Abstract:
A transparent diffusive OLED substrate includes the following successive elements or layers: a transparent flat substrate made of mineral glass having a refractive index of between 1.45 and 1.65, a rough low index layer including mineral particles, the mineral particles being bonded to one side of the substrate by means of a low index enamel, the mineral particles near, at or protruding from the enamel's surface creating a surface roughness characterized by an arithmetical mean deviation Ra comprised between 0.15 and 3 μm, the mineral particles and enamel both having a refractive index of between 1.45 and 1.65; a high index planarization layer made of an enamel having a refractive index comprised between 1.8 and 2.1 covering the rough low index layer (b).
Abstract:
A transparent diffusive OLED substrate includes the following successive elements or layers: (a) a transparent flat substrate made of mineral glass having a refractive index n1 of between 1.48 and 1.58, (b) a monolayer of mineral particles attached to one side of the substrate by means of a low index mineral binder having a refractive index n2 of between 1.45 and 1.61, and (c) a high index layer made of an enamel having a refractive index n4 between 1.82 and 2.10 covering the monolayer of mineral particles, the mineral particles having a refractive index n3 between n2+0.08 and n4−0.08 and protruding from the low index mineral binder so as to be directly in contact with the high index layer, thereby forming a first diffusive interface between the mineral particles and the low index binder, and a second diffusive interface between the mineral particles and the high index layer.
Abstract:
A transparent diffusive OLED substrate includes (a) a transparent flat substrate made of mineral glass having a refractive index of between 1.45 and 1.65, (b) a rough low index layer including mineral particles, the mineral particles being attached to one side of the substrate by means of a sol-gel mineral binder, the mineral particles near, at or protruding from the mineral binder's surface creating a surface roughness characterized by an arithmetical mean deviation Ra comprised between 0.15 and 3 μm, the mineral particles and mineral binder both having a refractive index of between 1.45 and 1.65; (c) a high index layer made of an enamel having a refractive index comprised between 1.8 and 2.1 covering the rough low index layer.
Abstract:
Method of using a device for displaying a real image of the head-up display (HUD) type in a passenger compartment comprising glazing, notably laminated glazing, said device comprising a source emitting a beam of radiation of the visible UV or IR laser type or of the light-emitting diode type, directed towards a portion of said glazing comprising a fluorescent material absorbing said radiation and re-emitting light in the visible region, the illumination of said portion by the beam enabling a real image to be displayed on the glazing.