Light emitting device with LED stack for display and display apparatus having the same

A display apparatus comprising:

• a circuit board;
• and
• a plurality of light emitting devices arranged on the circuit board, at least one of the light emitting devices comprises:
• a first substrate;
• a first LED sub-unit disposed under the first substrate;
• a second LED sub-unit disposed under the first LED sub-unit;
• a third LED sub-unit disposed under the second LED sub-unit;
• a first transparent electrode interposed between the first and second LED sub-units, and in ohmic contact with a lower surface of the first LED sub-unit;
• a second transparent electrode interposed between the second and third LED sub-units, and in ohmic contact with a lower surface of the second LED sub-unit;
• a third transparent electrode interposed between the second transparent electrode and the third LED sub-unit, and in ohmic contact with an upper surface of the third LED sub-unit;
• at least one current spreader connected to at least one of the first, second, and third LED sub-units;
• electrode pads disposed on the first substrate;
• and
• through-hole vias formed through the first substrate to electrically connect the electrode pads to the first, second, and third LED sub-units,
• wherein:
• at least one of the through-hole vias is formed through the first substrate, the first LED sub-unit, and the second LED sub-unit;
• and
• the electrode pads of the light emitting device are electrically connected to the circuit board.