Patent ID: 8890133

Claim:
A support for an organic light-emitting diode device successively comprising a transparent substrate, made of mineral glass, provided with first and second opposite main faces, the substrate being coated on its second face with a diffusing layer which comprises a vitreous mineral binder and diffusing elements dispersed in the binder, wherein the vitreous binder comprises from 40% to 60% by weight of bismuth oxide Bi 2 O 3 , wherein the proportion of the vitreous binder is at least 20% of the total weight of the diffusing layer, and wherein the vitreous binder comprises, by weight: from 0% to 10% of SiO 2 , from 0% to 5% of Al 2 O 3 , from 8% to 25% of B 2 O 3 , from 0% to 10% of CaO, from 0% to 20% of BaO, from 0% to 5% of Li 2 O, from 0% to 10% of Na 2 O, from 0% to 5% of K 2 O, from 0% to 5% of ZrO 2 , from 0% to 5% of SrO, from 0% to 5% of La 2 O 3 .