Display device nano particle barrier layer

A display device, comprising:

• a substrate in which a display area and a non-display area adjacent to the display area are disposed;
• a thin film transistor disposed on a portion of the substrate that corresponds to the display area;
• a gate driver disposed on a portion of the substrate that corresponds to the non-display area;
• a protection layer disposed to cover the thin film transistor and the gate driver;
• a planarization layer disposed on the protection layer and including a plurality of openings that expose at least a part of the protection layer in the non-display area;
• an organic light emitting diode disposed on the planarization layer so as to be electrically connected to the thin film transistor in the display area;
• and
• a nano particle layer disposed on the protection layer overlapping the plurality of openings,
• wherein the nano particle layer includes nanoparticles surface-modified with a hydrophobic functional group,
• wherein the nano particle layer is disposed so as to overlap the gate driver, and
• wherein the nano particle layer is surrounded by an organic light emitting layer of organic light emitting diode, a cathode of organic light emitting diode, the planarization layer, and an encapsulation layer disposed on the organic light emitting diode.