Patent ID: 9690020
Date: 2017-06-27
CPC Classifications: G02B

Claim:
1. An optical film for polarizing plate, comprising: an ultraviolet light absorbent having a first peak with a maximum absorption coefficient of 0.07 to 0.10 phr an acrylic resin; and a hindered amine light stabilizer (HALS), wherein the ultraviolet light absorbent is represented by Chemical Formula 2, wherein the hindered amine light stabilizer (HALS) includes one structure selected from the group consisting of structures represented by Chemical Formulae 6, 7 and 9 to 18: in Chemical Formula 2, R wherein, in Chemical Formula 6, b is an integer of 3 to 10, R wherein, in Chemical Formula 7, R and R 19 and R 20 are each independently a linear or a branched C1-8 alkylene; wherein, in Chemical Formula 9, d is an integer of 3 to 6, R wherein, in Chemical Formula 10, e is an integer of 3 to 8, R wherein, in Chemical Formula 11, f is an integer of 9 to 18, R wherein, in Chemical Formula 12, g is an integer of 3 to 8, R wherein, in Chemical Formula 13, h is an integer of 3 to 8, R and R wherein, in Chemical Formula 14, i is an integer of 3 to 8, R wherein, in Chemical Formula 15, j is an integer of 3 to 8, R wherein, in Chemical Formula 16, k is an integer of 6 to 16, R wherein, in Chemical Formula 17, l is an integer of 4 to 13, R wherein, in Chemical Formula 18, m is an integer of 4 to 12, R