Patent ID: 11638387

Abstract:
An OLED display panel comprises a pixel array and a substrate. The pixel array includes a plurality of pixels, each of the pixel includes multiple sub-pixels. Each of the sub-pixels includes multiple layers stacked in processing sequence on the substrate, a driving circuit layer, an uneven surface layer, and a light-emitting layer. The uneven surface layer includes a plurality of concave-convex structures. In each pixel, there are at least two sub-pixels corresponding to different colors respectively, and possessing different numbers of concave-convex structures, respectively. Moreover, those sub-pixels corresponding to a same color in the pixel array possess a same number of concave-convex structures. The light-emitting layer conformal to the concave-convex structures has increased surface area, so that the effective light-emitting area of the display panel is increased and the brightness of the OLED display panel is enhanced accordingly.