US 12,232,408 B2
Substrate for display including plurality of holes and grooves
Duck Hoon Park, Seoul (KR); Hae Sik Kim, Seoul (KR); Woo Young Chang, Seoul (KR); and Jee Heum Paik, Seoul (KR)
Assigned to LG INNOTEK CO., LTD., Seoul (KR)
Appl. No. 17/635,058
Filed by LG INNOTEK CO., LTD., Seoul (KR)
PCT Filed Jul. 27, 2020, PCT No. PCT/KR2020/009877
§ 371(c)(1), (2) Date Feb. 14, 2022,
PCT Pub. No. WO2021/029568, PCT Pub. Date Feb. 18, 2021.
Claims priority of application No. 10-2019-0098960 (KR), filed on Aug. 13, 2019; and application No. 10-2019-0109858 (KR), filed on Sep. 5, 2019.
Prior Publication US 2022/0293870 A1, Sep. 15, 2022
Int. Cl. H10K 50/87 (2023.01); H10K 59/40 (2023.01); H10K 77/10 (2023.01); G02F 1/1333 (2006.01); G06F 1/16 (2006.01); G09F 9/30 (2006.01); H10K 102/00 (2023.01)
CPC H10K 77/111 (2023.02) [H10K 50/87 (2023.02); H10K 59/40 (2023.02); G02F 1/133305 (2013.01); G06F 1/1652 (2013.01); G09F 9/301 (2013.01); G09G 2380/02 (2013.01); H10K 2102/311 (2023.02); H10K 2102/351 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A substrate for display comprising:
one surface and the other surface opposite to the one surface; and
a first area and a second area,
wherein the one surface is folded to face each other,
the first area is defined as a folding area, the second area is defined as an unfolding area,
a first hole passing through the one surface and the other surface is formed in the first area,
a 1-1 groove is formed on the one surface of the first area from the one surface toward the other surface,
a 1-2 groove is formed on the other surface of the first area from the other surface toward the one surface,
a 2-1 groove is formed on the one surface of the second area from the one surface toward the other surface,
a 2-2 groove is formed on the other surface of the second area from the one surface toward the other surface,
the 1-1 groove and the 1-2 groove do not overlap each other in a thickness direction of the substrate for display,
the 2-1 groove and the 2-2 groove do not overlap each other in the thickness direction of the substrate for display, and
at least one of the 1-1 groove, the 1-2 groove, the 2-1 groove and the 2-2 groove is formed in a depth of 50% or less of a thickness of the substrate for display.