In an embodiment a method for producing an array of light emitting elements includes providing a growth substrate, applying a mask having a plurality of apertures to the growth substrate, growing structures into the apertures and processing at least some of the structures into light emitting elements, wherein adjacent apertures are arranged at a first distance to each other, wherein adjacent light emitting elements are arranged at a second distance to each other, wherein the second distance is greater than the first distance, wherein at least some of the structures are reduced in an area and the reduced structures are processed into light emitting elements, and wherein the structures are reduced in area by material removal.

In an embodiment a method for producing an array of light emitting elements includes providing a growth substrate, applying a mask having a plurality of apertures to the growth substrate, growing structures into the apertures and processing at least some of the structures into light emitting elements, wherein adjacent apertures are arranged at a first distance to each other, wherein adjacent light emitting elements are arranged at a second distance to each other, wherein the second distance is greater than the first distance, wherein at least some of the structures are reduced in an area and the reduced structures are processed into light emitting elements, and wherein the structures are reduced in area by material removal.

A light emitting element includes a first element rod including a first semiconductor layer and an active layer and having a first inclination angle on a side surface; a second element rod on the first element rod and having a second inclination angle on a side surface; a third element rod on the second element rod and having a third inclination angle on a side surface, the second inclination angle being smaller than the first inclination angle and the third inclination angle; a protective layer around one side and an other side of the first element rod, a side of the second element rod, and a side of the third element rod; and a contact electrode around the protective layer and electrically connected to the first semiconductor layer.

A display device includes a bank including an opening defining pixels, light emitting elements disposed in the pixels, a color conversion layer disposed on the light emitting elements in the opening, a capping layer overlapping the color conversion layer, and a color filter layer disposed on the capping layer. The color filter layer includes a low refractive material.

A display device includes a bank including an opening defining pixels, light emitting elements disposed in the pixels, a color conversion layer disposed on the light emitting elements in the opening, a capping layer overlapping the color conversion layer, and a color filter layer disposed on the capping layer. The color filter layer includes a low refractive material.

A display device can include a substrate having a display region, a non-display region and a bending region, an adhesive layer disposed on the substrate, a pixel driving circuit disposed on the adhesive layer in the display region, a buffer layer disposed on the adhesive layer and configured to cover the pixel driving circuit, a second protective pattern disposed in the non-display region to surround the display region, a first inorganic film disposed on the pixel driving circuit, and a second inorganic film disposed on the second protective pattern in the display region and the non-display region. The first inorganic film and the second inorganic film overlap in a region overlapping the second protective pattern.

A display device can include a substrate having a display region, a non-display region and a bending region, an adhesive layer disposed on the substrate, a pixel driving circuit disposed on the adhesive layer in the display region, a buffer layer disposed on the adhesive layer and configured to cover the pixel driving circuit, a second protective pattern disposed in the non-display region to surround the display region, a first inorganic film disposed on the pixel driving circuit, and a second inorganic film disposed on the second protective pattern in the display region and the non-display region. The first inorganic film and the second inorganic film overlap in a region overlapping the second protective pattern.

A display device includes a substrate including a first area and a second area surrounding the first area, a first electrode disposed in the first area, a first bank layer disposed on the first electrode and defining a first opening that overlaps the first electrode and a second opening that overlaps the second area, an intermediate layer disposed on the first electrode, a second electrode disposed on the intermediate layer, and an encapsulation layer disposed on the second electrode and defining a third opening that overlaps the second area, wherein the first bank layer includes a first sub-bank layer and a second sub-bank layer, the second sub-bank layer being disposed on the first-sub bank layer and including a first tip extending toward the first opening and a second tip extending toward the second opening.

A display device includes a substrate including a first area and a second area surrounding the first area, a first electrode disposed in the first area, a first bank layer disposed on the first electrode and defining a first opening that overlaps the first electrode and a second opening that overlaps the second area, an intermediate layer disposed on the first electrode, a second electrode disposed on the intermediate layer, and an encapsulation layer disposed on the second electrode and defining a third opening that overlaps the second area, wherein the first bank layer includes a first sub-bank layer and a second sub-bank layer, the second sub-bank layer being disposed on the first-sub bank layer and including a first tip extending toward the first opening and a second tip extending toward the second opening.

A semiconductor light-emitting element includes a light-emitting portion comprising a first region and a second region on the first region, a first electrode, a second electrode on the second region, and a passivation layer surrounding the second region. The first electrode includes a first conductive layer surrounding the first region, and a second conductive layer surrounding the first region on the first conductive layer.