Designpanel from Nuremburg is a resin panel manufacturer for architectural applications, including a series of translucent colors, panels with decorative adders (such as meshes, organics, air bubbles, etc) and CNC-milled textures .  They have a small series edge-lit LED panels called, appropriately enough, Lightpanel.

I also liked this clear panel called “bubbles”….must generate some very interesting light effects.