Double Super Twisted Nematic Liquid Crystal Display Device and Phase Difference Compensation Method

摘要

The present invention relates to a double super twisted nematic liquid crystal display device and a method of compensating for a phase difference, comprising a first substrate, a first electrode layer, a first alignment layer, a first liquid crystal layer, a second alignment layer, A third substrate provided on the second substrate, and a third alignment film, a second liquid crystal layer, a fourth alignment film, a fourth substrate, and a fourth substrate sequentially on the third substrate, a display cell liquid crystal panel having a second substrate, A pretilt angle at which the liquid crystal molecules of the first liquid crystal layer are arranged by the first and second alignment layers in the compensating cell liquid crystal panel having the stacked structure, and a pretilt angle at which the liquid crystal molecules of the second liquid crystal layer are aligned by the third and fourth alignment layers. Tilt angles in which molecules are arranged to be different from each other are different from each other in compositional materials of the first and second alignment films and the third and fourth alignment films so that the first liquid crystal layer and the second liquid crystal layer Above the transmitted light passing through the layer The rewards. Therefore, it is possible to obtain a display screen in which fabrication is easy, process reproducibility is excellent, and the level boundary of black and white is clear due to contrast and color removal.