Display Panel and Preparation Method Therefor, and Electronic Device

A display panel, comprising:

• a first substrate and a second substrate arranged opposite to each other, wherein a side of the second substrate is a light incidence side;
• a reflection layer located at a side of the first substrate;
• a color resistance layer located at a side of the reflection layer away from the first substrate;
• a pixel electrode layer located at a side of the color resistance layer away from the first substrate, wherein the pixel electrode layer comprises a plurality of sub-pixel electrodes arranged at intervals;
• a common electrode layer located at a side of the second substrate;
• and
• pixel isolation posts located between the first substrate and the second substrate and defining a plurality of sub-pixel regions between the first substrate and the second substrate, wherein there are black charged microspheres and white charged microspheres in the plurality of sub-pixel regions;
• wherein there are at least two of the sub-pixel electrodes in one of the sub-pixel regions, and an area of orthographic projections of the sub-pixel electrodes in one of the sub-pixel regions on the first substrate is smaller than an area of an orthographic projection of the color resistance layer on the first substrate.