Display panel and display apparatus

A display apparatus, comprising a display panel, wherein the display panel comprises M pixel driving circuits and N sub-pixel units, wherein M<N, and M and N are each a positive integer;

• and
• the M pixel driving circuits are configured to drive the N sub-pixel units to emit light;
• wherein one of the following is satisfied:
• the N sub-pixel units have a same emission color, each of the M pixel driving circuits comprises a driving transistor, the driving transistor comprises an n-channel thin-film transistor, and two of the M pixel driving circuits are configured to drive different numbers of sub-pixel units among the N sub-pixel units, wherein among the M pixel driving circuits, an output terminal of a driving transistor of one pixel driving circuit is electrically connected to N−M+1 sub-pixel units of the N sub-pixel units, and an output terminal of a driving transistor of each of other pixel driving circuits is electrically connected to one of the N sub-pixel units;
• emission colors of the N sub-pixel units are same, each of the M pixel driving circuits comprises a driving transistor, the driving transistor comprises a p-channel thin-film transistor, and the M pixel driving circuits comprise an i-th pixel driving circuit and an j-th pixel driving circuit, wherein 1≤i≤M, 1≤j≤M, and i≠j, wherein a difference ΔI between a driving current I1 output from the i-th pixel driving circuit and a driving current I2 output from the j-th pixel driving circuit satisfies ΔI/((I1+I2)/2)≤20%;
• or
• the N sub-pixel units comprise N1 first sub-pixel units and N2 second sub-pixel units, and an emission color of the first sub-pixel units is different from an emission color of the second sub-pixel units, wherein N1 and N2 are each a positive integer and N1+N2≤N, and among the M pixel driving circuits, M1 pixel driving circuits are configured to drive the N1 first sub-pixel units to emit light, M2 pixel driving circuits are configured to drive the N2 second sub-pixel units to emit light, wherein M1 and M2 are each a positive integer, and M1+M2≤M, wherein N1/M1<N2/M2.