| 摘要 |
<P>PROBLEM TO BE SOLVED: To attain recycling of light that will exit from a display outside of an allowable range and reduction in appearance of reflected moire, too. <P>SOLUTION: In a structured optical film having a structured surface, the structured surface 44 includes (a) a plurality of generally parallel peaks 46, each pair of adjacent peaks being separated by a valley 48, (b) a first group 50 of at least three adjacent peaks having a first definite peak pitch and (c) a second group 52 of adjacent peaks having a second peak pitch, the second group of adjacent peaks being located adjacent to the first group of adjacent peaks, wherein the first peak pitch is different from the second peak pitch. <P>COPYRIGHT: (C)2009,JPO&INPIT |
