In a semi-transmissive liquid crystal display device provided with a liquid crystal panel DP and a backlight BL, black spacers and transparent spacers are mixed and provided in a space between two opposing transparent substrates 4a and 4b, and let r be a radius of the spacers and S be a dimension of...http://www.google.com.tw/patents/US7855775?utm_source=gb-gplus-share專利 US7855775 - Liquid crystal display device
