1. Join Now

    AVForums.com uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

What is a Geometry Problem?

Discussion in 'Televisions' started by kp1, Aug 2, 2005.

  1. kp1

    kp1
    Guest

    Products Owned:
    0
    Products Wanted:
    0
    Ratings:
    +0
    Can anyone help... what is a geometry problem? what happens/doesnt happen? :lease:
     
  2. 5lab

    5lab
    Standard Member

    Joined:
    Feb 13, 2003
    Messages:
    46
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    6
    Ratings:
    +0
    basically it is where the picture isnt a perfect rectangle within the screen. commonly the edges are concave, or the picture is tilted (one end lower than t'other), or something similar. i think i'm right in saying it only affects CRTs because panels have fixed pixel locations

    nearly every crt will have geometry distortion of some sort - normally its slight or within tollerances, and you might not notice. cheap sets (<£200) overscan the picture - that is the picture starts before the edge of the screen and finishes past the other side in order to hide this. widescreen tvs show up the problem more often because of 4:3 mode which is impossible to overscan on (so you see the edge of the picture)
     
  3. kp1

    kp1
    Guest

    Products Owned:
    0
    Products Wanted:
    0
    Ratings:
    +0
    thanks for that. makes sense now

    KP
     
  4. LV426

    LV426
    Administrator Staff Member

    Joined:
    Jul 14, 2000
    Messages:
    12,753
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    166
    Location:
    Somewhere in South Yorkshire
    Ratings:
    +4,907
    Yes, those things, plus (for example) picture more compressed in some place than another (might result in, say, scrolling titles getting quicker as they go upwards). Basically anything to do with the correct shape of the picture being displayed wrongly.

    The only sure way to perfect geometry is direct view flat panels - LCD or Plasma.
     
  5. lynx

    lynx
    Well-known Member

    Joined:
    Jan 20, 2002
    Messages:
    4,633
    Products Owned:
    0
    Products Wanted:
    0
    Trophy Points:
    106
    Location:
    It always rains.
    Ratings:
    +301
    If you're using a crt monitor,the adjustment settings on that will give you an idea what geometry issues are all about.
     

Share This Page

Loading...