2D/3D switchable display based on auxiliary electric field induction device

The invention provides a 2D/3D switchable display based on an auxiliary electric field induction device. The 2D/3D switchable display comprises an upper transparent substrate, a liquid crystal layer, a lower transparent substrate and a display panel, the upper transparent substrate is divided into a silicon dioxide layer, an electric field induction device C and an upper homogenization layer, and the lower transparent substrate is divided into an electric field induction device P, an auxiliary electric field induction device P1, a lower homogenization layer and a silicon dioxide layer. When voltage is not applied to the auxiliary electric field induction device P1 and the electric field induction device P, refractive indexes in the liquid crystal layer are uniformly distributed and have no convergence effect on light rays, and at the moment, the whole device works in a 2D mode; when voltage is applied to the auxiliary electric field induction device P1 and the electric field induction device P, a spatial non-