Display device and method for manufacturing thereof

A method for manufacturing a display device having a plurality of pixels arranged in a matrix form, comprising:

• a step of forming insulating banks over a substrate;
• a patterning step of forming a first electrode over the substrate and between the insulating banks;
• a step of forming a conductive polymer film over the first electrode to cover surfaces of the insulating banks;
• a step of forming an organic thin film containing an organic compound capable of causing electroluminescence over the conductive polymer film and between the insulating banks;
• and
• a step of forming a second electrode over the organic thin film,
• wherein the conductive polymer film formed in a vicinity of a top edge of the insulating bank has a first thickness, and the conductive polymer film formed in a vicinity of a center of the first electrode between the insulating banks has a second thickness, and
• wherein the second thickness is thicker than the first thickness.

A display device having a plurality of pixels arranged in a matrix form, comprising:

• a substrate;
• insulating banks formed over the substrate;
• a first electrode formed over the substrate and between the insulating banks;
• a conductive polymer film formed over the first electrode and on at least top surfaces of the insulating banks;
• an organic thin film containing an organic compound capable of causing electroluminescence formed over the conductive polymer film and between the insulating banks;
• and
• a second electrode formed over the organic thin film,
• wherein top surfaces of the insulating banks are not covered with the organic thin film containing an organic compound capable of causing electroluminescence,
• wherein the conductive polymer film formed in a vicinity of a top edge of the insulating bank has a first thickness, and the conductive polymer film formed in a vicinity of a center of the first electrode between the insulating banks has a second thickness, and
• wherein the second thickness is thicker than the first thickness.

A display device having a plurality of pixels arranged in a matrix form, comprising:

• a substrate;
• tapered insulating banks formed over the substrate;
• a first electrodes formed over the substrate and between the tapered insulating banks;
• a conductive polymer film covering surfaces of the tapered insulating banks and formed over the first electrode;
• an organic thin film containing an organic compound capable of causing electroluminescence formed over the conductive polymer film and between the tapered insulating banks;
• and
• a second electrode formed over the organic thin film,
• wherein the conductive polymer film formed in a vicinity of a top edge of the insulating bank has a first thickness, and the conductive polymer film formed in a vicinity of a center of the first electrode between the insulating banks has a second thickness, and
• wherein the second thickness is thicker than the first thickness.

A display device having a plurality of pixels arranged in a matrix form, comprising:

• a substrate;
• tapered insulating banks formed over the substrate;
• a first electrode formed over the substrate and between the tapered insulating banks;
• a conductive polymer film formed over the first electrode and over at least top surfaces of the insulating banks;
• an organic thin film containing an organic compound capable of causing electroluminescence formed over the conductive polymer film and between the tapered insulating banks;
• and
• a second electrode formed over the organic thin film,
• wherein top surfaces of the insulating banks are not covered with the organic thin film containing an organic compound capable of causing electroluminescence,
• wherein the conductive polymer film formed in a vicinity of a top edge of the insulating bank has a first thickness, and the conductive polymer film formed in a vicinity of a center of the first electrode between the insulating banks has a second thickness, and
• wherein the second thickness is thicker than the first thickness.