Pixel driving circuit and display panel

A display panel, comprising a pixel unit and a pixel driving circuit configured to drive the pixel unit to operate;

• the pixel unit comprising a first-color subpixel, a second-color subpixel, and a third-color subpixel;
• the pixel driving circuit comprising a first driving unit, a second driving unit, and a third driving unit, the first driving unit being electrically connected with the first-color subpixel and configured to drive according to a first voltage signal the first-color subpixel to operate;
• the second driving unit being electrically connected with the second-color subpixel and configured to drive according to the first voltage signal the second-color subpixel to operate;
• and the third driving unit being electrically connected with the third-color subpixel and configured to drive according to the first voltage signal the third-color subpixel to operate;
• wherein the first driving unit at least comprises a first capacitor, the second driving unit at least comprises a second capacitor, and the third driving unit at least comprises a third capacitor, at least one of the first capacitor, the second capacitor, and the third capacitor having a different capacitance;
• wherein the first driving unit comprises a first transistor, the second driving unit comprises a second transistor, and the third driving unit comprises a third transistor;
• and the first transistor has a width-to-length ratio of a source-drain channel different from the second transistor and/or the third transistor.