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Darkening Lcd
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I had been salivating for about an year, desperately wanting a LCD monitor for my computer but the prices were crazy so I decided to wait a while. A couple of months ago while I was in Dubai I decided to buy a LCD monitor because the prices had dropped by then. I went in search of a 17'' monitor but ended up buying a 19'' screen. This was because, for the money I spent in Dubai for 19'', I was getting 17'' in India. And as we all know...size DOES matter....at least in monitors!
I did some research before I bought this monitor which I would be delighted to share.
So why did I want a LCD in the first place? The advantages are many - easier to move around/clean as they are thinner, lighter and take up much less space, less eye fatigue, more energy efficient than a CRT (less power consumption) and of course LCD screens look good.
The first thing I thought about was the price obviously. I didn't want a very expensive model but I wasn't going to buy a ''no-name'' brand either. Then came the size - I was using a 17'' Samsung monitor so I7'' was good for me. During my browsing, I saw how beautiful things look on a 19'' screen and after comparing the price with India, I went in for a bigger screen. The next thing on my list was the response time. I wanted a fast response time (8-12 ms) so that when I played games, the image didn't ''ghost'' (motion blur). My Benq screen has a response time of 8 ms and I have not seen any blurring at all. I was also careful of the ''dead pixel'' policy of the maker. You see, LCD screens are notorious for dead pixels - even one dead pixel in the middle of your screen can ruin your LCD experience. Before you buy your LCD, get the salesperson to display a full white image on screen first followed by a full black image (easily done in Microsoft Paint) so you can weed out dead pixels. Check the dead pixel policy of the company. If you do find dead pixels in the warranty period, will they replace your monitor? Do try to test your LCD monitor before buying it - make sure that the salesperson gives you the same monitor and not a new untested one.
A couple of things to remember about a LCD screen - it has a field of vision restriction which means that you have to sit directly in front of them to get a good view. The better the product, the larger will be the field of vision and there will not be a darkening of the screen from a ''not in front'' position. All LCD monitors have, what is known as, a ''native resolution'' which essentially means that they give their best performance at that resolution. For example, my 19'' monitor has a native resolution of 1280 x 1024 (SXGA). Any other resolution looks washed out and blurry. Choose your resolution depending on the size of the screen you buy. For me the best resolutions are as follows: 15'' - 800 x 600 or 1024 x 768; 17'' - 1024 x 768; 19'' - 1280 x 1024. Physically try out various resolutions before you buy the screen - maybe the salesperson won't have a clue about the native resolution.
Game enthusiasts and DTP people will still prefer the CRT screen as they can buy bigger screens for the money they spend on LCD screens. In addition, the colours are brighter and there is no motion blur on CRT screens (provided you have a good video card). If you have space limitations or work extensively with ''words'' - word processing, Internet browsing etc, go in for a LCD monitor, provided of course you can afford it. Some LCD monitors come with speakers which makes them perfect for offices. But serious music lovers and game enthusiasts will hate the tinny sound.
I am very happy with my Benq FP91G screen and would recommend it without hesitation. Other companies like Acer/Samsung/Viewsonic make LCD screens which are equally good but prices differ. So sniff around a little before you splurge.
I am a Merchant Navy officer living in Mumbai. When I am not sailing the high seas, I enjoy surfing the net, playing computer games, swimming, listening to music and reading books.
The Amazing 3Dtv
Ladies and gentleman, it's 2010 and also the 3D Tv revolution has arrived. We spent the much from the last decade talking about Plasma Television, LCD Television, and HDTVs but those talks are fast getting close to their expiry date. The 2nd decade in the second millennium is going to be all about the 3-D Television set. If you've been living under a rock for that past few months, and haven't been following the out-of-this-world-buzz that 3-D TVs are generating, then let me catch you up on the whole affair. In 1844 a man by the name of David Brewster devised stereoscope - that was the birth of 3D imagery as we be aware of it. However today's world have all but removed involvement in the format as content was scarce as well as the colored glasses needed to appreciate the 3-D experience became more of a burden than a useful tool. That is until today, as well as the recent technological breakthroughs made by the top Tv set manufacturers to bring true 3-D Television set viewing experience in the centre of the lounge room.
To comprehend how 3D Television set technology works, one must know how our eyes work. Our eyes are several centimeters apart from each additional and so obtain the input picture from different perspectives. Our brain uses that information and it is smart enough to mesh the two into one single view, making depth, and making what we see 3 dimensional. Tricking the brain in this manner is not any straightforward process, and for years the simple and cheap technology was making use of colored glasses that had the large problem with limiting the number of colors that you could enjoy a movie in. Panasonic is one from the manufactures that has created a auto stereoscope method that has the capacity to make 3D watching doable with no need of glasses whatsoever. One big hurdle with obtaining people to upgrade their televisions to 3D is that there's not a lot of viewable content at the moment.
A second large hurdle is that everyone wanting to watch the 3DTV content will need a pair of special 3D glasses. The glasses have to view the 3D effect, although 3DTV's will function perfectly well as standard 2D screens for the time you're watching 2D content. For that upcoming 3DTV's we're not talking cheap, disposable red/blue glasses, either.
The 3D glasses required for the new 3-D TV's are what's known as "active shutter" which means they synchronise with the Telly showing images alternatively towards the left eye then the right eye. While one eye sees an picture, the other eye sees nothing as that side of the glasses is darkened. Your brain stitches the switching images into a coherent 3D image.
Of course, you'll need more than one pair of glasses if there's more than one person inside your household.
The graphic card manufacturer, nVidia, is already offering glasses and software which changes almost any computer game into a 3D version, as long as you have a graphics card with enough power and a screen which can refresh at 120Hz, enough to provide each eye a flicker-free view in the action. Most people's computers and monitors won't be adequate, but avid gamers is going to be quick to upgrade once they see the impressive 3D effects and the added immersion 3D gives game play.
About the Author
We offer 3D TVS at our web site.
sharp tv 37 lcd screen lightens and darkens as picture moves?
I have just bought a new sharp tv and I am still trying to figure it out but I noticed one thing , I was watching the hockey game tonight and as the players went up and down the ice the picture would go darker and as it went to the centre of the ice it would lighten up again .full hdtv 1080p
LCD TVs have a difficult time producing good black levels. To compensate for this flaw, many LCD TV manufacturers have resorted to the use of dynamic back-lighting to cheat, making you think your LCD TV has better blacks. These features, like Sharp's "Active Contrast", sense a scene's brightness. They turn down the back-lighting during a darker scene and turn it up during brighter scenes. The problem you are experiencing is that the camera's movement over the arena creates different scene brightness levels and your TV is automatically adjusting the back-lighting. Turn off the "Active Contrast" feature in your "Advanced Picture" settings and you shouldn't experience this problem again.
Additional Details: I have seen this happen with scrolling credits and have heard of gamers having the same problems. This occurs on Sony, Sharp & Toshiba products all with the dynamic back-lighting feature enabled (Sony - "ACE"; Sharp - "Active Contrast"; Toshiba - "DynaContrast").
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