Television screen question?

Liquid Crystal Display, or LCD TVs use a florescent backlight to send light through its liquid crystal molecules and a polarizing substrate. LCD TVs work passively, with red, green and blue pixels. By applying voltage to the pixels using a matrix of wires, the pixels can be darkened to prevent the backlight from showing through. Many LCD displays double as computer displays by allowing standard analogue VGA input, a great option if you need your display to pull double duty as a PC monitor to save money and space. Nearly all LCD TVs offer flexible mounting options including walls or under cabinets.

Plasma screens are basically a network of red, green and blue phosphors (each triad makes up a single pixel) mounted between two thin layers of glass. Plasma screens use a small electric pulse for each pixel to excite the rare natural gases argon, neon and xenon used to produce the color information and light. As electrons excite the phosphors, oxygen atoms dissipate and create plasma, emitting UV light. These rare gases actually have a life and fade over time.

Here’s the cool part: because all the phosphor-excited pixels react at the same time, there is never any flicker apparent to the viewer. There’s also no backlight and no projection of any kind, so the light-emitting phosphors, result in a bright display with a penchant for rich color and a wide viewing angle.

Plasma screen is a screen looks picture from everywhere of the room and very costly,while lique crist al display with some measurement.