Liquid crystal display panel

A liquid crystal display panel, comprising:

• a color filter substrate provided with a plurality of light path openings;
• a driving substrate arranged opposite to the color filter substrate;
• a liquid crystal layer located between the color filter substrate and the driving substrate;
• and
• a plurality of photosensitive sensor units formed on a surface of a side of the driving substrate close to the liquid crystal layer or formed inside the driving substrate;
• wherein a plurality of retaining wall structures are provided in the liquid crystal layer, the retaining wall structures are hollow, a top and a bottom of each of the retaining wall structures are both open, a top opening of each of the retaining wall structures is aligned with at least one of the light path openings, and a bottom opening of each of the retaining wall structures is aligned with one of the photosensitive sensor units;
• and
• wherein a material of the retaining wall structures is a black light-absorbing material, hollow portions of the retaining wall structures are filled with a transparent material, and a height of the retaining wall structures is equal to a thickness of the liquid crystal layer.