Patent ID: 11926127
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Surface technology, coating (Chemistry)
Classification: CPC B  C  G | IPC B  C  G

Claim 0:
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.