Slit griting, method for manufacturing the same and display device

A slit grating, comprising an upper substrate and a lower substrate arranged hermetically and oppositely to each other to form a cell, and a liquid composite layer arranged between the upper substrate and the lower substrate,

• wherein the liquid composite layer consists of a light-shielding liquid and a light-transmitting liquid incompatible with each other,
• a first transparent conductive layer, an insulating layer, a second transparent conductive layer and an electric-controlled dielectric layer are formed sequentially at an upper surface of the lower substrate, and the electric-controlled dielectric layer has an electrically-induced light-shielding-liquid-philic or light-shielding-liquid-phobic property, and
• the second transparent conductive layer comprises a plurality of parallel, bar-like electrodes, the electric-controlled dielectric layer comprises a plurality of bar-like electric-controlled dielectric sublayers corresponding to regions where the bar-like electrodes are located, and the bar-like electrodes and the first transparent conductive layer are configured to control the respective bar-like electric-controlled dielectric sublayers to absorb or repel the light-shielding liquid.