Replacing Television R.g. Iyer
We probably use items
containing an LCD (liquid crystal display) every day. They are all around us --
in laptop computers, digital clocks and watches, microwave ovens, CD players
and many other electronic devices. LCDs are common because they offer some real
advantages over other display technologies. They are thinner and lighter and
draw much less power than cathode ray tubes (CRTs)
But just what are these things called liquid crystals? The name "liquid
crystal" sounds like a contradiction. We think of a crystal as a solid
material like quartz, usually as hard as rock, and a liquid is obviously
different. How could any material combine the two?
What is LCD technology?
There are three common states
of matter: solid, liquid or gaseous. Solids act the way they do because their
molecules always maintain their
orientation and stay in the same position with
respect to one another. The molecules in liquids are just the opposite: They
can change their orientation and move anywhere in the liquid. But there are
some substances that can exist in an odd state that is sort of like a liquid
and sort of like a solid. When they are in this state, their molecules tend to
maintain their orientation, like the molecules in a solid, but also move around
to different positions, like the molecules in a liquid. This means that liquid
crystals are neither a solid nor a liquid. That''s how they ended up with their
seemingly contradictory name.
Typical specification of 42 size LCD TV
42" 16:9HD capable monitorNew! IP Solution CapableNew! Narrow Bezel (29mm)1366 x 768 (WXGA) Display ResolutionConvenient External Speaker-outPortrait-capable Mode1600:1 contrast ratio450 cd/m2 brightnessHDMI™ InterfaceSuper IPS™ 178 degree Viewing AngleOSD and Remote Control LockRS-232C ControlDigital (HDMI/DVI) / Analog (RGB) / Component1,2 / AVSplit Zoom (Self Video Wall, Max 4
x 4)Discrete IR codes
So, do liquid crystals act like solids or liquids or something else? It turns
out that liquid crystals are closer to a liquid state than a solid. It takes a
fair amount of heat to change a suitable substance from a solid into a liquid
crystal, and it only takes a little more heat to turn that same liquid crystal
into a real liquid. This explains why liquid crystals are very sensitive to
temperature and why they are used to make thermometers and mood rings. It also
explains why a laptop computer display may act funny in cold weather or during
a hot day at the beach.
For the last five years there were just
two top multinational electronics brands — LG and Samsung. Now, Japanese brand
Sony has also emerged as a large player in the Rs 24,000-crore Indian
electronics & durable market. It has pipped Onida to emerge
as the third largest colour
television(CTV) brand in the country by value of sales, a position that Onida
has been holding on to for years.
There’s a possibility of drastic price
reduction in next 3 – 5 years. So,
people will go in for LCD TVs and ordinary television will become outdated over
the period 10 years.
Waiting to buy that slick LCD TV to adorn
your living rooms but have restrained yourself so far because of the steep
prices? Heave a sigh of relief and strike a deal during Christmas.