Organic light-emitting diode display panel and organic light-emitting diode display device

An organic light-emitting diode (OLED) display panel, comprising:

• a first substrate;
• a first electrode layer disposed on the first substrate and including a plurality of first electrodes;
• a first hole transport layer disposed on a surface of the first electrode layer far away from the first substrate, and including a plurality of hole transport units, wherein the plurality of hole transport units are arranged in correspondence with the plurality of first electrodes respectively;
• a plurality of light-emitting devices disposed on a surface of the first hole transport layer far away from the first electrode layer, wherein the plurality of the light-emitting devices are arranged in correspondence with the plurality of hole transport units respectively, the light-emitting devices include m number of colors, where m is a positive integer, one light-emitting device corresponds to one color, and the hole transport units corresponding to the light-emitting devices of two different colors have different mobility;
• and
• a second electrode layer disposed on a surface of the plurality of light-emitting devices far away from the first hole transport layer.