TV Technologies

LCD: Liquid Crystal Display

Definition/Overview:

A LCD TV panel uses pixels made of liquid crystals that produce light and color when electric current is applied to them and a backlight passes through. The liquid crystals don’t generate their own light, which is where a backlight becomes necessary.

TV Resolution

Number of distinct pixels (image dots) that can be displayed in the TV display set. The number of pixels is typically expressed like a width x height dimensions number. This number represents the number of vertical vs horizontal pixels that are on display.

Refresh Rate

The TV Refresh Rate describes the frequency at which a video screen updates per second; a high refresh rate gives you a smooth, natural-looking motion. The refresh rate originates with early film, when movie projectors ran at 24 frames per second, with shutters allowing projection of 48 frames a second (each image showed twice), or 48 hertz (Hz). Traditional, tube televisions delivered a 60 Hz or 50 Hz refresh rate.

Motion Clarity

Most of the Refresh Rate references by TV manufacturers exist to convince buyers to get a new TV set, with different brands coming up with different terms to refer to their model's TV Refresh Rate and individual Motion Blur solution. The "Refresh Rates" you see on marketing campaigns from different brands are not complete fabrications. Each company uses a simple, though dubious, method to determine and make refresh rate claims.