Transparent roof panel assembly for a vehicle roof

A transparent roof panel assembly for a vehicle roof of a vehicle, the transparent roof panel assembly comprising:

• a panel having at least a transparent area, the panel being configured to be arranged over an opening in the vehicle roof to allow visible light to pass in a first direction through the transparent area, the first direction extending between an exterior of the vehicle and an interior of the vehicle and substantially perpendicular to a surface of the panel;
• a light source arranged to provide light in the panel in a second direction, wherein the second direction is substantially perpendicular to the first direction,
• wherein the panel comprises:
• a first transparent layer having a first main surface and a second main surface opposite the first main surface,
• the light source being configured to provide light in the first transparent layer such that at least a part of the light propagates between the first main surface and the second main surface through the first transparent layer;
• a second transparent layer arranged adjacent to the first main surface;
• and
• a light outcoupling pattern arranged between the first main surface of the first transparent layer and the second transparent layer, wherein the light outcoupling pattern is configured for scattering at least a part of the light propagating in the first transparent layer such that at least a part of the light propagating in the first transparent layer exits the first transparent layer through the second main surface,
• wherein the light outcoupling pattern comprises scattering particles arranged in a transparent carrier composition, and
• wherein the scattering particles are pigments in a white ink having a pigment concentration of 0.01-1.5% by weight.