Dye type polarizing plate

Details Dye type polarizing plate Dye type polarizing plate

2006-09-19

2006-09-19

Pyon, Harold (Department: 1772)

Stock material or miscellaneous articles

Liquid crystal optical display having layer of specified...

With viewing layer of specified composition

C428S001540, C349S080000, C349S097000, C349S165000, C359S491010, C534S577000, C534S683000, C534S685000, C008S489000

Reexamination Certificate

active

07108897

ABSTRACT:
This invention relates to a polyvinyl alcohol type polarizing film or plate which comprises a water-soluble dye having the formula (1) in a free acid form or a copper complex salt thereof. The said polarizing plate has excellent polarizing performance capability and durability, and is suitably used for the green channel of a liquid crystal projector when B in formula (1) is a benzoylamino group and the water-soluble dye has a wave length for maximum absorption (λmax) of 520 nm or more and less than 580 nm

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