Display panel and display device

A display panel, comprising:

• a base substrate;
• a plurality of sub-pixels, disposed on the base substrate, wherein each sub-pixel comprises a light-emitting device and a sub-pixel circuit for driving the light-emitting device to emit light, and the plurality of sub-pixels comprise a first sub-pixel, a second sub-pixel and a third sub-pixel for displaying different colors;
• a pixel circuit layer, comprising sub-pixel circuits of the plurality of sub-pixels and comprising a first sub-pixel circuit, a second sub-pixel circuit and a third sub-pixel circuit for respectively driving light-emitting devices of the first sub-pixel, the second sub-pixel and the third sub-pixel to emit light;
• a planarization layer, disposed on a side of the pixel circuit layer away from the base substrate;
• and
• a pixel defining layer, disposed on a side of the planarization layer away from the pixel circuit layer, wherein the pixel defining layer has a plurality of sub-pixel openings each configured to define a light-emitting region of a corresponding sub-pixel, and at least a part of the light-emitting device of each sub-pixel is located in a corresponding sub-pixel opening, wherein the plurality of sub-pixel openings comprise a first sub-pixel opening, a second sub-pixel opening and a third sub-pixel opening corresponding to the first sub-pixel, the second sub-pixel and the third sub-pixel, respectively;
• wherein the pixel circuit layer comprises a first conductive layer comprising a plurality of first circuit patterns of the plurality of sub-pixels, and an orthographic projection of the plurality of first circuit patterns on the base substrate overlaps with an orthographic projection of at least one of the first sub-pixel opening, the second sub-pixel opening and the third sub-pixel opening on the base substrate;
• and
• a ratio of an overlapping area of the plurality of first circuit patterns with the third sub-pixel opening to an area of the third sub-pixel opening is smaller than a ratio of an overlapping area of the plurality of first circuit patterns with the first sub-pixel opening to an area of the first sub-pixel opening or a ratio of an overlapping area of the plurality of first circuit patterns with the second sub-pixel opening to an area of the second sub-pixel opening.