does electronic text still INSERT itself?

I should probably know this, but I don’t – perhaps you can help me? Do the LCD screens we use today still refresh 30 times a second or whatever the way projectors and old screens used to?

See, Michael Joyce writes:

The computer is always reread, an unseen beam of light behind the electronic screen replacing itself with itself at thirty cycles a second. Print stays itself–I have said repeatedly–electronic text replaces itself.

That’s evocative, but is it strictly true anymore? There’s certainly no longer a beam of light shot at the screen from behind as in cathode ray screens, but to be honest, I’m not entirely sure quite how LCD screens do work. Just little sort of diodes or something? (Yeah I know go look it up. But the sun’s shining (!) so I’m going outside instead.)

02. February 2007 by Jill
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