Patent ID: 8054242

Claim:
A liquid crystal display device, comprising: a main cell comprising: a first substrate having a gate line, a data line, a thin film transistor and a pixel electrode; a second substrate facing the first substrate and having a black matrix and a color filter layer, wherein one of the first and second substrates has a common electrode; and a first liquid crystal layer between the first and second substrates, wherein first and second image datas are supplied to the main cell, and wherein the main cell simultaneously displays first and second images; and a switching cell over the main cell, the switching cell comprising: a third substrate having a plurality of first electrodes; a fourth substrates; facing the third substrate and having a second electrode; and a second liquid crystal layer between the third and fourth substrates, wherein the switching cell includes a transmissive area and a blocking area, and wherein the switching cell forms the transmissive area and the blocking area by selectively applying a voltage to the plurality of first electrodes so that the first and second images are alternately arranged with each other and have main viewing angles different from each other, wherein the second electrode is one of a plate shape covering an entire surface of the fourth substrate and a bar shape corresponding to the plurality of first electrodes, wherein the size of the blocking area is selectively adjusted by a number of the plurality of first electrodes to which the same voltage is applied, and wherein main viewing angles of the first and second images are adjusted according to a width of the blocking area.