Anti-Peep Structure, Method for Manufacturing Anti-Peep Structure, and Display Device

A method for manufacturing an anti-peep structure, comprising:

• forming a plurality of grooves in a substrate at a first side where a light incident surface or a light outgoing surface is located, the substrate being made of a first material having a first refractive index;
• filling the plurality of grooves with a second material having a second refractive index;
• and
• forming a refractive index regulating component such that the refractive index regulating component is configured to control the second refractive index, and a viewing angle at the light outgoing surface is determined by a difference between the first refractive index and the second refractive index.

A method for manufacturing an anti-peep structure, comprising:

• forming a first transparent electrode on a substrate at a first side, the substrate being made of a first material having a first refractive index;
• forming a plurality of grooves in the substrate at a second side opposite to the first side;
• filling the plurality of grooves with a second material having a second refractive index;
• and
• forming a second transparent electrode on the substrate to seal the second material;
• wherein the first transparent electrode and the second transparent electrode are configured to generate an electric field to control the second refractive index, and a viewing angle of the anti-peep structure is determined by a difference between the first refractive index and the second refractive index.