A head lamp (100, 100a) for a vehicle, comprising: an array module having a plurality of micro Light Emitting Diode, micro LED, chips disposed thereon and having a 3D shape concave in a first direction, wherein the array module is stepped, wherein the array module comprises: a plurality of first regions directed toward a second direction, which is a direction opposite to the first direction and is directed in a direction of forward travel of a vehicle; and a plurality of second regions directed toward at least one portion of the array module and is directed toward a third direction or a fourth direction, wherein the third direction is perpendicular to the first direction and the second direction, wherein the fourth direction is a direction opposite to the third direction, and wherein the array module in the 3D concave shape is formed to be stepped in the third direction or the fourth direction, which is at a predetermined angle relative to the first direction, wherein at least some of the plurality of micro LED chips is disposed in the first regions, wherein each of the plurality of second regions decrease in length in a direction from a periphery to a center of the array module and/or each of the plurality of first regions increase in length in a direction from the periphery to the center of the array module. an array module having a plurality of micro Light Emitting Diode, micro LED, chips disposed thereon and having a 3D shape concave in a first direction, wherein the array module is stepped, wherein the array module comprises: a plurality of first regions directed toward a second direction, which is a direction opposite to the first direction and is directed in a direction of forward travel of a vehicle; and a plurality of second regions directed toward at least one portion of the array module and is directed toward a third direction or a fourth direction, wherein the third direction is perpendicular to the first direction and the second direction, wherein the fourth direction is a direction opposite to the third direction, and wherein the array module in the 3D concave shape is formed to be stepped in the third direction or the fourth direction, which is at a predetermined angle relative to the first direction, a plurality of first regions directed toward a second direction, which is a direction opposite to the first direction and is directed in a direction of forward travel of a vehicle; and a plurality of second regions directed toward at least one portion of the array module and is directed toward a third direction or a fourth direction, wherein the third direction is perpendicular to the first direction and the second direction, wherein the fourth direction is a direction opposite to the third direction, and wherein the array module in the 3D concave shape is formed to be stepped in the third direction or the fourth direction, which is at a predetermined angle relative to the first direction, wherein at least some of the plurality of micro LED chips is disposed in the first regions, wherein each of the plurality of second regions decrease in length in a direction from a periphery to a center of the array module and/or each of the plurality of first regions increase in length in a direction from the periphery to the center of the array module.