Display substrate, display device and manufacturing method the same

A method for manufacturing a display device, comprising:

• forming a first electrode layer;
• forming an ordered porous thin film, which includes a plurality of sub-pixel regions arranged in a matrix, wherein a plurality of pore passages are formed in each sub-pixel region, an angle which is not zero is formed between an extending direction of each pore passage and a surface of the ordered porous thin film, and each pore passage at least has an opening on the surface of the ordered porous thin film;
• filling quantum dots to enable each pore passage of at least part of the pore passages to be filled with the quantum dots;
• and
• forming a second electrode layer, wherein the second electrode layer is formed on a side of the ordered porous thin film, which is away from the first electrode layer, and includes a plurality of sub-electrodes spaced apart from each other, the plurality of sub-electrodes respectively corresponding to the plurality of sub-pixel regions;
• wherein a ratio of an average size of the openings of the plurality of pore passages to an average size of the plurality of quantum dots is greater than 1 and smaller than 2.

A display substrate, comprising:

• an ordered porous thin film, including a plurality of sub-pixel regions arranged in a matrix, wherein a plurality of pore passages are formed in each sub-pixel region, an angle which is not zero is formed between an extending direction of each pore passage and a surface of the ordered porous thin film, and each pore passage has an opening on the surface of the ordered porous thin film;
• a plurality of quantum dots, respectively arranged in at least part of the plurality of pore passages;
• and
• a first electrode layer and a second electrode layer respectively arranged on two sides of the ordered porous thin film, wherein the second electrode layer includes a plurality of sub-electrodes spaced apart from each other, the plurality of sub-electrodes respectively corresponding to the plurality of sub-pixel regions;
• wherein a ratio of an average size of the openings of the plurality of pore passages to an average size of the plurality of quantum dots is greater than 1 and smaller than 2.