Cheap Lcd Tv

Frequently used HD Jargon buster

As technology remains on the high new terminology and jargon is used. This Jargon and terminology can be difficult to understand. We have put together a guide for common terms used which should help you understand all you need to know when choosing your new set.



Pixels

Pixels are small dots on the screen. It is the pixels that form the picture on your screen that you see. The more pixels the better the picture quality.



HDMI

HDMI stands for High Definition Multimedia Interface. This is a digital connection for video and audio data. They can be found on all HD ready TVs, digital camcorders and dvd recorders plus many more devices that support HD. With a single HDMI cable you can be sure to get the high quality video signal from your device to your TV to ensure true HD picture quality.



Component video

This is a connector made up of 3 RCA jacks, usually red green and blue. The 3 jacks carry component video signals that conveys the picture information



EPG

EPG stands for Electronic Programme Guide. This is an onscreen display of channels and programme data. Usually comes as a now and next function along with a 7 day guide just like a what’s on TV guide



DVI

DVI stands for Digital Video Interface. This is a type of cable connector which provides a high bandwidth connection between a video source and display device



Bit Rate

Bit Rate is measured by bits per a second or bps. This measures the rate at which data is transmitted. So the higher you find the Bit Rate or bps the better the sound quality and image.



Aspect Ratio

This Refers to the ratio of the picture with common names such as widescreen or letter box. It is the ratio of the pictures width relative to the height. The aspect ration of a HDTV is 16:9 whereas a standard TV is 4:3



Contrast Ratio

Contrast ratio is a comparison of a screens whitest white and blackest black. A higher contrast ratio indicates that on screen colours will be richer.



Viewing Angle

LCDs were originally designed as computer monitors, and as such were designed for head on viewing. Viewed at an angle these early screens lost much of their contrast and brightness. In response to this manufacturers are continually increasing viewing angles for LCDs where the quality is retained. Viewing angles as high as 176 degrees are now being achieved.



LCD TV

LCD stands for liquid crystal display. Its if formed of hundreds of thousands of small lcd pixels that sit behind the tv screen. These pixels are charged through a fluorescent white backlight that sits behind the pixels. The light charges the pixels by sending an electric current and determines what colour should be shown, and the millions of tiny light variations make up the image that you see on your TV.



Plasma TV

Plasma screens are different to lcd technology. Plasma screens use the technology of xenon and neon gas which fills thousands of tiny chambers. Plasma screens are actually made up of 2 screens of glass and the xenon and neon gas is placed between both of the screens. Behind the tiny chambers that are filled by the gas there are a series of red, blue and green phosphors. When electricity hits the plasma chambers, they emit invisible UV light, which then hits one of the coloured phosphors. This creates a visible image on the screen.

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