LCD Flat Screen TV - Are 120Hz LCD Flat Screen TVs Worth The Extra Money?

If you have a look at my LCD flat screen TV, no doubt you have about the 120Hz models read. You are probably wondering whether the models with a value of 120 Hz, the costs are. The value of the 120 Hz feature was discussed heavily in recent months. There are a number of things to consider before the decision.

In the early days of LCD or plasma TV wars, one of the biggest disadvantages of buying a LCD TV was that they tended to moveBlur, and a slightly jerky picture, especially in times when there was a lot of fast action like sports or movie scenes like car chases. Although it handle a big improvement over the years, television in the ability to fast movements, so LCD is still fighting the stigma of not having as smooth a picture as plasmas.

Enter the 120Hz TV. Have as an immediate response, integrated 120Hz LCD TV manufacturers in its latest TV models. These TVs haveRefresh rates that twice as fast as the "standard" 60Hz models.

Those who are followers of the 120Hz technology argue that the image is noticeably smoother with crystal clarity, especially in fast action scenes or sports. Another advantage is the ability to produce an almost 3D image.

On the other hand, others say that they can see no difference when comparing side to side with the "standard" 60Hz models. You have the feeling that the 120 Hz models are simpleHigher prices to sell gimmicks tv.

So who is right? As usual, there is a middle ground. Simply put, a 120Hz TV is easy to replicate a standard 60Hz signal and twice for what is little improvement to image quality. The real difference is when the use of a video processing function for motion enhancement. Each company has its own name for this process. For example, Samsung Electronics is feature called AMP for Automotion Plus. This function takesthe screen, and interpolates the image to a smoother picture, to be able to reduce stuttering.

If the movement is a further improvement satisfactory picture? This is also not yet decided. Motion improvement at its best offers a noticeably smoother, more stable image, free from Jutter, motion blur and ghosting. Some describe 120Hz games in that they have a 30 frames per second, like a game with 60 frames per second game, while others are looking to live on the ability to sports and movies fascinatedand 3D-like.

In the worst case, movement can be divided accessories designed to introduce a fast moving disturbance distracted in the second image as artifacts that may be obvious. Others feel that, while kind of documentary showing how stable Planet Earth breathtaking live-action shots may provide that the motion is carried away by the improvement of the films with a cinematic feel almost too realistic, live TV or soap opera rather than a cinematic experience .

It is important tosuggest that movement enhancements may be turned on or off, so if you are a film without the motion enhancement, you can simply switch it on, you want to see.

At the time of the election, with a 120 Hz LCD flat screen TV to go, is a purely personal choice and budget. Note that it is a very new technology and as with all new technologies there are still some things that are to be completed. There is little debate that 120Hz is the wave of the future and that the technologywill only improve over time. If the course is not the primary concern or when the additional dollars can in an attempt to future proof your TV then buy it seems appropriate to perfect, with the additional features and advantages of a 120-Hz LCD flat-screen TVs offer may go to spare. If price is a primary factor, and you work on a limited budget then a standard model would be a good choice to be perfected, the 120-Hz models.

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TV Viewing Distance and Screen Placement in the Home Theater

The optimum TV screen size is directly related to the available viewing distance - but there are other factors as well that must be considered.

Viewing distance: Is it just a matter of personal taste?

Sit too close to the big screen TV and you will be able to see the image build-up structure - scanning lines or pixels forming the image - so distracting your attention and enjoy your home theater experience. But sittingtoo far away and lost the effect.

There are different opinions about the best way to determine the optimum TV viewing distance for a specific screen size. Just go to the movies and you will soon realize that everything is a matter of personal preference - some would sit at the back. Others would jump to the front row, because they prefer the larger picture and a wider viewing angle, while others would simply choose randomly located somewhere between these twoExtremes.

The truth is that there are no scientific rules her. This does not mean that there are no guidelines that you should follow when planning a purchase or a big screen would-be home theater room.

SMPTE Recommendations and the THX certification standards:

The Society of Motion Picture and Television Engineers (SMPTE) recommends that the screen size for home theater use should occupy a 30 degree field of view - the horizontal plan - for the audience.Alternatively, the ideal TV viewing distance should be that the screen width takes an angle of 30 degrees to the straight position.

These have been 30-degree viewing angle seems to have adopted widely regarded as the standard in home theater and film.

The SMPTE directive is also in line with the THX certification that the standards recommend that the rear row of seats should have at least a 26 degree angle, and advocates, while an optimalViewing angle of 36 degrees.

It is believed that within these limits is a better perspective of the viewer get lost in the action movie itself.

Vision System limitations:

It is also the question of TV viewing distance on visual acuity. This does not represent the optimum viewing distance - but it refers to go to the maximum viewing distance of a few details about the image is lost.

Technically speaking, visual acuity is a measure of the Eye spatial resolving power and indicates the size of the angle to the smallest detail that a person can solve the visual system. A person with 20/20 (or 6 / 6 when expressed in meters can solve) normal vision of a spatial pattern from a perspective of one minute arc angle ie 1/60th degree of self to the eye when viewed at 20 feet away. In other words, a person with normal 20/20 Vision is capable of identifying an object with a height of 1.76mm at 20 feet is capable of.

With regard to the> TV viewing distances, these represent the border, some of the display window will no longer be resolved by the viewer vision system.

So how does all this translate into practice?

A few rules-of-thumb to help put into practice, the above-mentioned guidelines. These rules for viewing distance to screen width, not diagonally across the screen and therefore apply to both 4:3 and 16:9 display formats.

A general rule for TV displayDistance based on the SMPTE and visual acuity is the guidelines that the nearest TV viewing distance between you and your big screen TV should be about twice the screen width is limited (to be precise 1.87 x screen width for a circular circumferential angle of 30 degrees) , while the furthest distance, not more than five times the width of the screen.

This rule of thumb should give you a fairly good approximation for your TV viewing distance. It is not necessaryrepresent the ideal home theater viewing distance, but the limits within which your TV viewing distance should theoretically from the trouble zone.

In other words, more than twice the width of the size and the image scan lines, points and other video artifacts will be visible too intrusive - which spoil distractions that you will be movies. Move further away than 5 times the screen width and your vision system will no longer Be able to resolve all the details of the image.

But ...

It is also important to recognize that these maximum and minimum viewing distances in the light of the video signal definition should be considered.

A fully resolved high-definition TV (1080i, 1920x1080) supports a closer viewing distance than standard analog TV. Thus, while twice the screen width would be the ideal TV away just for an HDTV display, it would be a little too close for standard --> TV, in the case, three times the screen width would be the better choice.

The five times the screen width than the maximum visibility, while more than adequate for a standard analog TV picture is a bit too far away for a support person to the smallest detail of an HDTV picture - a three to four times see the screen width is a practical limit to the maximum viewing distance in the case of HDTV.

These rules-of-thumb workbest with large TV screen size in the range 42-inch or more.

When it comes to the use of regular size standard definition analog TVs in the home theater, ie up to 36 "/ 40" diagonal, the optimum viewing distance is between 8 feet and 12 feet. TVs smaller than 36-inch aren ' t big enough to have qualified for home theater use, its smaller screen size is not the desired effect on the viewer.

Vertical viewing angle & ScreenHeight:

For optimal viewing of the viewer's eyes should be level with the center of the screen.

Maximum vertical viewing angle: In the home theater set-ups in case this is not possible, the SMPTE guidelines suggest that the maximum vertical angle should be measured to the uppermost part of the projected image on the seated eye height from the front row middle seat can not be than 35 degrees.

This does not represent the optimum viewing angle, but the borderbe the observer are at an increased neck strain.

This maximum vertical angle limit is always from the front row, because these are measured by the extreme angle.

Minimum angle: Even if it does not appear to be a specific SMPTE or THX guidelines in this regard, but studies have shown that when the screen size takes less than 15 degrees vertical field of view, the viewer than the small picture is displayed.

PracticalConsiderations:

In a typical home theater set-up, you do not need to make really about neither the maximum vertical angle worry, do not even beyond the minimum requirements for an effective vertical angle cinema.

If one of the recommended TV viewing distance of twice the screen width to keep (as set forth in detail the top of the SMPTE Directive of 30 degrees horizontal field of view), you would automatically meet the minimum angle ofVision. The reason is that there is a fixed relation between screen height and width to your home theater screen aspect ratio of either 16:9 or 4:3.

And more than that would be in a typical home theater setup, it is very difficult, the maximum vertical angle from which you are subject to an increased neck strain is exceeded.

Considering that most home theater rooms are approximately 10 feet (3m) is high, the resulting vertical viewing angle of normal andwithin a maximum of 35 degrees in the SMPTE guidelines detailed - everything you need to do is just remain within the twice the screen width guideline for the removal of the beholder.

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How to Clean Your LCD TV screen

* Slightly scratched!

First, we need to understand a little background to know LCD screens, why we should be careful when cleaning. LCD stands for Liquid Crystal Display; molecules, under layers of the sandwich has polarized plates. These plates are usually produced by "plastic-like polymer materials, and like all plastics, they can be easily scratched or gouged, even just your finger nails! Therefore, cleaning LCDs require special care in cleaning when compared toThe old glass CRT monitors!

* What you need

- Isopropyl alcohol (aka isopropanol)

- Distilled water (not tap water!)

- A soft cloth (lint)

* Steps

1. Dilute the rubbing alcohol in a mixture with about 50% alcohol and the remainder distilled water.

2. Pour this solution into a spray bottle. Old Windex bottles are good, as in a fog spray pattern with just the right amount for a good coverage of the screen. The spray bottles, squirt anSingle-stream solution tend to drip everywhere.

3. Spray the mixture on a soft, lint-free cloth. Old T-shirts and microfiber car wash cloth are both good choices. Large towels are better because it helps reduce the risk of leaving streaks on the screen too much pressure.

4. Gently wipe the cloth on the screen in a circular motion in unison. Apply even pressure on the cloth and take care not to press too hard or scratch the screen with your finger nails!

*Proposals

- Expensive products you at the "computer screen cleaning" Gang of local computer shop to contain the same basic ingredients of alcohol and water! Some even contain other harmful chemicals such as ethylene glycol, which should be fine glass on older CRT monitors can not be used on LCD screens! Some of the additional chemicals can be harmful to the environment and health.

- Make sure to use mineral water! No tap water, you do not want heavy mineralSpots on the screen.

- Do not use tissue paper, they will leave lint and spots of paper stuck to your monitor. Also, they are too thin, risking damage by poking your finger nails.

- Do not use too much solution. If you do this, wipe it out with the cloth and less.

- You can also lint-free lens cleaning cloths stores from photography, but they are thinner, so be on your fingernails poking through careful.

- For a cheap ready-made solution from memory, you canalso CD / DVD cleaner, it's been designed so that plastic-safe, and is a simple solution of about 50% isopropyl alcohol.

* Some precautions

- Do not use Windex or other glass cleaner! These include ammonia, which is fine for glass, but will hurt your LCD screen!

- Try not to use the really cheap paper towels, like the hard brown in public restrooms. You can re-screen.

- Make sure you shut down your computer and your monitor, then unplug from the wall. Thisreduces the risk of electrical damage in case you spill some of the solution based on components.

- Do not drink isopropyl alcohol? It is poisonous!

- If you are unsure, you can create a small corner of the screen, the first test.

Follow the instructions and suggestions above, and your faithful LCD monitor should you year for clean, clear, trouble-free operation.

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What is the Best Flat Screen LCD HD TV to Purchase For the Money?

Do not give up on tubes ... emerging markets today with flat panel TVs such as plasma and LCD, most consumers are very poorly informed and believe that the quality of a flat screen is better than a cathode ray tube (CRT) TV. That's not true. The image quality of a plasma or LCD TVs far below a CRT, such as the Sony KD-34XBR970. Even worse, more and more people are buying these flat-screen TV as a "status symbol" and do not understand true quality. Why do you think studiosCRT monitors used in the production and processing rather than a plasma TV? Most studios want the best, most accurate picture possible, so that they are using CRT monitors. The quality of the Sony KD-34XBR970 is similar to a studio monitor, and beats all other shows regardless of cost. The dot pitch is so fine and the picture has so much realism to the point where all the other ads look dull and dirty in comparison. Convergence and geometry is out of the box perfectly, and saw the crowdfantastic. His picture was depth and dimension, in contrast to the flat look of most plasma and LCD TVs. HD channels look great they are very real and are not unduly increased. The Sony on-board processing and the Democratic Republic of Congo is perfect and does not look pixelated at all sources. The picture is good, clear, and exceptional detail.

One limitation to remember: The sentence will be deployed in 'Vivid', which is intended for your attention in the shops with a bright picture, but inaccurately delivered. It is fartoo bright and too sharp. You can see contours and image artifacts in this mode. If you keep the TV in Vivid mode, you are guaranteed to burn the tubes in the shortest time and shorten the life of the TV. In addition, the vivid mode is very accurate in color reproduction. I calibrated my set in the 'movie mode', white with an image (level) setting of 20/63 and a brightness (black level) setting of 30/63. Remember, it is very important to the "image "setting lower because itControls the amount of white light on the screen. If you do this, the tube takes a very long and you will be an extraordinary picture. On the other hand, controls the "brightness" setting the amount of dark areas you see in the picture. If you use this device allows you to see more dark areas in a film that will not burn but the pipes or compromising image quality. An accurate picture is better than a light.

Finally, the color decoder adjustment, as she points out, red strongand makes people look red or brown. If you change the 'color axis "attitude of" to "standard" monitor ", the colors are much more accurate and vivid. If you set this setting correctly and make good on, it is the best picture of a TV production and one last very long. (My old XBR TV is 16 years old and still.) I have a neighbor who has spent 10,000 U.S. dollars on a plasma TV and the picture quality much worse than this set. What kind of TV wouldDo you buy? Status symbol is more important than image quality? Remember that after reading this review you are a much more educated consumer.

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