Polarizing film, polarizing plate, method of preparing the polarizing film and organic light-emitting apparatus including the polarizing plate

1. A polarizing film, comprising

a polyvinyl alcohol-based resin film on which an iodine-first component composite particle is absorbed and oriented,

wherein a first component included in the iodine-first component composite particle prevents iodine having high sublimation characteristics from being sublimated and prevents a molecular structure of the iodine of the iodine-first component composite particle from being destroyed, and

wherein the iodine-first component composite particle is formed of a core formed of iodine and the first component existing on a surface of the core.

2. The polarizing film of claim 1 , wherein the first component is a shell covering a surface of the core.

3. The polarizing film of claim 2 , wherein a thickness of the shell is from about 10 nm to about 400 nm.

4. The polarizing film of claim 1 , wherein the first component is selected from the group consisting of a nanotube, a dendrimer, a quantum dot, a magnetic nano-particle, gold, cadmium selenide (CdSe), and zinc oxide (ZnO).

5. The polarizing film of claim 1 , wherein a weight ratio of the iodine in the iodine-first component composite particle and the first component in the iodine-first component composite particle is from about 1:1 to about 1:1.5.

6. A polarizing plate including a polarizing film said polarizing film, comprising:

a polyvinyl alcohol-based resin film on which an iodine-first component composite particle is absorbed and oriented,

wherein a first component included in the iodine-first component composite particle prevents iodine having high sublimation characteristics from being sublimated and prevents a molecular structure of the iodine of the iodine-first component composite particle from being destroyed, and

wherein the iodine-first component composite particle is formed of a core formed of iodine and the first component existing on a surface of the core.

7. The polarizing plate of claim 6 , wherein a passivation layer is formed on one or both sides of the polarizing film.

8. The polarizing plate of claim 7 , wherein the passivation layer is selected from the group consisting of a cellulous-based film, an acryl-based film, a polyester-based film, a polyarylate-based film, a polyethersulfone-based film, a polyolefin-based film, and a acetate-based film.

9. A method of preparing a polarizing film, comprising:

uniaxially drawing a polyvinyl alcohol-based resin film; and

contacting the polyvinyl alcohol-based resin film with a mixture comprising an iodine-first component composite particle,

wherein a first component included in the iodine-first component composite particle prevents iodine having high sublimation characteristics from being sublimated and prevents a molecular structure of the iodine of the iodine-first component composite particle from being destroyed, and

wherein the iodine-first component composite particle is formed of a core formed of iodine and the first component existing on a surface of the core.

10. The method of claim 9 , wherein the iodine-first component composite particle is prepared by a chemical vapor deposition (CVD) method or a liquid phase synthesis method.

11. A method of preparing a polarizing film, comprising: melting and pressing a mixture comprising a polyvinyl alcohol-based resin, an iodine-first component composite particle, and a solvent,

wherein a first component included in the iodine-first component composite particle prevents iodine having high sublimation characteristics from being sublimated and prevents a molecular structure of the iodine of the iodine-first component composite particle from being destroyed, and

wherein the iodine-first component composite particle is formed of a core formed of iodine and the first component existing on a surface of the core.

12. The method of claim 11 , wherein the iodine-first component particle composite is prepared by chemical vapor deposition (CVD) method or a liquid phase syntheses method.

13. An organic light-emitting apparatus comprising:

an organic light-emitting device; and

a polarizing plate, comprising:

a polyvinyl alcohol-based resin film on which an iodine-first component composite particle is absorbed and oriented,

wherein a first component included in the iodine-first component composite particle prevents iodine having high sublimation characteristics from being sublimated and prevents a molecular structure of the iodine of the iodine-first component composite particle from being destroyed, and

wherein the iodine-first component composite particle is formed of a core formed of iodine and the first component existing on a surface of the core.