Archive for the ‘LCD Monitors’ Category

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LCD Monitor – Better Than CRT Monitor

LCD monitors or Liquid Crystal Display monitors are replacing the old CRT or Cathode Ray Tube screens and are far superior in a vast majority of applications.

There are several advantages of LCD Monitors over the old CRT Displays. While LCD Monitors are compact and lightweight and consume less power approximately 20W whereas the CRT monitors are bulky and heavy consuming upto 150W. An LCD Monitor produces perfectly sharp images with perfect image geometry whereas in CRT the sharpness is limited and it tends to blur more at high brightness and with the aging of the tubes and suffers from geometric distortions.

LCD monitors have a consistent tonal scale and can display text with excellent contrast whereas the CRT monitors display strong bright areas which can cause other regions of the picture to dim and also has poor text contrast because of limited bandwidth.

LCD monitors do not normally flicker whereas a faint flicker can always be observed in a CRT monitor.

There are also some inherent disadvantages of LCD monitors over that of the CRT monitors. The contrast or the color changes with the viewing angle in a LCD monitor whereas in a CRT monitor it is always a consistent image irrespective of viewing angle. LCD monitors may cause motion blur and has a poor black on dark images. Whereas the CRT monitors usually portray motion well and also has good black contrast.

When viewing photos or videos on a LCD monitor it may appear flat and the peak brightness is limited by the back light. A CRT monitor displays movies/video/photos with a sparkle and life to images with very high peak brightness.

If LCD Monitor screens are damaged, it may develop stuck pixels whereas no such pixel based problems are present.

In LCD the natural interface would be digital e.g. DVI interface and the image can be sub-optimal with analog interface whereas CRT’s are naturally suited to analog interface.

On the basis of image-quality LCD monitor is best suited for technical/CAD applications and office uses such as large, detailed text-based but -non-critical color graphics while CRT still has the upper hand for high-end photography or art work and for television displays.

Unlike CRTs that are actively displaying the light through coated phosphors, an LCD actually takes white light and filters it to get the desired colors. To do this for each given pixel there are three sub pixels one for red, green and blue light. When the sub-pixel is off, the filter will block that particular color of light. When the sub-pixel is on, it will open the filter to let a desired amount of light through.

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How to Select TFT LCD Monitor for Gaming

You have probably heard it before, but it bears repeating…the best way to know if a monitor is right for you is to view it in person. Specs are a great tool for narrowing down your choices, but they are no replacement for hands-on experience. Plenty of large resellers stock a wide range of monitors and some are on display. Go down to every shop you can and see if you can find the monitor you are thinking of buying. You never know, that slightly low spec one you shunned in favour of that extra inch of screen may beat everything else hands down in ‘real world’ performance.

The Minor Issues

Dot Pitch/Pixel Size

Dot pitch is the distance between phosphor dots (sub-pixels) or between TFT LCD cells of the same color on a display screen. A smaller number generally means that the image on the screen is sharper, as there are more dots in any given area.

A display with a smaller dot pitch is usually better, but this is not always true because of the methods used to measure it. There are many methods of measurement as well as differing pixel geometries on the screen and differing screen resolutions when judging image quality on the display.

Most of the time, dot pitch is measured on the diagonal, this gives the most accurate representation of dot pitch of the display. Later some companies introduced a horizontal dot pitch measurement. By measuring only the horizontal dot pitch and not the vertical, cheap, low-quality displays can appear to have a smaller dot pitch.

For example, a display with a 0.28mm (diagonal) dot pitch has a horizontal pitch of 0.24 or 0.25mm depending on some monitor construction variables, a good quality 0.26mm (diagonal) display has a horizontal pitch of 0.22mm.

Be careful not to get the two different measurements confused as that 0.26mm dot pitch monitor may have more dots per millimeter than the 0.24mm dot pitch display.

Contrast and Brightness

Contrast is the ability for the monitor to vary brightness between the foreground and the backgound. It is expressed in a ratio ( i.e. 500:1). Typically the higher the ratio, the better the image quality will be as the display will be able to show bright colors next to dark without washing out the black or dulling the colors. Display brightness is expressed in candela (cd) and is defined formally as:

Phew, what this means to us it that the greater this number, the brighter the display is capable of being. However, you must watch the power consumption of the unit. A display that has a very high brightness level will consume more power than others with a lower value. The old adage, “a light that burns twice as bright lasts half as long” sort of applies here. So a trade off between brightness and power consumption is something to watch.

Viewing Angle

CRT monitors are viewable from almost any angle. That is to say if your view is not blocked by the curve of the screen or the surrounding plastic frame. TFT LCD’s have a narrow focus and therefore can only be viewed from inside a certain arc of angles. As the technology improves, this arc is being improved. This should not have any affect on the primary user of the PC, as they should sit facing the display. But if you like to have bystanders watching you achieve the ultimate score on puzzle bobble or you are trying to show off to your girlfriend your best trick in Tony Hawk’s pro skater, then you may have some issues (and they also might not be able to see the monitor ;-)

Analog vs. Digital connectors

More and more graphics cards are coming equipped with DVI connectors. But should you get a display with a DVI connector, and analog connector, or one of each?

The advantage of a DVI connection over the analog is that the DVI connection allows for lossless transmission from the computer to the display. Signal noise, for instance, should not be a concern with the DVI connection (no more hum bars on the monitor when the vacuum is being used). It also provides support for much higher data rates which are needed for the larger diplays (such as cinema screen size displays). Currently, no other advantages of the DVI connection specification are being exploited. If you would like to know more on this subject go to the Digital Display Working Group (DDWG) who developed the specification.

What To Look For When Buying

As mentioned earlier, Response Times are the primary concern of any TFT LCD screen. Viewsonic is advertising their VP201s monitors as having Response Times (Pixel Response, Video Response) that are fast enough to present “Realistic, artifact-free 3-D gaming.” These monitors have a “blistering 16 millisecond (16ms) Response time.” Hitachi also advertises their CML174B and CML 175B LCD monitors with Response Times of 16ms “enabling smoother computer video, animation and gaming movement.” Samsung goes one step better with their 172X LCD monitor that sports an amazing 12ms Response Time.

Next, be sure to select a screen that has a native resolution that meets your needs. That is to say, if your system can only play games at 800×600 then buying a 2048×1536 monster display won’t give you any advantage and will almost certainly do more to hinder your game playing and your enjoyment of it.

Check the dot pitch measurement and make sure you are comparing like-for-like if you are looking at more than one display, especially from different manufacturers.

High contrast and high brightness, but low power comsuption is a very good combination because this will give you impressive visuals and your display will hopefully last longer.

Other, smaller, concerns (like the price) I will leave to personal preference. A TFT LCD that satisfies all of these criteria will hopefully do justice to your game visuals and give you the gaming experience that you desire.

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Steps in Installing Rack Mount LCD Monitors

Rack mount LCD monitors can save you a lot of space and help you form a convenient and efficient desktop for your work or home study. The rack mount is set up so that the keyboard and LCD monitor are on a sliding rack that lest you move them out from your desk or over it. Once you decide to invest in the rack mount LCD monitor, you will have to install the rack and the monitor. Here, then, are steps in installing rack mount LCD monitors.

The first step in installing rack mount LCD monitors is to get out and get one. They are available at most any home office or electronics store. Since the rack mounts are becoming more popular, they are easier to find now then aver before. Once you have your set, bring it home and spread all of the parts out along with the instructions so you can find what you need.

The first step will be to install the slides on your desk. Some rack mounting sets will include slides that are “handed.” That means that each slide is assigned a side of the monitor rack, but there are also sets where either slide can go on either side. Consult the instructions with your set to make sure you have mounted them correctly.

Next of the steps in installing rack mount LCD monitors is to hook up the cable bracket if your set has one. The cable bracket will keep the computer cables from being tangled up in the apparatus of your rack mount. Generally these will go to the rear of the entire mount system.

Third, you will likely be required to install the fixed mounts. These are what will keep the apparatus stable and secure with your computer monitor in it. Follow directions carefully so that you can be sure to get everything installed tightly. This is what will keep your monitor safe, so double check all screws and studs. They will connect to the system which will then connect to the slides you installed to begin with.

Once that is all installed, it is time to get your LCD monitor put into the rack mount. This will allow you to slide your monitor and keyboard in and out from the desk. Overall it will save you a great deal of space. Make sure you carefully follow the directions and precautions contained in them. That will keep your equipment safe and your system stable. Once installed, you will be able to start using everything immediately.

Knowing the basic steps in installing rack mount LCD monitors will give you a head start when you go to install yours. You will be able to easily slide your monitor and keyboard in and out saving space and making you more comfortable. Once you get used to it, you will be in love with your rack mounted LCD monitor. Just make sure you follow directions carefully and double check every step of your installation. Before you know it, you will have a rack mounted LCD monitor ready to go.

Stu Pearson has an interest in Business & Technology related topics. To access more information on lcd tv monitor or on lcd computer monitor, please click on the links.

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Top 5 19″ LCD Monitors on the Market

When you are considering a 19″ LCD monitor for your computer, you want to make sure you get the best. When looking at the top 5 19″ monitors on the market, it is important to find those that are quick and helpful in terms of office production. Price, function, and a number of other factors can influence which monitors are in the top 5, but this list will at least give you a starting point.

The first of the top 5 19″ LCD monitors on the market is the LG Electronics Flatron L1950B. With a resolution of 1280 by 1024 and several available adjustments, this is a great monitor for anyway. It has an easy to use height adjustment feature to keep it at eye level as you work. Also, this very slim and flat monitor gives a great looking image that is easy on the eyes and helps prevent fatigue.

The second LCD flat screen monitor to make its way into the top five is the Dell UltraSharp 1905FP. This monitor comes in with a resolution of 1280 by 1024 with a number of available adjustments to that you can have it just how you like it. It also includes three 2.0 USB ports and a full range of adjustments of the physical settings. It is easy to use and offers a great picture.

Third on the top 5 19″ LCD monitors on the market is the ViewSonic VP930b. With a good resolution, again, at 1280 by 1024, the ViewSonic offers smooth and easy to use physical adjustments that allow you to comfortable with the monitor. The monitor even has a very nice stable stand that keeps it in place and makes the physical adjustments easier.

The fourth on the list ist he NEC MultiSync 90GX2. The resolution on this one is, like with most of these, 1280 by 102. The adjustment is limited to tilt and swivel, but in most cases the height is actually pretty good. The screen is a glossy design that makes text easy to read and contrast prime. Scrolling through screen menus is easy so that picture adjustment is simple and quick for anyone.

Finally, in the top 5 19″ LCD monitors on the market is the Hyundai ImageQuest Q90U. Limited in adjustment to just tilt, the resolution is the same as all the rest at 1280 by 1024. There are two easy to use and reach USB 2.0 ports on this model. Three is a low response time to the monitor, but it does not really cause any problems in general use. Overall, it is still a strong monitor that you can get for about 40% less than the other models on the list.

Overall, looking at the top 5 19″ LCD monitors on the market can help you decide what will work best for you. In your home office, at work, or for fun these monitors are going to be easier on your eyes and better for space management. You will be glad you took the time to equip yourself with a flat screen LCD.

Stu Pearson has an interest in Business & Technology related topics. To access more information on lcd monitor review or on best lcd monitor, please click on the links.

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Tips in Buying Car LCD Monitors

LCD monitors are showing up everywhere. Because they take away the fear of burn-in and still maintain clear contrast and great resolution, they are the perfect types of screen to use for most any type of viewing. With the onset of modern car technology, LCD monitors are showing up in cars. You may be ready to buy an LCD monitor for your car, but before you do you should consider these tips in buying car LCD monitors.

The first of the tips in buying car LCD monitors is to decide what type of monitor you need. There are a number of types of monitors that show in cars now. Do you need an overhead video monitor so the kids can watch DVD’s? You may need, instead, a flip down video monitor that can be used to show videos and then fold into the ceiling.

Additionally, there are in-dash monitors, headrest monitors, and even sun visor monitors. So you need to make sure, before you buy anything, that you know which kind you are buying. Where the monitor is will affect the size you buy and the quality you get as well.

Next, you need to make sure that your vehicle will support the monitor you want to install. Check with the manufacturer to make sure your electric system and interior is capable of supporting the monitors you want to install. If you cannot install it, then you can save yourself the trouble of buying in the first place.

Once you know what kind of LCD monitor you need for your car and that it can be installed in your vehicle, it is time to shop. Your shopping should begin by getting an idea of the baseline costs of what you need. By starting with the internet, you can compare a number of prices in a hurry and get a feel for what the market is like. Once you know what the internet is offering, then start looking at brick and mortar establishments.

Talk to sales people and find out what costs are like. Compare the prices to the internet prices you got before and make sure you are getting the best possible deal. Additionally, you may want to inquire about installation as well. It can really save you the pain of trying to install a dash monitor or something in the head rest when you are not familiar with it. This is also the time to look into financing if that is something you are interested in. Get all questions out of the way early so that you know exactly what is going on.

Use these tips in buying car LCD monitors to enhance your vehicle. You can also make repair replacements if need be. The point is that you should be diligent and take the time to do a little homework. By familiarizing yourself with the prices, the compatibility with your car, and your installation costs, you will be able to make an informed and smart decision about the LCD monitor you buy for your car.

Stu Pearson has an interest in Business & Technology related topics. To access more information on lcd flat panel monitor or on lcd panel monitor, please click on the links.

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