Posted By
Rybags
on 2013-09-18
09:43:14
|  Re: +4 biggest screen resolution
Interlace will show flickering when there's single pixel high stuff on a CRT. It's the nature of the beast.
You can overcome it to a degree by ensuring horizontal/near horizontal lines are at least 2 pixels tall. It defeats the purpose a little but you still have the doubling of reolution WRT where objects can be placed.
Many modern LCD displays will employ frame blending and display at 25 Hz in Pal - in some cases you even get interlace whether you want it or not as the device decided to display 312p images being fed to it at 50 Hz as 625p at 25 Hz.
How many lines you can see is a limitation of the display. Even many really old TVs have a Vertical Height control which allows you to control the under/overscan area.
Default setting is usually that 15-20 or more scanlines of the 625 are lost at the top and bottom.
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