Feeding and discharging device and display module production line

The utility model relates to a feeding and discharging device and a display module production line, the display module production line comprises the feeding and discharging device, and the feeding and discharging device comprises a support, a lifting platform and a temporary storage platform. The support is provided with a feeding end and a discharging end, the lifting platform is movably connected to the support in a matched mode and can be controlled to move back and forth between the feeding end and the discharging end, the temporary storage platform is installed at the feeding end and comprises a tray assembly and a first fixing piece, and the tray assembly can be in an extending state or a contracting state in the horizontal direction; when the tray assembly is in a contraction state, the projection of the tray assembly on a horizontal plane at least partially coincides with the projection of the material on the horizontal plane, so that the material can be temporarily fixed and stacked on the tray assem