A COLOR SEPARATION OPTICAL PLATE FOR USE WITH DISPLAY AND SENSOR PANELS

摘要

A color separation optical plate (12) is superimposed onto an image forming or image receiving electro-optical transducer panel (14). The color separation plate separates incident white light into its red/green/blue (RGB) components and guides each component through the appropriate sub-pixel (dot) of the panel. The color separation plate utilizes a microprism array of direct vision microprisms (21, 22, 23) each having a combination of refractive and gradient index optics to concentrate the light onto the appropriate sub-pixel dots and to separate the colors. This combination has the theoretical capability of increasing color LCD panel transmissivity by as much as a factor of six.