Display substrate

At least one embodiment of the utility model provides a display substrate. The display substrate comprises a substrate; the pixel units are arranged on the substrate in an array mode, each pixel unit comprises a plurality of sub-pixels emitting light of different colors, and each sub-pixel comprises a light-emitting element and a pixel driving circuit driving the corresponding light-emitting element to emit light; the pixel defining layer is arranged on one side, far away from the substrate, of the pixel driving circuit; the pixel defining layer comprises a plurality of pixel openings, and each pixel opening corresponds to a sub-pixel. According to the embodiment of the utility model, the preparation of the RGB full-color OLED pixelated device is realized through the imaging technology of depositing the light-emitting layer and the functional layer with different colors for three times and exposing and etching for two times; the problem that the display resolution cannot be further improved when an AMOLED evaporation technology is expanded to a medium-and-large-size display product is solved, and the resolution and the display effect of a display device are improved.