Printed Microdot Light Extraction

Example 6

FIG. 26 shows an annotated photograph of an ordered pattern of optically clear microdots (transparent light extraction features 8) printed on a surface of light guiding sheet 10 using a transparent UV-curable ink. The microdots in this print had elongated shapes generally aligned parallel to the X axis.

Example 7

Similarly, FIG. 27 shows an annotated photograph of optically clear microdots (transparent light extraction features 8) that were printed using the same type of ink as in the Example 6 but also using a lower density of the pattern (greater spacing distances SPD between adjacent microdots).