US 11,813,837 B2
Method of eliminating entrained air between substrates during optical bonding
Carlos Caldeira, Palmela (PT); Nelson Lima, Lisbon (PT); Hugo Cardoso, Lisbon (PT); Andre Ruza, Palmela (PT); Antonio Aires, Lisbon (PT); Andre Mendiboure, Rueil Malmaison (FR); Abhilash Marthi Somashankar, Northville, MI (US); and Richard K. McMillan, Dearborn, MI (US)
Assigned to Visteon Global Technologies Inc., Van Buren Township, MI (US)
Filed by Visteon Global Technologies, Inc., Van Buren Township, MI (US)
Filed on Jul. 10, 2020, as Appl. No. 16/925,495.
Claims priority of provisional application 62/872,853, filed on Jul. 11, 2019.
Prior Publication US 2021/0008836 A1, Jan. 14, 2021
Int. Cl. B32B 7/14 (2006.01); B32B 37/12 (2006.01); C09J 9/00 (2006.01); C09J 5/04 (2006.01); G02F 1/1333 (2006.01)
CPC B32B 7/14 (2013.01) [B32B 37/1292 (2013.01); C09J 5/04 (2013.01); C09J 9/00 (2013.01); B32B 2457/202 (2013.01); C09J 2203/318 (2013.01); C09J 2301/204 (2020.08); C09J 2301/208 (2020.08); G02F 1/1333 (2013.01); G02F 2202/28 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method of forming a display article, the method comprising:
dispensing a dam material onto a first substrate;
after dispensing, pre-curing the dam material to form a dam;
depositing a liquid optically clear adhesive in a first fill pattern onto the first substrate such that the first fill pattern is spaced apart from the dam to thereby form a coated first substrate;
depositing the liquid optically clear adhesive in a second contact pattern onto a second substrate to thereby form a coated second substrate;
flipping the coated second substrate upside down;
translating the coated first substrate and the coated second substrate towards one another to eliminate an air gap defined between the coated first substrate and the coated second substrate;
contacting the first fill pattern and the second contact pattern at a plurality of single points spaced apart from one another; and
compressing the first fill pattern and the second contact pattern to eliminate the air gap and air entrained between the coated first substrate and the coated second substrate and thereby form the display article.