Transparentes Oled-Diffusionssubstrat und Verfahren zur Herstellung Solch eines Substrats

Details

Veröffentlichungs-Nr.

EP3028999

Aktenzeichen

EP14195677

Anmeldetag

1. Dezember 2014

Veröffentlichung

24. Mai 2017

Erteilung

24. Mai 2017

Rechtsraum

EP

IPC

C03C17/00C03C17/04C03C17/34C03C8/04H01L51/00H01L51/52C03C21/00

Abstract

The invention is drawn to a method for preparing a laminate substrate for a light emitting device, said method comprising the following successive steps: (a) providing a glass substrate (1) having a refraction index, at 550 nm, of between 1.45 and 1.65, (b) coating a glass frit (3) having a refractive index, at 550 nm, of at least 1.7 onto said glass substrate (1), (c) firing the resulting frit coated glass substrate at a temperature above the Littleton temperature of the glass frit thereby forming a first high index enamel layer (4), (d) coating a metal oxide layer (2) onto said first high index enamel layer, (e) firing the resulting coated glass substrate at a temperature above the Littleton temperature of the glass frit thereby making react the metal oxide (2) with the underlying first high index enamel layer (4) and forming a second high index enamel layer (5) with a plurality of spherical voids (6) embedded in the upper section of the second high index enamel layer (5) near the interface with air, and optionally (f) coating a transparent electro-conductive layer (TCL) (8) on the second high index enamel layer (5).

Anmelder

Firma

Saint-Gobain Glass France

Land

🇫🇷 Frankreich

Fachgebiete