Abstract: The present disclosure provides an ultrasonic module, an ultrasonic sensor and a display screen, and belongs to a display technical field, and may at least partly solve the problem that the current ultrasonic module has a low conversion rate of the ultrasonic wave.

Abstract: The present disclosure provides an ultrasonic sensor, a method for driving the same, and a method for manufacturing the same. The ultrasonic sensor includes a back plate, a sounding structure on the back plate and a backing layer on a side of the sounding structure distal to the back plate; the sounding structure includes a plurality of emitting electrodes, an opposite electrode, a piezoelectric layer and a plurality of signal leads, and the plurality of emitting electrodes and the opposite electrode are respectively arranged on two sides of the piezoelectric layer; and the plurality of emitting electrodes are arranged in an array, and each of the emitting electrodes is individually coupled to one of the signal leads. The ultrasonic sensor may achieve an independent control for each patterned electrode such that the ultrasonic sensor may be used as a point sound source.

Abstract: An optical pressure touch device, a manufacturing method thereof, and a touch display apparatus, so as to reduce the influence on the display effect while realizing the touch function. The optical pressure touch device includes a first substrate, a second substrate opposite to the first substrate, a light source, and a photodetector array and a touch scanning circuit located on a side of the first substrate facing the second substrate, the touch scanning circuit being electrically connected to a photodetector in the photodetector array. A gap exists between the touch scanning circuit and the second substrate, and the light source is used to generate a light field within the gap.

Abstract: A transmission line substrate includes a stacked body that includes insulating base materials, first and second signal lines, and first and second ground conductors. The second signal line is provided on a layer different from the layer of the first signal line and extends in parallel with the first signal line. The first ground conductor is provided on the same layer as the layer of the second signal line and overlapped with the first signal line when viewed in the Z-axis direction. The second ground conductor is provided on the same layer as the layer of the first signal line and overlapped with the second signal line when viewed in the Z-axis direction. A first transmission line includes the first signal line, the first ground conductor, and an insulating base material, and a second transmission line includes the second signal line, the second ground conductor, and the insulating base material.

Abstract: The present application provides a display panel, a display device and a method for driving the display panel. The display panel includes a control unit layer, an organic light emitting device structure and a liquid crystal display device structure, wherein the control unit layer is electrically coupled to the organic light emitting device structure and the liquid crystal display device structure, respectively, and an electrode of the organic light emitting device structure and an electrode of the liquid crystal display device structure are at least partially shared.

Abstract: At least one embodiment of the present disclosure provides a fingerprint identification structure and a display device. At least one embodiment of the present disclosure provides a fingerprint identification structure, including: an ultrasonic emission component including a plurality of ultrasonic emission units arranged in a two-dimensional array in directions parallel to a plane; and an ultrasonic detection component including a plurality of ultrasonic detection units arranged in a two-dimensional array in the directions parallel to the plane. The ultrasonic emission component and the ultrasonic detection component are two independent structures, and an orthographic projection of at least one ultrasonic detection unit on the plane is included between orthographic projections of two adjacent ones of the plurality of ultrasonic emission units on the plane.

Abstract: An ultrasonic fingerprint recognition module is described that includes sensing units distributed in the form of array, where the sensing units include: a receiving electrode layer having a plurality of receiving electrodes distributed in the form of array; a piezoelectric material layer disposed on one side of the receiving electrode layer; an emission electrode layer disposed on a side of the piezoelectric material layer distal to the receiving electrode layer, and including a plurality of rows of emission electrodes; a selection circuit having an input terminal which is connected with an excitation signal and an output terminal which is connected with the emission electrode for selecting to transmit the excitation signal to the plurality of emission electrodes; and a pixel receiving circuit connected to the receiving electrode layer that receives a fingerprint signal.

Abstract: An identity recognition device, and an substrate and an identity recognition circuit are disclosed. In the substrate, a plurality of second recognition output lines are added to be arranged in pairs with first recognition output lines. A control signal loaded to the control signal line will be coupled to the first and second recognition output lines by the parasitic capacitance between the control signal line and the recognition output lines to cause similar signal interference to the first and second recognition output lines. During the identity recognition time period, the signal interference in the electric signal outputted by the first recognition output line can be removed by utilizing the similar noise signal received by the second recognition output line, in such a way to improve the signal-to-noise ratio and detection precision of the identity recognition signal.

Abstract: A transmission line substrate includes a stacked body that includes insulating base materials, first and second signal lines, and first and second ground conductors. The second signal line is provided on a layer different from the layer of the first signal line and extends in parallel with the first signal line. The first ground conductor is provided on the same layer as the layer of the second signal line and overlapped with the first signal line when viewed in the Z-axis direction. The second ground conductor is provided on the same layer as the layer of the first signal line and overlapped with the second signal line when viewed in the Z-axis direction. A first transmission line includes the first signal line, the first ground conductor, and an insulating base material, and a second transmission line includes the second signal line, the second ground conductor, and the insulating base material.

Abstract: The present disclosure relates to a temperature detection circuit, a display panel, and a display device. The temperature detection circuit includes: an odd number of inverters coupled end to end in series to form a loop; and a plurality of switches, two terminals of each of which correspondingly coupled to two terminals of an even number of inverters, which are coupled continuously, among the odd number of inverters.

Abstract: A photosensitive touch substrate, a fabrication method thereof, and a display apparatus. A method for fabricating a photosensitive touch substrate according to an embodiment of the present disclosure includes: forming a first electrode, a light emitting material layer, and a second electrode of a light emitting device on a substrate; forming a first electrode, a photosensitive functional layer, and a second electrode of a photosensitive device on the substrate. The first electrode of the light emitting device and one of the first electrode and the second electrode of the photosensitive device are formed by a one-time mask process.

Abstract: An ultrasonic sensing module, an ultrasonic sensing device and a control method thereof, and a display device. The ultrasonic sensing module includes a first electrode layer, a piezoelectric layer, a receiving electrode layer and an emission electrode layer. The first electrode layer is on a first side of the piezoelectric layer; the receiving electrode layer and the emission electrode layer insulated from the receiving electrode layer are on a second side of the piezoelectric layer; and the second side is opposite to the first side.

Abstract: A detection panel, a display apparatus, a method for driving the detection panel, and a method for manufacturing the detection panel are provided. The detection panel includes an upper electrode layer, a piezoelectric material layer and a conductive backing layer which are sequentially stacked. The piezoelectric material layer is configured to change an electric field between the upper electrode layer and the conductive backing layer under an ultrasonic wave, and generate an ultrasonic wave under an electric field. The conductive backing layer includes a plurality of noise elimination members, and each of the noise elimination members has a dimension in a direction parallel to the detection panel that gradually decreases in a direction distal to the piezoelectric material layer.

Abstract: A display panel includes a sub-pixel array and a plurality of photosensitive units. The sub-pixel array includes as first sub-pixel, a second sub-pixel and a third sub-pixel that are capable of emitting light of different colors. The plurality of photosensitive units are disposed under a light-emitting surface of the sub-pixel array. Each of the plurality of photosensitive units includes a photosensitive device, and the photosensitive device includes a photosensitive layer; and an orthographic projection of the photosensitive layer in the photosensitive device on a panel surface of the display panel has overlapping regions with orthographic projections of the first sub-pixel, the second sub-pixel and the third sub-pixel on the panel surface of the display panel.

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: An electric element includes a conducting path connecting electrodes and an insulating layer covering the conducting path. The electric element includes bonding portions in which the electrodes are disposed and a line portion connecting between the bonding portions. The line portion has a curved region sandwiched by portions having an outer shape curved on both sides of the insulating layer disposed to sandwich the conducting path. The line portion includes bonding patterns including metal surfaces exposed from the insulating layer. Each of contours of the bonding patterns includes at least two linear sides. At least two sides of the contour of a first bonding pattern disposed in the curved region are parallel or substantially parallel to at least two sides of a contour of at least one of the bonding patterns adjacent in an extending direction of the line portion.

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: The embodiments of the present disclosure provide an electroluminescent display panel, a driving method thereof, a driving device and a display device. In response to a detected temperature of the electroluminescent display panel is within an operating temperature range and is higher than a first standard temperature, a driving voltage of the electroluminescent display panel is adjusted to a first driving voltage lower than a standard driving voltage; and in response to the detected temperature of the electroluminescent display panel is within the operating temperature range and is lower than a second standard temperature, the driving voltage of the electroluminescent display panel is adjusted to a second driving voltage higher than the standard driving voltage. The first standard temperature is higher than or equal to the second standard temperature.

Abstract: A temperature sensor and a temperature detection method are provided. The temperature sensor includes an oscillation circuitry, a switch circuitry, a first charge-discharge circuitry, a sensing transistor, a second charge-discharge circuitry and a compensation control circuitry. The compensation control circuitry is coupled to a second end of the second charge-discharge circuitry, an adjustment voltage input end and a first control signal input end, and configured to: control the adjustment voltage input end to be decoupled with the second end of the second charge-discharge circuitry under a control of the first control signal input end in a charging period of a temperature detection stage; control the adjustment voltage input end to be coupled to the second end of the second charge-discharge circuitry under the control of the first control signal input end in a discharging period of the temperature detection stage.

Abstract: The embodiments of the present disclosure relate to a device for temperature detection, including a delay unit including an odd number of inverters coupled end to end, a switching transistor having a control electrode coupled to an output end of the delay unit, a first electrode coupled to an operating voltage node of the device, and a second electrode coupled to an input end of the delay unit, a first capacitor having a first end coupled to the input end of the delay unit, and a second end coupled to the first electrode of the switching transistor or a ground node of the device, and a temperature sensitive transistor having a control electrode coupled to a bias voltage end of the device, a first electrode coupled to the input end of the delay unit, and a second electrode coupled to the ground node of the device.