Antenna package and image display device including the same

An antenna package, comprising:

• an antenna unit;
• and
• a circuit board electrically connected to the antenna unit, the circuit board comprising:
• a core layer;
• a signal transmission wiring disposed on one surface of the core layer, the signal transmission wiring having one end portion connected to the antenna unit;
• a ground layer disposed on an opposite surface facing the one surface of the core layer;
• a first via structure formed through the core layer and arranged around the one end portion of the signal transmission wiring to be in contact with the ground layer;
• and
• a ground pattern disposed around an opposite end portion of the signal transmission wiring on the one surface of the core layer.