From: Robin Hollands Subject: Re: TECH: depixelization Date: Mon, 02 Sep 1996 12:56:06 +0100 Message-ID: <322ACB56.C11@shef.ac.uk> Organization: Automatic Control & Systems Engineering, University of Sheffield Jeananne Kenney wrote: > > I couldn't find a good explanation of depixelization. Can you give me > one? Also, one source said the CyberMaxx had depixilization and one > said it didn't, can you clear this up? If you look at a standard LCD panel under high magnification (such as found in HMDs) what you will actually see are lots of individual red, green and blue dots, seperated by a mech of thin black lines. In fact, without a depixellating filter, or some form if image diffusion, you would probably be hard pressed to actually spot the image on the screen (can't see the forest for the trees!). The depixellating filter contains many minature optics, designed specifically for the LCD screen it is used with, which bends the light from each red, green and blue element in a triad into a single colourised point of light. The light point is slightly magnified so that it butts up to adjoining pixels, hiding the chicken-wire mesh which would otherwise be seen. The result is a crisp, bright image, and the lack of any visual discontinuities also makes the resolution appear higher than an equivalent screen with no filter. The old CyberMaxx 120K did not use a depixellating filter, but the newer CyberMaxx 180K did. Cheers, Robin Email: r.hollands@shef.ac.uk WWW: http://www.shef.ac.uk/~vrmbg/staff/rjh/rjh.html BOOK: http://www.shef.ac.uk/~vrmbg/vrhmhb/vrhmhb.html