Display panel and preparation method thereof, and display apparatus

A preparation method of a display panel, comprising:

• forming a color filter substrate, wherein the color filter substrate comprises a first base substrate and a plurality of color resist blocks arranged at intervals on the first base substrate, the color filter substrate comprises a bending area and a non-bending area, and a density of the color resist blocks in the bending area is less than a density of the color resist blocks in the non-bending area;
• forming an array substrate, wherein the array substrate comprises a first base substrate and a plurality of pixel electrodes arranged at intervals on the first base substrate, the array substrate comprises a bending area and a non-bending area, and a density of the pixel electrodes in the bending area is less than a density of the pixel electrodes in the non-bending area;
• and
• aligning and combining the color filter substrate and the array substrate into a cell, wherein the color resist blocks are in one-to-one correspondence with the pixel electrodes,
• wherein forming the color filter substrate comprises:
• forming a first substrate;
• forming a strain layer on the first substrate, wherein the strain layer comprises a first strain region and a second strain region, and a tensile modulus of the first strain region is less than a tensile modulus of the second strain region;
• forming a black matrix on the strain layer, wherein the black matrix covers the strain layer and is provided with pixel openings exposing the second strain region;
• and
• forming the color resist blocks on the black matrix, wherein the color resist blocks cover the pixel openings;
• wherein the first substrate, the strain layer and the black matrix form the first base substrate.