|
|
|
Nowadays, you will find that many people are opting for LCD TVs, as they are thin and light in weight. In addition to this, these TVs also enhance the TV viewing experience of users. LCD is an abbreviation of liquid crystal display. With this sort of TV, there are liquid crystals which help in displaying the images.
How an LCD TV works
The liquid crystals which are present in the TV are sandwiched between two plates of glass. By placing them in an electrical field, their properties can be altered. In different states they will allow the transfer of light to different degrees, from no light at all, to produce black on screen, to allowing all light to create white.
It is not the liquid crystals themselves that create the light, rather the light is created by fluorescent backlighting. The backlighting is diffused by a white panel, the purpose of which is to create an even level of light across the whole screen.
The different levels of light are created through altering the voltage to each liquid crystal. There are two main methods for controlling this voltage – passive matrix structure and active matrix structure. LCD TVs use advanced active matrix structure. With this arrangement, electrodes can affect individual pixels without affecting what is adjacent. This allows for precise, accurate images. Details are clearer and colours more precise.
In terms of colour, every pixel has sub-pixels representing red, green and blue. Certain colours can be filtered out to different degrees, allowing the creation of any colour through the combination of red, green and blue.
Why buying LCD TVs is beneficial
These TVs can also be used for multiple purposes, for HDTV viewing, obviously, but also for video games systems etc. In addition to this, these TVs also have composite video input and RGB input.
One of the best things about LCD TVs is that they have energy efficient fluorescent backlights, so they help in saving a lot of energy. Besides these advantages, LCD TVs also offer various benefits such as:
Occupy less space – LCD TVs are available in various sizes such as from 15 inches to 45 inches. Although they come in with a huge screen, they occupy less space, compared to CRT TVs due to their flat nature. It is common for people to mount them on the wall, thus saving even more space in the room.
High quality video and audio – These TVs are known for offering high video quality which helps in enhancing your TV viewing experience. Compare an LCD TV to an older TV and you can clearly see the difference, particularly on larger screen sizes where flaws are exaggerated and become more apparent.
At present, you will find various great features in LCD TVs but you need to consider some factors such as the contrast ratio, colour and also the brightness of the images before you make a purchase. In terms of colour, these TVs generally produces more than 16 million colours. In terms of brightness, the brightness of the TV is measured in ANSI lumens - more lumens means better picture quality. After considering all these factors, you will be able to purchase a high quality LCD TV within your budget.
|
|
|
Keywords:
televisions, lcd tv, Reviews, TV, Tvs, lcd tv reviews, tv info, tv news |
|
|
