"twisted nematic field effect" . "twisted nematic (TN)" . . "twisted nematic" . . . "Twisted nematic field effect" . "(Twisted Nematic)" . . . "Twisted-nematic" . . "Twisted nematic" . "TN" . "Twisted Nematic (TN)" . "Twisted Nematic" . . . . "Twisted nematic field effect" . . . "liquid crystal" . . "TN panels" . . "TN Film" . . . . "Mauguin regime" . "TN LCD" . . . "twisted structure" .