Patent ID: 7639325

Claim:
A transflective flat panel display (FPD) device comprising: a liquid crystal layer; and a transflective layer, the transflective layer comprising: a plurality of reflective domains configured for reflecting ambient light toward the liquid crystal layer, each of the reflective domains having a plurality of reflective nano-particles associated therewith, the reflective domains being configured in a given pattern; and a plurality of transmissive domains configured for allowing backlight to pass therethrough toward the liquid crystal layer; wherein sizes of the nano-particles are discretely distributed, and the distribution has three peaks respectively corresponding to a first range, a second range, and a third range, wherein the reflective nano-particles with sizes in the first range are adapted for reflecting light of a red light band, the reflective nano-particles with sizes in the second range are adapted for reflecting light of a green light band, and the reflective nano-particles with sizes in the third range are adapted for reflecting light of a blue light band.