Coated light-turning feature with auxiliary structure

摘要

This disclosure provides systems, methods and apparatus for a front illumination device with metalized light-turning features. In one aspect, an illumination device includes a light guide having light-turning features that include recesses formed on the light guide and that extend down into the light guide. The recesses may be coated with a material where the material also forms an auxiliary structure outside of the recesses on the light guide. The auxiliary structure may be conductive and may form, for example, an electrode.

主权项

1. An illumination device comprising:
a light guide including light-turning features, wherein the light-turning features include recesses formed on the light guide and extending down into the light guide; a material coating at least some of the recesses; and an auxiliary structure formed outside of the recesses and on the light guide, the auxiliary structure at least partially formed of the material coating at least some of the recesses, and spaced apart from the material coating the at least some of the recesses, wherein the light guide has a top surface, wherein the light-turning features are formed on the top surface of the light guide, and wherein the auxiliary structure contacts the top surface of the light guide.