Polarization light splitting film, backlight system and liquid crystal display having particular diffusion layer under optical rotation selection layer
February 17, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesPolarizer device Cholesteric polarizer for liquid crystal display and overhead projector LCD comprising a light separating element including a cholesteric liquid crystal sheet Illumination system and display device including such a system Illuminator with polarization separating anisotropic layer between light guide and reflector Illumination system and display device Optical polarization device and projection system of liquid crystal valve type utilizing such a device Apparatus for increasing a polarization component, light guide unit, liquid crystal display and polarization method Planar polarizer for LCD projectors High efficiency polarizing converter InventorsAssigneeApplicationNo. 024983 filed on 02/17/1998US Classes:349/96, Polarizer349/9, Having light separated into S and P polarization349/98CircularExaminersPrimary: Kim, Robert H.Assistant: Qi, Mike Attorney, Agent or FirmForeign Patent References
International ClassG02F 001/133.5AbstractA polarization light splitting film having a light receiving side and a light transmitting side. The polarization light splitting film includes an optical rotation selection layer at the light receiving side for reflecting one of right and left circularly polarized components of a light beam that is incident on the light receiving side and for transmitting the other one of the right and left circular polarization components of the light beam, and a quarter-wave layer laminated over the optical rotation selection layer at the light transmitting side. | |
