LCD Versus Plasma HDTV

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To deal with this basic LCD technology limitation, and that of your conservative brain, most new LCD sets feature increased refresh rates; doubling the older sets 60 different frames a second (60Hz) to 120 frames a second (120Hz). Your eye apparently enjoys doing these kinds of illusory tricks, like making all the gay marriage leaning planks in the party platform look straight.

This fast motion LCD fix comes in several marketing flavors. JVC has its Clear Motion Drive, Sharp its FineMotion Advanced sets, and the Philips Pixel Plus sets create (interpolate) new made up frames. Interspersed frame images between static LCD video frames can render the fast action more smooth and seamless. But, each LCD scheme’s respective success depends on your particular brain’s wiring, so expect an argument with the spouse.

JVC 52" 120Hz 1080P LCD with Clear Motion Drive III (LT-52X899)

Another 120Hz visual trick is to have every other interpolated frame go completely black; a technique used by Sharp in some of its low-end LCD sets. As in politics, making your easily fooled brain happy is relatively straightforward.

Another way to fool you is to flash the LCD backlight, like Philips does with its 120Hz Perfect Pixel/Ambilight (Crystal Clear) sets. Flashing creates the mental illusion required to achieve perceived smooth motion during rapid on screen action.

BTW, using 120Hz is not really necessary in either the Philips’ flashing backlight or Sharp’s interpolated black frame scheme to get good results. And even if the LCD’s response rate were 0 milliseconds, you would still have the always on pixel issue to contend with.



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