Stereoscopic image separation can be improved with parallax barriers consisting of single color filter strips. A novel spatially multiplexed autostereoscopic 3D display design with wavelengthselective color filters is presented here. In comparison to common parallax barriers the resolution and brightness are enhanced by factor two. High quality image separation can be provided by using narrow-band RGB-backlights and bandpass barrier-filter. The newly introduced arrangement is realized as a slanted color stripe structure based on a regular RGB-display panel. In this paper we discuss the static color filter design and the influence of the barrier gaps on the uniformity of light emission.