Pixel structure and organic light emitting device including the pixel structure

A pixel structure comprising:

• at least one electronic material layer arranged between a lower electrode and an upper electrode;
• a substrate having the lower electrode arranged in a desired pattern thereon;
• a bank covering the substrate having the lower electrode arranged thereon, and defining an opening portion to expose at least a portion of the lower electrode, the opening portion having an area greater than that of the exposed portion of the lower electrode;
• and
• an electronic material layer arranged in the opening portion and covering both an upper surface of the lower electrode and the upper electrode arranged on the electronic material layer.

An organic light emitting device, comprising:

• a pixel structure having at least one electronic material layer arranged between a lower electrode and an upper electrode, the pixel structure including:
• a substrate having the lower electrode arranged in a desired pattern thereon;
• a bank covering the substrate having the lower electrode arranged thereon, and defining an opening portion to expose at least a portion of the lower electrode, the opening portion having an area greater than that of the exposed portion of the lower electrode;
• and
• an organic light emitting material layer arranged in the opening portion and covering both an upper surface of the lower electrode and the upper electrode arranged on the organic light emitting material layer.