display - What is the most optimal viewing distance for different resolutions (or sizes) monitors?

I'm using a 17" TFT at 1280x1024 at home and work. I'm also using 14" TFT at 1024x768. What is the least stresfull distance for the eye to work with it? What is the general connection between screen size, resolution and viewing distance? Some kind of a formula?

Do you know of any research papers on that topic?

Answer

I'd say that the optimum distance depends greatly on the watcher. One should use a distance that feels comfortable.

There exists quite a few HDTV distance calculators in the net but they, as their name suggests, are mainly targeted to TVs and to screen sizes of 22" and up. The rule of thumb with smaller screens used to be that you should sit an arm's length from the screen.

Some scientific sources - more or less - are listed e.g. in Wikipedia's HDTV viewing distance article.

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