The display substrate and a display device

The present invention discloses a display substrate and a display device. The display substrate comprises a substrate, thin film transistors (TFTs) are formed on the substrate, black matrix figures are formed on the TFTs and define a red light emitting zone, a green light emitting zone and a blue light emitting zone, a red color conversion figure and a red light filtering figure disposed above the red color conversion figure are formed within the red light emitting zone, and a green color conversion figure and a green light filtering figure disposed above the green color conversion figure are formed within the green light emitting zone. With adoption of the above technical scheme, consumption of backlight brightness in a light filtering process can be reduced to the largest extent, and thus low-power-consumption color display is realized. In addition, by forming support figures between the black matrix and the TFTs as well as signal routes, influences of the black matrix to the TFTs and the signal routes are thus reduced.