Folder type polarizing film for organic light emitting diode

1. A folder type polarizing film for OLEDs, the film comprising:

a polarizer;

a transparent support attached to an upper surface of the polarizer, the transparent support being a cycloolefin polymer film; and

a compensation film attached to a lower surface of the polarizer, the compensation film being a cycloolefin polymer having a phase difference of λ/4 relative to a polarization axis of the polarizer,

wherein:

the polarizing film as a whole has a tensile strength of about 13 to about 20 kgf/mm 2 , and

a folded portion of the polarizing film is not whitened after being folded to a radius of curvature of 5 mm about 1,000 or more times.

2. The film as claimed in claim 1 , wherein the cycloolefin polymer film of the transparent support has a tensile strength of about 5.5 to about 6.5 kgf/mm 2 .

3. The film as claimed in claim 1 , wherein the cycloolefin polymer film of the compensation film has a tensile strength of about 6.5 to about 7.5 kgf/mm 2 .

4. The film as claimed in claim 1 , further comprising:

an adhesive layer between the transparent support and the polarizer; and

an adhesive layer between the polarizer and the compensation film.

5. The film as claimed in claim 1 , further comprising a pressure sensitive adhesive layer on a lower surface of the compensation film.

6. An electronic device, comprising:

an OLED display; and

the film as claimed in claim 1 attached to a surface of the OLED display.

7. The film as claimed in claim 1 , wherein the cycloolefin polymer film of the transparent support has a phase difference of 0.

8. The film as claimed in claim 1 , wherein:

the cycloolefin polymer film of the transparent support has a tensile strength of about 5.5 to about 6.5 kgf/mm 2 ,

the cycloolefin polymer film of the compensation film has a tensile strength of about 6.5 to about 7.5 kgf/mm 2 , and

the cycloolefin polymer film of the transparent support has a phase difference of 0.