Polarizer, optical film, and image display

Details Polarizer, optical film, and image display Polarizer, optical film, and image display

2007-07-24

2007-07-24

Dudek, James A. (Department: 2871)

Liquid crystal cells, elements and systems

Liquid crystal optical element

Passive liquid crystal polarizer

C359S494010

Reexamination Certificate

active

10526876

ABSTRACT:
The polarizer of the present invention is a polarizer comprising a film having a structure having a minute domain dispersed in a matrix formed of a translucent thermoplastic resin including an absorption dichroic dye, wherein a transmittance to a linearly polarized light in a transmission direction is 80% or more, a haze value is 10% or less , and a haze value to a linearly polarized light in an absorption direction is 50% or more. The polarizer of the present invention is a dye-based polarizer having a high transmittance and a high polarization degree, capable of suppressing unevenness of transmittance in black display and excellent in reliability in heat resistance.

REFERENCES:
patent: 5825543 (1998-10-01), Ouderkirk et al.
patent: 6141149 (2000-10-01), Carlson et al.
patent: 62-123405 (1987-06-01), None
patent: 8-199015 (1996-08-01), None
patent: 2000-506990 (2000-06-01), None
patent: 2002-207118 (2002-07-01), None

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