A Full-Color Direct-View TFT-LCD with a Polymer-Dispersed Structure.

We propose a direct-view TFT-LCD with a wide viewing-angle which uses a polymerdispersed liquid-crystal panel and a pair of polarizers. We call this device a polymer-dispersed LCD with crossed Nicols (PDN). The PDN allows panels to be made with low scattering levels .This suggests the use of fluorinated liquid crystals (F-LC) that show a high voltage-holding ratio in TN-LCDs . We found that F-LCs show good solubility with resins having low solubility parameters . A voltage-holding ratio of over 98% is shown, which is almost equal to the value for TN-LCD . The vertical viewing range exceeds 60, with a contrast ratio of over 5 and no image reversal. The range is almost three times the TN-LCD