A display system that does not require viewers to wear special glasses to see 3D images is useful technology. Conventional 2-views lenticular and parallax-barrier display systems have disadvantages such that horizontal resolution is reduced by half because each eye only sees half the pixels. We describe a method to generate orthogonal polarized parallax images and a thin stereoscopic 3D display with a polarized parallax barrier. The advantage of the polarized parallax barrier is that the resolution of presented parallax images is much greater than that possible with conventional displays. This compact display has liquid crystal display(LCD) panels and/or Electoro Luminescence(EL) devices to present stereo views and control polarization. It has twice the 3D image resolution, because the image plane can multiplex images with horizontal and vertical polarization to display stereo views.