The present disclosure relates to methods and display systems for concurrently displaying two complementary images. Collimated light comprising interlaced series of left and right image rows are received, at angles that alternate over time, on an intensity modulation matrix. The collimated light is transmitted to a patterned retarder capable of applying spatially alternating polarizations to successive rows. The collimated light is further transmitted to a display layer. The angles at which collimated light is received on the intensity modulation matrix and distances between display system components are such that odd lines of the display layer alternate in time between lines of a first image and lines of a second image while even lines of the display layer alternate between lines of the second image and lines of the first image. The first and second images may be discriminated by viewers using polarized glasses.