Display device

A display device comprising:

• a first substrate;
• a first buffer layer on the first substrate;
• an active layer of a transistor on the first buffer layer;
• a first insulating layer on the active layer of the transistor;
• a gate electrode of the transistor on the first insulating layer;
• a second insulating layer on the gate electrode of the transistor;
• a first planarization layer on the second insulating layer;
• a first light emitting electrode on the first planarization layer;
• a bank covering a part of the first light emitting electrode;
• a light emitting layer on an exposed part of the first light emitting electrode that is not covered by the bank;
• a second light emitting electrode on the light emitting layer and the bank;
• and
• a first inorganic layer on the second light emitting electrode,
• wherein the first buffer layer comprises a first sub-buffer layer on the first substrate and a second sub-buffer layer on the first sub-buffer layer, and
• wherein the first sub-buffer layer is in contact with the first substrate in a transmissive area.