Operator comfort, not impact, is the goal
The demands on a control room display wall are high.
It must allow multiple operators to see crucial information, providing a common operating picture they can use to work collaboratively in critical situations.
The displays must be crisp, clear and readable, but just as important, they must be comfortable to view all day, every day, as operators shift their eyes constantly from their local monitors to the display wall and to materials on their desks. For that reason, the optimal brightness of a control room display wall is a lot different than the brightness of the video walls you may see in an airport, retail mall or entertainment venue. There, impact is the key, as the displays are meant to capture attention and hold it for short periods of time. Brightness and contrast are at a premium.
In a control room, on the other hand, too much brightness is the enemy. It can cause eyestrain that will impair operators’ ability to work efficiently, limiting their productivity and the value of the installation.
In this paper, we will look at the principals of brightness in a control room and how they affect the choice of the display.
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