Display device

A display device includes: a substrate; a display element on the substrate and including a pixel electrode, an emission layer, and a counter electrode; a cover layer on the display element; a metal unit region including a plurality of metal patterns spaced apart from each other on the cap layer, each of the plurality of metal patterns having a height smaller than a wavelength of visible light; and an insulating layer buried in separation regions between the plurality of metal patterns. 一种显示装置包括：基板；显示元件，在基板上并且包括像素电极、发射层和对电极；盖层，在显示元件上；金属单元区域，包括在盖层上彼此间隔开的多个金属图案，多个金属图案中的每一个具有小于可见光的波长的高度；以及绝缘层，被掩埋在多个金属图案之间的分离区域中。