US 11,926,127 B2
Window film for display device and display device including same
Chanjae Ahn, Suwon-si (KR); Sun Jin Song, Seoul (KR); Won Suk Chang, Hwaseong-si (KR); Boreum Jeong, Sejong-si (KR); A Ra Jo, Suwon-si (KR); Kyeong-Sik Ju, Suwon-si (KR); and Sungwon Choi, Hwaseong-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do (KR); and SAMSUNG SDI CO., LTD., Gyeonggi-Do (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR); and SAMSUNG SDI CO., LTD., Yongin-si (KR)
Filed on Jul. 15, 2020, as Appl. No. 16/929,382.
Claims priority of application No. 10-2019-0085348 (KR), filed on Jul. 15, 2019.
Prior Publication US 2021/0016552 A1, Jan. 21, 2021
Int. Cl. B32B 27/34 (2006.01); B32B 27/08 (2006.01); B32B 27/28 (2006.01); C08G 69/26 (2006.01); C08G 69/42 (2006.01); C08J 7/04 (2020.01); C08J 7/046 (2020.01); G02B 1/14 (2015.01)
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
OG exemplary drawing
 
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:

OG Complex Work Unit Chemistry
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.