Patent ID: 8717509

Claim:
A stereoscopic optical device, comprising: a substrate; an alignment film disposed on the substrate, the alignment film comprising at least one first region and at least one second region, wherein the first region of the alignment film has a first pre-tilt effect and the second region of the alignment film has a second pre-tilt effect different from the first pre-tilt effect; and a liquid crystal layer disposed on the alignment film, the liquid crystal layer comprising a plurality of first liquid crystal molecules and a plurality of second liquid crystal molecules, wherein the first liquid crystal molecules correspond to the first region of the alignment film and have a first pre-tilt angle, the second liquid crystal molecules correspond to the second region of the alignment film and have a second pre-tilt angle different from the first pre-tilt angle, the first liquid crystal molecules have a first phase retardation effect and the second liquid crystal molecules have a second phase retardation effect, wherein a fast axis of the first liquid crystal molecules and a fast axis of the second liquid crystal molecules substantially face an identical direction, and a slow axis of the first liquid crystal molecules and a slow axis of the second liquid crystal molecules face an identical direction, and wherein the first phase retardation effect is a positive three-fourths (+¾) wavelength phase retardation effect and the second phase retardation effect is a positive quarter (+¼) wavelength phase retardation effect; the first phase retardation effect is a negative quarter (−¼) wavelength phase retardation effect and the second phase retardation effect is a negative three-fourths (−¾) wavelength phase retardation effect; or the first phase retardation effect is a positive half (+½) wavelength phase retardation effect or a negative half wavelength phase retardation effect, and the second phase retardation effect is a zero-order phase retardation effect.