What is best TV to buy, Which Flat Screen TV is the best
Before deciding on what is the best TV to buy, an understanding of TV Specs is necessary. Our site will answer all your questions about TVs, important TV features and TV specs explained in detail. Deciding on what is the best TV LED, LCD or Plasma depends on what TV features important for you. After going through our site you will have no problems in deciding which flat screen TV to buy.
We aim to be your Flat Screen TV buying Guide and will make you clearly understand the difference between LCD, LED and Plasma TV. You will be able to select the best TV for picture quality, long lasting TV screens and the best value for money TV.
TV types explained
Televisions can display a picture on the screen using four different types of technologies. They are CRT or 'Cathode Ray Tube'; LCD or 'Liquid Crystal Display'; 'Plasma' Television and the newest OLED or Organic Light Emitting Diode technology.
An LED TV is simply an LCD TV with LED (Light Emitting Diode) bulbs instead of the usual CFL lights as backlights. 3D TV is an LCD, LED, Plasma or OLED TV which has the additional capability to play double images, one for the left eye and the other for the right eye. When these double images are watched with special glasses, our left and right eyes see different images and we feel we are seeing a 3D scene. A brief summary of these TV types are explained in brief here but each of these are explained in much more detail on separate dedicated pages.
CRT or 'Cathode Ray Tube' TV
These were the TVs our fathers and grand fathers watched. You can still see some of these TVs, but they are becoming rarer. In US and Europe they have stopped production and sales of these types of TVs completely. CRT TVs disadvantages are that the maximum size normally available is only 29 inches, the picture quality cannot be compared to modern LCD and Plasma Televisions and they are bulky and heavy.
Since this site is to help you to buy the best TV, we will restrict discussion of the CRT TVs. For historical interest, CRT TVs were the first Televisions to be invented. In 1934 'Telefunken', a German Company, was the first to produce commercial Televisions using Cathode Ray Tubes. These were black and white TVs, colour TVs were commercially available from early 1950s.
Types of Flat Screen TVs, Difference between LCD, LED, Plasma TV
LCD TVs are Flat Screen TV’s making use of LCD (Liquid Crystal Display) screens which have millions of crystals sandwiched between two glass panels. This assembly is known as the LCD panel. When the liquid crystal elements in the LCD panel are charged with electricity using individual transistors for each pixel, the LCD crystals allow a certain amount of light to pass through the LCD screen, the backlight being produced by either of two sources, by a CCFL (Cold Cathode Fluorescent light) or by LED (light emitting diode) bulbs.
In the case the backlight is from a CFL light source, then the TV is simply called an LCD TV. But when the light source is from LED bulbs, then it is referred to as an LED TV. It should be noted that an LED TV has the same LCD panel at its heart, and the only difference between an LED and LCD TV is the backlight source. The CFL lit LCD TVs are normally thicker than LED TV because the LED bulbs are much smaller and can be mounted on the edges as in an "Edge LED" TV.
The LED lights can also be placed on the back of the LCD display panel array, but this will make the LED TV thicker than the Edge lit LED TV. This arrangement can result in a new type of LED TV called 'Local Dimming' LED TV. In a 'Local Dimming' LED TV, the individual LED bulbs behind the 'LCD Panel' can be dimmed in dark areas of a TV picture and lit bright in areas where there are bright scenes. This arrangement will improve the 'Contrast Ratio' of the LED TV and make blacks appear darker and whites brighter. One problem which can be caused in LED TV with local dimming is called 'Blooming Effect'. Blooming effect on LED-backlit LCD TVs is a problem where light from brighter areas of the TV picture bleed into darker areas of the picture and makes a halo effect on the adjacent black areas of the picture. Some manufacturers are even trying to put different color (red R, green G and blue B) LED bulbs, instead of pure white bulbs (you get white light if the 3 bulbs, RGB are lit at the same time). This arrangement is being used to light the back of the picture with the same color light and thus improve the color and thus the picture quality. More on our page 'LCD LED Plasma Compared'.
What is IPS Screen
IPS stands for In Plane Switching. IPS LCD and LED TVs are now considered the top of the range in LCD and LED type TVs. LCD or LED screens are mainly of two types: In-Plane Switching (IPS) and Twisted Nematic (TN) type. IPS is the superior technology because it gives much wider viewing angles and much better color to the TV screen. Contrast ratios were not so good in the earlier days, but now with the newer versions of Super IPS screens the contrast and other TV performance parameters have improved vastly.
Plasma and LCD TVs look alike but they have totally different technologies under the hood. A Plasma TV has thousands of gas filled cells, each containing a mixture of rare gases (neon and xenon). These cells glow when charged with electric voltages to produce different colors. Each of the plasma cell pixels light up individually to varying colors depending on the electric charge applied to them. Thus plasma TV usually has a much higher contrast ratio than an LCD TV which has a back light applied to the whole back surface.
Plasma TV advantages over LED and LCD TV are, better Viewing angle (clearer picture from the sides of the TV), fast motion picture without blurring of fast moving objects and is usually cheaper than LCD or LED TV. The disadvantages are that it is usually heavier and may be subject to 'Burn-in'. More on our page 'LCD LED Plasma Compared'.
When watching sports on a 3D television the ball literally seems to come out of the screen. 3D TVs are the latest in TVs. 3D TVs are available as 3D LCD, 3D LED and 3D Plasma TV. The leading manufacturers of 3D TV are LG, Panasonic, Philips, Samsung, Sharp, Sony, Toshiba, etc. (names in alphabetical order). 3D Television is a method by which the picture is shown on the TV in double image, one image for each eye, the left and the right. You need to wear special glasses to see 3D effect. You can switch on and off the 3D effect, so it is possible to watch normal TV on a 3D Television. 3D Televisions are normally the highest model on offer from manufacturers. When the 3D effect is switched off, it becomes a normal high end HDTV. More from our page on 3D TV
What are Smart TVs, Upgrade to Smart TV
Smart TVs are simply any TV which can be connected to the internet. Most TVs can upgrade to Smart TV with special internet connecting appliances. The Smart TVs now on sale come with inbuilt Apps like Social networking Apps Facebook and Twitter, Streaming Movie Apps like Netflix, Hulu Plus and Pandora, other Apps like Photo Sharing, News, Sports News and Weather Update streaming, etc. You could also watch Youtube Videos on TV direct without the need of a computer. Online Gaming is another feature. In fact, once online, the Smart TV is capable of doing anything which a Laptop Computer can do online. Depending on your TV brand, the built in Apps can be different and the TV manufacturer usually maintains an Apps Store from where you have a wide selection of Apps. To connect to the internet you may have to buy an additional USB adaptor, but now a days most Smart TVs with built-in WiFi.
OLED TV, Best TV for picture quality
The newest type of production TVs are the OLED TVs (Organic Light Emitting Diode TV). Instead of the LCD screen in a LCD TV, OLED TV has an organic light emitting diode screen, which uses organic chemicals based electroluminescent layer as the light emitting medium. OLED Screens are at present being widely used in Mobile Telephone screens commonly known as AMOLED (Active Matrix Organic Light Emitting Diode), PDA screens, Laptop screens and a few TVs. They are expensive now, but expected to get cheaper soon.
An OLED display is similar to a Plasma Display in that it functions without a backlight and thus has very high contrast ratios. The TVs can also be made very thin, in fact it may be possible, in future, to have TV screens which are curved and flexible. DuPont stated in a press release in May 2010 that they can produce a 50-inch OLED TV screen in two minutes with a new printing technology. If this works out, then OLED TV prices may hit the bottom and we may be looking, in the future, at giant OLED Screens, 100 inch and more, mounted like a painting on walls. OLED TVs consume less than half the electric power now being used by the most efficient TV, the LED TV. This could well be the death knell of LCD, LED and Plasma TVs and also of the rear projection TVs and front projectors. The OLED TV holds promise of being larger, clearer with better pictures and better contrast ratios than all the present day TVs. Please visit our page OLED - TVs
What to look for when buying a TV
When you are shopping for your TV the Sales persons will always volunteer to help you out. We will not say that the Sales persons are crooks, but they will try their best to convince you to buy TVs on which they get the maximum commission. They are normally not bothered about you getting you the best TV within your budget. The tricks the sales person plays could range from showing high quality Videos on the TVs they get maximum commission. The TVs he gets the least commission could be the best TV for you, but you are steered away from that and most probably that TV will be showing bad video quality pictures or may be, the TV settings are intentionally set as to show bad quality pictures. So do not fall for the Sales Persons tricks. You must be educated on TVs and you should be able to pre-select the TV or TVs you want, before going to do your TV shopping. We do not promote any brand, our aim is to give you unbiased info and tell you how to decide on buying the best TV for you. Once you go through our pages you will have no problems in deciding on what is the best TV LED, LCD or Plasma and also to compare LED, LCD and Plasma TV with each other.