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US 2016/0243774 A1Published application
Stretched laminate, method of manufacturing thin polarizer, thin polarizer manufactured by the method, and polarizing plate including the thin polarizer
AssigneeLG Chem, Ltd.
InventorsSung-Hyun NAM, Jong-Hyun JUNG, Kyun-II RAH, Hye-Min YU
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Abstract
There is provided a stretched laminate having superior optical characteristics, easily separable from a base film, and usable for manufacturing a thin polarizer. In addition, there are provided a method of manufacturing a thin polarizer having superior optical characteristics by using the stretched laminate, a thin polarizer manufactured by the method, and a polarizing plate including the thin polarizer.
Claims16
A stretched laminate formed by stretching a laminate comprising:
- a non-stretched polymer film;
- and a non-stretched polyvinyl alcohol-based film attached to at least one surface of the polymer film,
- wherein both the polymer film and the polyvinyl alcohol-based film satisfy Formula 1 below in case of
- x
- =
- film
-
-
- thickness
-
-
- after
-
-
- stretching
- film
-
-
- thickness
-
-
- before
-
-
- stretching
-
-
- and
-
-
- y
- =
- film
-
-
- width
-
-
- after
-
-
- stretching
- film
-
-
- width
-
-
- before
-
-
- stretching
- :
- y≦−0.175x+0.675 [Formula 1]
- where 0.16≦x<1, and 0<y<1.
52 more elements
A method of manufacturing a thin polarizer, the method comprising:
- forming a laminate by attaching a non-stretched polyvinyl alcohol-based film to at least one surface of a non-stretched polymer film;
- and
- stretching the laminate such that both the polymer film and the polyvinyl alcohol-based film satisfy Formula 1 below in case of below in case of
- x
- =
- film
-
-
- thickness
-
-
- after
-
-
- stretching
- film
-
-
- thickness
-
-
- before
-
-
- stretching
-
-
- and
-
-
- y
- =
- film
-
-
- width
-
-
- after
-
-
- stretching
- film
-
-
- width
-
-
- before
-
-
- stretching
- :
- y≦−0.175x+0.675 [Formula 1]
- where 0.16≦x<1, and 0<y<1.
52 more elements
(canceled)
(canceled)
(canceled)
Dependencies are inferred from the claim text.