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Tuesday, 16 December 2014

Technology in Television

Technology in Television

History of Television

Television, transmission and reception of still images or by electrical signals, especially by means of electromagnetic radiation using techniques radio and fiber optic cables and coaxial moving. Television has become a major industry, especially in industrialized countries, and an important means of communication and source of entertainment for the home.
television sales online has been increasing day by day and flat screen tv ,55 led tv deals and 32 inch tv are becoming cheaper . led tv prices had come down this year, lowest price of tvs had changed the mind of the consumer to buy led tvs according to the changing in technology.Television is a varied use in industry, eg for monitoring in inaccessible or dangerous for humans places; science, for example, in microscopy of tissues (see 

microscope); and education.

The HD and 4K TVs best for every budget

What TV should I buy?
 All your questions answered purchase

There has never been a better time to buy a new TV. Gone are the days when 32-inch TVs weighing 16 tons and cost £ 1,500. These days you can pick up a 50-inch LCD TV for around 300 pounds and biggest flat screen tv sales had been increased in 2014


LCD panel technology has well and truly matured, and while brands such as Sony and Panasonic push the boundaries of performance, also will find names like Toshiba doing interesting things in the television sector budget.

The practical result of this is that no matter what you like, how big you want to go or how big your budget is, there is a perfect TV out there for you.

So which one is right for you, your family and your living space? This shopping guide, we'll walk through everything you need to know about being a new TV.

What types of TV are out there?

There are lots of different types of screens out there, all working in different ways to produce the same results. Each technology has its own unique strengths and weaknesses so here are some basics to keep in mind:

Until recently, all backlit LCD TVs are always active, CCFL (cold cathode fluorescent) lamps. This technology aging has been replaced by the method of superior LED on more expensive sets, but still standard on some cheaper models.

LED TV: Direct LED
These screens are backlit by a matrix of LEDs (light emitting diodes), directly behind the screen. This allows localized dimming - meaning immediately adjacent areas of brightness and darkness can be displayed more effectively - and greatly improves contrast. LED TVs are also more energy efficient and capable of a wider than CCFL sets palette.

The LED backlight is mounted along the edges of the panel. This arrangement allows the radically sleek and offers contrast levels than CCFL screens, but cannot achieve the same quality of image directly lit LED sets. However, they come in much cheaper so more LED TVs out there now use this technology.

The backlighting on OLED (organic light emitting diode) games is achieved by passing an electric current through an emissive electroluminescent film. This technique produces much better colors and higher contrast and also allows displays to be extremely thin and flexible. This is the holy grail of display technology and only in 2014 did a big screen TV OLED go on sale. So it is new, expensive and best brands are still struggling to get their heads around.

Plasma TV
PDP (plasma display panel) television panels using glass containing millions of tiny cells filled with a mixture of inert gases. Electricity excites the gases, causing the pixels to light across the screen. Plasma, while undoubtedly superior to LCD in terms of contrast and color accuracy is only feasible on large screens of 42 inches (+) and has been dropped by all but a handful of manufacturers.

Curved TV
Some manufacturers are now making TVs that have slightly curved screens. But unlike old CRT TVs, the curve is inward rather than outward. The idea is that this makes each pixel equidistant eye, providing a more satisfactory image. However, there are drawbacks to this type of screen - the main thing is that if you sit far enough to one side - over 40 degrees or less - the curve starts clearly affect the geometry of the image, foreshortening content near you and compressing the image center.

What resolution should I go for?

HD TVs come in two resolutions. Sets with HD ready logo meet the requirements of the European Industry Association of Information Technology and Communications (EICTA). These criteria include at least one HDMI port and component video inputs and a resolution of at least 1024 x 768 pixels. Meanwhile, Full HD TVs have a higher resolution of 1920 x 1080 pixels.

Ultra HD and 4K
Ultra HD resolution is exactly four times Full HD - 3840 x 2160. This means a much more detailed picture, with content that requires more bandwidth and storage space. 4K TVs tend to be good at optimizing HD Ultra HD, but currently there are very few options for native 4K content.

What type of tuner need?

TV in the UK have two types of tuner: DVB-T2 (Freeview) and DVB-S (Freesat HD). Some TVs as many sets of Panasonic have both tuners on board, but most do not. So should you go for?

Free view HD
TDT is the natural successor of the analogue television signal old, flying the flag for open TV through a traditional antenna. So its decision that the tuner to go well could be decided according to what the receiving devices already have attached to your roof. If you have an antenna only traditional TV, Free view is the obvious choice. Similarly, if you're buying a TV for a second room, you may need to rely on a portable antenna again your best bet would Free view.

Free sat HD
Free sat is similar to DTT that is free-to-air, but different in that it is delivered via a satellite dish. Uses the same satellite Free sat, Sky HD - Astra / Eutelsat satellite, which is in heaven at 28.2E. This means that if you have a Sky dish can easily connect a TV or Free sat box without having to move. Free sat HD is ideal for large TV lounge, offering images slightly higher quality than the TDT, have fewer problems with the signal, and also has a larger selection of channels in both standard definition and high definition. It will also probably be the first to bring 4K TV channels when finally released.

TechReady what do you recommend


32-inch TVs

The perfect size for television in the room or room’s smaller ensembles

Most rooms can not physically take TV much bigger than 32 inches, so this size, by far the best for a lot of people in the UK. But within this division in size, lots to choose from. A basic set HD-Ready can be found for less than 300 pounds is you look hard, but is just as easy to spend over £ 2k of the best. There is only one certainty in this size - your new TV is an LCD TV. If you're lucky, you might have LED backlighting, but it will be a plasma; LG used to make plasmas at this size, but there is not currently for sale. 10 best 32-inch TVs in the world today

42 inch TV


The sweet spot for plasma TVs offers a lot of bang for your buck

Once known simply as 'plasma screens' in the collective consciousness, the size of 40-42 inches is where sleep-screen TV began in late 1990 - and which is still in its most innovative and better. Now much more varied, with plasmas rubbing shoulders with (and quickly be outnumbered by) LCD TV and LED TV ultramodern change image, 40-42 inches remains the sweet spot for anyone not too worried about ruining the interior design living room. Besides being the fastest growing sector of the market, this size also offers possibly the best value around televisions. Home theater junkie’s gravity have gone to 50 inches and larger screens, leaving this category a swarm of you slashed prices. Top 10 TVs 40 to 42 inches

46 inch TV

TVs of 46 and 47 inches

Offering top of benefits, here's where it gets serious

There was a time when plasma screens reigned in the market for 46-inch television. But in the same way that a meteorite wiped out the dinosaurs, the second coming of LCD TV is the invasive species has done for plasma. We remain strong advocates plasma TechReady, make no mistake, but the technology is slowly dying in this size. The old school CCFL technology has been replaced by LED scanning backlight and technical wizardry to LCD technology feasible in large sizes. So most of the TVs in this size range are now LED side of the wall, and that's not necessarily a bad thing. LED TVs these days are brighter than plasmas, are thinner and there is much more variety in the program. So here is our selection of the best 46 inch, 47 inch and now TVs 48 inches for reading.. 10 best 46 and 47-inch TVs

50 inch TVs

TVs 50 to 55 inches

Where do you begin the home theater experience?

The size in a home theater turns from dream to reality, which is also in this screen size 50-55 inch 3D TV is becoming quite convincing immersive and impress. This size, last year dominated by Full HD models now being invaded by Ultra HD 4K models. While LED technology has come a long way toward condemnation of plasma for a role outside of the television industry in 50 inch and above, plasma really comes into its own if you can find one. Most home theater fans still swear by plasma, with their film colors and deep blacks to make a real movie-watcher's paradise. But 2014 sees the first batch of panels with LED backlight 50-inch production line, a development that further marginalizes plasma technology in one of the sizes that were previously dominated. If you are looking for a dream experience of seeing movies, check out these beauties home theater. 10 best 50-inch TVs, If you want the best, you need to pay better

If you're feeling extravagant or want to furnish your living room large with a great television similarly, 60 inch or larger TV will definitely make a statement. There truly massive TVs available these days, carrying Ultra HD 84 inch screens as 84LM960V LG, Toshiba 84L9300, Sony KD-84X9005A and Samsung UE85S9ST. But for most of us, 65 inches of screen space is sufficiently luxurious, while remaining manageable. Gone are the days when older than 60 years were mere observers; expect all the subtleties of a good room ready TV must have at tuner Free view HD, maybe even Freest HD tuners, too, as well as applications of smart TV and 3D compatibility. There are a handful of plasmas here - it's the size category, where technology original flat screen television, truly excels. But as the plasma vanishes, the true history of this category is increasing 4K LCD screen. So what is the best 60-65 inch TV for you? 10 best 60-inch TVs in the world today

TV 4k

4K Ultra HD TVs

The last big thing on giant screens

Everyone wants a 4K Ultra HD TV! Yes, okay, we all know that is not much 4K source material to properly display the stunning image quality, but Netflix, at least, has begun offering 4K content. Also there could still be a 4K Blu-ray later this year format, and before you know it you will test transmissions and perhaps even a 4K TV channel Sky or BBC. It's all about future proof, although a little more than that; some of the first TV series Ultra HD pump out best ever Blu-ray images, thanks to some tech scaling wonderfully adept. The birth of 4K could also lead to the re-birth of 3D - it just looks much better in the higher resolution. The big hurdle - as always - is money, but there are deals to be had on and, better yet, some sumptuous fillings designs new innovations. The race is on 3840x2160 pixels. 10 best 4K TVs in the world today

What else should I know?

Buying a new TV can be traumatic and confusing - unless you're armed with our guide to the many pitfalls and confusions that await you...

Buying a flat screen TV is a significant investment and one that cannot afford to take lightly. So back to the nearest store and grabbing the first plasma or LCD you see do not get the best deal, the screen that suits your needs, or equipment you need to get the most out of your new purchase .

Size Matters

People tend to choose the size of your flat panel TV based on the amount of space you have for it, this is not necessarily wise. Flat TVs take up much less space than you might think, so that your new TV can finish one or two feet away from your point of view, making the image appear smaller.

Also, high definition, you can have a bigger screen and the same distance vision without having to worry about seeing the flaws inherent to the source. Lack of noise HDTV means the ideal place to sit on the screen distance is three to four times the height of the TV.

How to calculate the best size for you TV

How to calculate the right size HD TV:

The trick here is to make sure that your TV is big enough to fill your line of sight, but small enough to be loud and clear. Remember, if you have the sole intention of seeing, the largest sources of standard definition is the screen gets, the worse the image will look.

The ideal screen size can be calculated by multiplying the distance you intend to sit away from it by 0.535 and then round this to the nearest size.

So if you feel 80in away from your TV, the ideal size is 42 inches (80 x 0.535 = 42.8).

What features should I look for?

The features are too numerous to go into here, but here are some things you should consider.

Displaying photos: If you have a digital camera, a TV that has a slot for memory cards or a USB connection to a card reader allows you to view your photos on the screen.

These are some of the things we look for when reviewing a screen, so you should too...

Contrast: bright whites must not have any signs of green, pink or blue in them, while the black should look solid, unwashed, gray, green or blue.

Color: Look how shiny and strong they are; how silent are their edges; how areas 'spotted' richly saturated are and how natural skin looks, especially in dark scenes.

Fine details: How much texture gives the screen? A tree looks like a green package, or you can view the individual sheets

Edges: Check if the ghost, bright and jaggedness halos, especially on curves effect.

Movement: Check objects and movements of fast moving camera spreads or blur, dragging, shaking and bubbly crazy noise.

Image artifacts: Look blackness, bands of color, grain, stains, dot crawl: anything that seems to have added the image processing TV or TV tuner weak. Playing with the picture settings for a TV before making a final decision. The factory settings are rarely good for everyday vision & lowest price tv will tempt u to buy, be cautious before buying.

And the sound?

To provide the best quality audio to complement the images, the TV must be connected to a surround sound system, but this is not always an option. Therefore, this is what we hear to test the speakers of a TV:

Bass: Deep, rounded rumblings that do that all speakers rattle or distort, cramping or overwhelm the rest of the sound; but expand when necessary.

Members: Voices should sound open, rich and clear, not boxed, nasal or thin.

Triples: acute effects should sound clean, rounded and smooth in strong scenes and should not dominate the sound stage.

Sound stage width / depth: Good TV should throw the TV sound, sideways, forward and backward, to give a new dimension to what is on screen, without losing consistency.

Questions to ask before buying

Taking the time to consider these questions will make choosing the best television easier...

HD or 4K?

4K TVs are stunning and although there is currently little native 4K content to enjoy the good are capable of HD 4K luxury fine. That said, unless you're buying a very large TV - we're talking about 65 inches plus - Full HD should be adequate.

What size do I need?

This is dictated by the dimensions of the room where the television is going and how much money you are willing to spend. As a rule, the work of how far the set will be sitting (in inches), multiply that distance by 0.535 and then round it to the nearest size screen. Note that a small tele decent is often one larger more sensible investment, one less accomplished. And if you're buying a 4K TV, you can sit closer because of the higher resolution.

How many HDMI jacks need?

For TV lounge you should be looking for at least 3 HDMI inputs. To attach a set-top box and gaming consoles, etc., these HDMI ports fill up fast.

Can I connect my, analogue kit, oldest?

Most new sets carry no more than two SCART, S-video while rapidly approaching obsolescence. Check that your new TV can connect to older dig boxes, VCRs or DVD covers that you may want to connect to it.

What kind of image I rather, LCD or plasma?

LCD and plasma's produce different types of images. Generally speaking, the ancient usually are sharper, brighter and more densely saturated, while the second tends to be richer, more natural and produce better black levels. Decent distributors should be able to organize a demonstration from side to side for you.

I want to hang the TV on the wall?

First, you need to consult a construction expert to verify that the wall in question is strong enough to withstand a flat screen. Then see if the set you want is designed to be mounted on the wall and, if so, ask if the appropriate support is included in the basic package or as an optional extra.

Can I be connected to a home theater?

If the answer is no, you may want to think more carefully about audio performance as a whole. Look for a screen that can go as high as you need without distortion or rattle cabinet. Consider how dialogue and the amount of low end rumbling bass is able to make sounds.

On the contrary, it makes no sense to pay more money for exceptional built-in speakers if you already have a decent theater house.


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