difference between crt and lcd monitors pricelist

If you are looking for a new display, you should consider the differences between CRT and LCD monitors. Choose the type of monitor that best serves your specific needs, the typical applications you use, and your budget.

Require less power - Power consumption varies greatly with different technologies. CRT displays are somewhat power-hungry, at about 100 watts for a typical 19-inch display. The average is about 45 watts for a 19-inch LCD display. LCDs also produce less heat.

Smaller and weigh less - An LCD monitor is significantly thinner and lighter than a CRT monitor, typically weighing less than half as much. In addition, you can mount an LCD on an arm or a wall, which also takes up less desktop space.

More adjustable - LCD displays are much more adjustable than CRT displays. With LCDs, you can adjust the tilt, height, swivel, and orientation from horizontal to vertical mode. As noted previously, you can also mount them on the wall or on an arm.

Less eye strain - Because LCD displays turn each pixel off individually, they do not produce a flicker like CRT displays do. In addition, LCD displays do a better job of displaying text compared with CRT displays.

Better color representation - CRT displays have historically represented colors and different gradations of color more accurately than LCD displays. However, LCD displays are gaining ground in this area, especially with higher-end models that include color-calibration technology.

More responsive - Historically, CRT monitors have had fewer problems with ghosting and blurring because they redrew the screen image faster than LCD monitors. Again, LCD manufacturers are improving on this with displays that have faster response times than they did in the past.

Multiple resolutions - If you need to change your display"s resolution for different applications, you are better off with a CRT monitor because LCD monitors don"t handle multiple resolutions as well.

So now that you know about LCD and CRT monitors, let"s talk about how you can use two monitors at once. They say, "Two heads are better than one." Maybe the same is true of monitors!

CRT stands for Cathode Ray Tube and LCD stands for Liquid Crystal Display area unit the kinds of display devices wherever CRT is employed as standard display devices whereas LCD is more modern technology. These area unit primarily differentiated supported the fabric they’re made from and dealing mechanism, however, each area unit alleged to perform identical perform of providing a visible variety of electronic media. Here, the crucial operational distinction is that the CRT integrates the 2 processes lightweight generation and lightweight modulation and it’s additionally managed by one set of elements. Conversely, the LCD isolates the 2 processes kind one another that’s lightweight generation and modulation.

In the past, CRT monitors were the only choice for desktop systems, while LCDs were built into laptops. By the late 1990s, people could choose between the two. As technology has improved, it"s actually become more difficult to buy new CRTs, while flat screens have become the standard. Although LCDs were once quite expensive, prices have dropped considerably. CRTs still have pros, however, including clarity and reliability.

The traditional CRT monitor resembles a television set and uses the same technology. They have many pros: they are inexpensive, dependable, have good clear pictures and can be viewed from any angle. Unfortunately, they are also heavy, have a large footprint, aren"t environmentally friendly, and emit a fair amount of low-frequency radiation thought to be unhealthy.

As the technology improved, however, LCDs improved in all areas with sales overtaking CRTs in 2003. Even with these improvements, arguments continue that CRTs remain better suited to graphics professionals and to those who require consistent color regardless of viewing angle. Video editors, game developers or anyone who works with fast moving images in a professional capacity might also prefer a CRT, though it seems safe to assume diehard devotees have shrunk over the years. The remaining draw for the older technology is cost, appealing to those on a budget or to those who only use their computers infrequently, as a used CRT can be picked up for next to nothing. The price for new LCDs has dropped dramatically in recent years, however.

Nevertheless, the contest between the two is over for most. LCD monitors have extraordinary color and graphics with much crisper text and a screen that is easier on the eyes, reducing strain and headaches that sometimes accompanied long hours on a CRT. They are also great for long hours in text-based applications like word processors or spreadsheets, and they don"t require anti-radiation screens.

Choosing a model with a wide viewing angle effectively eliminates "wash out," while faster response rates have eliminated ghosting. With reduced eyestrain, great color, and virtually no fading or ghosting, a good LCD is a great choice for the whole family. Whether gaming, putting together a family photo album, surfing, doing homework or writing out proposals for work, the LCD will take up less space while using less electricity and emitting less radiation.

Because of its many advantages, LCDs have essentially overtaken CRT technology. Aside from graphics professionals, deciding between an LCD or CRT today might apply best in nations or regions where digital displays are scarce and the application requires the least expensive option, like in rural schools or non-profit and humanitarian aid organizations in third world nations. In these cases, the dutiful CRT will serve well and may be purchased inexpensively.

People who are interested in purchasing an LCD monitor should note that standardization in specifications is lacking. A viewing angle might actually be greater than advertised, or narrower. Response rates can also vary from manufacturer to manufacturer, so a direct comparison between different models can be misleading when judging from specs alone. Shoppers may find it helpful to read reviews from people who already own the product, along with professional reviews.

As of July 2021, CRT monitors are no longer in production. Even if you managed to get a used CRT monitor, there is a issue of connecting it to your system as newer PCs/notebooks come equipped only with HDMI and/or DisplayPort display ports. However, this can be worked around using HDMI to VGA adapters.

The viewable area is 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.

17 inch LCD has 17 inch viewable. 24 inch LCD has about 23.8" viewable depending on model. Slightly less viewable as sizes go bigger, but not as severe as CRT.

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 white background (eg. documents) most of the time.

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.

CRTs weigh heavier, especially in the front (the display area) 17 inch CRT weighs around 16kg. 19 inch CRT weighs around 20kg.

Higher power usage, more than 400% compared to an LED backlight LCD of equivalent size. 17 inch CRT requires around 90 watts 19 inch CRT requires around 110 watts

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.

LCDs do not "paint" their image. They provide a flicker free image every time. However, games and fast moving videos benefit from a higher refresh rate monitor by appearing smoother

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.

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. For this reason, gamers should avoid buying a monitor too high a resolution (e.g. 4K) as you will need more processing power (and more fan noise) to run the game in native resolution. As of 2021, we recommend 1920 x 1080 monitors when paired with recent GPUs/processors.

As CRT monitors are no longer manufactured, LCD monitors are the only way to go. Our recommendation is to go for a LED backlight LCD monitor that has a native resolution of 1920 x 1080.

Currently I am using a curved 31.5 inch 1920 x 1080 G-Sync 144hz monitor - the Acer Predator Z321 Qbmiphzx. It was bought from Amazon UK but it is no longer available as of July 2021. My reason was that it was the biggest G-Sync monitor I could get for 1080p resolution as I did not want Windows to scale font sizes (but I still had to anyway). Before this I was using a 26" Sony LCD TV as a monitor for its 1360 x 768 resolution.

I don"t really like LCD"s, I prefer Old CRT TV"s because it works better with my VCR, and old video gaming systems, with LCD it has the VHS tapes have black bars at the sides and same with the video games. Ssame with my grandson (who is currently 12), so we switched back to our 25 inch CRT zenith Televison and everything went smooth, my grandson enjoys it too.

I have a CRT TV and used to have a LCD HDTV and I think I liked both but I had huge problems with an LCD TV because the screen broke easily and I called up to repair it but my warranty has expired and unable to repair my TV. So I bought another TV and its a Samsuck LED LCD TV and same sh*t happens again. So I give up and used my Old CRT TV left in the storage and I have no problems with this thing. So in conclusion I think CRT TVs are bit better then LCD but I liked LCD because it has HD 1080p and I can save up some space on my table to put stuff on it.

I have both CRT and LCD, but prefer CRT because ic an play at lower resolution (but with AA) this requires less powerfull videocard. Also i like to play old games that have low resolution. LCD displays look crappy whenusing low resolution

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!

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.

actually most LED/LCD tvs are 8 bit panels and then some use 8bit+Frc (pseudo 10bit) then the best we have out in 2019 ATM is a true 10bit panel no 12 bit panels out yet not even the best dolby pulsar is 12 bit....but all that being said the only 10 bit color space format is HDR or HGL and Dolby vision even bluray are only 8bit so it"s pointless before

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

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.

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...

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.

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.

Distinguish, differentiate, compare and explain what is the differences between CRT and LCD Monitor. Comparison and Difference. As the technology has improved and the prices have come down, LCD (Liquid Crystal Display) monitors have rapidly been replacing CRT (Cathode Ray Tube) monitors on desktops around the world. ComputerWorld first reported that LCD sales would surpass CRT sales for the first time in 2003, a lead that it didnt hold for good. But according to DisplaySearch, a flat panel display market research and consulting company, the sales of LCD monitors regained the lead over CRT sales in the third quarter of 2004, a lead that it should eventually hold for good.

The poor cathode ray tube (CRT), when placed next to a flat-screen model, looks bulky and archaic. However, in spite of initial appearances, CRT is still a dominant force in the monitor marketplace - although LCDs are creeping up the adoption chain.

Reon Coetzee, marketing manager at Rectron, debates the viability of CRT when compared to LCD, highlighting benefits offered by both technologies, while also making some predictions for the future.

Today, there are many advantages to living in a flat-panel world. First - and most obvious - is that these monitors take up significantly less space on your desk.

Second, flat panels require less electricity than CRTs (cathode ray tube). A 19-inch CRT uses approximately 120 to 130 watts of power, while a similar-size LCD (liquid crystal display) uses only 50 to 60 watts.

But, does this mean that CRTs are going the way of the Dodo? I think it`s debatable - these bulky workhorses still account for more shipments than their flat-screen counterparts and many users - especially in SA - are still not ready to replace them just for the sake of a sleeker-looking working environment.

Although LCD prices have plummeted globally as well as locally, CRTs are still less expensive, which is a differentiator if you`re working on a tight budget.

According to a recent report by research authority Gartner Dataquest, LCDs - although prices are more competitive - are still more expensive than CRTs.

In addition to the price, CRTs also have some performance benefits. Analyst group, IDC comments that LCDs suffer from poorer refresh rates and do not offer as much flexibility in terms of resolution settings.

CRTs provide better contrast and colour saturation and change easily from their "native" resolutions, without the text becoming blurred, as in the case of LCDs.

These monitors are also well suited for number of specific applications such as video editing and display, high-end gaming and some graphics programs.

In terms of safety, a flat panel is just far more superior. Virtually no radiation is emitted, and reduced glare and flicker translate into less eye strain.

But importantly, LCDs have a longer lifespan. The backlight is usually the first thing that fails in time, and current backlight technology is somewhere between 40 000 and 50 000 hours, roughly twice the operating life of a CRT.

This inconsistent pricing can largely - and obviously - be attributed to the various monitor manufacturers. Some monitors offer image qualities that are better than others, while some have additional features such as television tuners and onscreen controls.

So, if you`re going to be irritated by defective pixels, usually found on cheaper monitors, rather opt for an expensive device that offers more features at higher quality.

Currently, vendors are launching technologies to compete with flat-screens and CRTs - these have, however, not matured enough to pose any real threat.

Another closely watched technology is organic light emitting diodes (OLEDs), which in theory make screens brighter, cheaper, lighter and thinner than anything currently on offer.

Says IDC: "An innovative technology is great for conceptual theory and making waves in the press, but it takes a significantly long time to perfect the concept and arrive at a realistic price point for consumers."

What is boils down to, therefore, is that CRTs and LCDs will in all likelihood coexist for a long time in a market that requires cost-effective and well-known technologies.

Computer monitors are central to the user experience when using a computer. Everything else can be in perfect working condition but if the monitor is not then you virtually have no computer to talk of. Most people use computers being totally oblivious of how there are several different types of monitors. In this article we shall be looking at 3 different types of monitors – LED, LCD and CRT monitors. LED stands for light emitting diode monitor, LCD stands for liquid crystal display monitor and CRT stands for cathode ray tube monitor. We shall be looking at what differentiates LED, LCD And CRT monitors. We will look at how they function and then we will cover their advantages and disadvantages. By doing that we will be showing the differences between LED, LCD And CRT monitors.

For the LED monitor there is a semiconductor diode which gives off light i.e. backlighting. When the light hits the screen, visuals are formed. There are basically 3 main configurations used namely, full array, edge lit and direct lit. For full array, the semiconductor diodes are evenly distributed behind the whole screen. For edge lit, they are situated at the back of the screen. For direct lie, they are put directly behind the screen.

The LCD screen is comprised of comprised of numerous pixels which can either be colour or monochrome. These pixels will be situated in front of a reflector or light source. Some of those components are glass plates, light crystals, a light source, a colour filter, electrodes, polarizing filters, and the display surface. The display works by having a liquid crystal fluid between two glass plates. The back glass is lined with a conductive film whereas the front glass is coated with the intended characters. Visuals are then displayed as a result of an electrical charge being applied in between the 2 glasses.

A CRT has a vacuum glass, electron gun, deflection plates, and phosphorous screen. The electron guns (situated at the back) emit electron beams which are channelled towards the front. The phosphorous screen then emits light when struck by those electron beams. That is how visuals get displayed on a CRT monitor.

When it comes to black hues on display, LEDs produce them exceptionally well. The LED produces excellent quality when displaying visuals. When you are viewing anything using an LED you will notice there are no flickers. This is a great feature that eliminates the possibility of getting eye damage or strain. Overall, in terms of display LEDs are superior to CRTs and LCDs. The CRT produces the best shade of black when display visuals. Generally it is best suited for displaying visuals in grayscale. The surface area of the LCD display is convenient for an enhanced viewing experience. LCDs can produce very high resolutions. LCDs cannot produce or display black and white images. When light is dim then image flickering can occur for LCDs. CRTs are characterised by flickers when visuals are being displayed.

An LED consumes significantly less power – especially when comparing to LCDs and CRTs. This is because the working mechanism of the LED does not require much electricity. LCDs come in second, after the LED, because they also consume not that much of electricity. CRTs consumer lots of energy especially in comparison to the LCDs and LEDs.

The design of LEDs does not employ the use of mercury. This is a good advantage especially in light of how important it is to use products that do not pose threats to environmental sustainability. LEDs exceed both CRTs and LCDs in this regard.

LEDs are also characterised by very dissipation of heat. This stems from the fact they do not use lots of electricity thus incidences of overheating do not occur. LEDs also transcend CRTs and LCDs since these two are found wanting on heating issues.

An LCD monitor is usually quite compact i.e. it tends to be slim and light weight. This makes it easy to carry it around and install it anywhere. LEDs also are usually slim and lightweight with CRTs being the biggest and heaviest of these 3 types of monitors.

LCDs do not emit high doses of radiation which makes them less likely to cause any health damages on people. CRTs emit electromagnetic fields and X-Ray band radiation that can be injurious to human health. LEDs can cause health issues such as photosensitive epilepsy and retinal damage. LCDs can lead to issues such as insomnia and fatigue.

The CRT monitor is durable thus can last quite long. LEDs and LCDs are very delicate types of monitors which require careful use because they are highly prone to damage. Their lasting long in use is heavily dependent on responsible use. However, LEDs have average lifespans of 50 000 hours or 15 years.

CRT displays are the cheapest of the three thus making them accessible to anyone. The LED is the most expensive of the 3 followed by the LCD. LCD prices can range from US$100 to US$200. LEDs can cost anything from US$1000 upwards – no wonder they are not within the reach of many.

The quality of the LCD display here is not consistent over time. Factors such as temperature and how long it has been in use have effects on its output. LCDs are highly susceptible to temperatures fluctuations. Very high temperatures or very low temperatures affect the smooth functioning of an LCD. A CRT can be easily affected by things like magnetic fields.

A CRT monitor has a fast response rate whereas the response rate for LCDs is very slow. LEDs have the best response in comparison to the other two. Response rates are a big deal to gamers mostly.   These are some of the key differences between LEDs, LCDs and CRTs monitors.

We all are familiar with the computer monitors. We spend time sitting in front of them for hours working, gaming or watching movies. A monitor is used to display the output of any computer system. A good display makes all the difference and no doubt enhances the user experience. The innovation in the display technologies has improved the quality of the display devices including monitors. Now the desktop computers are available with a variety of displays ranging from technologically obsolete CRT monitors to latest slim LCD, LED or OLED monitors.

A computer monitor, technically termed as visual display unit is an output device that presents the information from the CPU on the screen working as an interface between CPU and the user. A cable connects the monitor to a video adaptor or video card which is set up on the motherboard of the computer. The CPU (Central Processing Unit) sends instruction to the video adaptor telling what needs to be displayed on the screen. The video adaptor converts the instructions into a set of corresponding signals and sends to the monitor. Monitor contains a circuitry that generates the picture on the screen from the set of signals.

The major parameters that measure the performance of a monitor are luminance, contrast ratio, resolution, dot pitch, response time, refresh rate and power consumption. The common problem that arises in monitors is dead pixels, blurred screen, phosphor-burn, etc.

which were the boxy Video Display Terminals (VDTs). VDTs were monochrome monitors which used CRT (Cathode Ray Tube) technology. They were capable of working with any type of computer by connecting through a serial interface.

IBM’s CRT– IBM launched its first computer also known as a ‘three piece computer’ in 1981. It had three different units – CPU, monitor and keyboard separately. By 1984, IBM introduced the new CRT monitor with enhanced Color Graphics Adaptor (CGA) with 16 colors and a resolution of 640 x 350 pixels. In 1987 IBM started offering the Video Graphics Array as part of its new PCs which allowed 256 different colors and a resolution of 640 x 480 pixels.

XGA and UXGA– A new technology named Enhanced Graphics Array or XGA was introduced in 1990 which allowed 16.8 million colors with a resolution of 800 x 600 pixels. The new monitors were now offering true colors that matched the human eye (human eye can detect 10 million different colors). Later the technology extended as UXGA, Ultra Extended Graphics Array which allowed 1600 x 1200 pixels.

In the 90s the LCD monitors came in the scene and gradually started competing with the CRT monitors. By the end of the 20th century, the CRT era was declining with the increasing popularity of Liquid Crystal Technology (LCD). This technology produces sharper images than the CRT monitors and the LCD monitors are significantly thinner having lower radiation emissions.

Few years’ back, LED displays came in the scene and they are gradually making its space in the market. LED technology has various advantages over LCD technology like better image quality, low power consumption, etc.

Since the beginning of computer era, there have been a number of technologies used for the display of output. The major technologies are CRT, LCD, Plasma, LED and OLED displays.

signals through a cable and the signal is decoded by the display controller which finally appears on a phosphor screen. The detailed working is as following:

As shown in the image CRTs have a conical shape and there is an electron gun or cathode ray gun at the back end of the monitor and a phosphor screen in the front. The electron gun fires a stream of electrons towards the display screen through a vacuum tube. This stream of electrons is also known as cathode rays. At the middle of the monitor, there are magnetic anodes which are magnetized in accordance with the instruction from the display controller. When electrons (cathode rays) pass through the magnetic anodes, they are pushed or pulled in one direction or other depending on the magnetic field on the anodes. This directs the electrons towards the correct part of phosphor coating inside the display glass. When electrons strikes the phosphor coated screen passing through a mesh (shadow mask or aperture grill), the phosphor lights up making a displayable dot on the computer screen. There are three different colored phosphors (Red, Green and Blue) for each pixel and the color of the pixel depends on the phosphor on which the electrons strike.

has three different phosphors for each pixel. A cathode ray strikes to one or more of these phosphors and the corresponding colored pixel appear on the screen. However high quality monitors use individual electron gun for each color which improves the image quality. Distance for two same colored phosphors (for single electron gun monitors) is known as dot pitch. Lesser the dot pitch higher is the quality of monitors.

brightness on the screen. Shadow mask is an obsolete technology in which there is a metal sheet with millions of holes to pass electrons in order to hit the phosphor coating. The shadow mask covers the entire screen thereby protecting the phosphors from stray ions (due to vacuum) and also limits the strength of the rays reducing the brightness on the monitor.

What is the resolution of the screen?–Resolution of a monitor tells how densely pixels are arranged on the screen. A combination of dot pitch and the viewable image area defines the maximum resolution of the screen. For example if a 21 inch monitor screen with a viewable area of 401mm x 298mm has a dot pitch of 0.26 mm, then its resolution is 1843 x 1370 pixels derived from a formula.

currently. LCD monitors are lightweight, compact, occupy less space, consume low power and are available in a reasonable price. Currently there are two types of LCD technology in use – Active matrix LCD technology or TFT and Passive matrix technology. The TFT technology is more reliable with better image quality while the passive matrix technology has a slower response and gradually becoming outdated.

As the name indicates, liquid crystals are the key elements of the display screen. By manipulating the crystal we can change the way they interacts with the light. There is a display controller in the monitor which receives the display signals from the video adaptor in the motherboard. The display controller controls two things – the electric signals to the liquid crystals and the back light. Structure of an LCD is shown in the below images (Also see how LCD works).

The liquid crystals used in the LCD are Twisted Nemantic (TN), a type of liquid crystals that are twisted at 90owith the surface. In this state, crystals allow the light to pass through the polarizer but on applying a voltage, they get untwisted and block the light to passing through the polarizer. The display controller starts the backlight that passes through the first piece of the glass. At the same time the display controller also send the electrical currents to the liquid crystal molecules to align and allowing the varying level of light to pass through the second piece of glass, forming the desired picture on the screen. In color monitors, each pixel is made of three liquid crystal cells fronted with red, green and blue filters. The light passing through the filtered screen forms the color what you see on the monitor. A wide range of colors are formed by varying the intensity of colored pixels.

The backlight is made of cathodes, and depending on the quality of the monitor, there may be a single cathode at the top or one at the top and one at the bottom, or two at the top and two at the bottom to improve the brightness and clarity of the monitor. These cathodes are diffused through a layer of plastic and diffusing materials.

Resolution– Unlike the CRT monitors there is no complex equation for the dot pitch and the resolution. The resolution of a monitor is simply the number of pixels contained in the matrix. Typically a 17 inch monitor has a resolution of 1280 x 1024 pixels.

In the below video Bill Hammack explains how a TFT monitor works, how it uses liquid crystals, thin film transistors and polarizers to display information.

In this field. LED monitors use light emitting diodes that acts as a performance booster in the monitors. Basically LED monitors are the LCD monitors with a LED backlight to power up the LCD panel. It means that LEDs are placed behind or around the LCD panel to enhance the luminosity and video definition of the monitor screen.

As we have seen in the above section of LCD monitors, they use a cold cathode light as backlight. In the LED monitors all the concepts are same except this backlight, which is replaced by LEDs.

There are three different types of LED monitors available based on the manner how the diodes are arranges in the monitor. These are – Direct LEDs, Edge LEDs and RGB LEDs. Both Edge and Direct LED display monitors use white diodes that are used to illuminate the LCD panel to produce the improved picture quality. The arrangement of LEDs in the monitor is shown in the below image:

In the Direct LEDs display, white diodes are placed all over the panel to produce higher quality image while the Edge LEDs display uses LEDs only on the borders of the LCD panel. Direct LEDs are generally used in the production of high definition TV whereas the Edge LEDs is mainly used in the production of computer screens. RGB LEDs display is better among the three types of LED monitors as it uses red, green and blue diodes to produce the lifelike images with amazing contrast ratio.

Both types of monitors work on the same technology. LED monitors are LCD monitors with replaced cold cathode backlight to LED backlight. Here are the differences that make the LED displays better than the LCDs

Contrast and Black level of the LED screen is better than the LCD screens because the liquid crystals cannot stop 100% of the backlight from cold cathode backlight and hence when the black screen is to be shown on the monitor, it is not completely black (as shown in the below image). But Edge LED screens perfectly show the black screen as there is no backlight at all.

illuminate tiny colored fluorescent lights to create image pixels. Each pixel is made of three such fluorescent lights – red, green and blue lights. To create a wide range of colors, intensity of these lights is varied accordingly.

There are millions of tiny cells filled with the gas like xenon and neon. They are positioned between two plates of glass known as front plate glass and rear plate glass. Two transparent electrodes covered by an insulating dielectric material and a magnesium oxide protective layer are also sandwiched between the glass plates on both sides of the cells on the entire screen.

When the CPU sends the signals to the Plasma monitor, the corresponding electrodes are charged which ionizes the gas in the intersecting cells by passing an electric current. Due to the collisions between the gas ions they release energy in the form of the photons of light which illuminate the respective cells. This process occurs thousands of times in a small fraction of second making the display faster. The released ultraviolet photons strike the phosphor material coated on the inner wall of the cell and hence phosphor electrons jump to the higher energy level. When the electron falls back to its normal state, it releases the energy as a visible light photon. Every pixel on the screen is made of three different colored phosphors – red, green and blue.

are some organic material (containing carbon, like wood, plastic or polymers.) that is used to convert the electric current into light. Since the LEDs are capable of producing different colored light, they are directly used to produce the correct color and there is no need of a backlight which saves power and space. With fast response time, wide viewing angles, outstanding contrast levels and perfect brightness, OLED displays are surely better than the existing other display technologies.

The heart of the OLED display is a stack of thin organic layers which is sandwiched between two conductors – a transparent anode and a metallic cathode, which in turn are sandwiched between two glass plates known as seal and substrate. The organic layer consists of a hole-injection layer, a hole-transport layer, an emissive layer and an electron-transport layer. When an appropriate voltage is applied, an electric current flows from cathode to anode through the organic layers. The cathode give electrons to the emissive layer of organic molecules while the anode takes equivalent electrons from the conducting layer of organic molecules. At the boundary of emissive and conductive layers, electrons and the holes are gathered. Here electrons are recombined with the holes by releasing energy in the form of photon of light. Hence the organic layer emits the light to produce the display. The color of the light depends on the type of organic molecules while the brightness depends on the amount of the current applied. By maximizing the recombination process in the emissive layer the output light can be improved in OLED devices. Thus the emissive layer is slightly doped with highly fluorescent molecules to enhance the electro-luminescent efficiency and control of color.

·Comparing it with the LCD devices, OLED displays can be viewed from different angles as they are “emissive” devices i.e. they emit light rather than modulating transmitted or reflected light.

Since the production of cathode ray tubes has essentially halted due to the cost and environmental concerns, CRT-based monitors are considered an outdated technology. All laptops and most desktop computer systems sold today come with LCD monitors. However, there are a few reasons why you might still prefer CRT over LCD displays.

While CRT monitors provide better color clarity and depth, the fact that manufacturers rarely make them anymore makes CRTs an unwise choice. LCD monitors are the current standard with several options. LCD monitors are smaller in size and easier to handle. Plus, you can buy LCD monitors in a variety of sizes, so customizing your desktop without all the clutter is easy.

The primary advantage that CRT monitors hold over LCDs is color rendering. The contrast ratios and depths of colors displayed on CRT monitors are better than what an LCD can render. For this reason, some graphic designers use expensive and large CRT monitors for their work. On the downside, the color quality degrades over time as the phosphors in the tube break down.

Another advantage that CRT monitors hold over LCD screens is the ability to easily scale to various resolutions. By adjusting the electron beam in the tube, the screen can be adjusted downward to lower resolutions while keeping the picture clarity intact. This capability is known as multisync.

The biggest disadvantage of CRT monitors is the size and weight of the tubes. An equivalently sized LCD monitor can be 80% smaller in total mass. The larger the screen, the bigger the size difference. CRT monitors also consume more energy and generate more heat than LCD monitors.

For the most vibrant and rich colors, CRTs are hard to beat if you have the desk space and don"t mind the excessive weight. However, with CRTs becoming a thing of the past, you may have to revisit the LCD monitor.

The biggest advantage of LCD monitors is the size and weight. LCD screens also tend to produce less eye fatigue. The constant light barrage and scan lines of a CRT tube can cause strain on heavy computer users. The lower intensity of the LCD monitors coupled with the constant screen display of pixels being on or off is easier on the eyes. That said, some people have issues with the fluorescent backlights used in some LCD displays.

The most notable disadvantage to LCD screens is the fixed resolution. An LCD screen can only display the number of pixels in its matrix. Therefore, it can display a lower resolution in one of two ways: using only a fraction of the total pixels on the display, or through extrapolation. Extrapolation blends multiple pixels together to simulate a single smaller pixel, which often leads to a blurry or fuzzy picture.

For those who are on a computer for hours, an LCD can be an enemy. With the tendency to cause eye fatigue, computer users must be aware of how long they stare at an LCD monitor. While LCD technology is continually improving, using techniques to limit the amount of time you look at a screen alleviates some of that fatigue.

Significant improvements have been made to LCD monitors over the years. Still, CRT monitors provide greater color clarity, faster response times, and wider flexibility for video playback in various resolutions. Nonetheless, LCDs will remain the standard since these monitors are easier to manufacture and transport. Most users find LCD displays to be perfectly suitable, so CRT monitors are only necessary for those interested in digital art and graphic design.

(IDG) -- The marriage of cathode ray tubes (CRTs) and computers is headed for the rocks. After decades of pairing with PCs, hulking CRT displays are being supplanted by thin and flat LCDs. But until the transition is complete, you"ll find increasingly great CRT bargains.

Despite the jump in LCD sales, three out of four monitors bought in the fourth quarter of 2001 were CRTs, according to market figures. Drastic price drops for LCDs are credited with eroding CRT sales. The switch will only get more dramatic: This year, 40 percent of monitors sold in the United States will be flat screens, according to market researchers at ARS.

Still, CRTs hold a substantial price advantage over LCDs in sizes larger than 15 inches. One of the cheapest 19-inch LCDs available is a $935 model made by ViewSonic. By comparison, a CRT monitor with equal viewing area (a 21-inch Philips 201b) sells for $299. Future Power"s 15-inch LCD costs $300, compared to a $100 AOC International 17-inch CRT.

What"s more, analysts say CRTs are an endangered species. Prices have about bottomed out and innovation has hit a brick wall, says Barry Young, CRT analyst with Display Search.

Within four years, finding a CRT monitor in a retail store could be like trying to find a turntable at Best Buy, says Sam Bhavnani, an ARS analyst. He predicts 15-inch CRTs will exit the market completely this year.

CRT technology will, of course, live on in millions of living rooms inside family television sets. But when it comes to PCs, the signs of an LCD revolution are clear.

"In parts of the world, like Japan, you have to really hunt around to even find a CRT in stores," says Rhoda Alexander, director of monitor research at Stanford Resources-Isuppli. CRT technology has hit a dead end, Young says. "Research and development dollars are now pouring into flat panel display technology, not CRTs," he says.

Apple Computer has ditched CRT monitors altogether and only sells LCD displays with new systems. CRT manufacturers NEC Mitsubishi and Hitachi have both stopped making CRT monitors, but both continue to sell CRTs manufactured by third parties.

Taiwan"s major CRT makers saw unit production drop 15 percent in 2001, and expect another 15 percent drop this year, according to Market Intelligence Center of Taiwan. Correspondingly, LCD monitor manufacturing is expected to grow 188 percent in 2002.

Diehard CRT monitor users will resist change until LCD technology gets even better and cheaper, the market-watchers say. That"s because when it comes to brightness, vivid colors, and resolution versatility, CRT beats LCD hands down.

Those monitor traits are important to graphic artists and fans of fast-paced shoot-"em-up games. For everyone else, flat-panel LCD"s newly affordable prices, crisp colors, no-flicker displays and small footprint are convincing selling points.

But while CRT prices remain lower than those of LCDs, the flat-panel prices that have leveled off some are expected to eventually fall further. The price drops will be less dramatic for CRTs, analysts say.

"[CRT] prices have gotten so low there is no place for prices to drop," says Sam Bhavnani, an ARS analyst. Others predict mid-range CRTs could see price declines by as much as 10 percent this year, according to Stanford Resources-ISuppli.

Even less likely is significant new development in 60-year-old CRT technology. Some manufacturers have shortened the monitor"s tubes, and therefore its depth. But the main development is flat-screen CRT displays. The display"s edges are flat and don"t distort images and text like most fish-eye CRTs.

CRT makers are trying to innovate, however. For example, Samsung"s $219 19-inch SyncMaster 950b has a new HighlightZone feature that lets you adjust the brightness and color of only select portions of the monitor. ViewSonic is working on making its CRT monitors more brilliant for video and gaming applications.

Also working to coax more life into CRTs is Extreme Devices. The company is using artificial diamonds to make CRTs even cheaper and more efficient, says Kent Kalar, company president and CEO.

Because diamond wafers don"t need to be heated to the same temperatures as cathode ray tubes, Extreme Devices" monitors enjoy some of the same benefits as LCD displays -- including instant activation and a 25 percent power reduction. The monitor"s depth is halved, says Kalar.

Kalar expects the monitors will ship to consumers in 2004. He promises brighter screens, smaller pixels, and better picture clarity than today"s CRTs. By then, the CRT could truly be a novelty.

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It"s true. Running modern games on a vintage CRT monitor produces absolutely outstanding results - subjectively superior to anything from the LCD era, up to and including the latest OLED displays. Best suited for PC players, getting an optimal CRT set-up isn"t easy, and prices vary dramatically, but the results can be simply phenomenal.

The advantages of CRT technology over modern flat panels are well-documented. CRTs do not operate from a fixed pixel grid in the way an LCD does - instead three "guns" beam light directly onto the tube. So there"s no upscaling blur and no need to run at any specific native resolution as such. On lower resolutions, you may notice "scan lines" more readily, but the fact is that even lower resolution game outputs like 1024x768 or 1280x960 can look wonderful. Of course, higher-end CRTs can input and process higher resolutions, but the main takeaway here is that liberation from a set native resolution is a gamechanger - why spend so many GPU resources on the amount of pixels drawn when you can concentrate on quality instead without having to worry about upscale blurring?

The second advantage is motion resolution. LCD technologies all use a technique known as "sample and hold" which results in motion rendering at a significantly lower resolution than static imagery. Ever noticed how left/right panning in a football match looks blurrier than static shots on an LCD? This is a classic example of poor motion resolution - something that simply isn"t an issue on a CRT. Motion handling on CRT is on another level compared to modern technologies in that every aspect of every frame is rendered identically, to the point where even a 768p presentation may well be delivering more detail in motion than a 4K LCD.

Then there"s display lag, or rather, the complete lack of it. Imagery is beamed directly onto the screen at the speed of light, meaning zero delay. Even compared to 240Hz LCDs I"ve tested, the classic mouse pointer response test feels different, faster. The advantages in terms of game response - particularly with an input mechanism as precise as the mouse - need no further explanation.

On a more general level, there"s a sense that games and hardware have "grown" into CRT technology over the years. Visuals are more realistic than they"ve ever been, and there"s something about the look of a CRT presentation that further emphasises that realism - aliasing in particular is much less of an issue compared to a fixed pixel grid LCD. Secondly, PC hardware has evolved now to the point where running at higher refresh rates than 60Hz is relatively simple - and a great many CRT monitors can easily run at much faster frequencies, up to 160Hz and even beyond, depending on the display and the input resolution. This is all pretty good for a technology that essentially became obsolete soon after the turn of the millenium.

And that"s where the negatives of CRT gaming start to hit home. The technology is outdated, which presents many pitfalls. The most obvious concerns form-factor: CRT displays are big, bulky and weigh a lot. I invested in a display widely considered to be one of the greatest CRTs ever made - the Sony Trinitron FW900 - a 16:10 24-inch screen. As the video hopefully demonstrates, picture quality is immense, but so is the heft of the screen. It weighs 42kg and with a 600x550mm footprint, the amount of real estate required is not insignificant.

Then there"s the input situation. CRT monitors use VGA, DVI-I or component RGB BNC inputs - and pretty much the most powerful modern GPU still to offer support there is the GTX 980 Ti or Titan X Maxwell. Thankfully HDMI, USB-C and DisplayPort to VGA adapters are available, but you"ll be spending a lot of time online looking for the right one to handle high pixel-rates if you intend to go past 1920x1200 at 60Hz. Very few widescreen CRTs are available and even the Sony FW900 has a 16:10 aspect ratio, meaning that console gaming isn"t really a good fit for CRT displays - 4:3 screens, even less so. Yes, you can run consoles on a CRT, but my feeling is that for many reasons, this is a pursuit best suited to PC users.

Finally, there"s the cost - which can cut both ways - along with the quality of the display you"ll actually get. The FW900 is a legendary screen with massive asking prices to match. However, John Linneman"s 19-inch 4:3 Sony Trinitron G400 cost him just 10 Euros (!) and still looks amazing. However, the fact is that in both John"s case and mine, the screens weren"t in optimal condition when we bought them - which is to be expected for screens well into their second decade of life. Suffice to say, getting image quality to the expected levels can take a lot of time, effort and plenty of research. And on a more basic level, CRT screens are made of glass and glare can be an issue. In shooting the video on this page, I had to film at night in order to show the screen in the best possible light.

There are plenty of pitfalls then - but the end results while gaming are highly satisfactory. Modern titles on a CRT can look sensational, you have the benefits of high refresh rates if you want them, you can turn up all the eye candy and you don"t need to worry so much about resolution as a major defining factor of image quality. Today"s premium-priced gaming LCDs are trying very hard to recapture CRT"s major benefits - low latency, high refresh rates and reduced input lag - but as good as many of these screens are, for our money nothing beats a good old-fashioned cathode ray tube display for desktop gaming - not even the very best LCD screens on the market.

CRT and LCD are both display devices. CRT is an old technology whereas LCD is modern one. One major difference between CRT and LCD is in the technology used for image formation. The CRT display produces an image by using an electron beam, while LCD display produces an image on the screen using liquid crystal display.

CRT stands for Cathode Ray Tube. CRT displays produce an image on the screen by using a sharp beam of electrons that is highly focused to hit a phosphor screen present in front of the tube. The important components of a CRT are electron gun, focusing mechanism, and phosphor screen.

CRT was used in earlier TVs and computer monitors. CRT produces poor quality images on the screen and also consumes large electricity. The lifespan of CRT displays is very short. Because of all reasons, CRTs are being replaced by other display technologies these days.

LCD stands for Liquid Crystal Display. In LCD, liquid crystals are used to produce images on the screen. LCD displays are thin and more energy efficient, thus they are used in several small sized devices like mobiles, laptops, TVs, desktop computer monitors, calculators, etc.

In LCDs, light is obtained from external sources, and then it is converted into a definite graphics pattern using optical effects. LCDs have several advantages over CRT such as less power consumption, faster response, smaller size, low cost, etc.

Both CRT and LCD have their own advantages and disadvantages. However, these days, CRTs have almost become extinct. No one seems to be using them anymore. LCDs and other display technologies have replaced them because the new devices are highly efficient in terms of cost, power, and performance.

Martpri have to best collection of popular computer monitors from top Aoc computer monitor. Computer monitors are commonly called Visual Display Unit (VDU), that are main computer output device. It generates images using pixel (tiny dots), arranged in a rectangular form. To sharpness is directly proportional to th number of pixels. There are mainly three types of monitors - Cathode-Ray Tube (CRT), Flat-Panel Display and CRT monitor etc. In the prvious years, the cathode ray tube or CRT technology was mainly used in monitors as computer output device, but today these have disappeared into oblivion. There are still some organizations that are using CRT monitors, but they may be on their way to retirement. Aoc LED monitors are the latest monitors that have hit the market in the recent years. As compared to the LCD counterparts, the Aoc LED monitors are sleeker and they are more advanced in terms of performance and quality. Choose from some of the best Aoc computer monitor in India at MartPri. You may also select from a number of Aoc computer monitors. Most of these computer monitors come with a standard size HD display. Moreover, they come packed with the latest technologies like LED backlights, anti-glare, on-screen controls etc.