Abstract: A pixel circuit, a pixel driving method, a display substrate, and a display device are provided. The pixel circuit includes a driving circuit, a first reset circuit, a first node control circuit, a first light-emitting control circuit and a light-emitting element. The first reset circuit writes a first initial voltage to a first electrode of the light-emitting element under control of a potential of the first node. The first node control circuit controls the potential of the first node according to a data voltage and a threshold voltage of the driving transistor included in the driving circuit. The first light-emitting control circuit controls connection between a second end of the driving circuit and the first electrode of the light-emitting element under control of a light-emitting control signal. The driving circuit is configured to generate a driving current.

Abstract: The present application provides a display substrate, a method for manufacturing the same, and a display device, which belongs to the technical field of displays. The display substrate includes: a base substrate and a plurality of sub-pixels on the base substrate, the sub-pixels include a sub-pixel driving circuit and a light-emitting element. The sub-pixel driving circuit includes: a first transistor and a second transistor; an active layer structure of the first transistor includes a first active layer and a second active layer connected to the first active layer. The second active layer is located at a side of the first active layer away from the base substrate, the first active layer includes a first active portion and a second active portion which are independent from each other, and the first active portion and the second active portion are connected to two ends of the second active layer, respectively.

Abstract: The present application provides a display substrate, a method for manufacturing the same, and a display device, which belongs to the technical field of displays. The display substrate includes: a base substrate and a plurality of sub-pixels on the base substrate, the sub-pixels include a sub-pixel driving circuit and a light-emitting element. The sub-pixel driving circuit includes: a first transistor and a second transistor; an active layer structure of the first transistor includes a first active layer and a second active layer connected to the first active layer. The second active layer is located at a side of the first active layer away from the base substrate, the first active layer includes a first active portion and a second active portion which are independent from each other, and the first active portion and the second active portion are connected to two ends of the second active layer, respectively.

Abstract: The disclosure provides a remote control device, a piezoelectric laser pointer, and a remote control system. The remote control device includes a housing, and further includes: a power generator, mounted inside the housing and including a press mechanism and a power generating mechanism, where after being pressed by the press mechanism, the power generating mechanism is deformed under stress and generates electricity; a circuit controller, mounted inside the housing and electrically connected to the power generator; and a signal transceiver, mounted inside the housing, electrically connected to the circuit controller, and configured to transmit and receive signals. In the disclosure, the power generating mechanism generates power after being pressed by the press mechanism, and the power is transferred to the circuit controller, so that the signal transceiver is powered on. Dry batteries are no longer used, thus avoiding environmental pollution caused by used dry batteries.

Abstract: The disclosure provides a remote control device, a piezoelectric laser pointer, and a remote control system. The remote control device includes a housing, and further includes: a power generator, mounted inside the housing and including a press mechanism and a power generating mechanism, where after being pressed by the press mechanism, the power generating mechanism is deformed under stress and generates electricity; a circuit controller, mounted inside the housing and electrically connected to the power generator; and a signal transceiver, mounted inside the housing, electrically connected to the circuit controller, and configured to transmit and receive signals. In the disclosure, the power generating mechanism generates power after being pressed by the press mechanism, and the power is transferred to the circuit controller, so that the signal transceiver is powered on. Dry batteries are no longer used, thus avoiding environmental pollution caused by used dry batteries.

Abstract: The present invention relates to the field of communications on rail trains. A PicoBlaze-based MVB controller includes a pMVB controller, a traffic memory, an ARM adapter, and a bus arbiter. The pMVB controller, the traffic memory, ARM adapter, and the bus arbiter are connected to an external bus BUS1. The pMVB controller is connected to the traffic memory. The ARM adapter is connected to an external ARM processor and the bus arbiter. The traffic memory can store network communication data and input control information, and send them to the pMVB controller. The pMVB controller responds to the control information, and sends the communication data, and after it is encoded, to the MVB bus via the external bus BUS1. The pMVB controller also decodes data received from the pMVB bus and triggers an interrupt. The bus arbiter is responsible for bus arbitration in accordance with the instructions from the pMVB controller.

Abstract: The present invention relates to the field of communications on rail trains. A PicoBlaze-based MVB controller includes a pMVB controller, a traffic memory, an ARM adapter, and a bus arbiter. The pMVB controller, the traffic memory, ARM adapter, and the bus arbiter are connected to an external bus BUS1. The pMVB controller is connected to the traffic memory. The ARM adapter is connected to an external ARM processor and the bus arbiter. The traffic memory can store network communication data and input control information, and send them to the pMVB controller. The pMVB controller responds to the control information, and sends the communication data, and after it is encoded, to the MVB bus via the external bus BUS1. The pMVB controller also decodes data received from the pMVB bus and triggers an interrupt. The bus arbiter is responsible for bus arbitration in accordance with the instructions from the pMVB controller.

Abstract: The present invention discloses a LPC2468-based MVB-WTB gateway and associated operating methods in the field of train communications. The disclosed network gateway includes a MVB network card and a WTB network card. The WTB network card includes WTB-ARM and a WTB-FPGA module. The MVB network card includes MVB-ARM and MVB-FPGA module. The WTB-ARM module uses a LPC2468 processor to analyze data in the network layer and the data link layer based on gateway protocol. The WTB-FPGA module allows WTB to exchange data with other networks gateways, as well as between the WTB and MVB. The MVB-ARM module is responsible for executing protocols on the network cards. Via data communications on MVB, the MVB-FPGA module collects the process and message data of the MVB equipment, and exchange communication data between WTB within a network gateway. The present invention can increase speed and enhance reliability for communications between gateways.