Organic light emitting display panel having improved light efficiency and organic light emitting display device including the same

An organic light emitting display device including an active area with a plurality of subpixels, the organic light emitting display device comprising:

• a substrate;
• an insulation film disposed on the substrate and including at least one concave portion, the at least one concave portion including a flat portion and a linear inclined portion surrounding the flat portion in at least one subpixel area;
• a first electrode disposed on a portion of the at least one concave portion and a surrounding portion disposed around the at least one concave portion in the at least one subpixel area, the first electrode including at least one protrusion on a surface thereof;
• a bank including a first portion positioned on a portion of the at least one concave portion and a second portion positioned on the surrounding portion;
• an organic layer overlapping the at least one concave portion and disposed on the first electrode, the organic layer having a surface shape corresponding to a shape of a top surface of the first electrode having the at least one protrusion on the first electrode;
• and
• a second electrode having a surface shape corresponding to the surface shape of the organic layer in an area overlapping the organic layer,
• wherein an area in which the first electrode does not overlap the bank is a first light emitting part in an area where the flat portion is provided,
• wherein an area in which the bank overlaps the first electrode is a first non-light emitting part in the area where the flat portion is provided, and
• wherein an area corresponding to the inclined portion is a second light emitting part.

An organic light emitting display panel including an active area with a plurality of subpixels, the organic light emitting display panel comprising:

• a substrate;
• an insulation film disposed on the substrate and including at least one concave portion, the at least one concave portion including a flat portion and a linear inclined portion surrounding the flat portion in at least one subpixel of the active area;
• a first electrode disposed on a portion of the at least one concave portion and a surrounding portion disposed around the at least one concave portion in the at least one subpixel area, the first electrode including at least one protrusion on a surface thereof;
• a bank including a first portion disposed on the first electrode in an area corresponding to a portion of the at least one concave portion and a second portion disposed on the insulation film and the first electrode in an area corresponding to the surrounding portion;
• an organic layer overlapping the at least one concave portion and disposed on the first electrode, the organic layer having a surface shape corresponding to a shape of a top surface of the first electrode having the at least one protrusion on the first electrode;
• and
• a second electrode disposed on the organic layer and the bank, the second electrode having a surface shape corresponding to the surface shape of the organic layer in an area overlapping the organic layer,
• wherein the at least one protrusion is provided in an area corresponding to an area where the linear inclined portion of the at least one concave portion is disposed.

An organic light emitting display panel including an active area with a plurality of subpixels, the organic light emitting display panel comprising:

• a substrate;
• an insulation film disposed on the substrate and including at least one concave portion, the at least one concave portion including a flat portion and a linear inclined portion surrounding the flat portion in at least one subpixel of the active area;
• a first electrode disposed on a portion of the at least one concave portion and a surrounding portion disposed around the at least one concave portion in the at least one subpixel area, the first electrode including at least one protrusion on a surface thereof;
• a bank including a first portion disposed on the first electrode in an area corresponding to a portion of the at least one concave portion and a second portion disposed on the insulation film and the first electrode in an area corresponding to the surrounding portion;
• an organic layer overlapping the at least one concave portion and disposed on the first electrode, the organic layer having a surface shape corresponding to a shape of a top surface of the first electrode having the at least one protrusion on the first electrode;
• and
• a second electrode disposed on the organic layer and the bank, the second electrode having a surface shape corresponding to the surface shape of the organic layer in an area overlapping the organic layer,
• wherein the at least one protrusion is provided on the top surface of the first electrode disposed in the contact hole.

An organic light emitting display panel including an active area with a plurality of subpixels, the organic light emitting display panel comprising:

• a substrate;
• an insulation film disposed on the substrate and including at least one concave portion, the at least one concave portion including a flat portion and a linear inclined portion surrounding the flat portion in at least one subpixel of the active area;
• a first electrode disposed on a portion of the at least one concave portion and a surrounding portion disposed around the at least one concave portion in the at least one subpixel area, the first electrode including at least one protrusion on a surface thereof;
• a bank including a first portion disposed on the first electrode in an area corresponding to a portion of the at least one concave portion and a second portion disposed on the insulation film and the first electrode in an area corresponding to the surrounding portion;
• an organic layer overlapping the at least one concave portion and disposed on the first electrode, the organic layer having a surface shape corresponding to a shape of a top surface of the first electrode having the at least one protrusion on the first electrode;
• and
• a second electrode disposed on the organic layer and the bank, the second electrode having a surface shape corresponding to the surface shape of the organic layer in an area overlapping the organic layer,
• wherein a density of the at least one protrusion provided in an area corresponding to an area where the flat portion of the at least one concave portion is disposed differs from a density of the at least one protrusion provided in an area corresponding to an area where the linear inclined portion of the at least one concave portion is disposed.