| 摘要 |
A traveling-image sign is disclosed that comprises display columns that are depopulated so that the distances between the columns of light sources that provide the sign's display pixels are substantially larger relative to the distances between the display pixels in each column, than in 1:1 display pixel arrays used in conventional traveling-message signs. Because the 1:1 pixel array seen by the viewer looking at the depopulated sign includes virtual columns, that physical array of display column elements in the sign can be installed as separate, widely-spaced display-column elements in rows of icicles, ceiling fixtures, or banners, as well as being surface mounted in novel, unobtrusive ways. Because the display-column elements are slender and widely-spaced, they be substantially invisible to the viewer. Because the display-column elements are widely-spaced, the individual display-column elements are readily made plug-replaceable. The individual plug-replaceable display-column elements that are interchangeable as well as plug-replaceable are disclosed, which further reduces maintenance costs.
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