Light guiding component and manufacturing method thereof, eyeball tracking module and method, video eyeglass

A method for manufacturing a light guiding component, comprising:

• providing a first substrate;
• forming a first electrode on the first substrate;
• forming at least one liquid crystal structure on the first electrode, wherein the liquid crystal structure comprises liquid crystal molecules;
• providing a second substrate;
• forming a second electrode on the second substrate, wherein the first electrode and the second electrode are configured to control a deflection direction of the liquid crystal molecules with an applied voltage, such that a light ray incident to the light guiding component meeting a threshold condition is emitted along a predetermined direction;
• and
• disposing the second substrate on which the second electrode is formed on the liquid crystal structure,
• wherein forming at least one liquid crystal structure on the first electrode comprises:
• coating a liquid crystal material comprising a first liquid crystal material and a second liquid crystal material on the first electrode;
• and
• performing light exposure on the liquid crystal material with a mask to form a liquid crystal structure comprising the first liquid crystal cell and the second liquid crystal cell, wherein the first liquid crystal cell and the second liquid crystal cell are parallel to each other and disposed obliquely with respect to the first substrate;
• and
• wherein the first liquid crystal cells and the second liquid crystal cells are alternately disposed.