A front light includes a light source, a light guide for receiving light from the light source through an end surface of the light guide and outputting the light through a first large surface which is substantially perpendicular to the end surface, and a polarization selecting section for selectively...http://www.google.com/patents/US6340999?utm_source=gb-gplus-sharePatent US6340999 - Front light, and reflective type LCD including same
