Abstract: A sample collecting device is provided. The sample collecting device includes a frame, a collect part and a control part. The collect part is disposed in the frame and is provided with a collecting cavity having a collecting port, and the collect part is used to make a sample flow into the collecting cavity from the collecting port. The control part is disposed in the frame, used to make a collecting rod put into a reagent bottle be pulled out and inserted into the collecting cavity to thereby collect the sample, and used to make the collecting rod with the sample be pulled out from the collecting cavity and put back into the reagent bottle. The collecting of sample without manual intervention is realized, effectiveness and consistency of the collected samples are ensured, and the labor cost is reduced.

Abstract: A sample collecting device is provided. The sample collecting device includes a frame, a collect part and a control part. The collect part is disposed in the frame and is provided with a collecting cavity having a collecting port, and the collect part is used to make a sample flow into the collecting cavity from the collecting port. The control part is disposed in the frame, used to make a collecting rod put into a reagent bottle be pulled out and inserted into the collecting cavity to thereby collect the sample, and used to make the collecting rod with the sample be pulled out from the collecting cavity and put back into the reagent bottle. The collecting of sample without manual intervention is realized, effectiveness and consistency of the collected samples are ensured, and the labor cost is reduced.

Abstract: The present disclosure provides a sensor pixel, an ultrasonic sensor, an OLED display panel and an OLED display device, in which the sensor pixel includes a base substrate, a piezoelectric transducer and a sensor pixel circuit arranged on the base substrate; the energy sensor is connected to a first signal input terminal and the first node; the sensor pixel circuit includes a signal node control subcircuit for controlling the first node according to a signal of the reset signal terminal and a signal of the second signal input terminal, a drive subcircuit for providing a detection signal to the second node under the control of a signal of the first node, and a read subcircuit for providing a signal of the second node to the signal read line under the control of the read signal terminal.

Abstract: The present disclosure provides a sensor pixel, an ultrasonic sensor, an OLED display panel and an OLED display device, in which the sensor pixel includes a base substrate, a piezoelectric transducer and a sensor pixel circuit arranged on the base substrate; the energy sensor is connected to a first signal input terminal and the first node; the sensor pixel circuit includes a signal node control subcircuit for controlling the first node according to a signal of the reset signal terminal and a signal of the second signal input terminal, a drive subcircuit for providing a detection signal to the second node under the control of a signal of the first node, and a read subcircuit for providing a signal of the second node to the signal read line under the control of the read signal terminal.