A display device includes a substrate having a display area; an adhesion layer formed on the substrate surface; a plurality of chiplets adhered to the substrate and distributed within the display area, each chiplet having one or more connection pads, wherein each chiplet has more than four sides; a plurality of pixels formed over the adhesion layer in the display area, each pixel having a bottom electrode electrically connected to a connection pad of one chiplet, one or more layers of light-emitting material formed over the bottom electrode, and a top electrode formed over the one or more layers of light-emitting material; and a cover located over the top electrode and adhered to the substrate.