In an exemplary embodiment, the bottom cover bracket is provided with a fixation arm, and the fixation arm is pressed against the battery.

In an exemplary embodiment, the circuit board assembly includes a bottom plate and a core board disposed on the bottom plate and electrically connected to the bottom plate;

the two flexible screens and the charging motherboard are all electrically connected to the bottom plate.

In an exemplary embodiment, when the charging base is connected to an eternal power source to charge the display, the battery is charged through the charging motherboard to supply power to the bottom plate through the charging motherboard after the battery is fully charged;

when the charging base is separated from the display, the battery supplies power to the bottom plate, and the bottom plate supplies power to the two flexible screens and the core board.

In an exemplary embodiment, the charging base includes a base housing and a charging common board disposed in the base housing, wherein the charging common board is provided with the power port and the charging connector, and the charging connector extends out of the base housing and is configured to be inserted and matched with the charging port.

In an exemplary embodiment, the base housing includes a bottom housing and an upper cover, an inner side of the upper cover is provided with a first magnet, and an inner side of the bottom cover is provided with a second magnet having a position corresponding to that of the first magnet and attracting each other.

In an exemplary embodiment, an outer side of the upper cover is provided with a flexible grommet, and the flexible grommet is disposed around the charging connector.