Abstract: Disclosed are a display substrate. The display substrate includes a drive backplane; a first electrode layer disposed on a side of the drive backplane; a pixel definition layer disposed on a side, distal to the drive backplane, of the first electrode layer; an organic light-emitting layer disposed on a side, distal to the drive backplane, of the pixel definition layer, wherein the organic light-emitting layer comprises: a plurality of organic material layers stacked in a direction perpendicular to and away from the drive backplane, and a portion of the organic material layer disposed inside the partition groove is separated from a portion of the organic material layer disposed outside the partition groove; and a second electrode layer disposed on a side, distal to the drive backplane, of the organic light-emitting layer.

Abstract: A card edge connector (1) includes an insulating housing (2), two rows of contacts (3) and a cover (4). The insulating housing (1) includes a front mating surface (27) and a rear face (25). A retaining section (21) extends rearwards from the rear surface and defines a dove-tailed, retaining cavity (22) on a top surface (220) thereof. A retaining, through hole (23) is defined in the insulating housing and communicating with the retaining cavity (220). The cover includes a locating block (41) retained in the dove-tailed, retaining cavity and a locking portion (42) entering the retaining, through hole. Thus, the cover is mounted to the insulating housing (2) firmly to protect soldering tails (33) and medial portions (32) of the contacts outside the insulating housing.