We investigated how to achieve desired optical properties of quarter wave retardation films (QWFs) that increase the viewing angle of time-sequential stereoscopic 3D liquid crystal displays (LCDs), such as high luminance, low crosstalk, low color change, and low head-tilt-angle dependency. These display properties were strongly affected by the out-of plane retardation (Rth) of the QWF. We developed QWFs whose in-plane and out-of-plane retardation are independently controllable by adjustment of a polymerized discotic material layer and a triacetate cellulose film, and SD-LCDs with high viewing angle properties were realized using these QWFs whose Rth was nearly zero.
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