Three dimensionally structured semiconductor light emitting diode and display apparatus

A three-dimensionally structured semiconductor light emitting diode, comprising:

• a first conductivity-type semiconductor rod having first and second portions integral with each other, the first portion defining a first surface, the second portion defining a second surface opposite the first surface, and a side surface extending between the first surface and the second surface;
• an active layer and a second conductivity-type semiconductor layer sequentially disposed on a lateral surface of the second portion of the first conductivity-type semiconductor rod;
• an insulating cap layer on the second surface of the first conductivity-type semiconductor rod;
• a transparent electrode layer on the insulating cap layer and on the second conductivity-type semiconductor layer;
• and
• a passivation layer on the transparent electrode layer, the passivation layer exposing a portion of the transparent electrode layer on the insulating cap layer.

A display device, comprising:

• a plurality of pixels;
• a first electrode portion and a second electrode portion in each of the plurality of pixels, the first and second electrode portions being spaced apart from each other;
• and
• a three-dimensionally structured semiconductor light emitting diode between the first electrode portion and the second electrode portion in each of the plurality of pixels, the three-dimensionally structured semiconductor light emitting diode including a first conductivity-type semiconductor nano-rod with a first surface and a transparent electrode layer at opposite ends thereof, the first surface and the transparent electrode layer being electrically connected to the first electrode portion and the second electrode portion, respectively.