Abstract: The present disclosure provides a display panel and a display apparatus, wherein the display panel includes a folding area and a non-folding area located at least one side of the folding area, on a plane perpendicular to the display panel, the display panel at least includes a display substrate, an adhesive layer disposed on the display substrate, and a cover plate layer disposed at a side of the adhesive layer away from the display substrate, the cover plate layer at least includes a glass layer, the glass layer is provided with at least one structural hole at a position corresponding to the folding area, and the thickness of the glass layer is 50 ?m to 500.

Abstract: Provided are a display substrate and a preparation method thereof, and a display device. The display substrate includes a display area and a non-display area at a periphery of the display area, and the display area includes a fanout area; the display substrate includes a data line in the display area and a fanout line in the fanout area; the fanout line (216) are electrically connected with the data line, and the fanout line and the data line are on different layers. The display device includes the display substrate. The preparation method includes: forming data line in the display area; forming fanout line on a layer that is different from the data line, where the fanout line are in the fanout area; and electrically connecting the fanout line with the data line.

Abstract: The present disclosure provides a display panel and a display apparatus, wherein the display panel includes a folding area and a non-folding area located at least one side of the folding area, on a plane perpendicular to the display panel, the display panel at least includes a display substrate, an adhesive layer disposed on the display substrate, and a cover plate layer disposed at a side of the adhesive layer away from the display substrate, the cover plate layer at least includes a glass layer, the glass layer is provided with at least one structural hole at a position corresponding to the folding area, and the thickness of the glass layer is 50 ?m to 500.

Abstract: Provided is a display device. The display device includes: a box cover, a box base, and a mirror display panel, wherein the box cover is connected to the box base, and the mirror display panel is connected to the box cover; the box cover is configured to have an open state and a closed state; wherein in a case that the box cover is in the open state, the box cover is at least partially separated from the box base, such that the mirror display panel is disposed outside the box base; and in a case that the box cover is in the closed state, the mirror display panel is disposed inside the box base.

Abstract: A fire monitoring system and a container-type data center system. The fire monitoring system includes a filtering apparatus, a detection apparatus, and a control apparatus. The filtering apparatus includes a first stage filter and a second stage filter.

Abstract: A display panel comprises: a display substrate, having a display area, a non-display area, and a bendable area located therebetween; a back film, located on a side away from a light exit surface of the display substrate, where the back film comprises a first support area and a second support area, a projection of the first support area on the display substrate at least overlaps with the display area, and a projection of the second support area on the display substrate is located within the non-display area; and a heat dissipation film, located on a side of the back film away from the display substrate, where an orthographic projection of the heat dissipation film on the back film is located within the first support area, a surface of the heat dissipation film away from the display substrate is provided with a groove, and the groove is filled with an adhesive.

Abstract: A fire monitoring system and a container-type data center system. The fire monitoring system includes a filtering apparatus, a detection apparatus, and a control apparatus. The filtering apparatus includes a first stage filter and a second stage filter.

Abstract: Techniques for group control using service data objects (SDO) are disclosed. A device controller is configured to perform operations including: receiving, from device controllers that are configured to control devices so that the devices operate based on a shared set point, SDO messages using an SDO protocol; determining that the device controller is a master device controller for the device controllers, based at least on the SDO messages; and sending a setpoint update message including a modified value of the shared set point, using the SDO protocol, to slave device controllers in the device controllers, wherein a slave device controller in the slave device controllers is configured to adjust operation of at least one slave device in the devices, based at least on the setpoint update message.

Abstract: Techniques for group control using service data objects (SDO) are disclosed. A device controller is configured to perform operations including: receiving, from device controllers that are configured to control devices so that the devices operate based on a shared set point, SDO messages using an SDO protocol; determining that the device controller is a master device controller for the device controllers, based at least on the SDO messages; and sending a setpoint update message including a modified value of the shared set point, using the SDO protocol, to slave device controllers in the device controllers, wherein a slave device controller in the slave device controllers is configured to adjust operation of at least one slave device in the devices, based at least on the setpoint update message.