Abstract
We have developed and commercialized Low-retardation TAC Film for protection films of LCD's polarizer, named FUJI FILM 'Z-TAC®'. We used advanced technologies to control TAC film's in-plane birefringence and out-of-plane birefringence. By using these technologies, Re value (in-plane retardation) and Rth value (out-of-plane retardation) of this TAC film are both nearly zero. With this novel optical property of both nearly zero Re and Rth for the first time in the world, this Low-retardation TAC film can reduce the color-shift of LCDs at oblique incidence, for especially IPS mode LCDs. Also, this Low-retardation TAC film can use existing cost-effective roll-to-roll manufacturing process for polarizer.
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