POWER SUPPLY CIRCUIT AND ORGANIC LIGHT-EMITTING DIODE DISPLAY DEVICE

摘要

The present invention provides a power supply circuit and an OLED display device, belongs to the field of OLED display technology, and can solve the problem that existing power supply circuits have low efficiency when brightness of the OLED display panel is low. The power supply circuit is used for proving an anode voltage and a cathode voltage for an OLED display panel, a difference between the anode voltage and the cathode voltage being a driving voltage, and the power supply circuit includes: a current detection unit for generating a control signal according to a driving current of the OLED display panel; and a driving voltage unit for generating, according to the control signal, a driving voltage positively correlated with the driving current, and including an anode voltage unit for generating an anode voltage and a cathode voltage unit for generating a cathode voltage.

主权项

1. A power supply circuit, for proving an anode voltage and a cathode voltage for an organic light-emitting diode display panel, a difference between the anode voltage and the cathode voltage being a driving voltage, wherein the power supply circuit comprises:
a current detection unit, which is used for generating a control signal according to a driving current of the organic light-emitting diode display panel; and a driving voltage unit, which is used for generating, according to the control signal, a driving voltage positively correlated with the driving current, and comprises an anode voltage unit for generating an anode voltage and a cathode voltage unit for generating a cathode voltage.