Display panel with different pixel density and display device

A display panel, comprising:

• a plurality of pixels, including first pixels and second pixels, wherein a first pixel includes a first light-emitting element and a first pixel circuit, connected to each other;
• the first pixel circuit includes a first drive transistor;
• a second pixel includes a second light-emitting element and a second pixel circuit, connected to each other;
• and the second pixel circuit includes a second drive transistor;
• and
• a display region, including an optical component region and a regular display region, wherein the first light-emitting element is in the optical component region;
• the second light-emitting element is in the regular display region;
• a density of the light-emitting element in the optical component region is less than a density of the light-emitting element in the regular display region, wherein:
• the first pixels include first blue pixels, first red pixels, and first green pixels;
• a width-to-length ratio of a first drive transistor corresponding to a first blue pixel is R1, a width-to-length ratio of a first drive transistor corresponding to a first red pixel is R2, and a width-to-length ratio of a first drive transistor corresponding to a first green pixel is R3, wherein R1>R2>0 and/or R1>R3>0,
• a channel width of the first drive transistor corresponding to the first red pixel is W2, a channel width of the first drive transistor corresponding to the first green pixel is W3, a channel length of the first drive transistor corresponding to the first red pixel is L2, and a channel length of the first drive transistor corresponding to the first green pixel is L3, wherein |W2-W3|≤0.5 μm, and |L2-L3|≤0.5 μm.

A display device, comprising:

• a display panel, comprising:
• a plurality of pixels, including first pixels and second pixels, wherein a first pixel includes a first light-emitting element and a first pixel circuit, connected to each other;
• the first pixel circuit includes a first drive transistor;
• a second pixel includes a second light-emitting element and a second pixel circuit, connected to each other;
• and the second pixel circuit includes a second drive transistor;
• and
• a display region, including an optical component region and a regular display region, wherein the first light-emitting element is in the optical component region;
• the second light-emitting element is in the regular display region;
• a density of the light-emitting element in the optical component region is less than a density of the light-emitting element in the regular display region, wherein:
• the first pixels include first blue pixels, first red pixels, and first green pixels;
• a channel width-to-length ratio of a first drive transistor corresponding to a first blue pixel is R1, a channel width-to-length ratio of a first drive transistor corresponding to a first red pixel is R2, and a channel width-to-length ratio of a first drive transistor corresponding to a first green pixel is R3, wherein R1>R2>0 and/or R1>R3>0.