Retardation compensation plate, retardation compensator,...

Details Retardation compensation plate, retardation compensator,... Retardation compensation plate, retardation compensator,...

2011-06-07

2011-06-07

Healy, Brian M (Department: 2883)

Liquid crystal cells, elements and systems

Liquid crystal system

Projector including liquid crystal cell

C349S119000, C359S490020

Reexamination Certificate

active

07956938

ABSTRACT:
A retardation compensation plate having a birefringent property for compensating residual retardation of a liquid crystal panel includes: a combined unit formed of an optical multi-layered film composed of a plurality of layers having different refractive indices stacked in a regular order and a polymer film. In the retardation compensation plate, the retardation compensation plate and the liquid crystal panel have in-plane retardations that satisfy the relationship: 1<R0c/R0p≦10, where R0cis an in-plane retardation of the retardation compensation plate and R0pis an in-plane retardation of the liquid crystal panel.

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