Polarizer, method for producing the same, polarizing plate, optical film and image display
A polarizer of the invention comprises a polyvinyl alcohol-based film which is at least dyed with at least iodine and uniaxially stretched, having a single transmittance of 43% or more, a polarizing efficiency of 99.9% or more, and a dichroic ratio of 30 or more, wherein the dichroic ratio is calcul...
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Main Author | |
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Format | Patent |
Language | English |
Published |
30.08.2006
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Subjects | |
Online Access | Get full text |
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Summary: | A polarizer of the invention comprises a polyvinyl alcohol-based film which is at least dyed with at least iodine and uniaxially stretched, having a single transmittance of 43% or more, a polarizing efficiency of 99.9% or more, and a dichroic ratio of 30 or more, wherein the dichroic ratio is calculated from a parallel transmittance (Tp) and a crossed transmittance (Tc) at a wavelength of 440 nm, and have good hue. |
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Bibliography: | Application Number: CN200480009581 |