LED display / LCD display, what exactly is the difference?

Question

What is a LED display? What is the difference between LED and LCD? If there is a difference, which is better to have on a laptop?

Answer 1

LED displays are LCDs that use Light Emitting Diodes (LEDs) as backlighting.



Before LED-backlit LCDs came onto the scene, backlighting (providing illumination to the LCD screen) was done with incandescent lamps, CCFL lamps, etc.



The chief advantage of LED-backlit displays is that they use less power, so for a laptop an LED display is a good choice because it will give you longer battery life.



Hope this helps.

Answer 2

Hi Mike, 1. What is the difference between LCD and LED TV'S? 2. An LED TV is like an LCD TV, but much slimmer, runs on less power for screen display, and is brighter than LCD. It does however, suffer some of the same problems as LCD, such as a blurr on fast moving objects. LED's are also pricy right now, just like an LED light bulb.! One of my pet peeves with LED is it's poor off-center viewing..On a good LCD or plasma, you have a large viewing angle. With LED, it definitely is only about 30 degrees off center before the color and brightness fall off. That would keep me from buying one. 3. They are both LCD's. Standard LCD's have a CCFL(Cold Cathode Fluorescent) bulb for a backlight. LED LCD's have LED(Light Emitting Diode) for a backlight. 4. LED backlights have a advantage over CCFL because the use 40% less energy and can be locally dimmed or turned off to help with black levels. CCFL bulbs can only be slightly dimmed and never turned off! This is why LED LCD's have higher contrast ratios. Higher contrast ratios equal blacker blacks, whiter whites & more rich looking colors! 5. LG, for one, is entering the market cautiously, worried that consumers won't be willing to pay the price premiums. Cold cathode fluorescent lamp or CCFL-lit LCD TVs continue to drastically drop in price, LED-based models are often between $200 and $700 more for same-sized models. But Samsung, the world's number HDTV maker and an aggressive pursuant of LED TVs, says consumers will pay for quality. And that's what LEDs promise. Typically LED TVs are roughly a third thinner than CCFL models, offer more picture contrast and color range, last longer and consume up to 40% less energy. 6. LED-backlit LCDs are where TV's future and present meet—they're the best LCDs you've ever seen, but they're not as stunning as OLED displays, which will one day dominate all. They're not cheap, but they're not ludicrous either. Most importantly, they're actually here. So It's a matter of individual's choice to select irrespective of the pries OK..

Answer 3

Light

Emitting

Diode

..........has no back light as it is not required ( lighter )

Liquid

Crystal

Display

...........needs a back light (heavier)

the choice is yours