Electrode structure and method of manufacturing the organic light emitting unit

An electrode structure and a method of manufacturing the organic light emitting unit. The electrode structure comprising: a substrate; a plurality of strip-shaped spacers disposed on the substrate; and an electrode covering the surface of the substrate, each of the electrode strip includes a first spacer portion of the surface and two adjacent bars between the second portion shaped spacer; each spacer strip comprises upper and lower layers stacked on each other, the upper layer and the lower layer are made of different materials; completely cover the bottom surface of the upper top surface of the lower layer , and in the direction of the plane extending perpendicular to the spacer strip, the width of the bottom surface of the upper layer is greater than the width of the top surface of the lower layer.