Display device including a partition having a lower portion with aluminum layers

A display device comprising:

• a substrate;
• a lower electrode provided above the substrate;
• an insulating layer formed of an inorganic material and comprising an aperture overlapping the lower electrode;
• a partition comprising a lower portion provided on the insulating layer and an upper portion protruding from a side surface of the lower portion;
• an organic layer provided on the lower electrode, spaced apart from the lower portion of the partition, and including a light emitting layer;
• and
• an upper electrode provided on the organic layer, wherein
• the lower portion of the partition includes a first aluminum layer, and a second aluminum layer provided on the first aluminum layer,
• the upper electrode is in contact with a side surface of the first aluminum layer,
• each of the first aluminum layer and the second aluminum layer is formed of pure aluminum, and
• a total thickness of the first aluminum layer and the second aluminum layer is greater than 500 nm.