Boe Technology Group Co., Ltd.

Hefei Boe Optoelectronics Technology Co., Ltd.

Wenjian Wang

Jie Ling

Douqing Zhang

Feng Liu

Wei Cheng

Wei Lei

Jingwen An

Liangming Luo

This disclosure provides an apparatus, method and system for monitoring respiratory state. The apparatus includes an airflow sensor configured to monitor an exhalation flow of a subject, and a controller configured to determine whether the subject is experiencing an apnea according to the monitored exhalation flow and issue an alarm signal in response to determining that the subject is experiencing an apnea. Thereby, health problems caused by apnea are avoided.

Apparatus, method and system for monitoring respiratory state

A pixel circuit and driving method thereof, a display substrate and a display device are disclosed. The pixel circuit includes a light-emitting element, a drive element, a first switch element, a reset circuit and a compensating circuit. The drive element is connected to the light-emitting element and configured to drive the light-emitting element to emit light; the first switch circuit is configured to apply a data voltage to the drive element under control of a scan signal; the reset circuit is electrically connected to the compensating circuit, and configured to apply a reset signal to the compensating circuit under control of the scan signal; the compensating circuit is configured to compensate the drive element, so as to allow a signal output from the drive element to be relevant with the data voltage and the reset voltage and to be irrelative to threshold characteristic of the drive element.

Pixel circuit and driving method thereof, display substrate and display apparatus

A pixel driving circuit and a driving method therefor are provided. The pixel driving circuit includes a turn-on voltage acquiring device, a compensation device, a light-emitting controller, a data writing device, a driving transistor and a light emitting device. The turn-on voltage acquiring device acquires a turn-on voltage of the light emitting device and generates a compensation signal according to the turn-on voltage; the data writing device provides a data voltage to the gate of the driving transistor; the light-emitting controller provides a first operating voltage to a first electrode of the driving transistor; and the compensation device generates a control signal according to the compensation signal, the data voltage and the threshold voltage of the driving transistor and provides the control signal to the gate of the driving transistor; the driving transistor outputs a driving current to the light emitting device.

Pixel driving circuit and driving method thereof, and display apparatus

The present disclosure relates to a pixel compensation circuit and a method of driving the same, a display panel, and a display device. A pixel compensation circuit includes: a control sub-circuit, a write sub-circuit, a driving sub-circuit, and a light emitting sub-circuit, wherein the write sub-circuit is configured to, under the control of a scan signal terminal, transmit a data signal at a data signal terminal to the control sub-circuit and transmit a signal at a reference voltage signal terminal to the control sub-circuit; the control sub-circuit is configured to, under the control of a power control signal terminal, transmit a signal at a first power terminal to the driving sub-circuit, and under the combined action of a conduction control signal terminal and the power control signal terminal, control the driving sub-circuit to perform threshold compensation, and control the driving sub-circuit to generate a driving current to drive the light emitting sub-circuit to emit light.

Pixel compensation circuit and method of driving the same, display panel, and display device

The present disclosure discloses a pixel circuit, an array substrate, a display device and a pixel driving method, the pixel circuit including: a driving transistor, a light emitting device, a reset sub-circuit, a light emitting control sub-circuit, a compensation sub-circuit and a data writing sub-circuit, the compensation sub-circuit acquires a threshold voltage of the driving transistor and a turn-on voltage of the light emitting device in response to control of the second control signal and the third control signal, and writes a control voltage to a gate of the driving transistor in response to the first control signal, the control voltage is equal to a sum of the threshold voltage, the data voltage and the turn-on voltage, so that the driving current outputted by the driving transistor is independent of the threshold voltage of the driving transistor, and is positively correlated with the turn-on voltage of the light emitting device.

Growing community of inventors

Beijing, China

Wenjian Wang