Patent ID: 8753906
Filing Date: 2014-06-17
Classification: C03C,H01L,Y10T

Abstract:
1. A method for manufacturing a structure having a textured surface, comprising a substrate made of mineral glass having a given texture, for an organic-light-emitting-diode device, the method comprising: supplying a rough substrate, having a roughness defined by a roughness parameter Ra ranging from 1 to 5 μm over an analysis length of 15 mm and with a Gaussian filter having a cut-off frequency of 0.8 mm; and depositing a liquid-phase silica smoothing film on the substrate, said film being configured to smooth the roughness sufficiently and to form the textured surface of the structure, wherein the textured surface of the structure is defined by a roughness parameter Rdq smaller than 1.5°, and by a roughness parameter Rmax smaller than 250 nm, over an analysis length of 180 μm and with a Gaussian filter having a cut-off frequency of 25 μm.