Abstract: A conductive mesh structure includes a dielectric layer, a first mesh pattern disposed on a top surface of the dielectric layer and including conductive lines that intersect each other, a second mesh pattern disposed on the top surface of the dielectric layer and including dummy lines that intersect each other and segmented portions that cut portions of each of the dummy lines, and separation portions separating the first mesh pattern and the second mesh pattern. A ratio of a width of each of the separation portions to a width of each of the segmented portions is in a range from 0.7 to 1.6.

Abstract: The present disclosure relates to an antenna element including: a dielectric layer; a radiation electrode arranged on an upper surface of the dielectric layer and including a first mesh structure; and a dummy electrode arranged on the upper surface of the dielectric layer and including a second mesh structure, in which at least one of the radiation electrode and the dummy electrode satisfies Equation 1, and an image display device including the same.

Abstract: An antenna device according to an aspect includes a dielectric layer, a radiator formed on the dielectric layer, and a transmission line connected to the radiator on the dielectric layer and formed in a mesh structure which is a set of unit cells defined by a plurality of conductive lines. A width of the transmission line may be an integer multiple of the width of the unit cell, and may be within an allowable error range.

Abstract: The present disclosure relates to an antenna element including: a dielectric layer; a radiation electrode arranged on an upper surface of the dielectric layer and including a first mesh structure; and a dummy electrode arranged on the upper surface of the dielectric layer and including a second mesh structure, in which at least one of the radiation electrode and the dummy electrode satisfies Equation 1, and an image display device including the same.

Abstract: An optical stack structure includes a window, and a polarizing layer and a touch sensor layer on a surface of the window. The optical stack structure has improved flexibility and mechanical reliability so that the optical stack structure may be applied as a window substrate of an image display device including a flexible display.