August 10, 2007, Newsletter Issue #25: How LCD TVs Work
Tip of the Week
Unlike other kinds of televisions, LCD TVs (and all LCD displays, which probably include the monitor on which you're reading this) have separate systems for producing light and color. That means you'll never have to worry about burn-in on your screen, no matter how long you play the same game or leave the program-guide channel on. A fluorescent panel behind the liquid crystal display produces light. This is the part of your TV most likely to need replacing later on. On top of the light are liquid crystals and tiny electrodes. The crystals and electrodes work together to block the light from shining through where it doesn't belong. On top of them, a layer of color filters produces the required colors in your picture. Glass plates and polarizing filters form a sandwich to hold all this in place and keep the display looking great.
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