P‐7: New TACless Wide‐View Film for TFT‐LCDs

Abstract

We have developed a new TACless Wide-View film, a successor of the current Wide-View film, which makes the polarizer thinner and allows higher light transmittance, by eliminating one of the TAC films and directly attaching the optical compensation layers to the PVA layer of the polarizer. The new TACless Wide-View film gives the same optical effect on the TN mode TFT-LCD as the predecessor.

Universal off-axis light transmission properties of the bright state in perfectly compensated liquid crystal devices

“…They have exactly the same angular distribution as the directors of the liquid crystal layer of the dark state and their extraordinary, ordinary refractive indices are the same as the ordinary, extraordinary indices of the liquid crystal, respectively. This is in accordance with Mori's argument 4,5 that the effect of each layer of a positive birefringence material in a liquid crystal device can be optically compensated by a layer of negative birefringence materials with the same optic axis orientation. Other methods, for example, using positive O plates 6,7 or biaxial material 8 can be used for optical compensation of the dark state.…”

Fast flexoelectric switching in a cholesteric liquid crystal cell with surface-localized polymer network

“…While the issue of viewing angle of these display technologies has been tamed by using multiple-domain, fringefield or lateral-field approaches [3][4][5] and polymer retarders [6], the major challenge for these technologies resides in the response time for a perfect motion picture. The rising time of a nematic cell is related to the magnitude of the applied voltage and the falling time is related to the viscosity of LC.…”