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History of TFT LCD
Liquid crystal was discovered
by the Austrian botanist Fredreich Rheinizer in 1888. "Liquid crystal"
is neither solid nor liquid (an example is soapy water).
In the mid-1960s, scientists
showed that liquid crystals when stimulated by an external electrical charge
could change the properties of light passing through the crystals.
The early prototypes (late
1960s) were too unstable for mass production. But all of that changed when
a British researcher proposed a stable, liquid crystal material (biphenyl).
Today's color LCD
TV's and Monitors have
a sandwich-like structure (see figure below).
What
is LCD Technology?
LCD
stands for Liquid Crystal Display. This technology has been around
for a number of years but is finally able to deliver fast motion
video quality flat panel displays. The thin and light form factor is attractive
to consumers. While the panel (the set itself) looks thin, the technology
inside is quite extensive.
An
LCD monitor is made up of pixels (picture elements). Pixels are individual,
distinct, points of light. Each pixel is made up of sub pixels consisting
of red, green and blue. Together the red, green and blue sub pixels
combine to form a single color picture element. A panel's resolution
is determined in part by how many pixels there are. A display can
have hundreds of thousands of points of light (pixels) to millions
of points of light, depending on the resolution.
Learn
more about LCD TV - What is TFT LCD?
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