Digital microfluidic chip and digital microfluidic system

A digital microfluidic chip, comprising:

• an upper substrate and a lower substrate disposed oppositely;
• a first hydrophobic layer disposed on a side surface of the lower substrate facing the upper substrate;
• a second hydrophobic layer disposed on a side surface of the upper substrate facing the lower substrate, with a space between the first hydrophobic layer and the second hydrophobic layer forming a droplet accommodation space;
• and
• a plurality of drive circuits and a plurality of addressing circuits, located between the lower substrate and the upper substrate,
• wherein one of the plurality of addressing circuits corresponds to at least one of the plurality of drive circuits;
• wherein each of the drive circuits comprises a driving electrode located between the lower substrate and the first hydrophobic layer, and a reference electrode located between the upper substrate and the second hydrophobic layer;
• wherein each of the addressing circuits comprises a bottom electrode, a photoelectric conversion layer and a top electrode disposed in a stacked manner between the lower substrate and the first hydrophobic layer, wherein the bottom electrode is closer to the lower substrate than the top electrode, and the top electrode is a transparent electrode;
• wherein a layer where the top electrode is located and the layer where the driving electrodes are located are a same film layer.