Display device and method of manufacturing the same

A display device comprising:

• a first light emitting element comprising a lower electrode, an upper electrode, and a light emitting layer disposed between the lower electrode and the upper electrode;
• a second light emitting element comprising a lower electrode, an upper electrode, and a light emitting layer disposed between the lower electrode and the upper electrode;
• transistors electrically connected to the lower electrode of the first light emitting element and the lower electrode of the second light emitting element;
• a first pixel definition pattern including a first pixel opening through which at least a portion of the lower electrode of the first light emitting element is exposed;
• a second pixel definition pattern including a second pixel opening through which at least a portion of the lower electrode of the second light emitting element is exposed;
• a first sacrificial pattern overlapped by the first pixel definition pattern in a plan view;
• and
• a second sacrificial pattern overlapped by the second pixel definition pattern and spaced apart from the first sacrificial pattern in a plan view,
• wherein the transistors do not overlap an area between the first pixel definition pattern and the second pixel definition pattern, in a plan view.

A method of manufacturing a display device, comprising:

• forming a preliminary sacrificial layer on an insulating layer on which a first lower electrode and a second lower electrode spaced apart from the first lower electrode are disposed;
• forming a light blocking layer comprising a light blocking material on the preliminary sacrificial layer;
• patterning the light blocking layer such that areas of the preliminary sacrificial layer are exposed, the areas of the preliminary sacrificial layer overlapping the first and second lower electrodes in a plan view;
• etching the preliminary sacrificial layer in the areas exposed through the patterned light blocking layer using the patterned light blocking layer as a mask;
• and
• heat-treating the patterned light blocking layer.