Talk:Flicker (screen)

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Flicker Filter[edit]

"The constant refreshing of a CRT monitor can cause various symptoms in those sensitive to it such as headaches in migraine sufferers and seizures in epileptics, if they are photosensitive. Screen filters are available to reduce these effects"

Can anyone provide a citation or source for this? I developed a seizure disorder 4 years ago that causes me to have seizures as a result of flickering lights. Fluorescent lights are the worst culprit, rendering me unable to go into most public buildings without a blindfold, but many types of monitor and television screen cause issues for me as well. I'd love to know where I can find a filter that may help. (talk) 15:37, 3 January 2014 (UTC)


I think this article might be better situated at Screen flicker -- any objections? — Catherine\talk 05:16, 8 August 2006 (UTC)


This article is completely wrongheaded. "Flicker" is an optical/biological phenomenon of which CRTs are one of many causes. Trying to write the article the other way round has made it the mess it is today. -- 15:33, 19 January 2007 (UTC)

Well, this article IS titled "Flicker (screen)" -- it's supposed to deal with CRTs. The optical/biological phenomenon could/should have a page of its own, linked from the disambiguation page at Flicker. — Catherine\talk 05:25, 20 January 2007 (UTC)
But as far as I can tell this is the only page on Wikipedia that attempts to cover the topic, and the overlap between any new article and this article would be so great that adapting this one seems best, especially as flicker produced by CRTs isn't such a special case that it deserves its own article. --

Backlights DO operate at 40...50kHz[edit]

LCD monitor backlights ARE driven at 40...50kHz. Please read these documents:

You are mixing up the lamp frequency with the frequency of burst dimming, which works in the frequency range you have given. —Preceding unsigned comment added by Shtmlhu (talkcontribs) 12:49, 11 October 2008 (UTC)

Pictures required[edit]

I think this article need Pictures to show the phenomena like the one in this site — Preceding unsigned comment added by (talk) 13:31, 29 May 2013 (UTC)