Ultra-wide-view patterned polarizer type stereoscopic LCDs using patterned alignment

The proposed patterned polarizer rather than the conventional +/-lambda/4 polarizer can further reduce the crosstalk through its corresponding glass for stereoscopic LCDs and can be fabricated by using the same patterned alignment technique. The patterned polarizer comprises a linear polarizer, a patterned retarder and a biaxial film. The maximum crosstalk ratio of the optimal design is reduced from 0.1 (for the conventional circular polarizer using +/-lambda/4 retarder and positive C film) to 0.016 (for the proposed structure) at +/-60 degrees viewing cone for the light obliquely passing through both the glasses and the LCD at the same angle. As to the light normally passing through both the LCD and glasses, the maximum crosstalk ratio can be reduced from 0.0167 to 0.0126 with rotated glasses. (C) 2012 Optical Society of America