CPC B32B 27/34 (2013.01) [B32B 27/08 (2013.01); B32B 27/283 (2013.01); C08G 69/265 (2013.01); C08G 69/42 (2013.01); C08J 7/0427 (2020.01); C08J 7/046 (2020.01); G02B 1/14 (2015.01); B32B 2307/412 (2013.01); B32B 2307/536 (2013.01); B32B 2457/20 (2013.01); C08J 2377/06 (2013.01); C08J 2483/04 (2013.01)] | 20 Claims |
1. A window film for a display device, comprising
a light transmitting substrate comprising a polyamide comprising a structural unit represented by Chemical Formula 1 and a structural unit represented by Chemical Formula 2 and a hard coating layer laminated on one surface of the light transmitting substrate:
wherein, in Chemical Formula 1 and Chemical Formula 2,
A1 and A2 are each independently a C4 to C10 cycloalkylene group, or a group in which two C4 to C10 cycloalkylene groups are linked by a single bond,
B of Chemical Formula 1 is a group comprising two phenylene groups that are linked by a single bond and each of the two phenylene groups is substituted with an electron withdrawing group, and
D of Chemical Formula 2 is a group in which two or more substituted or unsubstituted phenylene groups are linked by —O—, —S—, —C(═O)—, —(CF2)q—, —C(CnH2n+1)2—, —C(CnF2n+1)2—, (wherein 1≤n≤10 and 1≤q≤10), or a combination thereof;
wherein the structural unit represented by Chemical Formula 1 is present in an amount of greater than or equal to 50 mol % and less than or equal to 75 mol % based on a total mole number of the structural unit represented by Chemical Formula 1 and the structural unit represented by Chemical Formula 2.
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