POV-Ray : Newsgroups : povray.off-topic : Technology cycles : Re: Technology cycles Server Time
8 Oct 2024 17:17:39 EDT (-0400)
  Re: Technology cycles  
From: clipka
Date: 23 Sep 2009 09:30:40
Message: <4aba2300$1@news.povray.org>
SharkD schrieb:
> Yeah, I hate how LCD screens appear so washed out when you're not 
> sitting directly in front of them. Also, I learned recently that LCD 
> screens are not immune to Van Eck Phreaking. I wonder if electronic 
> paper is?

Starting with LCDs, it's not so much a question of display, but rather 
of data transmission between computer and display. It's the tradition of 
transmitting the whole image N times per second that leaves LC displays 
still prone to such types of attacks.


With e-paper, it would appear prudent to transmit only changes in the 
image buffer (so that an eavesdropper couldn't afford to miss a single 
bit), but it is yet to be seen whether this will happen. After all, even 
with contemporary displays it would appear to me much more efficient to 
transmit only the delta of information, at least for everyday office use.


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