3D display with active parallax barrier using the monochromatic LC panel of specifications same as the image display panel

摘要

In the stereoscopic 3D display using the parallax barrier, the active barrier method can expand the viewing area if thebarrier pattern optimizes corresponding to the position of the observer by eye tracking. However, requiring not only theLC display panel but also the specially shaped LC panel for the active barrier, this system should be very expensive. Wepropose using the active barrier which is a monochromatic panel of the same pixel shape as the image display panel. In theproposed method, it is easy to manufacture panels for the active barrier, and the 3D display provide the wide viewing areaand high quality 3D images for observers. When the active barrier is a monochromatic panel having the same pixel shapeas the image display panel, basically the barrier pitch cannot realize the ideal value. Thus, the observer cannot observe thestereoscopic image in the full screen. In order to realize stereoscopic observation, we apply the cycle pitch composing thestereoscopic image. The cycle pitch composing the stereoscopic image is the method to bring the pitch constituting theL/R image closer to the ideal value by periodically increasing the number of dots constituting the L/R image. To confirmthe effectiveness of the proposed method, the crosstalk of the prototypes using film barriers were measured. Crosstalk wasless than or equal to 10% at the viewing distance of 421 mm to 1238 mm. That crosstalk can be reduced regardless ofobservation distance was confirmed.