A liquid crystal display panel includes a liquid crystal display panel for displaying an image, and a viewing angle adjustment layer on the liquid crystal display panel. The viewing angle adjustment layer includes: a lower cutoff polarizing plate; a lower cutoff electrode on the lower cutoff polarizing plate; an upper cutoff polarizing plate facing the lower cutoff polarizing plate; an upper cutoff electrode on the upper cutoff polarizing plate; and a liquid crystal capsule layer between the lower cutoff electrode and the upper cutoff electrode. The liquid crystal capsule layer includes a plurality of liquid crystal capsules. A diameter of the liquid crystal capsules is between 50 nm and a shortest wavelength of visible light.