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美国专利由显示屏相对的两侧对多聚物分散液晶(PDLC)进行边缘照明,制造出高对比度显示器。光由 PDLC屏前面的无源区散射,在这个区域内,液晶和多聚物材料的折射指数失配。对于直视透射型显示器,屏的背面被涂黑。这样,PCLC的有源区就可以透射边缘照明光和环境光。这个区域是黑色的,在这个区域内液晶和多聚物的折射指数是匹配的。对于与投影光
U.S. patents edge-polymerize polymer dispersed liquid crystals (PDLCs) from opposite sides of the display to create high-contrast displays. Light is scattered by the passive area in front of the PDLC screen, where the index of refraction of the liquid crystal and the polymer material is mismatched. For direct-view transmissive displays, the back of the screen is blackened. In this way, the active area of the PCLC can transmit edge illumination and ambient light. This area is black and the refractive index of the liquid crystal and polymer in this area is matched. For with projection light