Pixel (or dot) pitch

  • Thread starter Thread starter George
  • Start date Start date
G

George

Can anyone point me to a site that explains the subject in layman
terms, specifically as it relates to LCD screens of laptops?

Thanks,
George

P.S. Pls. reply in newsgroup. E-mail address is invalid.
 
look in 'display' properties window -> 'settings' tab
see the 800x600
800 pixels across (horizontal)=(x)
600 pixels down (vertical)=(y)

it starts in upper left corner (0,0)...moves right...
repeats on next line below...lower right corner (800,600)
 
Can anyone point me to a site that explains the subject in layman
terms, specifically as it relates to LCD screens of laptops?

Thanks,
George

P.S. Pls. reply in newsgroup. E-mail address is invalid.

The dot pitch a measurement of how close the centre of each pixel is
to each other physically. For example, a typical dot pitch for a CRT
is 0.28, and is measured in milimeters (mm). The smaller this value,
the sharper the image. The reason being that since the pixels are
packed tightly, having a smaller dot pitch means the pixels themselves
are likely smaller too. Same with LCD screens.

There are some minor differences in how the measurements are taken
depending on the monitor type, because the arrangement of pixels can
be different on different monitor types, but this is usually not a
major concern for most people
 
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).
 

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