Photoinduced telescopic composite membrane and light driver made of photoinduced telescopic composite membrane

The invention discloses a photoinduced telescopic composite membrane and a light driver made of the photoinduced telescopic composite membrane. The composite membrane is composed of a substrate layer, a lower electrode layer, a piezoelectric material layer, an intermediate electrode layer, a photovoltaic material layer and a top electrode layer in sequence. A piezoelectric material and a photovoltaic material are made to form a membrane mode, so that the side of the light driver is reduced; the piezoelectric membrane and the photovoltaic membrane are made to form the composite membrane, and a photoelectric effect of the photovoltaic material layer and an inverse piezoelectric effect of the piezoelectric material layer are respectively improved, so that the photoinduced telescopic effect of the light driver is improved. The cross section of a lower electrode of the light driver is designed into an L shape, and the piezoelectric material layer, the photovoltaic material layer and the top electrode layer are arranged in an L-shaped cavity and are connected with the lower electrode, so that wireless conduction between the bottom electrode and the top electrode layer is realized, the size of the light driver is further reduced, and the light driver is more beautiful.