LED, LCD and OLED what you should know before you buy.
Many people find it difficult to decide on which TV and which option is right for them. Here Ill
give a break down to hopefully unravel some of the mystery behind the "latest and greatest" in
TV tech. This will allow you to make informed decisions based on facts and not just the latest buzz
word or titles.
So todays market place for Televisions basically boils down to three types, LCD, LED and
OLED. Plasma has pretty much fallen my the wayside. So lets begin with LCDs. Now both LED's
and LCD's have the same type of screen. The main difference being the light source behind each one.
While the LCD is lit by a handful of small cfl lamps The LED is lit by many LED's or Light Emitting
Diodes. The main advantage goes to the LED simply because specific LED's can be independantley
turned off and there for giving a greater contrast ratio. Read more about Contrast ratio in
our article "Contrast ratio does it matter and what is it Really". Now LED TVs use LED's as a
backlight to an LCD screen giving darker blacks and a greater contrast ratio. In most cases giving a
better overall picture.
Finally we come to the OLED. Now these vary quite a bit from our first two choices.
For starters the screen is made up of an organic film which is used in the LEDs and then this film is
placed between semi conductors. The new OLED's the screen is all LED's not just back lighting like
LED. This allows each pixel to be turned on or off giving you theoretically an infinite contrast ratio.
So what does all this mean for me you ask? Well for overall picture quality the LED is the best
bang for your buck. Why you might ask with all the audio/video people so excited about OLED ? Its
simple. The OLED's give off the truest blacks which basically means the greatest contrast ratio which
translates to the best overall picture quality. there are a few factors like the 4K aspect vs the 1080p
issue that are being used as sales pitches and as of today have limited capability. We will discuss this
further in our article "4K TVs are they worth the extra investment? " Also for many people the price
difference for 4K OLED can be off putting.
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