PROJECTION DISPLAY DEVICE

摘要

A projection display device is provided with a liquid crystal panel; a first polarization layer arranged on an optical path of light entering the liquid crystal panel; a second polarization layer and a third polarization layer arranged on an optical path of light outputted from the liquid crystal panel; and first to third compensation layers arranged between the first polarization layer and the second polarization layer. The transmitting axis of the first polarization layer and the transmission axis of the second polarization layer orthogonally intersect with each other. The transmission axis of the second polarization layer and the transmission axis of the third polarization layer are parallel to each other. The first compensation layer compensates a phase difference generated due to pre-tilt angle on the entering side of the liquid crystal panel. The second compensating layer compensates a phase difference generated due to a pre-tilt angle on the outgoing side of the liquid crystal panel. The third compensation layer compensates a phase difference generated due to deviation between the polarization axis of the light entering the third polarization layer and the transmission axis of the third polarization layer.