Light-transmitting privacy protection device

A light-transmitting privacy protection device, comprising:

• a light-transmitting layer;
• a filling layer disposed on one surface of the light-transmitting layer;
• and
• a plurality of privacy protection gratings disposed within the filling layer and spaced apart along a first direction, wherein each privacy protection grating comprises:
• a plurality of first light-blocking structures spaced apart along a second direction to form a first array;
• and
• a plurality of second light-blocking structures spaced apart along the second direction and a third direction to form a second array;
• wherein the first direction, the second direction, and the third direction are orthogonal to each other;
• and the complete projection of each first light-blocking structure in each row of the privacy protection gratings on the surface overlaps with the partial projection of the plurality of second light-blocking structures in each row of the privacy protection gratings on the surface.