Patent ID: 11945199
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Surface technology, coating (Chemistry)
Classification: CPC B  G | IPC B

Claim 0:
1. A laminated film comprising
a light transmitting substrate;
a hard coating layer; and
an optical enhancement layer disposed between the light transmitting substrate and the hard coating layer or at a position facing the hard coating layer with the light transmitting substrate therebetween,
wherein the light transmitting substrate comprises a polyimide, a poly(amide-imide) copolymer, or a combination thereof, and
the optical enhancement layer comprises a copolymer comprising a polyimide, wherein the copolymer comprising the polyimide comprises (a) an imide structural unit, and (b) a urethane structural unit, a siloxane structural unit, or a combination thereof, and
wherein a refractive index of the optical enhancement layer has a value between a refractive index of the light transmitting substrate and a refractive index of the hard coating layer.