Linked by Thom Holwerda on Sat 11th Aug 2012 14:31 UTC
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Member since:
2009-06-30
For the most part we can assume that ~300dpi of full grayscale pixels in a handheld device is more than enough for all except synthetic use cases.
You're right that there are no simple metrics for evaluating our senses. For example, we are unable to detect lack of light for ten milliseconds but anyone would easily see a sudden burst of light, even if it took only one millisecond. Same with the resolution, you could argue that "sufficient" resolution is one when you can't see a single fully-on white pixel on a black background. That could indeed require a higher resolution but frankly speaking who cares, especially that a good solution already exists (just dim the pixel).
Besides, resolution is only one of things to improve (true, it was long neglected). Refresh rates, contrast, and color reproduction are still lagging quite a bit, and there are many tradeoffs involved there too (resolution vs contrast or refresh rate etc.).