OLED display having a sealant disposed on sealing substructures comprising through-portions therebetween

An organic light-emitting diode (OLED) display, comprising:

• a lower substrate comprising a display area and a peripheral area surrounding the display area;
• an upper substrate facing the lower substrate;
• a display unit disposed on the display area;
• a sealant disposed on the peripheral area and sealing the lower and upper substrates;
• a first metal layer interposed between the lower substrate and the sealant, wherein the first metal layer comprises a plurality of first through-portions extending in a first direction and arranged in a second direction crossing the first direction;
• a second metal layer disposed on the first metal layer and comprising a plurality of second through-portions respectively corresponding to the first through-portions, wherein each of the second through-portions has a size equal to or greater than the size of the respective first through-portion, wherein the lower substrate has an opening portion connected to the sealant through the first and second through-portions;
• a plurality of connectors configured to electrically connect the first and second metal layers, and
• a first insulating film interposed between the first and second metal layers, wherein the first insulating film at least partially covers the opening portion and has a plurality of first fine holes formed in the opening portion.