US 12,420,527 B2
Bendable element
Wei Xiao, Suzhou (CN); Ning Da, Suzhou (CN); and Feng He, Suzhou New District (CN)
Assigned to SCHOTT GLASS TECHNOLOGIES (SUZHOU) CO. LTD., Jiangsu (CN)
Filed by SCHOTT GLASS TECHNOLOGIES (SUZHOU) CO. LTD., Jiangsu (CN)
Filed on Aug. 20, 2021, as Appl. No. 17/408,153.
Claims priority of application No. PCT/CN2020/110428 (WO), filed on Aug. 21, 2020.
Prior Publication US 2022/0055348 A1, Feb. 24, 2022
Int. Cl. B32B 17/10 (2006.01); C03C 3/083 (2006.01); G06F 1/16 (2006.01); G09F 9/30 (2006.01); H04M 1/02 (2006.01)
CPC B32B 17/10018 (2013.01) [B32B 17/1055 (2013.01); C03C 3/083 (2013.01); G06F 1/1652 (2013.01); G09F 9/301 (2013.01); H04M 1/0268 (2013.01); B32B 2255/26 (2013.01); B32B 2307/536 (2013.01); B32B 2307/542 (2013.01); B32B 2307/546 (2013.01); B32B 2307/558 (2013.01); B32B 2307/732 (2013.01); B32B 2367/00 (2013.01); B32B 2379/08 (2013.01); B32B 2457/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A bendable element, the element comprising:
a thickness between a first primary surface and a second primary surface of the element;
a length of the element;
a width of the element;
at least one bendable glass layer between the first and second primary surfaces,
wherein the at least one bendable glass layer has a warp of not more than 2.0 mm;
one or more bendable polymer layers,
wherein at least one of the one or more bendable polymer layers has a thickness of 10.0 μm or more;
a total polymer thickness PT of the element that ranges from 20.0 μm to 600 μm,
wherein the total polymer thickness is a sum of the thicknesses of the one or more bendable polymer layers;
a total non-polymer thickness NPT of the element that ranges from 20.0 μm to less than 100 μm,
wherein the total non-polymer thickness is the sum of the thicknesses of any non-polymer layers in the element; and
a thickness ratio PT/NPT of the element that ranges from >0.0 to <5.0,
wherein the one or more polymer layers are attached to the at least one bendable glass layer by one or more adhesive layers,
wherein the element can be bent to a bending radius of 5.0 mm without failure, and
wherein the element has reduced persistent deformation characterized by a total persistent deformation a0 of not more than 3.0 mm and a deformation recovery time b1 of less than 10 hours after bending the element to a bending radius of 15.0 mm for 24 hours at 25° C. and 30% relative humidity.