Light emitting device having commonly connected LED sub-units

A light emitting device for a display, comprising:

• a first LED sub-unit;
• a second LED sub-unit disposed adjacent to the first LED sub-unit;
• a third LED sub-unit disposed adjacent to the second LED sub-unit;
• and
• electrode pads disposed on the first LED sub-unit and electrically connected to the first, second, and third LED sub-units, the electrode pads comprising a common electrode pad electrically connected to each of the first, second, and third LED sub-units, and first, second, and third electrode pads connected to a respective one of the first, second, and third LED sub-units,
• wherein:
• the common electrode pad, the second electrode pad, and the third electrode pad are electrically connected to the second LED sub-unit and the third LED sub-unit through holes that pass through the first LED sub-unit;
• the first LED sub-unit, the second LED sub-unit, and the third LED sub-unit are configured to be independently driven;
• light generated in the first LED sub-unit is configured to be emitted to the outside of the light emitting device through the second LED sub-unit and the third LED sub-unit;
• and
• light generated in the second LED sub-unit is configured to be emitted to the outside of the light emitting device through the third LED sub-unit.