Registry lag has field effect transistors.

In a shift register, each stage In provided to control an output line R (n) corresponding, comprises a transistor T5 of the same technology and the same polarity as the output transistor T3 which controls the output line. This transistor is connected so as to be subjected to conditions similar polarization as the output transistor, so that its threshold voltage identical in early life to that of the output transistor, also derives fast or faster. This transistor T5 is used to adjust the precharge voltage V1 'of the gate g3 of the output transistor T3 to its conducting performance during the precharge phase and or selection. Application to flat screens integrated active matrix.