How could SpeedCheck be that much better than the others?
Fifteen years ago, we (and other manufacturers of outdoor signs) used mechanical displays. We did so in spite of the potential for mechanical problems and the sun fading of the reflective material, because at that time mechanical displays still provided better view-ability in bright sunlight than LEDs. At that time, LED displays were not yet able to overcome the intensity and reflections of direct sunlight. We continued to use LEDs only on displays designed for indoor use, until we had completely solved the problems of glare and poor contrast that were caused by direct sunlight. In our 2nd generation sign, after a considerable amount of development of the technologies that make up our UltraClear contrast enhancement feature, we were finally able to reliably produce the extremely high contrast ratio necessary for LEDs to consistently outperform mechanical displays, even in bright direct sunlight. In bright direct sunlight, new mechanical displays can provide good visibility, and are bet
