Abstract: A display panel includes an active area and a peripheral area surrounding the active area, and the display panel further includes: a substrate and a plurality of light emitting devices arranged on the substrate in array, wherein the plurality of light emitting devices are located at least in the active area; a conducting layer comprising a cathode ring and cathodes of the plurality of light emitting devices, wherein the cathode ring is located in the peripheral area, and the cathode ring surrounds the active area; and a lens layer located at a side of the light emitting devices away from the substrate, wherein the lens layer extends from the active area to the peripheral area; wherein an orthographic projection of the lens layer on the substrate is located within an area delineated by an outer contour of an orthographic projection of the cathode ring on the substrate.

Abstract: A processing chip for a digital microphone and related input circuit and a digital microphone are described herein. In one aspect, the input circuit for a processing chip of a digital microphone includes: a PMOS transistor, a resistor, a current source, and a low-pass filter. The described processing chip possesses high anti high-frequency interference capabilities and the described input circuit possesses high high-frequency power supply rejection ratio.

Abstract: A power supply device, a processing chip for a digital microphone and related digital microphone are described herein. In one aspect, a power supply device includes: at least two cascaded low-dropout linear regulators. In another aspect, a processing chip for digital microphone includes a processing module and a power supply module, wherein the power supply modules includes at least two cascaded low dropout linear regulators. In another aspect, a digital microphone includes a microphone and a processing chip, wherein the processing chip includes a processing module and a power supply module, wherein the power module includes at least two cascaded low-dropout linear regulators. Embodiments described herein provide a power supply device with higher PSRR.

Abstract: A method and device for generating an adjustable signal includes a voltage generator configured to continuously adjust an output voltage and output the voltage, a ?? modulator configured to output a digital signal of pre-determined-cycle based on the output voltage and a reference voltage, a counter configured to count the number of a target level in the digital signal of a pre-determined number of cycles, and a digital signal generator configured to generate a target signal based on the number of the target level. The method and device may improve the accuracy of the generated signal while remaining the same feel of continuous adjustment.

Abstract: A method for improving the reverse breakdown voltage between P-well and N-well and related semiconductor silicon devices are described herein. In one aspect, a semiconductor silicon device comprises a substrate; a P-well in said substrate; an N-well in said substrate; wherein said N-well and said P-well are separated by said substrate. In another aspect, a method for increasing the reverse breakdown voltage from P-well to N-well comprises: providing a substrate; forming an N-well and a P-well in said substrate and separating said N-well and said P-well by said substrate.

Abstract: A processing chip for a digital microphone and related input circuit and a digital microphone are described herein. In one aspect, the input circuit for a processing chip of a digital microphone includes: a PMOS transistor, a resistor, a current source, and a low-pass filter. The described processing chip possesses high anti high-frequency interference capabilities and the described input circuit possesses high high-frequency power supply rejection ratio.

Abstract: An adjustable signal generating device and related method for generating the adjustable signal are described herein. The adjustable signal generating device includes: a voltage generator configured to continuously adjust an output voltage and output the voltage; a ?? modulator configured to output a digital signal of pre-determined-cycle based on the output voltage and a reference voltage; a counter configured to count the number of a target level in the digital signal of a pre-determined number of cycles; and a digital signal generator configured to generate a target signal based on the number of the target level. The described method and device improve the accuracy of the generated signal while remaining the same feel of continuous adjustment.

Abstract: A power supply device, a processing chip for a digital microphone and related digital microphone are described herein. In one aspect, a power supply device includes: at least two cascaded low-dropout linear regulators. In another aspect, a processing chip for digital microphone includes a processing module and a power supply module, wherein the power supply modules includes at least two cascaded low dropout linear regulators. In another aspect, a digital microphone includes a microphone and a processing chip, wherein the processing chip includes a processing module and a power supply module, wherein the power module includes at least two cascaded low-dropout linear regulators. Embodiments described herein provide a power supply device with higher PSRR.