Display substrate and display device

Abstract

A display substrate includes a pixel defining layer, a plurality of light emitting devices, first isolation portions, and a light adjustment layer. The pixel defining layer has a plurality of openings. A portion of each light emitting device in at least a part of the plurality of light emitting devices is located in an opening. The light emitting device includes a first light-emitting layer and a cathode that are disposed sequentially. The first isolation portions are disposed on the pixel defining layer, and a first isolation portion is located between two adjacent openings and separates first light-emitting layers and cathodes of light emitting devices located in the two adjacent openings. The light adjusting layer covers the pixel defining layer, the plurality of light emitting devices, and the first isolation portions. A refractive index of the light adjustment layer is different from that of the first isolation portion.