screen with redirection features of light produced by laser Panel

A screen (10) panel comprising: a transparent substrate (12), which has a display surface; a plurality of features (30) shaped radiation direction within the substrate (12); and a source (60) of electromagnetic radiation configured to introduce electromagnetic radiation (62) within the substrate (12); wherein the features (30) are configured to direct at least a portion of the electromagnetic radiation (62) introduced into the substrate (12) by the source (70) of electromagnetic radiation primarily to the surface (26) display to form a predetermined image in which the features (30) have a cylindrical or tube shape with a first and second ends (32, 34), wherein the features (30) are curved and direct electromagnetic radiation (62) from the first end (32) to the second end (34) to act as a waveguide or optical channel.