Abstract

Land showed in 1959 that two-channel red-white color projections can produce object color perceptions of many hues. We now show that a liquid crystal implementation of the Land technique is possible, with a lower cost than conventional color liquid crystal displays.¹ Also, if an opponent color method is used for the two-channel display,² based on chromatic opponent spectra known to be optimal for color information encoding from primate physiological studies,² an even greater range of colors than with the Land method is seen by all observers tested.

© 1989 Optical Society of America