POLARIZING FILM CIRCULAR POLARIZING PLATE AND ORGANIC EL IMAGE DISPLAY DEVICE USING THE SAME

摘要

[PROBLEMS] To provide a polarizing film having a thin film and high polarization performance, which is useful for a display device member. [MEANS FOR SOLVING PROBLEMS] As a polarizing film formed from a composition containing two or more dichroic dyes different in maximum absorption wavelength, Directional orientation direction, The following formulas (I) to (V) 0.3? A450 / A550 0.8 (I) 0.3? A450 / A650 1.0 (II) 0.5? A450? 2 (III) 1? A550? 3 (IV) 1? A? 650? 3 (V) (Wherein, A450 is the absorbance of the polarized light parallel to the alignment direction at a wavelength of 450 nm, A550 is the absorbance of the polarized light parallel to the alignment direction at a wavelength of 550 nm, And A650 represents the absorbance of the polarized light parallel to the alignment direction at a wavelength of 650 nm. Of the polarizing film.