Display panel, manufacturing method thereof, and display apparatus

A display panel, comprising an array substrate and a color filter substrate opposite to each other, wherein

• the color filter substrate comprises a first substrate, a plurality of spacer pillars, and a plurality of color filter layers, the spacer pillars and the color filter layers are on a side of the first substrate facing the array substrate, and the first substrate comprises a plurality of pixel regions and a spacing region between adjacent pixel regions;
• each spacer pillar is in the spacing region, and each pixel region is provided with the color filter layer;
• each spacer pillar comprises at least one spacer layer each made of the same material as the color filter layer in one of the pixel regions;
• the array substrate comprises a second substrate and a support layer, wherein the support layer is on a side of the second substrate facing the color filter substrate, and comprises a body layer and a plurality of protrusions on a side of the body layer away from the second substrate, and at least one of the protrusions is each opposite to one of the spacer pillars;
• and
• at least one of the spacer pillars is each in direct contact with a corresponding protrusion.