Certain guidelines will assist you in purchasing a suitable 32-inch LCD TV of your choice. The colour offered by the LCD TV is the main thing to consider while intending to purchase it.

Standard LCD TVs possess some light source coming out of the TV even if they are displaying the colour black.

You can search for endless black feature or certain technology to provide deep blacks. A high contrast ratio means that colours appear brighter. The viewing angle is a significant aspect to consider as the picture generally looks deformed if you view from a tight angle.

Certain LCD TV sets possess extra technology to diminish this trouble. Besides these it really depends on how you plan to utilise your latest 32-inch LCD TV.

Modern LCD TVs possess web widgets, RSS feeds and many other functions to permit you to avail Internet content on your TV. It is not at all important for you if you are not utilising the Internet services. Possessing various preset modes will be fine.

The LCD TV will automatically optimise itself for playing various fast action games. It is significant that there are no delays in the picture that is displayed.

The light sensor plays a vital role in the LCD TV. A TV, which can trace the ambient light and adjust itself, will create a great difference. Using a glare resistant screen will also be better.

Standard TV that transmits audio & video information on cables in wavy pattern. Typically, CRT type TVs display analog signals using NTSC tuners.

Aspect ratio

Aspect ratio refers to the shape of image or TV screen in terms of width and height. Standard aspect ratio is 4:3 while widescreen has an aspect ratio of 16:9. Put simply, the width and height of standard TV screen has 4 units and 3 units respectively.

4:3 Aspect ratio

The standard aspect ratio of old TV sets like CRT.

16:9 wide aspect ratio

Typically, modern television sets like LCD TV and Plasma TV are designed to provide greater picture size to resemble movie screen. So, these flat panel TVs and DVDs come with wide screen format of 16:9 aspect ratio.

Auto power off

This feature enables the TV to power off and go to stand by mode, depending on the settings.

AV input/socket

Connection option available in LCD TV so that you can connect it to various input/output devices like DVD, camcorder, game consoles etc.

Burn-in

Also known as screen burns, a common defect found in CRT type displays and plasma TV sets. When brighter image is left on the screen for a prolonged time, the phosphors on the pixels get worn out and leave a permanent image known as burn-in. Burn-in does not affect LCD TV screens.

Component video input

RGB quality connection option available on larger TVs like LCD and Plasma TVs and other devices like DVD players. Component video connection offers better colour quality and brightness & contrast levels.

Composite input

Input used to connect to standard video sources like VCR, analog TV etc.

CRT

CRT stands for Cathode Ray Tube. CRT type television set has a CRT picture tube made up of phosphors and an electronic gun to illuminate the phosphors.

Dolby digital sound

Digital sound surround system. Dolby sound systems use multiple sound tracks and a set of speakers positioned all around the viewers to produced theatrical sound effects.

DTS

Digital Theatre System. Just like Dolby sound system, DTS is used to encode sound information in digital sound surround in DVDs and movies.

DVD

Digital Versatile Disc. Optical disc with high storage capacities and used for encoding a full length of movie in 480p resolution. DVD movies offer much better video and audio quality.

DVI

Digital Video Interface. DVI connection enables to transmit digital video information between the devices

EDTV

Enhanced Digital Television.

HDMI

High-Definition Multi-media Interface. HDMI allows your LCD TV to connect to high-definition sources like HDTV broadcasting, HD DVD, Blu-ray or DVD.

HDTV

High Definition Television uses higher resolutions and offers superior picture quality and greater sound clarity. Typically, HDTV uses a set of high definition resolutions like 720p, 1080i and 1080p.

Half-life period

Half-life period refers to the duration at the end of which phosphor based displays like CRT televisions and plasma TVs become dimmer by half to the original brightness. Plasma TVs have a half life period of about 40,000 hours.

Interlaced scan

A scanning system used by video processor to produce the image. Interlaced scanning produces inferior picture quality, especially, on larger TV sets as the scanning lines are more visible.

Liquid Crystal Display (LCD)

LCDs include lot many devices such as digital clocks, cell phones, GPS that use the properties of liquid crystals. Typically, liquid crystals allow the light either in varied amounts or block it off depending on the electric power.

NTSC

Standard of video signals used in VCR tapes and DVDs. NTSC standard is followed in TV broadcast in countries like the USA and Japan.

Picture in Picture (PIP)

A feature that allows TV sets to watch more than a channel on the screen. While the main image is on the screen, you will be able the second image in the corner of the screen.

Pixels

Small dots that collectively make an image or the screen. High definition TVs like LCD TVs have more pixels than standard TV sets and have a resolution up to 1920 x 1080 pixels.

Plasma TV

A flat panel TV that is rival to LCD TV. Plasma TVs use gases like neon and argon to produce the image and come with as much resolution as LCD TVs. Plasma screens produce deep black levels but can be susceptible to screen burns.

Progressive scan

Progressive scanning of pixels produces better picture and reduces scan lines and flicker.

1080p

The highest possible high definition resolution of 1920 x 1080 pixels. LCD TVs with this resolution produces stunning picture quality but are quite expensive.

Resolution

Measure of picture details or pixels in square inch. LCD TVs come with a minimum 720p resolution.

Screen burn

A common defect that affects phosphorous based displays like CRT and plasma TVs. This occurs when bright image is left on the screen for a prolonged time. The affected phosphors become sluggish and produce a permanent image on the screen.

Standard definition

Resolution less than 480p.

S-Video output

Connection available in LCD TV that allows you to connect it to devices like VHS and DVD players. S-video connection provides high quality video input/output.

SCART

A type of connection that allows audio/video transfer between LCD TVs and devices like VCR, games consoles etc.

SVGA

Video resolution of 800 x 600 pixels.

SXGA

Video resolution of 1028 x 1024 pixels.

TFT

Thin Film Transistor. TFT technology helped LCD screen to accommodate more pixels on the screen, resulting in higher resolution. In a LCD TV, TFT transistors control the electric flow to the each sub-pixel of the screen.

Viewing angle

Viewing angle refers to the ultimate side-to-side angles between which the picture can be viewed.

Widescreen

See 16:9 aspect ratio.

Liquid Crystal Display (LCD) is what it is all about. Technology has changed so drastically that the most common home appliance, the Television too has now added to the group of LCD’s. With this LCD technology came the slim and the stylish looking monitors or television screens that has now replaced the monitors almost everywhere. From the living room to the bank lobbies one can find the LCD TV quite often on our way. The most common type of liquid crystal that is used in the LCD TV is the Twisted Nematic Liquid Crystals or the TNLC. The characteristic feature of how crystals react to electric current is what is reflected here. Hence the capability of the twistability of the crystals is the secret behind the LCD TV we get to see in our daily life.

The working of the LCD TV is by blocking the light. Upon the different voltage charge when passed on through them the liquid crystals untwist making way for the light to pass through it. Depending upon the twist and untwisting of the crystals the displays differ. Hence when the crystals are full twisted it gives out lighter display and when the crystals are fully untwisted it gives way to darker light state. Thus it’s upon the twisting and untwisting of the crystals that the LCD TV we know work on.

Advantages of LCD display over the ordinary displays

LCD TV display good quality picture under any light conditions, one does not have to put on or off lights to get a clear picture from it. The LCD displays gives out a flicker free display and hence it’s not at all a strain for your eyes. The monitor or TV with an LCD can be viewed from any corner of the room as it is supported with a flat screen. The flat LCD monitor or TV again is a stylish and yet a futuristic one when compared to the ordinary monitors or TV.

The dot pitch is one important factor that really shows out the difference in the picture display in an LCD. Sharper images are reproduced when the dots gets closer and closer. The display of the LCD is but yet too improved when compared to Plasma TV displays. Recent studies have shown that the LCD newer versions have come up with a display equally comparable to that of a Plasma display. But this is just the case of some very improved branded versions of LCD displays. But in the long run it assures to give the same comparable display that a Plasma display can give.

Considering the way the pixels work in a LCD monitor to get a clear and sharp picture its better to go for screens that are up to 27”. The larger the screen becomes you will experience the picture may slightly go off or get faded. The chances of this are higher when the screen size gets more than 37”. But there are monitors available with a larger screen but the quality of the picture is in question and make sure you do not end up going for a cheaper brand that assures you high quality picture. If your choice is to get a wider screen then you would better make a choice of plasma monitor than a LCD TV monitor.

The life time of an LCD TV is also impressive and the average lifespan of these televisions are 60000 hours. That is to say that if you are watching your LCD TV for 24 hours continuously as day, then it will surely take 7 full years for your TV to get worn out.

When you buy an LCD TV you should decide on the right screen size based on your budget and your room size where you want to keep it. Consider how you are going to install your TV. The place where you install the device will enhance the beauty of the room, so it is up to you to decide where you want to keep it. You can mount your flat-panel LCD display on almost any wall in your home. The various methods of installing them include ceiling mounts, table top, articulating wall mounts, tilt wall mounts and flat wall mounts.

It is advisable to watch your LCD TV at a reasonable distance. When viewed very closely you can see the pixels of the LCD displays hence let’s go through some list which will give you the idea what distance you have to keep making a perfect picture from your LCD.

    LCD display                                 Your seating distance from TV
20-27 inch display                                       2.5 to 5 feet
32 – 37 inch display                                        6 to 8 feet
42 – 46 inch display                                      10 to 14 feet
50 inch display                                               12 to 16 feet

Thus keeping the distance mentioned in the table can help you get the perfect picture quality regarding on the size of your LCD TV. Hence by using it in the proper way one could not have many problems to face but own a piece of LCD that give the ultimate sharp picture quality you could ever get.

While you view images on the screen, numerous liquid crystals will sit behind the screen. As soon as electricity flows on those pixels, light will be produced through 3 distinct chambers namely green, red and blue. These light beams are the determinant of actual colour appearance on the LCD screen. The display may vary due to the variations in the light. This is the process behind the liquid crystal technology.

PROS OF LCD TV

As LCD televisions are produced as flat screen panels, you need not to allot huge space to keep them. They need only little space to place itself. Most of the LCD televisions have come with wall mounting facility. Therefore you can mount them on your wall like a painting. Believe it or not, it is possible to replace a 32 inches CRT with 40 inches LCD technology. These LCD televisions can be maintained easily and they will be dust free. LCD technology does not use scanning lines as plasma; therefore you can view flicker-free images on the thin screen. Being a flat panel TV you can have a wide viewing angle as well. LCD televisions look very stylish and they are fabulous in its appearance.

THINGS TO BE CONSIDERED

• HD compatibility
High Definition compatibility is an advanced system which is necessary to transmit high quality television signals.

• HDMI
HDMI is an acronym of ‘High Definition Media Interface’ which is an advanced input component.

• S-Video
S-Video is a short form of ‘Super Video’ which is also an input and it permits you to plug additional AV equipment with your LCD TV.

• Auto format switching
It is an essential function which permits the users to choose best aspect ratio which suits to the appropriate broadcasting.