LCD flickering on dithered patterns

[geobel]

I have noticed that my T40 LCD (11P8356 0000000 unknown manufacturer) gives some flickering on dithered patterns (for example the one in display mate test). When I display same images on T42 (Samsung panel) or external monitor (Samsung 173P via DVI) no flickering is present. Can anybody else see background flickering on this page:

http://bioweb.uwlax.edu/GenWeb/Evol_Pop ... v_paup.htm

Flickering is most noticeable if one looks from downside of LCD
Any ideas how to fix it?

Gosha

[Flightvector]

The LCDs I have only do this when scrolling, and also on textures with alternating lines of pixels or differing color. Scrolling asks the pixels to do to much in a little time and results in a large cycling of either color. But I am not very sure about your flicker. Are you running at native resolution? Flicker should not happen otherwise since LCDs do not refresh when the image is constant. A voltage issue could be possible where the pixels are not liking such differences so nearby, or the video card may be having issues. Also, has it always done this before?

[geobel]

I run my XGA display at native 1024 x 768. I have noticed this flicker effect long time ago in displaymate (free demo version) tests. There is very nice dithered pattern that I always use to adjust phase of analog projectors and LCDs. Surprisingly I found that my T40 LCD does some flicker on this pattern. T40 flicker is however different from analog LCD noise. It looks very much like if I were running CRT at 60 Hz. However I never noticed flicker in any real objects for a year. The link in my above post is the first page were I can see flicker.

Gosha