We present a method for designing spectral interference filters optimized for different kinds of projectors for three-dimensional (3-D) projection systems. Among the parameters considered, the color balance, the transmission efficiency, and the filter isolation are critical and should be optimized in such a way that color correction is no longer necessary. We compare filter design optimizations according to the previous criteria for ultrahigh-performance lamp and light-emitting diode projectors. Finally, we discuss the impact of technical manufacturing constraints on the considered filters with respect to crosstalk and viewing angle tolerance.
Recent upgrades of HDTV into 3DTV resulted in impairments in displaying stereo contents. One of the most critical
flaws is probably crosstalk and the resultant ghosting effect impairing the 3D experience. The purpose of this study is to
identify the primary source of crosstalk, throughout the full image generation and viewing chain, for a selection of 3D
displays: Liquid Crystal Display (LCD) and Plasma Display Panel (PDP) combined with different active glasses
technologies. Time measurements have been carried out on various display panels and shutter glasses technologies. For
each technology, the crosstalk is a complex combination of several factors depending on display panels, shutter glasses
and their synchronization, and ghost busting. The study tried to discriminate the main sources of crosstalk in each case,
and to simulate the effect of various display panels or shutter glasses performance optimizations. Analysis and
conclusions vary depending on the display technology. For LCD, light leakage at the panel level appears the first cause
of crosstalk, and, in a second step, optimization of the shutter glasses. For PDP the use of more adapted shutter glasses
can mitigate color distortion effects.
The recent Bistable Nematic (BiNem<sup>(R)</sup>) LCD technology presents long term bistability, high level passive matrix multiplexing and high optical quality. The BiNem device, based on anchoring breaking, needs specific low anchoring strength materials - alignment layers and liquid crystal mixtures. We present here our approach to develop nematic mixtures with wide enough temperature range and low zenithal anchoring energy.