Disclosed are a liquid crystal display panel and a liquid crystal display device. The liquid crystal display panel includes: a liquid crystal display structure, the liquid crystal display structure including: a plurality of first gate lines extending in a row direction, a plurality of first data lines extending in a column direction, and a plurality of sub-pixel units defined by the plurality of first gate lines and the plurality of first data lines; and a liquid crystal light control structure located on a light incident side of the liquid crystal display structure, the liquid crystal light control structure including: a plurality of second data lines, an orthographic projection of at least one second data line on the liquid crystal display structure overlapping the plurality of sub-pixel units.