OLED print head

An OLED print head, comprising:

• a control unit, configured to output a scan signal, an enable signal and a correction signal;
• and
• a plurality of light-emitting units, coupled to the control unit, each of the light-emitting units comprising:
• a first driving circuit, comprising a first capacitor and a first switch, and configured to store a correction voltage corresponding to the correction signal in the first capacitor in response to a trigger pulse of the scan signal, the first switch being controlled by the correction voltage;
• a second driving circuit, comprising a second capacitor and a second switch, and configured to store an enable voltage corresponding to the enable signal in the second capacitor in response to the trigger pulse of the scan signal, the second switch being controlled by the enable voltage;
• and
• an OLED, coupled to the first switch and the second switch, the first switch and the second switch being deployed on a driving path of the OLED, an upstream end of the driving path having an operating voltage, and when both the first switch and the second switch are turned on, the OLED obtaining a driving current related to the correction voltage through the driving path.