Organic light-emitting display device and method of manufacturing the same

An organic light-emitting display device, comprising:

• a substrate;
• a pixel-defining layer on the substrate and defining a light-emitting region;
• and
• an organic light-emitting element over the light-emitting region,
• wherein the pixel-defining layer comprises:
• a first pixel-defining layer on the substrate;
• and
• a second pixel-defining layer on the first pixel-defining layer,
• wherein the organic light-emitting element comprises:
• a first organic layer contacting the first pixel-defining layer at either end thereof;
• a second organic layer on the first organic layer and contacting the second pixel-defining layer at either end thereof;
• and
• an organic light-emitting layer on the second organic layer,
• wherein the first pixel-defining layer is lyophilic, and
• wherein the second pixel-defining layer is lyophilic.

An organic light-emitting display device, comprising:

• a substrate;
• a pixel-defining layer on the substrate and defining a light-emitting region;
• and
• an organic light-emitting element over the light-emitting region,
• wherein the pixel-defining layer comprises:
• a first pixel-defining layer on the substrate;
• and
• a second pixel-defining layer on the first pixel-defining layer,
• wherein the organic light-emitting element comprises:
• a first organic layer contacting the first pixel-defining layer at either end thereof;
• a second organic layer on the first organic layer and contacting the second pixel-defining layer at either end thereof;
• and
• an organic light-emitting layer on the second organic layer,
• wherein the first pixel-defining layer is lyophilic, and
• wherein the first organic layer is a hole injection layer and the second organic layer is a hole transporting layer.

An organic light-emitting display device, comprising:

• a substrate;
• a pixel-defining layer on the substrate and defining a light-emitting region;
• and
• an organic light-emitting element over the light-emitting region,
• wherein the pixel-defining layer comprises:
• a first pixel-defining layer on the substrate;
• and
• a second pixel-defining layer on the first pixel-defining layer,
• wherein the organic light-emitting element comprises:
• a first organic layer contacting the first pixel-defining layer at either end thereof;
• a second organic layer on the first organic layer and contacting the second pixel-defining layer at either end thereof;
• and
• an organic light-emitting layer on the second organic layer,
• wherein the first pixel-defining layer is lyophilic, and
• wherein the organic light-emitting layer further comprises a third organic layer on the second organic layer and ends of the third organic layer and ends of the first organic layer do not contact each other.

A method of manufacturing an organic light-emitting display device, comprising:

• forming a first electrode on a substrate;
• forming a pixel-defining layer, which comprises:
• an opening that exposes a part of the first electrode therethrough;
• a first pixel-defining layer that is on the first electrode and the substrate;
• and
• a second pixel-defining layer that is on the first pixel-defining layer;
• lyophobizing a surface of the pixel-defining layer and lyophilizing a surface of the first electrode;
• forming a first organic layer in the opening at a temperature in a range from a first temperature to a second temperature where the first pixel-defining layer is lyophilized;
• and
• forming a second organic layer on the first organic layer.

A method of manufacturing an organic light-emitting display device, comprising:

• forming a first electrode on a substrate;
• forming a pixel-defining layer, which comprises:
• an opening that exposes a part of the first electrode therethrough;
• a first pixel-defining layer on the first electrode and the substrate;
• and
• a second pixel-defining layer on the first pixel-defining layer;
• lyophobizing a surface of the pixel-defining layer and lyophilizing a surface of the first electrode;
• forming a first organic layer in the opening;
• lyophilizing only a surface of the first pixel-defining layer by lowering a concentration of fluorine ions at the surface of the first pixel-defining layer below a concentration of fluorine ions at a surface of the second pixel-defining layer;
• and
• forming a second organic layer on the first organic layer.

A method of manufacturing an organic light-emitting display device, comprising:

• forming a first electrode on a substrate;
• forming a pixel-defining layer, which comprises:
• an opening that exposes a part of the first electrode therethrough;
• a first pixel-defining layer on the first electrode and the substrate;
• and
• a second pixel-defining layer on the first pixel-defining layer;
• lyophobizing a surface of the pixel-defining layer and lyophilizing a surface of the first electrode;
• forming a first organic layer in the opening;
• lyophilizing only a surface of the first pixel-defining layer;
• and
• forming a second organic layer on the first organic layer,
• wherein the first organic layer is a hole injection layer and the second organic layer is a hole transporting layer.