Shift register unit, driving method and display device

The invention provides a shift register unit, a driving method and a display device. The shift register unit comprises an output circuit, a first node control circuit, a second node control circuit, athird node control circuit, a first control node control circuit and a first energy storage circuit. The first node control circuit controls the potential of the first node; the second node control circuit controls the potential of the second node; the first control node control circuit controls to write a second voltage signal into a first control node under the control of the potential of the first node, and writes a first voltage signal into the first control node under the control of a first clock signal and the potential of a third node; and the third node control circuit is used for writing an input signal into the third node under the control of the second clock signal. According to the invention, the number of adopted clock signals and the number of adopted transistors are reduced. 本发明提供一种移位寄存器单元、驱动方法和显示装