Active Matrix LCD's use three electronic switches for each picture element, one for each of the colours red, green and blue, to maintain the field. The switch is usually a Thin Film Transistor -TFT- which isolates the pixel from the influence of adjacent pixels and so eliminates crosstalk. Addressing by transistors is advantageous because once a pixel is switched on, the field can be maintained by the switch until it is addressed once more. This allows faster LC material to be used, so that 'smearing' is no longer a problem. The production of TFTs is similar to those of semiconductor chips. The high number of rejections means high production costs making the price of those displays extremely unfavourable. (For example, to produce a display with a resolution of 1024 x 768, 1024x768x3 = 2,36 million transistors are required).
Obviously LCD's do not suffer from any distortions in linearity or geometry, as every pixel, composed of the colours red, green and blue, is situated in a fixed position.

According to the technology used you have to expect the following restrictions:

Missing Dots

Smearing when using fast changing videos and motion pictures

Irregular lightning from the backlight