An electroluminescent device, a display panel and a display apparatus are disclosed. The electroluminescent device includes: a substrate; an anode on the substrate; a luminescent layer on a side of the anode facing away from the substrate; and a cathode on a side of the luminescent layer facing away from the substrate. The cathode includes a transflective layer on the side of the luminescent layer facing away from the substrate; and a light-emission enhancement layer on a side of the transflective layer facing away from the substrate. The anode is configured to reflect light incident thereon, a material of the transflective layer includes metal, and the transflective layer is configured to transmit a first portion of light incident thereon and to reflect a second portion of the light incident thereon.