LCD Overdrive: This kind is bad

There’s a lot of issues that still bedevil LCD and related TV formats (blurring, color reproduction, blacks just to name a few), but now the site bit-tech.net have written an article about one of the dark secrets of LCD TV’s that some manufacturers employ called “overdrive”. And this isn’t the good kind of overdrive.

This technique artificially boosts response times by pushing up the voltage that make the liquid crystals change “states”, thus updating the image onscreen. It does make the response time better without a lot of extra engineering, but like many shortcuts it has a downside, namely a nasty thing called “inverse ghosting.”

While many with average eyesight probably won’t see the issue clearly, if at all, once you see it, it’s there and you can’t ignore it. The article here gives lots of details and pictures, and explains the issue in detail. It’s something to look for when you buy your next LCD TV perhaps.