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How Pixel works?

Discussion in 'Electronic Basics' started by [email protected], Aug 30, 2006.

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  1. Guest

    I have done my homework (doing research). And I still like to
    understand how to activate a pixel with a different color. I know that
    within a pixel, there are three phosphor dots

    http://en.wikipedia.org/wiki/Pixel
    http://en.wikipedia.org/wiki/Pixel_geometry
    http://electronics.howstuffworks.com/lcd9.htm

    And millions of of Transistors are needed

    http://en.wikipedia.org/wiki/Transistor

    But how exactly this works? How do we control the large number of
    transistors & pixels?

    Also, is Pixel same as Dot?

    Thanks.
     
  2. BobG

    BobG Guest

    ===============================
    To the graphics programmer, the screen is an array of pixels... each
    pixel is 32 bits...8 bits of Red, Green, Blue and Alpha. So there can
    be 256 shades of R G and B, for a total of 16 million colors. The
    Alpha channel is extra cerdit for grad students using Silicon Graphics
    and Open GL to do transparent overlays and other cool visual effects.
     
  3. Guest

    To the graphics programmer, the screen is an array of pixels... each
    But I wonder how it works internally within the LCD though. So the
    subpixel got activated by different level of voltage? And why it is
    more costly to have lower pixel pitch? (look at the manufacture
    standpoint)
     
  4. BobG

    BobG Guest

    ==========================================
    Each RGB element is a Thin Film Transistor. Each RGB element must be
    refreshed fast enough to not perceive flicker.
     
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