Abstract: A photoelectric detector, a PPG sensor, and an electronic device are provided. The photoelectric detector includes a photo diode, configured to sense light on a first band, a second band, and a third band; at least one first optical filter part, located on the photo diode, and configured to transmit light on the first band and the second band, and block light on the third band; and at least one second optical filter part, located on the photo diode, and configured to transmit the light on the third band and block the light on the first band and the second band.

Abstract: The present disclosure relates to the field of air conditioners, and in particular to an air conditioning outdoor unit and an air conditioner therewith. The present disclosure provides an air conditioning outdoor unit, including: a case, where an air outlet is provided at a top of the case, and a compressor assembly is provided at a bottom of the case; a wind turbine, where the wind turbine is arranged at the top of the case and is located at a position of the air outlet; and an electronic control box, where the electronic control box is arranged at the case, and a distance between a bottom of the electronic control box and the bottom of the case is Z2, Z2?0.8×h, h being a height of the compressor assembly. In the air conditioning outdoor unit of the present disclosure.

Abstract: Embodiments of this application provide a terminal based on photo plethysmo graph PPG. The terminal includes an LED, an AFE chip, a processor, a delay circuit, and a plurality of PDs, the first PD is configured to receive a second optical signal reflected by the skin of the user, and convert the second optical signal into a first electrical signal; the second PD is configured to receive the second optical signal reflected by the skin of the user, and convert the second optical signal into a second electrical signal; the delay circuit is configured to perform delay processing on the first electrical signal; the AFE chip is configured to determine a target signal based on the second electrical signal and the first electrical signal subjected to the delay processing; and the processor is configured to process the target signal to obtain a health status of the user.

Abstract: Embodiments of this application provide a terminal based on photo plethysmo graph PPG. The terminal includes an LED, an AFE chip, a processor, a delay circuit, and a plurality of PDs, the first PD is configured to receive a second optical signal reflected by the skin of the user, and convert the second optical signal into a first electrical signal; the second PD is configured to receive the second optical signal reflected by the skin of the user, and convert the second optical signal into a second electrical signal; the delay circuit is configured to perform delay processing on the first electrical signal; the AFE chip is configured to determine a target signal based on the second electrical signal and the first electrical signal subjected to the delay processing; and the processor is configured to process the target signal to obtain a health status of the user.

Abstract: A high-quality (RS)-?-ethyl-2-oxo-1-pyrrolidine acetic acid acquired by racemization recovery is provided. A method provided significantly increases the quality and appearance of the product (RS)-?-ethyl-2-oxo-1-pyrrolidine acetic acid recovered using racemization and does not affect the product yield.

Abstract: A photoelectric detector, a PPG sensor, and an electronic device are provided. The photoelectric detector includes a photo diode, configured to sense light on a first band, a second band, and a third band; at least one first optical filter part, located on the photo diode, and configured to transmit light on the first band and the second band, and block light on the third band; and at least one second optical filter part, located on the photo diode, and configured to transmit the light on the third band and block the light on the first band and the second band.

Abstract: The present disclosure relates to the field of air conditioners, and in particular to an air conditioning outdoor unit and an air conditioner therewith. The present disclosure provides an air conditioning outdoor unit, including: a case, where an air outlet is provided at a top of the case, and a compressor assembly is provided at a bottom of the case; a wind turbine, where the wind turbine is arranged at the top of the case and is located at a position of the air outlet; and an electronic control box, where the electronic control box is arranged at the case, and a distance between a bottom of the electronic control box and the bottom of the case is Z2, Z2?0.8×h, h being a height of the compressor assembly. In the air conditioning outdoor unit of the present disclosure.

Abstract: Provided is a method of calibrating a stereoscopic display device. The device includes a motor and a display panel, and the display panel is driven by the motor to rotate to realize a stereoscopic display. The method includes acquiring a control strategy of the motor and display parameters of the display panel matching the control strategy, wherein the control strategy indicates that each time the motor runs for a preset period of time, the motor is restarted; controlling the motor to run according to the control strategy, to calibrate the motor by restarting; and driving the display panel to display according to the display parameters in the rotation process of the motor.

Abstract: Provided is a display device. The display device includes a controller, a display module, and a temperature sensor disposed in the display module; wherein the controller is connected to the display module and the temperature sensor; the temperature sensor is configured to detect a temperature of the display module; and the controller is configured to: adjust a gamma parameter of the display module to a target gamma parameter corresponding to the temperature of the display module; determine a target drive voltage required by the display module with the target gamma parameter; and drive, based on the target drive voltage, the display module to display an image.

Abstract: A display apparatus includes a display panel and a gate driving circuit. A display area of the display panel includes at least two sub-display areas, and each sub-display area of the at least two sub-display areas includes a plurality of sub-pixels. The gate driving circuit includes at least two gate driving sub-circuits in one-to-one correspondence with the at least two sub-display areas, and each gate driving sub-circuit of the at least two gate driving sub-circuits is electrically connected to a plurality of sub-pixels included in a corresponding sub-display area. Each gate driving sub-circuit is configured to receive a group of first control signals, generate a group of gate driving signals according to the group of first control signals, and output the group of gate driving signals to the plurality of sub-pixels included in the corresponding sub-display area.

Abstract: Provided is a wearable display device. The wearable display device includes: a motor, a processor, and a motor drive assembly; wherein the processor is connected to the motor drive assembly, and is configured to receive a motor control instruction and send the motor control instruction to the motor drive assembly; the motor drive assembly is connected to the motor, and is configured to: control the motor to rotate based on the rotation mode in the case that the motor control instruction carries the rotation mode, and adjust a rotation speed of the motor based on the speed control parameter in the case that the motor control instruction carries the speed control parameter; and the motor, upon rotating, is configured to adjust a position of an imaging face of the wearable display device.

Abstract: Provided is a method of calibrating a stereoscopic display device. The device includes a motor and a display panel, and the display panel is driven by the motor to rotate to realize a stereoscopic display. The method includes acquiring a control strategy of the motor and display parameters of the display panel matching the control strategy, wherein the control strategy indicates that each time the motor runs for a preset period of time, the motor is restarted; controlling the motor to run according to the control strategy, to calibrate the motor by restarting; and driving the display panel to display according to the display parameters in the rotation process of the motor.

Abstract: Provided is a method of calibrating a stereoscopic display device. The device includes a motor and a display panel, and the display panel is driven by the motor to rotate to realize a stereoscopic display. The method includes acquiring a control strategy of the motor and display parameters of the display panel matching the control strategy, wherein the control strategy indicates that each time the motor runs for a preset period of time, the motor is restarted; controlling the motor to run according to the control strategy, to calibrate the motor by restarting; and driving the display panel to display according to the display parameters in the rotation process of the motor.

Abstract: A display device (10) and an image display method therefor, an image display system, and a storage medium, which relate to the technical field of display. A controller (101) of the display device (10) can adjust a gamma parameter when the temperature of a display module (102) is high, so as to reduce a drive voltage required by the display module (102) while keeping a brightness change of the display module (102) small. In this manner, the temperature of the display module (102) can be reduced, the display module (102) can be prevented from being damaged, and the display device (10) has a high reliability.

Abstract: The present application relates to the technical field of virtual reality. Disclosed are a wearable display device and a method for adjusting an imaging surface thereof. The motor drive assembly in the wearable display device can control the rotation of motors according to a rotation mode carried in a motor control instruction received by a processor, or adjust the rotation speed of the motors according to a speed control parameter carried in the motor control instruction received by the processor. Moreover, the rotation of the motors can adjust the position of an imaging surface, and a change in the position of the imaging face will change the distance between the imaging surface and a user wearing the wearable display device. Therefore, in addition to being used for watching movies or playing games, the wearable display device can also function as an eye protector, and the wearable display device has abundant functions.

Abstract: Smart glasses are provided in the present disclosure, including a housing, a fixing bracket, a left lens barrel, a right lens barrel, an object distance adjustment mechanism including a left-eye object distance adjustment gear, a right-eye object distance adjustment gear, an object distance adjustment driving gear engaged with the left-eye object distance adjustment gear and the right-eye object distance adjustment gear and a driving motor driving the object distance adjustment driving gear to rotate and being capable of moving back and forth on the fixing bracket along a second direction; a pupil distance adjustment mechanism connected to at least one lens barrel, and configured to drive the lens barrel to move in the first direction when an external force is applied, and a linkage member arranged between the at least one lens barrel and the driving motor.

Abstract: The present disclosure provides a device for stereoscopic displaying and a method for controlling the same. The device for stereoscopic displaying comprises: a rotary shaft and at least one display assembly. The display assembly is fixed to the rotary shaft, the display assembly comprises at least three display surfaces, and at least one of the display surfaces is arranged opposite to the rotary shaft in a radial direction of the rotary shaft.

Abstract: The present disclosure provides a method for sending driving data of a backlight source, a control circuit and a display device. The method includes: acquiring driving data of a plurality of rows of light-emitting elements included in the backlight source; and sending the driving data of the plurality of rows of light-emitting elements to a driving circuit of the backlight source at many times, wherein at least one data packet is sent each time, each data packet includes driving data for driving one row of light-emitting elements and a quantity of data packets sent each time is less than a quantity of rows of light-emitting elements included in the backlight source.