Display substrate, display apparatus, and method of fabricating display substrate

A method of fabricating a display substrate, comprising:

• forming an initial anode material layer extending at least partially across multiple subpixels;
• and
• performing a second impurity doping on the initial anode material layer to form an anode material layer comprising a first anode portion at least partially in subpixel regions and a second anode portion at least partially in an inter-subpixel region;
• wherein the first anode portion comprises a doped anode impurity;
• the first anode portion and the second anode portion comprise at least one material in common;
• a weight percentage of the doped anode impurity in the first anode portion is higher than a weight percentage of the doped anode impurity in the second portion;
• a weight ratio of the doped anode impurity to the at least one material in common in the first anode portion is higher than a weight ratio of the doped anode impurity to the at least one material in common in the second anode portion;
• the second anode portion spaces apart adjacent subpixels;
• and
• the first anode portion comprises an anode of a respective subpixel.