Display addressing scheme: Difference between revisions

Revision as of 13:15, 28 February 2004

Revision as of 13:19, 28 February 2004

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There are three different '''addressing schemes''' for [[display]]-devices; 1) ''electronically'' or 2) ''optically addressed displays'', or 3) ''addressing by plasma columns''. Each teqnique allows a physical way of switching the [[pixel]] to a black-white or more usually gray-scale state.

Colour displays or the [[pixel geometry]] are actually implemented using three [[gray-scale]] component system making up one [[pixel]], and each component is followed with a [[primary colour]]-filter to separate the [[red]], [[green]] and [[blue]]. So the treatment simplifies since it is sufficient to consider only a pixel with ''N'' gray shades. The shade level is typically lineary dependent on the applied potential over the pixel, so each level will translate into a channelseparation of say ''ΔV/N'' [[volt]]s per gray shade, where ''ΔV'' is the potential range that the pixel respons to. Each separation is typically some [[millivolt|mV]]. Since there is risk for a [[crosstalk|cross-talk]], the addressing scheme must carefully be designed so that addressing a pixel does not affect other neighbours.

== Electronically addressing ==