A liquid crystal panel includes a first substrate, a second substrate, and a liquid crystal layer between the first substrate and the second substrate. The first substrate includes a display area having a black matrix and a peripheral area surrounding the display area. At least one opening is arranged on the black matrix of the peripheral area. The second substrate includes at least one masking unit arranged corresponding to the openings. In addition, a liquid crystal device including the above liquid crystal panel is also disclosed. By arranging the openings on the black matrix of the peripheral area of the first substrate, the UV rays are prevented from being absorbed by the black matrix. As such, residue of the reactive monomer left within the liquid crystal layer is decreased and display performance is enhanced. Also, the light leakage occurring due to the openings is avoided.