Abstract: The present disclosure provides a pixel circuit with pulse width compensation, and the pixel circuit includes a pulse width modulation circuit and a pulse amplitude modulation circuit, and the pulse amplitude modulation circuit is electrically connected to the pulse width modulation circuit. The pulse width modulation circuit includes a P-type pulse width compensation transistor and a first P-type control transistor, and the first P-type control transistor is electrically connected to the P-type pulse width compensation transistor. The pulse amplitude modulation circuit includes a second P-type control transistor, a first capacitor, a P-type driving transistor and a light-emitting element. The second P-type control transistor is electrically connected to the first P-type control transistor. The first capacitor is electrically connected to the second P-type control transistor.

Abstract: The present disclosure provides a scan driving circuit, which includes a pull-up output charging circuit, a pull-down discharge circuit, a pre-charge circuit, an anti-noise start-up circuit and an anti-noise pull-down discharge circuit. The pull-up output charging circuit is electrically connected to an output terminal, and the pull-down discharge circuit is electrically connected to the output terminal. The pre-charge circuit is electrically connected to the pull-up output charging circuit and the pull-down discharge circuit through a driving node. The anti-noise start-up circuit is electrically connected to the pre-charge circuit. The anti-noise pull-down discharge circuit is electrically connected to the anti-noise start-up circuit, and the anti-noise pull-down discharge circuit is electrically connected to the driving node.

Abstract: The present disclosure provides a scan driving circuit, which includes a pull-up output charging circuit, a pull-down discharge circuit, a pre-charge circuit, an anti-noise start-up circuit and an anti-noise pull-down discharge circuit. The pull-up output charging circuit is electrically connected to an output terminal, and the pull-down discharge circuit is electrically connected to the output terminal. The pre-charge circuit is electrically connected to the pull-up output charging circuit and the pull-down discharge circuit through a driving node. The anti-noise start-up circuit is electrically connected to the pre-charge circuit. The anti-noise pull-down discharge circuit is electrically connected to the anti-noise start-up circuit, and the anti-noise pull-down discharge circuit is electrically connected to the driving node.

Abstract: An anti-siphon structure for a tankless pressure flushing toilet, that comprises: a main body, on which is disposed a water passage channel, the main body is connected to a water output end of a water supply pipe; a movable valve core set, disposed in the main body, to open or close water flowing through the water passage channel; a first check valve, connected to a water output end of the main body, a water output end of the first check valve is connected to a pressure water tank of a toilet seat; and a vacuum breaker, disposed at a side of a front end of the movable valve core set, and is connected to the water passage channel. A second check valve is disposed at the water input end of the main body.

Abstract: A low-noise pressure flushing system includes a flush valve, a first flush tube, and the check valve. The first flush tube is connected to a water output end of the flush valve. The second flush tube is connected to the water output end of the flush valve. The check valve is disposed at a water output end of the first flush tube. Also disclosed is a toilet device, that includes and utilizes the low-noise pressure flushing system mentioned above, to reduce the noise significantly during toilet flushing.

Abstract: A nonrefillable valve is provided that allows for an initial filling of a container, but prevents subsequent refilling of the container. The valve operating assembly includes a valve stem and a valve core which is slidably received in the distal end of the valve stem. In a first position, the valve core resides above a rim or protrusion within the chamber. After filling of the container, a second position is defined when the valve stem is operated to force the valve core beyond the protrusion and in seating engagement with a valve seat, thus sealing the container. The valve is then selectively operated in a third or open position to discharge the container as desired. Subsequent refilling of the container is prevented by the force of fluid reentering the valve which forces the valve core to its seated engagement with the valve seat.

Abstract: A nonrefillable valve is provided that allows for an initial filling of a container, but prevents subsequent refilling of the container. The valve operating assembly includes a valve stem and a valve core which is slidably received in the distal end of the valve stem. In a first position, the valve core resides above a rim or protrusion within the chamber. After filling of the container, a second position is defined when the valve stem is operated to force the valve core beyond the protrusion and in seating engagement with a valve seat, thus sealing the container. The valve is then selectively operated in a third or open position to discharge the container as desired. Subsequent refilling of the container is prevented by the force of fluid reentering the valve which forces the valve core to its seated engagement with the valve seat.

Abstract: A nonrefillable valve is especially adapted for an initial charge or fill of a pressurized container, and selective discharge of the container, but prevents subsequent refill of the container. The valve is characterized by a valve body which receives a valve operating assembly. The valve operating assembly includes a valve stem which is raised or lowered within the chamber of the valve, and a valve core which is slidably received in the distal end of the valve stem. In a first or pre-position, the valve core resides above a rim or protrusion within the chamber. After filling of the container, the valve stem is operated to force the valve core beyond the protrusion, and in seating engagement with a valve seat thus sealing the container. A second or closed position of the valve is defined when the valve stem forces the valve core against the valve seat. The valve is then selectively operated in a third or open position to discharge the container as desired.