> The effect could be prevented almost completely (as perceived by the naked eye) > with today's technology by applying power to a cell on top of the pixel, where > applying power would darken the cell
That is how all lcd displays work anyway.
Strobing the backlight is quicker, although it will be interesting to see how many people are sensitive to it. I had a mild intolerance to DLP displays, but I know some people can't cope with them at all.