Abstract: The application discloses a signal generation circuit (100), configured to generate a transmission signal to trigger a first transducer to generate a first transducer output signal; the signal generation circuit includes: a signal generation unit (106), configured to generate an output signal; and a transmitter (104), coupled to the signal generation unit, wherein the transmitter is configured to convert the output signal into the transmission signal; wherein the transmission signal includes a data signal and a compensation signal, the data signal includes at least one first pulse wave, the compensation signal includes at least one second pulse wave, the first pulse wave and the second pulse wave have opposite phases, and the first pulse wave has an other waveform parameter different from an other waveform parameter of the second pulse wave. The present application further provides a related chip, a flow meter and a method.

Abstract: An infrared touch display device is provided to include a display panel, an optical adhesive layer, a cover plate and an infrared touch panel that are overlapped in an order from bottom to top, and a microstructure layer. The optical adhesive layer is shaped as a ring and disposed in a peripheral area of an upper surface of the display panel. The area encompassed by the optical adhesive layer forms a vacuum room. The cover plate is disposed on the optical adhesive layer. The infrared touch panel is disposed on the cover plate. The microstructure layer is disposed at a side of the cover plate and has an anti-glare function.

Abstract: An electromagnetic induction type coordinate positioning apparatus includes a first induction coil, a second induction coil, a first amplification circuit, a second amplification circuit, and a control circuit. The first induction coil and the second induction coil respectively generate a first induction signal and a second induction signal when a pointer device comes close. The first amplification circuit and the second amplification circuit may be electrically connected to the first induction coil and the second induction coil, to receive the first induction signal and the second induction signal. The control circuit controls the first amplification circuit and the second amplification circuit to amplify the first induction signal and the second induction signal, so that a power level of the amplified first induction signal and a power level of the amplified second induction signal reach a first predefined level and a second predefined level.

Abstract: A BCE IGZO TFT device and a manufacturing method thereof include steps of providing a substrate, depositing a first metal layer on the substrate, wherein the first metal layer forms a gate and a first electrode layer by a patterning process, depositing a gate insulating layer on the substrate, the gate, and the first electrode layer, wherein the gate insulating layer is etched to remove a part of the gate insulating layer on a surface of the first electrode layer, depositing an active layer on the first electrode layer and the gate insulating layer, wherein the active layer and the first electrode layer are in direct contact, and depositing a second metal layer on the active layer, wherein the second metal layer forms a source, a drain, and a second electrode layer by a patterning process.

Abstract: A thin-film transistor and a manufacturing method thereof are provided, and the manufacturing method includes: forming a source electrode, a drain electrode and a planarization layer on a substrate, and patterning the planarization layer to form a first portion disposed between the source electrode and the drain electrode, a second portion disposed at a side of the source drain, and a third portion disposed at a side of the drain electrode. Upper surfaces of all the first portion, the second portion, and the third surface are flush with top portions of both the source electrode and the drain electrode.

Abstract: Provided are an absorbable biomedical composite material and a preparation method therefor. The absorbable biomedical composite material comprises: substrate granules containing a calcium-phosphorus compound; an intermediate layer which is coated on the surface of each of the substrate granules and has a first glass transition temperature, the first glass transition temperature being not higher than normal human body temperature; and a polymer matrix which is formed on the outer surface of the intermediate layer and has a second glass transition temperature, the second glass transition being higher than the first glass transition temperature. The absorbable biomedical composite material has increased mechanical strength and also improved toughness.

Abstract: A pixel driving circuit, a method of driving the pixel driving circuit, and a display panel. The pixel driving circuit includes a first transistor T1, a second transistor T2, a third transistor T3, a fourth transistor T4, a bootstrap capacitor Cbt, a storage capacitor Cst, and a light-emitting element D.

Abstract: A lens assembly includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens. The first lens is with negative refractive power. The second lens is with negative refractive power. The third and fourth lenses are with positive refractive power. The fifth lens is with negative refractive power. The sixth lens is with positive refractive power. The first lens, the second lens, the third lens, the fourth lens, the fifth lens, and the sixth lens are arranged in order from an object side to an image side along an optical axis. The lens assembly satisfies: 4.9?TTL/f?11.5; wherein TTL is an interval from an object side surface of the first lens to an image plane along the optical axis and f is an effective focal length of the lens assembly.

Abstract: A GOA circuit is provided according to implementations of the disclosure. The GOA circuit includes multiple cascaded GOA units. Each GOA unit includes a first pull-down control module, a second pull-down control module, and a pull-down holding module. A type of at least one thin film transistor (TFT) in at least one of the first pull-down control module or the second pull-down control module is different from that of a TFT in the pull-down holding module. A display panel and an electronic device are further provided according to implementations of the disclosure.

Abstract: A circuit board with high light reflectivity includes an inner wiring base board, a base board with a high light reflectivity, a first insulation layer, a first conductor layer, and a second insulation layer. A first opening in the inner wiring base board receives the base board. The first insulation layer is stacked on a surface of the inner wiring base board and defines a second opening corresponding in position to the first opening and exposing a portion of the base board. The first conductor layer is on a surface of the first insulation layer away from the inner wiring base board and includes connecting pads on the base board. The second insulation layer and the second conductor are stacked in that order on another surface of the inner wiring base board. A method for manufacturing the circuit board is also disclosed.

Abstract: An adjuster includes a power transfer circuit, a negative feedback circuit, a constant current source circuit and a control circuit. Two inputs of an error amplifier in the negative feedback circuit receive a reference voltage and a feedback voltage corresponding to an output signal of the adjuster respectively, and the error amplifier is configured to output a first voltage signal when the feedback voltage is less than the reference voltage, and output a second voltage signal when the feedback voltage is greater than the reference voltage, during the starting process of the adjuster. The control circuit is configured to control the negative feedback circuit to be turned off and the constant current source circuit to be turned on, and control the constant current source circuit to be turned off and the negative circuit to be turned on according to the second voltage signal.