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LCD vs CRT Pros and Cons (A Quick Overview)
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This article provides a birds eye view of the differences between CRT and LCD computer display technologies.

MAJOR ADVANTAGES OF LCD (Pros of LCD, Cons of CRT)

 

CRT

LCD

Slim Factor

Bulky, the back size is proportionate to the size of the monitor

LCDs are much slimmer than their CRT counterparts. This slimness brings along a host of advantages such as space saving and portability.

Viewable screen

The viewable area is always about 0.9 - 1.1 inch smaller than the size specified on paper. This is due to the frame around the glass screen.

So a 15" CRT would have only about 14" of viewable area.

A 15 inch LCD always has a same size of viewable area as the specifications say.

Larger displays may have their viewable area reduced by at most 0.1 inches.

Screen Flatness

Many manufacturers tout true flatness for their CRT monitors, but the sad truth is that most are fake.

In reality it is only the outer glass that is flat, and not the actual screen. The true 100% perfect flat monitors are the aperture grille tubes made by Mitsubishi and Sony.

Even then, these tubes have a disadvantage - a faint thin line or two (Depending on size) running through the screen to stabilize the grill.

Some people find this distracting, especially if you work on a light background (eg. documents) most of the time.

100% ninety degrees true perfect flat screen

 

Radiation

CRTs emit electromagnetic radiation. Much of it is filtered by the lead heavy glass front and the rest that reaches your eyes are mostly harmless.

Even then, radiation still passes through the screen and some people regard them as hazardous.

LCDs emit a very small amount of radiation compared to CRTs. Health conscious consumers prefer them for this one reason.

Weight

CRTs weigh heavier, especially in their front (the display area)

17 inch CRT weighs around 16kg.

19 inch CRT weighs around 20kg.

LCDs are very light, hence being portable.

17 inch LCD weighs around 6kg.

19 inch LCD weighs around 7kg.

Power Requirements

Higher power usage, more than 200% to an LCD of equivalent size.

17 inch CRT requires around 90 watts

19 inch CRT requires around 110 watts

Considerably lower power usage.

17 inch LCD requires around 35 watts

19 inch LCD requires around 45 watts

Glare

Glare is reduced by the use of special filters and treated glass.

Little or no glare

Display Sharpness

Slightly less sharp images - but it is noticeable when comparing with LCDs

Sharp (when used at native display resolution)

Automatic Resize

Newer CRTs come with a Auto-Fit feature, but unfortunately it does not work well and requires micro adjustments to fill the screen

Hit the Auto button, and the display resizes to fit every pixel within its viewable area.

Burn-In

Suffers from burn-in problem.

If displaying a same image for a prolonged period, it could be embedded in the display permanently.

LCDs are free from the burn-in issue that plagues CRTs and Plasma displays.

However, they do occasionally have Image Persistence problems which can be fixed by switching off the LCD for an extended period of time.

Refresh Rate (Screen Flicker)

A minimum of 75hz is required for a flicker free image. All CRTs already support this, except at ultra high resolutions 2048++.

LCDs do not "paint" their image. They provide a flicker free image every time.

Warmness

Back gets noticeably warm after some time

Little

MAJOR ADVANTAGES OF CRT (Pros of CRT, Cons of LCD)

 

CRT

LCD

Dead / Stuck Pixel

There is no such problem in CRTs as images are painted on the screen.

LCD panels are prone to dead or stuck pixels (or dots) on the screen due to their manufacturing process.

However, stiff competition has made many manufacturers adopt zero dead pixel / stuck pixel warranties for their products.

Response Time

CRTs already have a very fast response time hence this attribute does not apply to it.

This attribute is specially for LCDs as the lower the response rate is, the better the chance of avoiding "ghosting" effect.

Price

Affordable and cheaper than LCDs due to their declining popularity.

17 inch CRT costs around $160

19 inch CRT costs around $225

Considerably more expensive, but prices are dropping fast.

17 inch LCD costs around $275

19 inch LCD costs around $330

Native Resolution

Can be used at any resolution up to the maximum supported. No image quality is lost at any resolution.

Must be used at its native resolution (maximum resolution) for best quality. Using the display at a lower resolution will result interpolation (scaling of the image), causing image quality loss.

This is one of the major reasons for CRTs being in use by gamers as the high native resolution that LCD demands may not deliver smooth frame rates.

Max Colors

32 bit

8-Bit max, 16.7 million colors.

Viewing Angle

Wide viewing angle

Narrow viewing angle, depending on technology employed.

Video

Ideal for any video including HD

Not ideal for Standard Definition videos, but great for High Definition videos

Blackness

True Black

Between Dark Gray to Gray

Summary

Pros of LCD vs Cons of CRT

 

LCD

CRT

Slim Factor

Slim

Bulky

Viewable screen

Full or very close

Usually 0.9 inches or less than actual size

Screen Flatness

True Flat

Fake Flat (unless aperture grille)

Radiation

Little or none

More Radiation

Weight

Light

Heavy

Power Requirements

Low Power requirement

250% or more power

Glare

No Glare

Reduced Glare

Image Sharpness

Sharp

Slightly less sharp images

Automatic Resize

Perfect

Imperfect

Burn-In

None

Suffers from burn-in problem

Refresh Rate

No refresh rate (60hz fixed)

Needs refresh rate (minimum 72hz)

Warmness

Little

Back gets warm after some time

Pros of CRT vs Cons of LCD

 

CRT

LCD

Dead / Stuck Pixel

No such problem

May have dead / stuck pixel

Response Rate

No issue with response rate

Slow

Price

Cheap

Expensive

Native Resolution

None

Has a native resolution

Max Colors

32 bit

8-Bit max, 16.7 million colors.

Viewing Angle

Wide viewing angle

Narrow viewing angle

Video

Ideal for any video viewing including HD

Not ideal for videos, unless HD

Blackness

True Black

Between Dark Gray to Gray

This document is Copyright(©) 2001-2008 by G.Ganesh. Visit Bootstrike.Com (http://bootstrike.com). Figures were compared using a typical 19 inch LCD (Viewsonic VA926) and 19 inch CRT (Viewsonic G90F).

Last Updated 1st Feb 2008.

30 comments RSS of last 10 posts

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Willy (1 posts) Willy Seriously looks like a Windows bashing Linux, or visa-versa. Most of the facts where so outdated, at the time this comparison was written, that it isn't even funny. LCD only had 8bit color, in 2008? More like 16. But don't take my word for it, Google is your friend!
posted 13 Dec 2013 - Reply - Permanent Link
Unregistered Anonymous You should really make sure the comparisons at the bottom always list CRT on the same side, currently you're switching between left and right, which makes for a very confusing read. Fix that and it'll be much better.
posted 7 Jul 2013 - Reply - Permanent Link
Unregistered Anonymous I have read this article ..... a good one... but i have also found some interesting material at

http://freefeast.info/general-it-articles/difference-between-crt-and-lcd-crt-vs-lcd/

regarding CRT Vs LCD.... Thought you people might like it...
posted 17 Jul 2012 - Reply - Permanent Link
Unregistered Anonymous I made my little research. What I found out is that brainwash marketing confuse people more than the technology itself!. CRT TVs are good with Freeview digital box work fine. But now marketing encourages to buy LED over LCD, the same marketing told us LCD far better than CRT. The difference between LED and LCD: one uses bulbs one uses fluorescent light But huge price gap!. The same applies to smart phones people brainwashed into consumerism, most people don't need sophisticated smart phones just need reasonable mobile phone can call/text maybe a bit of extras like camera, bluetooth, etc
posted 22 Apr 2012 - show 1 replies - Reply - Permanent Link
Unregistered Anonymous Brainwash is right. LEDs have been here how long now, and the market has to pretend that LCDs and fluorescents are better than CRTs just to get the consumers to buy them so we have to buy them all over again in a LED solution? It's all part of a planned progression scheme. The fact is this: CRTs were the green solution, because unlike the LCDs, they only had to be manufactured ONCE to work for at least 30 years verses LCDs which I had to replace every three years. So typical for the baby-boomers to believe every bit of nonsense that's out there. By the way, I dropped my lap top 3" off the ground and the LCD broke! Meanwhile, I've hit my CRT television several times and it still works, it also was in a flood and still works, my house was broken into and it's still there: they couldn't carry it on their tweaker bike.
posted 17 Sep 2012 - Reply - Permanent Link
Unregistered Anonymous In one table it says LCD gives a wide viewing angle compared to CRT, yet in another table it says the opposite.
How can they each be both comparatively wide and narrow?
I just don't get it, so in fact is the last table totally wrong? an unbelievable error!
Is a LCD viewing angle wide? please can anyone answer yes or no from the tables.
posted 7 Apr 2012 - Reply - Permanent Link
Unregistered Anonymous Great article. You just forgot about a very big advantage in CRT screens which is their durability and robustness. like if I accidentally hit my CRT TV, I will hurt myself. I I accidentally hit my LCD TV I will brake it...
posted 21 Mar 2012 - Reply - Permanent Link
Unregistered Anonymous Learn how to read. "Last Updated 1st Feb 2008". Of course information is NOW incorrect. Stop skim reading and ignoring BOLD words you tools.
posted 22 Dec 2011 - Reply - Permanent Link
Unregistered Anonymous Lots of these are untrue: 1st- Power consumed- Yes CRT can take more current at startup but it consumes as much or even less power than LCD when in darker scenes. LCD's lamps are always on and therefore consume the same current all the time, while CRT fluctuates.
2- 'Image sharpness is less than LCD' This is untrue. A CRT monitor can be much more sharp than a LCD monitor, and that at all resolutions supported. This all depends on CRT quality... and these days CRT quality is poorer and poorer with low tube quality control.
3- Radiation- You'd be surprised at how much real radiation is being output. Using a detector.. you have to be at 1 inch of the screen to detect radiation.. just by comparison the detector detects a microwave running at 20 feet.
posted 1 Oct 2011 - Reply - Permanent Link
SmackBob (1 posts) SmackBob No one adopted a 0 dead pixel policy. A summary of inquiries for most manufacturers can be viewed on intend dot ro, bottom RMA, then TFT somewhere on that page. Only a select few have a 1 pixel tolerance, the rest no RMA unless it's over 3 dead pixels.
posted 21 Sep 2011 - Reply - Permanent Link
Unregistered Anonymous Without the lcd, we would have no laptops. My father was working on a computer in a suitcase back in 1981 and I said what will you use for a monitor, he said "These will be for businessmen and they will plug into a pay monitor at airports or wherever they will be installed". I said to him that It'll never fly. What his idea was, is the modern laptop computer, if it weren't for the monitor issue he could have died a billionaire.
posted 27 Aug 2011 - Reply - Permanent Link
Unregistered Anonymous The colour information is kind of wrong ...
The CRTs are usually considered to be 24bpp (8 bits for each RGB component), and most of Tthe LCDs are 18bpp (only 6 bits per RBG component).
posted 26 Jan 2011 - Reply - Permanent Link
Taizo (1 posts) Taizo I love my CRT monitors. The only reason I use a flat screen is because 1: I own a laptop. And 2: My desk has trouble fitting a larger CRT.

I tell you though, the picture on my Macintosh SE's monitor is so crisp after degaussing.
posted 24 Jan 2011 - Reply - Permanent Link
Unregistered Anonymous The last 8 bits are for alpha.
posted 5 Nov 2010 - Reply - Permanent Link
Unregistered Anonymous lcds are better!
posted 26 Jul 2010 - Reply - Permanent Link
ImageProcessor Unregistered Anonymous My Iiyama 450 (CRT) just broke. I'm now stuck with a Samsung SyncMaster 2494HM that is supposed to be modern, better etc. but in my eyes LCD is a disaster. Fonts look jagged, even in native 1920x1080, colors are ugly, viewing angle is important. I cannot understand how people can live with this: an image with variable quality when you move your head. I now start to realize what a fantastic CRT I had for seven years. I hope organic leds are going to help me out.
posted 17 Apr 2009 - show 1 replies - Reply - Permanent Link
Admin Administrator Admin I am actually now using a 26" Sony LCD TV from a 19" CRT due to LCD Monitor's ultra high native resolution. My personal experience with Samsung LCD TVs are not that good. You may want to try other brands.
posted 18 Apr 2009 - Reply - Permanent Link

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