Abstract: Provided is a display panel comprising including: a base substrate; a plurality of pixel units, each of which is provided with a light emitting structure, each light emitting structure includes a first electrode, a light emitting layer, and a second electrode sequentially stacked on the base substrate; a plurality of pixel circuits respectively disposed in the pixel units for driving the light emitting structure to emit light; a deforming layer disposed above the second electrodes of the light emitting structures; and one or more heating control circuits respectively disposed in different pixel units and each electrically connected to the second electrode of the light emitting structure in a corresponding pixel unit, the heating control circuit is configured to control the second electrode of the light emitting structure in the corresponding pixel unit to generate heat so that the hardness of the deforming layer above the second electrode changes.

Abstract: The present disclosure provides a fingerprint photocurrent detection unit, a fingerprint identifier, a driving method and a display device. The fingerprint photocurrent detection unit includes: a conversion circuit coupled to a fingerprint photocurrent reading line and configured to convert a fingerprint photocurrent acquired by the fingerprint photocurrent reading line into a square wave signal; and a detection circuit coupled to the conversion circuit and configured to detect the square wave signal and acquire information about a fingerprint photocurrent in accordance with a frequency of the square wave signal.

Abstract: The present disclosure relates to a touch driving circuit. The touch driving circuit may include a driving transistor. A control terminal of the driving transistor is configured to receive a data signal. A first terminal of the driving transistor is configured to receive a power signal. A second terminal of the driving transistor is connected to a first electrode of a light emitting element in the touch panel. The touch driving circuit may include a touch electrode configured to transmit a touch signal. The touch electrode forms parasitic capacitance with a second electrode of the light emitting element. The touch driving circuit may include a control unit configured to transmit a compensation signal to the second terminal of the driving transistor in response to a control signal. The power signal, the data signal, the touch signal, and the compensation signal are synchronously modulated signals during a touch stage.

Abstract: The present disclosure relates to a display substrate. The display substrate includes an active region and a non-active region, and a depth camera is disposed in the non-active region. The depth camera includes at least one receiving unit and a plurality of diffractive units. At least a part of the diffractive units includes an infrared light emitting device disposed on the substrate that emits infrared light. The part of the diffractive units includes a diffractive optical element disposed on the infrared light emitting device and used to transmit the infrared light emitted from the infrared light emitting device to an object. The receiving unit includes an infrared photosensitive device disposed on the substrate and used to receive the infrared light reflected by the object.

Abstract: The present disclosure discloses a touch control structure, a display panel and a touch control method. The touch control structure comprises a first conductive layer, a second conductive layer, a plurality of insulative supporting points, and a detection module. The second conductive layer comprises a plurality of electrodes which are independent from each other. The plurality of insulative supporting points is arranged on the first conductive layer and under the second conductive layer. The detection module is connected to the plurality of electrodes, and configured to detect an electrode in the second conductive layer contacted with the first conductive layer when the first conductive layer is pressed, and to determine a level of pressure pressed on the first conductive layer.

Abstract: The present application proposes a circuit and method for detecting ambient light, and a display panel. The circuit for detecting ambient light includes a light sensing sub-circuit configured to output a voltage pulse signal related to present intensity of the ambient light; and a detection sub-circuit electrically connected to the light sensing sub-circuit, and configured to acquire a frequency of the voltage pulse signal, and obtain the present intensity of the ambient light according to the frequency of the voltage pulse signal.

Abstract: A pixel circuit, an array substrate, a display panel, a display device, and a display driving method are provided. The pixel circuit includes a light emitting element, a pixel driving circuit, and an optical modulation circuit; in a touch stage, turning off the pixel driving circuit, driving the light emitting element to emit a modulated light of a first gray scale by the optical modulation circuit; and in a display stage, turning off the optical modulation circuit, and driving the light emitting element to emit light for display by the pixel driving circuit.

Abstract: Embodiments of the present disclosure provide a method and a device for acquiring depth information, as well as a gesture recognition apparatus. The method includes: projecting an infrared spectrum to a target object; collecting the infrared spectrum reflected by the target object at different positions and generating a first infrared image and a second infrared image respectively; and processing the first infrared image and the second infrared image on a basis of infrared spectrum response characteristics to acquire the depth information of the target object.

Abstract: A microfluidic system is disclosed, including: a first substrate, a second substrate and a droplet flow channel arranged therebetween; a droplet driving unit configured to drive a droplet to move; a first control circuit electrically connected to the droplet driving unit and configured to input a first driving signal to the droplet driving unit to enable the droplet to move along the predetermined movement trajectory; a droplet detection unit configured to detect the droplet and output a detection signal; a second control circuit electrically connected to the droplet detection unit and configured to receive the detection signal and acquire an actual movement trajectory of the droplet; and a signal adjustment unit configured to compare the actual movement trajectory with the predetermined movement trajectory, and if the actual movement trajectory is different from the predetermined movement trajectory, adjust in real time the first driving signal into a second driving signal.

Abstract: The present disclosure provides a temperature detection circuit. The temperature detection circuit includes: a first comparator, the first comparator having a first negative input terminal, a first positive input terminal and a first output terminal, the first negative input terminal being connected with an output terminal of a temperature sensor, the first positive input terminal being connected with a first reference voltage terminal; a monostable trigger, an input terminal of the monostable trigger being connected with the first output terminal of the first comparator; a low pass filter, an input terminal of the low pass filter being connected with an output terminal of the monostable trigger. The present disclosure further provides a temperature sensor device and a display device.

Abstract: The present application provides in some embodiments an array substrate, a display panel, a display device and a method for manufacturing the array substrate. The present application provides in some embodiments an array substrate, the array substrate comprising: an ultrasonic emission sensor, a substrate over the ultrasonic emission sensor, a thin film transistor (TFT) pixel circuit layer over the glass substrate, and an ultrasonic reception sensor over the TFT pixel circuit layer, the ultrasonic reception sensor being electrically connected to the TFT pixel circuit layer, wherein projections of the ultrasonic emission sensor and the ultrasonic reception sensor in a direction perpendicular to the substrate do not overlap with each other.

Abstract: A droplet control and detection device and an operating method thereof are provided. The droplet control and detection device includes: a light source; a first electrode; a second electrode; a droplet arranged on a light-exiting side of the light source, where the droplet is movable under the effect of an electric field formed between the first electrode and the second electrode; a photoelectric detection structure configured to detect light emitted by the light source and reflected by the droplet; and a processing circuit configured to obtain droplet information according to a detection result of the photoelectric detection structure and control an electrical signal applied on the first electrode and the second electrode according to the droplet information.

Abstract: A microfluidic system includes a liquid drop accommodation space, an array of photosensitivity detection circuits and an array of driving circuits between an upper substrate and a lower substrate. Each photosensitivity detection circuit includes a photosensitive transistor and a first gating transistor. The photosensitive transistor has a gate electrode coupled to a first scan signal line, a source electrode coupled to a first power supply voltage signal line, and a drain electrode coupled to a source electrode of the first gating transistor. The first gating transistor has a gate electrode coupled to a second scan signal line, and a drain electrode coupled to a read signal line. Each driving circuit includes a driving transistor and a driving electrode. The driving transistor has a gate electrode coupled to a third scan signal line, a source electrode coupled to a data signal line, and a drain electrode coupled to the driving electrode.

Abstract: The present disclosure relates to a display panel, a device and a method for controlling the same. The display panel includes: a substrate; a detecting light transmitter, a detecting light receiver, a first optical element and a second optical element which are disposed on the substrate. The first optical element is configured to diverge light emitted from the detecting light transmitter and the second optical element is configured to converge the reflected divergent light to the detecting light receiver.

Abstract: A fingerprint detection circuit is provided, which includes a photosensitive unit, a voltage following transistor, a first switching transistor and a second switching transistor. A gate electrode of the first switching transistor is connected to a first resetting control end, a first electrode thereof is connected to a node, and a second electrode thereof is connected to a second electrode of the voltage following transistor. A gate electrode of the second switching transistor is connected to a scanning signal end, a first electrode thereof is connected to the second electrode of the voltage following transistor, and a second electrode thereof is connected to a first reference voltage end. A gate electrode of the voltage following transistor is connected to the node. A first electrode of the photosensitive unit is connected to a third reference voltage end, and a second electrode thereof is connected to the node.

Abstract: The present disclosure provides a photoelectric sensor, an array substrate, a display panel and a display device. The photoelectric sensor is used for fingerprint recognition, and includes a first electrode layer, being lighttight. The photoelectric sensor further includes a first transparent electrode layer, disposed opposite to the first electrode layer and receiving incident light, and a light sensing layer, located between the first electrode layer and the first transparent electrode layer. The light sensing layer includes a plurality of nanocrystalline silicon particles with different particle sizes.

Abstract: This document describes a display substrate and a display apparatus. The display substrate comprises a base, a plurality of drive signal lines, a plurality of pH value detection signal lines, and a plurality of pH value sensing modules arranged on the base; each pH value sensing module is connected to a corresponding drive signal line and a corresponding pH value detection signal line; the drive signal line is configured to provide a drive signal to the pH value sensing modules connected thereto so as to control said pH value sensing modules to work or not; the pH value sensing module is configured to sense a pH value under a working state and output a corresponding electrical signal; the pH value detection signal line is configured to receive the electrical signal output by the pH value sensing module.

Abstract: Disclosed are a texture recognition display device and a driving method. The texture recognition display device includes a plurality of first control signal lines and second control signal lines disposed in pairs. During a texture recognition period, the second control signal lines are loaded with a second control signal, the frequency of which is the same as that of a first control signal of the first control signal lines and the phase of which differs from that of the first control signal by 180 degrees. Thus, the noise interference of the first control signal of the first control signal line with a recognition output line may be counteracted, the signal-to-noise ratio of an obtained texture recognition signal can be improved, thereby improving the extraction precision of the texture recognition signal and detection precision.

Abstract: A microfluidic system and method are disclosed. The microfluidic system includes: a first base substrate; a second base substrate opposite to the first base substrate; a first electrode on a side of the first base substrate close to the second base substrate; and a second electrode on a side of the second base substrate close to the first base substrate, the first base substrate and the second base substrate forms a cell, the cell is configured to receive a liquid to be detected, the first electrode and the second electrode are configured to drive the liquid to be detected during a first time period, and output a capacitance signal between the first electrode and the second electrode during a second time period.

Abstract: There are disclosed a system and method for touch and interaction in a three-dimension display, and after a three-dimension touch and interaction mode is enabled, a relative location relationship between a touch position of an operator and a display panel is determined according to transmitting time of ultrasonic signals transmitted by at least two ultrasonic transmitters and receiving time when ultrasonic signals reflected at the touch position of the operator are received by at least two ultrasonic sensors; and then the ultrasonic transmitters are controlled to transmit ultrasonic signals at preset power to the touch position of the operator according to a three-dimension object currently displayed on the display panel and the relative location relationship between the touch position of the operator and the display panel to make feedback for a touch operation at the touch position of the operator.