US 11,740,551 B2
Method for producing substrate
Jun Haeng Lee, Daejeon (KR); Yeon Keun Lee, Daejeon (KR); Jung Doo Kim, Daejeon (KR); Han Min Seo, Daejeon (KR); Cheol Ock Song, Daejeon (KR); and Nam Seok Bae, Daejeon (KR)
Assigned to LG Chem, Ltd.
Appl. No. 16/764,685
Filed by LG Chem, Ltd., Seoul (KR)
PCT Filed Nov. 23, 2018, PCT No. PCT/KR2018/014542
§ 371(c)(1), (2) Date May 15, 2020,
PCT Pub. No. WO2019/103533, PCT Pub. Date May 31, 2019.
Claims priority of application No. 10-2017-0158103 (KR), filed on Nov. 24, 2017.
Prior Publication US 2020/0409253 A1, Dec. 31, 2020
Int. Cl. G03F 7/039 (2006.01); G03F 7/11 (2006.01); G03F 7/16 (2006.01); G03F 7/20 (2006.01); G02F 1/133 (2006.01); G03F 1/60 (2012.01); G02F 1/00 (2006.01); G02F 1/1339 (2006.01)
CPC G03F 1/60 (2013.01) [G02F 1/0063 (2013.01); G02F 1/13392 (2013.01); G03F 7/039 (2013.01); G03F 7/11 (2013.01); G03F 7/16 (2013.01); G03F 7/2004 (2013.01); G02F 1/13398 (2021.01)] 6 Claims
OG exemplary drawing
 
1. A method for producing a substrate consisting of exposing and developing a photosensitive resin composition layer formed on a surface of a substrate base layer to produce a spacer,
wherein the photosensitive resin composition layer formed on the surface of the substrate base layer consists of a photosensitive resin and beads,
wherein the beads consist of acrylic beads, silicone beads, silica beads, talc beads, urethane beads, epoxy beads, zeolite beads or polystyrene beads, having
a shape selected from the group consisting of a spherical shape, a columnar shape, a polygonal shape, and an amorphous shape,
wherein the beads consist of beads having a size in a range of 1 μm to 50 μm, and the size is equal to a height of the spacer,
wherein the method is performed by a roll-to-roll process,
wherein the spacer formed using the photosensitive resin composition layer consists of the photosensitive resin and the beads, and
wherein the exposing is performed in a state where a mask is in contact with the photosensitive resin composition layer.