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|1. (WO2017150443) ACTIVE MATRIX SUBSTRATE, AND LIQUID CRYSTAL DISPLAY DEVICE PROVIDED WITH ACTIVE MATRIX SUBSTRATE|
|Applicants:||SHARP KABUSHIKI KAISHA
|Title:||ACTIVE MATRIX SUBSTRATE, AND LIQUID CRYSTAL DISPLAY DEVICE PROVIDED WITH ACTIVE MATRIX SUBSTRATE|
This active matrix substrate is provided with a gate driver including a plurality of levels of shift registers (240). Each of the shift registers is provided with: a plurality of oxide semiconductor TFTs; a first input terminal which receives a set signal; a second input terminal which receives a clock signal CK; a third input terminal which receives a clear signal CLR; and an output terminal which outputs a gate output signal to one of a plurality of gate bus lines. The high level-side electric potentials of the clock signal and the clear signal are the same. The low level-side electric potentials of the clock signal and the clear signal are also the same. The plurality of oxide semiconductor TFTs include a first TFT (101) having a back gate structure. A main gate electrode of the first TFT (101) is connected to the third input terminal or a negative-side power supply voltage VSS. The electric potential of a back gate electrode is set to a positive-side power supply voltage VDD or ground electric potential.