Polarizer having high durability and method of fabricating the same
The present disclosure provides a polarizer having a transmittance of about 45% or more and a transmittance distribution of about 0.3% or less.
1. A polarizer having a transmittance of about 45% or more and a transmittance distribution of about 0.3% or less.
2. The polarizer as claimed in claim 1 , wherein the polarizer has a Poisson's ratio of about 0.1 or less.
3. The polarizer as claimed in claim 1 , wherein the polarizer has a Poisson's ratio ranging from about 0.05 to about 0.10.
4. The polarizer as claimed in claim 1 , wherein the polarizer has a Young's modulus of about 90 MPa or more.
5. The polarizer as claimed in claim 1 , wherein the transmittance and transmittance distribution of the polarizer are measured at wavelengths of about 350 nm to about 750 nm.
6. A polarizing plate comprising a protective film stacked on at least one side of the polarizer as claimed in claim 1 .
7. A polarizing plate comprising a protective film stacked on at least one side of the polarizer as claimed in claim 2 .
8. A polarizing plate comprising a protective film stacked on at least one side of the polarizer as claimed in claim 3 .
9. A polarizing plate comprising a protective film stacked on at least one side of the polarizer as claimed in claim 4 .
10. A method of manufacturing a polarizer, the method comprising:
swelling, dyeing, cleaning, and stretching a polyvinyl alcohol film to form a polarizer, wherein:
the polyvinyl alcohol film is stretched at a stretch ratio of about 0.35 to about 1 during the cleaning, and
a ratio of the stretch ratio during the cleaning to a stretch ratio immediately after the cleaning ranges from about 1:1.05 to 1:1.5.