of image sensors; and the operation method includes: in a first period, allowing the light source array to operate to provide a first photosensitive light source, allowing a first group of image sensors that can receive first light emitted by the first photosensitive light source and reflected by the texture to be in a state of sensing and generating a detection electrical signal, and allowing at least one group of image sensors that can receive the first light except the first group of image sensors to be in a state of not sensing and not generating a detection electrical signal.

Abstract: Provided are a compensation structure and a driving method thereof, a display panel, and a display device. The compensation structure includes a photoelectric sensing circuit, a fingerprint recognition circuit and a compensation circuit. The photoelectric sensing circuit is configured to respectively generate a first electric signal and a second electric signal according to received first optical signal and second optical signal. The fingerprint recognition circuit is configured to be connected to the photoelectric sensing circuit to receive the first electric signal, and to employ the first electric signal to determine a fingerprint pattern. The compensation circuit is configured to be connected to the photoelectric sensing circuit to receive the second electric signal, and to employ the second electric signal to perform optical compensation so as to adjust the first electric signal.

Abstract: The present disclosure relates to a circuit for fingerprint identification and a driving method thereof, a display panel, and a display device. The circuit for fingerprint identification of the present disclosure includes a voltage adjustment circuit, a photodiode, and a signal output circuit; wherein the voltage adjustment circuit is electrically connected with an anode of the photodiode, and the signal output circuit is electrically connected with a cathode of the photodiode; the voltage adjustment circuit is configured to adjust an anode voltage input to the photodiode to enable the photodiode to work in a linear region; and the signal output circuit is configured to amplify and output a signal output by the photodiode.

Abstract: A fingerprint identification display device, includes: a display panel having a plurality of display units defined therein, and at least some of the plurality of display units are located in a fingerprint identification region, each of which comprises display subpixels and an identification subpixel; a light guide plate; one or more light emitting components configured to make detection light emitted therefrom travel in the light guide plate in a total reflection manner; a first polarizer comprising a first region and a second region with perpendicular polarization directions, and a second polarizer comprising a third region and a fourth region with perpendicular polarization directions, wherein the first region and the third region correspond to the display subpixels and have perpendicular polarization directions, and the second region and the fourth region correspond to the identification subpixel; and a photosensitive sensing unit disposed at the second polarizer, and corresponding to the identification su

Abstract: Disclosed are an apparatus for recognizing a fingerprint, a display device, and the apparatus includes: a display panel, light sources, a supporting element, an optically-coupling element, a photo-detecting element on optical paths of the light sources, a processing element; the light sources, the supporting element are on side of a second surface of the display panel; the supporting element supports light sources so that light rays exiting light sources are incident obliquely onto the display panel; the optically-coupling element, the photo-detecting element are on the second surface; the photo-detecting element is on side of the optically-coupling element away from light sources; the optically-coupling element makes light rays emitted from light sources totally reflect in the display panel; the photo-detecting element detects exiting light after light rays exiting the light sources are reflected by the display panel, transmits detected signals to the processing element; the processing element determines a f

Abstract: The present disclosure relates to the field of display technologies, and provides a touch substrate and a display panel. Specifically, the touch substrate comprises: a pixel array and a light sensing device array arranged oppositely; a light shielding layer between the pixel array and the light sensing device array; and a lens array on a side of the light shielding layer remote from the light sensing device array. The pixel array comprises a plurality of pixel units, each pixel unit comprising a plurality of sub-pixels. The lens array comprises a plurality of lens units. The light sensing device array comprises a plurality of light sensing devices. The light shielding layer is provided with a plurality of via holes.

Abstract: A fingerprint recognition module and a driving method thereof, and a display device. The fingerprint recognition module includes a substrate, an electrode layer located on one side of the substrate, a piezoelectric film layer located on one side, away from the substrate, of the electrode layer, and a reference electrode layer located on one side, away from the electrode layer, of the piezoelectric film layer, wherein the electrode layer includes a plurality of receiving electrodes arranged in an array and a plurality of transmitting electrodes, and the receiving electrodes and the transmitting electrodes are insulated from each other and are spaced with each other.

Abstract: A texture recognition method, a texture recognition device, and a display device. The texture recognition method includes: receiving a texture recognition signal by using a light blocking structure having a light transmission aperture; performing an amplification process on the texture recognition signal to obtain an amplified texture recognition signal; and detecting a valley line and a ridge line in a texture based on the amplified texture recognition signal.

Abstract: The disclosure provides a touch display substrate and a touch display device. The touch display substrate includes: a substrate; a plurality of ultrasonic sensors disposed on the substrate; and one ultrasonic generator disposed on the substrate. The ultrasonic generator has a plurality of openings, and at least one of the plurality of ultrasonic sensors is disposed in at least one of the openings.

Abstract: A display panel and a method of fabricating the same, and a display device are provided, the display panel includes a display substrate a package substrate opposite to each other, the display substrate includes a first base substrate; and a first electrode, an electroluminescent layer and a second electrode disposed on the first base substrate in sequence; the package substrate includes a second base substrate; and a conductive layer on the second base substrate, the conductive layer and the second electrode facing towards each other; the display panel further includes a conductive adhesive between the second electrode and the conductive layer, the conductive adhesive is configured to bond the display substrate with the package substrate, and electrically connect the second electrode with the conductive layer.

Abstract: The present disclosure provides an optical touch device and a manufacturing method thereof, a display and an electronic device, wherein the optical touch device comprises: a pixel array (11) that comprises a plurality of pixel sub-circuits (101) each of which comprises M first pixels (1011) and N second pixels (1012), wherein detection rays with a preset frequency are emitted by the second pixels (1012), where M and N are positive integers; a light receiving array (12) that comprises a plurality of light receivers (121) corresponding, at a one-to-one basis, to the plurality of pixel sub-circuits (101), wherein each of the light receivers (121) generates an sensing signal by receiving reflected rays of the detection rays emitted by a corresponding second pixel (1012); and a detection circuit (13) connected with the plurality of light receivers (121), wherein the detection circuit (13) performs touch positioning.