Optical film, polarizing plate and liquid crystal display

Details Optical film, polarizing plate and liquid crystal display Optical film, polarizing plate and liquid crystal display

2011-01-25

2011-01-25

Font, Frank G (Department: 2872)

Optical: systems and elements

Polarization without modulation

Polarization by optical activity

C359S494010, C359S506000

Reexamination Certificate

active

07876502

ABSTRACT:
An optical film is provided and includes a transparent polymer film. The optical film has at least an A1 value defined by Re (450)/Re (550) of from 0.10 to 0.95 and A2 value defined by Re (650)/Re (550) of from 1.01 to 1.50. Re (λ) represents the retardation value of the film with respect to light having a wavelength of λ nm; and Rth (λ) is the retardation value in the thickness direction of film with respect to light having a wavelength of λ nm.

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