ChatterBank3 mins ago
why are tv.'ssize measureddiagonallysaying a 15ins then when you measure the screen horizontally you lose about 4ins the same when measured vertically who's kidding the public ? come on.
5 Answers
about tv's measuremants
Answers
Best Answer
No best answer has yet been selected by maillme. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.The problem with using diagonal measurement is that it does not differentiate between aspect ratios.
e.g.
a 30" standard TV screen (4:3) is around 18" tall
a 30" widescreen TV screen (16:9) is only 16�" tall
In other words, a widescreen TV needs to have a diagonal screen measurement around 9% larger than its nominal 4:3 equivalent to actually have a viewable area of the same height.
e.g.
a 30" standard TV screen (4:3) is around 18" tall
a 30" widescreen TV screen (16:9) is only 16�" tall
In other words, a widescreen TV needs to have a diagonal screen measurement around 9% larger than its nominal 4:3 equivalent to actually have a viewable area of the same height.
it would make a lot more sense if they gave both width and height; but the diagonal measurement dates from the days when all screens were in the same proportion. They aren't now but widescreens are always advertised as such, as far as I know (because it's a selling point), so I don't think anyone's really being robbed here. A 30 inch screen is bigger than a 20 inch one.
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