Display device having a sealing film covering a cathode

A display device comprising:

• an insulating substrate;
• a circuit layer disposed on the insulating substrate;
• an anode disposed on the circuit layer;
• a pixel isolation film formed on the anode;
• an organic layer having light emitting element disposed on the pixel isolation film;
• a cathode covering the organic layer;
• and
• a sealing film covering the cathode,
• wherein
• the circuit layer includes a thin film transistor and a passivation film covering the thin film transistor,
• the pixel isolation film covers an edge portion of the anode and has a contact hole exposing a part of the anode,
• the organic layer is in contact with the anode through the contact hole,
• the sealing film includes a first barrier layer, a base layer on the first barrier layer, an interlayer on the base layer, and a second barrier layer on the interlayer,
• the first barrier layer includes silicon nitride or silicon oxynitride,
• the base layer includes silicon oxide or amorphous silicon and is in contact with the first barrier layer,
• the interlayer is made of organic material and is sandwiched between the base layer and the second barrier layer,
• the second barrier layer includes silicon nitride or silicon oxynitride,
• the base layer has a flat surface corresponding to an area where the organic layer is in contact with the anode and an inclined surface corresponding to the contact hole of the pixel isolation film,
• the interlayer is disposed on a boundary portion between the flat surface and the inclined surface, and
• the second barrier layer is in contact with the base layer at the flat surface within the contact hole.