| abstract |
The invention discloses a display device and a preparation method of the display device. The display device comprises: a substrate; a pixel definition layer, which is arranged on the substrate and has a plurality of pixel openings; a surface and a surface extending to the pixel definition layer, the surface-active nano-layer covering a plurality of nanoparticles; and a light-emitting layer disposed in the plurality of pixel openings. In the present invention, a surface active nano-layer covering a plurality of nanoparticles is arranged, and the ink spreads evenly along the dispersed flow of the nanoparticles, so that the ink can cover the corners of the bottom of the opening, the wettability is improved, and further The color mixing phenomenon between adjacent pixel units is improved; at the same time, the flatness of the upper surface of the surface active nano-layer after spreading is high, which matches the energy level of the light-emitting layer and improves the uniformity of the light-emitting layer. Avoid transmission difficulties. |