LIGHT GUIDE PANEL WITH TURNING MICROSTRUCTURE, METHOD OF FABRICATION THEREOF, AND DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an illumination device that includes a light guide having a first end for receiving light and is configured to support propagation of light along the length of the light guide.

SOLUTION: A turning microstructure is disposed on a first side of the light guide and configured to turn light incident on the first side and to direct the light out a second opposite side of the light guide, wherein the turning microstructure includes a plurality of indentations. A cover is physically coupled to the light guide and disposed over the turning microstructure. An interlayer physically couples the cover to the light guide and is between the cover and the light guide. A plurality of open regions are between the interlayer or the cover and the plurality of indentations. Various embodiments include methods of coupling the cover to the light guide with or without interlayer while preserving open regions between the cover and plurality of indentations.

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