Display substrate and display panel

The invention provides a display substrate and a display panel, and relates to the technical field of display. The pixel defining layer is positioned on the substrate; the pixel defining layer comprises a partition part and a plurality of first openings; a plurality of second openings are formed in the partition part, and the depth of the first opening in the direction perpendicular to the plane where the substrate is located is larger than that of the second opening in the direction perpendicular to the plane where the substrate is located; the light-emitting units comprise light-emitting functional layers, the light-emitting functional layers are arranged in the first openings, and the light-emitting functional layers are arranged in at least part of the second openings. The display panel has the advantages of high light emitting efficiency of a positive visual angle, high color purity, good display effect and low power consumption. 本申请提供了一种显示基板、显示面板，涉及显示技术领域，该显示基板包括衬底；位于衬底上的像素界定层；像素界定层包括隔挡部以及多个第一开口；隔挡部上设置有