Tuesday Dec 3, 2019

redsharknews.com

This is how really

big video walls

were made in the 1980's

This is how really big video walls were made in the 1980. Let start with a puzzle: is there any technology available…
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By noreply@redsharknews.com (Phil Rhodes)
redsharknews.com

This is how really big video walls were made in the 1980. Let start with a puzzle: is there any technology available that emits blue light and can be switched on and off really fast, without the filament lag of a tungsten lightbulb? The history of really big video walls is a subject we were going to cover while waxing enthusiastic about Sony superlative CLEDIS display, which from a distance of more than a few feet is the closest thing to a perfect picture we have seen to date. A coil of neon (well, argon) tube might work, but it not that bright, and it not that easy to control the high voltage in the context of a single sub-pixel on a video display.

Coat the inside of the tube with blue-emitting phosphor and you have created a very complicated blue lightbulb - albeit one that can be….

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