Liquid crystal display device having variable viewing angle

A liquid crystal display device having variable viewing angles, comprising:

• a first liquid crystal cell having first and second substrates spaced apart from and facing each other, a pixel electrode on an inner surface of the first substrate, a common electrode on an inner surface of the second substrate, and a first liquid crystal layer interposed between the pixel electrode and the common electrode;
• a second liquid crystal cell on the first liquid crystal cell, the second liquid crystal cell having third and fourth substrates spaced apart from and facing each other, a first alignment layer on an inner surface of the third substrate, a second alignment layer on an inner surface of the fourth substrate, and a second liquid crystal layer interposed between the first and second alignment layers, wherein the first and second alignment layers are arranged to have holographic patterns;
• and
• a switching part for selectively applying electric field to the second liquid crystal layer.