Javascript for preventing "burn-in" problem on lcd screen

Question

I'm building a non-public web app that will be used as info-monitor. As such, it will be running 24/7 on one LCD TV display.

Since this could produce a "burn-in color" error on the LCD I'm looking for a Javascript that will prevent/reduce this problem. I want to use something similar to those they use on airport displays (a line periodically moving from left to right and top to bottom and switching color).

Do you know any Javascript doing this? Thank you!

Answer 1

In case you were still interested: (uses jQuery)

var $burnGuard = $('<div>').attr('id','burnGuard').css({
    'background-color':'#FF00FF',
    'width':'1px',
    'height':$(document).height()+'px',
    'position':'absolute',
    'top':'0px',
    'left':'0px',
    'display':'none'
}).appendTo('body');

var colors = ['#FF0000','#00FF00','#0000FF'], color = 0, delay = 5000, scrollDelay = 1000;
function burnGuardAnimate()
{
    color = ++color % 3;
    var rColor = colors[color];
    $burnGuard.css({
        'left':'0px',
        'background-color':rColor,
    }).show().animate({
        'left':$(window).width()+'px'
    },scrollDelay,function(){
        $(this).hide();
    });
    setTimeout(burnGuardAnimate,delay);
}
setTimeout(burnGuardAnimate,delay);

Working example found here: http://www.jsfiddle.net/bradchristie/4w2K3/3/ (or full screen version)