George said:
Can anyone point me to a site that explains the subject in layman
terms, specifically as it relates to LCD screens of laptops?
The image on screen is built up from very many groups of dots, one each
Red Green and Blue. On a laptop, at its 'natural resolution', there is
one group corresponding to each individual Picture element (Pixel) of
the 'screen picture' as held in the computer's memory. So, typically,
1024 across and 768 vertically. These screens work best when used at
this resolution, where there is a one to one correspondence, as opposed
to say working at 640x480 resolution, and having to spread only 16
dots of the picture across not exactly 25 of the screen
If the screen is in fact 9.6 inches across, that makes the distance
between matching dots 9.6/1024 or 0.009375 inches, (0,24 mm). This on
a laptop is the dot pitch. Often described more conveniently aa 106 DPI
(dots per inch).