	US 11,691,909 B2
	Textured glass for light extraction enhancement of OLED lighting
Xinyu Cao, Shanghai (CN); Haixing Chen, Shanghai (CN); Ling Chen, Shanghai (CN); Chenglong Dai, Shanghai (CN); Kwang je Woo, Asan-si (KR); and Jianqiang Zhu, Shanghai (CN)
Assigned to Corning Incorporated, Corning, NY (US)
Appl. No. 16/465,259
Filed by CORNING INCORPORATED, Corning, NY (US)
PCT Filed Nov. 30, 2017, PCT No. PCT/US2017/063878 § 371(c)(1), (2) Date May 30, 2019, PCT Pub. No. WO2018/102512, PCT Pub. Date Jun. 7, 2018.
Claims priority of provisional application 62/428,088, filed on Nov. 30, 2016.
Prior Publication US 2019/0345056 A1, Nov. 14, 2019
Int. Cl. C03C 15/00 (2006.01); H10K 50/858 (2023.01)

CPC C03C 15/00 (2013.01) [H10K 50/858 (2023.02); C03C 2204/08 (2013.01)]

11 Claims

1. A device, comprising:

an article comprising a textured glass substrate comprising a first face, a second face, a thickness of 30 μm to 2 mm measured from the first face to the second face, and at least one edge;

the first face comprising an approximately planar surface comprising a first surface roughness, R_a1, of less than 2 nm; and

the second face comprising a textured surface comprising a second surface roughness, R_a2, of from 200 nm to 600 nm and a plurality of surface features comprising a feature size, F, of 2 μm to 20 μm in diameter;

a cathode;

an anode; and

at least one organic light emitting layer that is capable of emitting light,

wherein the textured glass substrate is coupled to the device such that light emitted from the organic light emitting layer passes through the textured glass substrate.