Display panel with light interference and manufacturing method therefor, and display device

A display panel, comprising:

• a base substrate, and a plurality of pixels arranged in an array on the base substrate,
• wherein each of the plurality of pixels comprises a plurality of sub-pixels of different colors;
• each of the plurality of sub-pixels comprises:
• a reflection layer on the base substrate;
• a first color filter layer at a side of the reflection layer away from the base substrate;
• a first electrode at a side of the first color filter layer away from the base substrate;
• a light-emitting layer at a side of the first electrode away from the base substrate;
• and
• a second electrode at a side of the light-emitting layer away from the base substrate, and
• in each of the plurality of pixels, a color of the first color filter layer of each of the plurality of sub-pixels is a same as a color of a respective sub-pixel where the first color filter layer of the respective sub-pixel is located, and thicknesses in a direction perpendicular to the base substrate of the first color filter layers of the plurality of sub-pixels are different from each other, wherein each of the plurality of sub-pixels further comprises:
• a second color filter layer at a side of the second electrode away from the base substrate;
• and
• in each of the plurality of sub-pixels, a color of the second color filter layer is the same as the color of the first color filter layer.

A manufacturing method of a display panel, comprising:

• providing a base substrate;
• forming a plurality of pixels arranged in an array on the base substrate, wherein each of the plurality of pixels comprises a plurality of sub-pixels of different colors, and forming the each of the plurality of sub-pixels comprises:
• forming a reflection layer on the base substrate;
• forming a first color filter layer, wherein the first color filter layer is at a side of the reflection layer away from the base substrate;
• forming a first electrode, wherein the first electrode is at a side of the first color filter layer away from the base substrate;
• forming a light-emitting layer, wherein the light-emitting layer is at a side of the first electrode away from the base substrate;
• and
• forming a second electrode, wherein the second electrode is at a side of the light-emitting layer away from the base substrate,
• wherein, in each of the plurality of pixels, a color of the first color filter layer of each of the plurality of sub-pixels is the same as a color of a respective sub-pixel where the first color filter layer of the respective sub-pixel is located, and thicknesses of the first color filter layers of the plurality of sub-pixels are different from each other.