crt and lcd monitors pricelist

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A loved classic household item – the TV is an essential piece of technology for the modern family. Our wholesale smart crt monitor offer great versatility. In addition to watching normal TV, viewers can connect to the internet and browse through programs online for instant streaming. For all of the family, these crt monitor can play games, use apps, and are set up for social networking. With built-in voice control and touch screen features, these smart TV"s really are one not to miss. They come in a range of sizes. For those wanting the big screen experience, try the following sizes (inches): 60, 65, 70, 75 80, and 85. For customers who want something smaller, then our range of 24-32-inch crt monitor are ideal.

TV definition improves vastly every day with constant new technology. With our wholesale 4k Ultra HD TVs, viewers can watch their favorite programs in ultra-high definition. These crt monitor come in the highest resolution for optimal viewing. For customers who want the latest technology at affordable prices, then choose from our range of 4k TVs.

LED TVs are known for their great contrast and lighting, producing stunning clarity and colors. They are more durable than other TVs, so viewers do not have to worry about buying an expensive TV they then have to replace in a year"s time.

Whatever your customer"s preference, we will have the TV for them. Choose from wholesale flat-screen crt monitor to curved crt monitor. Outdoor TVs are also great for those wanting to install a TV on their terrace or in their back garden. For the full range, then visit our online wholesalers at Alibaba.com.

Manufacturers have discontinued their lines of bulky CRT monitors in favor of slimmer, brighter LCD monitors. Many monitors are designed to double as TV and movie screens or computer displays. Selecting the right LCD monitor depends a lot on how users intend to use the product, be it for working, playing games or watching movies.

A budget-priced LCD monitor can be purchased for about $100to $200. This type of LCD monitor is a low cost way for students or general-purpose users to upgrade from an old CRT unit. Expect a 15- to 20-inch screen, either standard 4:3 or widescreen format, with a maximum resolution of up to 1600 x 900. Even budget monitors should have a response time of at least 12ms, fast enough to play video games or watch DVDs. An example of an inexpensive monitor is the Acer V173b, a 17-Inch LCD monitor with 1280 x 1024 maximum resolution available for a shade under $100. The HP 2009M[1] is available for about $150and offers a 20-inch HD screen with a maximum resolution of 1600 x 900.

Business or home office users should look for a monitor that offers a high brightness rating and is easily adjustable for comfortable viewing over long periods of time. Expect wide viewing angles and units with swivel, tilt and pivot settings. These types of monitors are available for about $200to $500. An example of a business monitor is the HP L2245wg available for about $250. The 22-inch wide aspect screen offers a 160-degree viewing angle, tilt, pivot and swivel options as well as anti-glare and anti-static features.

Video gamers require a monitor with a large, bright screen, accurate colors and plenty of connectivity options. Look for a full HD screen that can be connected to Blu-ray and DVD players as well as video game consoles. Expect to pay $400to $1,500and above for this type of monitor with a 24- to 30-inch screen. The Dell Ultrasharp 2709W costs about $700and offers a 27-inch WUXGA full-HD screen with 1920 x 1200 maximum resolution and high brightness rating.

For editing or watching movies, users need a monitor that delivers crisp images with accurate black levels and flesh tones. Look for a 24- to 30-inch widescreen unit with a fast pixel response time and multiple connectivity options. An HDMI connection preserves HD content from a Blu-ray player or HDTV signal without degradation. Expect to pay $500to $1,800and up for a monitor suitable for viewing movies. The Dell UltraSharp 2408WFP is a 24-inch WUGA 1920 x 1200 display available for under $600,while the Gateway XHD3000 costs about $1,000and offers a 30-inch HD screen with many home theater style features as well as 6 video inputs and 6 USB ports. For Mac users, the Apple Cinema HD 30-inch Display[2] costs about $1,800and offers an optimal resolution of 2560 x 1600 and a wide 178 degree viewing angle.

Manufacturer such as Hewlett-Packard[3] offer closeout and refurbished monitors at discounted prices, as well as discounts for some government and education employees.

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Average personal computer prices have plummeted in the last several years in spite of the fact that PCs continue to get better and faster, but the market for desktop displays remains a curious anomaly in an era of frenetic price-cutting.

In January of 1994, a new PC with a poky 60-MHz Pentium processor, only 8MB of memory, and a small 450MB hard drive was a whopping $3,500, according to trade magazines. Today, feature-laden PCs with 20 times the hard drive capacity, four times the amount of memory, and the newest and fastest Pentium II processors running at 300 MHz are being released at prices as low as $2,000 from major vendors.

By January 1997, the average retail price for a desktop PC was $1,642, and declined another 20 percent by year"s end, according to data from Computer Intelligence.

On the other hand, the price of a typical 15-inch monitor dropped 15 percent over the same period, yet didn"t gain significant performance advantages over previous models. As more customers started buying 17-inch monitors in 1997--resulting in increased production--volume prices dropped 19 percent from 1996 to 1997, but again, the performance of the systems was roughly equivalent.

Over time, there have been modest price drops: In 1994, the average price of a 15-inch monitor was $444, and the average price of a 17-inch monitor was $900. In 1997, Stanford Resources says, prices reached an average of $333 and $632 respectively, with prices ranging about $100 in either direction for a 17-inch monitor.

Still, analysts say that a number of factors will prevent companies such as Sony, Sharp, NEC, and ViewSonic from soon following PC industry trends, if ever.

"You can increase processor performance exponentially without increasing the weight of the product, but when you blow up the screen size, the monitor weighs a lot more, which means when you have to ship it anywhere, it costs more," said Rhoda Alexander, a senior market analyst for Stanford Resources, a firm that tracks the display industry. Since the monitor is larger, more raw materials such as glass are used, which also adds cost to the system.

There are other factors too. "What"s important to remember is that when you are talking about [processor] prices relative to display costs, a lot of [display] price drops happened in the late 1980s and early 1990s," Alexander said.

The display industry is a relatively mature one that has already realized manufacturing efficiencies in commonly sold products, such as the 15-inch monitors, analysts say. As a result, changes in price and monitor performance are much more gradual than in the PC industry.

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The 17" (16.0" viewable) ViewSonic E70b is the right choice for small and home office users and students who are ready to upgrade their smaller monitor... at an affordable price. With its 0.23mm horizontal (0.27mm diagonal) dot pitch, crisp images and vivid colors this monitor is ideal for a wide range of applications from wordread more...

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Prices of flat-panel monitors are likely to continue dropping through the first half of 2003, but stabilise by mid-year, according to NEC/Mitsubishi, one of the biggest manufacturers in the UK of LCD monitors.

Speaking in London on Tuesday at the launch of nine new NEC/Mitsubishi LCD monitors, general manager John McGrath said he expects a recovery in the notebook market to soak up a lot of the over-supply next summer.

"Prices of 15 inch monitors have come down substantially," said McGrath. "When demand for notebooks gets weak, LCDs are routed to the monitor market, and the monitors get cheaper... the market is being used as an outlet" said McGrath. But, he added, "Some panel makers are hurting to the point where they can"t afford to go on. I expect prices to stabilise by the summer -- there could even be a shortage by then, which could push prices up marginally."

Although LCD monitor prices have fallen for much of 2002, NEC/Mitsubishi"s 15-inch displays underwent a price hike at the beginning of the year when the typical street price rose form about £290 to £310, according to the company"s own figures. The typical street price is currently just under £280, while for some brands such as Samsung and Philips, it is closer to £240.

Like many other monitor manufacturers, NEC/Mitsubishi is turning its attention to LCD technology because prices of CRT monitors have dropped so far that there is no more value to be extracted from 15-inch and 17-inch products; they have become commodity items.

CRT monitors are also losing popularity both among manufacturers and buyers as governments worldwide are preparing new environmental laws that will increase further obligations to recycle computer equipment. CRT monitors, with their high lead content, are both difficult to dispose of in an environmentally friendly fashion and to recycle.

"The shear volumes that will ship will make the whole market much more efficient," he said. However, said McGrath, there will continue to be demand for CRTs even if, as is expected, demand for bog standard 17-inch models sees a rapid demise.

Indeed, NEC/Mitsubishi is not taking it eye off the CRT market; the company revamped its entire range over the past three months with the ClearFlat and SuperBright Diamondtron models.

NEC/Mitsubishi"s new LCD range includes models with analogue interfaces for the soho (small office/home office) sector, and models with digital and analogue interfaces aimed at business users.

Prices start at £229 ex VAT for 15-inch models and £599 for 18-inch models. The 19-inch LCD1920NX costs £659 and the 20-inch £LCD2080UX will cost £1,199 when it ships at the end of December.

Three 17-inch models are to launch, with the speaker-equipped multimedia LCD1760VM costing £399 when it ships at the end of December, the thin-bezel LCD1760NX costing £375 due in January. Pricing has yet to be set for the low-end, analogue interface-only LCD1701, which is also due to ship in January. A 30inch display, the LCD3000, tops off the range at £2,697. A 40-inch model is due in February.

In November the company began selling for the first time through a retail store when PC World began stocking the 15-inch LCD1511M and the 17-inch LCD1711M - priced respectively at £279 and 429 inc VAT.

According to market research firm Brian Norris Associates, NEC/Mitsubishi was responsible for 12 percent of the 236,000 branded TFT displays shipped in the UK during the third quarter of 2003. LG came second, with 11 percent of the market by unit shipments. By value, NEC/Mitsubishi had a larger lead, with 19 percent of the market compared to Philips in second place with 12 percent and Sony in third with 10 percent.

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!

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!

Part of what I consider essential in a high end system is a fairly Quiet machine. Especially these days with 480W supplies and the power disappation of CPUs and Video cards getting so high fan noise is getting way out of hand. After years of trying to build quiet fan cooled machines I moved to water cooling. Water cooled cases are vastly quieter than any fan based system. I"ve also found all my water cooled systems (CPU,GPU,Chipset) to be considerably more reliable and stable, especially when overclocked, compared to my fan based systems. I currently use Koolance PC2-601 water cooled cases as they are very quick to set up, have temperature monitoring, temperature variable fan speed, and overtemp alarms (saved me once so far). They are fairly quiet but I think there is room for improvement. Koolance uses 80mm fans on the top of the case. A system with 120mm fans buried inside the case would have a definite sound level advantage. There are also better designed and made cases than the Koolance, the trick is marrying one with a good water cooling kit. I would love to see your recomendations for cases and water cooling kits that would be appropriate for your High end / Overclocked systems. Quiet power supply recommendations that also fit the power and reliability bill would also be great to see.

Water cooling used to be restricted to the home hobbiest/handyman types, but with the current kits out there from several manufacturers it has become almost as turn key as installing a motherboard, and the benefits are considerable. I think you should seriously look into it for your reviews. Once you"ve had a quiet PC, you"ll never go back.

If you’ve been in the market for a new LCD computer monitor to replace the hulking CRT monitor taking up desk space, you’ve noticed the prices falling rapidly.

But analysts and executives say this fall might be a very good time to buy that LCD monitor, because the roller-coaster ride of prices could firm by next year.

“With LCD monitors, a lot of the pricing has to do with the panel manufacturers, who are mostly in China, Korea and Taiwan,” said Adam Swantoko, senior account manager with AOC Displays.

Fremont-based AOC Displays is the American subsidiary of the largest computer monitor maker in the world, TPV Technology Ltd. of Hong Kong. TPV supplies LCD monitors to the major PC makers of the world as well as directly to consumers through the Envision product line, whose U.S. headquarters also is in Fremont.

“The pricing of the panels, at the component level, has come down 20 percent in the last year in the case of 15-inch panels and 30 percent for 17-inch panels. And that relates directly to the price of LCD monitors at retail,” Swantoko said. “Between now and the end of the year we probably won’t see much difference, although panel prices of 15-inch and 17-inch are coming up a little.”

Analyst Sweta Dash of iSuppli, a market research firm, said most monitor manufacturers have too much panel inventory and are taking losses on the lowest advertised LCD monitor prices. “That’s the lowest it can go,” she said.

“Every six months a new factory comes on line and demand is not really able to keep up,” Swantoko said. To unload the inventory — and win market share not only as a factory but as a country — “these manufacturers are dropping prices trying to vie for business.”

Philips Electronics, which has an LCD monitor unit based in Seoul, South Korea, had been vying with TPV to be the major supplier of computer monitors to PC manufacturers.

This summer, TPV paid $2 billion to acquire Philips’ operation, which manufactures LCD monitors for computer makers that later add branding to the generic monitors.

The total LCD market, including those used for small consumer items from cell phones to computer and laptop monitors to the larger big-screen TVs, is $19 billion to $20 billion a year, according to analyst Troy Peery of Oppenheimer & Co. in New York.

LCD stands for liquid crystal display. The technology that allows monitors to be sleek, light and 4 inches thin has to do with the molecular nature of liquid crystals.

A liquid crystal has some fixed molecules that float among other liquid molecules, and it responds in a predictable way to electric currents by passing light through the crystals when stimulated by electricity.

The once revolutionary technology is now found in hundreds of consumer goods from $2 watches and calculators to cell phone handsets, laptop computers, automobile dashboards and sophisticated graphics computer monitors.

Market researcher DisplaySearch said average prices for 15-inch monitors fell about 20 percent in the second quarter (or early summer) to $228, while 17-inch monitors fell to $285 from above $300. Predictably, LCD monitors also grabbed market share from the standard cathode ray tube monitors, DisplaySearch said, such that 65 percent of all new personal computers sold are sold with LCD monitors.

(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.

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.

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Whether it is for professional graphic designing, gaming, or general computing requirements, a high-quality monitor can deliver an engaging viewing experience. Available in a wide range of options, these devices offer you the flexibility to choose the one as needed. You can decide based on their size, screen resolution, panel type, display type, and technology. You can also choose based on their design and mounting, webcam, and additional features. So, whether you are bored of your old monitor or need an upgrade to take advantage of the sophisticated software, you can browse and find the right screen for your requirements. Several brands, such as Dell, Acer, LG, HP, BenQ, and many more offer a myriad of options to choose from.

You can go ahead with a basic monitor if you only need it to get you through the day and help you send emails, post on social networks, surf the web, pay bills, watch films, and so on. For these uses, adequate-size screens with full HD displays are easily available. Heavy games demand displays with high resolution, a good response time, a fast refresh rate, and a wide viewing angle of up to 178 degrees or more. And, if you are a gaming enthusiast, you can search for AMD FreeSync or NVIDIA G-Sync technology for an engrossing gaming experience. Some gamers also search for two gaming monitors or a truly widescreen display to enjoy an enhanced view. For photographers, graphic designers, animators, coders, and other multimedia specialists, widescreen displays with Full HD or Quad HD resolution can be suitable. The IPS panel and other display technologies provide wide viewing angles and excellent colour accuracy. You will also need to think about response time, mounts, stands, and so on for an improved viewing experience. If you want to buy this device for work, such as working on spreadsheets or collaborating with coworkers, an LED or IPS display with Full HD resolution will be ideal.

If you want to enjoy high-quality pictures, you need a display with up to 1920x1080p Full HD display and more. But, a QHD or up to 4K variant will deliver more sharp and clear images. As far as the size is concerned, up to 81.28 cm (32) devices are enough for viewing from average desktop distances. You can find up to 81.28 cm (32) 4K gaming or general use displays. The refresh rate, which is measured in hertz, indicates how many times your display updates with new information every second (Hz). A large number delivers smooth images. Gamers desire a display with a refresh rate of at least 75 Hz as well as the shortest response time possible. But, if you are not a gamer, a refresh rate of 60 Hz should suffice. Curved displays are less eye-straining and have a large field of view. And, these displays are often wide, which indicates high performance. So, you can buy monitors online and enhance your overall viewing experience.

The Xerox Alto computer, released on March 1, 1973, included the first computer monitor. The monitor used CRT technology and had a monochrome display.

LED display technology was developed by James P. Mitchell in 1977, but LED monitors were not readily available for purchase on the consumer market until about 30 years later.

LCD monitors outsold CRT monitors for the first time in 2003. By 2007, LCD monitors consistently outsold CRT monitors, and became the most popular type of computer monitor.

NEC was one of the first companies to manufacture LED monitors for desktop computers. Their first LED monitor, the MultiSync EA222WMe, was released in late 2009.

Touch screen LCD monitors started to become cheaper, more affordable for the average consumer in 2017. Prices for 20 to 22-inch touch screen monitors dropped below $500.