abstract |
The present invention relates to a polarizer, more specifically to a polarizer which has a weight ratio of elemental iodine to elemental potassium (elemental iodine/elemental potassium) of from 0.12 to 0.18 and exhibits extremely excellent degree of polarization and heat resistance at the same time by containing from 3% by weight to 4.5% by weight of elemental boron. |