High Def Forum
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Newcomer question ...

05-12-2008, 03:45 AM
I landed in this forum after searching for a while in the net.
The question is stupid, I know.
Which is the meaning of the diagonal figure in a 16:9 display? Similar to 4:3?
In other words, if in the 4:3 I have the ratio D=5, W=4, H=3, in the 16:9 is it meant

D=18.36, W=16, H=9


This is what I believe but some funny guy told me that in the 16:9 the diagonal is a conventional value "as if" it were a 4:3, that is:

D=5, W=4, H=2.25

Thank you for the help,

05-12-2008, 05:26 AM
Your thinking is correct. 16:9 is the horizontal to vertical aspect ratio.
Televisions are sold based on the diagonal measure of the screen whether they are 16:9 sets or 4:3 sets.

05-12-2008, 05:49 AM
Thank you! The point is that in the other case, the numbers sound more "round".