31. oktober 2002 - 10:24Der er
8 kommentarer og 1 løsning
2 streger på skærm
Hej!
Jeg har købt en brugt IBM P202 21". Der er to "streger", der deler skærmen i 3 ca. lige store dele... Har også set det på helt nye skærme. Er det meningen? Og hvad er årsagen til, at de er der?
Skal virksomheder stå stærkere mod angreb og kunne udvikle sig, skal sikkerhed, drift og forretning tænkes sammen. Det er tanken bag Jysk IT’s ambition om at skabe en “sikker fremtid” for kunderne.
This is normal. What you are seeing is the shadow cast by the horizontal damper wires used to stabilize the aperture grille featured on all Sony Trinitron picture tubes.
Currently, there are two display technologies designed to isolate individual picture elements (pixels). Together, these pixels form the image displayed on a computer's monitor. Shadow mask technology relies on a metal sheet with small holes to separate pixels both horizontally and vertically. Aperture grille on Trinitron technology employs a series of thin, closely-spaced vertical wires to isolate pixels horizontally. The pixels are separated vertically by the nature of the scan lines used to compose the image.
To keep the vertical wires in an aperture grille properly aligned within the picture tube, one or two horizontal damper wires are required. These wires are located roughly one-third of the way from the top and bottom of the screen. Each wire casts a faint shadow that is visible as a light gray, horizontal line on the image. This shadow is normally not visible, but may become apparent when displaying a lightly-colored background.
These gray lines are inherent to the Trinitron technology, on any computer displays as well as on TV screens, regardless of the brand. On a normal window's background, this is not visible. Only when large light (e.g. white) backgrounds are displayed, these lines become visible.
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