US 12,279,474 B2
OLED panel lower part protection film, and organic light-emitting display apparatus comprising same
Youngseo Choi, Yongin-si (KR); Sangshin Kim, Asan-si (KR); Jinhyuk Kim, Asan-si (KR); Youngdon Park, Asan-si (KR); Youngbin Baek, Asan-si (KR); and Sangwoo Lee, Asan-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Mar. 22, 2024, as Appl. No. 18/614,499.
Application 18/614,499 is a division of application No. 17/408,351, filed on Aug. 20, 2021, granted, now 11,963,383.
Application 17/408,351 is a division of application No. 16/478,838, granted, now 11,108,018, issued on Aug. 31, 2021, previously published as PCT/KR2018/000822, filed on Jan. 18, 2018.
Claims priority of application No. 10-2017-0008519 (KR), filed on Jan. 18, 2017.
Prior Publication US 2024/0244879 A1, Jul. 18, 2024
Int. Cl. H10K 50/844 (2023.01); B32B 7/06 (2019.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); B32B 27/36 (2006.01); B32B 37/02 (2006.01); B32B 37/12 (2006.01); B32B 37/18 (2006.01); B32B 38/10 (2006.01); C09J 5/02 (2006.01); C09J 7/25 (2018.01); C09J 7/30 (2018.01); C09J 9/02 (2006.01); C09J 11/06 (2006.01); H10K 85/10 (2023.01); H10K 85/60 (2023.01); C08K 5/3432 (2006.01)
CPC H10K 50/844 (2023.02) [B32B 7/06 (2013.01); B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/36 (2013.01); B32B 37/02 (2013.01); B32B 37/12 (2013.01); B32B 37/182 (2013.01); B32B 38/10 (2013.01); C09J 5/02 (2013.01); C09J 7/255 (2018.01); C09J 7/30 (2018.01); C09J 9/02 (2013.01); C09J 11/06 (2013.01); H10K 85/141 (2023.02); H10K 85/654 (2023.02); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2367/00 (2013.01); B32B 2405/00 (2013.01); B32B 2457/206 (2013.01); C08K 5/3432 (2013.01); C08K 2201/017 (2013.01); C09J 2203/326 (2013.01); C09J 2301/408 (2020.08); C09J 2433/00 (2013.01); C09J 2467/006 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method of applying a lower part protection film for an OLED panel, the method comprising:
exfoliating a liner film from the lower part protection film to provide a base-carrier film;
attaching, to the OLED panel, the base-carrier film, from which the liner film is exfoliated; and
exfoliating a carrier film from the base-carrier film attached to the OLED panel,
wherein the lower part protection film comprises:
the base-carrier film comprising a base film comprising a first adhesive layer on an upper surface of a first base material and a carrier film comprising a second adhesive layer adhered to a lower surface of the first base material and a second base material adhered to a lower surface of the second adhesive layer; and
the liner film adhered utilizing the first adhesive layer,
wherein the lower part protection film satisfies both Condition (1) and Condition (2) below:
(1) a reflectance of the lower part protection film is 12 to 18% at a wavelength of 400 to 700 nm; and
(2) a reflectance ratio between a reflectance of the liner film and a reflectance of the base-carrier film at the wavelength of 400 nm to 700 nm is 1:0.3 to 3.0.